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-rw-r--r--svm/Makefile.am30
-rw-r--r--svm/configure.ac7
-rw-r--r--svm/dir.dox21
-rw-r--r--svm/persist.c258
-rw-r--r--svm/ssvm.c178
-rw-r--r--svm/ssvm.h155
-rw-r--r--svm/svm.c1237
-rw-r--r--svm/svm.h207
-rw-r--r--svm/svm_test.c79
-rw-r--r--svm/svmdb.c671
-rw-r--r--svm/svmdb.h135
-rw-r--r--svm/svmdbtool.c537
-rw-r--r--svm/svmtool.c528
13 files changed, 0 insertions, 4043 deletions
diff --git a/svm/Makefile.am b/svm/Makefile.am
deleted file mode 100644
index 490e27b33a6..00000000000
--- a/svm/Makefile.am
+++ /dev/null
@@ -1,30 +0,0 @@
-# Copyright (c) 2015 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-AUTOMAKE_OPTIONS = foreign
-
-bin_PROGRAMS = svmtool svmdbtool
-
-AM_CFLAGS = -Wall
-
-nobase_include_HEADERS = svm.h ssvm.h svmdb.h
-
-lib_LTLIBRARIES = libsvm.la libsvmdb.la
-
-libsvm_la_SOURCES = svm.c ssvm.c
-
-svmtool_LDADD = libsvm.la -lvppinfra -lpthread -lrt
-
-libsvmdb_la_SOURCES = svmdb.c
-
-svmdbtool_LDADD = libsvmdb.la libsvm.la -lvppinfra -lpthread -lrt
diff --git a/svm/configure.ac b/svm/configure.ac
deleted file mode 100644
index 40b09606477..00000000000
--- a/svm/configure.ac
+++ /dev/null
@@ -1,7 +0,0 @@
-AC_INIT(svm, 1.0)
-LT_INIT
-AM_INIT_AUTOMAKE
-
-AM_SILENT_RULES([yes])
-
-AC_OUTPUT([Makefile])
diff --git a/svm/dir.dox b/svm/dir.dox
deleted file mode 100644
index 83246979ca8..00000000000
--- a/svm/dir.dox
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (c) 2016 Cisco and/or its affiliates.
- * Copyright (c) 2016 Comcast Cable Communications Management, LLC.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/* Doxygen directory documentation */
-/**
-@dir
-@brief Shared virtual memory allocation library.
-*/
diff --git a/svm/persist.c b/svm/persist.c
deleted file mode 100644
index 023c596b9cf..00000000000
--- a/svm/persist.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/*
- *------------------------------------------------------------------
- * persist.c - persistent data structure storage test / demo code
- *
- * Copyright (c) 2013 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-#include <vppinfra/serialize.h>
-#include <svmdb.h>
-
-typedef struct
-{
- svmdb_client_t *c;
-} persist_main_t;
-
-persist_main_t persist_main;
-
-typedef struct
-{
- u8 *string1;
- u8 *string2;
-} demo_struct2_t;
-
-typedef struct
-{
- demo_struct2_t *demo2;
- u8 *name;
-} demo_struct1_t;
-
-/*
- * Data structures in persistent shared memory, all the time
- */
-clib_error_t *
-persist_malloc (persist_main_t * pm)
-{
- demo_struct2_t *demo2;
- demo_struct1_t *demo1;
- time_t starttime = time (0);
- char *datestring = ctime (&starttime);
- void *oldheap;
-
- /* Get back the root pointer */
- demo1 = svmdb_local_get_variable_reference
- (pm->c, SVMDB_NAMESPACE_VEC, "demo1_location");
-
- /* It doesnt exist create our data structures */
- if (demo1 == 0)
- {
- /* If you want MP / thread safety, lock the region... */
- pthread_mutex_lock (&pm->c->db_rp->mutex);
-
- /* Switch to the shared memory region heap */
- oldheap = svm_push_data_heap (pm->c->db_rp);
-
- /* Allocate the top-level structure as a single element vector */
- vec_validate (demo1, 0);
-
- /* Allocate the next-level structure as a plain old memory obj */
- demo2 = clib_mem_alloc (sizeof (*demo2));
-
- demo1->demo2 = demo2;
- demo1->name = format (0, "My name is Ishmael%c", 0);
- demo2->string1 = format (0, "Here is string1%c", 0);
- demo2->string2 = format (0, "Born at %s%c", datestring, 0);
-
- /* Back to the process-private heap */
- svm_pop_heap (oldheap);
- pthread_mutex_unlock (&pm->c->db_rp->mutex);
-
- /*
- * Set the root pointer. Note: this guy switches heaps, locks, etc.
- * We allocated demo1 as a vector to make this "just work..."
- */
- svmdb_local_set_vec_variable (pm->c, "demo1_location",
- demo1, sizeof (demo1));
-
- }
- else
- {
- /* retrieve and print data from shared memory */
- demo2 = demo1->demo2;
- fformat (stdout, "name: %s\n", demo1->name);
- fformat (stdout, "demo2 location: %llx\n", demo2);
- fformat (stdout, "string1: %s\n", demo2->string1);
- fformat (stdout, "string2: %s\n", demo2->string2);
- }
- return 0;
-}
-
-void
-unserialize_demo1 (serialize_main_t * sm, va_list * args)
-{
- demo_struct1_t **result = va_arg (*args, demo_struct1_t **);
- demo_struct1_t *demo1;
- demo_struct2_t *demo2;
-
- /* Allocate data structures in process private memory */
- demo1 = clib_mem_alloc (sizeof (*demo1));
- demo2 = clib_mem_alloc (sizeof (*demo2));
- demo1->demo2 = demo2;
-
- /* retrieve data from shared memory checkpoint */
- unserialize_cstring (sm, (char **) &demo1->name);
- unserialize_cstring (sm, (char **) &demo2->string1);
- unserialize_cstring (sm, (char **) &demo2->string2);
- *result = demo1;
-}
-
-void
-serialize_demo1 (serialize_main_t * sm, va_list * args)
-{
- demo_struct1_t *demo1 = va_arg (*args, demo_struct1_t *);
- demo_struct2_t *demo2 = demo1->demo2;
-
- serialize_cstring (sm, (char *) demo1->name);
- serialize_cstring (sm, (char *) demo2->string1);
- serialize_cstring (sm, (char *) demo2->string2);
-}
-
-/* Serialize / unserialize variant */
-clib_error_t *
-persist_serialize (persist_main_t * pm)
-{
- u8 *checkpoint;
- serialize_main_t sm;
-
- demo_struct2_t *demo2;
- demo_struct1_t *demo1;
- time_t starttime = time (0);
- char *datestring = ctime (&starttime);
-
- /* Get back the root pointer */
- checkpoint = svmdb_local_get_vec_variable (pm->c, "demo1_checkpoint",
- sizeof (u8));
-
- /* It doesnt exist create our data structures */
- if (checkpoint == 0)
- {
- /* Allocate data structures in process-private memory */
- demo1 = clib_mem_alloc (sizeof (*demo2));
- vec_validate (demo1, 0);
- demo2 = clib_mem_alloc (sizeof (*demo2));
-
- demo1->demo2 = demo2;
- demo1->name = format (0, "My name is Ishmael%c", 0);
- demo2->string1 = format (0, "Here is string1%c", 0);
- demo2->string2 = format (0, "Born at %s%c", datestring, 0);
-
- /* Create checkpoint */
- serialize_open_vector (&sm, checkpoint);
- serialize (&sm, serialize_demo1, demo1);
- checkpoint = serialize_close_vector (&sm);
-
- /* Copy checkpoint into shared memory */
- svmdb_local_set_vec_variable (pm->c, "demo1_checkpoint",
- checkpoint, sizeof (u8));
- /* Toss the process-private-memory original.. */
- vec_free (checkpoint);
- }
- else
- {
- /* Open the checkpoint */
- unserialize_open_data (&sm, checkpoint, vec_len (checkpoint));
- unserialize (&sm, unserialize_demo1, &demo1);
-
- /* Toss the process-private-memory checkpoint copy */
- vec_free (checkpoint);
-
- /* Off we go... */
- demo2 = demo1->demo2;
- fformat (stdout, "name: %s\n", demo1->name);
- fformat (stdout, "demo2 location: %llx\n", demo2);
- fformat (stdout, "string1: %s\n", demo2->string1);
- fformat (stdout, "string2: %s\n", demo2->string2);
- }
- return 0;
-}
-
-
-int
-main (int argc, char **argv)
-{
- unformat_input_t _input, *input = &_input;
- persist_main_t *pm = &persist_main;
- clib_error_t *error = 0;
-
- /* Make a 4mb database arena, chroot so it's truly private */
- pm->c = svmdb_map_chroot_size ("/ptest", 4 << 20);
-
- ASSERT (pm->c);
-
- unformat_init_command_line (input, argv);
-
- while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (input, "malloc"))
- error = persist_malloc (pm);
- else if (unformat (input, "serialize"))
- error = persist_serialize (pm);
- else
- {
- error = clib_error_return (0, "Unknown flavor '%U'",
- format_unformat_error, input);
- break;
- }
- }
-
- svmdb_unmap (pm->c);
-
- if (error)
- {
- clib_error_report (error);
- exit (1);
- }
- return 0;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/ssvm.c b/svm/ssvm.c
deleted file mode 100644
index 6f409eb68b6..00000000000
--- a/svm/ssvm.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#include "ssvm.h"
-
-int
-ssvm_master_init (ssvm_private_t * ssvm, u32 master_index)
-{
- int ssvm_fd;
- u8 *ssvm_filename;
- u8 junk = 0;
- int flags;
- ssvm_shared_header_t *sh;
- u64 ticks = clib_cpu_time_now ();
- u64 randomize_baseva;
- void *oldheap;
-
- if (ssvm->ssvm_size == 0)
- return SSVM_API_ERROR_NO_SIZE;
-
- ssvm_filename = format (0, "/dev/shm/%s%c", ssvm->name, 0);
-
- unlink ((char *) ssvm_filename);
-
- vec_free (ssvm_filename);
-
- ssvm_fd = shm_open ((char *) ssvm->name, O_RDWR | O_CREAT | O_EXCL, 0777);
-
- if (ssvm_fd < 0)
- {
- clib_unix_warning ("create segment '%s'", ssvm->name);
- return SSVM_API_ERROR_CREATE_FAILURE;
- }
-
- if (lseek (ssvm_fd, ssvm->ssvm_size, SEEK_SET) < 0)
- {
- clib_unix_warning ("lseek");
- close (ssvm_fd);
- return SSVM_API_ERROR_SET_SIZE;
- }
-
- if (write (ssvm_fd, &junk, 1) != 1)
- {
- clib_unix_warning ("set ssvm size");
- close (ssvm_fd);
- return SSVM_API_ERROR_SET_SIZE;
- }
-
- flags = MAP_SHARED;
- if (ssvm->requested_va)
- flags |= MAP_FIXED;
-
- randomize_baseva = (ticks & 15) * MMAP_PAGESIZE;
-
- if (ssvm->requested_va)
- ssvm->requested_va += randomize_baseva;
-
- sh = ssvm->sh =
- (ssvm_shared_header_t *) mmap ((void *) ssvm->requested_va,
- ssvm->ssvm_size, PROT_READ | PROT_WRITE,
- flags, ssvm_fd, 0);
-
- if (ssvm->sh == MAP_FAILED)
- {
- clib_unix_warning ("mmap");
- close (ssvm_fd);
- return SSVM_API_ERROR_MMAP;
- }
-
- close (ssvm_fd);
-
- ssvm->my_pid = getpid ();
- sh->master_pid = ssvm->my_pid;
- sh->ssvm_size = ssvm->ssvm_size;
- sh->heap = mheap_alloc_with_flags
- (((u8 *) sh) + MMAP_PAGESIZE, ssvm->ssvm_size - MMAP_PAGESIZE,
- MHEAP_FLAG_DISABLE_VM | MHEAP_FLAG_THREAD_SAFE);
-
- sh->ssvm_va = pointer_to_uword (sh);
- sh->master_index = master_index;
-
- oldheap = ssvm_push_heap (sh);
- sh->name = format (0, "%s%c", ssvm->name, 0);
- ssvm_pop_heap (oldheap);
-
- ssvm->i_am_master = 1;
-
- /* The application has to set set sh->ready... */
- return 0;
-}
-
-int
-ssvm_slave_init (ssvm_private_t * ssvm, int timeout_in_seconds)
-{
- struct stat stat;
- int ssvm_fd = -1;
- ssvm_shared_header_t *sh;
-
- ssvm->i_am_master = 0;
-
- while (timeout_in_seconds-- > 0)
- {
- if (ssvm_fd < 0)
- ssvm_fd = shm_open ((char *) ssvm->name, O_RDWR, 0777);
- if (ssvm_fd < 0)
- {
- sleep (1);
- continue;
- }
- if (fstat (ssvm_fd, &stat) < 0)
- {
- sleep (1);
- continue;
- }
-
- if (stat.st_size > 0)
- goto map_it;
- }
- clib_warning ("slave timeout");
- return SSVM_API_ERROR_SLAVE_TIMEOUT;
-
-map_it:
- sh = (void *) mmap (0, MMAP_PAGESIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
- ssvm_fd, 0);
- if (sh == MAP_FAILED)
- {
- clib_unix_warning ("slave research mmap");
- close (ssvm_fd);
- return SSVM_API_ERROR_MMAP;
- }
-
- while (timeout_in_seconds-- > 0)
- {
- if (sh->ready)
- goto re_map_it;
- }
- close (ssvm_fd);
- munmap (sh, MMAP_PAGESIZE);
- clib_warning ("slave timeout 2");
- return SSVM_API_ERROR_SLAVE_TIMEOUT;
-
-re_map_it:
- ssvm->requested_va = (u64) sh->ssvm_va;
- ssvm->ssvm_size = sh->ssvm_size;
- munmap (sh, MMAP_PAGESIZE);
-
- sh = ssvm->sh = (void *) mmap ((void *) ssvm->requested_va, ssvm->ssvm_size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, ssvm_fd, 0);
-
- if (sh == MAP_FAILED)
- {
- clib_unix_warning ("slave final mmap");
- close (ssvm_fd);
- return SSVM_API_ERROR_MMAP;
- }
- sh->slave_pid = getpid ();
- return 0;
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/ssvm.h b/svm/ssvm.h
deleted file mode 100644
index 9e61b9a0827..00000000000
--- a/svm/ssvm.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef __included_ssvm_h__
-#define __included_ssvm_h__
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-
-#define MMAP_PAGESIZE (4<<10)
-#define SSVM_N_OPAQUE 7
-
-typedef struct
-{
- /* Spin-lock */
- volatile u32 lock;
- volatile u32 owner_pid;
- int recursion_count;
- u32 tag; /* for debugging */
-
- /* The allocation arena */
- void *heap;
-
- /* Segment must be mapped at this address, or no supper */
- u64 ssvm_va;
- /* The actual mmap size */
- u64 ssvm_size;
- u32 master_pid;
- u32 slave_pid;
- u8 *name;
- void *opaque[SSVM_N_OPAQUE];
-
- /* Set when the master application thinks it's time to make the donuts */
- volatile u32 ready;
-
- /* Needed to make unique MAC addresses, etc. */
- u32 master_index;
-} ssvm_shared_header_t;
-
-typedef struct
-{
- ssvm_shared_header_t *sh;
- u64 ssvm_size;
- u32 my_pid;
- u32 vlib_hw_if_index;
- u8 *name;
- uword requested_va;
- int i_am_master;
- u32 per_interface_next_index;
- u32 *rx_queue;
-} ssvm_private_t;
-
-always_inline void
-ssvm_lock (ssvm_shared_header_t * h, u32 my_pid, u32 tag)
-{
- if (h->owner_pid == my_pid)
- {
- h->recursion_count++;
- return;
- }
-
- while (__sync_lock_test_and_set (&h->lock, 1))
- ;
-
- h->owner_pid = my_pid;
- h->recursion_count = 1;
- h->tag = tag;
-}
-
-always_inline void
-ssvm_unlock (ssvm_shared_header_t * h)
-{
- if (--h->recursion_count == 0)
- {
- h->owner_pid = 0;
- h->tag = 0;
- CLIB_MEMORY_BARRIER ();
- h->lock = 0;
- }
-}
-
-static inline void *
-ssvm_push_heap (ssvm_shared_header_t * sh)
-{
- u8 *oldheap;
- oldheap = clib_mem_set_heap (sh->heap);
- return ((void *) oldheap);
-}
-
-static inline void
-ssvm_pop_heap (void *oldheap)
-{
- clib_mem_set_heap (oldheap);
-}
-
-#define foreach_ssvm_api_error \
-_(NO_NAME, "No shared segment name", -10) \
-_(NO_SIZE, "Size not set (master)", -11) \
-_(CREATE_FAILURE, "Create failed", -12) \
-_(SET_SIZE, "Set size failed", -13) \
-_(MMAP, "mmap failed", -14) \
-_(SLAVE_TIMEOUT, "Slave map timeout", -15)
-
-typedef enum
-{
-#define _(n,s,c) SSVM_API_ERROR_##n = c,
- foreach_ssvm_api_error
-#undef _
-} ssvm_api_error_enum_t;
-
-#define SSVM_API_ERROR_NO_NAME (-10)
-
-int ssvm_master_init (ssvm_private_t * ssvm, u32 master_index);
-int ssvm_slave_init (ssvm_private_t * ssvm, int timeout_in_seconds);
-
-#endif /* __included_ssvm_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svm.c b/svm/svm.c
deleted file mode 100644
index e4ca98e1ed2..00000000000
--- a/svm/svm.c
+++ /dev/null
@@ -1,1237 +0,0 @@
-/*
- *------------------------------------------------------------------
- * svm.c - shared VM allocation, mmap(...MAP_FIXED...)
- * library
- *
- * Copyright (c) 2009 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-
-#include "svm.h"
-
-static svm_region_t *root_rp;
-static int root_rp_refcount;
-
-#define MAXLOCK 2
-static pthread_mutex_t *mutexes_held[MAXLOCK];
-static int nheld;
-
-svm_region_t *
-svm_get_root_rp (void)
-{
- return root_rp;
-}
-
-#define MUTEX_DEBUG
-
-static void
-region_lock (svm_region_t * rp, int tag)
-{
- pthread_mutex_lock (&rp->mutex);
-#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = getpid ();
- rp->mutex_owner_tag = tag;
-#endif
- ASSERT (nheld < MAXLOCK);
- /*
- * Keep score of held mutexes so we can try to exit
- * cleanly if the world comes to an end at the worst possible
- * moment
- */
- mutexes_held[nheld++] = &rp->mutex;
-}
-
-static void
-region_unlock (svm_region_t * rp)
-{
- int i, j;
-#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = 0;
- rp->mutex_owner_tag = 0;
-#endif
-
- for (i = nheld - 1; i >= 0; i--)
- {
- if (mutexes_held[i] == &rp->mutex)
- {
- for (j = i; j < MAXLOCK - 1; j++)
- mutexes_held[j] = mutexes_held[j + 1];
- nheld--;
- goto found;
- }
- }
- ASSERT (0);
-
-found:
- CLIB_MEMORY_BARRIER ();
- pthread_mutex_unlock (&rp->mutex);
-}
-
-
-static u8 *
-format_svm_flags (u8 * s, va_list * args)
-{
- uword f = va_arg (*args, uword);
-
- if (f & SVM_FLAGS_MHEAP)
- s = format (s, "MHEAP ");
- if (f & SVM_FLAGS_FILE)
- s = format (s, "FILE ");
- if (f & SVM_FLAGS_NODATA)
- s = format (s, "NODATA ");
- if (f & SVM_FLAGS_NEED_DATA_INIT)
- s = format (s, "INIT ");
-
- return (s);
-}
-
-static u8 *
-format_svm_size (u8 * s, va_list * args)
-{
- uword size = va_arg (*args, uword);
-
- if (size >= (1 << 20))
- {
- s = format (s, "(%d mb)", size >> 20);
- }
- else if (size >= (1 << 10))
- {
- s = format (s, "(%d kb)", size >> 10);
- }
- else
- {
- s = format (s, "(%d bytes)", size);
- }
- return (s);
-}
-
-u8 *
-format_svm_region (u8 * s, va_list * args)
-{
- svm_region_t *rp = va_arg (*args, svm_region_t *);
- int verbose = va_arg (*args, int);
- int i;
- uword lo, hi;
-
- s = format (s, "%s: base va 0x%x size 0x%x %U\n",
- rp->region_name, rp->virtual_base,
- rp->virtual_size, format_svm_size, rp->virtual_size);
- s = format (s, " user_ctx 0x%x, bitmap_size %d\n",
- rp->user_ctx, rp->bitmap_size);
-
- if (verbose)
- {
- s = format (s, " flags: 0x%x %U\n", rp->flags,
- format_svm_flags, rp->flags);
- s = format (s,
- " region_heap 0x%x data_base 0x%x data_heap 0x%x\n",
- rp->region_heap, rp->data_base, rp->data_heap);
- }
-
- s = format (s, " %d clients, pids: ", vec_len (rp->client_pids));
-
- for (i = 0; i < vec_len (rp->client_pids); i++)
- s = format (s, "%d ", rp->client_pids[i]);
-
- s = format (s, "\n");
-
- if (verbose)
- {
- lo = hi = ~0;
-
- s = format (s, " VM in use: ");
-
- for (i = 0; i < rp->bitmap_size; i++)
- {
- if (clib_bitmap_get_no_check (rp->bitmap, i) != 0)
- {
- if (lo == ~0)
- {
- hi = lo = rp->virtual_base + i * MMAP_PAGESIZE;
- }
- else
- {
- hi = rp->virtual_base + i * MMAP_PAGESIZE;
- }
- }
- else
- {
- if (lo != ~0)
- {
- hi = rp->virtual_base + i * MMAP_PAGESIZE - 1;
- s = format (s, " 0x%x - 0x%x (%dk)\n", lo, hi,
- (hi - lo) >> 10);
- lo = hi = ~0;
- }
- }
- }
- s = format (s, " rgn heap stats: %U", format_mheap,
- rp->region_heap, 0);
- if ((rp->flags & SVM_FLAGS_MHEAP) && rp->data_heap)
- {
- s = format (s, "\n data heap stats: %U", format_mheap,
- rp->data_heap, 1);
- }
- s = format (s, "\n");
- }
-
- return (s);
-}
-
-/*
- * rnd_pagesize
- * Round to a pagesize multiple, presumably 4k works
- */
-static u64
-rnd_pagesize (u64 size)
-{
- u64 rv;
-
- rv = (size + (MMAP_PAGESIZE - 1)) & ~(MMAP_PAGESIZE - 1);
- return (rv);
-}
-
-/*
- * svm_data_region_setup
- */
-static int
-svm_data_region_create (svm_map_region_args_t * a, svm_region_t * rp)
-{
- int fd;
- u8 junk = 0;
- uword map_size;
-
- map_size = rp->virtual_size - (MMAP_PAGESIZE +
- (a->pvt_heap_size ? a->pvt_heap_size :
- SVM_PVT_MHEAP_SIZE));
-
- if (a->flags & SVM_FLAGS_FILE)
- {
- struct stat statb;
-
- fd = open (a->backing_file, O_RDWR | O_CREAT, 0777);
-
- if (fd < 0)
- {
- clib_unix_warning ("open");
- return -1;
- }
-
- if (fstat (fd, &statb) < 0)
- {
- clib_unix_warning ("fstat");
- close (fd);
- return -2;
- }
-
- if (statb.st_mode & S_IFREG)
- {
- if (statb.st_size == 0)
- {
- if (lseek (fd, map_size, SEEK_SET) == (off_t) - 1)
- {
- clib_unix_warning ("seek region size");
- close (fd);
- return -3;
- }
- if (write (fd, &junk, 1) != 1)
- {
- clib_unix_warning ("set region size");
- close (fd);
- return -3;
- }
- }
- else
- {
- map_size = rnd_pagesize (statb.st_size);
- }
- }
- else
- {
- map_size = a->backing_mmap_size;
- }
-
- ASSERT (map_size <= rp->virtual_size -
- (MMAP_PAGESIZE + SVM_PVT_MHEAP_SIZE));
-
- if (mmap (rp->data_base, map_size, PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, fd, 0) == MAP_FAILED)
- {
- clib_unix_warning ("mmap");
- close (fd);
- return -3;
- }
- close (fd);
- rp->backing_file = (char *) format (0, "%s\0", a->backing_file);
- rp->flags |= SVM_FLAGS_FILE;
- }
-
- if (a->flags & SVM_FLAGS_MHEAP)
- {
- rp->data_heap =
- mheap_alloc_with_flags ((void *) (rp->data_base), map_size,
- MHEAP_FLAG_DISABLE_VM);
- rp->flags |= SVM_FLAGS_MHEAP;
- }
- return 0;
-}
-
-static int
-svm_data_region_map (svm_map_region_args_t * a, svm_region_t * rp)
-{
- int fd;
- u8 junk = 0;
- uword map_size;
- struct stat statb;
-
- map_size = rp->virtual_size -
- (MMAP_PAGESIZE
- + (a->pvt_heap_size ? a->pvt_heap_size : SVM_PVT_MHEAP_SIZE));
-
- if (a->flags & SVM_FLAGS_FILE)
- {
-
- fd = open (a->backing_file, O_RDWR, 0777);
-
- if (fd < 0)
- {
- clib_unix_warning ("open");
- return -1;
- }
-
- if (fstat (fd, &statb) < 0)
- {
- clib_unix_warning ("fstat");
- close (fd);
- return -2;
- }
-
- if (statb.st_mode & S_IFREG)
- {
- if (statb.st_size == 0)
- {
- if (lseek (fd, map_size, SEEK_SET) == (off_t) - 1)
- {
- clib_unix_warning ("seek region size");
- close (fd);
- return -3;
- }
- if (write (fd, &junk, 1) != 1)
- {
- clib_unix_warning ("set region size");
- close (fd);
- return -3;
- }
- }
- else
- {
- map_size = rnd_pagesize (statb.st_size);
- }
- }
- else
- {
- map_size = a->backing_mmap_size;
- }
-
- ASSERT (map_size <= rp->virtual_size
- - (MMAP_PAGESIZE
- +
- (a->pvt_heap_size ? a->pvt_heap_size : SVM_PVT_MHEAP_SIZE)));
-
- if (mmap (rp->data_base, map_size, PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, fd, 0) == MAP_FAILED)
- {
- clib_unix_warning ("mmap");
- close (fd);
- return -3;
- }
- close (fd);
- }
- return 0;
-}
-
-u8 *
-shm_name_from_svm_map_region_args (svm_map_region_args_t * a)
-{
- u8 *path;
- u8 *shm_name;
- u8 *split_point;
- u8 *mkdir_arg = 0;
- int root_path_offset = 0;
- int name_offset = 0;
-
- if (a->root_path)
- {
- /* Tolerate present or absent slashes */
- if (a->root_path[0] == '/')
- root_path_offset++;
-
- /* create the root_path under /dev/shm
- iterate through path creating directories */
-
- path = format (0, "/dev/shm/%s%c", &a->root_path[root_path_offset], 0);
- split_point = path + 1;
- vec_add1 (mkdir_arg, '-');
-
- while (*split_point)
- {
- while (*split_point && *split_point != '/')
- {
- vec_add1 (mkdir_arg, *split_point);
- split_point++;
- }
- vec_add1 (mkdir_arg, 0);
-
- /* ready to descend another level */
- mkdir_arg[vec_len (mkdir_arg) - 1] = '-';
- split_point++;
- }
- vec_free (mkdir_arg);
- vec_free (path);
-
- if (a->name[0] == '/')
- name_offset = 1;
-
- shm_name = format (0, "/%s-%s%c", a->root_path,
- &a->name[name_offset], 0);
- }
- else
- shm_name = format (0, "%s%c", a->name, 0);
- return (shm_name);
-}
-
-/*
- * svm_map_region
- */
-void *
-svm_map_region (svm_map_region_args_t * a)
-{
- int svm_fd;
- svm_region_t *rp;
- pthread_mutexattr_t attr;
- pthread_condattr_t cattr;
- int deadman = 0;
- u8 junk = 0;
- void *oldheap;
- int overhead_space;
- int rv;
- uword data_base;
- int nbits, words, bit;
- int pid_holding_region_lock;
- u8 *shm_name;
- int dead_region_recovery = 0;
- int time_left;
- struct stat stat;
- struct timespec ts, tsrem;
-
- if (CLIB_DEBUG > 1)
- clib_warning ("[%d] map region %s", getpid (), a->name);
-
- ASSERT ((a->size & ~(MMAP_PAGESIZE - 1)) == a->size);
- ASSERT (a->name);
-
- shm_name = shm_name_from_svm_map_region_args (a);
-
- svm_fd = shm_open ((char *) shm_name, O_RDWR | O_CREAT | O_EXCL, 0777);
-
- if (svm_fd >= 0)
- {
- if (fchmod (svm_fd, 0770) < 0)
- clib_unix_warning ("segment chmod");
- /* This turns out to fail harmlessly if the client starts first */
- if (fchown (svm_fd, a->uid, a->gid) < 0)
- clib_unix_warning ("segment chown [ok if client starts first]");
-
- vec_free (shm_name);
-
- if (lseek (svm_fd, a->size, SEEK_SET) == (off_t) - 1)
- {
- clib_warning ("seek region size");
- close (svm_fd);
- return (0);
- }
- if (write (svm_fd, &junk, 1) != 1)
- {
- clib_warning ("set region size");
- close (svm_fd);
- return (0);
- }
-
- rp = mmap ((void *) a->baseva, a->size,
- PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, svm_fd, 0);
-
- if (rp == (svm_region_t *) MAP_FAILED)
- {
- clib_unix_warning ("mmap create");
- close (svm_fd);
- return (0);
- }
- close (svm_fd);
- memset (rp, 0, sizeof (*rp));
-
- if (pthread_mutexattr_init (&attr))
- clib_unix_warning ("mutexattr_init");
-
- if (pthread_mutexattr_setpshared (&attr, PTHREAD_PROCESS_SHARED))
- clib_unix_warning ("mutexattr_setpshared");
-
- if (pthread_mutex_init (&rp->mutex, &attr))
- clib_unix_warning ("mutex_init");
-
- if (pthread_mutexattr_destroy (&attr))
- clib_unix_warning ("mutexattr_destroy");
-
- if (pthread_condattr_init (&cattr))
- clib_unix_warning ("condattr_init");
-
- if (pthread_condattr_setpshared (&cattr, PTHREAD_PROCESS_SHARED))
- clib_unix_warning ("condattr_setpshared");
-
- if (pthread_cond_init (&rp->condvar, &cattr))
- clib_unix_warning ("cond_init");
-
- if (pthread_condattr_destroy (&cattr))
- clib_unix_warning ("condattr_destroy");
-
- region_lock (rp, 1);
-
- rp->virtual_base = a->baseva;
- rp->virtual_size = a->size;
-
- rp->region_heap =
- mheap_alloc_with_flags ((void *) (a->baseva + MMAP_PAGESIZE),
- (a->pvt_heap_size != 0) ?
- a->pvt_heap_size : SVM_PVT_MHEAP_SIZE,
- MHEAP_FLAG_DISABLE_VM);
- oldheap = svm_push_pvt_heap (rp);
-
- rp->region_name = (char *) format (0, "%s%c", a->name, 0);
- vec_add1 (rp->client_pids, getpid ());
-
- nbits = rp->virtual_size / MMAP_PAGESIZE;
-
- ASSERT (nbits > 0);
- rp->bitmap_size = nbits;
- words = (nbits + BITS (uword) - 1) / BITS (uword);
- vec_validate (rp->bitmap, words - 1);
-
- overhead_space = MMAP_PAGESIZE /* header */ +
- ((a->pvt_heap_size != 0) ? a->pvt_heap_size : SVM_PVT_MHEAP_SIZE);
-
- bit = 0;
- data_base = (uword) rp->virtual_base;
-
- if (a->flags & SVM_FLAGS_NODATA)
- rp->flags |= SVM_FLAGS_NEED_DATA_INIT;
-
- do
- {
- clib_bitmap_set_no_check (rp->bitmap, bit, 1);
- bit++;
- overhead_space -= MMAP_PAGESIZE;
- data_base += MMAP_PAGESIZE;
- }
- while (overhead_space > 0);
-
- rp->data_base = (void *) data_base;
-
- /*
- * Note: although the POSIX spec guarantees that only one
- * process enters this block, we have to play games
- * to hold off clients until e.g. the mutex is ready
- */
- rp->version = SVM_VERSION;
-
- /* setup the data portion of the region */
-
- rv = svm_data_region_create (a, rp);
- if (rv)
- {
- clib_warning ("data_region_create: %d", rv);
- }
-
- region_unlock (rp);
-
- svm_pop_heap (oldheap);
-
- return ((void *) rp);
- }
- else
- {
- svm_fd = shm_open ((char *) shm_name, O_RDWR, 0777);
-
- vec_free (shm_name);
-
- if (svm_fd < 0)
- {
- perror ("svm_region_map(mmap open)");
- return (0);
- }
-
- time_left = 20;
- while (1)
- {
- if (0 != fstat (svm_fd, &stat))
- {
- clib_warning ("fstat failed: %d", errno);
- close (svm_fd);
- return (0);
- }
- if (stat.st_size > 0)
- {
- break;
- }
- if (0 == time_left)
- {
- clib_warning ("waiting for resize of shm file timed out");
- close (svm_fd);
- return (0);
- }
- ts.tv_sec = 0;
- ts.tv_nsec = 100000000;
- while (nanosleep (&ts, &tsrem) < 0)
- ts = tsrem;
- time_left--;
- }
-
- rp = mmap (0, MMAP_PAGESIZE,
- PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
-
- if (rp == (svm_region_t *) MAP_FAILED)
- {
- close (svm_fd);
- clib_warning ("mmap");
- return (0);
- }
- /*
- * We lost the footrace to create this region; make sure
- * the winner has crossed the finish line.
- */
- while (rp->version == 0 && deadman++ < 5)
- {
- sleep (1);
- }
-
- /*
- * <bleep>-ed?
- */
- if (rp->version == 0)
- {
- clib_warning ("rp->version %d not %d", rp->version, SVM_VERSION);
- close (svm_fd);
- munmap (rp, a->size);
- return (0);
- }
- /* Remap now that the region has been placed */
- a->baseva = rp->virtual_base;
- a->size = rp->virtual_size;
- munmap (rp, MMAP_PAGESIZE);
-
- rp = (void *) mmap ((void *) a->baseva, a->size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, svm_fd, 0);
- if ((uword) rp == (uword) MAP_FAILED)
- {
- clib_unix_warning ("mmap");
- close (svm_fd);
- return (0);
- }
-
- if ((uword) rp != rp->virtual_base)
- {
- clib_warning ("mmap botch");
- }
-
- /*
- * Try to fix the region mutex if it is held by
- * a dead process
- */
- pid_holding_region_lock = rp->mutex_owner_pid;
- if (pid_holding_region_lock && kill (pid_holding_region_lock, 0) < 0)
- {
- clib_warning
- ("region %s mutex held by dead pid %d, tag %d, force unlock",
- rp->region_name, pid_holding_region_lock, rp->mutex_owner_tag);
- /* owner pid is nonexistent */
- rp->mutex.__data.__owner = 0;
- rp->mutex.__data.__lock = 0;
- dead_region_recovery = 1;
- }
-
- if (dead_region_recovery)
- clib_warning ("recovery: attempt to re-lock region");
-
- region_lock (rp, 2);
- oldheap = svm_push_pvt_heap (rp);
- vec_add1 (rp->client_pids, getpid ());
-
- if (dead_region_recovery)
- clib_warning ("recovery: attempt svm_data_region_map");
-
- rv = svm_data_region_map (a, rp);
- if (rv)
- {
- clib_warning ("data_region_map: %d", rv);
- }
-
- if (dead_region_recovery)
- clib_warning ("unlock and continue");
-
- region_unlock (rp);
-
- svm_pop_heap (oldheap);
-
- return ((void *) rp);
-
- }
- return 0; /* NOTREACHED */
-}
-
-static void
-svm_mutex_cleanup (void)
-{
- int i;
- for (i = 0; i < nheld; i++)
- {
- pthread_mutex_unlock (mutexes_held[i]);
- }
-}
-
-static void
-svm_region_init_internal (svm_map_region_args_t * a)
-{
- svm_region_t *rp;
- u64 ticks = clib_cpu_time_now ();
- uword randomize_baseva;
-
- /* guard against klutz calls */
- if (root_rp)
- return;
-
- root_rp_refcount++;
-
- atexit (svm_mutex_cleanup);
-
- /* Randomize the shared-VM base at init time */
- if (MMAP_PAGESIZE <= (4 << 10))
- randomize_baseva = (ticks & 15) * MMAP_PAGESIZE;
- else
- randomize_baseva = (ticks & 3) * MMAP_PAGESIZE;
-
- a->baseva += randomize_baseva;
-
- rp = svm_map_region (a);
- ASSERT (rp);
-
- region_lock (rp, 3);
-
- /* Set up the main region data structures */
- if (rp->flags & SVM_FLAGS_NEED_DATA_INIT)
- {
- svm_main_region_t *mp = 0;
- void *oldheap;
-
- rp->flags &= ~(SVM_FLAGS_NEED_DATA_INIT);
-
- oldheap = svm_push_pvt_heap (rp);
- vec_validate (mp, 0);
- mp->name_hash = hash_create_string (0, sizeof (uword));
- mp->root_path = a->root_path ? format (0, "%s%c", a->root_path, 0) : 0;
- rp->data_base = mp;
- svm_pop_heap (oldheap);
- }
- region_unlock (rp);
- root_rp = rp;
-}
-
-void
-svm_region_init (void)
-{
- svm_map_region_args_t _a, *a = &_a;
-
- memset (a, 0, sizeof (*a));
- a->root_path = 0;
- a->name = SVM_GLOBAL_REGION_NAME;
- a->baseva = SVM_GLOBAL_REGION_BASEVA;
- a->size = SVM_GLOBAL_REGION_SIZE;
- a->flags = SVM_FLAGS_NODATA;
- a->uid = 0;
- a->gid = 0;
-
- svm_region_init_internal (a);
-}
-
-void
-svm_region_init_chroot (char *root_path)
-{
- svm_map_region_args_t _a, *a = &_a;
-
- memset (a, 0, sizeof (*a));
- a->root_path = root_path;
- a->name = SVM_GLOBAL_REGION_NAME;
- a->baseva = SVM_GLOBAL_REGION_BASEVA;
- a->size = SVM_GLOBAL_REGION_SIZE;
- a->flags = SVM_FLAGS_NODATA;
- a->uid = 0;
- a->gid = 0;
-
- svm_region_init_internal (a);
-}
-
-void
-svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid)
-{
- svm_map_region_args_t _a, *a = &_a;
-
- memset (a, 0, sizeof (*a));
- a->root_path = root_path;
- a->name = SVM_GLOBAL_REGION_NAME;
- a->baseva = SVM_GLOBAL_REGION_BASEVA;
- a->size = SVM_GLOBAL_REGION_SIZE;
- a->flags = SVM_FLAGS_NODATA;
- a->uid = uid;
- a->gid = gid;
-
- svm_region_init_internal (a);
-}
-
-void
-svm_region_init_args (svm_map_region_args_t * a)
-{
- svm_region_init_internal (a);
-}
-
-void *
-svm_region_find_or_create (svm_map_region_args_t * a)
-{
- svm_main_region_t *mp;
- svm_region_t *rp;
- uword need_nbits;
- int index, i;
- void *oldheap;
- uword *p;
- u8 *name;
- svm_subregion_t *subp;
-
- ASSERT (root_rp);
-
- a->size += MMAP_PAGESIZE +
- ((a->pvt_heap_size != 0) ? a->pvt_heap_size : SVM_PVT_MHEAP_SIZE);
- a->size = rnd_pagesize (a->size);
-
- region_lock (root_rp, 4);
- oldheap = svm_push_pvt_heap (root_rp);
- mp = root_rp->data_base;
-
- ASSERT (mp);
-
- /* Map the named region from the correct chroot environment */
- a->root_path = (char *) mp->root_path;
-
- /*
- * See if this region is already known. If it is, we're
- * almost done...
- */
- p = hash_get_mem (mp->name_hash, a->name);
-
- if (p)
- {
- rp = svm_map_region (a);
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
- return rp;
- }
-
- /* Create the region. */
- ASSERT ((a->size & ~(MMAP_PAGESIZE - 1)) == a->size);
-
- need_nbits = a->size / MMAP_PAGESIZE;
-
- index = 1; /* $$$ fixme, figure out how many bit to really skip */
-
- /*
- * Scan the virtual space allocation bitmap, looking for a large
- * enough chunk
- */
- do
- {
- if (clib_bitmap_get_no_check (root_rp->bitmap, index) == 0)
- {
- for (i = 0; i < (need_nbits - 1); i++)
- {
- if (clib_bitmap_get_no_check (root_rp->bitmap, index + i) == 1)
- {
- index = index + i;
- goto next;
- }
- }
- break;
- }
- index++;
- next:;
- }
- while (index < root_rp->bitmap_size);
-
- /* Completely out of VM? */
- if (index >= root_rp->bitmap_size)
- {
- clib_warning ("region %s: not enough VM to allocate 0x%llx (%lld)",
- root_rp->region_name, a->size, a->size);
- svm_pop_heap (oldheap);
- region_unlock (root_rp);
- return 0;
- }
-
- /*
- * Mark virtual space allocated
- */
-#if CLIB_DEBUG > 1
- clib_warning ("set %d bits at index %d", need_nbits, index);
-#endif
-
- for (i = 0; i < need_nbits; i++)
- {
- clib_bitmap_set_no_check (root_rp->bitmap, index + i, 1);
- }
-
- /* Place this region where it goes... */
- a->baseva = root_rp->virtual_base + index * MMAP_PAGESIZE;
-
- rp = svm_map_region (a);
-
- pool_get (mp->subregions, subp);
- name = format (0, "%s%c", a->name, 0);
- subp->subregion_name = name;
-
- hash_set_mem (mp->name_hash, name, subp - mp->subregions);
-
- svm_pop_heap (oldheap);
-
- region_unlock (root_rp);
-
- return (rp);
-}
-
-/*
- * svm_region_unmap
- *
- * Let go of the indicated region. If the calling process
- * is the last customer, throw it away completely.
- * The root region mutex guarantees atomicity with respect to
- * a new region client showing up at the wrong moment.
- */
-void
-svm_region_unmap (void *rp_arg)
-{
- int i, mypid = getpid ();
- int nclients_left;
- void *oldheap;
- uword virtual_base, virtual_size;
- svm_region_t *rp = rp_arg;
- char *name;
-
- /*
- * If we take a signal while holding one or more shared-memory
- * mutexes, we may end up back here from an otherwise
- * benign exit handler. Bail out to avoid a recursive
- * mutex screw-up.
- */
- if (nheld)
- return;
-
- ASSERT (rp);
- ASSERT (root_rp);
-
- if (CLIB_DEBUG > 1)
- clib_warning ("[%d] unmap region %s", getpid (), rp->region_name);
-
- region_lock (root_rp, 5);
- region_lock (rp, 6);
-
- oldheap = svm_push_pvt_heap (rp); /* nb vec_delete() in the loop */
-
- /* Remove the caller from the list of mappers */
- for (i = 0; i < vec_len (rp->client_pids); i++)
- {
- if (rp->client_pids[i] == mypid)
- {
- vec_delete (rp->client_pids, 1, i);
- goto found;
- }
- }
- clib_warning ("pid %d AWOL", mypid);
-
-found:
-
- svm_pop_heap (oldheap);
-
- nclients_left = vec_len (rp->client_pids);
- virtual_base = rp->virtual_base;
- virtual_size = rp->virtual_size;
-
- if (nclients_left == 0)
- {
- int index, nbits, i;
- svm_main_region_t *mp;
- uword *p;
- svm_subregion_t *subp;
-
- /* Kill the region, last guy on his way out */
-
- oldheap = svm_push_pvt_heap (root_rp);
- name = vec_dup (rp->region_name);
-
- virtual_base = rp->virtual_base;
- virtual_size = rp->virtual_size;
-
- /* Figure out which bits to clear in the root region bitmap */
- index = (virtual_base - root_rp->virtual_base) / MMAP_PAGESIZE;
-
- nbits = (virtual_size + MMAP_PAGESIZE - 1) / MMAP_PAGESIZE;
-
-#if CLIB_DEBUG > 1
- clib_warning ("clear %d bits at index %d", nbits, index);
-#endif
- /* Give back the allocated VM */
- for (i = 0; i < nbits; i++)
- {
- clib_bitmap_set_no_check (root_rp->bitmap, index + i, 0);
- }
-
- mp = root_rp->data_base;
-
- p = hash_get_mem (mp->name_hash, name);
-
- /* Better never happen ... */
- if (p == NULL)
- {
- region_unlock (rp);
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
- clib_warning ("Region name '%s' not found?", name);
- return;
- }
-
- /* Remove from the root region subregion pool */
- subp = mp->subregions + p[0];
- pool_put (mp->subregions, subp);
-
- hash_unset_mem (mp->name_hash, name);
-
- vec_free (name);
-
- region_unlock (rp);
- shm_unlink (rp->region_name);
- munmap ((void *) virtual_base, virtual_size);
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
- return;
- }
-
- region_unlock (rp);
- region_unlock (root_rp);
-
- munmap ((void *) virtual_base, virtual_size);
-}
-
-/*
- * svm_region_exit
- * There is no clean way to unlink the
- * root region when all clients go away,
- * so remove the pid entry and call it a day.
- */
-void
-svm_region_exit ()
-{
- void *oldheap;
- int i, mypid = getpid ();
- uword virtual_base, virtual_size;
-
- /* It felt so nice we did it twice... */
- if (root_rp == 0)
- return;
-
- if (--root_rp_refcount > 0)
- return;
-
- /*
- * If we take a signal while holding one or more shared-memory
- * mutexes, we may end up back here from an otherwise
- * benign exit handler. Bail out to avoid a recursive
- * mutex screw-up.
- */
- if (nheld)
- return;
-
- region_lock (root_rp, 7);
- oldheap = svm_push_pvt_heap (root_rp);
-
- virtual_base = root_rp->virtual_base;
- virtual_size = root_rp->virtual_size;
-
- for (i = 0; i < vec_len (root_rp->client_pids); i++)
- {
- if (root_rp->client_pids[i] == mypid)
- {
- vec_delete (root_rp->client_pids, 1, i);
- goto found;
- }
- }
- clib_warning ("pid %d AWOL", mypid);
-
-found:
-
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
-
- root_rp = 0;
- munmap ((void *) virtual_base, virtual_size);
-}
-
-void
-svm_client_scan_this_region_nolock (svm_region_t * rp)
-{
- int j;
- int mypid = getpid ();
- void *oldheap;
-
- for (j = 0; j < vec_len (rp->client_pids); j++)
- {
- if (mypid == rp->client_pids[j])
- continue;
- if (rp->client_pids[j] && (kill (rp->client_pids[j], 0) < 0))
- {
- clib_warning ("%s: cleanup ghost pid %d",
- rp->region_name, rp->client_pids[j]);
- /* nb: client vec in rp->region_heap */
- oldheap = svm_push_pvt_heap (rp);
- vec_delete (rp->client_pids, 1, j);
- j--;
- svm_pop_heap (oldheap);
- }
- }
-}
-
-
-/*
- * Scan svm regions for dead clients
- */
-void
-svm_client_scan (char *root_path)
-{
- int i, j;
- svm_main_region_t *mp;
- svm_map_region_args_t *a = 0;
- svm_region_t *root_rp;
- svm_region_t *rp;
- svm_subregion_t *subp;
- u8 *name = 0;
- u8 **svm_names = 0;
- void *oldheap;
- int mypid = getpid ();
-
- vec_validate (a, 0);
-
- svm_region_init_chroot (root_path);
-
- root_rp = svm_get_root_rp ();
-
- pthread_mutex_lock (&root_rp->mutex);
-
- mp = root_rp->data_base;
-
- for (j = 0; j < vec_len (root_rp->client_pids); j++)
- {
- if (mypid == root_rp->client_pids[j])
- continue;
- if (root_rp->client_pids[j] && (kill (root_rp->client_pids[j], 0) < 0))
- {
- clib_warning ("%s: cleanup ghost pid %d",
- root_rp->region_name, root_rp->client_pids[j]);
- /* nb: client vec in root_rp->region_heap */
- oldheap = svm_push_pvt_heap (root_rp);
- vec_delete (root_rp->client_pids, 1, j);
- j--;
- svm_pop_heap (oldheap);
- }
- }
-
- /*
- * Snapshoot names, can't hold root rp mutex across
- * find_or_create.
- */
- /* *INDENT-OFF* */
- pool_foreach (subp, mp->subregions, ({
- name = vec_dup (subp->subregion_name);
- vec_add1(svm_names, name);
- }));
- /* *INDENT-ON* */
-
- pthread_mutex_unlock (&root_rp->mutex);
-
- for (i = 0; i < vec_len (svm_names); i++)
- {
- vec_validate (a, 0);
- a->root_path = root_path;
- a->name = (char *) svm_names[i];
- rp = svm_region_find_or_create (a);
- if (rp)
- {
- pthread_mutex_lock (&rp->mutex);
-
- svm_client_scan_this_region_nolock (rp);
-
- pthread_mutex_unlock (&rp->mutex);
- svm_region_unmap (rp);
- vec_free (svm_names[i]);
- }
- vec_free (a);
- }
- vec_free (svm_names);
-
- svm_region_exit ();
-
- vec_free (a);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svm.h b/svm/svm.h
deleted file mode 100644
index 0b87dbcbc64..00000000000
--- a/svm/svm.h
+++ /dev/null
@@ -1,207 +0,0 @@
-/*
- *------------------------------------------------------------------
- * svm.h - shared VM allocation, mmap(...MAP_FIXED...)
- * brain police
- *
- * Copyright (c) 2009 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#ifndef __included_svm_h__
-#define __included_svm_h__
-
-#include <pthread.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/mem.h>
-
-#define MMAP_PAGESIZE (clib_mem_get_page_size())
-
-#define SVM_VERSION ((1<<16) | 1) /* set to declare region ready. */
-
-#define SVM_FLAGS_MHEAP (1<<0) /* region contains an mheap */
-#define SVM_FLAGS_FILE (1<<1) /* region backed by one or more files */
-#define SVM_FLAGS_NODATA (1<<2) /* region will be further subdivided */
-#define SVM_FLAGS_NEED_DATA_INIT (1<<3)
-
-#define SVM_PVT_MHEAP_SIZE (128<<10) /* region's private mheap (128k) */
-
-typedef struct svm_region_
-{
- volatile uword version;
- pthread_mutex_t mutex;
- pthread_cond_t condvar;
- int mutex_owner_pid; /* in case of trouble */
- int mutex_owner_tag;
- uword flags;
- uword virtual_base; /* base of the region object */
- uword virtual_size;
- void *region_heap;
- void *data_base; /* data portion base address */
- void *data_heap; /* data heap, if any */
- volatile void *user_ctx; /* user context pointer */
- /* stuff allocated in the region's heap */
- uword bitmap_size; /* nbits in virtual alloc bitmap */
- uword *bitmap; /* the bitmap */
- char *region_name;
- char *backing_file;
- char **filenames;
- uword *client_pids;
- /* pad */
-
- /* next page:
- * (64K) clib heap for the region itself
- *
- * data_base -> whatever is in this region
- */
-
-} svm_region_t;
-
-typedef struct svm_map_region_args_
-{
- char *root_path; /* NULL means use the truly global arena */
- char *name;
- u64 baseva;
- u64 size;
- u64 pvt_heap_size;
- uword flags;
- char *backing_file;
- uword backing_mmap_size;
- /* uid, gid to own the svm region(s) */
- int uid;
- int gid;
-} svm_map_region_args_t;
-
-
-/*
- * Memory shared across all router instances. Packet buffers, etc
- * Base should be "out of the way," and size should be big enough to
- * cover everything we plan to put here.
- */
-#define SVM_GLOBAL_REGION_BASEVA 0x30000000
-#define SVM_GLOBAL_REGION_SIZE (64<<20)
-#define SVM_GLOBAL_REGION_NAME "/global_vm"
-
-/*
- * Memory shared across individual router instances.
- */
-#define SVM_OVERLAY_REGION_BASEVA \
- (SVM_GLOBAL_REGION_BASEVA + SVM_GLOBAL_REGION_SIZE)
-#define SVM_OVERLAY_REGION_SIZE (1<<20)
-#define SVM_OVERLAY_REGION_BASENAME "/overlay_vm"
-
-typedef struct
-{
- u8 *subregion_name;
-} svm_subregion_t;
-
-typedef struct
-{
- svm_subregion_t *subregions; /* subregion pool */
- uword *name_hash;
- u8 *root_path;
-} svm_main_region_t;
-
-
-void *svm_region_find_or_create (svm_map_region_args_t * a);
-void svm_region_init (void);
-void svm_region_init_chroot (char *root_path);
-void svm_region_init_chroot_uid_gid (char *root_path, int uid, int gid);
-void svm_region_init_args (svm_map_region_args_t * a);
-void svm_region_exit (void);
-void svm_region_unmap (void *rp_arg);
-void svm_client_scan (char *root_path);
-void svm_client_scan_this_region_nolock (svm_region_t * rp);
-u8 *shm_name_from_svm_map_region_args (svm_map_region_args_t * a);
-
-static inline void *
-svm_mem_alloc (svm_region_t * rp, uword size)
-{
- u8 *oldheap;
- ASSERT (rp->flags & SVM_FLAGS_MHEAP);
- u8 *rv;
-
- pthread_mutex_lock (&rp->mutex);
- oldheap = clib_mem_set_heap (rp->data_heap);
- rv = clib_mem_alloc (size);
- clib_mem_set_heap (oldheap);
- pthread_mutex_unlock (&rp->mutex);
- return (rv);
-}
-
-static inline void *
-svm_mem_alloc_aligned_at_offset (svm_region_t * rp,
- uword size, uword align, uword offset)
-{
- u8 *oldheap;
- ASSERT (rp->flags & SVM_FLAGS_MHEAP);
- u8 *rv;
-
- pthread_mutex_lock (&rp->mutex);
- oldheap = clib_mem_set_heap (rp->data_heap);
- rv = clib_mem_alloc_aligned_at_offset (size, align, offset,
- 1 /* yes, call os_out_of_memory */ );
- clib_mem_set_heap (oldheap);
- pthread_mutex_unlock (&rp->mutex);
- return (rv);
-}
-
-static inline void
-svm_mem_free (svm_region_t * rp, void *ptr)
-{
- u8 *oldheap;
- ASSERT (rp->flags & SVM_FLAGS_MHEAP);
-
- pthread_mutex_lock (&rp->mutex);
- oldheap = clib_mem_set_heap (rp->data_heap);
- clib_mem_free (ptr);
- clib_mem_set_heap (oldheap);
- pthread_mutex_unlock (&rp->mutex);
-
-}
-
-static inline void *
-svm_push_pvt_heap (svm_region_t * rp)
-{
- u8 *oldheap;
- oldheap = clib_mem_set_heap (rp->region_heap);
- return ((void *) oldheap);
-}
-
-static inline void *
-svm_push_data_heap (svm_region_t * rp)
-{
- u8 *oldheap;
- oldheap = clib_mem_set_heap (rp->data_heap);
- return ((void *) oldheap);
-}
-
-static inline void
-svm_pop_heap (void *oldheap)
-{
- clib_mem_set_heap (oldheap);
-}
-
-u8 *format_svm_region (u8 * s, va_list * args);
-
-svm_region_t *svm_get_root_rp (void);
-
-#endif /* __included_svm_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svm_test.c b/svm/svm_test.c
deleted file mode 100644
index ab0b9e248e6..00000000000
--- a/svm/svm_test.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-/*
- *------------------------------------------------------------------
- * svm_test.c -- brain police
- *------------------------------------------------------------------
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-
-#include "svm.h"
-
-
-int
-main (int argc, char **argv)
-{
- svm_region_t *root_rp, *rp;
- svm_map_region_args_t *a = 0;
-
- vec_validate (a, 0);
-
- root_rp = svm_region_init ();
-
- ASSERT (root_rp);
-
- a->name = "/qvnet";
- a->size = (4 << 10);
-
- rp = svm_region_find_or_create (root_rp, a);
-
- ASSERT (rp);
-
- *((u32 *) rp->data_base) = 0xdeadbeef;
- svm_region_unmap (root_rp, rp);
-
- fformat (stdout, "exiting...\n");
-
- exit (0);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svmdb.c b/svm/svmdb.c
deleted file mode 100644
index 03dfe7c33d3..00000000000
--- a/svm/svmdb.c
+++ /dev/null
@@ -1,671 +0,0 @@
-/*
- *------------------------------------------------------------------
- * svmdb.c -- simple shared memory database
- *
- * Copyright (c) 2009 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-#include <vppinfra/serialize.h>
-
-#include "svmdb.h"
-
-static void local_set_variable_nolock (svmdb_client_t * client,
- svmdb_namespace_t namespace,
- u8 * var, u8 * val, u32 elsize);
-
-always_inline void
-region_lock (svm_region_t * rp, int tag)
-{
- pthread_mutex_lock (&rp->mutex);
-#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = getpid ();
- rp->mutex_owner_tag = tag;
-#endif
-}
-
-always_inline void
-region_unlock (svm_region_t * rp)
-{
-#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = 0;
- rp->mutex_owner_tag = 0;
-#endif
- pthread_mutex_unlock (&rp->mutex);
-}
-
-svmdb_client_t *
-svmdb_map (svmdb_map_args_t * dba)
-{
- svmdb_client_t *client = 0;
- svm_map_region_args_t *a = 0;
- svm_region_t *db_rp;
- void *oldheap;
- svmdb_shm_hdr_t *hp = 0;
-
- vec_validate (client, 0);
- vec_validate (a, 0);
-
- svm_region_init_chroot_uid_gid (dba->root_path, dba->uid, dba->gid);
-
- a->root_path = dba->root_path;
- a->name = "/db";
- a->size = dba->size ? dba->size : SVMDB_DEFAULT_SIZE;
- a->flags = SVM_FLAGS_MHEAP;
- a->uid = dba->uid;
- a->gid = dba->gid;
-
- db_rp = client->db_rp = svm_region_find_or_create (a);
-
- ASSERT (db_rp);
-
- vec_free (a);
-
- region_lock (client->db_rp, 10);
- /* Has someone else set up the shared-memory variable table? */
- if (db_rp->user_ctx)
- {
- client->shm = (void *) db_rp->user_ctx;
- client->pid = getpid ();
- region_unlock (client->db_rp);
- ASSERT (client->shm->version == SVMDB_SHM_VERSION);
- return (client);
- }
- /* Nope, it's our problem... */
-
- /* Add a bogus client (pid=0) so the svm won't be deallocated */
- oldheap = svm_push_pvt_heap (db_rp);
- vec_add1 (client->db_rp->client_pids, 0);
- svm_pop_heap (oldheap);
-
- oldheap = svm_push_data_heap (db_rp);
-
- vec_validate (hp, 0);
- hp->version = SVMDB_SHM_VERSION;
- hp->namespaces[SVMDB_NAMESPACE_STRING]
- = hash_create_string (0, sizeof (uword));
- hp->namespaces[SVMDB_NAMESPACE_VEC]
- = hash_create_string (0, sizeof (uword));
-
- db_rp->user_ctx = hp;
- client->shm = hp;
-
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
- client->pid = getpid ();
-
- return (client);
-}
-
-void
-svmdb_unmap (svmdb_client_t * client)
-{
- ASSERT (client);
-
- if (!svm_get_root_rp ())
- return;
-
- svm_region_unmap ((void *) client->db_rp);
- svm_region_exit ();
- vec_free (client);
-}
-
-static void
-notify_value (svmdb_value_t * v, svmdb_action_t a)
-{
- int i;
- int rv;
- union sigval sv;
- u32 value;
- u32 *dead_registrations = 0;
-
- svmdb_notify_t *np;
-
- for (i = 0; i < vec_len (v->notifications); i++)
- {
- np = vec_elt_at_index (v->notifications, i);
- if (np->action == a)
- {
- value = (np->action << 28) | (np->opaque);
- sv.sival_ptr = (void *) (uword) value;
- do
- {
- rv = 0;
- if (sigqueue (np->pid, np->signum, sv) == 0)
- break;
- rv = errno;
- }
- while (rv == EAGAIN);
- if (rv == 0)
- continue;
- vec_add1 (dead_registrations, i);
- }
- }
-
- for (i = 0; i < vec_len (dead_registrations); i++)
- {
- np = vec_elt_at_index (v->notifications, dead_registrations[i]);
- clib_warning ("dead reg pid %d sig %d action %d opaque %x",
- np->pid, np->signum, np->action, np->opaque);
- vec_delete (v->notifications, 1, dead_registrations[i]);
- }
- vec_free (dead_registrations);
-}
-
-int
-svmdb_local_add_del_notification (svmdb_client_t * client,
- svmdb_notification_args_t * a)
-{
- uword *h;
- void *oldheap;
- hash_pair_t *hp;
- svmdb_shm_hdr_t *shm;
- u8 *dummy_value = 0;
- svmdb_value_t *value;
- svmdb_notify_t *np;
- int i;
- int rv = 0;
-
- ASSERT (a->elsize);
-
- region_lock (client->db_rp, 18);
- shm = client->shm;
- oldheap = svm_push_data_heap (client->db_rp);
-
- h = shm->namespaces[a->nspace];
-
- hp = hash_get_pair_mem (h, a->var);
- if (hp == 0)
- {
- local_set_variable_nolock (client, a->nspace, (u8 *) a->var,
- dummy_value, a->elsize);
- /* might have moved */
- h = shm->namespaces[a->nspace];
- hp = hash_get_pair_mem (h, a->var);
- ASSERT (hp);
- }
-
- value = pool_elt_at_index (shm->values, hp->value[0]);
-
- for (i = 0; i < vec_len (value->notifications); i++)
- {
- np = vec_elt_at_index (value->notifications, i);
- if ((np->pid == client->pid)
- && (np->signum == a->signum)
- && (np->action == a->action) && (np->opaque == a->opaque))
- {
- if (a->add_del == 0 /* delete */ )
- {
- vec_delete (value->notifications, 1, i);
- goto out;
- }
- else
- { /* add */
- clib_warning
- ("%s: ignore dup reg pid %d signum %d action %d opaque %x",
- a->var, client->pid, a->signum, a->action, a->opaque);
- rv = -2;
- goto out;
- }
- }
- }
- if (a->add_del == 0)
- {
- rv = -3;
- goto out;
- }
-
- vec_add2 (value->notifications, np, 1);
- np->pid = client->pid;
- np->signum = a->signum;
- np->action = a->action;
- np->opaque = a->opaque;
-
-out:
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
- return rv;
-}
-
-
-static void
-local_unset_variable_nolock (svmdb_client_t * client,
- svmdb_namespace_t namespace, char *var)
-{
- uword *h;
- svmdb_value_t *oldvalue;
- hash_pair_t *hp;
-
- h = client->shm->namespaces[namespace];
- hp = hash_get_pair_mem (h, var);
- if (hp)
- {
- oldvalue = pool_elt_at_index (client->shm->values, hp->value[0]);
- if (vec_len (oldvalue->notifications))
- notify_value (oldvalue, SVMDB_ACTION_UNSET);
- /* zero length value means unset */
- _vec_len (oldvalue->value) = 0;
- }
- client->shm->namespaces[namespace] = h;
-}
-
-void
-svmdb_local_unset_string_variable (svmdb_client_t * client, char *var)
-{
- void *oldheap;
-
- region_lock (client->db_rp, 11);
- oldheap = svm_push_data_heap (client->db_rp);
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_STRING, var);
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
-}
-
-static void
-local_set_variable_nolock (svmdb_client_t * client,
- svmdb_namespace_t namespace,
- u8 * var, u8 * val, u32 elsize)
-{
- uword *h;
- hash_pair_t *hp;
- u8 *name;
- svmdb_shm_hdr_t *shm;
-
- shm = client->shm;
- h = shm->namespaces[namespace];
- hp = hash_get_pair_mem (h, var);
- if (hp)
- {
- svmdb_value_t *oldvalue;
- oldvalue = pool_elt_at_index (client->shm->values, hp->value[0]);
- vec_alloc (oldvalue->value, vec_len (val) * elsize);
- clib_memcpy (oldvalue->value, val, vec_len (val) * elsize);
- _vec_len (oldvalue->value) = vec_len (val);
- notify_value (oldvalue, SVMDB_ACTION_SET);
- }
- else
- {
- svmdb_value_t *newvalue;
- pool_get (shm->values, newvalue);
- memset (newvalue, 0, sizeof (*newvalue));
- newvalue->elsize = elsize;
- vec_alloc (newvalue->value, vec_len (val) * elsize);
- clib_memcpy (newvalue->value, val, vec_len (val) * elsize);
- _vec_len (newvalue->value) = vec_len (val);
- name = format (0, "%s%c", var, 0);
- hash_set_mem (h, name, newvalue - shm->values);
- }
- shm->namespaces[namespace] = h;
-}
-
-void
-svmdb_local_set_string_variable (svmdb_client_t * client,
- char *var, char *val)
-{
- void *oldheap;
-
- region_lock (client->db_rp, 12);
- oldheap = svm_push_data_heap (client->db_rp);
-
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_STRING, var);
-
- local_set_variable_nolock (client, SVMDB_NAMESPACE_STRING,
- (u8 *) var, (u8 *) val, 1 /* elsize */ );
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
-}
-
-static u8 *
-local_get_variable_nolock (svmdb_client_t * client,
- svmdb_namespace_t namespace, u8 * var)
-{
- uword *h;
- uword *p;
- svmdb_shm_hdr_t *shm;
- svmdb_value_t *oldvalue;
-
- shm = client->shm;
- h = shm->namespaces[namespace];
- p = hash_get_mem (h, var);
- if (p)
- {
- oldvalue = pool_elt_at_index (shm->values, p[0]);
- notify_value (oldvalue, SVMDB_ACTION_GET);
- return (oldvalue->value);
- }
- return 0;
-}
-
-void *
-svmdb_local_get_variable_reference (svmdb_client_t * client,
- svmdb_namespace_t namespace, char *var)
-{
- u8 *rv;
-
- region_lock (client->db_rp, 19);
- rv = local_get_variable_nolock (client, namespace, (u8 *) var);
- region_unlock (client->db_rp);
- return (void *) rv;
-}
-
-char *
-svmdb_local_get_string_variable (svmdb_client_t * client, char *var)
-{
- u8 *rv = 0;
-
- region_lock (client->db_rp, 13);
- rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_STRING, (u8 *) var);
-
- if (rv && vec_len (rv))
- {
- rv = format (0, "%s", rv);
- vec_add1 (rv, 0);
- }
- region_unlock (client->db_rp);
- return ((char *) rv);
-}
-
-void
-svmdb_local_dump_strings (svmdb_client_t * client)
-{
- uword *h;
- u8 *key;
- u32 value;
- svmdb_shm_hdr_t *shm = client->shm;
-
- region_lock (client->db_rp, 14);
-
- h = client->shm->namespaces[SVMDB_NAMESPACE_STRING];
-
- /* *INDENT-OFF* */
- hash_foreach_mem(key, value, h,
- ({
- svmdb_value_t *v = pool_elt_at_index (shm->values, value);
-
- fformat(stdout, "%s: %s\n", key,
- vec_len(v->value) ? v->value : (u8 *)"(nil)");
- }));
- /* *INDENT-ON* */
- region_unlock (client->db_rp);
-}
-
-int
-svmdb_local_serialize_strings (svmdb_client_t * client, char *filename)
-{
- uword *h;
- u8 *key;
- u32 value;
- svmdb_shm_hdr_t *shm = client->shm;
- serialize_main_t _sm, *sm = &_sm;
- clib_error_t *error = 0;
- u8 *sanitized_name = 0;
- int fd = 0;
-
- if (strstr (filename, "..") || index (filename, '/'))
- {
- error = clib_error_return (0, "Illegal characters in filename '%s'",
- filename);
- goto out;
- }
-
- sanitized_name = format (0, "/tmp/%s%c", filename, 0);
-
- fd = creat ((char *) sanitized_name, 0644);
-
- if (fd < 0)
- {
- error = clib_error_return_unix (0, "Create '%s'", sanitized_name);
- goto out;
- }
-
- serialize_open_unix_file_descriptor (sm, fd);
-
- region_lock (client->db_rp, 20);
-
- h = client->shm->namespaces[SVMDB_NAMESPACE_STRING];
-
- serialize_likely_small_unsigned_integer (sm, hash_elts (h));
-
- /* *INDENT-OFF* */
- hash_foreach_mem(key, value, h,
- ({
- svmdb_value_t *v = pool_elt_at_index (shm->values, value);
-
- /* Omit names with nil values */
- if (vec_len(v->value))
- {
- serialize_cstring (sm, (char *)key);
- serialize_cstring (sm, (char *)v->value);
- }
- }));
- /* *INDENT-ON* */
- region_unlock (client->db_rp);
-
- serialize_close (sm);
-
-out:
- if (fd > 0 && close (fd) < 0)
- error = clib_error_return_unix (0, "close fd %d", fd);
-
- if (error)
- {
- clib_error_report (error);
- return -1;
- }
- return 0;
-}
-
-int
-svmdb_local_unserialize_strings (svmdb_client_t * client, char *filename)
-{
- serialize_main_t _sm, *sm = &_sm;
- void *oldheap;
- clib_error_t *error = 0;
- u8 *key, *value;
- int fd = 0;
- u32 nelts;
- int i;
-
- fd = open (filename, O_RDONLY);
-
- if (fd < 0)
- {
- error = clib_error_return_unix (0, "Failed to open '%s'", filename);
- goto out;
- }
-
- unserialize_open_unix_file_descriptor (sm, fd);
-
- region_lock (client->db_rp, 21);
- oldheap = svm_push_data_heap (client->db_rp);
-
- nelts = unserialize_likely_small_unsigned_integer (sm);
-
- for (i = 0; i < nelts; i++)
- {
- unserialize_cstring (sm, (char **) &key);
- unserialize_cstring (sm, (char **) &value);
- local_set_variable_nolock (client, SVMDB_NAMESPACE_STRING,
- key, value, 1 /* elsize */ );
- vec_free (key);
- vec_free (value);
- }
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
-
- serialize_close (sm);
-
-out:
- if (fd > 0 && close (fd) < 0)
- error = clib_error_return_unix (0, "close fd %d", fd);
-
- if (error)
- {
- clib_error_report (error);
- return -1;
- }
- return 0;
-}
-
-void
-svmdb_local_unset_vec_variable (svmdb_client_t * client, char *var)
-{
- void *oldheap;
-
- region_lock (client->db_rp, 15);
- oldheap = svm_push_data_heap (client->db_rp);
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_VEC, var);
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
-}
-
-void
-svmdb_local_set_vec_variable (svmdb_client_t * client,
- char *var, void *val_arg, u32 elsize)
-{
- u8 *val = (u8 *) val_arg;
- void *oldheap;
-
- region_lock (client->db_rp, 16);
- oldheap = svm_push_data_heap (client->db_rp);
-
- local_unset_variable_nolock (client, SVMDB_NAMESPACE_VEC, var);
- local_set_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var,
- val, elsize);
-
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
-}
-
-void *
-svmdb_local_get_vec_variable (svmdb_client_t * client, char *var, u32 elsize)
-{
- u8 *rv = 0;
- u8 *copy = 0;
-
- region_lock (client->db_rp, 17);
-
- rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var);
-
- if (rv && vec_len (rv))
- {
- /* Make a copy in process-local memory */
- vec_alloc (copy, vec_len (rv) * elsize);
- clib_memcpy (copy, rv, vec_len (rv) * elsize);
- _vec_len (copy) = vec_len (rv);
- region_unlock (client->db_rp);
- return (copy);
- }
- region_unlock (client->db_rp);
- return (0);
-}
-
-void
-svmdb_local_dump_vecs (svmdb_client_t * client)
-{
- uword *h;
- u8 *key;
- u32 value;
- svmdb_shm_hdr_t *shm;
-
- region_lock (client->db_rp, 17);
- shm = client->shm;
-
- h = client->shm->namespaces[SVMDB_NAMESPACE_VEC];
-
- /* *INDENT-OFF* */
- hash_foreach_mem(key, value, h,
- ({
- svmdb_value_t *v = pool_elt_at_index (shm->values, value);
- (void) fformat(stdout, "%s:\n %U (%.2f)\n", key,
- format_hex_bytes, v->value,
- vec_len(v->value)*v->elsize, ((f64 *)(v->value))[0]);
- }));
- /* *INDENT-ON* */
-
- region_unlock (client->db_rp);
-}
-
-void *
-svmdb_local_find_or_add_vec_variable (svmdb_client_t * client,
- char *var, u32 nbytes)
-{
- void *oldheap;
- u8 *rv = 0;
-
- region_lock (client->db_rp, 18);
- oldheap = svm_push_data_heap (client->db_rp);
-
- rv = local_get_variable_nolock (client, SVMDB_NAMESPACE_VEC, (u8 *) var);
-
- if (rv)
- {
- goto out;
- }
- else
- {
- uword *h;
- u8 *name;
- svmdb_shm_hdr_t *shm;
- svmdb_value_t *newvalue;
-
- shm = client->shm;
- h = shm->namespaces[SVMDB_NAMESPACE_VEC];
-
- pool_get (shm->values, newvalue);
- memset (newvalue, 0, sizeof (*newvalue));
- newvalue->elsize = 1;
- vec_alloc (newvalue->value, nbytes);
- _vec_len (newvalue->value) = nbytes;
- name = format (0, "%s%c", var, 0);
- hash_set_mem (h, name, newvalue - shm->values);
- shm->namespaces[SVMDB_NAMESPACE_VEC] = h;
- rv = newvalue->value;
- }
-
-out:
- svm_pop_heap (oldheap);
- region_unlock (client->db_rp);
- return (rv);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svmdb.h b/svm/svmdb.h
deleted file mode 100644
index e02628a0bb9..00000000000
--- a/svm/svmdb.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- *------------------------------------------------------------------
- * svmdb.h - shared VM database
- *
- * Copyright (c) 2009 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#ifndef __included_svmdb_h__
-#define __included_svmdb_h__
-
-#include "svm.h"
-
-typedef enum
-{
- SVMDB_ACTION_ILLEGAL = 0,
- SVMDB_ACTION_GET, /* not clear why anyone would care */
- SVMDB_ACTION_SET,
- SVMDB_ACTION_UNSET,
-} svmdb_action_t;
-
-typedef struct
-{
- int pid;
- int signum;
- u32 action:4;
- u32 opaque:28;
-} svmdb_notify_t;
-
-typedef struct
-{
- u8 *value;
- svmdb_notify_t *notifications;
- u32 elsize;
-} svmdb_value_t;
-
-typedef enum
-{
- SVMDB_NAMESPACE_STRING = 0,
- SVMDB_NAMESPACE_VEC,
- SVMDB_N_NAMESPACES,
-} svmdb_namespace_t;
-
-typedef struct
-{
- uword version;
- /* pool of values */
- svmdb_value_t *values;
- uword *namespaces[SVMDB_N_NAMESPACES];
-} svmdb_shm_hdr_t;
-
-#define SVMDB_SHM_VERSION 2
-
-typedef struct
-{
- int flags;
- int pid;
- svm_region_t *db_rp;
- svmdb_shm_hdr_t *shm;
-} svmdb_client_t;
-
-typedef struct
-{
- int add_del;
- svmdb_namespace_t nspace;
- char *var;
- u32 elsize;
- int signum;
- u32 action:4;
- u32 opaque:28;
-} svmdb_notification_args_t;
-
-typedef struct
-{
- char *root_path;
- uword size;
- u32 uid;
- u32 gid;
-} svmdb_map_args_t;
-
-/*
- * Must be a reasonable number, several mb smaller than
- * SVM_GLOBAL_REGION_SIZE, or no donut for you...
- */
-#define SVMDB_DEFAULT_SIZE (4<<20)
-
-svmdb_client_t *svmdb_map (svmdb_map_args_t *);
-
-void svmdb_unmap (svmdb_client_t * client);
-void svmdb_local_unset_string_variable (svmdb_client_t * client, char *var);
-void svmdb_local_set_string_variable (svmdb_client_t * client,
- char *var, char *val);
-char *svmdb_local_get_string_variable (svmdb_client_t * client, char *var);
-void *svmdb_local_get_variable_reference (svmdb_client_t * client,
- svmdb_namespace_t ns, char *var);
-
-void svmdb_local_dump_strings (svmdb_client_t * client);
-
-void svmdb_local_unset_vec_variable (svmdb_client_t * client, char *var);
-void svmdb_local_set_vec_variable (svmdb_client_t * client,
- char *var, void *val, u32 elsize);
-void *svmdb_local_get_vec_variable (svmdb_client_t * client, char *var,
- u32 elsize);
-void svmdb_local_dump_vecs (svmdb_client_t * client);
-
-int svmdb_local_add_del_notification (svmdb_client_t * client,
- svmdb_notification_args_t * args);
-
-void *svmdb_local_find_or_add_vec_variable (svmdb_client_t * client,
- char *var, u32 nbytes);
-
-int svmdb_local_serialize_strings (svmdb_client_t * client, char *filename);
-int svmdb_local_unserialize_strings (svmdb_client_t * client, char *filename);
-
-
-#endif /* __included_svmdb_h__ */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svmdbtool.c b/svm/svmdbtool.c
deleted file mode 100644
index a0af15fcbbf..00000000000
--- a/svm/svmdbtool.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
- * Copyright (c) 2015 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <pwd.h>
-#include <grp.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-#include <vppinfra/serialize.h>
-#include "svmdb.h"
-
-typedef struct
-{
- svmdb_map_args_t map_args;
- int uid, gid;
- uword size;
-} svmdbtool_main_t;
-
-svmdbtool_main_t svmdbtool_main;
-
-static inline svmdb_map_args_t *
-map_arg_setup (char *chroot_path)
-{
- svmdbtool_main_t *sm = &svmdbtool_main;
- svmdb_map_args_t *ma = &sm->map_args;
-
- memset (ma, 0, sizeof (*ma));
- ma->root_path = chroot_path;
- ma->size = sm->size;
- ma->uid = sm->uid;
- ma->gid = sm->gid;
- return ma;
-}
-
-static void
-get_string (char *chroot_path, u8 * vbl)
-{
- svmdb_client_t *c;
- char *rv;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- rv = svmdb_local_get_string_variable (c, (char *) vbl);
-
- fformat (stdout, "%s\n", rv ? rv : "UNSET");
- vec_free (rv);
- svmdb_unmap (c);
-}
-
-static void
-set_string (char *chroot_path, u8 * vbl, u8 * value)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
- svmdb_local_set_string_variable (c, (char *) vbl, (char *) value);
- svmdb_unmap (c);
-}
-
-static void
-unset_string (char *chroot_path, u8 * vbl)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
- svmdb_local_unset_string_variable (c, (char *) vbl);
- svmdb_unmap (c);
-}
-
-static void
-dump_strings (char *chroot_path)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
- svmdb_local_dump_strings (c);
- svmdb_unmap (c);
-}
-
-static void
-serialize_strings (char *chroot_path, char *filename)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
- (void) svmdb_local_serialize_strings (c, filename);
- svmdb_unmap (c);
-}
-
-static void
-unserialize_strings (char *chroot_path, char *filename)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
- (void) svmdb_local_unserialize_strings (c, filename);
- svmdb_unmap (c);
-}
-
-static void
-test_vlib_vec_rate (char *chroot_path, f64 vr)
-{
- svmdb_client_t *c;
- f64 *tv = 0;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- vec_add1 (tv, vr);
-
- svmdb_local_set_vec_variable (c, "vlib_vector_rate", (char *) tv,
- sizeof (*tv));
- svmdb_unmap (c);
-
- vec_free (tv);
-}
-
-
-
-static void
-test_vec (char *chroot_path, u8 * vbl)
-{
- svmdb_client_t *c;
- u64 *tv = 0;
- int i;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- /* my amp goes to 11 */
- for (i = 0; i < 11; i++)
- {
- vec_add1 (tv, i);
- }
-
- svmdb_local_set_vec_variable (c, (char *) vbl, (char *) tv, sizeof (tv[0]));
- svmdb_unmap (c);
-
- vec_free (tv);
-}
-
-static void
-fake_install (char *chroot_path, u8 * add_value)
-{
- svmdb_client_t *c;
- u8 *v = 0;
- u8 **values = 0;
- u8 *oldvalue;
- u8 *value;
- int nitems = 0, i;
- serialize_main_t m;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- oldvalue = svmdb_local_get_vec_variable (c, "installed_sw", 1);
- if (oldvalue)
- {
- unserialize_open_data (&m, oldvalue, vec_len (oldvalue));
- nitems = unserialize_likely_small_unsigned_integer (&m);
- for (i = 0; i < nitems; i++)
- {
- unserialize_cstring (&m, (char **) &value);
- vec_add1 (values, value);
- }
- vec_free (v);
- }
- nitems++;
- value = format (0, "%s%c", add_value, 0);
-
- vec_add1 (values, value);
-
- fformat (stdout, "Resulting installed_sw vector:\n");
-
- serialize_open_vector (&m, v);
- serialize_likely_small_unsigned_integer (&m, vec_len (values));
- for (i = 0; i < vec_len (values); i++)
- {
- fformat (stdout, "%s\n", values[i]);
- serialize_cstring (&m, (char *) values[i]);
- }
-
- v = serialize_close_vector (&m);
-
- svmdb_local_set_vec_variable (c, "installed_sw", v, sizeof (v[0]));
- svmdb_unmap (c);
-
- for (i = 0; i < vec_len (values); i++)
- vec_free (values[i]);
- vec_free (values);
-}
-
-static void
-sigaction_handler (int signum, siginfo_t * i, void *notused)
-{
- u32 action, opaque;
-
- action = (u32) (uword) i->si_ptr;
- action >>= 28;
- opaque = (u32) (uword) i->si_ptr;
- opaque &= ~(0xF0000000);
-
- clib_warning ("signal %d, action %d, opaque %x", signum, action, opaque);
-}
-
-static void
-test_reg (char *chroot_path, u8 * vbl)
-{
- svmdb_client_t *c;
- svmdb_notification_args_t args;
- svmdb_notification_args_t *a = &args;
- struct sigaction sa;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- memset (&sa, 0, sizeof (sa));
- sa.sa_sigaction = sigaction_handler;
- sa.sa_flags = SA_SIGINFO;
- if (sigaction (SIGUSR2, &sa, 0) < 0)
- {
- clib_unix_warning ("sigaction");
- return;
- }
-
- memset (a, 0, sizeof (*a));
-
- c = svmdb_map (ma);
-
- a->add_del = 1 /* add */ ;
- a->nspace = SVMDB_NAMESPACE_STRING;
- a->var = (char *) vbl;
- a->elsize = 1;
- a->signum = SIGUSR2;
- a->action = SVMDB_ACTION_GET;
- a->opaque = 0x0eadbeef;
-
- svmdb_local_add_del_notification (c, a);
-
- (void) svmdb_local_get_string_variable (c, (char *) vbl);
-
- a->add_del = 0; /* del */
- svmdb_local_add_del_notification (c, a);
-
-
-
- svmdb_unmap (c);
-}
-
-static void
-unset_vec (char *chroot_path, u8 * vbl)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- svmdb_local_unset_vec_variable (c, (char *) vbl);
- svmdb_unmap (c);
-}
-
-static void
-dump_vecs (char *chroot_path)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- svmdb_local_dump_vecs (c);
- svmdb_unmap (c);
-}
-
-static void
-crash_test (char *chroot_path)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- clib_warning ("Grab region mutex and crash deliberately!");
- c->db_rp->mutex_owner_pid = getpid ();
- c->db_rp->mutex_owner_tag = -13;
- pthread_mutex_lock (&c->db_rp->mutex);
-
- abort ();
-}
-
-static void
-map_with_size (char *chroot_path, uword size)
-{
- svmdb_client_t *c;
- svmdb_map_args_t *ma;
-
- svmdbtool_main.size = size;
- ma = map_arg_setup (chroot_path);
-
- c = svmdb_map (ma);
-
- svmdb_unmap (c);
-}
-
-int
-main (int argc, char **argv)
-{
- unformat_input_t input;
- int parsed = 0;
- u8 *vbl = 0, *value = 0;
- char *chroot_path = 0;
- u8 *chroot_path_u8;
- u8 *filename;
- uword size;
- f64 vr;
- int uid, gid, rv;
- struct passwd _pw, *pw;
- struct group _grp, *grp;
- char *s, buf[128];
-
- svmdbtool_main.uid = geteuid ();
- svmdbtool_main.gid = getegid ();
-
- unformat_init_command_line (&input, argv);
-
- while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (&input, "get-string %s", &vbl))
- {
- get_string (chroot_path, vbl);
- vec_free (vbl);
- parsed++;
- }
- else if (unformat (&input, "set-string %s %s", &vbl, &value))
- {
- set_string (chroot_path, vbl, value);
- vec_free (vbl);
- vec_free (value);
- parsed++;
- }
- else if (unformat (&input, "unset-string %s", &vbl))
- {
- unset_string (chroot_path, vbl);
- vec_free (vbl);
- parsed++;
- }
- else if (unformat (&input, "dump-strings"))
- {
- dump_strings (chroot_path);
- parsed++;
- }
- else if (unformat (&input, "unset-vec %s", &vbl))
- {
- unset_vec (chroot_path, vbl);
- vec_free (vbl);
- parsed++;
- }
- else if (unformat (&input, "dump-vecs"))
- {
- dump_vecs (chroot_path);
- parsed++;
- }
- else if (unformat (&input, "test-vec %s", &vbl))
- {
- test_vec (chroot_path, vbl);
- // vec_free(vbl);
- parsed++;
- }
- else if (unformat (&input, "vlib-vec-rate %f", &vr))
- {
- test_vlib_vec_rate (chroot_path, vr);
- parsed++;
- }
- else if (unformat (&input, "test-reg %s", &vbl))
- {
- test_reg (chroot_path, vbl);
- parsed++;
- }
- else if (unformat (&input, "crash-test"))
- {
- crash_test (chroot_path);
- }
- else if (unformat (&input, "chroot %s", &chroot_path_u8))
- {
- chroot_path = (char *) chroot_path_u8;
- }
- else if (unformat (&input, "fake-install %s", &value))
- {
- fake_install (chroot_path, value);
- parsed++;
- }
- else if (unformat (&input, "size %d", &size))
- {
- map_with_size (chroot_path, size);
- parsed++;
- }
- else if (unformat (&input, "uid %d", &uid))
- svmdbtool_main.uid = uid;
- else if (unformat (&input, "gid %d", &gid))
- svmdbtool_main.gid = gid;
- else if (unformat (&input, "uid %s", &s))
- {
- /* lookup the username */
- pw = NULL;
- rv = getpwnam_r (s, &_pw, buf, sizeof (buf), &pw);
- if (rv < 0)
- {
- fformat (stderr, "cannot fetch username %s", s);
- exit (1);
- }
- if (pw == NULL)
- {
- fformat (stderr, "username %s does not exist", s);
- exit (1);
- }
- vec_free (s);
- svmdbtool_main.uid = pw->pw_uid;
- }
- else if (unformat (&input, "gid %s", &s))
- {
- /* lookup the group name */
- grp = NULL;
- rv = getgrnam_r (s, &_grp, buf, sizeof (buf), &grp);
- if (rv != 0)
- {
- fformat (stderr, "cannot fetch group %s", s);
- exit (1);
- }
- if (grp == NULL)
- {
- fformat (stderr, "group %s does not exist", s);
- exit (1);
- }
- vec_free (s);
- svmdbtool_main.gid = grp->gr_gid;
- }
- else if (unformat (&input, "serialize-strings %s", &filename))
- {
- vec_add1 (filename, 0);
- serialize_strings (chroot_path, (char *) filename);
- parsed++;
- }
- else if (unformat (&input, "unserialize-strings %s", &filename))
- {
- vec_add1 (filename, 0);
- unserialize_strings (chroot_path, (char *) filename);
- parsed++;
- }
- else
- {
- break;
- }
- }
-
- unformat_free (&input);
-
- if (!parsed)
- {
- fformat (stdout, "%s: get-string <name> | set-string <name> <value>\n",
- argv[0]);
- fformat (stdout, " unset-string <name> | dump-strings\n");
- fformat (stdout, " test-vec <name> |\n");
- fformat (stdout, " unset-vec <name> | dump-vecs\n");
- fformat (stdout, " chroot <prefix> [uid <nnn-or-userid>]\n");
- fformat (stdout, " [gid <nnn-or-group-name>]\n");
- }
-
- exit (0);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
diff --git a/svm/svmtool.c b/svm/svmtool.c
deleted file mode 100644
index b319551425c..00000000000
--- a/svm/svmtool.c
+++ /dev/null
@@ -1,528 +0,0 @@
-/*
- *------------------------------------------------------------------
- * svmtool.c
- *
- * Copyright (c) 2009 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *------------------------------------------------------------------
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <netinet/in.h>
-#include <signal.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <time.h>
-#include <fcntl.h>
-#include <string.h>
-#include <vppinfra/clib.h>
-#include <vppinfra/vec.h>
-#include <vppinfra/hash.h>
-#include <vppinfra/bitmap.h>
-#include <vppinfra/fifo.h>
-#include <vppinfra/time.h>
-#include <vppinfra/mheap.h>
-#include <vppinfra/heap.h>
-#include <vppinfra/pool.h>
-#include <vppinfra/format.h>
-
-#include "svm.h"
-
-
-
-/*
- * format_all_svm_regions
- * Maps / unmaps regions. Do NOT call from client code!
- */
-u8 *
-format_all_svm_regions (u8 * s, va_list * args)
-{
- int verbose = va_arg (*args, int);
- svm_region_t *root_rp = svm_get_root_rp ();
- svm_main_region_t *mp;
- svm_subregion_t *subp;
- svm_region_t *rp;
- svm_map_region_args_t *a = 0;
- u8 **svm_names = 0;
- u8 *name = 0;
- int i;
-
- ASSERT (root_rp);
-
- pthread_mutex_lock (&root_rp->mutex);
-
- s = format (s, "%U", format_svm_region, root_rp, verbose);
-
- mp = root_rp->data_base;
-
- /*
- * Snapshoot names, can't hold root rp mutex across
- * find_or_create.
- */
- /* *INDENT-OFF* */
- pool_foreach (subp, mp->subregions, ({
- name = vec_dup (subp->subregion_name);
- vec_add1(svm_names, name);
- }));
- /* *INDENT-ON* */
-
- pthread_mutex_unlock (&root_rp->mutex);
-
- for (i = 0; i < vec_len (svm_names); i++)
- {
- vec_validate (a, 0);
- a->name = (char *) svm_names[i];
- rp = svm_region_find_or_create (a);
- if (rp)
- {
- pthread_mutex_lock (&rp->mutex);
- s = format (s, "%U", format_svm_region, rp, verbose);
- pthread_mutex_unlock (&rp->mutex);
- svm_region_unmap (rp);
- vec_free (svm_names[i]);
- }
- vec_free (a);
- }
- vec_free (svm_names);
- return (s);
-}
-
-void
-show (char *chroot_path, int verbose)
-{
- svm_map_region_args_t *a = 0;
-
- vec_validate (a, 0);
-
- svm_region_init_chroot (chroot_path);
-
- fformat (stdout, "My pid is %d\n", getpid ());
-
- fformat (stdout, "%U", format_all_svm_regions, verbose);
-
- svm_region_exit ();
-
- vec_free (a);
-}
-
-
-static void *
-svm_map_region_nolock (svm_map_region_args_t * a)
-{
- int svm_fd;
- svm_region_t *rp;
- int deadman = 0;
- u8 *shm_name;
-
- ASSERT ((a->size & ~(MMAP_PAGESIZE - 1)) == a->size);
-
- shm_name = shm_name_from_svm_map_region_args (a);
-
- svm_fd = shm_open ((char *) shm_name, O_RDWR, 0777);
-
- if (svm_fd < 0)
- {
- perror ("svm_region_map(mmap open)");
- return (0);
- }
- vec_free (shm_name);
-
- rp = mmap (0, MMAP_PAGESIZE, PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
-
- if (rp == (svm_region_t *) MAP_FAILED)
- {
- close (svm_fd);
- clib_warning ("mmap");
- return (0);
- }
- /*
- * We lost the footrace to create this region; make sure
- * the winner has crossed the finish line.
- */
- while (rp->version == 0 && deadman++ < 5)
- {
- sleep (1);
- }
-
- /*
- * <bleep>-ed?
- */
- if (rp->version == 0)
- {
- clib_warning ("rp->version %d not %d", rp->version, SVM_VERSION);
- munmap (rp, MMAP_PAGESIZE);
- return (0);
- }
- /* Remap now that the region has been placed */
- a->baseva = rp->virtual_base;
- a->size = rp->virtual_size;
- munmap (rp, MMAP_PAGESIZE);
-
- rp = (void *) mmap ((void *) a->baseva, a->size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, svm_fd, 0);
- if ((uword) rp == (uword) MAP_FAILED)
- {
- clib_unix_warning ("mmap");
- return (0);
- }
-
- if ((uword) rp != rp->virtual_base)
- {
- clib_warning ("mmap botch");
- }
-
- if (pthread_mutex_trylock (&rp->mutex))
- {
- clib_warning ("rp->mutex LOCKED by pid %d, tag %d, cleared...",
- rp->mutex_owner_pid, rp->mutex_owner_tag);
- memset (&rp->mutex, 0, sizeof (rp->mutex));
-
- }
- else
- {
- clib_warning ("mutex OK...\n");
- pthread_mutex_unlock (&rp->mutex);
- }
-
- return ((void *) rp);
-}
-
-/*
- * rnd_pagesize
- * Round to a pagesize multiple, presumably 4k works
- */
-static u64
-rnd_pagesize (u64 size)
-{
- u64 rv;
-
- rv = (size + (MMAP_PAGESIZE - 1)) & ~(MMAP_PAGESIZE - 1);
- return (rv);
-}
-
-#define MUTEX_DEBUG
-
-always_inline void
-region_lock (svm_region_t * rp, int tag)
-{
- pthread_mutex_lock (&rp->mutex);
-#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = getpid ();
- rp->mutex_owner_tag = tag;
-#endif
-}
-
-always_inline void
-region_unlock (svm_region_t * rp)
-{
-#ifdef MUTEX_DEBUG
- rp->mutex_owner_pid = 0;
- rp->mutex_owner_tag = 0;
-#endif
- pthread_mutex_unlock (&rp->mutex);
-}
-
-
-static void *
-svm_existing_region_map_nolock (void *root_arg, svm_map_region_args_t * a)
-{
- svm_region_t *root_rp = root_arg;
- svm_main_region_t *mp;
- svm_region_t *rp;
- void *oldheap;
- uword *p;
-
- a->size += MMAP_PAGESIZE +
- (a->pvt_heap_size ? a->pvt_heap_size : SVM_PVT_MHEAP_SIZE);
- a->size = rnd_pagesize (a->size);
-
- region_lock (root_rp, 4);
- oldheap = svm_push_pvt_heap (root_rp);
- mp = root_rp->data_base;
-
- ASSERT (mp);
-
- p = hash_get_mem (mp->name_hash, a->name);
-
- if (p)
- {
- rp = svm_map_region_nolock (a);
- region_unlock (root_rp);
- svm_pop_heap (oldheap);
- return rp;
- }
- return 0;
-
-}
-
-static void
-trace (char *chroot_path, char *name, int enable_disable)
-{
- svm_map_region_args_t *a = 0;
- svm_region_t *db_rp;
- void *oldheap;
-
- vec_validate (a, 0);
-
- svm_region_init_chroot (chroot_path);
-
- a->name = name;
- a->size = 1 << 20;
- a->flags = SVM_FLAGS_MHEAP;
-
- db_rp = svm_region_find_or_create (a);
-
- ASSERT (db_rp);
-
- region_lock (db_rp, 20);
-
- oldheap = svm_push_data_heap (db_rp);
-
- mheap_trace (db_rp->data_heap, enable_disable);
-
- svm_pop_heap (oldheap);
- region_unlock (db_rp);
-
- svm_region_unmap ((void *) db_rp);
- svm_region_exit ();
- vec_free (a);
-}
-
-
-
-static void
-subregion_repair (char *chroot_path)
-{
- int i;
- svm_main_region_t *mp;
- svm_map_region_args_t a;
- svm_region_t *root_rp;
- svm_region_t *rp;
- svm_subregion_t *subp;
- u8 *name = 0;
- u8 **svm_names = 0;
-
- svm_region_init_chroot (chroot_path);
- root_rp = svm_get_root_rp ();
-
- pthread_mutex_lock (&root_rp->mutex);
-
- mp = root_rp->data_base;
-
- /*
- * Snapshoot names, can't hold root rp mutex across
- * find_or_create.
- */
- /* *INDENT-OFF* */
- pool_foreach (subp, mp->subregions, ({
- name = vec_dup (subp->subregion_name);
- vec_add1(svm_names, name);
- }));
- /* *INDENT-ON* */
-
- pthread_mutex_unlock (&root_rp->mutex);
-
- for (i = 0; i < vec_len (svm_names); i++)
- {
- memset (&a, 0, sizeof (a));
- a.root_path = chroot_path;
- a.name = (char *) svm_names[i];
- fformat (stdout, "Checking %s region...\n", a.name);
- rp = svm_existing_region_map_nolock (root_rp, &a);
- if (rp)
- {
- svm_region_unmap (rp);
- vec_free (svm_names[i]);
- }
- }
- vec_free (svm_names);
-}
-
-void
-repair (char *chroot_path, int crash_root_region)
-{
- svm_region_t *root_rp = 0;
- svm_map_region_args_t *a = 0;
- void *svm_map_region (svm_map_region_args_t * a);
- int svm_fd;
- u8 *shm_name;
-
- fformat (stdout, "our pid: %d\n", getpid ());
-
- vec_validate (a, 0);
-
- a->root_path = chroot_path;
- a->name = SVM_GLOBAL_REGION_NAME;
- a->baseva = SVM_GLOBAL_REGION_BASEVA;
- a->size = SVM_GLOBAL_REGION_SIZE;
- a->flags = SVM_FLAGS_NODATA;
-
- shm_name = shm_name_from_svm_map_region_args (a);
-
- svm_fd = shm_open ((char *) shm_name, O_RDWR, 0777);
-
- if (svm_fd < 0)
- {
- perror ("svm_region_map(mmap open)");
- goto out;
- }
-
- vec_free (shm_name);
-
- root_rp = mmap (0, MMAP_PAGESIZE,
- PROT_READ | PROT_WRITE, MAP_SHARED, svm_fd, 0);
-
- if (root_rp == (svm_region_t *) MAP_FAILED)
- {
- close (svm_fd);
- clib_warning ("mmap");
- goto out;
- }
-
- /* Remap now that the region has been placed */
- clib_warning ("remap to 0x%x", root_rp->virtual_base);
-
- a->baseva = root_rp->virtual_base;
- a->size = root_rp->virtual_size;
- munmap (root_rp, MMAP_PAGESIZE);
-
- root_rp = (void *) mmap ((void *) a->baseva, a->size,
- PROT_READ | PROT_WRITE,
- MAP_SHARED | MAP_FIXED, svm_fd, 0);
- if ((uword) root_rp == (uword) MAP_FAILED)
- {
- clib_unix_warning ("mmap");
- goto out;
- }
-
- close (svm_fd);
-
- if ((uword) root_rp != root_rp->virtual_base)
- {
- clib_warning ("mmap botch");
- goto out;
- }
-
- if (pthread_mutex_trylock (&root_rp->mutex))
- {
- clib_warning ("root_rp->mutex LOCKED by pid %d, tag %d, cleared...",
- root_rp->mutex_owner_pid, root_rp->mutex_owner_tag);
- memset (&root_rp->mutex, 0, sizeof (root_rp->mutex));
- goto out;
- }
- else
- {
- clib_warning ("root_rp->mutex OK...\n");
- pthread_mutex_unlock (&root_rp->mutex);
- }
-
-out:
- vec_free (a);
- /*
- * Now that the root region is known to be OK,
- * fix broken subregions
- */
- subregion_repair (chroot_path);
-
- if (crash_root_region)
- {
- clib_warning ("Leaving root region locked on purpose...");
- pthread_mutex_lock (&root_rp->mutex);
- root_rp->mutex_owner_pid = getpid ();
- root_rp->mutex_owner_tag = 99;
- }
- svm_region_exit ();
-}
-
-int
-main (int argc, char **argv)
-{
- unformat_input_t input;
- int parsed = 0;
- char *name;
- char *chroot_path = 0;
- u8 *chroot_u8;
-
- unformat_init_command_line (&input, argv);
-
- while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
- {
- if (unformat (&input, "show-verbose"))
- {
- show (chroot_path, 1);
- parsed++;
- }
- else if (unformat (&input, "show"))
- {
- show (chroot_path, 0);
- parsed++;
- }
- else if (unformat (&input, "client-scan"))
- {
- svm_client_scan (chroot_path);
- parsed++;
- }
- else if (unformat (&input, "repair"))
- {
- repair (chroot_path, 0 /* fix it */ );
- parsed++;
- }
- else if (unformat (&input, "crash"))
- {
- repair (chroot_path, 1 /* crash it */ );
- parsed++;
- }
- else if (unformat (&input, "trace-on %s", &name))
- {
- trace (chroot_path, name, 1);
- parsed++;
- }
- else if (unformat (&input, "trace-off %s", &name))
- {
- trace (chroot_path, name, 0);
- parsed++;
- }
- else if (unformat (&input, "chroot %s", &chroot_u8))
- {
- chroot_path = (char *) chroot_u8;
- }
- else
- {
- break;
- }
- }
-
- unformat_free (&input);
-
- if (!parsed)
- {
- fformat (stdout,
- "%s: show | show-verbose | client-scan | trace-on <region-name>\n",
- argv[0]);
- fformat (stdout, " trace-off <region-name>\n");
- }
- exit (0);
-}
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */