diff options
Diffstat (limited to 'vlib-api/vlibmemory/memory_client.c')
-rw-r--r-- | vlib-api/vlibmemory/memory_client.c | 283 |
1 files changed, 0 insertions, 283 deletions
diff --git a/vlib-api/vlibmemory/memory_client.c b/vlib-api/vlibmemory/memory_client.c deleted file mode 100644 index 234a0a5a330..00000000000 --- a/vlib-api/vlibmemory/memory_client.c +++ /dev/null @@ -1,283 +0,0 @@ -/* - *------------------------------------------------------------------ - * memory_client.c - API message handling, client code. - * - * Copyright (c) 2010 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 <setjmp.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 <vlib/vlib.h> -#include <vlib/unix/unix.h> -#include <vlibmemory/api.h> - -#include <vlibmemory/vl_memory_msg_enum.h> - -#define vl_typedefs /* define message structures */ -#include <vlibmemory/vl_memory_api_h.h> -#undef vl_typedefs - -#define vl_endianfun /* define message structures */ -#include <vlibmemory/vl_memory_api_h.h> -#undef vl_endianfun - -/* instantiate all the print functions we know about */ -#define vl_print(handle, ...) clib_warning (__VA_ARGS__) -#define vl_printfun -#include <vlibmemory/vl_memory_api_h.h> -#undef vl_printfun - -typedef struct -{ - u8 rx_thread_jmpbuf_valid; - u8 connected_to_vlib; - jmp_buf rx_thread_jmpbuf; - pthread_t rx_thread_handle; - /* Plugin message base lookup scheme */ - volatile u8 first_msg_id_reply_ready; - u16 first_msg_id_reply; -} memory_client_main_t; - -memory_client_main_t memory_client_main; - -static void * -rx_thread_fn (void *arg) -{ - unix_shared_memory_queue_t *q; - memory_client_main_t *mm = &memory_client_main; - api_main_t *am = &api_main; - - q = am->vl_input_queue; - - /* So we can make the rx thread terminate cleanly */ - if (setjmp (mm->rx_thread_jmpbuf) == 0) - { - mm->rx_thread_jmpbuf_valid = 1; - while (1) - { - vl_msg_api_queue_handler (q); - } - } - pthread_exit (0); -} - -static void -vl_api_rx_thread_exit_t_handler (vl_api_rx_thread_exit_t * mp) -{ - memory_client_main_t *mm = &memory_client_main; - vl_msg_api_free (mp); - longjmp (mm->rx_thread_jmpbuf, 1); -} - -static void -noop_handler (void *notused) -{ -} - -#define foreach_api_msg \ -_(RX_THREAD_EXIT, rx_thread_exit) - -static int -connect_to_vlib_internal (char *svm_name, char *client_name, - int rx_queue_size, int want_pthread) -{ - int rv = 0; - memory_client_main_t *mm = &memory_client_main; - - if ((rv = vl_client_api_map (svm_name))) - { - clib_warning ("vl_client_api map rv %d", rv); - return rv; - } - -#define _(N,n) \ - vl_msg_api_set_handlers(VL_API_##N, #n, \ - vl_api_##n##_t_handler, \ - noop_handler, \ - vl_api_##n##_t_endian, \ - vl_api_##n##_t_print, \ - sizeof(vl_api_##n##_t), 1); - foreach_api_msg; -#undef _ - - if (vl_client_connect (client_name, 0 /* punt quota */ , - rx_queue_size /* input queue */ ) < 0) - { - vl_client_api_unmap (); - return -1; - } - - /* Start the rx queue thread */ - - if (want_pthread) - { - rv = pthread_create (&mm->rx_thread_handle, - NULL /*attr */ , rx_thread_fn, 0); - if (rv) - clib_warning ("pthread_create returned %d", rv); - } - - mm->connected_to_vlib = 1; - return 0; -} - -int -vl_client_connect_to_vlib (char *svm_name, char *client_name, - int rx_queue_size) -{ - return connect_to_vlib_internal (svm_name, client_name, rx_queue_size, - 1 /* want pthread */ ); -} - -int -vl_client_connect_to_vlib_no_rx_pthread (char *svm_name, char *client_name, - int rx_queue_size) -{ - return connect_to_vlib_internal (svm_name, client_name, rx_queue_size, - 0 /* want pthread */ ); -} - -void -vl_client_disconnect_from_vlib (void) -{ - memory_client_main_t *mm = &memory_client_main; - api_main_t *am = &api_main; - uword junk; - - if (mm->rx_thread_jmpbuf_valid) - { - vl_api_rx_thread_exit_t *ep; - ep = vl_msg_api_alloc (sizeof (*ep)); - ep->_vl_msg_id = ntohs (VL_API_RX_THREAD_EXIT); - vl_msg_api_send_shmem (am->vl_input_queue, (u8 *) & ep); - pthread_join (mm->rx_thread_handle, (void **) &junk); - } - if (mm->connected_to_vlib) - { - vl_client_disconnect (); - vl_client_api_unmap (); - } - memset (mm, 0, sizeof (*mm)); -} - -static void vl_api_get_first_msg_id_reply_t_handler - (vl_api_get_first_msg_id_reply_t * mp) -{ - memory_client_main_t *mm = &memory_client_main; - i32 retval = ntohl (mp->retval); - - mm->first_msg_id_reply = (retval >= 0) ? ntohs (mp->first_msg_id) : ~0; - mm->first_msg_id_reply_ready = 1; -} - -u16 -vl_client_get_first_plugin_msg_id (char *plugin_name) -{ - vl_api_get_first_msg_id_t *mp; - api_main_t *am = &api_main; - memory_client_main_t *mm = &memory_client_main; - f64 timeout; - void *old_handler; - clib_time_t clib_time; - u16 rv = ~0; - - if (strlen (plugin_name) + 1 > sizeof (mp->name)) - return (rv); - - memset (&clib_time, 0, sizeof (clib_time)); - clib_time_init (&clib_time); - - /* Push this plugin's first_msg_id_reply handler */ - old_handler = am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY]; - am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY] = (void *) - vl_api_get_first_msg_id_reply_t_handler; - - /* Ask the data-plane for the message-ID base of the indicated plugin */ - mm->first_msg_id_reply_ready = 0; - - mp = vl_msg_api_alloc (sizeof (*mp)); - memset (mp, 0, sizeof (*mp)); - mp->_vl_msg_id = ntohs (VL_API_GET_FIRST_MSG_ID); - mp->client_index = am->my_client_index; - strncpy ((char *) mp->name, plugin_name, sizeof (mp->name) - 1); - - vl_msg_api_send_shmem (am->shmem_hdr->vl_input_queue, (u8 *) & mp); - - /* Synchronously wait for the answer */ - do - { - timeout = clib_time_now (&clib_time) + 1.0; - - while (clib_time_now (&clib_time) < timeout) - { - if (mm->first_msg_id_reply_ready == 1) - { - rv = mm->first_msg_id_reply; - goto result; - } - } - /* Restore old handler */ - am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY] = old_handler; - - return rv; - } - while (0); - -result: - - /* Restore the old handler */ - am->msg_handlers[VL_API_GET_FIRST_MSG_ID_REPLY] = old_handler; - - if (rv == (u16) ~ 0) - clib_warning ("plugin '%s' not registered", plugin_name); - - return rv; -} - -void -vlib_node_sync_stats (vlib_main_t * vm, vlib_node_t * n) -{ - clib_warning ("STUB called..."); -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |