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-rw-r--r--src/vlibmemory/api_common.h267
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diff --git a/src/vlibmemory/api_common.h b/src/vlibmemory/api_common.h
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-/*
- *------------------------------------------------------------------
- * 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_vlibmemory_api_common_h
-#define included_vlibmemory_api_common_h
-
-#include <svm/svm_common.h>
-#include <vppinfra/file.h>
-#include <vlibapi/api_common.h>
-#include <vlibmemory/unix_shared_memory_queue.h>
-
-/* Allocated in shared memory */
-
-/*
- * Ring-allocation scheme for client API messages
- *
- * Only one proc/thread has control of a given message buffer.
- * To free a buffer allocated from one of these rings, we clear
- * a field in the buffer (header), and leave.
- *
- * No locks, no hits, no errors...
- */
-typedef struct ring_alloc_
-{
- unix_shared_memory_queue_t *rp;
- u16 size;
- u16 nitems;
- u32 hits;
- u32 misses;
-} ring_alloc_t;
-
-typedef enum
-{
- VL_API_VLIB_RING,
- VL_API_CLIENT_RING,
- VL_API_QUEUE
-} vl_api_shm_config_type_t;
-
-typedef struct vl_api_ring_config_
-{
- u8 type;
- u8 _pad;
- u16 count;
- u32 size;
-} vl_api_shm_elem_config_t;
-
-STATIC_ASSERT (sizeof (vl_api_shm_elem_config_t) == 8,
- "Size must be exactly 8 bytes");
-
-/*
- * Initializers for the (shared-memory) rings
- * _(size, n). Note: each msg has space for a header.
- */
-#define foreach_vl_aring_size \
-_(64+sizeof(ring_alloc_t), 1024) \
-_(256+sizeof(ring_alloc_t), 128) \
-_(1024+sizeof(ring_alloc_t), 64)
-
-#define foreach_clnt_aring_size \
- _(1024+sizeof(ring_alloc_t), 1024) \
- _(2048+sizeof(ring_alloc_t), 128) \
- _(4096+sizeof(ring_alloc_t), 8)
-
-typedef struct vl_shmem_hdr_
-{
- int version;
-
- /* getpid () for the VLIB client process */
- volatile int vl_pid;
-
- /* Client sends VLIB msgs here. */
- unix_shared_memory_queue_t *vl_input_queue;
-
- /* Vector of rings; one for each size. */
-
- /* VLIB allocates buffers to send msgs to clients here. */
- ring_alloc_t *vl_rings;
-
- /* Clients allocate buffer to send msgs to VLIB here. */
- ring_alloc_t *client_rings;
-
- /* Number of detected application restarts */
- u32 application_restarts;
-
- /* Number of messages reclaimed during application restart */
- u32 restart_reclaims;
-
- /* Number of garbage-collected messages */
- u32 garbage_collects;
-} vl_shmem_hdr_t;
-
-#define VL_SHM_VERSION 2
-
-#define VL_API_EPOCH_MASK 0xFF
-#define VL_API_EPOCH_SHIFT 8
-
-void *vl_msg_api_alloc (int nbytes);
-void *vl_msg_api_alloc_or_null (int nbytes);
-void *vl_msg_api_alloc_as_if_client (int nbytes);
-void *vl_msg_api_alloc_as_if_client_or_null (int nbytes);
-void vl_msg_api_free (void *a);
-int vl_map_shmem (const char *region_name, int is_vlib);
-void vl_register_mapped_shmem_region (svm_region_t * rp);
-void vl_unmap_shmem (void);
-void vl_msg_api_send_shmem (unix_shared_memory_queue_t * q, u8 * elem);
-void vl_msg_api_send_shmem_nolock (unix_shared_memory_queue_t * q, u8 * elem);
-void vl_msg_api_send (vl_api_registration_t * rp, u8 * elem);
-int vl_client_connect (const char *name, int ctx_quota, int input_queue_size);
-void vl_client_disconnect (void);
-unix_shared_memory_queue_t *vl_api_client_index_to_input_queue (u32 index);
-vl_api_registration_t *vl_api_client_index_to_registration (u32 index);
-int vl_client_api_map (const char *region_name);
-void vl_client_api_unmap (void);
-void vl_set_memory_region_name (const char *name);
-void vl_set_memory_root_path (const char *root_path);
-void vl_set_memory_uid (int uid);
-void vl_set_memory_gid (int gid);
-void vl_set_global_memory_baseva (u64 baseva);
-void vl_set_global_memory_size (u64 size);
-void vl_set_api_memory_size (u64 size);
-void vl_set_global_pvt_heap_size (u64 size);
-void vl_set_api_pvt_heap_size (u64 size);
-void vl_client_disconnect_from_vlib (void);
-int vl_client_connect_to_vlib (const char *svm_name, const char *client_name,
- int rx_queue_size);
-int vl_client_connect_to_vlib_no_rx_pthread (const char *svm_name,
- const char *client_name,
- int rx_queue_size);
-int vl_client_connect_to_vlib_no_map (const char *svm_name,
- const char *client_name,
- int rx_queue_size);
-u16 vl_client_get_first_plugin_msg_id (const char *plugin_name);
-
-void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
-u32 vl_api_memclnt_create_internal (char *, unix_shared_memory_queue_t *);
-void vl_init_shmem (svm_region_t * vlib_rp, vl_api_shm_elem_config_t * config,
- int is_vlib, int is_private_region);
-void vl_client_install_client_message_handlers (void);
-void vl_api_send_pending_rpc_requests (vlib_main_t * vm);
-
-/* API messages over sockets */
-
-extern vlib_node_registration_t memclnt_node;
-extern volatile int **vl_api_queue_cursizes;
-
-/* Events sent to the memclnt process */
-#define QUEUE_SIGNAL_EVENT 1
-#define SOCKET_READ_EVENT 2
-
-#define API_SOCKET_FILE "/run/vpp-api.sock"
-
-typedef struct
-{
- clib_file_t *clib_file;
- vl_api_registration_t *regp;
- u8 *data;
-} vl_socket_args_for_process_t;
-
-typedef struct
-{
- /* Server port number */
- u8 *socket_name;
-
- /* By default, localhost... */
- u32 bind_address;
-
- /*
- * (listen, server, client) registrations. Shared memory
- * registrations are in shared memory
- */
- vl_api_registration_t *registration_pool;
- /*
- * Chain-drag variables, so message API handlers
- * (generally) don't know whether they're talking to a socket
- * or to a shared-memory connection.
- */
- vl_api_registration_t *current_rp;
- clib_file_t *current_uf;
- /* One input buffer, shared across all sockets */
- i8 *input_buffer;
-
- /* pool of process args for socket clients */
- vl_socket_args_for_process_t *process_args;
-
- /* Listen for API connections here */
- clib_socket_t socksvr_listen_socket;
-} socket_main_t;
-
-extern socket_main_t socket_main;
-
-typedef struct
-{
- int socket_fd;
- /* Temporarily disable the connection, so we can keep it around... */
- int socket_enable;
-
- clib_socket_t client_socket;
-
- u32 socket_buffer_size;
- u8 *socket_tx_buffer;
- u8 *socket_rx_buffer;
- u32 socket_tx_nbytes;
- int control_pings_outstanding;
-
- u8 *name;
- clib_time_t clib_time;
-} socket_client_main_t;
-
-extern socket_client_main_t socket_client_main;
-
-#define SOCKET_CLIENT_DEFAULT_BUFFER_SIZE 4096
-
-void socksvr_add_pending_output (struct clib_file *uf,
- struct vl_api_registration_ *cf,
- u8 * buffer, uword buffer_bytes);
-
-void vl_free_socket_registration_index (u32 pool_index);
-void vl_socket_process_msg (struct clib_file *uf,
- struct vl_api_registration_ *rp, i8 * input_v);
-clib_error_t *vl_socket_read_ready (struct clib_file *uf);
-void vl_socket_add_pending_output (struct clib_file *uf,
- struct vl_api_registration_ *rp,
- u8 * buffer, uword buffer_bytes);
-void vl_socket_add_pending_output_no_flush (struct clib_file *uf,
- struct vl_api_registration_ *rp,
- u8 * buffer, uword buffer_bytes);
-clib_error_t *vl_socket_write_ready (struct clib_file *uf);
-void vl_socket_api_send (vl_api_registration_t * rp, u8 * elem);
-u32 sockclnt_open_index (char *client_name, char *hostname, int port);
-void sockclnt_close_index (u32 index);
-void vl_client_msg_api_send (vl_api_registration_t * cm, u8 * elem);
-vl_api_registration_t *sockclnt_get_registration (u32 index);
-void vl_api_socket_process_msg (clib_file_t * uf, vl_api_registration_t * rp,
- i8 * input_v);
-
-int vl_socket_client_connect (char *socket_path, char *client_name,
- u32 socket_buffer_size);
-int vl_socket_client_init_shm (vl_api_shm_elem_config_t * config);
-void vl_socket_client_disconnect (void);
-int vl_socket_client_read (int wait);
-int vl_socket_client_write (void);
-void vl_socket_client_enable_disable (int enable);
-void *vl_socket_client_msg_alloc (int nbytes);
-
-#endif /* included_vlibmemory_api_common_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */