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authorFlorin Coras <fcoras@cisco.com>2019-11-25 13:40:42 -0800
committerDave Barach <openvpp@barachs.net>2019-12-06 13:32:33 +0000
commit59cea1a9dff31ec9e735ea2764dbf958e95f6bd7 (patch)
tree4efa43c95b66e0d9722b27ab9ea6dd0eaf46340c
parentf1910326d537ad7692d4a9b807ebbef93106acea (diff)
api: multiple socket connections per single process
Type: feature Change-Id: Idea1857eb2225881d2982a7aa2ae7a79536b3f33 Signed-off-by: Florin Coras <fcoras@cisco.com>
-rw-r--r--src/vlibmemory/socket_client.c175
-rw-r--r--src/vlibmemory/socket_client.h20
2 files changed, 164 insertions, 31 deletions
diff --git a/src/vlibmemory/socket_client.c b/src/vlibmemory/socket_client.c
index 96330ce481a..0c4e11e4be9 100644
--- a/src/vlibmemory/socket_client.c
+++ b/src/vlibmemory/socket_client.c
@@ -42,6 +42,7 @@
#undef vl_printfun
socket_client_main_t socket_client_main;
+__thread socket_client_main_t *socket_client_ctx = &socket_client_main;
/* Debug aid */
u32 vl (void *p) __attribute__ ((weak));
@@ -52,10 +53,23 @@ vl (void *p)
return vec_len (p);
}
-int
-vl_socket_client_read (int wait)
+static socket_client_main_t *
+vl_socket_client_ctx_push (socket_client_main_t * ctx)
+{
+ socket_client_main_t *old = socket_client_ctx;
+ socket_client_ctx = ctx;
+ return old;
+}
+
+static void
+vl_socket_client_ctx_pop (socket_client_main_t * old_ctx)
+{
+ socket_client_ctx = old_ctx;
+}
+
+static int
+vl_socket_client_read_internal (socket_client_main_t * scm, int wait)
{
- socket_client_main_t *scm = &socket_client_main;
u32 data_len = 0, msg_size;
int n, current_rx_index;
msgbuf_t *mbp = 0;
@@ -139,9 +153,26 @@ vl_socket_client_read (int wait)
}
int
-vl_socket_client_write (void)
+vl_socket_client_read (int wait)
+{
+ return vl_socket_client_read_internal (socket_client_ctx, wait);
+}
+
+int
+vl_socket_client_read2 (socket_client_main_t * scm, int wait)
+{
+ socket_client_main_t *old_ctx;
+ int rv;
+
+ old_ctx = vl_socket_client_ctx_push (scm);
+ rv = vl_socket_client_read_internal (scm, wait);
+ vl_socket_client_ctx_pop (old_ctx);
+ return rv;
+}
+
+static int
+vl_socket_client_write_internal (socket_client_main_t * scm)
{
- socket_client_main_t *scm = &socket_client_main;
int n;
msgbuf_t msgbuf = {
@@ -167,18 +198,40 @@ vl_socket_client_write (void)
return n;
}
+int
+vl_socket_client_write (void)
+{
+ return vl_socket_client_write_internal (socket_client_ctx);
+}
+
+int
+vl_socket_client_write2 (socket_client_main_t * scm)
+{
+ socket_client_main_t *old_ctx;
+ int rv;
+
+ old_ctx = vl_socket_client_ctx_push (scm);
+ rv = vl_socket_client_write_internal (scm);
+ vl_socket_client_ctx_pop (old_ctx);
+ return rv;
+}
+
+void *
+vl_socket_client_msg_alloc2 (socket_client_main_t * scm, int nbytes)
+{
+ scm->socket_tx_nbytes = nbytes;
+ return ((void *) scm->socket_tx_buffer);
+}
+
void *
vl_socket_client_msg_alloc (int nbytes)
{
- socket_client_main.socket_tx_nbytes = nbytes;
- return ((void *) socket_client_main.socket_tx_buffer);
+ return vl_socket_client_msg_alloc2 (socket_client_ctx, nbytes);
}
void
-vl_socket_client_disconnect (void)
+vl_socket_client_disconnect2 (socket_client_main_t * scm)
{
- socket_client_main_t *scm = &socket_client_main;
-
if (vl_mem_client_is_connected ())
{
vl_client_disconnect_from_vlib_no_unmap ();
@@ -190,16 +243,27 @@ vl_socket_client_disconnect (void)
}
void
-vl_socket_client_enable_disable (int enable)
+vl_socket_client_disconnect (void)
+{
+ vl_socket_client_disconnect2 (socket_client_ctx);
+}
+
+void
+vl_socket_client_enable_disable2 (socket_client_main_t * scm, int enable)
{
- socket_client_main_t *scm = &socket_client_main;
scm->socket_enable = enable;
}
+void
+vl_socket_client_enable_disable (int enable)
+{
+ vl_socket_client_enable_disable2 (socket_client_ctx, enable);
+}
+
clib_error_t *
vl_sock_api_recv_fd_msg (int socket_fd, int fds[], int n_fds, u32 wait)
{
- socket_client_main_t *scm = &socket_client_main;
+ socket_client_main_t *scm = socket_client_ctx;
char msgbuf[16];
char ctl[CMSG_SPACE (sizeof (int) * n_fds)
+ CMSG_SPACE (sizeof (struct ucred))];
@@ -263,7 +327,7 @@ vl_sock_api_recv_fd_msg (int socket_fd, int fds[], int n_fds, u32 wait)
static void vl_api_sock_init_shm_reply_t_handler
(vl_api_sock_init_shm_reply_t * mp)
{
- socket_client_main_t *scm = &socket_client_main;
+ socket_client_main_t *scm = socket_client_ctx;
ssvm_private_t *memfd = &scm->memfd_segment;
i32 retval = ntohl (mp->retval);
api_main_t *am = &api_main;
@@ -323,7 +387,7 @@ static void vl_api_sock_init_shm_reply_t_handler
static void
vl_api_sockclnt_create_reply_t_handler (vl_api_sockclnt_create_reply_t * mp)
{
- socket_client_main_t *scm = &socket_client_main;
+ socket_client_main_t *scm = socket_client_ctx;
if (!mp->response)
{
scm->socket_enable = 1;
@@ -356,10 +420,10 @@ vl_sock_client_install_message_handlers (void)
}
int
-vl_socket_client_connect (char *socket_path, char *client_name,
- u32 socket_buffer_size)
+vl_socket_client_connect_internal (socket_client_main_t * scm,
+ char *socket_path, char *client_name,
+ u32 socket_buffer_size)
{
- socket_client_main_t *scm = &socket_client_main;
vl_api_sockclnt_create_t *mp;
clib_socket_t *sock;
clib_error_t *error;
@@ -393,7 +457,7 @@ vl_socket_client_connect (char *socket_path, char *client_name,
_vec_len (scm->socket_tx_buffer) = 0;
scm->name = format (0, "%s", client_name);
- mp = vl_socket_client_msg_alloc (sizeof (*mp));
+ mp = vl_socket_client_msg_alloc2 (scm, sizeof (*mp));
mp->_vl_msg_id = htons (VL_API_SOCKCLNT_CREATE);
strncpy ((char *) mp->name, client_name, sizeof (mp->name) - 1);
mp->name[sizeof (mp->name) - 1] = 0;
@@ -401,28 +465,50 @@ vl_socket_client_connect (char *socket_path, char *client_name,
clib_time_init (&scm->clib_time);
- if (vl_socket_client_write () <= 0)
+ if (vl_socket_client_write_internal (scm) <= 0)
return (-1);
- if (vl_socket_client_read (5))
+ if (vl_socket_client_read_internal (scm, 5))
return (-1);
return (0);
}
int
-vl_socket_client_init_shm (vl_api_shm_elem_config_t * config,
- int want_pthread)
+vl_socket_client_connect (char *socket_path, char *client_name,
+ u32 socket_buffer_size)
+{
+ return vl_socket_client_connect_internal (socket_client_ctx, socket_path,
+ client_name, socket_buffer_size);
+}
+
+int
+vl_socket_client_connect2 (socket_client_main_t * scm, char *socket_path,
+ char *client_name, u32 socket_buffer_size)
+{
+ socket_client_main_t *old_ctx;
+ int rv;
+
+ old_ctx = vl_socket_client_ctx_push (scm);
+ rv = vl_socket_client_connect_internal (socket_client_ctx, socket_path,
+ client_name, socket_buffer_size);
+ vl_socket_client_ctx_pop (old_ctx);
+ return rv;
+}
+
+int
+vl_socket_client_init_shm_internal (socket_client_main_t * scm,
+ vl_api_shm_elem_config_t * config,
+ int want_pthread)
{
- socket_client_main_t *scm = &socket_client_main;
vl_api_sock_init_shm_t *mp;
int rv, i;
u64 *cfg;
scm->want_shm_pthread = want_pthread;
- mp = vl_socket_client_msg_alloc (sizeof (*mp) +
- vec_len (config) * sizeof (u64));
+ mp = vl_socket_client_msg_alloc2 (scm, sizeof (*mp) +
+ vec_len (config) * sizeof (u64));
clib_memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = clib_host_to_net_u16 (VL_API_SOCK_INIT_SHM);
mp->client_index = clib_host_to_net_u32 (scm->client_index);
@@ -437,25 +523,54 @@ vl_socket_client_init_shm (vl_api_shm_elem_config_t * config,
}
mp->nitems = vec_len (config);
}
- rv = vl_socket_client_write ();
+ rv = vl_socket_client_write_internal (scm);
if (rv <= 0)
return rv;
- if (vl_socket_client_read (1))
+ if (vl_socket_client_read_internal (scm, 1))
return -1;
return 0;
}
+int
+vl_socket_client_init_shm (vl_api_shm_elem_config_t * config,
+ int want_pthread)
+{
+ return vl_socket_client_init_shm_internal (socket_client_ctx, config,
+ want_pthread);
+}
+
+int
+vl_socket_client_init_shm2 (socket_client_main_t * scm,
+ vl_api_shm_elem_config_t * config,
+ int want_pthread)
+{
+ socket_client_main_t *old_ctx;
+ int rv;
+
+ old_ctx = vl_socket_client_ctx_push (scm);
+ rv = vl_socket_client_init_shm_internal (socket_client_ctx, config,
+ want_pthread);
+ vl_socket_client_ctx_pop (old_ctx);
+ return rv;
+}
+
clib_error_t *
-vl_socket_client_recv_fd_msg (int fds[], int n_fds, u32 wait)
+vl_socket_client_recv_fd_msg2 (socket_client_main_t * scm, int fds[],
+ int n_fds, u32 wait)
{
- socket_client_main_t *scm = &socket_client_main;
if (!scm->socket_fd)
return clib_error_return (0, "no socket");
return vl_sock_api_recv_fd_msg (scm->client_socket.fd, fds, n_fds, wait);
}
+clib_error_t *
+vl_socket_client_recv_fd_msg (int fds[], int n_fds, u32 wait)
+{
+ return vl_socket_client_recv_fd_msg2 (socket_client_ctx, fds, n_fds, wait);
+}
+
/*
* fd.io coding-style-patch-verification: ON
*
diff --git a/src/vlibmemory/socket_client.h b/src/vlibmemory/socket_client.h
index 68cd0f21994..231290088b3 100644
--- a/src/vlibmemory/socket_client.h
+++ b/src/vlibmemory/socket_client.h
@@ -51,14 +51,32 @@ extern socket_client_main_t socket_client_main;
int vl_socket_client_connect (char *socket_path, char *client_name,
u32 socket_buffer_size);
void vl_socket_client_disconnect (void);
+void vl_socket_client_enable_disable (int enable);
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);
int vl_socket_client_init_shm (vl_api_shm_elem_config_t * config,
int want_pthread);
clib_error_t *vl_socket_client_recv_fd_msg (int fds[], int n_fds, u32 wait);
+/*
+ * Socket client apis that explicitly pass socket main as an argument
+ */
+
+int vl_socket_client_connect2 (socket_client_main_t * scm, char *socket_path,
+ char *client_name, u32 socket_buffer_size);
+void vl_socket_client_disconnect2 (socket_client_main_t * scm);
+void vl_socket_client_enable_disable2 (socket_client_main_t * scm,
+ int enable);
+int vl_socket_client_read2 (socket_client_main_t * scm, int wait);
+int vl_socket_client_write2 (socket_client_main_t * scm);
+void *vl_socket_client_msg_alloc2 (socket_client_main_t * scm, int nbytes);
+int vl_socket_client_init_shm2 (socket_client_main_t * scm,
+ vl_api_shm_elem_config_t * config,
+ int want_pthread);
+clib_error_t *vl_socket_client_recv_fd_msg2 (socket_client_main_t * scm,
+ int fds[], int n_fds, u32 wait);
+
#endif /* SRC_VLIBMEMORY_SOCKET_CLIENT_H_ */
/*