From e4130d29e80a40884310481ded90ff845c614f43 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期四, 24 十二月 2020 10:03:14 +0800
Subject: [PATCH] bus force bind
---
src/socket/shm_socket.c | 164 ++++++++++++++++++++++++++++++++++++++++++++----------
1 files changed, 134 insertions(+), 30 deletions(-)
diff --git a/src/socket/shm_socket.c b/src/socket/shm_socket.c
index 8fc4d94..80674c1 100644
--- a/src/socket/shm_socket.c
+++ b/src/socket/shm_socket.c
@@ -7,9 +7,12 @@
-void print_msg(char *head, shm_msg_t &msg) {
+static void print_msg(char *head, shm_msg_t &msg) {
// err_msg(0, "%s: key=%d, type=%d\n", head, msg.key, msg.type);
}
+
+static pthread_once_t _once_ = PTHREAD_ONCE_INIT;
+static pthread_key_t _tmp_recv_socket_key_;
static void *_server_run_msg_rev(void *_socket);
@@ -19,10 +22,14 @@
static int _shm_close_stream_socket(shm_socket_t *socket, bool notifyRemote);
+static void _destrory_tmp_recv_socket_(void *tmp_socket);
+static void _create_tmp_recv_socket_key(void);
+
+// 妫�鏌ey鏄惁宸茬粡琚娇鐢紝鏄繑鍥�0, 鍚﹁繑鍥�1
static inline int _shm_socket_check_key(shm_socket_t *socket) {
void *tmp_ptr = mm_get_by_key(socket->key);
if (tmp_ptr!= NULL && tmp_ptr != (void *)1 && !socket->force_bind ) {
- err_exit(0, "key %d has already been in used!", socket->key);
+ logger->error("key %d has already been in used!", socket->key);
return 0;
}
return 1;
@@ -37,6 +44,8 @@
}
shm_socket_t *shm_open_socket(shm_socket_type_t socket_type) {
+
+ logger->debug("shm_open_socket\n");
shm_socket_t *socket = (shm_socket_t *)calloc(1, sizeof(shm_socket_t));
socket->socket_type = socket_type;
socket->key = -1;
@@ -44,12 +53,15 @@
socket->dispatch_thread = 0;
socket->status = SHM_CONN_CLOSED;
socket->mutex = SemUtil::get(IPC_PRIVATE, 1);
+
return socket;
}
int shm_close_socket(shm_socket_t *socket) {
int ret;
+
+ logger->debug("shm_close_socket\n");
switch (socket->socket_type) {
case SHM_SOCKET_STREAM:
ret = _shm_close_stream_socket(socket, true);
@@ -60,10 +72,17 @@
default:
break;
}
- SemUtil::remove(socket->mutex);
free(socket);
+ SemUtil::remove(socket->mutex);
return ret;
}
+
+// int shm_close_socket(shm_socket_t *socket) {
+
+// // _destrory_tmp_recv_socket_((shm_socket_t *)pthread_getspecific(_tmp_recv_socket_key_));
+
+// return shm_close_socket(socket);;
+// }
int shm_socket_bind(shm_socket_t *socket, int key) {
socket->key = key;
@@ -91,7 +110,9 @@
socket->key = key;
} else {
- _shm_socket_check_key(socket);
+ if(!_shm_socket_check_key(socket)) {
+ return -1;
+ }
}
socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
@@ -161,6 +182,9 @@
}
+/**
+ * @return 0鎴愬姛. 鍏朵粬鍊煎け璐�
+ */
int shm_connect(shm_socket_t *socket, int key) {
if (socket->socket_type != SHM_SOCKET_STREAM) {
logger->error( "can not invoke shm_connect method with a socket which is not "
@@ -170,20 +194,22 @@
hashtable_t *hashtable = mm_get_hashtable();
if (hashtable_get(hashtable, key) == NULL) {
logger->error("shm_connect锛歝onnect at key %d failed!", key);
- exit(1);
+ return -1;
}
if (socket->key == -1) {
socket->key = hashtable_alloc_key(hashtable);
} else {
- _shm_socket_check_key(socket);
+ if(!_shm_socket_check_key(socket)) {
+ return -1;
+ }
}
socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
if ((socket->remoteQueue = _attach_remote_queue(key)) == NULL) {
logger->error("connect to %d failted", key);
- exit(1);
+ return -1;
}
socket->messageQueue = new LockFreeQueue<shm_msg_t, DM_Allocator>(16);
@@ -209,7 +235,7 @@
} else {
logger->error( "connect failted!");
- exit(1);
+ return -1;
}
return 0;
@@ -221,11 +247,11 @@
"SHM_SOCKET_STREAM socket");
exit(1);
}
- // hashtable_t *hashtable = mm_get_hashtable();
- // if(socket->remoteQueue == NULL) {
- // err_msg(errno, "褰撳墠瀹㈡埛绔棤杩炴帴!");
- // return -1;
- // }
+ hashtable_t *hashtable = mm_get_hashtable();
+ if(socket->remoteQueue == NULL) {
+ err_msg(errno, "褰撳墠瀹㈡埛绔棤杩炴帴!");
+ return -1;
+ }
shm_msg_t dest;
dest.type = SHM_COMMON_MSG;
dest.key = socket->key;
@@ -280,17 +306,20 @@
socket->key = hashtable_alloc_key(hashtable);
} else {
- _shm_socket_check_key(socket);
+ if(!_shm_socket_check_key(socket)) {
+ return -1;
+ }
+
}
socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
}
SemUtil::inc(socket->mutex);
- if (key == socket->key) {
- logger->error( "can not send to your self!");
- return -1;
- }
+ // if (key == socket->key) {
+ // logger->error( "can not send to your self!");
+ // return -1;
+ // }
SHMQueue<shm_msg_t> *remoteQueue;
if ((remoteQueue = _attach_remote_queue(key)) == NULL) {
@@ -342,7 +371,9 @@
socket->key = hashtable_alloc_key(hashtable);
} else {
- _shm_socket_check_key(socket);
+ if(!_shm_socket_check_key(socket)) {
+ return -1;
+ }
}
socket->queue = new SHMQueue<shm_msg_t>(socket->key, 16);
@@ -361,11 +392,18 @@
}
if (rv) {
- void *_buf = malloc(src.size);
- memcpy(_buf, src.buf, src.size);
- *buf = _buf;
- *size = src.size;
- *key = src.key;
+ if(buf != NULL) {
+ void *_buf = malloc(src.size);
+ memcpy(_buf, src.buf, src.size);
+ *buf = _buf;
+ }
+
+ if(size != NULL)
+ *size = src.size;
+
+ if(key != NULL)
+ *key = src.key;
+
mm_free(src.buf);
// printf("shm_recvfrom pop after\n");
return 0;
@@ -374,25 +412,84 @@
}
}
-int shm_sendandrecv(shm_socket_t *socket, const void *send_buf,
+
+ /* Free thread-specific data buffer */
+static void _destrory_tmp_recv_socket_(void *tmp_socket)
+{
+ int rv;
+ if(tmp_socket == NULL)
+ return;
+
+ logger->debug("%d destroy tmp socket\n", pthread_self());
+ shm_close_socket((shm_socket_t *)tmp_socket);
+ rv = pthread_setspecific(_tmp_recv_socket_key_, NULL);
+ if ( rv != 0) {
+ logger->error(rv, "shm_sendandrecv : pthread_setspecific");
+ exit(1);
+ }
+}
+
+/* One-time key creation function */
+static void _create_tmp_recv_socket_key(void)
+{
+ int s;
+
+ /* Allocate a unique thread-specific data key and save the address
+ of the destructor for thread-specific data buffers */
+ s = pthread_key_create(&_tmp_recv_socket_key_, _destrory_tmp_recv_socket_);
+ //s = pthread_key_create(&_tmp_recv_socket_key_, NULL);
+ if (s != 0) {
+ logger->error(s, "pthread_key_create");
+ abort(); /* dump core and terminate */
+ exit(1);
+ }
+}
+
+
+
+int shm_sendandrecv_safe(shm_socket_t *socket, const void *send_buf,
const int send_size, const int send_key, void **recv_buf,
int *recv_size, struct timespec *timeout, int flags) {
+ int recv_key;
+ int rv;
+
+ // 鐢╰hread local 淇濊瘉姣忎釜绾跨▼鐢ㄤ竴涓嫭鍗犵殑socket鎺ュ彈瀵规柟杩斿洖鐨勪俊鎭�
+ shm_socket_t *tmp_socket;
+
if (socket->socket_type != SHM_SOCKET_DGRAM) {
logger->error( "shm_socket.shm_sendandrecv: Can't invoke shm_sendandrecv method in a %d type socket "
"which is not a SHM_SOCKET_DGRAM socket ",
socket->socket_type);
exit(1);
}
- int recv_key;
- int rv;
+
- shm_socket_t *tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
+ rv = pthread_once(&_once_, _create_tmp_recv_socket_key);
+ if (rv != 0) {
+ logger->error(rv, "shm_sendandrecv pthread_once");
+ exit(1);
+ }
+
+ tmp_socket = (shm_socket_t *)pthread_getspecific(_tmp_recv_socket_key_);
+ if (tmp_socket == NULL)
+ {
+ /* If first call from this thread, allocate buffer for thread, and save its location */
+ logger->debug("%d create tmp socket\n", pthread_self() );
+ tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
+
+ rv = pthread_setspecific(_tmp_recv_socket_key_, tmp_socket);
+ if ( rv != 0) {
+ logger->error(rv, "shm_sendandrecv : pthread_setspecific");
+ exit(1);
+ }
+ }
+
if ((rv = shm_sendto(tmp_socket, send_buf, send_size, send_key, timeout, flags)) == 0) {
rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_key, timeout, flags);
- shm_close_socket(tmp_socket);
+
return rv;
} else {
- shm_close_socket(tmp_socket);
+
return rv;
}
return -1;
@@ -420,6 +517,13 @@
return -1;
}
+int shm_sendandrecv(shm_socket_t *socket, const void *send_buf,
+ const int send_size, const int send_key, void **recv_buf,
+ int *recv_size, struct timespec *timeout, int flags) {
+ return shm_sendandrecv_unsafe(socket, send_buf, send_size, send_key,recv_buf, recv_size, timeout, flags);
+}
+
+
// ============================================================================================================
/**
--
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