From 45e00aca28504b27f3ad6b4abf364c3d57f34510 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期一, 22 二月 2021 14:05:28 +0800
Subject: [PATCH] lock free queue
---
src/socket/shm_socket.cpp | 619 ++++++++++++++++++++++++++++++++++++++++---------------
1 files changed, 446 insertions(+), 173 deletions(-)
diff --git a/src/socket/shm_socket.cpp b/src/socket/shm_socket.cpp
index 9544827..7e33cc6 100644
--- a/src/socket/shm_socket.cpp
+++ b/src/socket/shm_socket.cpp
@@ -4,10 +4,13 @@
#include <map>
#include <cassert>
#include "bus_error.h"
+#include "sole.h"
+#include "shm_mm.h"
+#include "key_def.h"
static Logger *logger = LoggerFactory::getLogger();
-
+ShmQueueStMap * shmQueueStMap ;
static void print_msg(char *head, shm_packet_t &msg) {
// err_msg(0, "%s: key=%d, type=%d\n", head, msg.key, msg.type);
@@ -18,6 +21,21 @@
static void _destrory_socket_perthread(void *tmp_socket);
static void _create_socket_key_perthread(void);
+
+static int shm_recvpakfrom(shm_socket_t *sockt, shm_packet_t *recvpak , const struct timespec *timeout, int flag);
+
+
+static int shm_sendpakto(shm_socket_t *sockt, const shm_packet_t *sendpak,
+ const int key, const struct timespec *timeout, const int flag);
+
+
+static int _shm_sendandrecv_uuid(shm_socket_t *sockt, const void *send_buf,
+ const int send_size, const int key, void **recv_buf,
+ int *recv_size, const struct timespec *timeout, int flags);
+
+static int _shm_sendandrecv_thread_local(shm_socket_t *sockt, const void *send_buf,
+ const int send_size, const int send_key, void **recv_buf,
+ int *recv_size, const struct timespec *timeout, int flags) ;
// 妫�鏌ey鏄惁宸茬粡琚娇鐢紝 鏈浣跨敤鍒欑粦瀹歬ey
static LockFreeQueue<shm_packet_t> * shm_socket_bind_queue(int key, bool force) {
@@ -58,31 +76,17 @@
return queue;
}
-
-size_t shm_socket_remove_keys(int keys[], size_t length) {
- hashtable_t *hashtable = mm_get_hashtable();
- LockFreeQueue<shm_packet_t> *mqueue;
- size_t count = 0;
- for(int i = 0; i< length; i++) {
- // 閿�姣佸叡浜唴瀛樼殑queue
- mqueue = (LockFreeQueue<shm_packet_t> *)hashtable_get(hashtable, keys[i]);
- delete mqueue;
- hashtable_remove(hashtable, keys[i]);
- count++;
- }
- return count;
-}
-
-shm_socket_t *shm_open_socket(shm_socket_type_t socket_type) {
+shm_socket_t *shm_socket_open(shm_socket_type_t socket_type) {
int s, type;
pthread_mutexattr_t mtxAttr;
- 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 = 0;
- socket->force_bind = false;
- socket->queue = NULL;
+ logger->debug("shm_socket_open\n");
+ // shm_socket_t *socket = (shm_socket_t *)calloc(1, sizeof(shm_socket_t));
+ shm_socket_t *sockt = new shm_socket_t;
+ sockt->socket_type = socket_type;
+ sockt->key = 0;
+ sockt->force_bind = false;
+ sockt->queue = NULL;
s = pthread_mutexattr_init(&mtxAttr);
@@ -91,7 +95,7 @@
s = pthread_mutexattr_settype(&mtxAttr, PTHREAD_MUTEX_ERRORCHECK);
if (s != 0)
err_exit(s, "pthread_mutexattr_settype");
- s = pthread_mutex_init(&(socket->mutex), &mtxAttr);
+ s = pthread_mutex_init(&(sockt->mutex), &mtxAttr);
if (s != 0)
err_exit(s, "pthread_mutex_init");
@@ -99,45 +103,70 @@
if (s != 0)
err_exit(s, "pthread_mutexattr_destroy");
- return socket;
+
+ shmQueueStMap = shm_mm_attach<ShmQueueStMap>(SHM_QUEUE_ST_KEY);
+
+ return sockt;
}
-int shm_close_socket(shm_socket_t *socket) {
+
+static int _shm_socket_close_(shm_socket_t *sockt) {
- int s;
-
- logger->debug("shm_close_socket\n");
- if(socket->queue != NULL) {
- delete socket->queue;
- socket->queue = NULL;
+ int rv;
+ logger->debug("shm_socket_close\n");
+ // if(sockt->queue != NULL) {
+ // delete sockt->queue;
+ // sockt->queue = NULL;
+ // }
+
+ // hashtable_remove(hashtable, mkey);
+
+
+ if(sockt->key != 0) {
+ auto it = shmQueueStMap->find(sockt->key);
+ if(it != shmQueueStMap->end()) {
+ it->second.status = SHM_QUEUE_ST_CLOSED;
+ it->second.closeTime = time(NULL);
+ }
}
- s = pthread_mutex_destroy(&(socket->mutex) );
- if(s != 0) {
- err_exit(s, "shm_close_socket");
- }
+
- free(socket);
+ pthread_mutex_destroy(&(sockt->mutex) );
+ free(sockt);
return 0;
}
-int shm_socket_bind(shm_socket_t *socket, int key) {
- socket->key = key;
+int shm_socket_close(shm_socket_t *sockt) {
+ return _shm_socket_close_(sockt);
+}
+
+
+int shm_socket_stop(shm_socket_t *sockt) {
+ struct timespec timeout = {5, 0};
+ shm_packet_t sendpak = {0};
+ sendpak.key = sockt->key;
+ sendpak.action = BUS_ACTION_STOP;
+ sendpak.size = 0;
+ return shm_sendpakto(sockt, &sendpak, sockt->key, &timeout, BUS_TIMEOUT_FLAG);
+}
+
+int shm_socket_bind(shm_socket_t *sockt, int key) {
+ sockt->key = key;
return 0;
}
-int shm_socket_force_bind(shm_socket_t *socket, int key) {
- socket->force_bind = true;
- socket->key = key;
+int shm_socket_force_bind(shm_socket_t *sockt, int key) {
+ sockt->force_bind = true;
+ sockt->key = key;
return 0;
}
-int shm_socket_get_key(shm_socket_t *sk){
- return sk->key;
+int shm_socket_get_key(shm_socket_t *sockt){
+ return sockt->key;
}
-
// 鐭繛鎺ユ柟寮忓彂閫�
@@ -145,108 +174,89 @@
const int key, const struct timespec *timeout, const int flag) {
int rv;
-
- hashtable_t *hashtable = mm_get_hashtable();
-
- if ((rv = pthread_mutex_lock(&(sockt->mutex))) != 0)
- err_exit(rv, "shm_sendto : pthread_mutex_lock");
-
- if (sockt->queue == NULL) {
- if (sockt->key == 0) {
- sockt->key = hashtable_alloc_key(hashtable);
- }
- sockt->queue = shm_socket_bind_queue( sockt->key, sockt->force_bind);
- if(sockt->queue == NULL ) {
- logger->error("%s. key = %d", bus_strerror(EBUS_KEY_INUSED), sockt->key);
- return EBUS_KEY_INUSED;
- }
+ shm_packet_t sendpak = {0};
+ sendpak.key = sockt->key;
+ sendpak.size = size;
+ if(buf != NULL) {
+ sendpak.buf = mm_malloc(size);
+ memcpy(sendpak.buf, buf, size);
}
-
- if ((rv = pthread_mutex_unlock(&(sockt->mutex))) != 0)
- err_exit(rv, "shm_sendto : pthread_mutex_unlock");
-
- // There is some case where a sockt need to send to himeself, for example when bus server need to stop, he need to send himself
- // a top message.
-
- if (key == sockt->key) {
- logger->error( "can not send to your self!");
- return EBUS_SENDTO_SELF;
- }
-
- LockFreeQueue<shm_packet_t> *remoteQueue;
- if ((remoteQueue = shm_socket_attach_queue(key)) == NULL) {
- bus_errno = EBUS_CLOSED;
- logger->error("sendto key %d failed, %s", key, bus_strerror(bus_errno));
- return EBUS_CLOSED;
- }
-
- shm_packet_t dest;
- dest.key = sockt->key;
- dest.size = size;
- dest.buf = mm_malloc(size);
- memcpy(dest.buf, buf, size);
-
- rv = remoteQueue->push(dest, timeout, flag);
-
- if (rv == 0) {
- printf("%d sendto %d suc.\n", shm_socket_get_key(sockt), key);
- return 0;
- } else {
- mm_free(dest.buf);
- if(rv == ETIMEDOUT)
- return EBUS_TIMEOUT;
- else {
- logger->debug("====%d sendto key %d failed %s", shm_socket_get_key(sockt), key, bus_strerror(rv));
- return rv;
- }
- }
+
+ rv = shm_sendpakto(sockt, &sendpak, key, timeout, flag);
+ return rv;
}
+int shm_sendandrecv(shm_socket_t *sockt, const void *send_buf,
+ const int send_size, const int key, void **recv_buf,
+ int *recv_size, const struct timespec *timeout, int flags) {
+ // return _shm_sendandrecv_uuid(sockt, send_buf, send_size, key, recv_buf, recv_size, timeout, flags);
+ return _shm_sendandrecv_thread_local(sockt, send_buf, send_size, key, recv_buf, recv_size, timeout, flags);
+}
+
+
+/**
+ * @callback void (*recvandsend_callback_fn)(void *recvbuf, int recvsize, int key, void **sendbuf, int *sendsize)
+ * sendbuf 鍜� sendsize鏄痗allbak_fn鍥炶皟鍑芥暟鐨勮繑鍥炲��, 鍒嗗埆琛ㄧず鍙戦�佹暟鎹紝鍜屽彂閫佹暟鎹殑澶у皬銆�
+ *
+ */
+int shm_recvandsend(shm_socket_t *sockt, recvandsend_callback_fn callback,
+ const struct timespec *timeout, int flag, void *user_data) {
+
+ int rv;
+
+ void *sendbuf, *recvbuf = NULL;
+ int sendsize = 0;
+ shm_packet_t recvpak = {0};
+
+ rv = shm_recvpakfrom(sockt , &recvpak, timeout, flag);
+
+ if (rv != 0) {
+ if(rv == ETIMEDOUT){
+ logger->debug("%d shm_recvandsend failed %s", shm_socket_get_key(sockt), bus_strerror(EBUS_TIMEOUT));
+ return EBUS_TIMEOUT;
+ }
+
+ logger->error("%d shm_recvandsend failed %s", shm_socket_get_key(sockt), bus_strerror(rv));
+ return rv;
+ }
+
+ if(recvpak.buf != NULL) {
+ recvbuf = malloc(recvpak.size);
+ memcpy(recvbuf, recvpak.buf, recvpak.size);
+ mm_free(recvpak.buf);
+ }
+
+ callback(recvbuf, recvpak.size, recvpak.key, &sendbuf, &sendsize, user_data);
+
+ shm_packet_t sendpak = {0};
+ sendpak.key = sockt->key;
+ sendpak.size = sendsize;
+ memcpy(sendpak.uuid, recvpak.uuid, sizeof sendpak.uuid);
+ if(sendbuf !=NULL && sendsize > 0) {
+ sendpak.buf = mm_malloc(sendsize);
+ memcpy(sendpak.buf, sendbuf, sendsize);
+ } else {
+
+ logger->warn("%d shm_recvandsend : sendbuf is null", shm_socket_get_key(sockt));
+ // return -1;
+ }
+
+ rv = shm_sendpakto(sockt, &sendpak, recvpak.key, timeout, flag);
+
+ return 0;
+
+}
// 鐭繛鎺ユ柟寮忔帴鍙�
int shm_recvfrom(shm_socket_t *sockt, void **buf, int *size, int *key, const struct timespec *timeout, int flag) {
int rv;
- hashtable_t *hashtable = mm_get_hashtable();
+ shm_packet_t recvpak;
+ rv = shm_recvpakfrom(sockt , &recvpak, timeout, flag);
- if ((rv = pthread_mutex_lock(&(sockt->mutex))) != 0)
- err_exit(rv, "shm_recvfrom : pthread_mutex_lock");
-
- if (sockt->queue == NULL) {
- if (sockt->key == 0) {
- sockt->key = hashtable_alloc_key(hashtable);
- }
- sockt->queue = shm_socket_bind_queue( sockt->key, sockt->force_bind);
- if(sockt->queue == NULL ) {
- logger->error("%s. key = %d", bus_strerror(EBUS_KEY_INUSED), sockt->key);
- return EBUS_KEY_INUSED;
- }
- }
-
- if ((rv = pthread_mutex_unlock(&(sockt->mutex))) != 0)
- err_exit(rv, "shm_recvfrom : pthread_mutex_unlock");
+ if (rv != 0) {
- shm_packet_t src;
-
- rv = sockt->queue->pop(src, timeout, flag);
-
- if (rv == 0) {
- 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);
- return 0;
- } else {
if(rv == ETIMEDOUT)
return EBUS_TIMEOUT;
else {
@@ -254,10 +264,27 @@
return rv;
}
+ }
+
+ if(buf != NULL && recvpak.buf != NULL) {
+ void *_buf = malloc(recvpak.size);
+ memcpy(_buf, recvpak.buf, recvpak.size);
+ *buf = _buf;
}
+
+ if(size != NULL)
+ *size = recvpak.size;
+
+ if(key != NULL)
+ *key = recvpak.key;
+
+ mm_free(recvpak.buf);
+ return 0;
}
+
+// =================================================================================================
/* Free thread-specific data buffer */
static void _destrory_socket_perthread(void *tmp_socket)
@@ -267,7 +294,7 @@
return;
logger->debug("%d destroy tmp socket\n", pthread_self());
- shm_close_socket((shm_socket_t *)tmp_socket);
+ _shm_socket_close_((shm_socket_t *)tmp_socket);
rv = pthread_setspecific(_perthread_socket_key_, NULL);
if ( rv != 0) {
logger->error(rv, "shm_sendandrecv : pthread_setspecific");
@@ -291,14 +318,94 @@
}
-// use thread local
-int _shm_sendandrecv_thread_local(shm_socket_t *sockt, const void *send_buf,
- const int send_size, const int send_key, void **recv_buf,
+static int _shm_sendandrecv_uuid(shm_socket_t *sockt, const void *send_buf,
+ const int send_size, const int key, void **recv_buf,
int *recv_size, const struct timespec *timeout, int flags) {
- int recv_key;
- int rv;
- int tryn = 0;
+ int rv, tryn = 6;
+ shm_packet_t sendpak;
+ shm_packet_t recvpak;
+ std::map<std::string, shm_packet_t>::iterator recvbufIter;
+
+ std::string uuid = sole::uuid4().str();
+
+ sendpak.key = sockt->key;
+ sendpak.size = send_size;
+ if(send_buf != NULL) {
+ sendpak.buf = mm_malloc(send_size);
+ memcpy(sendpak.buf, send_buf, send_size);
+ }
+ memcpy(sendpak.uuid, uuid.c_str(), uuid.length() + 1);
+ // uuid.copy(sendpak.uuid, sizeof sendpak.uuid);
+ rv = shm_sendpakto(sockt, &sendpak, key, timeout, flags);
+
+ if(rv != 0) {
+ return rv;
+ }
+
+ while(tryn > 0) {
+ tryn--;
+ recvbufIter = sockt->recvbuf.find(uuid);
+ if(recvbufIter != sockt->recvbuf.end()) {
+ // 鍦ㄧ紦瀛橀噷鏌ュ埌浜哢UID鍖归厤鎴愬姛鐨�
+logger->debug("get from recvbuf: %s", uuid.c_str());
+ recvpak = recvbufIter->second;
+ sockt->recvbuf.erase(recvbufIter);
+ goto LABLE_SUC;
+ }
+
+ rv = shm_recvpakfrom(sockt, &recvpak, timeout, flags);
+
+ if (rv != 0) {
+
+ if(rv == ETIMEDOUT) {
+ return EBUS_TIMEOUT;
+ }
+
+ logger->debug("%d shm_recvfrom failed %s", shm_socket_get_key(sockt), bus_strerror(rv));
+ return rv;
+ }
+
+logger->debug("send uuid:%s, recv uuid: %s", uuid.c_str(), recvpak.uuid);
+ if(strlen(recvpak.uuid) == 0) {
+ continue;
+ } else if (strncmp(uuid.c_str(), recvpak.uuid, sizeof recvpak.uuid) == 0) {
+ // 鍙戦�佷笌鎺ュ彈鐨刄UID鍖归厤鎴愬姛
+ goto LABLE_SUC;
+ } else {
+ // 绛旈潪鎵�闂紝鏀惧埌缂撳瓨閲�
+ sockt->recvbuf.insert({recvpak.uuid, recvpak});
+ continue;
+ }
+ }
+
+LABLE_FAIL:
+ return EBUS_RECVFROM_WRONG_END;
+
+LABLE_SUC:
+ if(recv_buf != NULL) {
+ void *_buf = malloc(recvpak.size);
+ memcpy(_buf, recvpak.buf, recvpak.size);
+ *recv_buf = _buf;
+ mm_free(recvpak.buf);
+ }
+
+ if(recv_size != NULL)
+ *recv_size = recvpak.size;
+
+ return 0;
+}
+
+// use thread local
+static int _shm_sendandrecv_thread_local(shm_socket_t *sockt, const void *send_buf,
+ const int send_size, const int key, void **recv_buf,
+ int *recv_size, const struct timespec *timeout, int flags) {
+
+
+ int rv, tryn = 6;
+ shm_packet_t sendpak;
+ shm_packet_t recvpak;
+ std::map<int, shm_packet_t>::iterator recvbufIter;
// 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;
@@ -315,7 +422,7 @@
{
/* If first call from this thread, allocate buffer for thread, and save its location */
logger->debug("%ld create tmp socket\n", (long)pthread_self() );
- tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
+ tmp_socket = shm_socket_open(SHM_SOCKET_DGRAM);
rv = pthread_setspecific(_perthread_socket_key_, tmp_socket);
if ( rv != 0) {
@@ -323,36 +430,72 @@
exit(1);
}
}
+
- if ((rv = shm_sendto(tmp_socket, send_buf, send_size, send_key, timeout, flags)) == 0) {
+ sendpak.key = tmp_socket->key;
+ sendpak.size = send_size;
+ if(send_buf != NULL) {
+ sendpak.buf = mm_malloc(send_size);
+ memcpy(sendpak.buf, send_buf, send_size);
+ }
+ rv = shm_sendpakto(tmp_socket, &sendpak, key, timeout, flags);
- while(tryn < 3) {
- tryn++;
- rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_key, timeout, flags);
- if(rv != 0) {
- logger->error("_shm_sendandrecv_thread_local : %s\n", bus_strerror(rv));
- return rv;
- }
-
- // 瓒呮椂瀵艰嚧鎺ュ彂閫佸璞★紝涓庤繑鍥炲璞′笉瀵瑰簲鐨勬儏鍐�
- if(send_key != recv_key) {
- logger->debug("======%d use tmp_socket %d, send to %d, receive from %d\n", shm_socket_get_key(sockt), shm_socket_get_key(tmp_socket), send_key, recv_key);
- // logger->error( "_shm_sendandrecv_alloc_new: send key expect to equal to recv key! send key =%d , recv key=%d", send_key, recv_key);
- // exit(1);
- continue;
- // return EBUS_RECVFROM_WRONG_END;
- }
+ if(rv != 0) {
+ return rv;
+ }
- return 0;
+ while(tryn > 0) {
+ tryn--;
+ recvbufIter = tmp_socket->recvbuf2.find(key);
+ if(recvbufIter != tmp_socket->recvbuf2.end()) {
+ // 鍦ㄧ紦瀛橀噷鏌ュ埌浜唊ey鍖归厤鎴愬姛鐨�
+ // logger->info("get from recvbuf: %d", key);
+ recvpak = recvbufIter->second;
+ tmp_socket->recvbuf2.erase(recvbufIter);
+ goto LABLE_SUC;
}
-
- return EBUS_RECVFROM_WRONG_END;
- }
- return rv;
+ rv = shm_recvpakfrom(tmp_socket, &recvpak, timeout, flags);
+
+ if (rv != 0) {
+
+ if(rv == ETIMEDOUT) {
+ return EBUS_TIMEOUT;
+ }
+
+ logger->debug("%d shm_recvfrom failed %s", shm_socket_get_key(tmp_socket), bus_strerror(rv));
+ return rv;
+ }
+
+ if (key == recvpak.key) {
+ // 鍙戦�佷笌鎺ュ彈鐨刄UID鍖归厤鎴愬姛
+ goto LABLE_SUC;
+ } else {
+ // 绛旈潪鎵�闂紝鏀惧埌缂撳瓨閲�
+ tmp_socket->recvbuf2.insert({recvpak.key, recvpak});
+ continue;
+ }
+ }
+
+LABLE_FAIL:
+ return EBUS_RECVFROM_WRONG_END;
+
+LABLE_SUC:
+ if(recv_buf != NULL) {
+ void *_buf = malloc(recvpak.size);
+ memcpy(_buf, recvpak.buf, recvpak.size);
+ *recv_buf = _buf;
+ mm_free(recvpak.buf);
+ }
+
+ if(recv_size != NULL)
+ *recv_size = recvpak.size;
+
+
+ return 0;
}
-int _shm_sendandrecv_alloc_new(shm_socket_t *sockt, const void *send_buf,
+static int _shm_sendandrecv_alloc_new(shm_socket_t *sockt, const void *send_buf,
const int send_size, const int send_key, void **recv_buf,
int *recv_size, const struct timespec *timeout, int flags) {
int recv_key;
@@ -362,7 +505,7 @@
shm_socket_t *tmp_socket;
- tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
+ tmp_socket = shm_socket_open(SHM_SOCKET_DGRAM);
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);
@@ -388,14 +531,144 @@
return EBUS_RECVFROM_WRONG_END;
}
- shm_close_socket(tmp_socket);
+ _shm_socket_close_(tmp_socket);
return rv;
}
-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, const struct timespec *timeout, int flags) {
- return _shm_sendandrecv_thread_local(socket, send_buf, send_size, send_key,recv_buf, recv_size, timeout, flags);
+
+static int shm_sendpakto(shm_socket_t *sockt, const shm_packet_t *sendpak,
+ const int key, const struct timespec *timeout, const int flag) {
+
+ int rv;
+ shm_queue_status_t stRecord;
+ LockFreeQueue<shm_packet_t> *remoteQueue;
+ hashtable_t *hashtable = mm_get_hashtable();
+
+ if( sockt->queue != NULL)
+ goto LABEL_PUSH;
+
+ if(hashtable_get_queue_count(hashtable) > QUEUE_COUNT_LIMIT) {
+ return EBUS_EXCEED_LIMIT;
+ }
+
+ {
+ if ((rv = pthread_mutex_lock(&(sockt->mutex))) != 0)
+ err_exit(rv, "shm_sendto : pthread_mutex_lock");
+
+ if (sockt->queue == NULL) {
+ if (sockt->key == 0) {
+ sockt->key = hashtable_alloc_key(hashtable);
+ }
+ sockt->queue = shm_socket_bind_queue( sockt->key, sockt->force_bind);
+ if(sockt->queue == NULL ) {
+ logger->error("%s. key = %d", bus_strerror(EBUS_KEY_INUSED), sockt->key);
+ return EBUS_KEY_INUSED;
+ }
+
+ // 鏍囪key瀵瑰簲鐨勭姸鎬� 锛屼负opened
+ stRecord.status = SHM_QUEUE_ST_OPENED;
+ stRecord.createTime = time(NULL);
+ shmQueueStMap->insert({sockt->key, stRecord});
+
+ }
+
+ if ((rv = pthread_mutex_unlock(&(sockt->mutex))) != 0)
+ err_exit(rv, "shm_sendto : pthread_mutex_unlock");
+
+ }
+
+
+ LABEL_PUSH:
+ if (sendpak->action != BUS_ACTION_STOP && key == sockt->key) {
+ logger->error( "can not send to your self!");
+ return EBUS_SENDTO_SELF;
+ }
+
+ // 妫�鏌ey鏍囪鐨勭姸鎬�
+ auto it = shmQueueStMap->find(key);
+ if(it != shmQueueStMap->end()) {
+ if(it->second.status == SHM_QUEUE_ST_CLOSED) {
+ // key瀵瑰簲鐨勭姸鎬佹槸鍏抽棴鐨�
+ goto ERR_CLOSED;
+ }
+ }
+
+ remoteQueue = shm_socket_attach_queue(key);
+
+ if (remoteQueue == NULL ) {
+ goto ERR_CLOSED;
+ }
+
+ rv = remoteQueue->push(*sendpak, timeout, flag);
+ return rv;
+
+ERR_CLOSED:
+ logger->error("sendto key %d failed, %s", key, bus_strerror(EBUS_CLOSED));
+ return EBUS_CLOSED;
+
}
+
+// 鐭繛鎺ユ柟寮忔帴鍙�
+static int shm_recvpakfrom(shm_socket_t *sockt, shm_packet_t *_recvpak , const struct timespec *timeout, int flag) {
+ int rv;
+ shm_queue_status_t stRecord;
+ hashtable_t *hashtable = mm_get_hashtable();
+ shm_packet_t recvpak;
+
+ if( sockt->queue != NULL)
+ goto LABEL_POP;
+
+ if(hashtable_get_queue_count(hashtable) > QUEUE_COUNT_LIMIT) {
+ return EBUS_EXCEED_LIMIT;
+ }
+
+ {
+ if ((rv = pthread_mutex_lock(&(sockt->mutex))) != 0)
+ err_exit(rv, "shm_recvfrom : pthread_mutex_lock");
+
+
+ if (sockt->key == 0) {
+ sockt->key = hashtable_alloc_key(hashtable);
+ }
+ sockt->queue = shm_socket_bind_queue( sockt->key, sockt->force_bind);
+ if(sockt->queue == NULL ) {
+ logger->error("%s. key = %d", bus_strerror(EBUS_KEY_INUSED), sockt->key);
+ return EBUS_KEY_INUSED;
+ }
+
+ // 鏍囪key瀵瑰簲鐨勭姸鎬� 锛屼负opened
+ stRecord.status = SHM_QUEUE_ST_OPENED;
+ stRecord.createTime = time(NULL);
+ shmQueueStMap->insert({sockt->key, stRecord});
+
+ if ((rv = pthread_mutex_unlock(&(sockt->mutex))) != 0)
+ err_exit(rv, "shm_recvfrom : pthread_mutex_unlock");
+
+ }
+
+LABEL_POP:
+
+ // 妫�鏌ey鏍囪鐨勭姸鎬�
+ // auto shmQueueMapIter = shmQueueStMap->find(sockt->key);
+ // if(shmQueueMapIter != shmQueueStMap->end()) {
+ // stRecord = shmQueueMapIter->second;
+ // if(stRecord.status = SHM_QUEUE_ST_CLOSED) {
+ // // key瀵瑰簲鐨勭姸鎬佹槸鍏抽棴鐨�
+ // goto ERR_CLOSED;
+ // }
+ // }
+
+ rv = sockt->queue->pop(recvpak, timeout, flag);
+ if(rv != 0)
+ return rv;
+
+
+ if(recvpak.action == BUS_ACTION_STOP) {
+ return EBUS_STOPED;
+ }
+ *_recvpak = recvpak;
+ return rv;
+}
+
--
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