From b63ce299ddacea2ad487dc635926ed52ff422c20 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期一, 03 八月 2020 11:40:17 +0800
Subject: [PATCH] add timeout nowait

---
 src/socket/shm_socket.c |   38 ++++++++++++++++++++++++++------------
 1 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/src/socket/shm_socket.c b/src/socket/shm_socket.c
index 4a705ad..f95379a 100644
--- a/src/socket/shm_socket.c
+++ b/src/socket/shm_socket.c
@@ -5,17 +5,19 @@
 
 static Logger logger = LoggerFactory::getLogger();
 
+
+
 void print_msg(char *head, shm_msg_t &msg) {
   // err_msg(0, "%s: port=%d, type=%d\n", head, msg.port, msg.type);
 }
 
-void *_server_run_msg_rev(void *_socket);
+static void *_server_run_msg_rev(void *_socket);
 
-void *_client_run_msg_rev(void *_socket);
+static void *_client_run_msg_rev(void *_socket);
 
-int _shm_close_dgram_socket(shm_socket_t *socket);
+static int _shm_close_dgram_socket(shm_socket_t *socket);
 
-int _shm_close_stream_socket(shm_socket_t *socket, bool notifyRemote);
+static int _shm_close_stream_socket(shm_socket_t *socket, bool notifyRemote);
 
 static inline int  _shm_socket_check_key(shm_socket_t *socket) {
    void *tmp_ptr = mm_get_by_key(socket->port);
@@ -239,9 +241,10 @@
   }
 }
 
+
 // 鐭繛鎺ユ柟寮忓彂閫�
 int shm_sendto(shm_socket_t *socket, const void *buf, const int size,
-               const int port, const struct timespec *timeout) {
+               const int port, const struct timespec *timeout, const int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
     err_exit(0, "Can't invoke shm_sendto method in a %d type socket  which is "
                 "not a SHM_SOCKET_DGRAM socket ",
@@ -273,12 +276,14 @@
 
   SHMQueue<shm_msg_t> *remoteQueue;
   if ((remoteQueue = _attach_remote_queue(port)) == NULL) {
-  	err_msg(0, "shm_sendto failed, then other end has been closed!");
+  	err_msg(0, "shm_sendto failed, the other end has been closed, or has not been opened!");
     return -1;
   }
   // printf("shm_sendto push before\n");
   bool rv;
-  if(timeout != NULL) {
+  if(flags & SHM_MSG_NOWAIT != 0) {
+    rv = remoteQueue->push_nowait(dest);
+  } else if(timeout != NULL) {
   	rv = remoteQueue->push_timeout(dest, timeout);
   } else {
   	rv = remoteQueue->push(dest);
@@ -296,7 +301,7 @@
 }
 
 // 鐭繛鎺ユ柟寮忔帴鍙�
-int shm_recvfrom(shm_socket_t *socket, void **buf, int *size, int *port) {
+int shm_recvfrom(shm_socket_t *socket, void **buf, int *size, int *port,  struct timespec *timeout,  int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
     err_exit(0, "Can't invoke shm_recvfrom method in a %d type socket  which "
                 "is not a SHM_SOCKET_DGRAM socket ",
@@ -316,7 +321,16 @@
 
   shm_msg_t src;
   // printf("shm_recvfrom pop before\n");
-  if (socket->queue->pop(src)) {
+  bool rv;
+   if(flags & SHM_MSG_NOWAIT != 0) {
+    rv = socket->queue->pop_nowait(src);
+  } else if(timeout != NULL) {
+    rv = socket->queue->pop_timeout(src, timeout);
+  } else {
+    rv = socket->queue->pop(src);
+  }
+
+  if (rv) {
     void *_buf = malloc(src.size);
     memcpy(_buf, src.buf, src.size);
     *buf = _buf;
@@ -332,7 +346,7 @@
 
 int shm_sendandrecv(shm_socket_t *socket, const void *send_buf,
                     const int send_size, const int send_port, void **recv_buf,
-                    int *recv_size) {
+                    int *recv_size,  struct timespec *timeout,  int flags) {
   if (socket->socket_type != SHM_SOCKET_DGRAM) {
     err_exit(0, "Can't invoke shm_sendandrecv method in a %d type socket  "
                 "which is not a SHM_SOCKET_DGRAM socket ",
@@ -342,8 +356,8 @@
   int rv;
 
   shm_socket_t *tmp_socket = shm_open_socket(SHM_SOCKET_DGRAM);
-  if (shm_sendto(tmp_socket, send_buf, send_size, send_port) == 0) {
-    rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_port);
+  if (shm_sendto(tmp_socket, send_buf, send_size, send_port, timeout, flags) == 0) {
+    rv = shm_recvfrom(tmp_socket, recv_buf, recv_size, &recv_port, timeout, flags);
     shm_close_socket(tmp_socket);
     return rv;
   }

--
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