From 3a89a77e79407d0d638ddf983ee580410cf807c5 Mon Sep 17 00:00:00 2001
From: wangzhengquan <wangzhengquan85@126.com>
Date: 星期二, 04 八月 2020 15:56:12 +0800
Subject: [PATCH] fix sendto

---
 test_socket/dgram_mod_survey.c |   81 ++++++++++++++++++++++++++++++++++++++--
 1 files changed, 76 insertions(+), 5 deletions(-)

diff --git a/test_socket/dgram_mod_survey.c b/test_socket/dgram_mod_survey.c
index 24a72a5..a492637 100644
--- a/test_socket/dgram_mod_survey.c
+++ b/test_socket/dgram_mod_survey.c
@@ -2,6 +2,20 @@
 #include "shm_mm.h"
 #include "usg_common.h"
 
+
+typedef struct Targ {
+  int port;
+  int id;
+
+}Targ;
+
+void sigint_handler(int sig) {
+   //dgram_mod_close_socket(server_socket);
+  printf("===Catch sigint======================\n");
+  shm_destroy();
+  exit(0);
+}
+
 void server(int port) {
   void *socket = dgram_mod_open_socket();
   dgram_mod_bind(socket, port);
@@ -10,9 +24,12 @@
   char sendbuf[512];
   int rv;
   int remote_port;
-  while ( (rv = dgram_mod_recvfrom(socket, &recvbuf, &size, &remote_port) ) == 0) {
-    printf( "RECEIVED HREARTBEAT FROM %d: %s\n", remote_port, recvbuf);
-    free(recvbuf);
+  while (true) {
+    if ((rv = dgram_mod_recvfrom_timeout(socket, &recvbuf, &size, &remote_port, 5, 0) ) == 0) {
+      printf( "RECEIVED HREARTBEAT FROM %d: %s\n", remote_port, recvbuf);
+      free(recvbuf);
+    }
+    
   }
   dgram_mod_close_socket(socket);
 }
@@ -26,13 +43,67 @@
     sprintf(sendbuf, "%d", i);
     printf("SEND HEART:%s\n", sendbuf);
     dgram_mod_sendto(socket, sendbuf, strlen(sendbuf) + 1, port);
-    sleep(1);
+    // sleep(1);
     i++;
   }
   dgram_mod_close_socket(socket);
 }
 
+
+void *runclient(void *arg) {
+  signal(SIGINT,  sigint_handler);
+  Targ *targ = (Targ *)arg;
+  int port = targ->port;
+  void *socket = dgram_mod_open_socket();
+  int size;
+  char sendbuf[512];
+  long scale = 10;
+  long i = 0;
+  while (i < scale) {
+    sprintf(sendbuf, "%d", i);
+    printf("%d SEND HEART:%s\n", targ->id, sendbuf);
+    dgram_mod_sendto(socket, sendbuf, strlen(sendbuf) + 1, port);
+   // sleep(1);
+    i++;
+  }
+  
+  dgram_mod_close_socket(socket);
+  return (void *)i;
+}
+
  
+void startClients(int port) {
+
+  int status, i = 0, processors = 100;
+  void *res[processors];
+  Targ *targs = (Targ *)calloc(processors, sizeof(Targ));
+  pthread_t tids[processors];
+  char sendbuf[512];
+
+  struct timeval start;
+  gettimeofday(&start, NULL);
+  for (i = 0; i < processors; i++) {
+    targs[i].port = port;
+    targs[i].id = i;
+    pthread_create(&tids[i], NULL, runclient, (void *)&targs[i]);
+  }
+
+  for (i = 0; i < processors; i++) {
+    if (pthread_join(tids[i], &res[i]) != 0) {
+      perror("multyThreadClient pthread_join");
+    } else {
+      fprintf(stderr, "client(%d) 鍙戦�� %ld 鏉℃暟鎹甛n", i, (long)res[i]);
+    }
+  }
+
+  struct timeval end;
+  gettimeofday(&end, NULL);
+
+  double difftime = end.tv_sec * 1000000 + end.tv_usec - (start.tv_sec * 1000000 + start.tv_usec);
+  long diffsec = (long) (difftime/1000000);
+  long diffmsec = difftime - diffsec*1000000;
+  printf("cost: %ld sec: %ld msc\n", diffsec, diffmsec);
+}
 
 int main(int argc, char *argv[]) {
   shm_init(512);
@@ -51,6 +122,6 @@
   if (strcmp("client", argv[1]) == 0)
     client(port);
 
-  
+  shm_destroy();
   return 0;
 }
\ No newline at end of file

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