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--- progsys:index [2018/10/26 14:43] – [Ctrl-C] orel
+++ progsys:index [2024/03/18 15:06] (current) – external edit 127.0.0.1
@@ Line 995: / Line 995: @@
 int main(void)
 {
-    // struct sigaction act;
+    signal(SIGINT, handler); // TODO: utiliser sigaction() plutôt que signal() !
-    signal(SIGINT, handler);
     if (fork() == 0)
@@ Line 1014: / Line 1013: @@
+==== Timeout ====
+<code C executer-avant-delai.c>
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <signal.h>
+#include <stdio.h>
+#include <setjmp.h>
+static struct sigaction sa, old;
+static sigjmp_buf env;
+static void myalarm(int sig)
+{
+  printf("alarm!\n");
+  siglongjmp(env,1);
+}
+int executer_avant_delai( void (*fun)(void *), void *parametre, int delai_en_seconde)
+{
+  int ret = 1;
+  sa.sa_handler = myalarm;
+  sa.sa_flags = 0; // SA_RESETHAND;
+  sigemptyset(&sa.sa_mask);
+  sigaction(SIGALRM, &sa, &old);
+  alarm(delai_en_seconde);
+  if(sigsetjmp(env,1) == 0)
+    fun(parametre);
+  else
+    ret = 0; // alarm
+  alarm(0);
+  sigaction(SIGALRM, &old, NULL);
+  return ret;
+}
+</code>