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daemon: added comments to daemonize_detach()

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This commit is contained in:
Max Kellermann 2009-02-15 16:28:39 +01:00
parent 42415592b4
commit 59e62d95bd
1 changed files with 9 additions and 0 deletions
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9
src/daemon.c
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@ -131,18 +131,27 @@ daemonize_detach(void)
{ {
pid_t pid; pid_t pid;
/* flush all file handles before duplicating the buffers */
fflush(NULL); fflush(NULL);
/* detach from parent process */
pid = fork(); pid = fork();
if (pid < 0) if (pid < 0)
g_error("fork() failed: %s", g_strerror(errno)); g_error("fork() failed: %s", g_strerror(errno));
if (pid > 0) if (pid > 0)
/* exit the parent process */
_exit(EXIT_SUCCESS); _exit(EXIT_SUCCESS);
/* release the current working directory */
if (chdir("/") < 0) if (chdir("/") < 0)
g_error("problems changing to root directory"); g_error("problems changing to root directory");
/* detach from the current session */
setsid(); setsid();
g_debug("daemonized!"); g_debug("daemonized!");