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make pidfile writing configurable.

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[ui]toa_to_buf: change API. No users yet.
This commit is contained in:
Denis Vlasenko
2007-03-27 22:01:31 +00:00
parent f4d40c87d3
commit 10457b90db
9 changed files with 51 additions and 50 deletions
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45
networking/udhcp/common.c
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@ -22,47 +22,35 @@ long uptime(void)
return info.uptime;
}
#if ENABLE_FEATURE_PIDFILE
static const char *saved_pidfile;
static void pidfile_delete(void)
{
if (saved_pidfile)
unlink(saved_pidfile);
remove_pidfile(saved_pidfile);
}
#endif
static int pidfile_acquire(const char *pidfile)
static void create_pidfile(const char *pidfile)
{
int pid_fd;
if (!pidfile) return -1;
if (!pidfile)
return;
pid_fd = open(pidfile, O_CREAT|O_WRONLY|O_TRUNC, 0644);
if (pid_fd < 0) {
bb_perror_msg("cannot open pidfile %s", pidfile);
} else {
/* lockf(pid_fd, F_LOCK, 0); */
if (!saved_pidfile)
atexit(pidfile_delete);
saved_pidfile = pidfile;
if (!write_pidfile(pidfile)) {
bb_perror_msg("cannot create pidfile %s", pidfile);
return;
}
return pid_fd;
#if ENABLE_FEATURE_PIDFILE
/* lockf(pid_fd, F_LOCK, 0); */
if (!saved_pidfile)
atexit(pidfile_delete);
saved_pidfile = pidfile;
#endif
}
static void pidfile_write_release(int pid_fd)
{
if (pid_fd < 0) return;
fdprintf(pid_fd, "%d\n", getpid());
/* lockf(pid_fd, F_UNLCK, 0); */
close(pid_fd);
}
void udhcp_make_pidfile(const char *pidfile)
{
int pid_fd;
/* Make sure fd 0,1,2 are open */
bb_sanitize_stdio();
@ -70,8 +58,7 @@ void udhcp_make_pidfile(const char *pidfile)
setlinebuf(stdout);
/* Create pidfile */
pid_fd = pidfile_acquire(pidfile);
pidfile_write_release(pid_fd);
create_pidfile(pidfile);
bb_info_msg("%s (v%s) started", applet_name, BB_VER);
}