When we daemonize, our pid changes, so we need to rewrite the pid file.
Signed-off-by: David Turner <dtur...@twopensource.com>
---
index-helper.c | 48 ++++++++++++++++++++++++++++++++----------------
1 file changed, 32 insertions(+), 16 deletions(-)
diff --git a/index-helper.c b/index-helper.c
index 7e7ce9b..dc03e1e 100644
--- a/index-helper.c
+++ b/index-helper.c
@@ -288,12 +288,33 @@ static const char * const usage_text[] = {
NULL
};
-int main(int argc, char **argv)
+static const char *write_pid(void)
{
+ static struct strbuf sb = STRBUF_INIT;
static struct lock_file lock;
- struct strbuf sb = STRBUF_INIT;
+ int fd;
+
+ strbuf_reset(&sb);
+ fd = hold_lock_file_for_update(&lock,
+ git_path("index-helper.pid"),
+ LOCK_DIE_ON_ERROR);
+#ifdef GIT_WINDOWS_NATIVE
+ strbuf_addstr(&sb, "HWND");
+#elif defined(USE_WATCHMAN)
+ strbuf_addch(&sb, 'W'); /* see poke_daemon() */
+#endif
+ strbuf_addf(&sb, "%" PRIuMAX, (uintmax_t) getpid());
+ write_in_full(fd, sb.buf, sb.len);
+ commit_lock_file(&lock);
+
+ return sb.buf;
+}
+
+int main(int argc, char **argv)
+{
const char *prefix;
- int fd, idle_in_minutes = 10, detach = 0;
+ int idle_in_minutes = 10, detach = 0;
+ const char *pid_file;
struct option options[] = {
OPT_INTEGER(0, "exit-after", &idle_in_minutes,
N_("exit if not used after some minutes")),
@@ -314,17 +335,7 @@ int main(int argc, char **argv)
options, usage_text, 0))
die(_("too many arguments"));
- fd = hold_lock_file_for_update(&lock,
- git_path("index-helper.pid"),
- LOCK_DIE_ON_ERROR);
-#ifdef GIT_WINDOWS_NATIVE
- strbuf_addstr(&sb, "HWND");
-#elif defined(USE_WATCHMAN)
- strbuf_addch(&sb, 'W'); /* see poke_daemon() */
-#endif
- strbuf_addf(&sb, "%" PRIuMAX, (uintmax_t) getpid());
- write_in_full(fd, sb.buf, sb.len);
- commit_lock_file(&lock);
+ write_pid();
atexit(cleanup);
sigchain_push_common(cleanup_on_signal);
@@ -332,9 +343,14 @@ int main(int argc, char **argv)
if (detach && daemonize(&daemonized))
die_errno("unable to detach");
+ /*
+ * Now that we're daemonized, we need to rewrite the PID file
+ * because we have a new PID.
+ */
+ pid_file = write_pid();
+
if (!idle_in_minutes)
idle_in_minutes = 0xffffffff / 60;
- loop(sb.buf, idle_in_minutes * 60);
- strbuf_release(&sb);
+ loop(pid_file, idle_in_minutes * 60);
return 0;
}
--
2.4.2.767.g62658d5-twtrsrc
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