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[Qemu-block] [PATCH v2 3/3] Delete PID file on exit
From: |
Marc-André Lureau |
Subject: |
[Qemu-block] [PATCH v2 3/3] Delete PID file on exit |
Date: |
Fri, 7 Sep 2018 16:13:19 +0400 |
Register an exit notifier to remove the PID file. By the time atexit()
is called, qemu_write_pidfile() guarantees QEMU owns the PID file,
thus we could safely remove it when exiting.
Signed-off-by: Marc-André Lureau <address@hidden>
---
vl.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/vl.c b/vl.c
index 0eaf948d32..51af016602 100644
--- a/vl.c
+++ b/vl.c
@@ -2603,6 +2603,16 @@ static void qemu_run_exit_notifiers(void)
notifier_list_notify(&exit_notifiers, NULL);
}
+static const char *pid_file;
+static Notifier qemu_unlink_pidfile_notifier;
+
+static void qemu_unlink_pidfile(Notifier *n, void *data)
+{
+ if (pid_file) {
+ unlink(pid_file);
+ }
+}
+
bool machine_init_done;
void qemu_add_machine_init_done_notifier(Notifier *notify)
@@ -2927,7 +2937,6 @@ int main(int argc, char **argv, char **envp)
const char *vga_model = NULL;
const char *qtest_chrdev = NULL;
const char *qtest_log = NULL;
- const char *pid_file = NULL;
const char *incoming = NULL;
bool userconfig = true;
bool nographic = false;
@@ -4001,6 +4010,9 @@ int main(int argc, char **argv, char **envp)
exit(1);
}
+ qemu_unlink_pidfile_notifier.notify = qemu_unlink_pidfile;
+ qemu_add_exit_notifier(&qemu_unlink_pidfile_notifier);
+
if (qemu_init_main_loop(&main_loop_err)) {
error_report_err(main_loop_err);
exit(1);
--
2.19.0.rc1