From 9bb21fc726dc663c4e943e489148a6b343c79ee8 Mon Sep 17 00:00:00 2001
From: Yuxuan Shui <yshuiv7@gmail.com>
Date: Wed, 16 Sep 2020 19:25:10 +0100
Subject: [PATCH] core: remove pid file on shutdown

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
---
 src/picom.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/picom.c b/src/picom.c
index d30cec0d..9b7c534b 100644
--- a/src/picom.c
+++ b/src/picom.c
@@ -2409,6 +2409,7 @@ int main(int argc, char **argv) {
 	// Main loop
 	bool quit = false;
 	int ret_code = 0;
+	char *pid_file = NULL;
 
 	do {
 		Display *dpy = XOpenDisplay(NULL);
@@ -2451,6 +2452,9 @@ int main(int argc, char **argv) {
 		}
 		session_run(ps_g);
 		quit = ps_g->quit;
+		if (quit && ps_g->o.write_pid_path) {
+			pid_file = strdup(ps_g->o.write_pid_path);
+		}
 		session_destroy(ps_g);
 		free(ps_g);
 		ps_g = NULL;
@@ -2460,6 +2464,10 @@ int main(int argc, char **argv) {
 	} while (!quit);
 
 	free(config_file);
+	if (pid_file) {
+		log_trace("remove pid file %s", pid_file);
+		unlink(pid_file);
+	}
 
 	log_deinit_tls();