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authorFurkan Sahin <furkansahin824@proton.me>2024-09-25 06:35:30 -0500
committerSimon Ser <contact@emersion.fr>2024-09-28 16:23:21 +0200
commit00e9a941523baa4afa1f9c077235aa7aa5e8aeab (patch)
tree1107e55b125e0ce45a342e3a0ffed85c1af19bed
parent63345977e2c411359a049c40cf2c1044a22b4f4a (diff)
swaybar: Fix 100% cpu usage if dbus dies.
Currently, swaybar does not gracefully die if it detects that the dbus connection was lost. Although it's not recommended to restart dbus without restarting the compositor, it can very easily happen. In the case it does, compositor's tray should not consume 100% cpu until it has to be force killed. apply suggestions just setting the bar to not running will call teardown and unref the dbus.
-rw-r--r--swaybar/bar.c2
-rw-r--r--swaybar/ipc.c3
-rw-r--r--swaybar/tray/tray.c12
3 files changed, 12 insertions, 5 deletions
diff --git a/swaybar/bar.c b/swaybar/bar.c
index 5b1213a8..4d20f20f 100644
--- a/swaybar/bar.c
+++ b/swaybar/bar.c
@@ -508,7 +508,7 @@ void bar_run(struct swaybar *bar) {
}
#if HAVE_TRAY
if (bar->tray) {
- loop_add_fd(bar->eventloop, bar->tray->fd, POLLIN, tray_in, bar->tray->bus);
+ loop_add_fd(bar->eventloop, bar->tray->fd, POLLIN, tray_in, bar);
}
#endif
while (bar->running) {
diff --git a/swaybar/ipc.c b/swaybar/ipc.c
index 03500bdf..71c9a4c5 100644
--- a/swaybar/ipc.c
+++ b/swaybar/ipc.c
@@ -518,8 +518,7 @@ static bool handle_barconfig_update(struct swaybar *bar, const char *payload,
#if HAVE_TRAY
if (oldcfg->tray_hidden && !newcfg->tray_hidden) {
bar->tray = create_tray(bar);
- loop_add_fd(bar->eventloop, bar->tray->fd, POLLIN, tray_in,
- bar->tray->bus);
+ loop_add_fd(bar->eventloop, bar->tray->fd, POLLIN, tray_in, bar);
} else if (bar->tray && newcfg->tray_hidden) {
loop_remove_fd(bar->eventloop, bar->tray->fd);
destroy_tray(bar->tray);
diff --git a/swaybar/tray/tray.c b/swaybar/tray/tray.c
index b0545f4a..a4f382bf 100644
--- a/swaybar/tray/tray.c
+++ b/swaybar/tray/tray.c
@@ -1,4 +1,5 @@
#include <cairo.h>
+#include <poll.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
@@ -90,9 +91,16 @@ void destroy_tray(struct swaybar_tray *tray) {
}
void tray_in(int fd, short mask, void *data) {
- sd_bus *bus = data;
+ struct swaybar *bar = data;
int ret;
- while ((ret = sd_bus_process(bus, NULL)) > 0) {
+
+ if (mask & (POLLHUP | POLLERR)) {
+ sway_log(SWAY_ERROR, "D-Bus connection closed unexpectedly");
+ bar->running = false;
+ return;
+ }
+
+ while ((ret = sd_bus_process(bar->tray->bus, NULL)) > 0) {
// This space intentionally left blank
}
if (ret < 0) {