Remove autostart commands after they have been executed.

As there is no need to keep autostart commands in memory, we can safely
remove them as soon as they have been executed. As we previously didn't
clear them at all during config reloads, this also fixes a memory leak.

Note that neither autostarts nor autostarts_always is executed during
config reloads, so removing them from memory is fine as an i3 restart
will cause them to be parsed again.

fixes #2044

diff --git a/src/main.c b/src/main.c
index 563fb00c6a31085d78abb68403200c3de553f0eb..59c0014639bacf0ca19450e772219ffe197b157f 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -819,18 +819,28 @@ int main(int argc, char *argv[]) {
 
     /* Autostarting exec-lines */
     if (autostart) {
-        struct Autostart *exec;
-        TAILQ_FOREACH(exec, &autostarts, autostarts) {
+        while (!TAILQ_EMPTY(&autostarts)) {
+            struct Autostart *exec = TAILQ_FIRST(&autostarts);
+
             LOG("auto-starting %s\n", exec->command);
             start_application(exec->command, exec->no_startup_id);
+
+            FREE(exec->command);
+            TAILQ_REMOVE(&autostarts, exec, autostarts);
+            FREE(exec);
         }
     }
 
     /* Autostarting exec_always-lines */
-    struct Autostart *exec_always;
-    TAILQ_FOREACH(exec_always, &autostarts_always, autostarts_always) {
+    while (!TAILQ_EMPTY(&autostarts_always)) {
+        struct Autostart *exec_always = TAILQ_FIRST(&autostarts_always);
+
         LOG("auto-starting (always!) %s\n", exec_always->command);
         start_application(exec_always->command, exec_always->no_startup_id);
+
+        FREE(exec_always->command);
+        TAILQ_REMOVE(&autostarts_always, exec_always, autostarts_always);
+        FREE(exec_always);
     }
 
     /* Start i3bar processes for all configured bars */