compositor: Add missing SIGCHLD handler

[src/agl-compositor.git] / src / shell.c

diff --git a/src/shell.c b/src/shell.c
index cb6e592..96f5c63 100644 (file)
--- a/src/shell.c
+++ b/src/shell.c
@@ -33,6 +33,7 @@
 #include <string.h>
 #include <sys/socket.h>
 #include <sys/types.h>
+#include <sys/wait.h>
 #include <unistd.h>
 #include <libweston/libweston.h>
 #include <libweston/config-parser.h>
@@ -928,6 +929,37 @@ struct process_info {
        char *path;
 };
 
+int
+sigchld_handler(int signal_number, void *data)
+{
+       struct weston_process *p;
+       struct ivi_compositor *ivi = data;
+       int status;
+       pid_t pid;
+
+       while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
+               wl_list_for_each(p, &ivi->child_process_list, link) {
+                       if (p->pid == pid)
+                               break;
+               }
+
+               if (&p->link == &ivi->child_process_list) {
+                       weston_log("unknown child process exited\n");
+                       continue;
+               }
+
+               wl_list_remove(&p->link);
+               wl_list_init(&p->link);
+               p->cleanup(p, status);
+       }
+
+       if (pid < 0 && errno != ECHILD)
+               weston_log("waitpid error %s\n", strerror(errno));
+
+       return 1;
+}
+
+
 static void
 process_handle_sigchld(struct weston_process *process, int status)
 {