1 files changed, 74 insertions, 0 deletions
diff --git a/src/core/pidwait.c b/src/core/pidwait.c
new file mode 100644
index 00000000..7f6d77e3
--- /dev/null
+++ b/src/core/pidwait.c
@@ -0,0 +1,74 @@
+/*
+ pidwait.c :
+
+    Copyright (C) 1999-2000 Timo Sirainen
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include "module.h"
+#include "signals.h"
+#include "modules.h"
+
+#include <sys/wait.h>
+
+static GSList *pids;
+
+static unsigned int childcheck_tag;
+static int signal_pidwait;
+
+/* add a pid to wait list */
+void pidwait_add(int pid)
+{
+	pids = g_slist_append(pids, GINT_TO_POINTER(pid));
+}
+
+/* remove pid from wait list */
+void pidwait_remove(int pid)
+{
+	pids = g_slist_remove(pids, GINT_TO_POINTER(pid));
+}
+
+static int child_check(void)
+{
+	GSList *tmp, *next;
+	int status;
+
+	/* wait for each pid.. */
+	for (tmp = pids; tmp != NULL; tmp = next) {
+                next = tmp->next;
+		if (waitpid(GPOINTER_TO_INT(tmp->data), &status, WNOHANG) > 0) {
+			/* process terminated, remove from list */
+			pids = g_slist_remove(pids, tmp->data);
+			signal_emit_id(signal_pidwait, 1, GPOINTER_TO_INT(tmp->data));
+		}
+	}
+	return 1;
+}
+
+void pidwait_init(void)
+{
+	pids = NULL;
+	childcheck_tag = g_timeout_add(1000, (GSourceFunc) child_check, NULL);
+
+	signal_pidwait = module_get_uniq_id_str("signals", "pidwait");
+}
+
+void pidwait_deinit(void)
+{
+	g_slist_free(pids);
+
+	g_source_remove(childcheck_tag);
+}