From c057f9faff14614f24165290bfbf53965063199d Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Wed, 23 Apr 2003 00:19:16 +0000
Subject: Limit the number of outstanding print notify messages for a process
 to 1000. Jeremy. (This used to be commit
 aabaac05c6adbb510ed27f87115de3e83e27158c)

---
 source3/lib/messages.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

(limited to 'source3/lib')

diff --git a/source3/lib/messages.c b/source3/lib/messages.c
index 0615cc1883..8706ede706 100644
--- a/source3/lib/messages.c
+++ b/source3/lib/messages.c
@@ -303,6 +303,37 @@ BOOL message_send_pid_with_timeout(pid_t pid, int msg_type, const void *buf, siz
 	return message_send_pid_internal(pid, msg_type, buf, len, duplicates_allowed, timeout);
 }
 
+/****************************************************************************
+ Count the messages pending for a particular pid. Expensive....
+****************************************************************************/
+
+unsigned int messages_pending_for_pid(pid_t pid)
+{
+	TDB_DATA kbuf;
+	TDB_DATA dbuf;
+	char *buf;
+	unsigned int message_count = 0;
+
+	kbuf = message_key_pid(sys_getpid());
+
+	dbuf = tdb_fetch(tdb, kbuf);
+	if (dbuf.dptr == NULL || dbuf.dsize == 0) {
+		SAFE_FREE(dbuf.dptr);
+		return 0;
+	}
+
+	for (buf = dbuf.dptr; dbuf.dsize > sizeof(struct message_rec);) {
+		struct message_rec rec;
+		memcpy(&rec, buf, sizeof(rec));
+		buf += (sizeof(rec) + rec.len);
+		dbuf.dsize -= (sizeof(rec) + rec.len);
+		message_count++;
+	}
+
+	SAFE_FREE(dbuf.dptr);
+	return message_count;
+}
+
 /****************************************************************************
  Retrieve all messages for the current process.
 ****************************************************************************/
-- 
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