Initial import

[samba] / source / lib / dmallocmsg.c

diff --git a/source/lib/dmallocmsg.c b/source/lib/dmallocmsg.c
new file mode 100644 (file)
index 0000000..1b2308e
--- /dev/null
+++ b/source/lib/dmallocmsg.c
@@ -0,0 +1,72 @@
+/* 
+   samba -- Unix SMB/CIFS implementation.
+   Copyright (C) 2002 by Martin Pool
+   
+   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/**
+ * @file dmallocmsg.c
+ *
+ * Glue code to cause dmalloc info to come out when we receive a prod
+ * over samba messaging.
+ **/
+
+#ifdef ENABLE_DMALLOC
+static unsigned long our_dm_mark = 0;
+#endif /* ENABLE_DMALLOC */
+
+
+/**
+ * Respond to a POOL_USAGE message by sending back string form of memory
+ * usage stats.
+ **/
+static void msg_req_dmalloc_mark(int UNUSED(msg_type), struct process_id UNUSED(src_pid),
+                         void *UNUSED(buf), size_t UNUSED(len))
+{
+#ifdef ENABLE_DMALLOC
+       our_dm_mark = dmalloc_mark();
+       DEBUG(2,("Got MSG_REQ_DMALLOC_MARK: mark set\n"));
+#else
+       DEBUG(2,("Got MSG_REQ_DMALLOC_MARK but dmalloc not in this process\n"));
+#endif
+}
+
+
+
+static void msg_req_dmalloc_log_changed(int UNUSED(msg_type),
+                                       struct process_id UNUSED(src_pid),
+                                       void *UNUSED(buf), size_t UNUSED(len))
+{
+#ifdef ENABLE_DMALLOC
+       dmalloc_log_changed(our_dm_mark, True, True, True);
+       DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED: done\n"));
+#else
+       DEBUG(2,("Got MSG_REQ_DMALLOC_LOG_CHANGED but dmalloc not in this process\n"));
+#endif
+}
+
+
+/**
+ * Register handler for MSG_REQ_POOL_USAGE
+ **/
+void register_dmalloc_msgs(void)
+{
+       message_register(MSG_REQ_DMALLOC_MARK, msg_req_dmalloc_mark);
+       message_register(MSG_REQ_DMALLOC_LOG_CHANGED, msg_req_dmalloc_log_changed);
+       DEBUG(2, ("Registered MSG_REQ_DMALLOC_MARK and LOG_CHANGED\n"));
+}