Imported Upstream version 0.8.0~pre1upstream/0.8.0_pre1

1 files changed, 60 insertions, 0 deletions

diff --git a/src/common/slab/malloc.c b/src/common/slab/malloc.c
new file mode 100644
index 0000000..ec5a68d
--- /dev/null
+++ b/src/common/slab/malloc.c
@@ -0,0 +1,60 @@
+/*  Copyright (C) 2011 CZ.NIC, z.s.p.o. <knot-dns@labs.nic.cz>
+
+    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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+/*
+ * Skip unit if not debugging memory.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/resource.h>
+
+#include "common/slab/alloc-common.h"
+
+#ifdef MEM_DEBUG
+/*
+ * ((destructor)) attribute executes this function after main().
+ * \see http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
+ */
+void __attribute__ ((destructor)) usage_dump()
+#else
+void usage_dump()
+#endif
+{
+	/* Get resource usage. */
+	struct rusage usage;
+	if (getrusage(RUSAGE_SELF, &usage) < 0) {
+		memset(&usage, 0, sizeof(struct rusage));
+	}
+
+	fprintf(stderr, "\nMemory statistics:");
+	fprintf(stderr, "\n==================\n");
+
+	fprintf(stderr, "User time: %.03lf ms\nSystem time: %.03lf ms\n",
+	        usage.ru_utime.tv_sec * (double) 1000.0
+	        + usage.ru_utime.tv_usec / (double)1000.0,
+	        usage.ru_stime.tv_sec * (double) 1000.0
+	        + usage.ru_stime.tv_usec / (double)1000.0);
+	fprintf(stderr, "Major page faults: %lu (required I/O)\nMinor page faults: %lu\n",
+	        usage.ru_majflt, usage.ru_minflt);
+	fprintf(stderr, "Number of swaps: %lu\n",
+	        usage.ru_nswap);
+	fprintf(stderr, "Voluntary context switches: %lu\nInvoluntary context switches: %lu\n",
+	        usage.ru_nvcsw,
+	        usage.ru_nivcsw);
+	fprintf(stderr, "==================\n");
+}