hal/linux/LinuxMemory.cpp

branch
TOR_BUG_9701
changeset 8
97036ab72558
equal deleted inserted replaced
-1:000000000000 0:d64973859a09
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 * vim: sw=2 ts=8 et :
3 */
4 /* This Source Code Form is subject to the terms of the Mozilla Public
5 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
6 * You can obtain one at http://mozilla.org/MPL/2.0/. */
7
8 #include <stdio.h>
9 #include "Hal.h"
10
11 namespace mozilla {
12 namespace hal_impl {
13
14 uint32_t
15 GetTotalSystemMemory()
16 {
17 static uint32_t sTotalMemory;
18 static bool sTotalMemoryObtained = false;
19
20 if (!sTotalMemoryObtained) {
21 sTotalMemoryObtained = true;
22
23 FILE* fd = fopen("/proc/meminfo", "r");
24 if (!fd) {
25 return 0;
26 }
27
28 int rv = fscanf(fd, "MemTotal: %i kB", &sTotalMemory);
29
30 if (fclose(fd) || rv != 1) {
31 return 0;
32 }
33 }
34
35 return sTotalMemory * 1024;
36 }
37
38 } // namespace hal_impl
39 } // namespace mozilla

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