The Tor Browser: hal/linux/LinuxMemory.cpp@7e26c7da4463

     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/. */

     8 #include <stdio.h>

     9 #include "Hal.h"

    11 namespace mozilla {

    12 namespace hal_impl {

    14 uint32_t

    15 GetTotalSystemMemory()

    16 {

    17   static uint32_t sTotalMemory;

    18   static bool sTotalMemoryObtained = false;

    20   if (!sTotalMemoryObtained) {

    21     sTotalMemoryObtained = true;

    23     FILE* fd = fopen("/proc/meminfo", "r");

    24     if (!fd) {

    25       return 0;

    26     }

    28     int rv = fscanf(fd, "MemTotal: %i kB", &sTotalMemory);

    30     if (fclose(fd) || rv != 1) {

    31       return 0;

    32     }

    33   }

    35   return sTotalMemory * 1024;

    36 }

    38 } // namespace hal_impl

    39 } // namespace mozilla

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