michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * vim: sw=2 ts=8 et :
michael@0:  */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include <stdio.h>
michael@0: #include "Hal.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace hal_impl {
michael@0: 
michael@0: uint32_t
michael@0: GetTotalSystemMemory()
michael@0: {
michael@0:   static uint32_t sTotalMemory;
michael@0:   static bool sTotalMemoryObtained = false;
michael@0: 
michael@0:   if (!sTotalMemoryObtained) {
michael@0:     sTotalMemoryObtained = true;
michael@0: 
michael@0:     FILE* fd = fopen("/proc/meminfo", "r");
michael@0:     if (!fd) {
michael@0:       return 0;
michael@0:     }
michael@0: 
michael@0:     int rv = fscanf(fd, "MemTotal: %i kB", &sTotalMemory);
michael@0: 
michael@0:     if (fclose(fd) || rv != 1) {
michael@0:       return 0;
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return sTotalMemory * 1024;
michael@0: }
michael@0: 
michael@0: } // namespace hal_impl
michael@0: } // namespace mozilla