/* * Copyright (C) 2016 Igalia S.L. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "CurrentProcessMemoryStatus.h" #if OS(LINUX) #include <stdio.h> #include <stdlib.h> #include <unistd.h> namespace WebCore { static inline size_t systemPageSize() { static size_t pageSize = 0; if (!pageSize) pageSize = sysconf(_SC_PAGE_SIZE); return pageSize; } void currentProcessMemoryStatus(ProcessMemoryStatus& memoryStatus) { FILE* file = fopen("/proc/self/statm", "r"); if (!file) return; char buffer[128]; char* line = fgets(buffer, 128, file); fclose(file); if (!line) return; size_t pageSize = systemPageSize(); char* end = nullptr; unsigned long long intValue = strtoull(line, &end, 10); memoryStatus.size = intValue * pageSize; intValue = strtoull(end, &end, 10); memoryStatus.resident = intValue * pageSize; intValue = strtoull(end, &end, 10); memoryStatus.shared = intValue * pageSize; intValue = strtoull(end, &end, 10); memoryStatus.text = intValue * pageSize; intValue = strtoull(end, &end, 10); memoryStatus.lib = intValue * pageSize; intValue = strtoull(end, &end, 10); memoryStatus.data = intValue * pageSize; intValue = strtoull(end, &end, 10); memoryStatus.dt = intValue * pageSize; } } // namespace WebCore #endif // OS(LINUX)