Repo created

TMessagesProj/jni/voip/webrtc/base/process/process_metrics_posix.cc

@@ -0,0 +1,126 @@
+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/process/process_metrics.h"
+
+#include <limits.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "base/allocator/buildflags.h"
+#include "base/logging.h"
+#include "build/build_config.h"
+
+#if !defined(OS_FUCHSIA)
+#include <sys/resource.h>
+#endif
+
+#if defined(OS_MACOSX)
+#include <malloc/malloc.h>
+#else
+#include <malloc.h>
+#endif
+
+namespace base {
+
+int64_t TimeValToMicroseconds(const struct timeval& tv) {
+  int64_t ret = tv.tv_sec;  // Avoid (int * int) integer overflow.
+  ret *= Time::kMicrosecondsPerSecond;
+  ret += tv.tv_usec;
+  return ret;
+}
+
+ProcessMetrics::~ProcessMetrics() = default;
+
+#if !defined(OS_FUCHSIA)
+
+#if defined(OS_LINUX)
+static const rlim_t kSystemDefaultMaxFds = 8192;
+#elif defined(OS_MACOSX)
+static const rlim_t kSystemDefaultMaxFds = 256;
+#elif defined(OS_SOLARIS)
+static const rlim_t kSystemDefaultMaxFds = 8192;
+#elif defined(OS_FREEBSD)
+static const rlim_t kSystemDefaultMaxFds = 8192;
+#elif defined(OS_NETBSD)
+static const rlim_t kSystemDefaultMaxFds = 1024;
+#elif defined(OS_OPENBSD)
+static const rlim_t kSystemDefaultMaxFds = 256;
+#elif defined(OS_ANDROID)
+static const rlim_t kSystemDefaultMaxFds = 1024;
+#elif defined(OS_AIX)
+static const rlim_t kSystemDefaultMaxFds = 8192;
+#endif
+
+size_t GetMaxFds() {
+  rlim_t max_fds;
+  struct rlimit nofile;
+  if (getrlimit(RLIMIT_NOFILE, &nofile)) {
+    // getrlimit failed. Take a best guess.
+    max_fds = kSystemDefaultMaxFds;
+    RAW_LOG(ERROR, "getrlimit(RLIMIT_NOFILE) failed");
+  } else {
+    max_fds = nofile.rlim_cur;
+  }
+
+  if (max_fds > INT_MAX)
+    max_fds = INT_MAX;
+
+  return static_cast<size_t>(max_fds);
+}
+
+size_t GetHandleLimit() {
+#if defined(OS_MACOSX)
+  // Taken from a small test that allocated ports in a loop.
+  return static_cast<size_t>(1 << 18);
+#else
+  return GetMaxFds();
+#endif
+}
+
+void IncreaseFdLimitTo(unsigned int max_descriptors) {
+  struct rlimit limits;
+  if (getrlimit(RLIMIT_NOFILE, &limits) == 0) {
+    unsigned int new_limit = max_descriptors;
+    if (max_descriptors <= limits.rlim_cur)
+      return;
+    if (limits.rlim_max > 0 && limits.rlim_max < max_descriptors) {
+      new_limit = limits.rlim_max;
+    }
+    limits.rlim_cur = new_limit;
+    if (setrlimit(RLIMIT_NOFILE, &limits) != 0) {
+      PLOG(INFO) << "Failed to set file descriptor limit";
+    }
+  } else {
+    PLOG(INFO) << "Failed to get file descriptor limit";
+  }
+}
+
+#endif  // !defined(OS_FUCHSIA)
+
+size_t GetPageSize() {
+  return getpagesize();
+}
+
+size_t ProcessMetrics::GetMallocUsage() {
+#if defined(OS_MACOSX) || defined(OS_IOS)
+  malloc_statistics_t stats = {0};
+  malloc_zone_statistics(nullptr, &stats);
+  return stats.size_in_use;
+#elif defined(OS_LINUX) || defined(OS_ANDROID)
+  struct mallinfo minfo = mallinfo();
+#if BUILDFLAG(USE_TCMALLOC)
+  return minfo.uordblks;
+#else
+  return minfo.hblkhd + minfo.arena;
+#endif
+#elif defined(OS_FUCHSIA)
+  // TODO(fuchsia): Not currently exposed. https://crbug.com/735087.
+  return 0;
+#endif
+}
+
+}  // namespace base