Repo created

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

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+// 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_iterator.h"
+#include "build/build_config.h"
+
+namespace base {
+
+#if defined(OS_POSIX) || defined(OS_FUCHSIA)
+ProcessEntry::ProcessEntry() : pid_(0), ppid_(0), gid_(0) {}
+ProcessEntry::ProcessEntry(const ProcessEntry& other) = default;
+ProcessEntry::~ProcessEntry() = default;
+#endif
+
+const ProcessEntry* ProcessIterator::NextProcessEntry() {
+  bool result = false;
+  do {
+    result = CheckForNextProcess();
+  } while (result && !IncludeEntry());
+  if (result)
+    return &entry_;
+  return nullptr;
+}
+
+ProcessIterator::ProcessEntries ProcessIterator::Snapshot() {
+  ProcessEntries found;
+  while (const ProcessEntry* process_entry = NextProcessEntry()) {
+    found.push_back(*process_entry);
+  }
+  return found;
+}
+
+bool ProcessIterator::IncludeEntry() {
+  return !filter_ || filter_->Includes(entry_);
+}
+
+NamedProcessIterator::NamedProcessIterator(
+    const FilePath::StringType& executable_name,
+    const ProcessFilter* filter) : ProcessIterator(filter),
+                                   executable_name_(executable_name) {
+#if defined(OS_ANDROID)
+  // On Android, the process name contains only the last 15 characters, which
+  // is in file /proc/<pid>/stat, the string between open parenthesis and close
+  // parenthesis. Please See ProcessIterator::CheckForNextProcess for details.
+  // Now if the length of input process name is greater than 15, only save the
+  // last 15 characters.
+  if (executable_name_.size() > 15) {
+    executable_name_ = FilePath::StringType(executable_name_,
+                                            executable_name_.size() - 15, 15);
+  }
+#endif
+}
+
+NamedProcessIterator::~NamedProcessIterator() = default;
+
+int GetProcessCount(const FilePath::StringType& executable_name,
+                    const ProcessFilter* filter) {
+  int count = 0;
+  NamedProcessIterator iter(executable_name, filter);
+  while (iter.NextProcessEntry())
+    ++count;
+  return count;
+}
+
+}  // namespace base