chromium/base/process/process_iterator_linux.cc

// Copyright 2013 The Chromium Authors
// 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 <stddef.h>

#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/notreached.h"
#include "base/numerics/safe_conversions.h"
#include "base/process/internal_linux.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/threading/thread_restrictions.h"

namespace base {

class ScopedAllowBlockingForProc : public ScopedAllowBlocking { … };

namespace {

// Reads the |field_num|th field from |proc_stats|.
// Returns an empty string on failure.
// This version only handles VM_COMM and VM_STATE, which are the only fields
// that are strings.
std::string GetProcStatsFieldAsString(
    const std::vector<std::string>& proc_stats,
    internal::ProcStatsFields field_num) { … }

// Reads /proc/<pid>/cmdline and populates |proc_cmd_line_args| with the command
// line arguments. Returns true if successful.
// Note: /proc/<pid>/cmdline contains command line arguments separated by single
// null characters. We tokenize it into a vector of strings using '\0' as a
// delimiter.
bool GetProcCmdline(pid_t pid, std::vector<std::string>* proc_cmd_line_args) { … }

}  // namespace

ProcessIterator::ProcessIterator(const ProcessFilter* filter)
    : … { … }

ProcessIterator::~ProcessIterator() = default;

bool ProcessIterator::CheckForNextProcess() { … }

bool NamedProcessIterator::IncludeEntry() { … }

}  // namespace base