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content / common / shared_file_util.h [blame]
// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_COMMON_SHARED_FILE_UTIL_H_
#define CONTENT_COMMON_SHARED_FILE_UTIL_H_
#include <map>
#include <optional>
#include <string>
#include "base/command_line.h"
#include "base/component_export.h"
namespace content {
// Populates the global instance of base::FileDescriptorStore using the
// information from the command line, assuming base::GlobalDescriptors has been
// initialized to hold the dynamically-generated descriptors (e.g. as happens in
// the zygote).
void PopulateFileDescriptorStoreFromGlobalDescriptors();
// Similar to PopulateFileDescriptorStoreFromGlobalDescriptors(), this will
// populate the global instance of base::FileDescriptorStore, but takes the FDs
// directly from the FD table, using the default FD numbers (i.e. descriptor_id
// + base::GlobalDescriptors::kBaseDescriptor). On Posix systems, exec'd
// processes should use this instead of
// PopulateFileDescriptorStoreFromGlobalDescriptors().
void PopulateFileDescriptorStoreFromFdTable();
class SharedFileSwitchValueBuilder final {
public:
void AddEntry(const std::string& key_str, int key_id);
const std::string& switch_value() const { return switch_value_; }
private:
std::string switch_value_;
};
std::optional<std::map<int, std::string>> ParseSharedFileSwitchValue(
const std::string& value);
} // namespace content
#endif // CONTENT_COMMON_SHARED_FILE_UTIL_H_