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67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef MOJO_DATA_PIPE_UTILS_DATA_PIPE_UTILS_H_
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#define MOJO_DATA_PIPE_UTILS_DATA_PIPE_UTILS_H_
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#include <stdio.h>
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#include <string>
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#include "base/callback_forward.h"
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#include "base/files/scoped_file.h"
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#include "base/threading/platform_thread.h"
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#include "mojo/public/cpp/system/data_pipe.h"
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namespace base {
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class FilePath;
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class TaskRunner;
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}
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namespace mojo {
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namespace common {
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// Asynchronously copies data from source to the destination file. The given
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// |callback| is run upon completion. File writes will be scheduled to the
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// given |task_runner|.
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void CopyToFile(ScopedDataPipeConsumerHandle source,
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const base::FilePath& destination,
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base::TaskRunner* task_runner,
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const base::Callback<void(bool /*success*/)>& callback);
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void CopyFromFile(const base::FilePath& source,
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ScopedDataPipeProducerHandle destination,
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uint32_t skip,
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base::TaskRunner* task_runner,
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const base::Callback<void(bool /*success*/)>& callback);
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// Copies the data from |source| into |contents| and returns true on success and
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// false on error. In case of I/O error, |contents| holds the data that could
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// be read from source before the error occurred.
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bool BlockingCopyToString(ScopedDataPipeConsumerHandle source,
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std::string* contents);
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bool BlockingCopyFromString(const std::string& source,
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const ScopedDataPipeProducerHandle& destination);
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// Synchronously copies source data to a temporary file, returning a file
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// pointer on success and NULL on error. The temporary file is unlinked
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// immediately so that it is only accessible by file pointer (and removed once
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// closed or the creating process dies).
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base::ScopedFILE BlockingCopyToTempFile(ScopedDataPipeConsumerHandle source);
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// Similar to BlockingCopyToTempFile, but use a pre-defined file pointer
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// (rather than a newly created temp file) and do not unlink the file.
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// Returns true on success, false on failure.
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bool BlockingCopyToFile(ScopedDataPipeConsumerHandle source, FILE* fp);
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// Copies the string |contents| to a temporary data pipe and returns the
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// consumer handle.
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ScopedDataPipeConsumerHandle WriteStringToConsumerHandle(
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const std::string& source);
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} // namespace common
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} // namespace mojo
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#endif // MOJO_DATA_PIPE_UTILS_DATA_PIPE_UTILS_H_
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