6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
96 lines
3.2 KiB
C++
96 lines
3.2 KiB
C++
//===-- PipePosix.h ---------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLDB_HOST_POSIX_PIPEPOSIX_H
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#define LLDB_HOST_POSIX_PIPEPOSIX_H
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#include "lldb/Host/PipeBase.h"
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#include <mutex>
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namespace lldb_private {
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/// \class PipePosix PipePosix.h "lldb/Host/posix/PipePosix.h"
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/// A posix-based implementation of Pipe, a class that abtracts
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/// unix style pipes.
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///
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/// A class that abstracts the LLDB core from host pipe functionality.
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class PipePosix : public PipeBase {
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public:
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static int kInvalidDescriptor;
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PipePosix();
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PipePosix(lldb::pipe_t read, lldb::pipe_t write);
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PipePosix(const PipePosix &) = delete;
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PipePosix(PipePosix &&pipe_posix);
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PipePosix &operator=(const PipePosix &) = delete;
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PipePosix &operator=(PipePosix &&pipe_posix);
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~PipePosix() override;
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Status CreateNew(bool child_process_inherit) override;
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Status CreateNew(llvm::StringRef name, bool child_process_inherit) override;
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Status CreateWithUniqueName(llvm::StringRef prefix,
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bool child_process_inherit,
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llvm::SmallVectorImpl<char> &name) override;
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Status OpenAsReader(llvm::StringRef name,
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bool child_process_inherit) override;
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Status
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OpenAsWriterWithTimeout(llvm::StringRef name, bool child_process_inherit,
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const std::chrono::microseconds &timeout) override;
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bool CanRead() const override;
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bool CanWrite() const override;
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lldb::pipe_t GetReadPipe() const override {
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return lldb::pipe_t(GetReadFileDescriptor());
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}
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lldb::pipe_t GetWritePipe() const override {
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return lldb::pipe_t(GetWriteFileDescriptor());
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}
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int GetReadFileDescriptor() const override;
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int GetWriteFileDescriptor() const override;
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int ReleaseReadFileDescriptor() override;
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int ReleaseWriteFileDescriptor() override;
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void CloseReadFileDescriptor() override;
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void CloseWriteFileDescriptor() override;
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// Close both descriptors
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void Close() override;
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Status Delete(llvm::StringRef name) override;
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Status WriteWithTimeout(const void *buf, size_t size,
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const std::chrono::microseconds &timeout,
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size_t &bytes_written) override;
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Status ReadWithTimeout(void *buf, size_t size,
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const std::chrono::microseconds &timeout,
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size_t &bytes_read) override;
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private:
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bool CanReadUnlocked() const;
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bool CanWriteUnlocked() const;
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int GetReadFileDescriptorUnlocked() const;
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int GetWriteFileDescriptorUnlocked() const;
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int ReleaseReadFileDescriptorUnlocked();
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int ReleaseWriteFileDescriptorUnlocked();
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void CloseReadFileDescriptorUnlocked();
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void CloseWriteFileDescriptorUnlocked();
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void CloseUnlocked();
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int m_fds[2];
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/// Mutexes for m_fds;
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mutable std::mutex m_read_mutex;
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mutable std::mutex m_write_mutex;
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};
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} // namespace lldb_private
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#endif // LLDB_HOST_POSIX_PIPEPOSIX_H
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