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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
76 lines
2.3 KiB
C++
76 lines
2.3 KiB
C++
//===-- RemoteJITUtils.h - Utilities for remote-JITing with LLI -*- 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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//
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// Utilities for remote-JITing with LLI.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLI_REMOTEJITUTILS_H
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#define LLVM_TOOLS_LLI_REMOTEJITUTILS_H
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#include "llvm/ExecutionEngine/Orc/RawByteChannel.h"
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#include "llvm/Support/Error.h"
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#include <cassert>
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#include <cerrno>
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#include <system_error>
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#if !defined(_MSC_VER) && !defined(__MINGW32__)
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#include <unistd.h>
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#else
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#include <io.h>
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#endif
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/// RPC channel that reads from and writes from file descriptors.
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class FDRPCChannel final : public llvm::orc::rpc::RawByteChannel {
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public:
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FDRPCChannel(int InFD, int OutFD) : InFD(InFD), OutFD(OutFD) {}
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llvm::Error readBytes(char *Dst, unsigned Size) override {
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assert(Dst && "Attempt to read into null.");
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ssize_t Completed = 0;
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while (Completed < static_cast<ssize_t>(Size)) {
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ssize_t Read = ::read(InFD, Dst + Completed, Size - Completed);
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if (Read <= 0) {
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auto ErrNo = errno;
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if (ErrNo == EAGAIN || ErrNo == EINTR)
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continue;
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else
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return llvm::errorCodeToError(
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std::error_code(errno, std::generic_category()));
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}
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Completed += Read;
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}
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return llvm::Error::success();
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}
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llvm::Error appendBytes(const char *Src, unsigned Size) override {
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assert(Src && "Attempt to append from null.");
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ssize_t Completed = 0;
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while (Completed < static_cast<ssize_t>(Size)) {
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ssize_t Written = ::write(OutFD, Src + Completed, Size - Completed);
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if (Written < 0) {
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auto ErrNo = errno;
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if (ErrNo == EAGAIN || ErrNo == EINTR)
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continue;
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else
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return llvm::errorCodeToError(
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std::error_code(errno, std::generic_category()));
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}
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Completed += Written;
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}
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return llvm::Error::success();
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}
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llvm::Error send() override { return llvm::Error::success(); }
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private:
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int InFD, OutFD;
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};
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#endif // LLVM_TOOLS_LLI_REMOTEJITUTILS_H
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