================ @@ -0,0 +1,257 @@ +//===- llvm/Support/Jobserver.cpp - Jobserver Client Implementation -------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/Jobserver.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/Statistic.h" +#include "llvm/Config/llvm-config.h" +#include "llvm/Support/Debug.h" +#include "llvm/Support/Error.h" +#include "llvm/Support/raw_ostream.h" + +#include <atomic> +#include <memory> +#include <mutex> +#include <new> + +#define DEBUG_TYPE "jobserver" + +using namespace llvm; + +namespace { +struct JobserverConfig { + enum Mode { + None, + PosixFifo, + PosixPipe, + Win32Semaphore, + }; + Mode TheMode = None; + std::string Path; + int ReadFD = -1; + int WriteFD = -1; +}; + +/// A helper function that checks if `Input` starts with `Prefix`. +/// If it does, it removes the prefix from `Input`, assigns the remainder to +/// `Value`, and returns true. Otherwise, it returns false. +bool getPrefixedValue(StringRef Input, StringRef Prefix, StringRef &Value) { + if (Input.consume_front(Prefix)) { + Value = Input; + return true; + } + return false; +} + +/// A helper function to parse a string in the format "R,W" where R and W are +/// non-negative integers representing file descriptors. It populates the +/// `ReadFD` and `WriteFD` output parameters. Returns true on success. +bool getFileDescriptorPair(StringRef Input, int &ReadFD, int &WriteFD) { ---------------- Artem-B wrote:
Returning `optional<pair<int, int>>` might work well here. https://github.com/llvm/llvm-project/pull/145131 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
