diff options
author | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
---|---|---|
committer | Dimitry Andric <dim@FreeBSD.org> | 2019-12-20 19:53:05 +0000 |
commit | 0b57cec536236d46e3dba9bd041533462f33dbb7 (patch) | |
tree | 56229dbdbbf76d18580f72f789003db17246c8d9 /contrib/llvm-project/llvm/lib/Support/Program.cpp | |
parent | 718ef55ec7785aae63f98f8ca05dc07ed399c16d (diff) |
Notes
Diffstat (limited to 'contrib/llvm-project/llvm/lib/Support/Program.cpp')
-rw-r--r-- | contrib/llvm-project/llvm/lib/Support/Program.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/Support/Program.cpp b/contrib/llvm-project/llvm/lib/Support/Program.cpp new file mode 100644 index 000000000000..0a9363c59fc6 --- /dev/null +++ b/contrib/llvm-project/llvm/lib/Support/Program.cpp @@ -0,0 +1,82 @@ +//===-- Program.cpp - Implement OS Program Concept --------------*- C++ -*-===// +// +// 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 +// +//===----------------------------------------------------------------------===// +// +// This file implements the operating system Program concept. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/Program.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/Config/llvm-config.h" +#include <system_error> +using namespace llvm; +using namespace sys; + +//===----------------------------------------------------------------------===// +//=== WARNING: Implementation here must contain only TRULY operating system +//=== independent code. +//===----------------------------------------------------------------------===// + +static bool Execute(ProcessInfo &PI, StringRef Program, + ArrayRef<StringRef> Args, Optional<ArrayRef<StringRef>> Env, + ArrayRef<Optional<StringRef>> Redirects, + unsigned MemoryLimit, std::string *ErrMsg); + +int sys::ExecuteAndWait(StringRef Program, ArrayRef<StringRef> Args, + Optional<ArrayRef<StringRef>> Env, + ArrayRef<Optional<StringRef>> Redirects, + unsigned SecondsToWait, unsigned MemoryLimit, + std::string *ErrMsg, bool *ExecutionFailed) { + assert(Redirects.empty() || Redirects.size() == 3); + ProcessInfo PI; + if (Execute(PI, Program, Args, Env, Redirects, MemoryLimit, ErrMsg)) { + if (ExecutionFailed) + *ExecutionFailed = false; + ProcessInfo Result = Wait( + PI, SecondsToWait, /*WaitUntilTerminates=*/SecondsToWait == 0, ErrMsg); + return Result.ReturnCode; + } + + if (ExecutionFailed) + *ExecutionFailed = true; + + return -1; +} + +ProcessInfo sys::ExecuteNoWait(StringRef Program, ArrayRef<StringRef> Args, + Optional<ArrayRef<StringRef>> Env, + ArrayRef<Optional<StringRef>> Redirects, + unsigned MemoryLimit, std::string *ErrMsg, + bool *ExecutionFailed) { + assert(Redirects.empty() || Redirects.size() == 3); + ProcessInfo PI; + if (ExecutionFailed) + *ExecutionFailed = false; + if (!Execute(PI, Program, Args, Env, Redirects, MemoryLimit, ErrMsg)) + if (ExecutionFailed) + *ExecutionFailed = true; + + return PI; +} + +bool sys::commandLineFitsWithinSystemLimits(StringRef Program, + ArrayRef<const char *> Args) { + SmallVector<StringRef, 8> StringRefArgs; + StringRefArgs.reserve(Args.size()); + for (const char *A : Args) + StringRefArgs.emplace_back(A); + return commandLineFitsWithinSystemLimits(Program, StringRefArgs); +} + +// Include the platform-specific parts of this class. +#ifdef LLVM_ON_UNIX +#include "Unix/Program.inc" +#endif +#ifdef _WIN32 +#include "Windows/Program.inc" +#endif |