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//===-- Program.cpp - Implement OS Program Concept --------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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
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