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//===-- FDReader.cpp ------------------------------------------------------===//
//
// 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 "FDReader.h"
#include "llvm/Support/MemoryBuffer.h"
#include <cassert>
#include <cstring>
#include <unistd.h>
namespace __llvm_libc {
namespace testutils {
FDReader::FDReader() {
if (::pipe(pipefd))
llvm::report_fatal_error("pipe(2) failed");
}
FDReader::~FDReader() {
::close(pipefd[0]);
::close(pipefd[1]);
}
bool FDReader::matchWritten(const char *str) {
llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> bufOrErr =
llvm::MemoryBuffer::getOpenFile(pipefd[0], "<pipe>",
/* FileSize (irrelevant) */ 0);
if (!bufOrErr) {
assert(0 && "Error reading from pipe");
return false;
}
const llvm::MemoryBuffer &buf = **bufOrErr;
return !std::strncmp(buf.getBufferStart(), str, buf.getBufferSize());
}
} // namespace testutils
} // namespace __llvm_libc
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