5793c84925
Summary: Adds `write` for Linux and FDReader utility which should be useful for some stdio tests as well. Reviewers: sivachandra, PaulkaToast Reviewed By: sivachandra Subscribers: mgorny, tschuett, libc-commits Differential Revision: https://reviews.llvm.org/D78184
42 lines
1.2 KiB
C++
42 lines
1.2 KiB
C++
//===-- FDReader.cpp ------------------------------------------------------===//
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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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#include "FDReader.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include <cassert>
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#include <cstring>
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#include <unistd.h>
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namespace __llvm_libc {
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namespace testutils {
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FDReader::FDReader() {
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int err = ::pipe(pipefd);
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assert(!err && "pipe(2) failed");
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}
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FDReader::~FDReader() {
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::close(pipefd[0]);
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::close(pipefd[1]);
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}
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bool FDReader::matchWritten(const char *str) {
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llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> bufOrErr =
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llvm::MemoryBuffer::getOpenFile(pipefd[0], "<pipe>",
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/* FileSize (irrelevant) */ 0);
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if (!bufOrErr) {
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assert(0 && "Error reading from pipe");
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return false;
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}
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const llvm::MemoryBuffer &buf = **bufOrErr;
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return !std::strncmp(buf.getBufferStart(), str, buf.getBufferSize());
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}
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} // namespace testutils
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} // namespace __llvm_libc
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