/*
- * Copyright 2012 Facebook, Inc.
+ * Copyright 2017 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* limitations under the License.
*/
-#include "folly/experimental/TestUtil.h"
+#include <folly/experimental/TestUtil.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <stdexcept>
-#include <system_error>
+#include <sys/stat.h>
+#include <sys/types.h>
-#include "folly/Format.h"
+#include <boost/regex.hpp>
+
+#include <folly/Exception.h>
+#include <folly/File.h>
+#include <folly/FileUtil.h>
+#include <folly/Memory.h>
+#include <folly/String.h>
+#include <folly/portability/Fcntl.h>
+
+#ifdef _WIN32
+#include <crtdbg.h> // @manual
+#endif
namespace folly {
namespace test {
-TemporaryFile::TemporaryFile(const char* prefix, Scope scope,
- bool closeOnDestruction)
- : scope_(scope),
- closeOnDestruction_(closeOnDestruction) {
- static const char* suffix = ".XXXXXX"; // per mkstemp(3)
- if (!prefix || prefix[0] == '\0') {
- prefix = "temp";
+namespace {
+
+fs::path generateUniquePath(fs::path path, StringPiece namePrefix) {
+ if (path.empty()) {
+ path = fs::temp_directory_path();
}
- const char* dir = nullptr;
- if (!strchr(prefix, '/')) {
- // Not a full path, try getenv("TMPDIR") or "/tmp"
- dir = getenv("TMPDIR");
- if (!dir) {
- dir = "/tmp";
- }
- // The "!" is a placeholder to ensure that &(path[0]) is null-terminated.
- // This is the only standard-compliant way to get at a null-terminated
- // non-const char string inside a std::string: put the null-terminator
- // yourself.
- path_ = format("{}/{}{}!", dir, prefix, suffix).str();
+ if (namePrefix.empty()) {
+ path /= fs::unique_path();
} else {
- path_ = format("{}{}!", prefix, suffix).str();
+ path /= fs::unique_path(
+ to<std::string>(namePrefix, ".%%%%-%%%%-%%%%-%%%%"));
}
+ return path;
+}
- // Replace the '!' with a null terminator, we'll get rid of it later
- path_[path_.size() - 1] = '\0';
-
- fd_ = mkstemp(&(path_[0]));
- if (fd_ == -1) {
- throw std::system_error(errno, std::system_category(),
- format("mkstemp failed: {}", path_).str().c_str());
- }
+} // namespace
- DCHECK_EQ(path_[path_.size() - 1], '\0');
- path_.erase(path_.size() - 1);
+TemporaryFile::TemporaryFile(StringPiece namePrefix,
+ fs::path dir,
+ Scope scope,
+ bool closeOnDestruction)
+ : scope_(scope),
+ closeOnDestruction_(closeOnDestruction),
+ fd_(-1),
+ path_(generateUniquePath(std::move(dir), namePrefix)) {
+ fd_ = open(path_.string().c_str(), O_RDWR | O_CREAT | O_EXCL, 0666);
+ checkUnixError(fd_, "open failed");
if (scope_ == Scope::UNLINK_IMMEDIATELY) {
- if (unlink(path_.c_str()) == -1) {
- throw std::system_error(errno, std::system_category(),
- format("unlink failed: {}", path_).str().c_str());
+ boost::system::error_code ec;
+ fs::remove(path_, ec);
+ if (ec) {
+ LOG(WARNING) << "unlink on construction failed: " << ec;
+ } else {
+ path_.clear();
}
- path_.clear(); // path no longer available or meaningful
}
}
-const std::string& TemporaryFile::path() const {
+void TemporaryFile::close() {
+ if (::close(fd_) == -1) {
+ PLOG(ERROR) << "close failed";
+ }
+ fd_ = -1;
+}
+
+const fs::path& TemporaryFile::path() const {
CHECK(scope_ != Scope::UNLINK_IMMEDIATELY);
DCHECK(!path_.empty());
return path_;
}
-TemporaryFile::~TemporaryFile() {
+void TemporaryFile::reset() {
if (fd_ != -1 && closeOnDestruction_) {
- if (close(fd_) == -1) {
- PLOG(ERROR) << "close failed";
+ if (::close(fd_) == -1) {
+ PLOG(ERROR) << "close failed (fd = " << fd_ << "): ";
}
}
// If we previously failed to unlink() (UNLINK_IMMEDIATELY), we'll
// try again here.
if (scope_ != Scope::PERMANENT && !path_.empty()) {
- if (unlink(path_.c_str()) == -1) {
- PLOG(ERROR) << "unlink(" << path_ << ") failed";
+ boost::system::error_code ec;
+ fs::remove(path_, ec);
+ if (ec) {
+ LOG(WARNING) << "unlink on destruction failed: " << ec;
}
}
}
-} // namespace test
-} // namespace folly
+TemporaryFile::~TemporaryFile() {
+ reset();
+}
+
+TemporaryDirectory::TemporaryDirectory(
+ StringPiece namePrefix,
+ fs::path dir,
+ Scope scope)
+ : scope_(scope),
+ path_(std::make_unique<fs::path>(
+ generateUniquePath(std::move(dir), namePrefix))) {
+ fs::create_directory(path());
+}
+
+TemporaryDirectory::~TemporaryDirectory() {
+ if (scope_ == Scope::DELETE_ON_DESTRUCTION && path_ != nullptr) {
+ boost::system::error_code ec;
+ fs::remove_all(path(), ec);
+ if (ec) {
+ LOG(WARNING) << "recursive delete on destruction failed: " << ec;
+ }
+ }
+}
+
+ChangeToTempDir::ChangeToTempDir() {
+ orig_ = fs::current_path();
+ fs::current_path(path());
+}
+
+ChangeToTempDir::~ChangeToTempDir() {
+ if (!orig_.empty()) {
+ fs::current_path(orig_);
+ }
+}
+
+namespace detail {
+
+SavedState disableInvalidParameters() {
+#ifdef _WIN32
+ SavedState ret;
+ ret.previousThreadLocalHandler = _set_thread_local_invalid_parameter_handler(
+ [](const wchar_t*,
+ const wchar_t*,
+ const wchar_t*,
+ unsigned int,
+ uintptr_t) {});
+ ret.previousCrtReportMode = _CrtSetReportMode(_CRT_ASSERT, 0);
+ return ret;
+#else
+ return SavedState();
+#endif
+}
+
+#ifdef _WIN32
+void enableInvalidParameters(SavedState state) {
+ _set_thread_local_invalid_parameter_handler(
+ (_invalid_parameter_handler)state.previousThreadLocalHandler);
+ _CrtSetReportMode(_CRT_ASSERT, state.previousCrtReportMode);
+}
+#else
+void enableInvalidParameters(SavedState) {}
+#endif
+
+bool hasPCREPatternMatch(StringPiece pattern, StringPiece target) {
+ return boost::regex_match(
+ target.begin(),
+ target.end(),
+ boost::regex(pattern.begin(), pattern.end())
+ );
+}
+
+bool hasNoPCREPatternMatch(StringPiece pattern, StringPiece target) {
+ return !hasPCREPatternMatch(pattern, target);
+}
+
+} // namespace detail
+
+CaptureFD::CaptureFD(int fd, ChunkCob chunk_cob)
+ : chunkCob_(std::move(chunk_cob)), fd_(fd), readOffset_(0) {
+ oldFDCopy_ = dup(fd_);
+ PCHECK(oldFDCopy_ != -1) << "Could not copy FD " << fd_;
+
+ int file_fd = open(file_.path().string().c_str(), O_WRONLY|O_CREAT, 0600);
+ PCHECK(dup2(file_fd, fd_) != -1) << "Could not replace FD " << fd_
+ << " with " << file_fd;
+ PCHECK(close(file_fd) != -1) << "Could not close " << file_fd;
+}
+
+void CaptureFD::release() {
+ if (oldFDCopy_ != fd_) {
+ readIncremental(); // Feed chunkCob_
+ PCHECK(dup2(oldFDCopy_, fd_) != -1) << "Could not restore old FD "
+ << oldFDCopy_ << " into " << fd_;
+ PCHECK(close(oldFDCopy_) != -1) << "Could not close " << oldFDCopy_;
+ oldFDCopy_ = fd_; // Make this call idempotent
+ }
+}
+
+CaptureFD::~CaptureFD() {
+ release();
+}
+
+std::string CaptureFD::read() const {
+ std::string contents;
+ std::string filename = file_.path().string();
+ PCHECK(folly::readFile(filename.c_str(), contents));
+ return contents;
+}
+
+std::string CaptureFD::readIncremental() {
+ std::string filename = file_.path().string();
+ // Yes, I know that I could just keep the file open instead. So sue me.
+ folly::File f(openNoInt(filename.c_str(), O_RDONLY), true);
+ auto size = size_t(lseek(f.fd(), 0, SEEK_END) - readOffset_);
+ std::unique_ptr<char[]> buf(new char[size]);
+ auto bytes_read = folly::preadFull(f.fd(), buf.get(), size, readOffset_);
+ PCHECK(ssize_t(size) == bytes_read);
+ readOffset_ += off_t(size);
+ chunkCob_(StringPiece(buf.get(), buf.get() + size));
+ return std::string(buf.get(), size);
+}
+
+} // namespace test
+} // namespace folly
projects / folly.git / blobdiff