1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/base/dir_reader_bsd.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +// Copyright (c) 2010 The Chromium Authors. All rights reserved.
1.5 +// Use of this source code is governed by a BSD-style license that can be
1.6 +// found in the LICENSE file.
1.7 +
1.8 +// derived from dir_reader_linux.h
1.9 +
1.10 +#ifndef BASE_DIR_READER_BSD_H_
1.11 +#define BASE_DIR_READER_BSD_H_
1.12 +#pragma once
1.13 +
1.14 +#include <dirent.h>
1.15 +#include <errno.h>
1.16 +#include <fcntl.h>
1.17 +#include <stdint.h>
1.18 +#include <unistd.h>
1.19 +
1.20 +#include "base/logging.h"
1.21 +#include "base/eintr_wrapper.h"
1.22 +
1.23 +// See the comments in dir_reader_posix.h about this.
1.24 +
1.25 +namespace base {
1.26 +
1.27 +class DirReaderBSD {
1.28 + public:
1.29 + explicit DirReaderBSD(const char* directory_path)
1.30 +#ifdef O_DIRECTORY
1.31 + : fd_(open(directory_path, O_RDONLY | O_DIRECTORY)),
1.32 +#else
1.33 + : fd_(open(directory_path, O_RDONLY)),
1.34 +#endif
1.35 + offset_(0),
1.36 + size_(0) {
1.37 + memset(buf_, 0, sizeof(buf_));
1.38 + }
1.39 +
1.40 + ~DirReaderBSD() {
1.41 + if (fd_ >= 0) {
1.42 + if (HANDLE_EINTR(close(fd_)))
1.43 + DLOG(ERROR) << "Failed to close directory handle";
1.44 + }
1.45 + }
1.46 +
1.47 + bool IsValid() const {
1.48 + return fd_ >= 0;
1.49 + }
1.50 +
1.51 + // Move to the next entry returning false if the iteration is complete.
1.52 + bool Next() {
1.53 + if (size_) {
1.54 + struct dirent* dirent = reinterpret_cast<struct dirent*>(&buf_[offset_]);
1.55 +#ifdef OS_DRAGONFLY
1.56 + offset_ += _DIRENT_DIRSIZ(dirent);
1.57 +#else
1.58 + offset_ += dirent->d_reclen;
1.59 +#endif
1.60 + }
1.61 +
1.62 + if (offset_ != size_)
1.63 + return true;
1.64 +
1.65 + const int r = getdents(fd_, buf_, sizeof(buf_));
1.66 + if (r == 0)
1.67 + return false;
1.68 + if (r == -1) {
1.69 + DLOG(ERROR) << "getdents returned an error: " << errno;
1.70 + return false;
1.71 + }
1.72 + size_ = r;
1.73 + offset_ = 0;
1.74 + return true;
1.75 + }
1.76 +
1.77 + const char* name() const {
1.78 + if (!size_)
1.79 + return NULL;
1.80 +
1.81 + const struct dirent* dirent =
1.82 + reinterpret_cast<const struct dirent*>(&buf_[offset_]);
1.83 + return dirent->d_name;
1.84 + }
1.85 +
1.86 + int fd() const {
1.87 + return fd_;
1.88 + }
1.89 +
1.90 + static bool IsFallback() {
1.91 + return false;
1.92 + }
1.93 +
1.94 + private:
1.95 + const int fd_;
1.96 + char buf_[512];
1.97 + size_t offset_, size_;
1.98 +
1.99 + DISALLOW_COPY_AND_ASSIGN(DirReaderBSD);
1.100 +};
1.101 +
1.102 +} // namespace base
1.103 +
1.104 +#endif // BASE_DIR_READER_BSD_H_
