diff options
Diffstat (limited to 'webrtc/system_wrappers/source/file_impl.cc')
| -rw-r--r-- | webrtc/system_wrappers/source/file_impl.cc | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/webrtc/system_wrappers/source/file_impl.cc b/webrtc/system_wrappers/source/file_impl.cc deleted file mode 100644 index 0ee0dea..0000000 --- a/webrtc/system_wrappers/source/file_impl.cc +++ /dev/null @@ -1,278 +0,0 @@ -/* - * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. An additional intellectual property rights grant can be found - * in the file PATENTS. All contributing project authors may - * be found in the AUTHORS file in the root of the source tree. - */ - -#include "webrtc/system_wrappers/source/file_impl.h" - -#include <assert.h> - -#ifdef _WIN32 -#include <Windows.h> -#else -#include <stdarg.h> -#include <string.h> -#endif - -#include "webrtc/base/checks.h" -#include "webrtc/system_wrappers/include/rw_lock_wrapper.h" - -namespace webrtc { - -FileWrapper* FileWrapper::Create() { - return new FileWrapperImpl(); -} - -FileWrapperImpl::FileWrapperImpl() - : rw_lock_(RWLockWrapper::CreateRWLock()), - id_(NULL), - managed_file_handle_(true), - open_(false), - looping_(false), - read_only_(false), - max_size_in_bytes_(0), - size_in_bytes_(0) { - memset(file_name_utf8_, 0, kMaxFileNameSize); -} - -FileWrapperImpl::~FileWrapperImpl() { - if (id_ != NULL && managed_file_handle_) { - fclose(id_); - } -} - -int FileWrapperImpl::CloseFile() { - WriteLockScoped write(*rw_lock_); - return CloseFileImpl(); -} - -int FileWrapperImpl::Rewind() { - WriteLockScoped write(*rw_lock_); - if (looping_ || !read_only_) { - if (id_ != NULL) { - size_in_bytes_ = 0; - return fseek(id_, 0, SEEK_SET); - } - } - return -1; -} - -int FileWrapperImpl::SetMaxFileSize(size_t bytes) { - WriteLockScoped write(*rw_lock_); - max_size_in_bytes_ = bytes; - return 0; -} - -int FileWrapperImpl::Flush() { - WriteLockScoped write(*rw_lock_); - return FlushImpl(); -} - -int FileWrapperImpl::FileName(char* file_name_utf8, size_t size) const { - ReadLockScoped read(*rw_lock_); - size_t length = strlen(file_name_utf8_); - if (length > kMaxFileNameSize) { - assert(false); - return -1; - } - if (length < 1) { - return -1; - } - - // Make sure to NULL terminate - if (size < length) { - length = size - 1; - } - memcpy(file_name_utf8, file_name_utf8_, length); - file_name_utf8[length] = 0; - return 0; -} - -bool FileWrapperImpl::Open() const { - ReadLockScoped read(*rw_lock_); - return open_; -} - -int FileWrapperImpl::OpenFile(const char* file_name_utf8, bool read_only, - bool loop, bool text) { - WriteLockScoped write(*rw_lock_); - if (id_ != NULL && !managed_file_handle_) - return -1; - size_t length = strlen(file_name_utf8); - if (length > kMaxFileNameSize - 1) { - return -1; - } - - read_only_ = read_only; - - FILE* tmp_id = NULL; -#if defined _WIN32 - wchar_t wide_file_name[kMaxFileNameSize]; - wide_file_name[0] = 0; - - MultiByteToWideChar(CP_UTF8, - 0, // UTF8 flag - file_name_utf8, - -1, // Null terminated string - wide_file_name, - kMaxFileNameSize); - if (text) { - if (read_only) { - tmp_id = _wfopen(wide_file_name, L"rt"); - } else { - tmp_id = _wfopen(wide_file_name, L"wt"); - } - } else { - if (read_only) { - tmp_id = _wfopen(wide_file_name, L"rb"); - } else { - tmp_id = _wfopen(wide_file_name, L"wb"); - } - } -#else - if (text) { - if (read_only) { - tmp_id = fopen(file_name_utf8, "rt"); - } else { - tmp_id = fopen(file_name_utf8, "wt"); - } - } else { - if (read_only) { - tmp_id = fopen(file_name_utf8, "rb"); - } else { - tmp_id = fopen(file_name_utf8, "wb"); - } - } -#endif - - if (tmp_id != NULL) { - // +1 comes from copying the NULL termination character. - memcpy(file_name_utf8_, file_name_utf8, length + 1); - if (id_ != NULL) { - fclose(id_); - } - id_ = tmp_id; - managed_file_handle_ = true; - looping_ = loop; - open_ = true; - return 0; - } - return -1; -} - -int FileWrapperImpl::OpenFromFileHandle(FILE* handle, - bool manage_file, - bool read_only, - bool loop) { - WriteLockScoped write(*rw_lock_); - if (!handle) - return -1; - - if (id_ != NULL) { - if (managed_file_handle_) - fclose(id_); - else - return -1; - } - - id_ = handle; - managed_file_handle_ = manage_file; - read_only_ = read_only; - looping_ = loop; - open_ = true; - return 0; -} - -int FileWrapperImpl::Read(void* buf, size_t length) { - WriteLockScoped write(*rw_lock_); - if (id_ == NULL) - return -1; - - size_t bytes_read = fread(buf, 1, length, id_); - if (bytes_read != length && !looping_) { - CloseFileImpl(); - } - return static_cast<int>(bytes_read); -} - -int FileWrapperImpl::WriteText(const char* format, ...) { - WriteLockScoped write(*rw_lock_); - if (format == NULL) - return -1; - - if (read_only_) - return -1; - - if (id_ == NULL) - return -1; - - va_list args; - va_start(args, format); - int num_chars = vfprintf(id_, format, args); - va_end(args); - - if (num_chars >= 0) { - return num_chars; - } else { - CloseFileImpl(); - return -1; - } -} - -bool FileWrapperImpl::Write(const void* buf, size_t length) { - WriteLockScoped write(*rw_lock_); - if (buf == NULL) - return false; - - if (read_only_) - return false; - - if (id_ == NULL) - return false; - - // Check if it's time to stop writing. - if (max_size_in_bytes_ > 0 && - (size_in_bytes_ + length) > max_size_in_bytes_) { - FlushImpl(); - return false; - } - - size_t num_bytes = fwrite(buf, 1, length, id_); - if (num_bytes > 0) { - size_in_bytes_ += num_bytes; - return true; - } - - CloseFileImpl(); - return false; -} - -int FileWrapperImpl::CloseFileImpl() { - if (id_ != NULL) { - if (managed_file_handle_) - fclose(id_); - id_ = NULL; - } - memset(file_name_utf8_, 0, kMaxFileNameSize); - open_ = false; - return 0; -} - -int FileWrapperImpl::FlushImpl() { - if (id_ != NULL) { - return fflush(id_); - } - return -1; -} - -int FileWrapper::Rewind() { - RTC_DCHECK(false); - return -1; -} - -} // namespace webrtc |