75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
// Copyright 2017 Google LLC. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file or at
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// https://developers.google.com/open-source/licenses/bsd
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#include <packager/file/callback_file.h>
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#include <glog/logging.h>
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#include <packager/macros.h>
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namespace shaka {
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CallbackFile::CallbackFile(const char* file_name, const char* mode)
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: File(file_name), file_mode_(mode) {}
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CallbackFile::~CallbackFile() {}
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bool CallbackFile::Close() {
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delete this;
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return true;
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}
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int64_t CallbackFile::Read(void* buffer, uint64_t length) {
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if (!callback_params_->read_func) {
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LOG(ERROR) << "Read function not defined.";
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return -1;
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}
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return callback_params_->read_func(name_, buffer, length);
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}
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int64_t CallbackFile::Write(const void* buffer, uint64_t length) {
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if (!callback_params_->write_func) {
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LOG(ERROR) << "Write function not defined.";
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return -1;
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}
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return callback_params_->write_func(name_, buffer, length);
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}
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void CallbackFile::CloseForWriting() {}
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int64_t CallbackFile::Size() {
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LOG(INFO) << "CallbackFile does not support Size().";
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return -1;
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}
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bool CallbackFile::Flush() {
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// Do nothing on Flush.
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return true;
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}
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bool CallbackFile::Seek(uint64_t position) {
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UNUSED(position);
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VLOG(1) << "CallbackFile does not support Seek().";
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return false;
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}
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bool CallbackFile::Tell(uint64_t* position) {
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UNUSED(position);
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VLOG(1) << "CallbackFile does not support Tell().";
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return false;
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}
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bool CallbackFile::Open() {
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if (file_mode_ != "r" && file_mode_ != "w" && file_mode_ != "rb" &&
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file_mode_ != "wb") {
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LOG(ERROR) << "CallbackFile does not support file mode " << file_mode_;
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return false;
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}
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return ParseCallbackFileName(file_name(), &callback_params_, &name_);
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}
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} // namespace shaka
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