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Diffstat (limited to 'net/disk_cache/file_posix.cc')
-rw-r--r-- | net/disk_cache/file_posix.cc | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/net/disk_cache/file_posix.cc b/net/disk_cache/file_posix.cc new file mode 100644 index 0000000..297fcab --- /dev/null +++ b/net/disk_cache/file_posix.cc @@ -0,0 +1,125 @@ +// Copyright 2008, Google Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#include "net/disk_cache/file.h" + +#include "base/notimplemented.h" +#include "net/disk_cache/disk_cache.h" + +namespace disk_cache { + +File::File(OSFile file) + : init_(true), os_file_(0) { +} + +bool File::Init(const std::wstring& name) { + NOTIMPLEMENTED(); + return false; +} + +File::~File() { +} + +OSFile File::os_file() const { + return os_file_; +} + +bool File::IsValid() const { + if (!init_) + return false; + return (0 != os_file_); +} + +bool File::Read(void* buffer, size_t buffer_len, size_t offset) { + DCHECK(init_); + if (buffer_len > ULONG_MAX || offset > LONG_MAX) + return false; + + NOTIMPLEMENTED(); + return false; +} + +bool File::Write(const void* buffer, size_t buffer_len, size_t offset) { + DCHECK(init_); + if (buffer_len > ULONG_MAX || offset > ULONG_MAX) + return false; + + NOTIMPLEMENTED(); + return false; +} + +// We have to increase the ref counter of the file before performing the IO to +// prevent the completion to happen with an invalid handle (if the file is +// closed while the IO is in flight). +bool File::Read(void* buffer, size_t buffer_len, size_t offset, + FileIOCallback* callback, bool* completed) { + DCHECK(init_); + if (buffer_len > ULONG_MAX || offset > ULONG_MAX) + return false; + + NOTIMPLEMENTED(); + return false; +} + +bool File::Write(const void* buffer, size_t buffer_len, size_t offset, + FileIOCallback* callback, bool* completed) { + DCHECK(init_); + return AsyncWrite(buffer, buffer_len, offset, true, callback, completed); +} + +bool File::PostWrite(const void* buffer, size_t buffer_len, size_t offset) { + DCHECK(init_); + return AsyncWrite(buffer, buffer_len, offset, false, NULL, NULL); +} + +bool File::AsyncWrite(const void* buffer, size_t buffer_len, size_t offset, + bool notify, FileIOCallback* callback, bool* completed) { + DCHECK(init_); + if (buffer_len > ULONG_MAX || offset > ULONG_MAX) + return false; + + NOTIMPLEMENTED(); + return false; +} + +bool File::SetLength(size_t length) { + DCHECK(init_); + if (length > ULONG_MAX) + return false; + + NOTIMPLEMENTED(); + return false; +} + +size_t File::GetLength() { + DCHECK(init_); + return 0; +} + +} // namespace disk_cache |