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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/files/file_tracing.h"
#include "base/metrics/histogram.h"
#include "base/timer/elapsed_timer.h"
#include "build/build_config.h"
namespace base {
File::Info::Info()
: size(0),
is_directory(false),
is_symbolic_link(false) {
}
File::Info::~Info() {
}
File::File()
: error_details_(FILE_ERROR_FAILED),
created_(false),
async_(false) {
}
#if !defined(OS_NACL)
File::File(const FilePath& path, uint32_t flags)
: error_details_(FILE_OK), created_(false), async_(false) {
Initialize(path, flags);
}
#endif
File::File(PlatformFile platform_file)
: file_(platform_file),
error_details_(FILE_OK),
created_(false),
async_(false) {
#if defined(OS_POSIX)
DCHECK_GE(platform_file, -1);
#endif
}
File::File(Error error_details)
: error_details_(error_details),
created_(false),
async_(false) {
}
File::File(File&& other)
: file_(other.TakePlatformFile()),
tracing_path_(other.tracing_path_),
error_details_(other.error_details()),
created_(other.created()),
async_(other.async_) {}
File::~File() {
// Go through the AssertIOAllowed logic.
Close();
}
// static
File File::CreateForAsyncHandle(PlatformFile platform_file) {
File file(platform_file);
// It would be nice if we could validate that |platform_file| was opened with
// FILE_FLAG_OVERLAPPED on Windows but this doesn't appear to be possible.
file.async_ = true;
return file;
}
File& File::operator=(File&& other) {
DCHECK_NE(this, &other);
Close();
SetPlatformFile(other.TakePlatformFile());
tracing_path_ = other.tracing_path_;
error_details_ = other.error_details();
created_ = other.created();
async_ = other.async_;
return *this;
}
#if !defined(OS_NACL)
void File::Initialize(const FilePath& path, uint32_t flags) {
if (path.ReferencesParent()) {
error_details_ = FILE_ERROR_ACCESS_DENIED;
return;
}
if (FileTracing::IsCategoryEnabled())
tracing_path_ = path;
SCOPED_FILE_TRACE("Initialize");
DoInitialize(path, flags);
}
#endif
std::string File::ErrorToString(Error error) {
switch (error) {
case FILE_OK:
return "FILE_OK";
case FILE_ERROR_FAILED:
return "FILE_ERROR_FAILED";
case FILE_ERROR_IN_USE:
return "FILE_ERROR_IN_USE";
case FILE_ERROR_EXISTS:
return "FILE_ERROR_EXISTS";
case FILE_ERROR_NOT_FOUND:
return "FILE_ERROR_NOT_FOUND";
case FILE_ERROR_ACCESS_DENIED:
return "FILE_ERROR_ACCESS_DENIED";
case FILE_ERROR_TOO_MANY_OPENED:
return "FILE_ERROR_TOO_MANY_OPENED";
case FILE_ERROR_NO_MEMORY:
return "FILE_ERROR_NO_MEMORY";
case FILE_ERROR_NO_SPACE:
return "FILE_ERROR_NO_SPACE";
case FILE_ERROR_NOT_A_DIRECTORY:
return "FILE_ERROR_NOT_A_DIRECTORY";
case FILE_ERROR_INVALID_OPERATION:
return "FILE_ERROR_INVALID_OPERATION";
case FILE_ERROR_SECURITY:
return "FILE_ERROR_SECURITY";
case FILE_ERROR_ABORT:
return "FILE_ERROR_ABORT";
case FILE_ERROR_NOT_A_FILE:
return "FILE_ERROR_NOT_A_FILE";
case FILE_ERROR_NOT_EMPTY:
return "FILE_ERROR_NOT_EMPTY";
case FILE_ERROR_INVALID_URL:
return "FILE_ERROR_INVALID_URL";
case FILE_ERROR_IO:
return "FILE_ERROR_IO";
case FILE_ERROR_MAX:
break;
}
NOTREACHED();
return "";
}
} // namespace base
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