15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/file_stream_context.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 72a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include <errno.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/basictypes.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind_helpers.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/callback.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/files/file_path.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/location.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/metrics/histogram.h" 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/posix/eintr_wrapper.h" 18010d83a9304c5a91596085d917d248abff47903aTorne (Richard Coles)#include "base/task_runner.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/task_runner_util.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/io_buffer.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/net_errors.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace net { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 250529e5d033099cbfc42635f6f6183833b09dff6eBen MurdochFileStream::Context::Context(const scoped_refptr<base::TaskRunner>& task_runner) 26c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch : async_in_progress_(false), 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) orphaned_(false), 287d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) task_runner_(task_runner) { 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3123730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles)FileStream::Context::Context(base::File file, 327d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) const scoped_refptr<base::TaskRunner>& task_runner) 3323730a6e56a168d1879203e4b3819bb36e3d8f1fTorne (Richard Coles) : file_(file.Pass()), 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) async_in_progress_(false), 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) orphaned_(false), 367d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) task_runner_(task_runner) { 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)FileStream::Context::~Context() { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 42116680a4aac90f2aa7413d9095a592090648e557Ben Murdochint FileStream::Context::Read(IOBuffer* in_buf, 43116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch int buf_len, 44116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const CompletionCallback& callback) { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!async_in_progress_); 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<IOBuffer> buf = in_buf; 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const bool posted = base::PostTaskAndReplyWithResult( 497d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) task_runner_.get(), 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 51868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Bind(&Context::ReadFileImpl, base::Unretained(this), buf, buf_len), 520529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch base::Bind(&Context::OnAsyncCompleted, 53868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Unretained(this), 540529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch IntToInt64(callback))); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(posted); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) async_in_progress_ = true; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ERR_IO_PENDING; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 61116680a4aac90f2aa7413d9095a592090648e557Ben Murdochint FileStream::Context::Write(IOBuffer* in_buf, 62116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch int buf_len, 63116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch const CompletionCallback& callback) { 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(!async_in_progress_); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<IOBuffer> buf = in_buf; 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const bool posted = base::PostTaskAndReplyWithResult( 687d4cd473f85ac64c3747c96c277f9e506a0d2246Torne (Richard Coles) task_runner_.get(), 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 70868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Bind(&Context::WriteFileImpl, base::Unretained(this), buf, buf_len), 710529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch base::Bind(&Context::OnAsyncCompleted, 72868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) base::Unretained(this), 730529e5d033099cbfc42635f6f6183833b09dff6eBen Murdoch IntToInt64(callback))); 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(posted); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) async_in_progress_ = true; 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ERR_IO_PENDING; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 80116680a4aac90f2aa7413d9095a592090648e557Ben MurdochFileStream::Context::IOResult FileStream::Context::SeekFileImpl( 81116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch base::File::Whence whence, 82116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch int64 offset) { 83116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch int64 res = file_.Seek(whence, offset); 84116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch if (res == -1) 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return IOResult::FromOSError(errno); 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return IOResult(res, 0); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 90116680a4aac90f2aa7413d9095a592090648e557Ben Murdochvoid FileStream::Context::OnFileOpened() { 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 932a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)FileStream::Context::IOResult FileStream::Context::ReadFileImpl( 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_refptr<IOBuffer> buf, 952a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int buf_len) { 96116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch int res = file_.ReadAtCurrentPosNoBestEffort(buf->data(), buf_len); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (res == -1) 982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return IOResult::FromOSError(errno); 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return IOResult(res, 0); 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)FileStream::Context::IOResult FileStream::Context::WriteFileImpl( 1042a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) scoped_refptr<IOBuffer> buf, 1052a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) int buf_len) { 106116680a4aac90f2aa7413d9095a592090648e557Ben Murdoch int res = file_.WriteAtCurrentPosNoBestEffort(buf->data(), buf_len); 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (res == -1) 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return IOResult::FromOSError(errno); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1102a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) return IOResult(res, 0); 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace net 114