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< li class = "navelem" > < a class = "el" href = "../../dir_39dc0668bd5a501998f94e8b4e546c71.html" > media< / a > < / li > < li class = "navelem" > < a class = "el" href = "../../dir_279fd47bebb21302c25cfb685e84c359.html" > file< / a > < / li > < / ul >
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< div class = "title" > threaded_io_file.cc< / div > < / div >
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< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > // Copyright 2015 Google Inc. All rights reserved.< / span > < / div >
< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > //< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > // Use of this source code is governed by a BSD-style< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > // license that can be found in the LICENSE file or at< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > // https://developers.google.com/open-source/licenses/bsd< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < span class = "preprocessor" > #include " packager/media/file/threaded_io_file.h" < / span > < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > #include " packager/base/bind.h" < / span > < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include " packager/base/bind_helpers.h" < / span > < / div >
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< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include " packager/base/location.h" < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/base/threading/worker_pool.h" < / span > < / div >
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< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < / div >
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< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "keyword" > namespace < / span > shaka {< / div >
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< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < / div >
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< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "keyword" > using< / span > base::subtle::NoBarrier_Load;< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "keyword" > using< / span > base::subtle::NoBarrier_Store;< / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
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< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   ThreadedIoFile::ThreadedIoFile(std::unique_ptr< File, FileCloser> internal_file,< / div >
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< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   Mode mode,< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   uint64_t io_cache_size,< / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   uint64_t io_block_size)< / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   : File(internal_file-> file_name()),< / div >
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< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   internal_file_(std::move(internal_file)),< / div >
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< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   mode_(mode),< / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   cache_(io_cache_size),< / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   io_buffer_(io_block_size),< / div >
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< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   position_(0),< / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   size_(0),< / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   eof_(false),< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   flushing_(false),< / div >
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< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   flush_complete_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,< / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   base::WaitableEvent::InitialState::NOT_SIGNALED),< / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   internal_file_error_(0),< / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   task_exit_event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,< / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   base::WaitableEvent::InitialState::NOT_SIGNALED) {< / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   }< / div >
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< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < / div >
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< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   ThreadedIoFile::~ThreadedIoFile() {}< / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ae3db248116be393b18d70bb27f6aeb68" > 43< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ae3db248116be393b18d70bb27f6aeb68" > ThreadedIoFile::Open< / a > () {< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "keywordflow" > if< / span > (!internal_file_-> Open())< / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   position_ = 0;< / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   size_ = internal_file_-> Size();< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   base::WorkerPool::PostTask(FROM_HERE, base::Bind(& ThreadedIoFile::TaskHandler,< / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   base::Unretained(< span class = "keyword" > this< / span > )),< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "keyword" > true< / span > < span class = "comment" > /* task_is_slow */< / span > );< / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   }< / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a85d185a7eaa1abc857540ef703ab9a" > 58< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a85d185a7eaa1abc857540ef703ab9a" > ThreadedIoFile::Close< / a > () {< / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "keywordflow" > if< / span > (mode_ == kOutputMode)< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e" > Flush< / a > ();< / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112" > Close< / a > ();< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   task_exit_event_.Wait();< / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < span class = "keywordtype" > bool< / span > result = internal_file_.release()-> Close();< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "keyword" > delete< / span > < span class = "keyword" > this< / span > ;< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < span class = "keywordflow" > return< / span > result;< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   }< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a5bd05e37779441004cd7ba0c33de1ad6" > 72< / a > < / span >   int64_t < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a5bd05e37779441004cd7ba0c33de1ad6" > ThreadedIoFile::Read< / a > (< span class = "keywordtype" > void< / span > * buffer, uint64_t length) {< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   DCHECK_EQ(kInputMode, mode_);< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "keywordflow" > if< / span > (NoBarrier_Load(& eof_) & & !cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a385baed04dd0cc0d3dca20d78f61559f" > BytesCached< / a > ())< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "keywordflow" > return< / span > 0;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "keywordflow" > if< / span > (NoBarrier_Load(& internal_file_error_))< / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "keywordflow" > return< / span > NoBarrier_Load(& internal_file_error_);< / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   uint64_t bytes_read = cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a3cb864f866af25f0ff92c367946b0945" > Read< / a > (buffer, length);< / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   position_ += bytes_read;< / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "keywordflow" > return< / span > bytes_read;< / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   }< / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#aa14502dd48c1c64329283f5f1340f60f" > 89< / a > < / span >   int64_t < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#aa14502dd48c1c64329283f5f1340f60f" > ThreadedIoFile::Write< / a > (< span class = "keyword" > const< / span > < span class = "keywordtype" > void< / span > * buffer, uint64_t length) {< / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   DCHECK_EQ(kOutputMode, mode_);< / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "keywordflow" > if< / span > (NoBarrier_Load(& internal_file_error_))< / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "keywordflow" > return< / span > NoBarrier_Load(& internal_file_error_);< / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   uint64_t bytes_written = cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a0349796209c24a99bfe3c1bfdafb1d28" > Write< / a > (buffer, length);< / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   position_ += bytes_written;< / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "keywordflow" > if< / span > (position_ > size_)< / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   size_ = position_;< / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "keywordflow" > return< / span > bytes_written;< / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   }< / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ac8c1f49d9e7ff55b1484129240c065f3" > 104< / a > < / span >   int64_t < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ac8c1f49d9e7ff55b1484129240c065f3" > ThreadedIoFile::Size< / a > () {< / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "keywordflow" > return< / span > size_;< / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   }< / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e" > 110< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e" > ThreadedIoFile::Flush< / a > () {< / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   DCHECK_EQ(kOutputMode, mode_);< / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   flushing_ = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > 115< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112" > Close< / a > ();< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   flush_complete_event_.Wait();< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < span class = "keywordflow" > return< / span > internal_file_-> Flush();< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   }< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   < / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a30faf9c8e8b367bcfebb7b642d73e7" > 120< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a30faf9c8e8b367bcfebb7b642d73e7" > ThreadedIoFile::Seek< / a > (uint64_t position) {< / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < span class = "keywordflow" > if< / span > (mode_ == kOutputMode) {< / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "comment" > // Writing. Just flush the cache and seek.< / span > < / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < span class = "keywordflow" > if< / span > (!< a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e" > Flush< / a > ()) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keywordflow" > if< / span > (!internal_file_-> Seek(position)) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "comment" > // Reading. Close cache, wait for thread task to exit, seek, and re-post< / span > < / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < span class = "comment" > // the task.< / span > < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112" > Close< / a > ();< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   task_exit_event_.Wait();< / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   < span class = "keywordtype" > bool< / span > result = internal_file_-> Seek(position);< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   < span class = "keywordflow" > if< / span > (!result) {< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   < span class = "comment" > // Seek failed. Seek to logical position instead.< / span > < / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   < span class = "keywordflow" > if< / span > (!internal_file_-> Seek(position_) & & (position != position_)) {< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   LOG(WARNING) < < < span class = "stringliteral" > " Seek failed. ThreadedIoFile left in invalid state." < / span > ;< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   }< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   }< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#ae751faea047196ba2770f5bf90649185" > Reopen< / a > ();< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   eof_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   base::WorkerPool::PostTask(< / div >
< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   FROM_HERE,< / div >
< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   base::Bind(& ThreadedIoFile::TaskHandler, base::Unretained(< span class = "keyword" > this< / span > )),< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "keyword" > true< / span > < span class = "comment" > /* task_is_slow */< / span > );< / div >
< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keywordflow" > if< / span > (!result) < span class = "keywordflow" > return< / span > < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   }< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   position_ = position;< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   }< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   < / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > < a class = "line" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a23949d75527c8de9f02e749c7744f11e" > 149< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a23949d75527c8de9f02e749c7744f11e" > ThreadedIoFile::Tell< / a > (uint64_t* position) {< / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   DCHECK(position);< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   *position = position_;< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   }< / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   < span class = "keywordtype" > void< / span > ThreadedIoFile::TaskHandler() {< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   < span class = "keywordflow" > if< / span > (mode_ == kInputMode)< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   RunInInputMode();< / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   < span class = "keywordflow" > else< / span > < / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   RunInOutputMode();< / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   task_exit_event_.Signal();< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   }< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < span class = "keywordtype" > void< / span > ThreadedIoFile::RunInInputMode() {< / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   DCHECK_EQ(kInputMode, mode_);< / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   < / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   int64_t read_result = internal_file_-> Read(& io_buffer_[0],< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   io_buffer_.size());< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   < span class = "keywordflow" > if< / span > (read_result < = 0) {< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   NoBarrier_Store(& eof_, read_result == 0);< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   NoBarrier_Store(& internal_file_error_, read_result);< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112" > Close< / a > ();< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   }< / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   < span class = "keywordflow" > if< / span > (cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a0349796209c24a99bfe3c1bfdafb1d28" > Write< / a > (& io_buffer_[0], read_result) == 0) {< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   }< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   }< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   }< / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   < / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   < span class = "keywordtype" > void< / span > ThreadedIoFile::RunInOutputMode() {< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   DCHECK(internal_file_);< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   DCHECK_EQ(kOutputMode, mode_);< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   < / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < span class = "keywordflow" > while< / span > (< span class = "keyword" > true< / span > ) {< / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   uint64_t write_bytes = cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a3cb864f866af25f0ff92c367946b0945" > Read< / a > (& io_buffer_[0], io_buffer_.size());< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "keywordflow" > if< / span > (write_bytes == 0) {< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "keywordflow" > if< / span > (flushing_) {< / div >
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#ae751faea047196ba2770f5bf90649185" > Reopen< / a > ();< / div >
< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   flushing_ = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   flush_complete_event_.Signal();< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   }< / div >
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   uint64_t bytes_written(0);< / div >
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   < span class = "keywordflow" > while< / span > (bytes_written < write_bytes) {< / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   int64_t write_result = internal_file_-> Write(< / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   & io_buffer_[bytes_written], write_bytes - bytes_written);< / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "keywordflow" > if< / span > (write_result < 0) {< / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   NoBarrier_Store(& internal_file_error_, write_result);< / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   cache_.< a class = "code" href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112" > Close< / a > ();< / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keywordflow" > return< / span > ;< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   }< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   bytes_written += write_result;< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   }< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   }< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   }< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   }< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   < / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   } < span class = "comment" > // namespace shaka< / span > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_a23949d75527c8de9f02e749c7744f11e" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a23949d75527c8de9f02e749c7744f11e" > shaka::media::ThreadedIoFile::Tell< / a > < / div > < div class = "ttdeci" > bool Tell(uint64_t *position) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00149" > threaded_io_file.cc:149< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_a4a30faf9c8e8b367bcfebb7b642d73e7" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a30faf9c8e8b367bcfebb7b642d73e7" > shaka::media::ThreadedIoFile::Seek< / a > < / div > < div class = "ttdeci" > bool Seek(uint64_t position) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00120" > threaded_io_file.cc:120< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_a4c8d46b1a16fba8bf4267c0a11fa856e" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4c8d46b1a16fba8bf4267c0a11fa856e" > shaka::media::ThreadedIoFile::Flush< / a > < / div > < div class = "ttdeci" > bool Flush() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00110" > threaded_io_file.cc:110< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1IoCache_html_a23dfcb4d031d76e980e41d1b1bec7112" > < div class = "ttname" > < a href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a23dfcb4d031d76e980e41d1b1bec7112" > shaka::media::IoCache::Close< / a > < / div > < div class = "ttdeci" > void Close()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00111" > io_cache.cc:111< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_aa14502dd48c1c64329283f5f1340f60f" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#aa14502dd48c1c64329283f5f1340f60f" > shaka::media::ThreadedIoFile::Write< / a > < / div > < div class = "ttdeci" > int64_t Write(const void *buffer, uint64_t length) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00089" > threaded_io_file.cc:89< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1IoCache_html_ae751faea047196ba2770f5bf90649185" > < div class = "ttname" > < a href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#ae751faea047196ba2770f5bf90649185" > shaka::media::IoCache::Reopen< / a > < / div > < div class = "ttdeci" > void Reopen()< / div > < div class = "ttdoc" > Reopens the cache. Any data still in the cache will be lost. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00118" > io_cache.cc:118< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1IoCache_html_a3cb864f866af25f0ff92c367946b0945" > < div class = "ttname" > < a href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a3cb864f866af25f0ff92c367946b0945" > shaka::media::IoCache::Read< / a > < / div > < div class = "ttdeci" > uint64_t Read(void *buffer, uint64_t size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00040" > io_cache.cc:40< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_ae3db248116be393b18d70bb27f6aeb68" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ae3db248116be393b18d70bb27f6aeb68" > shaka::media::ThreadedIoFile::Open< / a > < / div > < div class = "ttdeci" > bool Open() override< / div > < div class = "ttdoc" > Internal open. Should not be used directly. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00043" > threaded_io_file.cc:43< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_a4a85d185a7eaa1abc857540ef703ab9a" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a4a85d185a7eaa1abc857540ef703ab9a" > shaka::media::ThreadedIoFile::Close< / a > < / div > < div class = "ttdeci" > bool Close() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00058" > threaded_io_file.cc:58< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1IoCache_html_a385baed04dd0cc0d3dca20d78f61559f" > < div class = "ttname" > < a href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a385baed04dd0cc0d3dca20d78f61559f" > shaka::media::IoCache::BytesCached< / a > < / div > < div class = "ttdeci" > uint64_t BytesCached()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00127" > io_cache.cc:127< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_ac8c1f49d9e7ff55b1484129240c065f3" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#ac8c1f49d9e7ff55b1484129240c065f3" > shaka::media::ThreadedIoFile::Size< / a > < / div > < div class = "ttdeci" > int64_t Size() override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00104" > threaded_io_file.cc:104< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1IoCache_html_a0349796209c24a99bfe3c1bfdafb1d28" > < div class = "ttname" > < a href = "../../dd/d7c/classshaka_1_1media_1_1IoCache.html#a0349796209c24a99bfe3c1bfdafb1d28" > shaka::media::IoCache::Write< / a > < / div > < div class = "ttdeci" > uint64_t Write(const void *buffer, uint64_t size)< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00068" > io_cache.cc:68< / a > < / div > < / div >
< div class = "ttc" id = "classshaka_1_1media_1_1ThreadedIoFile_html_a5bd05e37779441004cd7ba0c33de1ad6" > < div class = "ttname" > < a href = "../../d0/d66/classshaka_1_1media_1_1ThreadedIoFile.html#a5bd05e37779441004cd7ba0c33de1ad6" > shaka::media::ThreadedIoFile::Read< / a > < / div > < div class = "ttdeci" > int64_t Read(void *buffer, uint64_t length) override< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d2/d23/threaded__io__file_8cc_source.html#l00072" > threaded_io_file.cc:72< / a > < / div > < / div >
2015-10-16 00:33:37 +00:00
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