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< ul >
< 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" > io_cache.h< / 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" > #ifndef PACKAGER_FILE_IO_CACHE_H_< / span > < / div >
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< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define PACKAGER_FILE_IO_CACHE_H_< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < span class = "preprocessor" > < / span > < / div >
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< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include < stdint.h> < / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < span class = "preprocessor" > #include < vector> < / span > < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include " packager/base/macros.h" < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include " packager/base/synchronization/lock.h" < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < span class = "preprocessor" > #include " packager/base/synchronization/waitable_event.h" < / span > < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "keyword" > namespace < / span > edash_packager {< / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "keyword" > namespace < / span > media {< / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > < a class = "line" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html" > 20< / a > < / span >   < span class = "keyword" > class < / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html" > IoCache< / a > {< / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "keyword" > public< / span > :< / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < span class = "keyword" > explicit< / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html" > IoCache< / a > (uint64_t cache_size);< / div >
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< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   ~< a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html" > IoCache< / a > ();< / div >
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< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < / div >
< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   uint64_t < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a462bd5ddce8041eaa109271fd0d155a9" > Read< / a > (< span class = "keywordtype" > void< / span > * buffer, uint64_t size);< / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   uint64_t < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4b7ee97ec07a6b2702ae4b58c9df4413" > Write< / a > (< span class = "keyword" > const< / span > < span class = "keywordtype" > void< / span > * buffer, uint64_t size);< / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ae8ed4943296a88e5d5356347e63c6a42" > Clear< / a > ();< / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4588dbf505a08da8423b525ce24fee92" > Close< / a > ();< / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < / div >
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< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > < a class = "line" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a742807639a2983fc05cf058a88bfbe79" > 50< / a > < / span >   < span class = "keywordtype" > bool< / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a742807639a2983fc05cf058a88bfbe79" > closed< / a > () { < span class = "keywordflow" > return< / span > closed_; }< / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a60aed7e0d5b1bf784cbc32bb75e1fb5b" > Reopen< / a > ();< / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   uint64_t < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a0fe59125434e46c2ea5474cfc9f0e95c" > BytesCached< / a > ();< / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   uint64_t < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ab5f7b9c5bc61e33f91cef7726f222586" > BytesFree< / a > ();< / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < span class = "keywordtype" > void< / span > < a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ace4946f4ecb34f84c4750d276404a3e5" > WaitUntilEmptyOrClosed< / a > ();< / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keyword" > private< / span > :< / div >
< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   uint64_t BytesCachedInternal();< / div >
< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   uint64_t BytesFreeInternal();< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   < / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keyword" > const< / span > uint64_t cache_size_;< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   base::Lock lock_;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   base::WaitableEvent read_event_;< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   base::WaitableEvent write_event_;< / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   std::vector< uint8_t> circular_buffer_;< / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "keyword" > const< / span > uint8_t* end_ptr_;< / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   uint8_t* r_ptr_;< / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   uint8_t* w_ptr_;< / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "keywordtype" > bool< / span > closed_;< / div >
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< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < / div >
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< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   DISALLOW_COPY_AND_ASSIGN(< a class = "code" href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html" > IoCache< / a > );< / 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 >   } < span class = "comment" > // namespace media< / span > < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   } < span class = "comment" > // namespace edash_packager< / span > < / 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 = "preprocessor" > #endif // PACKAGER_FILE_IO_CACHE_H< / span > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_a0fe59125434e46c2ea5474cfc9f0e95c" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a0fe59125434e46c2ea5474cfc9f0e95c" > edash_packager::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#l00126" > io_cache.cc:126< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_a60aed7e0d5b1bf784cbc32bb75e1fb5b" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a60aed7e0d5b1bf784cbc32bb75e1fb5b" > edash_packager::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#l00117" > io_cache.cc:117< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_a742807639a2983fc05cf058a88bfbe79" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a742807639a2983fc05cf058a88bfbe79" > edash_packager::media::IoCache::closed< / a > < / div > < div class = "ttdeci" > bool closed()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/d19/io__cache_8h_source.html#l00050" > io_cache.h:50< / a > < / div > < / div >
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< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html" > edash_packager::media::IoCache< / a > < / div > < div class = "ttdoc" > Declaration of class which implements a thread-safe circular buffer. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d3/d19/io__cache_8h_source.html#l00020" > io_cache.h:20< / a > < / div > < / div >
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< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_a4588dbf505a08da8423b525ce24fee92" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4588dbf505a08da8423b525ce24fee92" > edash_packager::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#l00110" > io_cache.cc:110< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_ace4946f4ecb34f84c4750d276404a3e5" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ace4946f4ecb34f84c4750d276404a3e5" > edash_packager::media::IoCache::WaitUntilEmptyOrClosed< / a > < / div > < div class = "ttdeci" > void WaitUntilEmptyOrClosed()< / div > < div class = "ttdoc" > Waits until the cache is empty or has been closed. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00146" > io_cache.cc:146< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_a4b7ee97ec07a6b2702ae4b58c9df4413" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a4b7ee97ec07a6b2702ae4b58c9df4413" > edash_packager::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#l00067" > io_cache.cc:67< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_ab5f7b9c5bc61e33f91cef7726f222586" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ab5f7b9c5bc61e33f91cef7726f222586" > edash_packager::media::IoCache::BytesFree< / a > < / div > < div class = "ttdeci" > uint64_t BytesFree()< / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00131" > io_cache.cc:131< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_ae8ed4943296a88e5d5356347e63c6a42" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#ae8ed4943296a88e5d5356347e63c6a42" > edash_packager::media::IoCache::Clear< / a > < / div > < div class = "ttdeci" > void Clear()< / div > < div class = "ttdoc" > Empties the cache. < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "../../d4/d37/io__cache_8cc_source.html#l00103" > io_cache.cc:103< / a > < / div > < / div >
< div class = "ttc" id = "classedash__packager_1_1media_1_1IoCache_html_a462bd5ddce8041eaa109271fd0d155a9" > < div class = "ttname" > < a href = "../../d3/d6b/classedash__packager_1_1media_1_1IoCache.html#a462bd5ddce8041eaa109271fd0d155a9" > edash_packager::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#l00039" > io_cache.cc:39< / a > < / div > < / div >
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