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* Initial cut of fork() => pthreads() for decoder and playerEric Wong2008-04-121-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I initially started to do a heavy rewrite that changed the way processes communicated, but that was too much to do at once. So this change only focuses on replacing the player and decode processes with threads and using condition variables instead of polling in loops; so the changeset itself is quiet small. * The shared output buffer variables will still need locking to guard against race conditions. So in this effect, we're probably just as buggy as before. The reduced context-switching overhead of using threads instead of processes may even make bugs show up more or less often... * Basic functionality appears to be working for playing local (and NFS) audio, including: play, pause, stop, seek, previous, next, and main playlist editing * I haven't tested HTTP streams yet, they should work. * I've only tested ALSA and Icecast. ALSA works fine, Icecast metadata seems to get screwy at times and breaks song advancement in the playlist at times. * state file loading works, too (after some last-minute hacks with non-blocking wakeup functions) * The non-blocking (*_nb) variants of the task management functions are probably overused. They're more lenient and easier to use because much of our code is still based on our previous polling-based system. * It currently segfaults on exit. I haven't paid much attention to the exit/signal-handling routines other than ensuring it compiles. At least the state file seems to work. We don't do any cleanups of the threads on exit, yet. * Update is still done in a child process and not in a thread. To do this in a thread, we'll need to ensure it does proper locking and communication with the main thread; but should require less memory in the end because we'll be updating the database "in-place" rather than updating a copy and then bulk-loading when done. * We're more sensitive to bugs in 3rd party libraries now. My plan is to eventually use a master process which forks() and restarts the child when it dies: locking and communication with the main thread; but should require less memory in the end because we'll be updating the database "in-place" rather than updating a copy and then bulk-loading when done. * We're more sensitive to bugs in 3rd party libraries now. My plan is to eventually use a master process which forks() and restarts the child when it dies: master - just does waitpid() + fork() in a loop \- main thread \- decoder thread \- player thread At the beginning of every song, the main thread will set a dirty flag and update the state file. This way, if we encounter a song that triggers a segfault killing the main thread, the master will start the replacement main on the next song. * The main thread still wakes up every second on select() to check for signals; which affects power management. [merged r7138 from branches/ew] git-svn-id: https://svn.musicpd.org/mpd/trunk@7240 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Cleanup #includes of standard system headers and put them in one placeEric Wong2008-01-031-3/+1
| | | | | | | | | | | | | This will make refactoring features easier, especially now that pthreads support and larger refactorings are on the horizon. Hopefully, this will make porting to other platforms (even non-UNIX-like ones for masochists) easier, too. os_compat.h will house all the #includes for system headers considered to be the "core" of MPD. Headers for optional features will be left to individual source files. git-svn-id: https://svn.musicpd.org/mpd/trunk@7130 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Merge branches/ew r7104Eric Wong2007-12-281-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | thread-safety work in preparation for rewrite to use pthreads Expect no regressions against trunk (r7078), possibly minor performance improvements in update (due to fewer heap allocations), but increased stack usage. Applied the following patches: * maxpath_str for reentrancy (temporary fix, reverted) * path: start working on thread-safe variants of these methods * Re-entrancy work on path/character-set conversions * directory.c: exploreDirectory() use reentrant functions here * directory/update: more use of reentrant functions + cleanups * string_toupper: a strdup-less version of strDupToUpper * get_song_url: a static-variable-free version of getSongUrl() * Use reentrant/thread-safe get_song_url everywhere * replace rmp2amp with the reentrant version, rmp2amp_r * Get rid of the non-reentrant/non-thread-safe rpp2app, too. * buffer2array: assert strdup() returns a usable value in unit tests * replace utf8ToFsCharset and fsCharsetToUtf8 with thread-safe variants * fix storing playlists w/o absolute paths * parent_path(), a reentrant version of parentPath() * parentPath => parent_path for reentrancy and thread-safety * allow "make test" to automatically run embedded unit tests * remove convStrDup() and maxpath_str() * use MPD_PATH_MAX everywhere instead of MAXPATHLEN * path: get rid of appendSlash, pfx_path and just use pfx_dir * get_song_url: fix the ability to play songs in the top-level music_directory git-svn-id: https://svn.musicpd.org/mpd/trunk@7106 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* get rid of unused DECODE_SUFFIX_* #definesEric Wong2007-09-071-7/+0
| | | | | These haven't been used for several years git-svn-id: https://svn.musicpd.org/mpd/trunk@6863 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* The massive copyright updateAvuton Olrich2007-04-051-1/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@5834 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Fix warnings for -Wmissing-prototypesAvuton Olrich2006-08-201-1/+1
| | | | | | Add -Wmissing-prototypes if compiling with gcc Static where possible git-svn-id: https://svn.musicpd.org/mpd/trunk@4657 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Add mpd-indent.shAvuton Olrich2006-07-201-4/+4
| | | | | | Indent the entire tree, hopefully we can keep it indented. git-svn-id: https://svn.musicpd.org/mpd/trunk@4410 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Change shank's email addressJ. Alexander Treuman2006-07-141-1/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4333 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Huge header update, update the copyright and addAvuton Olrich2006-07-131-1/+1
| | | | | the GPL header where necessary git-svn-id: https://svn.musicpd.org/mpd/trunk@4317 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* now player and decoder processes should only exit() when receiving term ↵Warren Dukes2005-03-081-1/+2
| | | | | signal from their respective parent processes git-svn-id: https://svn.musicpd.org/mpd/trunk@3034 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* remove vim &*(@Warren Dukes2004-11-031-1/+0
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2500 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* mechanism for updating metadata while decodingWarren Dukes2004-06-061-2/+0
| | | | | | | vorbis comments are updated on the fly for streams need to decode icy metadata buffering of metadata needs to be hardened, to ensure that player has already read a particular metachunk or passed over it git-svn-id: https://svn.musicpd.org/mpd/trunk@1358 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* todo updateWarren Dukes2004-06-061-8/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1352 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* ogg voribs comment parsing on the fly in the decoderWarren Dukes2004-06-011-0/+5
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1279 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* icynames are now copied to title of streamsWarren Dukes2004-05-311-1/+6
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1258 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fixed seek, its now blocking againWarren Dukes2004-05-301-1/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1237 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* get rid of seekError in DecoderControlWarren Dukes2004-05-201-1/+0
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1101 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* non-blocking seeking, needs some testing! (this is not just for streamsWarren Dukes2004-05-191-1/+1
| | | | | but new code for files seeking as well) git-svn-id: https://svn.musicpd.org/mpd/trunk@1099 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* bug fixy poo s/1/0/Warren Dukes2004-05-191-0/+1
| | | | | and mark in decoderControl if we are seekable git-svn-id: https://svn.musicpd.org/mpd/trunk@1078 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* try to make seeking more non-blockingWarren Dukes2004-05-191-1/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1076 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix a mem leak when unknow type in decodeStart()Warren Dukes2004-05-181-2/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1063 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* rework stuff so that we can use mime-type of streams to detect type of fileWarren Dukes2004-05-181-8/+11
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1062 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* some more work on organizing code for resampling/audioFormat conversionWarren Dukes2004-05-101-1/+4
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@968 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* log cycling and a few cleanupsWarren Dukes2004-04-151-6/+7
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@772 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* add vim shiznit to end of all source filesWarren Dukes2004-04-141-0/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@750 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix error reporting for mp4 filesWarren Dukes2004-03-221-0/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@370 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* aac decoding!Warren Dukes2004-03-221-5/+8
| | | | | | | | need to work on seeking for AAC also, don't reset cb->begin on seek to 0, instead just set cb->end=cb->begin, works much better for disabling seeking (like ADIF AAC's) git-svn-id: https://svn.musicpd.org/mpd/trunk@356 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* parse length from Aac files and ID3 tagsWarren Dukes2004-03-211-0/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@346 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* bunch of autotool cleanupsWarren Dukes2004-03-181-2/+3
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@271 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* have AAC and MP4 typesWarren Dukes2004-03-171-0/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@267 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix a few snafoo's in configure.acWarren Dukes2004-03-171-0/+1
| | | | | Add initial stuff for AAC support, now we just need to write the decoder git-svn-id: https://svn.musicpd.org/mpd/trunk@264 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* import from SF CVSWarren Dukes2004-02-231-0/+50
git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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