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* Initial cut of fork() => pthreads() for decoder and playerEric Wong2008-04-121-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* use unsigned integers in the flac pluginMax Kellermann2008-04-121-1/+1
| | | | | | The counter variables c_samp and c_chan begin at zero and can never be negative. git-svn-id: https://svn.musicpd.org/mpd/trunk@7228 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* removed unused variableMax Kellermann2008-04-121-3/+3
| | | | | The local variable d_samp is initialized, but never actually used. git-svn-id: https://svn.musicpd.org/mpd/trunk@7227 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix -Wconst warningsMax Kellermann2008-02-051-9/+9
| | | | | | [ew: cleaned up the dirty union hack a bit] Signed-off-by: Eric Wong <normalperson@yhbt.net> git-svn-id: https://svn.musicpd.org/mpd/trunk@7180 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* assume old flac api when FLAC_API_VERSION_CURRENT is not definedMax Kellermann2008-01-261-1/+1
| | | | | | | | | the code is inconsistent when FLAC_API_VERSION_CURRENT is not defined: sometimes version > 7 is assumed, and sometimes version <= 7. solve this by assuming the version is old when FLAC_API_VERSION_CURRENT is not defined. Signed-off-by: Eric Wong <normalperson@yhbt.net> git-svn-id: https://svn.musicpd.org/mpd/trunk@7144 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Cleanup #includes of standard system headers and put them in one placeEric Wong2008-01-031-5/+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
* Simplify decode cleanup logic a bitEric Wong2008-01-011-10/+0
| | | | | | | | | | | DECODE_STATE_STOP is always set as dc->state, and dc->stop is always cleared. So handle it in decodeStart once rather than doing it in every plugin. While we're at it, fix a long-standing (but difficult to trigger) bug in mpc_decode where we failed to return if mpc_decoder_initialize() fails. git-svn-id: https://svn.musicpd.org/mpd/trunk@7122 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Fix replaygain for latest flac version.Qball Cow2007-12-061-0/+9
| | | | | | The updated initialize method did not tell the libFLAC to look for the tag containing the replay information. git-svn-id: https://svn.musicpd.org/mpd/trunk@7075 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Add oga extension for flac-1.2.1Avuton Olrich2007-09-141-1/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@6888 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* inputPlugins/flac: improve error messagesEric Wong2007-08-281-12/+13
| | | | | | | | | For the default: case, just use the error message that libFLAC provides instead of using something ambiguous. Also, this gets rid of long lines in the code, making it easier to digest. Of course, we save ~100 bytes of text space in the process :) git-svn-id: https://svn.musicpd.org/mpd/trunk@6830 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
* flac: workaround for type inconsistency between new/old read callbackEric Wong2007-01-141-1/+1
| | | | | | size_t (1.1.3) makes a lot more sense, but older flac used unsigned here... git-svn-id: https://svn.musicpd.org/mpd/trunk@5258 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Don't initialize globals to zero (or NULL)Eric Wong2007-01-141-12/+1
| | | | | | | | Some compilers and linkers aren't smart enough to optimize this, as global variables are implictly initialized to zero. As a result, binaries are a bit smaller as more goes in the .bss and less in the text section. git-svn-id: https://svn.musicpd.org/mpd/trunk@5254 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* flac/ogg/oggflac: keep old mime-types in addition to the new onesEric Wong2007-01-141-2/+7
| | | | | | We'll be dealing with legacy server configurations for a long time to come. git-svn-id: https://svn.musicpd.org/mpd/trunk@5253 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* flac: sparse: mismatched enum type for seekEric Wong2007-01-141-1/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@5244 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Fix the mime types for flac & oggflac, see mantis bug #1423 for more informationAvuton Olrich2007-01-061-2/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@5222 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Add OggFLAC support when using the new 1.1.3 FLAC libraryEric Wong2006-12-041-18/+105
| | | | | | | This means that when using libFLAC as a shared object, OggFLAC support is dependent on the compile-time options of the libFLAC library loaded. git-svn-id: https://svn.musicpd.org/mpd/trunk@5112 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Introduce backwards compatibility with pre-1.1.3 FLACEric Wong2006-12-041-56/+106
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@5111 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* inputPlugins/flac_plugin: switch to the new (1.1.3) APIEric Wong2006-12-041-106/+60
| | | | | | We will restore compatibility with the old API in the next few commits; along with OggFLAC support. git-svn-id: https://svn.musicpd.org/mpd/trunk@5110 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* inputPlugins/flac_plugin: cleanup static declarationsEric Wong2006-12-041-149/+122
| | | | | | move flac_decode to the bottom, so we don't have to declare all of our static functions. git-svn-id: https://svn.musicpd.org/mpd/trunk@5109 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* trivial: labels should be on the left-most column, no tabbingEric Wong2006-08-201-1/+1
| | | | | | | | | | | | Unfortunately there doesn't seem to be an indent switch for this, but we have find + perl: find src -name '*.[ch]' | xargs perl -i -p -e \ 's/^\s+(\w+):/$1:/g unless /^\s+default:/' This is a followup to r4605, and there are no actual code changes in this. git-svn-id: https://svn.musicpd.org/mpd/trunk@4661 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Add mpd-indent.shAvuton Olrich2006-07-201-2/+2
| | | | | | Add a few new options for indent to try to make things a bit cleaner git-svn-id: https://svn.musicpd.org/mpd/trunk@4411 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Add mpd-indent.shAvuton Olrich2006-07-201-188/+231
| | | | | | 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
* inputPlugins/*_plugin.c: static-ficationEric Wong2006-07-171-23/+23
| | | | | | Nothing here is ever exported for linkage besides the InputPlugin structure, so mark them static to save a few bytes. git-svn-id: https://svn.musicpd.org/mpd/trunk@4382 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* sparse: fix a enum type mismatch in flac_pluginEric Wong2006-07-171-1/+1
| | | | | | | Both values are compiled to zero, but this is more correct since we're using the correct enum (in the unlikely case that the FLAC library breaks compatibility). git-svn-id: https://svn.musicpd.org/mpd/trunk@4379 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
* merge with mpd/trunk up to r3925Eric Wong2006-03-161-226/+32
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@3926 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* flac_plugin: revert the performance optimization we did a while agoEric Wong2005-12-311-23/+19
| | | | | | | | the performance optimization was broken for big-endian architectures. mpd-uclinux is doing using a slightly different optimization to flacWrite() that we may end up using here in the future. git-svn-id: https://svn.musicpd.org/mpd/trunk@3753 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Patch to make the configure flag for mpd-mad and mpd-libid3tag more logic ↵Qball Cow2005-09-081-1/+17
| | | | | (from ticho) git-svn-id: https://svn.musicpd.org/mpd/trunk@3477 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix FLAC playback over non-ideal HTTP streamsEric Wong2005-03-131-4/+14
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@3076 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* added composer, performer, and comment metadata itemsWarren Dukes2005-03-051-0/+10
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@3022 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix a logic error in flacParseReplayGain and also a gcc 2.95 compile errorEric Wong2005-02-071-3/+3
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2935 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* big endian support for flacWarren Dukes2005-02-021-1/+8
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2929 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix to code just submittedWarren Dukes2005-02-021-1/+1
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2928 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* minor optimization to flacWrite()Warren Dukes2005-02-021-19/+16
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2927 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* add streaming input support for FLACEric Wong2005-01-291-45/+33
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2912 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* merge changes from metadata-rewrite branchWarren Dukes2004-11-101-56/+66
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2589 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* rewrite replaygain code, needs testingWarren Dukes2004-11-021-26/+24
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2482 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* flac spelling fixes from npWarren Dukes2004-09-081-2/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2116 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* don't call replaygain and cause preamp to beused if no replaygain tag existsWarren Dukes2004-08-131-4/+4
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@2026 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* set flac_metadata_respond(VORBIS_COMMENT) so that flac responds to vorbis ↵Warren Dukes2004-06-281-0/+2
| | | | | comments and returns these to the metadata callback (so we can properly set the replaygain state) git-svn-id: https://svn.musicpd.org/mpd/trunk@1707 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix some memory leaks in flac_plugin - from normalpersonWarren Dukes2004-06-281-12/+22
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1699 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* '\n' are badWarren Dukes2004-06-021-4/+0
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1296 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* mod_plugin, just for tarzeauWarren Dukes2004-05-311-0/+4
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1263 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* icynames are now copied to title of streamsWarren Dukes2004-05-311-14/+16
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1258 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* little cleanup of plugin stuffWarren Dukes2004-05-311-8/+5
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@1247 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* flac_pluginWarren Dukes2004-05-311-0/+580
git-svn-id: https://svn.musicpd.org/mpd/trunk@1246 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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