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* playlist: PlaylistInfo() does not call commandError()Max Kellermann2008-09-091-2/+14
| | | | | | Continuing the effort of removing protocol specific calls from the core libraries: let the command.c code call commandError() based on PlaylistInfo's return value.
* playlist: don't pass "fd" to storedPlaylist.c functionsMax Kellermann2008-09-091-8/+23
| | | | | Return an "enum playlist_result" value instead of calling commandError() in storedPlaylist.c.
* playlist: don't pass "fd" to playlist.c functionsMax Kellermann2008-09-091-36/+126
| | | | | | The playlist library shouldn't talk to the client if possible. Introduce the "enum playlist_result" type which the caller (i.e. command.c) may use to generate an error message.
* playlist: showPlaylist() and shufflePlaylist() cannot failMax Kellermann2008-09-091-2/+4
| | | | Make them both return void.
* playlist: moved "repeat" and "random" value checks to command.cMax Kellermann2008-09-091-2/+18
| | | | | | | | Client's input values should be validated by the command implementation, and the core libraries shouldn't talk to the client directly if possible. Thus, setPlaylistRepeatStatus() and setPlaylistRandomStatus() don't get the file descriptor, and cannot fail (return void).
* tag: renamed functions, no CamelCaseMax Kellermann2008-09-021-1/+1
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* include cleanupMax Kellermann2008-08-311-0/+1
| | | | Only include headers which are really needed.
* playlist: eliminate unused fd parametersMax Kellermann2008-08-311-8/+12
| | | | | Again, remove file descriptor parameters, which are not actually used. These functions can also be converted to return void.
* moved struct AudioFormat to audio_format.hMax Kellermann2008-08-301-0/+1
| | | | | We want to expose the AudioFormat structure to plugins; remove some clutter by moving its declaration to a separate header file.
* enable -Wpointer-arith, -Wstrict-prototypesMax Kellermann2008-08-301-69/+129
| | | | | | Also enable -Wunused-parameter - this forces us to add the gcc "unused" attribute to a lot of parameters (mostly library callback functions), but it's worth it during code refactorizations.
* core rewrite (decode,player,outputBuffer,playlist)Eric Wong2008-08-161-23/+27
| | | | | | | | | | | | | This is a huge refactoring of the core mpd process. The queueing/buffering mechanism is heavily reworked. The player.c code has been merged into outputBuffer (the actual ring buffering logic is handled by ringbuf.c); and decode.c actually handles decoding stuff. The end result is several hundreds of lines shorter, even though we still have a lot of DEBUG statements left in there for tracing and a lot of assertions, too.
* command.c: remove dead commented codeEric Wong2008-04-141-1/+0
| | | | | We have revision control for a reason :) git-svn-id: https://svn.musicpd.org/mpd/trunk@7357 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* clean up CPP includesMax Kellermann2008-04-121-1/+2
| | | | | | | | | Try to only include headers which are really needed. We should particularly check all "headers including other headers". The long-term goal is to have a manageable, small API for plugins (decoders, output) without so many mpd internals cluttering the namespace. git-svn-id: https://svn.musicpd.org/mpd/trunk@7319 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* eliminated duplicate initializationMax Kellermann2008-03-261-2/+2
| | | | | | | Local variables which are never read before the first assignment don't need initialization. Saves a few bytes of text. Also don't reset variables which are never read until function return. git-svn-id: https://svn.musicpd.org/mpd/trunk@7199 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fix -Wconst warningsMax Kellermann2008-02-051-6/+5
| | | | | | [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
* Revert the queue implementation and commandsEric Wong2008-01-261-50/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's too ugly and broken (both technically and usability-wise) to be worth supporting in any stable release. In one sentence: The queue is a very crippled version of the playlist that takes precedence over the normal playlist. How is it crippled? * The "queueid" command only allows the queuing of songs ALREADY IN THE PLAYLIST! This promotes having the entire mpd database of songs in the playlist, which is a stupid practice to begin with. * It doesn't allow for meaningful rearranging and movement of songs within the queue. To move a song, you'd need to dequeue and requeue it (and other songs on the list). Why? The playlist already allows _all_ these features and shows everything a client needs to know about the ordering of songs in a _single_ command! * Random was a stupid idea to begin with and unfortunately we're stuck supporting it since we've always had it. Users should learn to use "shuffle" instead and not look at their playlists. Implementing queue because we have the problem of random is just a bandage fix and digging ourselves a new hole. This protocol addition was never in a stable release of mpd, so reverting it will only break things for people following trunk; which I'm not too worried about. I am however worried about long-term support of this misfeature, so I'm removing it. Additionally, there are other points: * It's trivially DoS-able: (while true; do echo queueid $song_id; done) | nc $MPD_HOST $MPD_PORT The above commands would cause the queue to become infinitely expanding, taking up all available memory in the system. The mpd playlist was implemented as an array with a fixed (but configurable) size limit for this reason. * It's not backwards-compatible. All clients would require upgrades (and additional complexity) to even know what the next song in the playlist is. mpd is a shared architecture, and we should not violate the principle of least astonishment here. This removes the following commands: queueid, dequeue, queueinfo Additionally, the status field of "playlistqueue: " is removed from the status command. While this DoS is trivial to fix, the design is simply too broken to ever support in a real release. The overloading of the "addid" command and the allowing of negative numbers to be used as offsets is far more flexible. This improved "addid" is completely backwards-compatible with all clients, and does not require clients to have UI changes or run additional commands to display the queue. git-svn-id: https://svn.musicpd.org/mpd/trunk@7155 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* command: allow "addid" command to take an optional second argument, positionEric Wong2008-01-261-2/+14
| | | | | | | | | | | This will allow "addid \"song_url\" <pos>" to atomically insert a song at any given playlist position. If the add succeeds, but the actual movement fails (due to invalid position), then the song_id will be deleted before the command returns back to the client, and the client will get an error response. git-svn-id: https://svn.musicpd.org/mpd/trunk@7151 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* command: cleanup integer argument validation for commandsEric Wong2008-01-261-214/+106
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@7150 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* addToPlaylist/addSongToPlaylist: printId argument changed to added_idEric Wong2008-01-261-2/+7
| | | | | | | | | | | | Instead of printing out the Id from playlist.c, instead set the integer that added_id poitns to if added_id is non-NULL. This makes the API cleaner and will allow us to use additional commands to manipulate the newly-added song_id. Callers (handleAddId) that relied on printId to print it to the given fd have now been modified to print the ID at a higher-level; making playlist.c less-dependent on protocol details. git-svn-id: https://svn.musicpd.org/mpd/trunk@7149 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* fixed -Wshadow warningsMax Kellermann2008-01-261-13/+13
| | | | | Signed-off-by: Eric Wong <normalperson@yhbt.net> git-svn-id: https://svn.musicpd.org/mpd/trunk@7143 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Cleanup #includes of standard system headers and put them in one placeEric Wong2008-01-031-6/+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
* Playlist queue patch (http://musicpd.org/mantis/view.php?id=1478) version 11.Qball Cow2007-09-261-0/+50
| | | | | | | | | | | | | This adds the following commands: * queueid <id> Add song <id> to the queue. * dequeue <pos> Remove song from <pos> from the queue * queueinfo List the queue To the statusfield it adds the following entry: playlistqueue: <uid> UID can be used by clients to track changes in the playlist queue. git-svn-id: https://svn.musicpd.org/mpd/trunk@6927 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Adding rename command, for renaming stored playlists.J. Alexander Treuman2007-05-241-0/+7
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@6246 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Don't list playlists in lsinfo if the path isn't the root directory (theyJ. Alexander Treuman2007-05-241-11/+12
| | | | | can't be loaded anyway). git-svn-id: https://svn.musicpd.org/mpd/trunk@6244 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Committing pat's rewrite of the stored playlist code. This also adds twoJ. Alexander Treuman2007-05-161-0/+42
| | | | | new commands: playlistmove and playlistdelete. git-svn-id: https://svn.musicpd.org/mpd/trunk@6116 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Adding count command. It's usage is identical to find, but instead ofJ. Alexander Treuman2007-04-251-0/+23
| | | | | | returning a list of matching songs, the number of results and total play time of the results are returned. git-svn-id: https://svn.musicpd.org/mpd/trunk@5950 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* When calling commandError(STDERR_FILENO, ...), don't set current_command toJ. Alexander Treuman2007-04-081-1/+1
| | | | | | | NULL. Doing so would mean future calls to commandError with a socket as an argument will still write the error message to the error log, and not the socket. git-svn-id: https://svn.musicpd.org/mpd/trunk@5891 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* If current_command is NULL when calling commandError, print the errorJ. Alexander Treuman2007-04-081-5/+8
| | | | | | message and trailing new line to STDERR_FILENO along with the ACK, instead of sending them over the socket. git-svn-id: https://svn.musicpd.org/mpd/trunk@5890 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
* Adding tagtypes command to list available tag types (takes metadata_to_useJ. Alexander Treuman2007-03-311-0/+8
| | | | | into account). git-svn-id: https://svn.musicpd.org/mpd/trunk@5792 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Adding playlistfind and playlistsearch commands for searching the currentJ. Alexander Treuman2007-02-241-1/+42
| | | | | playlist. git-svn-id: https://svn.musicpd.org/mpd/trunk@5420 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Don't initialize globals to zero (or NULL)Eric Wong2007-01-141-3/+3
| | | | | | | | 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
* Making "list any" fail with an error instead of OK with no results.J. Alexander Treuman2006-12-111-0/+6
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@5139 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Oops, forgot to add an interface to stored playlist editing. Here it is.J. Alexander Treuman2006-12-071-0/+20
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@5128 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* put back np's supperrior buffer2array, and fix my bug fix from change 4872Warren Dukes2006-10-061-8/+14
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4875 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Revert buffer2array() behavior back to tried and true 0.11.x versionEric Wong2006-10-061-14/+8
| | | | | | | | | | | | | | | | | Warren's fix in r4872 made phpMp work again, but also broke the unit tests completely (they work in this version). The version in 0.12.0 is far too buggy (it was from mpd-ke, what do you expect?). This one passes all the unit tests that the mpd-ke one passed, and should also work with phpMp when used with PHP magic quotes. This also means we can search on 100 (or more) tags at once, so no more arbitrary limits other than system memory. To run the unit tests, just do this: gcc -o t -DUNIT_TEST=1 src/buffer2array.c && ./t && echo OK git-svn-id: https://svn.musicpd.org/mpd/trunk@4874 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Replace strdup and {c,re,m}alloc with x* variants to check for OOM errorsEric Wong2006-08-261-1/+2
| | | | | | | | | | | | | | | | | | | I'm checking for zero-size allocations and assert()-ing them, so we can more easily get backtraces and debug problems, but we'll also allow -DNDEBUG people to live on the edge if they wish. We do not rely on errno when checking for OOM errors because some implementations of malloc do not set it, and malloc is commonly overridden by userspace wrappers. I've spent some time looking through the source and didn't find any obvious places where we would explicitly allocate 0 bytes, so we shouldn't trip any of those assertions. We also avoid allocating zero bytes because C libraries don't handle this consistently (some return NULL, some not); and it's dangerous either way. git-svn-id: https://svn.musicpd.org/mpd/trunk@4690 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* command.c: rerun mpd-indent.sh, no code changesEric Wong2006-08-261-136/+76
| | | | | | leave out initCommands to keep jat happy, and keep labels at the left hand side git-svn-id: https://svn.musicpd.org/mpd/trunk@4687 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
* command: static-fication since commandError is no longer a macroEric Wong2006-08-071-2/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4593 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Add PERMISSION_NONE define, for commands that require no permissionJ. Alexander Treuman2006-08-071-5/+5
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4583 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* Reformatting initCommands and fillBufferJ. Alexander Treuman2006-08-071-81/+55
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4582 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* remove overzealous asserts (wait for np to clean up his COMMAND_MAX_ARGS stuff)Warren Dukes2006-08-061-3/+0
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4575 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* renamce cstrtok to buffer2array. please don't rename functions; especially ↵Warren Dukes2006-08-061-2/+6
| | | | | to names that look extremely std-lib-ish. also, don't use isspace, apparently it's local dependent and potentially consideres ' ' or '\t' not to be a space, or considers other characters to be a space. git-svn-id: https://svn.musicpd.org/mpd/trunk@4574 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* gcc signedness and sparse fixesEric Wong2006-07-301-2/+2
| | | git-svn-id: https://svn.musicpd.org/mpd/trunk@4489 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* commandError() cleanups, fixup gcc checksEric Wong2006-07-301-20/+38
| | | | | | | stripped binary size reduced by 9k on my machine from making commandError a function. We'll print out error messages slightly slower before, but the smaller binary is more than worth it. git-svn-id: https://svn.musicpd.org/mpd/trunk@4488 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* command: fix find/search commands from the malloc reduction patchEric Wong2006-07-301-4/+7
| | | | | | | | | The most we ever use is for search/find, and that limits it to the number of tags we can have. Add one for the command, and one extra to catch errors clients may send us. Thanks to Qball for reporting this bug git-svn-id: https://svn.musicpd.org/mpd/trunk@4486 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* interface/connection malloc reductions from mpd-keEric Wong2006-07-301-263/+255
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch massively reduces the amount of heap allocations at the interface/command layer. Most commands with minimal output should not allocate memory from the heap at all. Things like repeatedly polling status, currentsong, and volume changes should be faster as a result, and more importantly, not a source of memory fragmentation. These changes should be safe in that there's no way for a remote-client to corrupt memory or otherwise do bad stuff to MPD, but an extra set of eyes to review would be good. Of course there's never any warranty :) No longer do we use FILE * structures in the interface, which means we don't have to allocate any new memory for most connections. Now, before you go on about losing the buffering that FILE * +implies+, remember that myfprintf() never took advantage of any of the stdio buffering features. To reduce the diff and make bugs easier to spot in the diff, I've kept myfprintf in places where we write to files (and not network interfaces). Expect myfprintf to go away entirely soon (we'll use fprintf for writing regular files). git-svn-id: https://svn.musicpd.org/mpd/trunk@4483 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* replace buffer2array() with cstrtok() from mpd-keEric Wong2006-07-291-15/+14
| | | | | | | | This modifies the string in place, and does not allocate any memory from the heap. This is considerably smaller than the function it replaces, and will be instrumental in getting the commands/conf malloc reductions done. git-svn-id: https://svn.musicpd.org/mpd/trunk@4481 09075e82-0dd4-0310-85a5-a0d7c8717e4f
* command.c: shorten common variable names to argc and argvEric Wong2006-07-291-209/+209
| | | | | | Any C programmer with half a clue knows they mean argArrayLength and argArray, and I find the code much easier to read and work with. git-svn-id: https://svn.musicpd.org/mpd/trunk@4480 09075e82-0dd4-0310-85a5-a0d7c8717e4f
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