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When a client-specified URI has a scheme which is not supported, do
not try to open it as a local file, but provide a meaningful error
message.
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printRemoteUrlHandlers() cannot fail, and does not need a return
value.
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We want to remove gcc.h eventually. This takes care of all the G_GNUC_PRINTF
macros.
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We shouldn't pass strerror() where a format string is expected.
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The client may provide the names of idle events as arguments to the
"idle" command to inform MPD that it is only interested in these
events.
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We don't need to sanitize the path, because the mapper already checks
for malformed paths.
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Replace a custom data structure with a GLib one.
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check_bool() accepts only "0" or "1". The range check is superfluous.
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Due to a logic error, no value was valid for the boolean value
parser. Replace "||" with "&&".
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The function deletePlaylist() shouldn't be in playlist.c.
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The "long" result of strtol() was implicitly casted down to a 32 bit
integer. Add some range checking instead.
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Many command arguments must not be negative; add a separate
parser/checker function for that. For the same reason, add
check_bool(). This eliminates two strange special cases handlers from
check_int().
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There are some integers which have a "magic" -1 value which means
"undefined" or "nothing". All others can be converted to unsigned,
since they must not contain a negative number.
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Instead of returning 0 for success and -1 for failure, return true or
false. This seems more natural.
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Also add names for "error" and "ok". I don't like passing anonymous
integer codes around.
This is not yet complete: lots of functions (e.g. in playlist.c)
follow the same convention of -1/0, and these have to be adapted, too.
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http://xkcd.com/292/
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Eliminate CamelCase in all public and static functions.
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The typedef CommandHandlerFunction is only used once. Move its type
into the command struct.
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Send last modification timestamps to the client. This allows the
client to see when another client modifies a stored playlist.
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"listplaylists" returns a list of all stored playlists. This command
seems more elaborate than listing them below "lsinfo".
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The function print_spl_list() replaces the old function lsPlaylists()
from ls.c.
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Rename addToStoredPlaylist() to spl_append_uri(), and remove the
clearStoredPlaylist() macro.
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Renamed all public functions, prefix is "spl_".
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No CamelCase in file names.
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The list of commands is known at compile time. Instead of creating a
linked list on startup, we can just register all commands in a static
sorted array.
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The command pointers which are passed around aren't being modified -
in fact, no command pointer must be modified once it has been added to
the commandList.
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No CamelCase and no struct typedefs.
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client->permission is a bit set, and should be unsigned.
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When adding a local file, clients have to use the "file" URI schema
described in RFC 1738 3.10. By adding this schema to "urlhandlers", a
client can detect whether this feature is available.
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The undocumented command "add /" adds the full music database to the
playlist. Don't interpret this special path as a local file path.
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Clients which have authenticated via unix socket may add local files
to the MPD playlist, provided that they own the file.
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Returning the playlist_result value from a command handler does not
make sense. Call print_playlist_result() there, and forward its
return value.
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"idle" waits until something noteworthy happens on the server,
e.g. song change, playlist modified, database updated. This allows
clients to keep up to date without polling.
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player_get_audio_format() replaces getPlayerSampleRate(),
getPlayerBits(), getPlayerChannels().
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This replaces the attributes bits, channels, sampleRate.
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Since the return value cannot be -1 anymore, we can make it unsigned.
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The documentation for directory_update_init() was incorrect: a job ID
must be positive, not non-negative. If the update queue is full and
no job was created, it makes more sense to return 0 instead of -1,
because it is more consistent with the return value of isUpdatingDB().
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Remove clutter from directory.c. Everything which saves or loads
to/from the hard disk goes to directory_save.c, and code which sends
directory information to the client is moved into directory_print.c.
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With commit 6dcd7fea (if I am not mistaken) the error returned when
you try to save to an existing playlist is wrong. Instead of
MPD_ACK_ERROR_EXIST, MPD_ACK_ERROR_NO_EXIST is returned. This is
obviously wrong and breaks gmpc.
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Yet another CamelCase removal patch.
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The same can be achieved with directory_print(db_get_directory()).
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Taming the directory.c monster, part II: move the database management
stuff to database. directory.c should only contain code which works
on directory objects.
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The source directory.c mixes several libraries: directory object
management, database management and database update, resulting in a
1000+ line monster. Move the whole database update code to update.c.
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This got broken when listHandlerFunc was removed. Since we no
longer need it and it's confusing, remove processCommandInternal
and just use process_command.
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commands should really not behave differently if they're issued
inside a command list or not; so stop having special handler
functions to deal with them. "update" was the only command
that used this functionality and I changed that in the last
commit to serialize access.
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Now the "update" command can be issued multiple times regardless
of whether the client is in list mode or not.
We serialize the update tasks to prevent updates from trampling
over each other and will spawn another update task
once the current one is finished updating and reaped.
Right now we cap the queue size to 32 which is probably enough (I
bet most people usually run update with no argument anyways);
but we can make it grow/shrink dynamically if needed. There'll
still be a hard-coded limit to prevent DoS attacks, though.
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Do full C99 integer type conversion in all modules which were not
touched by Eric's merged patch.
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This only breaks "update" under list command mode and
no other commands. This can be done more optimally
without the extra heap allocation via xstrdup(); but is
uncommon enough to not matter.
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