path: root/apps/plugins/lua/rocklib.h
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2019-07-19lua events from rockboxWilliam Wilgus1-0/+2
This library allows events to be subscribed / recieved within a lua script most events in rb are synchronous so flags are set and later checked by a secondary thread to make them (semi?) asynchronous. There are a few caveats to be aware of: FIRST, The main lua state is halted till the lua callback(s) are finished Yielding will not return control to your script from within a callback Also, subsequent callbacks may be delayed by the code in your lua callback SECOND, You must store the value returned from the event_register function you might get away with it for a bit but gc will destroy your callback eventually if you do not store the event THIRD, You only get one cb per event type ["action", "button", "custom", "playback", "timer"] (Re-registration of an event overwrites the previous one) Usage: possible events =["action", "button", "custom", "playback", "timer"] local evX = rockev.register("event", cb_function, [timeout / flags]) cb_function([id] [, data]) ... end rockev.suspend(["event"/nil][true/false]) passing nil affects all events stops event from executing, any but the last event before re-enabling will be lost, passing false, unregistering or re-registering an event will clear the suspend rockev.trigger("event", [true/false], [id]) sets an event to triggered, NOTE!, CUSTOM_EVENT must be unset manually id is only passed to callback by custom and playback events rockev.unregister(evX) Use unregister(evX) to remove an event Unregistering is not necessary before script end, it will be cleaned up on script exit Change-Id: Iea12a5cc0c0295b955dcc1cdf2eec835ca7e354d
2018-11-17Lua fix crash on arm devicesWilliam Wilgus1-1/+1
This is a seemingly random bug that only affects (as far as I can tell) arm devices it isn't actually random as code changes cause it to appear/disappear based on alignment Change-Id: I4cbc4370677959319f8589fe454e854c45623468
2018-11-01Lua fix dir string constants and pcm_play_pause & pcm_set_frequencyWilliam Wilgus1-1/+1
String constants were already expanded in the first macro pcm functions were looking for stack position #1 when they needed stack pos #2 Change-Id: I7b4fb90953ab2395b77cbd550fdd257fafca6aae
2018-10-29Lua replace fscanfWilliam Wilgus1-0/+1
Rocklua was using the full fscanf implementation to simply read %ld for the file:read("*n") function wasting 1k on unneeded/unused functionality Instead, I've implemented a filetol function to duplicate it without the extra overhead using strtol which as an added bonus ERANGE errors now resolve to LONG_MIN and LONGMAX instead of integer overflow filetol() reads long int from an open file, skips preceding whitespaces returns -1 if error, 1 on success. *num set to LONG_MAX or LONG_MIN on overflow. If number of digits is > than LUAI_MAXNUMBER2STR filepointer will continue till the next non digit but buffer will stop being filled with characters. Preceding zero is ignored. Change-Id: Ia42d0f73c63a894625bca4581e9b7e1cc7387fd2
2018-10-15lua optimize current_path functionWilliam Wilgus1-1/+1
frees up around 500 bytes by using the builtin string functionality Change-Id: Icd4ec921d3fec339b8a4b7f80c9c63d51d4c101c
2018-10-08lua rocklib cleanupWilliam Wilgus1-4/+12
removes tslf allocations from do_menu and gui_syncyesno_run in favor of lua_newuserdata removes some luaL_opt functions in favor of equivalent lua_to functions moves some definitions to the rocklib.h file Change-Id: Iaacc3249b8f1af2c220ce59dead0050c66cb3b04
2018-09-14lua move RLIMAGE to own fileWilliam Wilgus1-0/+14
Change-Id: Icd10e4c348deec7729d4a6e2bf1152e1dfc70243
2014-04-02Revert "Update lua plugin to 5.2.3"Marcin Bukat1-1/+0
FILE typedef to *void needs more work to not break sim and application builds. I checked only a few random native builds unfortunately. Sorry for inconvenience.
2014-04-02Update lua plugin to 5.2.3Richard Quirk1-0/+1
Prior to this patch the Lua plugin used version 5.1.4. This change reduces the number of modifications in the Lua source using some new defines and because the upstream source is now more flexible. Unless otherwise stated, l*.[ch] files are taken unmodified from the upstream lua-5.2.3. fscanf.c: file descriptors in rockbox are just ints, they are hidden behind a void* now so liolib requires less modifications. fscanf is updated to use void* too. getc.c: this is a new file required for getc implementation in lauxlib.c lauxlib.c: LoadF replaced FILE* with int, the rockbox file descriptor int are cast to FILE* (actually void* due to typedef). getc uses the PREFIX version. stdin is not used, as per 5.1.4. lbaselib.c: now uses strspn in the number parsing. print uses DEBUGF now rather than being commented out. lbitlib.c: use the built-in version from 5.2.3 rather than Reuben Thomas's external library. Backwards compatible and adds some new bit operations. ldo.c: the LUAI_THROW/TRY defines are now in the core lua code, so have been removed from rockconf.h liolib.c: here the implementation has changed to use the LStream from the original source, and cast the FILE* pointers to int. This has reduced the number of modifications from the upstream version. llex.c: the only change from upstream is to remove the locale include. lmathlib.c: updated from the 5.2.3 version and re-applied the changes that were made vs 5.1.4 for random numbers and to remove unsupported float functions. loadlib.c: upstream version, with the 5.1.4 changes for missing functions. lobject.c: upstream version, with ctype.h added and sprintf changed to snprintf. loslib.c: upstream version with locale.h removed and 5.1.4 changes for unsupportable functions. lstrlib.c: sprintf changed to snprintf. ltable.c: upstream with the hashnum function from 5.1.4 to avoid frexp in luai_hashnum. luaconf.h: updated to 5.2.3 version, restored relevant parts from the original 5.1.4 configuration. The COMPAT defines that are no longer available are not included. lundump.c: VERSION macro conflicts with the core Rockbox equivalent. rocklib.c: luaL_reg is no longer available, replaced by luaL_Reg equivalent. Moved checkboolean/optboolean functions to this file and out of core lua files. luaL_getn is no longer available, replaced by luaL_rawlen. luaL_register is deprecated, use the newlib/setfuncs replacements. rli_init has to be called before setting up the newlib to avoid overwriting the rb table. use rli_checkboolean from rocklib.c. rocklua.c: new default bits library used, update the library loading code with idiomatic 5.2 code. strcspn.c: no longer needed, but strspn.c is required for strspn in lbaselib.c Change-Id: I0c7945c755f79083afe98ec117e1e8cf13de2651 Reviewed-on: Tested: Richard Quirk <> Reviewed-by: Marcin Bukat <>
2009-07-01Lua: because Rockbox doesn't support any current working directory ↵Maurus Cuelenaere1-1/+1
functionality, 'hack' loadlib so it replace '$' in LUA_PATH_DEFAULT with the directory wherein the current script is. git-svn-id: svn:// a1c6a512-1295-4272-9138-f99709370657
2009-06-01Lua: add touchscreen_set_mode & current_path (+ some constants)Maurus Cuelenaere1-0/+1
git-svn-id: svn:// a1c6a512-1295-4272-9138-f99709370657
2009-05-21Commit FS#9174: Lua scripting language by Dan EvertonMaurus Cuelenaere1-0/+29
git-svn-id: svn:// a1c6a512-1295-4272-9138-f99709370657