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Fix modstore/favourites hang by adding asynchronous lua job support

master
sapier 2013-11-26 18:15:31 +01:00
parent b08d7558de
commit 2e66aca357
27 changed files with 2271 additions and 559 deletions
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19
builtin/async_env.lua Normal file
View File

@ -0,0 +1,19 @@
engine.log("info","Initializing Asynchronous environment")
dofile(SCRIPTDIR .. DIR_DELIM .. "misc_helpers.lua")
function engine.job_processor(serialized_function, serialized_data)
local fct = marshal.decode(serialized_function)
local params = marshal.decode(serialized_data)
local retval = marshal.encode(nil)
if fct ~= nil and type(fct) == "function" then
local result = fct(params)
retval = marshal.encode(result)
else
engine.log("error","ASYNC WORKER: unable to deserialize function")
end
return retval,retval:len()
end

59
builtin/async_event.lua Normal file
View File

@ -0,0 +1,59 @@
local tbl = engine or minetest
tbl.async_jobs = {}
if engine ~= nil then
function tbl.async_event_handler(jobid, serialized_retval)
local retval = nil
if serialized_retval ~= "ERROR" then
retval= marshal.decode(serialized_retval)
else
tbl.log("error","Error fetching async result")
end
assert(type(tbl.async_jobs[jobid]) == "function")
tbl.async_jobs[jobid](retval)
tbl.async_jobs[jobid] = nil
end
else
minetest.register_globalstep(
function(dtime)
local list = tbl.get_finished_jobs()
for i=1,#list,1 do
local retval = marshal.decode(list[i].retval)
assert(type(tbl.async_jobs[jobid]) == "function")
tbl.async_jobs[list[i].jobid](retval)
tbl.async_jobs[list[i].jobid] = nil
end
end)
end
function tbl.handle_async(fct, parameters, callback)
--serialize fct
local serialized_fct = marshal.encode(fct)
assert(marshal.decode(serialized_fct) ~= nil)
--serialize parameters
local serialized_params = marshal.encode(parameters)
if serialized_fct == nil or
serialized_params == nil or
serialized_fct:len() == 0 or
serialized_params:len() == 0 then
return false
end
local jobid = tbl.do_async_callback( serialized_fct,
serialized_fct:len(),
serialized_params,
serialized_params:len())
tbl.async_jobs[jobid] = callback
return true
end

35
builtin/mainmenu.lua
View File

@ -24,6 +24,7 @@ dofile(scriptpath .. DIR_DELIM .. "modstore.lua")
dofile(scriptpath .. DIR_DELIM .. "gamemgr.lua")
dofile(scriptpath .. DIR_DELIM .. "mm_textures.lua")
dofile(scriptpath .. DIR_DELIM .. "mm_menubar.lua")
dofile(scriptpath .. DIR_DELIM .. "async_event.lua")
menu = {}
local tabbuilder = {}
@ -196,6 +197,21 @@ function menu.render_texture_pack_list(list)
return retval
end
--------------------------------------------------------------------------------
function menu.asyncOnlineFavourites()
menu.favorites = {}
engine.handle_async(
function(param)
return engine.get_favorites("online")
end,
nil,
function(result)
menu.favorites = result
engine.event_handler("Refresh")
end
)
end
--------------------------------------------------------------------------------
function menu.init()
--init menu data
@ -208,7 +224,7 @@ function menu.init()
end
if engine.setting_getbool("public_serverlist") then
menu.favorites = engine.get_favorites("online")
menu.asyncOnlineFavourites()
else
menu.favorites = engine.get_favorites("local")
end
@ -489,7 +505,7 @@ function tabbuilder.handle_multiplayer_buttons(fields)
engine.setting_set("public_serverlist", fields["cb_public_serverlist"])
if engine.setting_getbool("public_serverlist") then
menu.favorites = engine.get_favorites("online")
menu.asyncOnlineFavourites()
else
menu.favorites = engine.get_favorites("local")
end
@ -583,6 +599,7 @@ function tabbuilder.handle_server_buttons(fields)
gamedata.selected_world = filterlist.get_raw_index(worldlist,selected)
engine.setting_set("port",gamedata.port)
menu.update_last_game(gamedata.selected_world)
engine.start()
end
@ -1124,6 +1141,12 @@ function tabbuilder.checkretval(retval)
if retval.skipformupdate ~= nil then
tabbuilder.skipformupdate = retval.skipformupdate
end
if retval.ignore_menu_quit == true then
tabbuilder.ignore_menu_quit = true
else
tabbuilder.ignore_menu_quit = false
end
end
end
@ -1194,6 +1217,10 @@ end
engine.event_handler = function(event)
if event == "MenuQuit" then
if tabbuilder.is_dialog then
if tabbuilder.ignore_menu_quit then
return
end
tabbuilder.is_dialog = false
tabbuilder.show_buttons = true
tabbuilder.current_tab = engine.setting_get("main_menu_tab")
@ -1203,6 +1230,10 @@ engine.event_handler = function(event)
engine.close()
end
end
if event == "Refresh" then
update_menu()
end
end
--------------------------------------------------------------------------------

2
builtin/modmgr.lua
View File

@ -54,7 +54,7 @@ function modmgr.extract(modfile)
local tempfolder = os.tempfolder()
if tempfolder ~= nil and
tempfodler ~= "" then
tempfolder ~= "" then
engine.create_dir(tempfolder)
engine.extract_zip(modfile.name,tempfolder)
return tempfolder

209
builtin/modstore.lua
View File

@ -32,10 +32,11 @@ function modstore.init()
modstore.basetexturedir = engine.get_texturepath() .. DIR_DELIM .. "base" ..
DIR_DELIM .. "pack" .. DIR_DELIM
modstore.current_list = nil
modstore.lastmodtitle = ""
modstore.details_cache = {}
modstore.current_list = nil
end
--------------------------------------------------------------------------------
function modstore.nametoindex(name)
@ -60,8 +61,7 @@ function modstore.gettab(tabname)
end
if tabname == "dialog_modstore_search" then
retval = modstore.getsearchpage()
is_modstore_tab = true
end
@ -70,11 +70,16 @@ function modstore.gettab(tabname)
end
if tabname == "modstore_mod_installed" then
return "size[6,2]label[0.25,0.25;Mod: " .. modstore.lastmodtitle ..
return "size[6,2]label[0.25,0.25;Mod(s): " .. modstore.lastmodtitle ..
" installed successfully]" ..
"button[2.5,1.5;1,0.5;btn_confirm_mod_successfull;ok]"
end
if tabname == "modstore_downloading" then
return "size[6,2]label[0.25,0.25;Dowloading " .. modstore.lastmodtitle ..
" please wait]"
end
return ""
end
@ -91,8 +96,6 @@ end
--------------------------------------------------------------------------------
function modstore.handle_buttons(current_tab,fields)
modstore.lastmodtitle = ""
if fields["modstore_tab"] then
local index = tonumber(fields["modstore_tab"])
@ -121,7 +124,16 @@ function modstore.handle_buttons(current_tab,fields)
end
end
if fields["btn_hidden_close_download"] then
return {
current_tab = "modstore_mod_installed",
is_dialog = true,
show_buttons = false
}
end
if fields["btn_confirm_mod_successfull"] then
modstore.lastmodtitle = ""
return {
current_tab = modstore.tabnames[1],
is_dialog = true,
@ -136,27 +148,61 @@ function modstore.handle_buttons(current_tab,fields)
local modlistentry =
modstore.current_list.page * modstore.modsperpage + i
local moddetails = modstore.get_details(modstore.current_list.data[modlistentry].id)
if modstore.modlist_unsorted.data[modlistentry] ~= nil and
modstore.modlist_unsorted.data[modlistentry].details ~= nil then
local moddetails = modstore.modlist_unsorted.data[modlistentry].details
if modstore.lastmodtitle ~= "" then
modstore.lastmodtitle = modstore.lastmodtitle .. ", "
end
modstore.lastmodtitle = modstore.lastmodtitle .. moddetails.title
engine.handle_async(
function(param)
local fullurl = engine.setting_get("modstore_download_url") ..
moddetails.download_url
local modfilename = os.tempfolder() .. ".zip"
if engine.download_file(fullurl,modfilename) then
modmgr.installmod(modfilename,moddetails.basename)
os.remove(modfilename)
modstore.lastmodtitle = modstore.current_list.data[modlistentry].title
param.moddetails.download_url
if engine.download_file(fullurl,param.filename) then
return {
current_tab = "modstore_mod_installed",
is_dialog = true,
show_buttons = false
moddetails = param.moddetails,
filename = param.filename,
successfull = true
}
else
gamedata.errormessage = "Unable to download " ..
moddetails.download_url .. " (internet connection?)"
return {
modtitle = param.title,
successfull = false
}
end
end,
{
moddetails = moddetails,
filename = os.tempfolder() .. ".zip"
},
function(result)
if result.successfull then
modmgr.installmod(result.filename,result.moddetails.basename)
os.remove(result.filename)
else
gamedata.errormessage = "Failed to download " .. result.moddetails.title
end
engine.button_handler({btn_hidden_close_download=true})
end
)
return {
current_tab = "modstore_downloading",
is_dialog = true,
show_buttons = false,
ignore_menu_quit = true
}
else
gamedata.errormessage =
"Internal modstore error please leave modstore and reopen! (Sorry)"
end
end
end
@ -165,7 +211,19 @@ end
--------------------------------------------------------------------------------
function modstore.update_modlist()
modstore.modlist_unsorted = {}
modstore.modlist_unsorted.data = engine.get_modstore_list()
modstore.modlist_unsorted.data = {}
modstore.modlist_unsorted.pagecount = 1
modstore.modlist_unsorted.page = 0
engine.handle_async(
function(param)
return engine.get_modstore_list()
end,
nil,
function(result)
if result ~= nil then
modstore.modlist_unsorted = {}
modstore.modlist_unsorted.data = result
if modstore.modlist_unsorted.data ~= nil then
modstore.modlist_unsorted.pagecount =
@ -175,8 +233,42 @@ function modstore.update_modlist()
modstore.modlist_unsorted.pagecount = 1
end
modstore.modlist_unsorted.page = 0
modstore.fetchdetails()
engine.event_handler("Refresh")
end
end
)
end
--------------------------------------------------------------------------------
function modstore.fetchdetails()
for i=1,#modstore.modlist_unsorted.data,1 do
engine.handle_async(
function(param)
param.details = engine.get_modstore_details(tostring(param.modid))
return param
end,
{
modid=modstore.modlist_unsorted.data[i].id,
listindex=i
},
function(result)
if result ~= nil and
modstore.modlist_unsorted ~= nil
and modstore.modlist_unsorted.data ~= nil and
modstore.modlist_unsorted.data[result.listindex] ~= nil and
modstore.modlist_unsorted.data[result.listindex].id ~= nil then
modstore.modlist_unsorted.data[result.listindex].details = result.details
engine.event_handler("Refresh")
end
end
)
end
end
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
function modstore.getmodlist(list)
local retval = ""
@ -201,33 +293,72 @@ function modstore.getmodlist(list)
for i=(list.page * modstore.modsperpage) +1, endmod, 1 do
--getmoddetails
local details = modstore.get_details(list.data[i].id)
local details = list.data[i].details
-- if details == nil then
-- details = modstore.get_details(list.data[i].id)
-- end
if details == nil then
details = {}
details.title = list.data[i].title
details.author = ""
details.rating = -1
details.description = ""
end
if details ~= nil then
local screenshot_ypos = (i-1 - (list.page * modstore.modsperpage))*1.9 +0.2
retval = retval .. "box[0," .. screenshot_ypos .. ";11.4,1.75;#FFFFFF]"
if details.basename then
--screenshot
if details.screenshot_url ~= nil and
details.screenshot_url ~= "" then
if list.data[i].texturename == nil then
local fullurl = engine.setting_get("modstore_download_url") ..
details.screenshot_url
local filename = os.tempfolder()
if engine.download_file(fullurl,filename) then
list.data[i].texturename = filename
local filename = os.tempfolder() .. "_MID_" .. list.data[i].id
list.data[i].texturename = "in progress"
engine.handle_async(
function(param)
param.successfull = engine.download_file(param.fullurl,param.filename)
return param
end,
{
fullurl = fullurl,
filename = filename,
listindex = i,
modid = list.data[i].id
},
function(result)
if modstore.modlist_unsorted and
modstore.modlist_unsorted.data and
#modstore.modlist_unsorted.data >= result.listindex and
modstore.modlist_unsorted.data[result.listindex].id == result.modid then
if result.successfull then
modstore.modlist_unsorted.data[result.listindex].texturename = result.filename
else
modstore.modlist_unsorted.data[result.listindex].texturename = modstore.basetexturedir .. "no_screenshot.png"
end
engine.event_handler("Refresh")
end
end
)
end
else
if list.data[i].texturename == nil then
list.data[i].texturename = modstore.basetexturedir .. "no_screenshot.png"
end
end
if list.data[i].texturename ~= nil and
list.data[i].texturename ~= "in progress" then
retval = retval .. "image[0,".. screenshot_ypos .. ";3,2;" ..
engine.formspec_escape(list.data[i].texturename) .. "]"
end
end
--title + author
retval = retval .."label[2.75," .. screenshot_ypos .. ";" ..
@ -239,13 +370,15 @@ function modstore.getmodlist(list)
engine.formspec_escape(details.description) .. ";]"
--rating
local ratingy = screenshot_ypos + 0.6
retval = retval .."label[10.1," .. ratingy .. ";" ..
fgettext("Rating") .. ": " .. details.rating .."]"
retval = retval .."label[9.1," .. ratingy .. ";" ..
fgettext("Rating") .. ":]"
retval = retval .. "label[11.1," .. ratingy .. ";" .. details.rating .."]"
if details.basename then
--install button
local buttony = screenshot_ypos + 1.2
local buttonnumber = (i - (list.page * modstore.modsperpage))
retval = retval .."button[9.6," .. buttony .. ";2,0.5;btn_install_mod_" .. buttonnumber .. ";"
retval = retval .."button[9.1," .. buttony .. ";2.5,0.5;btn_install_mod_" .. buttonnumber .. ";"
if modmgr.mod_exists(details.basename) then
retval = retval .. fgettext("re-Install") .."]"
@ -254,6 +387,7 @@ function modstore.getmodlist(list)
end
end
end
end
modstore.current_list = list
@ -261,14 +395,11 @@ function modstore.getmodlist(list)
end
--------------------------------------------------------------------------------
function modstore.get_details(modid)
function modstore.getsearchpage()
local retval = ""
if modstore.details_cache[modid] ~= nil then
return modstore.details_cache[modid]
end
--TODO implement search!
local retval = engine.get_modstore_details(tostring(modid))
modstore.details_cache[modid] = retval
return retval
return retval;
end

57
doc/menu_lua_api.txt
View File

@ -33,9 +33,9 @@ engine.close()
Filesystem:
engine.get_scriptdir()
^ returns directory of script
engine.get_modpath()
engine.get_modpath() (possible in async calls)
^ returns path to global modpath
engine.get_modstore_details(modid)
engine.get_modstore_details(modid) (possible in async calls)
^ modid numeric id of mod in modstore
^ returns {
id = <numeric id of mod in modstore>,
@ -47,7 +47,7 @@ engine.get_modstore_details(modid)
license = <short description of license>,
rating = <float value of current rating>
}
engine.get_modstore_list()
engine.get_modstore_list() (possible in async calls)
^ returns {
[1] = {
id = <numeric id of mod in modstore>,
@ -55,19 +55,21 @@ engine.get_modstore_list()
basename = <basename for mod>
}
}
engine.get_gamepath()
engine.get_gamepath() (possible in async calls)
^ returns path to global gamepath
engine.get_dirlist(path,onlydirs)
engine.get_texturepath() (possible in async calls)
^ returns path to default textures
engine.get_dirlist(path,onlydirs) (possible in async calls)
^ path to get subdirs from
^ onlydirs should result contain only dirs?
^ returns list of folders within path
engine.create_dir(absolute_path)
engine.create_dir(absolute_path) (possible in async calls)
^ absolute_path to directory to create (needs to be absolute)
^ returns true/false
engine.delete_dir(absolute_path)
engine.delete_dir(absolute_path) (possible in async calls)
^ absolute_path to directory to delete (needs to be absolute)
^ returns true/false
engine.copy_dir(source,destination,keep_soure)
engine.copy_dir(source,destination,keep_soure) (possible in async calls)
^ source folder
^ destination folder
^ keep_source DEFAULT true --> if set to false source is deleted after copying
@ -76,11 +78,11 @@ engine.extract_zip(zipfile,destination) [unzip within path required]
^ zipfile to extract
^ destination folder to extract to
^ returns true/false
engine.download_file(url,target)
engine.download_file(url,target) (possible in async calls)
^ url to download
^ target to store to
^ returns true/false
engine.get_version()
engine.get_version() (possible in async calls)
^ returns current minetest version
engine.sound_play(spec, looped) -> handle
^ spec = SimpleSoundSpec (see lua-api.txt)
@ -105,10 +107,10 @@ engine.get_game(index)
DEPRECATED:
addon_mods_paths = {[1] = <path>,},
}
engine.get_games() -> table of all games in upper format
engine.get_games() -> table of all games in upper format (possible in async calls)
Favorites:
engine.get_favorites(location) -> list of favorites
engine.get_favorites(location) -> list of favorites (possible in async calls)
^ location: "local" or "online"
^ returns {
[1] = {
@ -128,21 +130,21 @@ engine.get_favorites(location) -> list of favorites
engine.delete_favorite(id, location) -> success
Logging:
engine.debug(line)
engine.debug(line) (possible in async calls)
^ Always printed to stderr and logfile (print() is redirected here)
engine.log(line)
engine.log(loglevel, line)
engine.log(line) (possible in async calls)
engine.log(loglevel, line) (possible in async calls)
^ loglevel one of "error", "action", "info", "verbose"
Settings:
engine.setting_set(name, value)
engine.setting_get(name) -> string or nil
engine.setting_get(name) -> string or nil (possible in async calls)
engine.setting_setbool(name, value)
engine.setting_getbool(name) -> bool or nil
engine.setting_getbool(name) -> bool or nil (possible in async calls)
engine.setting_save() -> nil, save all settings to config file
Worlds:
engine.get_worlds() -> list of worlds
engine.get_worlds() -> list of worlds (possible in async calls)
^ returns {
[1] = {
path = <full path to world>,
@ -174,7 +176,7 @@ engine.gettext(string) -> string
fgettext(string, ...) -> string
^ call engine.gettext(string), replace "$1"..."$9" with the given
^ extra arguments, call engine.formspec_escape and return the result
engine.parse_json(string[, nullvalue]) -> something
engine.parse_json(string[, nullvalue]) -> something (possible in async calls)
^ see minetest.parse_json (lua_api.txt)
dump(obj, dumped={})
^ Return object serialized as a string
@ -182,9 +184,24 @@ string:split(separator)
^ eg. string:split("a,b", ",") == {"a","b"}
string:trim()
^ eg. string.trim("\n \t\tfoo bar\t ") == "foo bar"
minetest.is_yes(arg)
minetest.is_yes(arg) (possible in async calls)
^ returns whether arg can be interpreted as yes
Async:
engine.handle_async(async_job,parameters,finished)
^ execute a function asynchronously
^ async_job is a function receiving one parameter and returning one parameter
^ parameters parameter table passed to async_job
^ finished function to be called once async_job has finished
^ the result of async_job is passed to this function
Limitations of Async operations
-No access to global lua variables, don't even try
-Limited set of available functions
e.g. No access to functions modifying menu like engine.start,engine.close,
engine.file_open_dialog
Class reference
----------------
Settings: see lua_api.txt

8
src/guiEngine.cpp
View File

@ -286,6 +286,8 @@ void GUIEngine::run()
cloudPostProcess();
else
sleep_ms(25);
m_script->Step();
}
}
@ -576,3 +578,9 @@ void GUIEngine::stopSound(s32 handle)
{
m_sound_manager->stopSound(handle);
}
/******************************************************************************/
unsigned int GUIEngine::DoAsync(std::string serialized_fct,
std::string serialized_params) {
return m_script->DoAsync(serialized_fct,serialized_params);
}

5
src/guiEngine.h
View File

@ -166,6 +166,9 @@ public:
return m_scriptdir;
}
/** pass async callback to scriptengine **/
unsigned int DoAsync(std::string serialized_fct,std::string serialized_params);
private:
/** find and run the main menu script */
@ -244,7 +247,7 @@ private:
* @param url url to download
* @param target file to store to
*/
bool downloadFile(std::string url,std::string target);
static bool downloadFile(std::string url,std::string target);
/** array containing pointers to current specified texture layers */
video::ITexture* m_textures[TEX_LAYER_MAX];

2
src/jthread/CMakeLists.txt
View File

@ -2,10 +2,12 @@ if( UNIX )
set(JTHREAD_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/pthread/jmutex.cpp
${CMAKE_CURRENT_SOURCE_DIR}/pthread/jthread.cpp
${CMAKE_CURRENT_SOURCE_DIR}/pthread/jsemaphore.cpp
PARENT_SCOPE)
else( UNIX )
set(JTHREAD_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/win32/jmutex.cpp
${CMAKE_CURRENT_SOURCE_DIR}/win32/jthread.cpp
${CMAKE_CURRENT_SOURCE_DIR}/win32/jsemaphore.cpp
PARENT_SCOPE)
endif( UNIX )

50
src/jthread/jsemaphore.h Normal file
View File

@ -0,0 +1,50 @@
/*
Minetest
Copyright (C) 2013 sapier, < sapier AT gmx DOT net >
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef JSEMAPHORE_H_
#define JSEMAPHORE_H_
#if defined(WIN32)
#include <windows.h>
#define MAX_SEMAPHORE_COUNT 1024
#else
#include <pthread.h>
#include <semaphore.h>
#endif
class JSemaphore {
public:
JSemaphore();
~JSemaphore();
JSemaphore(int initval);
void Post();
void Wait();
int GetValue();
private:
#if defined(WIN32)
HANDLE m_hSemaphore;
#else
sem_t m_semaphore;
#endif
};
#endif /* JSEMAPHORE_H_ */

1
src/jthread/jthread.h
View File

@ -43,6 +43,7 @@ public:
JThread();
virtual ~JThread();
int Start();
void Stop();
int Kill();
virtual void *Thread() = 0;
bool IsRunning();

48
src/jthread/pthread/jsemaphore.cpp Normal file
View File

@ -0,0 +1,48 @@
/*
Minetest
Copyright (C) 2013 sapier, < sapier AT gmx DOT net >
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "jthread/jsemaphore.h"
JSemaphore::JSemaphore() {
sem_init(&m_semaphore,0,0);
}
JSemaphore::~JSemaphore() {
sem_destroy(&m_semaphore);
}
JSemaphore::JSemaphore(int initval) {
sem_init(&m_semaphore,0,initval);
}
void JSemaphore::Post() {
sem_post(&m_semaphore);
}
void JSemaphore::Wait() {
sem_wait(&m_semaphore);
}
int JSemaphore::GetValue() {
int retval = 0;
sem_getvalue(&m_semaphore,&retval);
return retval;
}

6
src/jthread/pthread/jthread.cpp
View File

@ -42,6 +42,12 @@ JThread::~JThread()
Kill();
}
void JThread::Stop() {
runningmutex.Lock();
running = false;
runningmutex.Unlock();
}
int JThread::Start()
{
int status;

64
src/jthread/win32/jsemaphore.cpp Normal file
View File

@ -0,0 +1,64 @@
/*
Minetest
Copyright (C) 2013 sapier, < sapier AT gmx DOT net >
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "jthread/jsemaphore.h"
JSemaphore::JSemaphore() {
m_hSemaphore = CreateSemaphore(
0,
0,
MAX_SEMAPHORE_COUNT,
0);
}
JSemaphore::~JSemaphore() {
CloseHandle(&m_hSemaphore);
}
JSemaphore::JSemaphore(int initval) {
m_hSemaphore = CreateSemaphore(
0,
initval,
MAX_SEMAPHORE_COUNT,
0);
}
void JSemaphore::Post() {
ReleaseSemaphore(
m_hSemaphore,
1,
0);
}
void JSemaphore::Wait() {
WaitForSingleObject(
m_hSemaphore,
INFINITE);
}
int JSemaphore::GetValue() {
long int retval = 0;
ReleaseSemaphore(
m_hSemaphore,
0,
&retval);
return retval;
}

6
src/jthread/win32/jthread.cpp
View File

@ -43,6 +43,12 @@ JThread::~JThread()
Kill();
}
void JThread::Stop() {
runningmutex.Lock();
running = false;
runningmutex.Unlock();
}
int JThread::Start()
{
if (!mutexinit)

9
src/main.cpp
View File

@ -85,6 +85,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "database-leveldb.h"
#endif
#if USE_CURL
#include "curl.h"
#endif
/*
Settings.
These are loaded from the config file.
@ -993,6 +997,11 @@ int main(int argc, char *argv[])
srand(time(0));
mysrand(time(0));
#if USE_CURL
CURLcode res = curl_global_init(CURL_GLOBAL_DEFAULT);
assert(res == CURLE_OK);
#endif
/*
Run unit tests
*/

2
src/script/lua_api/CMakeLists.txt
View File

@ -16,6 +16,8 @@ set(common_SCRIPT_LUA_API_SRCS
${CMAKE_CURRENT_SOURCE_DIR}/l_util.cpp
${CMAKE_CURRENT_SOURCE_DIR}/l_vmanip.cpp
${CMAKE_CURRENT_SOURCE_DIR}/l_settings.cpp
${CMAKE_CURRENT_SOURCE_DIR}/l_async_events.cpp
${CMAKE_CURRENT_SOURCE_DIR}/marshall.c
PARENT_SCOPE)
# Used by client only

396
src/script/lua_api/l_async_events.cpp Normal file
View File

@ -0,0 +1,396 @@
/*
Minetest
Copyright (C) 2013 sapier, <sapier AT gmx DOT net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
extern "C" {
#include "lua.h"
#include "lauxlib.h"
#include "lualib.h"
int luaopen_marshal(lua_State *L);
}
#include <stdio.h>
#include "l_async_events.h"
#include "log.h"
#include "filesys.h"
#include "porting.h"
//TODO replace by ShadowNinja version not yet merged to master
static int script_error_handler(lua_State *L) {
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
return 1;
}
lua_getfield(L, -1, "traceback");
if (!lua_isfunction(L, -1)) {
lua_pop(L, 2);
return 1;
}
lua_pushvalue(L, 1);
lua_pushinteger(L, 2);
lua_call(L, 2, 1);
return 1;
}
/******************************************************************************/
static void scriptError(const char *fmt, ...)
{
va_list argp;
va_start(argp, fmt);
char buf[10000];
vsnprintf(buf, 10000, fmt, argp);
va_end(argp);
errorstream<<"ERROR: "<<buf;
fprintf(stderr,"ERROR: %s\n",buf);
}
/******************************************************************************/
AsyncEngine::AsyncEngine() :
m_initDone(false),
m_JobIdCounter(0)
{
assert(m_JobQueueMutex.Init() == 0);
assert(m_ResultQueueMutex.Init() == 0);
}
/******************************************************************************/
AsyncEngine::~AsyncEngine()
{
/** request all threads to stop **/
for (std::vector<AsyncWorkerThread*>::iterator i= m_WorkerThreads.begin();
i != m_WorkerThreads.end();i++) {
(*i)->Stop();
}
/** wakeup all threads **/
for (std::vector<AsyncWorkerThread*>::iterator i= m_WorkerThreads.begin();
i != m_WorkerThreads.end();i++) {
m_JobQueueCounter.Post();
}
/** wait for threads to finish **/
for (std::vector<AsyncWorkerThread*>::iterator i= m_WorkerThreads.begin();
i != m_WorkerThreads.end();i++) {
(*i)->Wait();
}
/** force kill all threads **/
for (std::vector<AsyncWorkerThread*>::iterator i= m_WorkerThreads.begin();
i != m_WorkerThreads.end();i++) {
(*i)->Kill();
delete *i;
}
m_JobQueueMutex.Lock();
m_JobQueue.clear();
m_JobQueueMutex.Unlock();
m_WorkerThreads.clear();
}
/******************************************************************************/
bool AsyncEngine::registerFunction(const char* name, lua_CFunction fct) {
if (m_initDone) return false;
m_FunctionList[name] = fct;
return true;
}
/******************************************************************************/
void AsyncEngine::Initialize(unsigned int numengines) {
m_initDone = true;
for (unsigned int i=0; i < numengines; i ++) {
AsyncWorkerThread* toadd = new AsyncWorkerThread(this,i);
m_WorkerThreads.push_back(toadd);
toadd->Start();
}
}
/******************************************************************************/
unsigned int AsyncEngine::doAsyncJob(std::string fct, std::string params) {
m_JobQueueMutex.Lock();
LuaJobInfo toadd;
toadd.JobId = m_JobIdCounter++;
toadd.serializedFunction = fct;
toadd.serializedParams = params;
m_JobQueue.push_back(toadd);
m_JobQueueCounter.Post();
m_JobQueueMutex.Unlock();
return toadd.JobId;
}
/******************************************************************************/
LuaJobInfo AsyncEngine::getJob() {
m_JobQueueCounter.Wait();
m_JobQueueMutex.Lock();
LuaJobInfo retval;
if (m_JobQueue.size() != 0) {
retval = m_JobQueue.front();
m_JobQueue.erase((m_JobQueue.begin()));
}
m_JobQueueMutex.Unlock();
return retval;
}
/******************************************************************************/
void AsyncEngine::putJobResult(LuaJobInfo result) {
m_ResultQueueMutex.Lock();
m_ResultQueue.push_back(result);
m_ResultQueueMutex.Unlock();
}
/******************************************************************************/
void AsyncEngine::Step(lua_State *L) {
m_ResultQueueMutex.Lock();
while(!m_ResultQueue.empty()) {
LuaJobInfo jobdone = m_ResultQueue.front();
m_ResultQueue.erase(m_ResultQueue.begin());
lua_getglobal(L, "engine");
lua_getfield(L, -1, "async_event_handler");
if(lua_isnil(L, -1))
assert("Someone managed to destroy a async callback in engine!" == 0);
luaL_checktype(L, -1, LUA_TFUNCTION);
lua_pushinteger(L, jobdone.JobId);
lua_pushlstring(L, jobdone.serializedResult.c_str(),
jobdone.serializedResult.length());
if(lua_pcall(L, 2, 0, 0)) {
scriptError("Async ENGINE step: %s", lua_tostring(L, -1));
}
lua_pop(L,1);
}
m_ResultQueueMutex.Unlock();
}
/******************************************************************************/
void AsyncEngine::PushFinishedJobs(lua_State* L) {
//Result Table
m_ResultQueueMutex.Lock();
unsigned int index=1;
lua_newtable(L);
int top = lua_gettop(L);
while(!m_ResultQueue.empty()) {
LuaJobInfo jobdone = m_ResultQueue.front();
m_ResultQueue.erase(m_ResultQueue.begin());
lua_pushnumber(L,index);
lua_newtable(L);
int top_lvl2 = lua_gettop(L);
lua_pushstring(L,"jobid");
lua_pushnumber(L,jobdone.JobId);
lua_settable(L, top_lvl2);
lua_pushstring(L,"retval");
lua_pushstring(L, jobdone.serializedResult.c_str());
lua_settable(L, top_lvl2);
lua_settable(L, top);
index++;
}
m_ResultQueueMutex.Unlock();
}
/******************************************************************************/
void AsyncEngine::PrepareEnvironment(lua_State* L, int top) {
for(std::map<std::string,lua_CFunction>::iterator i = m_FunctionList.begin();
i != m_FunctionList.end(); i++) {
lua_pushstring(L,i->first.c_str());
lua_pushcfunction(L,i->second);
lua_settable(L, top);
}
}
/******************************************************************************/
int async_worker_ErrorHandler(lua_State *L) {
lua_getfield(L, LUA_GLOBALSINDEX, "debug");
if (!lua_istable(L, -1)) {
lua_pop(L, 1);
return 1;
}
lua_getfield(L, -1, "traceback");
if (!lua_isfunction(L, -1)) {
lua_pop(L, 2);
return 1;
}
lua_pushvalue(L, 1);
lua_pushinteger(L, 2);
lua_call(L, 2, 1);
return 1;
}
/******************************************************************************/
AsyncWorkerThread::AsyncWorkerThread(AsyncEngine* jobdispatcher,
unsigned int numthreadnumber) :
m_JobDispatcher(jobdispatcher),
m_luaerrorhandler(-1),
m_threadnum(numthreadnumber)
{
// create luastack
m_LuaStack = luaL_newstate();
// load basic lua modules
luaL_openlibs(m_LuaStack);
// load serialization functions
luaopen_marshal(m_LuaStack);
}
/******************************************************************************/
AsyncWorkerThread::~AsyncWorkerThread() {
assert(IsRunning() == false);
lua_close(m_LuaStack);
}
/******************************************************************************/
void* AsyncWorkerThread::worker_thread_main() {
//register thread for error logging
char number[21];
snprintf(number,sizeof(number),"%d",m_threadnum);
log_register_thread(std::string("AsyncWorkerThread_") + number);
/** prepare job lua environment **/
lua_newtable(m_LuaStack);
lua_setglobal(m_LuaStack, "engine");
lua_getglobal(m_LuaStack, "engine");
int top = lua_gettop(m_LuaStack);
lua_pushstring(m_LuaStack, DIR_DELIM);
lua_setglobal(m_LuaStack, "DIR_DELIM");
lua_pushstring(m_LuaStack,
std::string(porting::path_share + DIR_DELIM + "builtin").c_str());
lua_setglobal(m_LuaStack, "SCRIPTDIR");
m_JobDispatcher->PrepareEnvironment(m_LuaStack,top);
std::string asyncscript =
porting::path_share + DIR_DELIM + "builtin"
+ DIR_DELIM + "async_env.lua";
lua_pushcfunction(m_LuaStack, async_worker_ErrorHandler);
m_luaerrorhandler = lua_gettop(m_LuaStack);
if(!runScript(asyncscript)) {
infostream
<< "AsyncWorkderThread::worker_thread_main execution of async base environment failed!"
<< std::endl;
assert("no future with broken builtin async environment scripts" == 0);
}
/** main loop **/
while(IsRunning()) {
//wait for job
LuaJobInfo toprocess = m_JobDispatcher->getJob();
if (!IsRunning()) { continue; }
//first push error handler
lua_pushcfunction(m_LuaStack, script_error_handler);
int errorhandler = lua_gettop(m_LuaStack);
lua_getglobal(m_LuaStack, "engine");
if(lua_isnil(m_LuaStack, -1))
assert("unable to find engine within async environment" == 0);
lua_getfield(m_LuaStack, -1, "job_processor");
if(lua_isnil(m_LuaStack, -1))
assert("Someone managed to destroy a async worker engine!" == 0);
luaL_checktype(m_LuaStack, -1, LUA_TFUNCTION);
//call it
lua_pushlstring(m_LuaStack,
toprocess.serializedFunction.c_str(),
toprocess.serializedFunction.length());
lua_pushlstring(m_LuaStack,
toprocess.serializedParams.c_str(),
toprocess.serializedParams.length());
if (!IsRunning()) { continue; }
if(lua_pcall(m_LuaStack, 2, 2, errorhandler)) {
scriptError("Async WORKER thread: %s\n", lua_tostring(m_LuaStack, -1));
toprocess.serializedResult="ERROR";
}
else {
//fetch result
const char *retval = lua_tostring(m_LuaStack, -2);
unsigned int lenght = lua_tointeger(m_LuaStack,-1);
toprocess.serializedResult = std::string(retval,lenght);
}
if (!IsRunning()) { continue; }
//put job result
m_JobDispatcher->putJobResult(toprocess);
}
log_deregister_thread();
return 0;
}
/******************************************************************************/
bool AsyncWorkerThread::runScript(std::string script) {
int ret = luaL_loadfile(m_LuaStack, script.c_str()) ||
lua_pcall(m_LuaStack, 0, 0, m_luaerrorhandler);
if(ret){
errorstream<<"==== ERROR FROM LUA WHILE INITIALIZING ASYNC ENVIRONMENT ====="<<std::endl;
errorstream<<"Failed to load and run script from "<<std::endl;
errorstream<<script<<":"<<std::endl;
errorstream<<std::endl;
errorstream<<lua_tostring(m_LuaStack, -1)<<std::endl;
errorstream<<std::endl;
errorstream<<"=================== END OF ERROR FROM LUA ===================="<<std::endl;
lua_pop(m_LuaStack, 1); // Pop error message from stack
lua_pop(m_LuaStack, 1); // Pop the error handler from stack
return false;
}
return true;
}
/******************************************************************************/
void* AsyncWorkerThread::worker_thread_wrapper(void* thread) {
return ((AsyncWorkerThread*) thread)->worker_thread_main();
}

228
src/script/lua_api/l_async_events.h Normal file
View File

@ -0,0 +1,228 @@
/*
Minetest
Copyright (C) 2013 sapier, <sapier AT gmx DOT net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef C_ASYNC_EVENTS_H_
#define C_ASYNC_EVENTS_H_
#include <vector>
#include <map>
#include <unistd.h>
/******************************************************************************/
/* Includes */
/******************************************************************************/
#include "jthread/jthread.h"
#include "jthread/jmutex.h"
#include "jthread/jsemaphore.h"
#include "debug.h"
#include "lua.h"
/******************************************************************************/
/* Typedefs and macros */
/******************************************************************************/
#define MAINMENU_NUMBER_OF_ASYNC_THREADS 4
/******************************************************************************/
/* forward declarations */
/******************************************************************************/
class AsyncEngine;
/******************************************************************************/
/* declarations */
/******************************************************************************/
/** a struct to encapsulate data required to queue a job **/
struct LuaJobInfo {
/** function to be called in async environment **/
std::string serializedFunction;
/** parameter table to be passed to function **/
std::string serializedParams;
/** result of function call **/
std::string serializedResult;
/** jobid used to identify a job and match it to callback **/
unsigned int JobId;
};
/** class encapsulating a asynchronous working environment **/
class AsyncWorkerThread : public JThread {
public:
/**
* default constructor
* @param pointer to job dispatcher
*/
AsyncWorkerThread(AsyncEngine* jobdispatcher, unsigned int threadnumber);
/**
* default destructor
*/
virtual ~AsyncWorkerThread();
/**
* thread function
*/
void* Thread() {
ThreadStarted();
return worker_thread_wrapper(this);
}
/**
* wait for thread to stop
*/
void Wait() {
while(IsRunning()) {
sleep(1);
}
}
private:
/**
* helper function to run a lua script
* @param path of script
*/
bool runScript(std::string script);
/**
* main function of thread
*/
void* worker_thread_main();
/**
* static wrapper for thread creation
* @param this pointer to the thread to be created
*/
static void* worker_thread_wrapper(void* thread);
/**
* pointer to job dispatcher
*/
AsyncEngine* m_JobDispatcher;
/**
* the lua stack to run at
*/
lua_State* m_LuaStack;
/**
* lua internal stack number of error handler
*/
int m_luaerrorhandler;
/**
* thread number used for debug output
*/
unsigned int m_threadnum;
};
/** asynchornous thread and job management **/
class AsyncEngine {
friend AsyncWorkerThread;
public:
/**
* default constructor
*/
AsyncEngine();
/**
* default destructor
*/
~AsyncEngine();
/**
* register function to be used within engines
* @param name function name to be used within lua environment
* @param fct c-function to be called
*/
bool registerFunction(const char* name, lua_CFunction fct);
/**
* create async engine tasks and lock function registration
* @param numengines number of async threads to be started
*/
void Initialize(unsigned int numengines);
/**
* queue/run a async job
* @param fct serialized lua function
* @param params serialized parameters
* @return jobid the job is queued
*/
unsigned int doAsyncJob(std::string fct, std::string params);
/**
* engine step to process finished jobs
* the engine step is one way to pass events back, PushFinishedJobs another
* @param L the lua environment to do the step in
*/
void Step(lua_State *L);
void PushFinishedJobs(lua_State* L);
protected:
/**
* Get a Job from queue to be processed
* this function blocks until a job is ready
* @return a job to be processed
*/
LuaJobInfo getJob();
/**
* put a Job result back to result queue
* @param result result of completed job
*/
void putJobResult(LuaJobInfo result);
/**
* initialize environment with current registred functions
* this function adds all functions registred by registerFunction to the
* passed lua stack
* @param L lua stack to initialize
* @param top stack position
*/
void PrepareEnvironment(lua_State* L, int top);
private:
/** variable locking the engine against further modification **/
bool m_initDone;
/** internal store for registred functions **/
std::map<std::string,lua_CFunction> m_FunctionList;
/** internal counter to create job id's **/
unsigned int m_JobIdCounter;
/** mutex to protect job queue **/
JMutex m_JobQueueMutex;
/** job queue **/
std::vector<LuaJobInfo> m_JobQueue;
/** mutext to protect result queue **/
JMutex m_ResultQueueMutex;
/** result queue **/
std::vector<LuaJobInfo> m_ResultQueue;
/** list of current worker threads **/
std::vector<AsyncWorkerThread*> m_WorkerThreads;
/** counter semaphore for job dispatching **/
JSemaphore m_JobQueueCounter;
};
#endif /* C_ASYNC_EVENTS_H_ */

6
src/script/lua_api/l_internal.h
View File

@ -30,14 +30,16 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "common/c_internal.h"
#define luamethod(class, name) {#name, class::l_##name}
#define API_FCT(name) registerFunction(L,#name,l_##name,top)
#define API_FCT(name) registerFunction(L, #name, l_##name,top)
#define ASYNC_API_FCT(name) engine.registerFunction(#name, l_##name)
#if (defined(WIN32) || defined(_WIN32_WCE))
#define NO_MAP_LOCK_REQUIRED
#else
#include "main.h"
#include "profiler.h"
#define NO_MAP_LOCK_REQUIRED ScopeProfiler nolocktime(g_profiler,"Scriptapi: unlockable time",SPT_ADD)
#define NO_MAP_LOCK_REQUIRED \
ScopeProfiler nolocktime(g_profiler,"Scriptapi: unlockable time",SPT_ADD)
#endif
#endif /* L_INTERNAL_H_ */

72
src/script/lua_api/l_mainmenu.cpp
View File

@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_mainmenu.h"
#include "lua_api/l_internal.h"
#include "common/c_content.h"
#include "lua_api/l_async_events.h"
#include "guiEngine.h"
#include "guiMainMenu.h"
#include "guiKeyChangeMenu.h"
@ -200,9 +201,6 @@ int ModApiMainMenu::l_get_textlist_index(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_get_worlds(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
std::vector<WorldSpec> worlds = getAvailableWorlds();
lua_newtable(L);
@ -237,9 +235,6 @@ int ModApiMainMenu::l_get_worlds(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_get_games(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
std::vector<SubgameSpec> games = getAvailableGames();
lua_newtable(L);
@ -365,9 +360,6 @@ int ModApiMainMenu::l_get_modstore_details(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_get_modstore_list(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
std::string listtype = "local";
if (!lua_isnone(L,1)) {
@ -421,9 +413,6 @@ int ModApiMainMenu::l_get_modstore_list(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_get_favorites(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
std::string listtype = "local";
if (!lua_isnone(L,1)) {
@ -545,9 +534,6 @@ int ModApiMainMenu::l_get_favorites(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_delete_favorite(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
std::vector<ServerListSpec> servers;
std::string listtype = "local";
@ -599,9 +585,6 @@ int ModApiMainMenu::l_show_keys_menu(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_create_world(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
const char *name = luaL_checkstring(L, 1);
int gameidx = luaL_checkinteger(L,2) -1;
@ -632,9 +615,6 @@ int ModApiMainMenu::l_create_world(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_delete_world(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
int worldidx = luaL_checkinteger(L,1) -1;
std::vector<WorldSpec> worlds = getAvailableWorlds();
@ -962,9 +942,6 @@ int ModApiMainMenu::l_sound_stop(lua_State *L)
/******************************************************************************/
int ModApiMainMenu::l_download_file(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
assert(engine != 0);
const char *url = luaL_checkstring(L, 1);
const char *target = luaL_checkstring(L, 2);
@ -972,7 +949,7 @@ int ModApiMainMenu::l_download_file(lua_State *L)
std::string absolute_destination = fs::RemoveRelativePathComponents(target);
if (ModApiMainMenu::isMinetestPath(absolute_destination)) {
if (engine->downloadFile(url,absolute_destination)) {
if (GUIEngine::downloadFile(url,absolute_destination)) {
lua_pushboolean(L,true);
return 1;
}
@ -990,6 +967,28 @@ int ModApiMainMenu::l_gettext(lua_State *L)
return 1;
}
/******************************************************************************/
int ModApiMainMenu::l_do_async_callback(lua_State *L)
{
GUIEngine* engine = getGuiEngine(L);
const char* serialized_fct_raw = luaL_checkstring(L, 1);
unsigned int lenght_fct = luaL_checkint(L, 2);
const char* serialized_params_raw = luaL_checkstring(L, 3);
unsigned int lenght_params = luaL_checkint(L, 4);
assert(serialized_fct_raw != 0);
assert(serialized_params_raw != 0);
std::string serialized_fct = std::string(serialized_fct_raw,lenght_fct);
std::string serialized_params = std::string(serialized_params_raw,lenght_params);
lua_pushinteger(L,engine->DoAsync(serialized_fct,serialized_params));
return 1;
}
/******************************************************************************/
void ModApiMainMenu::Initialize(lua_State *L, int top)
{
@ -1024,4 +1023,27 @@ void ModApiMainMenu::Initialize(lua_State *L, int top)
API_FCT(sound_play);
API_FCT(sound_stop);
API_FCT(gettext);
API_FCT(do_async_callback);
}
/******************************************************************************/
void ModApiMainMenu::InitializeAsync(AsyncEngine& engine)
{
ASYNC_API_FCT(get_worlds);
ASYNC_API_FCT(get_games);
ASYNC_API_FCT(get_favorites);
ASYNC_API_FCT(get_modpath);
ASYNC_API_FCT(get_gamepath);
ASYNC_API_FCT(get_texturepath);
ASYNC_API_FCT(get_dirlist);
ASYNC_API_FCT(create_dir);
ASYNC_API_FCT(delete_dir);
ASYNC_API_FCT(copy_dir);
//ASYNC_API_FCT(extract_zip); //TODO remove dependency to GuiEngine
ASYNC_API_FCT(get_version);
ASYNC_API_FCT(download_file);
ASYNC_API_FCT(get_modstore_details);
ASYNC_API_FCT(get_modstore_list);
//ASYNC_API_FCT(gettext); (gettext lib isn't threadsafe)
}

6
src/script/lua_api/l_mainmenu.h
View File

@ -22,6 +22,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_base.h"
class AsyncEngine;
/** Implementation of lua api support for mainmenu */
class ModApiMainMenu : public ModApiBase {
@ -125,6 +127,8 @@ private:
static int l_download_file(lua_State *L);
// async
static int l_do_async_callback(lua_State *L);
public:
/**
@ -134,6 +138,8 @@ public:
*/
static void Initialize(lua_State *L, int top);
static void InitializeAsync(AsyncEngine& engine);
};
#endif /* L_MAINMENU_H_ */

16
src/script/lua_api/l_util.cpp
View File

@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_internal.h"
#include "common/c_converter.h"
#include "common/c_content.h"
#include "lua_api/l_async_events.h"
#include "debug.h"
#include "log.h"
#include "tool.h"
@ -257,3 +258,18 @@ void ModApiUtil::Initialize(lua_State *L, int top)
API_FCT(is_yes);
}
void ModApiUtil::InitializeAsync(AsyncEngine& engine)
{
ASYNC_API_FCT(debug);
ASYNC_API_FCT(log);
//ASYNC_API_FCT(setting_set);
ASYNC_API_FCT(setting_get);
//ASYNC_API_FCT(setting_setbool);
ASYNC_API_FCT(setting_getbool);
//ASYNC_API_FCT(setting_save);
ASYNC_API_FCT(parse_json);
ASYNC_API_FCT(is_yes);
}

4
src/script/lua_api/l_util.h
View File

@ -22,6 +22,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "lua_api/l_base.h"
class AsyncEngine;
class ModApiUtil : public ModApiBase {
private:
/*
@ -77,6 +79,8 @@ private:
public:
static void Initialize(lua_State *L, int top);
static void InitializeAsync(AsyncEngine& engine);
};
#endif /* L_UTIL_H_ */

551
src/script/lua_api/marshall.c Normal file
View File

@ -0,0 +1,551 @@
/*
* lmarshal.c
* A Lua library for serializing and deserializing Lua values
* Richard Hundt <richardhundt@gmail.com>
*
* License: MIT
*
* Copyright (c) 2010 Richard Hundt
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"
#define MAR_TREF 1
#define MAR_TVAL 2
#define MAR_TUSR 3
#define MAR_CHR 1
#define MAR_I32 4
#define MAR_I64 8
#define MAR_MAGIC 0x8e
#define SEEN_IDX 3
typedef struct mar_Buffer {
size_t size;
size_t seek;
size_t head;
char* data;
} mar_Buffer;
static int mar_encode_table(lua_State *L, mar_Buffer *buf, size_t *idx);
static int mar_decode_table(lua_State *L, const char* buf, size_t len, size_t *idx);
static void buf_init(lua_State *L, mar_Buffer *buf)
{
buf->size = 128;
buf->seek = 0;
buf->head = 0;
if (!(buf->data = malloc(buf->size))) luaL_error(L, "Out of memory!");
}
static void buf_done(lua_State* L, mar_Buffer *buf)
{
free(buf->data);
}
static int buf_write(lua_State* L, const char* str, size_t len, mar_Buffer *buf)
{
if (len > UINT32_MAX) luaL_error(L, "buffer too long");
if (buf->size - buf->head < len) {
size_t new_size = buf->size << 1;
size_t cur_head = buf->head;
while (new_size - cur_head <= len) {
new_size = new_size << 1;
}
if (!(buf->data = realloc(buf->data, new_size))) {
luaL_error(L, "Out of memory!");
}
buf->size = new_size;
}
memcpy(&buf->data[buf->head], str, len);
buf->head += len;
return 0;
}
static const char* buf_read(lua_State *L, mar_Buffer *buf, size_t *len)
{
if (buf->seek < buf->head) {
buf->seek = buf->head;
*len = buf->seek;
return buf->data;
}
*len = 0;
return NULL;
}
static void mar_encode_value(lua_State *L, mar_Buffer *buf, int val, size_t *idx)
{
size_t l;
int val_type = lua_type(L, val);
lua_pushvalue(L, val);
buf_write(L, (void*)&val_type, MAR_CHR, buf);
switch (val_type) {
case LUA_TBOOLEAN: {
int int_val = lua_toboolean(L, -1);
buf_write(L, (void*)&int_val, MAR_CHR, buf);
break;
}
case LUA_TSTRING: {
const char *str_val = lua_tolstring(L, -1, &l);
buf_write(L, (void*)&l, MAR_I32, buf);
buf_write(L, str_val, l, buf);
break;
}
case LUA_TNUMBER: {
lua_Number num_val = lua_tonumber(L, -1);
buf_write(L, (void*)&num_val, MAR_I64, buf);
break;
}
case LUA_TTABLE: {
int tag, ref;
lua_pushvalue(L, -1);
lua_rawget(L, SEEN_IDX);
if (!lua_isnil(L, -1)) {
ref = lua_tointeger(L, -1);
tag = MAR_TREF;
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&ref, MAR_I32, buf);
lua_pop(L, 1);
}
else {
mar_Buffer rec_buf;
lua_pop(L, 1); /* pop nil */
if (luaL_getmetafield(L, -1, "__persist")) {
tag = MAR_TUSR;
lua_pushvalue(L, -2); /* self */
lua_call(L, 1, 1);
if (!lua_isfunction(L, -1)) {
luaL_error(L, "__persist must return a function");
}
lua_remove(L, -2); /* __persist */
lua_newtable(L);
lua_pushvalue(L, -2); /* callback */
lua_rawseti(L, -2, 1);
buf_init(L, &rec_buf);
mar_encode_table(L, &rec_buf, idx);
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&rec_buf.head, MAR_I32, buf);
buf_write(L, rec_buf.data, rec_buf.head, buf);
buf_done(L, &rec_buf);
lua_pop(L, 1);
}
else {
tag = MAR_TVAL;
lua_pushvalue(L, -1);
lua_pushinteger(L, (*idx)++);
lua_rawset(L, SEEN_IDX);
lua_pushvalue(L, -1);
buf_init(L, &rec_buf);
mar_encode_table(L, &rec_buf, idx);
lua_pop(L, 1);
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&rec_buf.head, MAR_I32, buf);
buf_write(L, rec_buf.data,rec_buf.head, buf);
buf_done(L, &rec_buf);
}
}
break;
}
case LUA_TFUNCTION: {
int tag, ref;
lua_pushvalue(L, -1);
lua_rawget(L, SEEN_IDX);
if (!lua_isnil(L, -1)) {
ref = lua_tointeger(L, -1);
tag = MAR_TREF;
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&ref, MAR_I32, buf);
lua_pop(L, 1);
}
else {
mar_Buffer rec_buf;
int i;
lua_Debug ar;
lua_pop(L, 1); /* pop nil */
lua_pushvalue(L, -1);
lua_getinfo(L, ">nuS", &ar);
if (ar.what[0] != 'L') {
luaL_error(L, "attempt to persist a C function '%s'", ar.name);
}
tag = MAR_TVAL;
lua_pushvalue(L, -1);
lua_pushinteger(L, (*idx)++);
lua_rawset(L, SEEN_IDX);
lua_pushvalue(L, -1);
buf_init(L, &rec_buf);
lua_dump(L, (lua_Writer)buf_write, &rec_buf);
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&rec_buf.head, MAR_I32, buf);
buf_write(L, rec_buf.data, rec_buf.head, buf);
buf_done(L, &rec_buf);
lua_pop(L, 1);
lua_newtable(L);
for (i=1; i <= ar.nups; i++) {
lua_getupvalue(L, -2, i);
lua_rawseti(L, -2, i);
}
buf_init(L, &rec_buf);
mar_encode_table(L, &rec_buf, idx);
buf_write(L, (void*)&rec_buf.head, MAR_I32, buf);
buf_write(L, rec_buf.data, rec_buf.head, buf);
buf_done(L, &rec_buf);
lua_pop(L, 1);
}
break;
}
case LUA_TUSERDATA: {
int tag, ref;
lua_pushvalue(L, -1);
lua_rawget(L, SEEN_IDX);
if (!lua_isnil(L, -1)) {
ref = lua_tointeger(L, -1);
tag = MAR_TREF;
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&ref, MAR_I32, buf);
lua_pop(L, 1);
}
else {
mar_Buffer rec_buf;
lua_pop(L, 1); /* pop nil */
if (luaL_getmetafield(L, -1, "__persist")) {
tag = MAR_TUSR;
lua_pushvalue(L, -2);
lua_pushinteger(L, (*idx)++);
lua_rawset(L, SEEN_IDX);
lua_pushvalue(L, -2);
lua_call(L, 1, 1);
if (!lua_isfunction(L, -1)) {
luaL_error(L, "__persist must return a function");
}
lua_newtable(L);
lua_pushvalue(L, -2);
lua_rawseti(L, -2, 1);
lua_remove(L, -2);
buf_init(L, &rec_buf);
mar_encode_table(L, &rec_buf, idx);
buf_write(L, (void*)&tag, MAR_CHR, buf);
buf_write(L, (void*)&rec_buf.head, MAR_I32, buf);
buf_write(L, rec_buf.data, rec_buf.head, buf);
buf_done(L, &rec_buf);
}
else {
luaL_error(L, "attempt to encode userdata (no __persist hook)");
}
lua_pop(L, 1);
}
break;
}
case LUA_TNIL: break;
default:
luaL_error(L, "invalid value type (%s)", lua_typename(L, val_type));
}
lua_pop(L, 1);
}
static int mar_encode_table(lua_State *L, mar_Buffer *buf, size_t *idx)
{
lua_pushnil(L);
while (lua_next(L, -2) != 0) {
mar_encode_value(L, buf, -2, idx);
mar_encode_value(L, buf, -1, idx);
lua_pop(L, 1);
}
return 1;
}
#define mar_incr_ptr(l) \
if (((*p)-buf)+(l) > len) luaL_error(L, "bad code"); (*p) += (l);
#define mar_next_len(l,T) \
if (((*p)-buf)+sizeof(T) > len) luaL_error(L, "bad code"); \
l = *(T*)*p; (*p) += sizeof(T);
static void mar_decode_value
(lua_State *L, const char *buf, size_t len, const char **p, size_t *idx)
{
size_t l;
char val_type = **p;
mar_incr_ptr(MAR_CHR);
switch (val_type) {
case LUA_TBOOLEAN:
lua_pushboolean(L, *(char*)*p);
mar_incr_ptr(MAR_CHR);
break;
case LUA_TNUMBER:
lua_pushnumber(L, *(lua_Number*)*p);
mar_incr_ptr(MAR_I64);
break;
case LUA_TSTRING:
mar_next_len(l, uint32_t);
lua_pushlstring(L, *p, l);
mar_incr_ptr(l);
break;
case LUA_TTABLE: {
char tag = *(char*)*p;
mar_incr_ptr(MAR_CHR);
if (tag == MAR_TREF) {
int ref;
mar_next_len(ref, int);
lua_rawgeti(L, SEEN_IDX, ref);
}
else if (tag == MAR_TVAL) {
mar_next_len(l, uint32_t);
lua_newtable(L);
lua_pushvalue(L, -1);
lua_rawseti(L, SEEN_IDX, (*idx)++);
mar_decode_table(L, *p, l, idx);
mar_incr_ptr(l);
}
else if (tag == MAR_TUSR) {
mar_next_len(l, uint32_t);
lua_newtable(L);
mar_decode_table(L, *p, l, idx);
lua_rawgeti(L, -1, 1);
lua_call(L, 0, 1);
lua_remove(L, -2);
lua_pushvalue(L, -1);
lua_rawseti(L, SEEN_IDX, (*idx)++);
mar_incr_ptr(l);
}
else {
luaL_error(L, "bad encoded data");
}
break;
}
case LUA_TFUNCTION: {
size_t nups;
int i;
mar_Buffer dec_buf;
char tag = *(char*)*p;
mar_incr_ptr(1);
if (tag == MAR_TREF) {
int ref;
mar_next_len(ref, int);
lua_rawgeti(L, SEEN_IDX, ref);
}
else {
mar_next_len(l, uint32_t);
dec_buf.data = (char*)*p;
dec_buf.size = l;
dec_buf.head = l;
dec_buf.seek = 0;
lua_load(L, (lua_Reader)buf_read, &dec_buf, "=marshal");
mar_incr_ptr(l);
lua_pushvalue(L, -1);
lua_rawseti(L, SEEN_IDX, (*idx)++);
mar_next_len(l, uint32_t);
lua_newtable(L);
mar_decode_table(L, *p, l, idx);
nups = lua_objlen(L, -1);
for (i=1; i <= nups; i++) {
lua_rawgeti(L, -1, i);
lua_setupvalue(L, -3, i);
}
lua_pop(L, 1);
mar_incr_ptr(l);
}
break;
}
case LUA_TUSERDATA: {
char tag = *(char*)*p;
mar_incr_ptr(MAR_CHR);
if (tag == MAR_TREF) {
int ref;
mar_next_len(ref, int);
lua_rawgeti(L, SEEN_IDX, ref);
}
else if (tag == MAR_TUSR) {
mar_next_len(l, uint32_t);
lua_newtable(L);
mar_decode_table(L, *p, l, idx);
lua_rawgeti(L, -1, 1);
lua_call(L, 0, 1);
lua_remove(L, -2);
lua_pushvalue(L, -1);
lua_rawseti(L, SEEN_IDX, (*idx)++);
mar_incr_ptr(l);
}
else { /* tag == MAR_TVAL */
lua_pushnil(L);
}
break;
}
case LUA_TNIL:
case LUA_TTHREAD:
lua_pushnil(L);
break;
default:
luaL_error(L, "bad code");
}
}
static int mar_decode_table(lua_State *L, const char* buf, size_t len, size_t *idx)
{
const char* p;
p = buf;
while (p - buf < len) {
mar_decode_value(L, buf, len, &p, idx);
mar_decode_value(L, buf, len, &p, idx);
lua_settable(L, -3);
}
return 1;
}
static int mar_encode(lua_State* L)
{
const unsigned char m = MAR_MAGIC;
size_t idx, len;
mar_Buffer buf;
if (lua_isnone(L, 1)) {
lua_pushnil(L);
}
if (lua_isnoneornil(L, 2)) {
lua_newtable(L);
}
else if (!lua_istable(L, 2)) {
luaL_error(L, "bad argument #2 to encode (expected table)");
}
lua_settop(L, 2);
len = lua_objlen(L, 2);
lua_newtable(L);
for (idx = 1; idx <= len; idx++) {
lua_rawgeti(L, 2, idx);
if (lua_isnil(L, -1)) {
lua_pop(L, 1);
continue;
}
lua_pushinteger(L, idx);
lua_rawset(L, SEEN_IDX);
}
lua_pushvalue(L, 1);
buf_init(L, &buf);
buf_write(L, (void*)&m, 1, &buf);
mar_encode_value(L, &buf, -1, &idx);
lua_pop(L, 1);
lua_pushlstring(L, buf.data, buf.head);
buf_done(L, &buf);
lua_remove(L, SEEN_IDX);
return 1;
}
static int mar_decode(lua_State* L)
{
size_t l, idx, len;
const char *p;
const char *s = luaL_checklstring(L, 1, &l);
if (l < 1) luaL_error(L, "bad header");
if (*(unsigned char *)s++ != MAR_MAGIC) luaL_error(L, "bad magic");
l -= 1;
if (lua_isnoneornil(L, 2)) {
lua_newtable(L);
}
else if (!lua_istable(L, 2)) {
luaL_error(L, "bad argument #2 to decode (expected table)");
}
lua_settop(L, 2);
len = lua_objlen(L, 2);
lua_newtable(L);
for (idx = 1; idx <= len; idx++) {
lua_rawgeti(L, 2, idx);
lua_rawseti(L, SEEN_IDX, idx);
}
p = s;
mar_decode_value(L, s, l, &p, &idx);
lua_remove(L, SEEN_IDX);
lua_remove(L, 2);
return 1;
}
static int mar_clone(lua_State* L)
{
mar_encode(L);
lua_replace(L, 1);
mar_decode(L);
return 1;
}
static const luaL_reg R[] =
{
{"encode", mar_encode},
{"decode", mar_decode},
{"clone", mar_clone},
{NULL, NULL}
};
int luaopen_marshal(lua_State *L)
{
lua_newtable(L);
luaL_register(L, "marshal", R);
return 1;
}

24
src/script/scripting_mainmenu.cpp
View File

@ -28,8 +28,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
extern "C" {
#include "lualib.h"
int luaopen_marshal(lua_State *L);
}
/******************************************************************************/
MainMenuScripting::MainMenuScripting(GUIEngine* guiengine)
{
setGuiEngine(guiengine);
@ -37,6 +38,7 @@ MainMenuScripting::MainMenuScripting(GUIEngine* guiengine)
//TODO add security
luaL_openlibs(getStack());
luaopen_marshal(getStack());
SCRIPTAPI_PRECHECKHEADER
@ -58,6 +60,7 @@ MainMenuScripting::MainMenuScripting(GUIEngine* guiengine)
infostream << "SCRIPTAPI: initialized mainmenu modules" << std::endl;
}
/******************************************************************************/
void MainMenuScripting::InitializeModApi(lua_State *L, int top)
{
// Initialize mod api modules
@ -66,4 +69,23 @@ void MainMenuScripting::InitializeModApi(lua_State *L, int top)
// Register reference classes (userdata)
LuaSettings::Register(L);
// Register functions to async environment
ModApiMainMenu::InitializeAsync(m_AsyncEngine);
ModApiUtil::InitializeAsync(m_AsyncEngine);
// Initialize async environment
//TODO possibly make number of async threads configurable
m_AsyncEngine.Initialize(MAINMENU_NUMBER_OF_ASYNC_THREADS);
}
/******************************************************************************/
void MainMenuScripting::Step() {
m_AsyncEngine.Step(getStack());
}
/******************************************************************************/
unsigned int MainMenuScripting::DoAsync(std::string serialized_fct,
std::string serialized_params) {
return m_AsyncEngine.doAsyncJob(serialized_fct,serialized_params);
}

9
src/script/scripting_mainmenu.h
View File

@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "cpp_api/s_base.h"
#include "cpp_api/s_mainmenu.h"
#include "lua_api/l_async_events.h"
/*****************************************************************************/
/* Scripting <-> Main Menu Interface */
@ -37,8 +38,16 @@ public:
// use ScriptApiBase::loadMod() or ScriptApiBase::loadScript()
// to load scripts
/* global step handler to pass back async events */
void Step();
/* pass async events from engine to async threads */
unsigned int DoAsync(std::string serialized_fct,
std::string serialized_params);
private:
void InitializeModApi(lua_State *L, int top);
AsyncEngine m_AsyncEngine;
};