1 /* SimGrid Lua bindings */
3 /* Copyright (c) 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
13 #include "simdag/simdag.h"
16 #include "lua_stub_generator.h"
18 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua,bindings,"Lua Bindings");
20 #define TASK_MODULE_NAME "simgrid.Task"
21 #define HOST_MODULE_NAME "simgrid.Host"
22 // Surf ( bypass XML )
23 #define LINK_MODULE_NAME "simgrid.Link"
24 #define ROUTE_MODULE_NAME "simgrid.Route"
26 /* ********************************************************************************* */
27 /* helper functions */
28 /* ********************************************************************************* */
29 static void stackDump (const char *msg, lua_State *L) {
33 int top = lua_gettop(L);
36 p+=sprintf(p,"STACK(top=%d): ",top);
38 for (i = 1; i <= top; i++) { /* repeat for each level */
39 int t = lua_type(L, i);
42 case LUA_TSTRING: /* strings */
43 p+=sprintf(p,"`%s'", lua_tostring(L, i));
46 case LUA_TBOOLEAN: /* booleans */
47 p+=sprintf(p,lua_toboolean(L, i) ? "true" : "false");
50 case LUA_TNUMBER: /* numbers */
51 p+=sprintf(p,"%g", lua_tonumber(L, i));
55 p+=sprintf(p, "Table");
58 default: /* other values */
60 /* if ((ptr = luaL_checkudata(L,i,TASK_MODULE_NAME))) {
63 p+=printf(p,"%s", lua_typename(L, t));
68 p+=sprintf(p," "); /* put a separator */
70 INFO2("%s%s",msg,buff);
73 /** @brief ensures that a userdata on the stack is a task and returns the pointer inside the userdata */
74 static m_task_t checkTask (lua_State *L,int index) {
76 luaL_checktype(L,index,LUA_TTABLE);
77 lua_getfield(L,index,"__simgrid_task");
78 pi = (m_task_t*)luaL_checkudata(L,-1,TASK_MODULE_NAME);
80 luaL_typerror(L,index,TASK_MODULE_NAME);
83 luaL_error(L,"null Task");
87 /* ********************************************************************************* */
88 /* wrapper functions */
89 /* ********************************************************************************* */
92 * A task is either something to compute somewhere, or something to exchange between two hosts (or both).
93 * It is defined by a computing amount and a message size.
101 * Construct an new task with the specified processing amount and amount
104 * @param name Task's name
106 * @param computeDuration A value of the processing amount (in flop) needed to process the task.
107 * If 0, then it cannot be executed with the execute() method.
108 * This value has to be >= 0.
110 * @param messageSize A value of amount of data (in bytes) needed to transfert this task.
111 * If 0, then it cannot be transfered with the get() and put() methods.
112 * This value has to be >= 0.
114 static int Task_new(lua_State* L) {
115 const char *name=luaL_checkstring(L,1);
116 int comp_size = luaL_checkint(L,2);
117 int msg_size = luaL_checkint(L,3);
118 m_task_t msg_task = MSG_task_create(name,comp_size,msg_size,NULL);
119 lua_newtable (L); /* create a table, put the userdata on top of it */
120 m_task_t *lua_task = (m_task_t*)lua_newuserdata(L,sizeof(m_task_t));
121 *lua_task = msg_task;
122 luaL_getmetatable(L,TASK_MODULE_NAME);
123 lua_setmetatable(L,-2);
124 lua_setfield (L, -2, "__simgrid_task"); /* put the userdata as field of the table */
125 /* remove the args from the stack */
132 static int Task_get_name(lua_State *L) {
133 m_task_t tk = checkTask(L,-1);
134 lua_pushstring(L,MSG_task_get_name(tk));
138 static int Task_computation_duration(lua_State *L){
139 m_task_t tk = checkTask(L,-1);
140 lua_pushnumber(L,MSG_task_get_compute_duration (tk));
144 static int Task_execute(lua_State *L){
145 m_task_t tk = checkTask(L,-1);
146 int res = MSG_task_execute(tk);
147 lua_pushnumber(L,res);
151 static int Task_destroy(lua_State *L) {
152 m_task_t tk = checkTask(L,-1);
153 int res = MSG_task_destroy(tk);
154 lua_pushnumber(L,res);
158 static int Task_send(lua_State *L) {
159 //stackDump("send ",L);
160 m_task_t tk = checkTask(L,-2);
161 const char *mailbox = luaL_checkstring(L,-1);
162 lua_pop(L,1); // remove the string so that the task is on top of it
163 MSG_task_set_data(tk,L); // Copy my stack into the task, so that the receiver can copy the lua task directly
164 MSG_error_t res = MSG_task_send(tk,mailbox);
165 while (MSG_task_get_data(tk)!=NULL) // Don't mess up with my stack: the receiver didn't copy the data yet
166 MSG_process_sleep(0); // yield
168 if (res != MSG_OK) switch(res) {
170 ERROR0("MSG_task_send failed : Timeout");
172 case MSG_TRANSFER_FAILURE :
173 ERROR0("MSG_task_send failed : Transfer Failure");
175 case MSG_HOST_FAILURE :
176 ERROR0("MSG_task_send failed : Host Failure ");
179 ERROR0("MSG_task_send failed : Unexpected error , please report this bug");
185 static int Task_recv(lua_State *L) {
187 const char *mailbox = luaL_checkstring(L,-1);
188 MSG_error_t res = MSG_task_receive(&tk,mailbox);
190 lua_State *sender_stack = MSG_task_get_data(tk);
191 lua_xmove(sender_stack,L,1); // copy the data directly from sender's stack
192 MSG_task_set_data(tk,NULL);
194 if(res != MSG_OK) switch(res){
196 ERROR0("MSG_task_receive failed : Timeout");
198 case MSG_TRANSFER_FAILURE :
199 ERROR0("MSG_task_receive failed : Transfer Failure");
201 case MSG_HOST_FAILURE :
202 ERROR0("MSG_task_receive failed : Host Failure ");
205 ERROR0("MSG_task_receive failed : Unexpected error , please report this bug");
212 static const luaL_reg Task_methods[] = {
214 {"name", Task_get_name},
215 {"computation_duration", Task_computation_duration},
216 {"execute", Task_execute},
217 {"destroy", Task_destroy},
222 static int Task_gc(lua_State *L) {
223 m_task_t tk=checkTask(L,-1);
224 if (tk) MSG_task_destroy(tk);
228 static int Task_tostring(lua_State *L) {
229 lua_pushfstring(L, "Task :%p",lua_touserdata(L,1));
233 static const luaL_reg Task_meta[] = {
235 {"__tostring", Task_tostring},
242 static m_host_t checkHost (lua_State *L,int index) {
244 luaL_checktype(L,index,LUA_TTABLE);
245 lua_getfield(L,index,"__simgrid_host");
246 pi = (m_host_t*)luaL_checkudata(L,-1,HOST_MODULE_NAME);
248 luaL_typerror(L,index,HOST_MODULE_NAME);
251 luaL_error(L,"null Host");
256 static int Host_get_by_name(lua_State *L)
258 const char *name=luaL_checkstring(L,1);
259 DEBUG0("Getting Host from name...");
260 m_host_t msg_host = MSG_get_host_by_name(name);
263 luaL_error(L,"null Host : MSG_get_host_by_name failled");
265 lua_newtable (L); /* create a table, put the userdata on top of it */
266 m_host_t *lua_host = (m_host_t*)lua_newuserdata(L,sizeof(m_host_t));
267 *lua_host = msg_host;
268 luaL_getmetatable(L,HOST_MODULE_NAME);
269 lua_setmetatable(L,-2);
270 lua_setfield (L, -2, "__simgrid_host"); /* put the userdata as field of the table */
271 /* remove the args from the stack */
277 static int Host_get_name(lua_State *L) {
278 m_host_t ht = checkHost(L,-1);
279 lua_pushstring(L,MSG_host_get_name(ht));
283 static int Host_number(lua_State *L) {
284 lua_pushnumber(L,MSG_get_host_number());
288 static int Host_at(lua_State *L)
290 int index = luaL_checkinteger(L,1);
291 m_host_t host = MSG_get_host_table()[index-1]; // lua indexing start by 1 (lua[1] <=> C[0])
292 lua_newtable (L); /* create a table, put the userdata on top of it */
293 m_host_t *lua_host = (m_host_t*)lua_newuserdata(L,sizeof(m_host_t));
295 luaL_getmetatable(L,HOST_MODULE_NAME);
296 lua_setmetatable(L,-2);
297 lua_setfield (L, -2, "__simgrid_host"); /* put the userdata as field of the table */
302 /*****************************************************************************************
303 * BYPASS XML SURF Methods *
304 ***************************
305 ***************************
306 ******************************************************************************************/
307 #include "surf/surfxml_parse.h" /* to override surf_parse and bypass the parser */
308 #include "surf/surf_private.h"
309 typedef struct t_host_attr
312 // Mandatory attributes
315 // Optional attributes
317 const char *power_trace;
319 const char *state_trace;
320 //deployment attribute
321 const char* function;
322 xbt_dynar_t args_list;
323 }host_attr,*p_host_attr;
325 typedef struct t_link_attr
330 }link_attr,*p_link_attr;
332 typedef struct t_route_attr
336 xbt_dynar_t links_id;
338 }route_attr,*p_route_attr;
340 //using xbt_dynar_t :
341 static xbt_dynar_t host_list_d ;
342 static xbt_dynar_t link_list_d ;
343 static xbt_dynar_t route_list_d ;
347 * create host resource via CPU model [for MSG]
350 static void create_host(const char* id,double power_peak,double power_sc,
351 const char* power_tr,int state_init,
352 const char* state_tr)
355 double power_scale = 1.0;
356 tmgr_trace_t power_trace = NULL;
357 e_surf_resource_state_t state_initial;
358 tmgr_trace_t state_trace;
360 power_scale = power_sc;
361 if (state_init == -1)
362 state_initial = SURF_RESOURCE_OFF;
364 state_initial = SURF_RESOURCE_ON;
366 power_trace = tmgr_trace_new(power_tr);
368 power_trace = tmgr_trace_new("");
370 state_trace = tmgr_trace_new(state_tr);
372 state_trace = tmgr_trace_new("");
373 current_property_set = xbt_dict_new();
374 surf_host_create_resource(xbt_strdup(id), power_peak, power_scale,
375 power_trace, state_initial, state_trace, current_property_set);
380 *create host resource via workstation_ptask_L07 model [for SimDag]
382 static void create_host_wsL07(const char* id,double power_peak,double power_sc,
383 const char* power_tr,int state_init,
384 const char* state_tr)
386 double power_scale = 1.0;
387 tmgr_trace_t power_trace = NULL;
388 e_surf_resource_state_t state_initial;
389 tmgr_trace_t state_trace;
391 power_scale = power_sc;
392 if (state_init == -1)
393 state_initial = SURF_RESOURCE_OFF;
395 state_initial = SURF_RESOURCE_ON;
397 power_trace = tmgr_trace_new(power_tr);
399 power_trace = tmgr_trace_new("");
401 state_trace = tmgr_trace_new(state_tr);
403 state_trace = tmgr_trace_new("");
404 current_property_set = xbt_dict_new();
405 surf_wsL07_host_create_resource(xbt_strdup(id), power_peak, power_scale,
406 power_trace, state_initial, state_trace, current_property_set);
410 * add new host to platform hosts list
412 static int Host_new(lua_State *L)
415 if(xbt_dynar_is_empty(host_list_d))
416 host_list_d = xbt_dynar_new(sizeof(p_host_attr), &xbt_free_ref);
420 const char *power_trace;
421 const char *state_trace;
422 double power,power_scale;
424 //get values from the table passed as argument
425 if (lua_istable(L,-1)) {
428 lua_pushstring(L,"id");
429 lua_gettable(L, -2 );
430 id = lua_tostring(L,-1);
434 lua_pushstring(L,"power");
435 lua_gettable(L, -2 );
436 power = lua_tonumber(L,-1);
440 lua_pushstring(L,"power_scale");
441 lua_gettable(L, -2 );
442 power_scale = lua_tonumber(L,-1);
446 lua_pushstring(L,"power_trace");
447 lua_gettable(L, -2 );
448 power_trace = lua_tostring(L,-1);
452 lua_pushstring(L,"state_initial");
453 lua_gettable(L, -2 );
454 state_initial = lua_tonumber(L,-1);
458 lua_pushstring(L,"state_trace");
459 lua_gettable(L, -2 );
460 state_trace = lua_tostring(L,-1);
464 ERROR0("Bad Arguments to create host, Should be a table with named arguments");
468 host = malloc(sizeof(host_attr));
470 host->power_peak = power;
471 host->power_scale = power_scale;
472 host->power_trace = power_trace;
473 host->state_initial = state_initial;
474 host->state_trace = state_trace;
475 host->function = NULL;
476 xbt_dynar_push(host_list_d, &host);
482 * add link to platform links list
484 static int Link_new(lua_State *L) // (id,bandwidth,latency)
486 if(xbt_dynar_is_empty(link_list_d))
487 link_list_d = xbt_dynar_new(sizeof(p_link_attr), &xbt_free_ref);
490 double bandwidth,latency;
491 //get values from the table passed as argument
492 if (lua_istable(L,-1)) {
494 lua_pushstring(L,"id");
495 lua_gettable(L, -2 );
496 id = lua_tostring(L,-1);
499 // get bandwidth value
500 lua_pushstring(L,"bandwidth");
501 lua_gettable(L, -2 );
502 bandwidth = lua_tonumber(L,-1);
506 lua_pushstring(L,"latency");
507 lua_gettable(L, -2 );
508 latency = lua_tonumber(L,-1);
512 ERROR0("Bad Arguments to create link, Should be a table with named arguments");
516 p_link_attr link = malloc(sizeof(link_attr));
518 link->bandwidth = bandwidth;
519 link->latency = latency;
520 xbt_dynar_push(link_list_d,&link);
525 * add route to platform routes list
527 static int Route_new(lua_State *L) // (src_id,dest_id,links_number,link_table)
529 if(xbt_dynar_is_empty(route_list_d))
530 route_list_d = xbt_dynar_new(sizeof(p_route_attr), &xbt_free_ref);
531 const char * link_id;
532 p_route_attr route = malloc(sizeof(route_attr));
533 route->src_id = luaL_checkstring(L,1);
534 route->dest_id = luaL_checkstring(L,2);
535 route->links_id = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
537 while (lua_next(L,3) != 0) {
538 link_id = lua_tostring(L, -1);
539 xbt_dynar_push(route->links_id, &link_id);
540 DEBUG2("index = %f , Link_id = %s \n",lua_tonumber(L, -2),lua_tostring(L, -1));
545 //add route to platform's route list
546 xbt_dynar_push(route_list_d,&route);
551 * set function to process
553 static int Host_set_function(lua_State *L) //(host,function,nb_args,list_args)
555 // look for the index of host in host_list
556 const char *host_id = luaL_checkstring(L,1);
557 const char* argument;
561 xbt_dynar_foreach(host_list_d,i,p_host)
563 if(p_host->id == host_id)
565 p_host->function = luaL_checkstring(L,2);
568 p_host->args_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
569 // fill the args list
572 while (lua_next(L,3) != 0) {
573 argument = lua_tostring(L, -1);
574 xbt_dynar_push(p_host->args_list, &argument);
575 DEBUG2("index = %f , Arg_id = %s \n",lua_tonumber(L, -2),lua_tostring(L, -1));
584 ERROR1("Host : %s Not Fount !!",host_id);
589 * surf parse bypass platform
590 * through CPU/network Models
593 static int surf_parse_bypass_platform()
598 p_route_attr p_route;
601 xbt_dynar_foreach(host_list_d,i,p_host)
603 create_host(p_host->id,p_host->power_peak,p_host->power_scale,p_host->power_trace,
604 p_host->state_initial,p_host->state_trace);
605 //add to routing model host list
606 surf_route_add_host((char*)p_host->id);
610 xbt_dynar_foreach(link_list_d,i,p_link)
612 surf_link_create_resource((char*)p_link->id,p_link->bandwidth,p_link->latency);
615 xbt_dynar_foreach(route_list_d,i,p_route)
617 surf_route_set_resource((char*)p_route->src_id,(char*)p_route->dest_id,p_route->links_id,0);
621 surf_add_host_traces();
623 surf_add_link_traces();
625 return 0; // must return 0 ?!!
631 * surf parse bypass platform
632 * through workstation_ptask_L07 Model
636 static int surf_wsL07_parse_bypass_platform()
641 p_route_attr p_route;
644 xbt_dynar_foreach(host_list_d,i,p_host)
646 create_host_wsL07(p_host->id,p_host->power_peak,p_host->power_scale,p_host->power_trace,
647 p_host->state_initial,p_host->state_trace);
648 //add to routing model host list
649 surf_route_add_host((char*)p_host->id);
653 xbt_dynar_foreach(link_list_d,i,p_link)
655 surf_wsL07_link_create_resource((char*)p_link->id,p_link->bandwidth,p_link->latency);
658 xbt_dynar_foreach(route_list_d,i,p_route)
660 surf_route_set_resource((char*)p_route->src_id,(char*)p_route->dest_id,p_route->links_id,0);
664 surf_wsL07_add_traces();
671 * surf parse bypass application for MSG Module
673 static int surf_parse_bypass_application()
677 xbt_dynar_foreach(host_list_d,i,p_host)
680 MSG_set_function(p_host->id,p_host->function,p_host->args_list);
687 * Generate Gras Templates File from lua
690 xbt_dict_t process_function_set;
691 xbt_dynar_t process_list;
692 xbt_dict_t machine_set;
693 static s_process_t process;
695 void s_process_free(void *process)
697 s_process_t *p = (s_process_t *) process;
699 for (i = 0; i < p->argc; i++)
705 static int gras_add_process_function(lua_State *L)
708 const char* process_host = luaL_checkstring(L,1);
709 const char *process_function = luaL_checkstring(L,2);
711 if(xbt_dict_is_empty(machine_set) || xbt_dict_is_empty(process_function_set)
712 || xbt_dynar_is_empty(process_list))
714 process_function_set = xbt_dict_new();
715 process_list = xbt_dynar_new(sizeof(s_process_t), s_process_free);
716 machine_set = xbt_dict_new();
719 xbt_dict_set(machine_set,process_host, NULL, NULL);
720 xbt_dict_set(process_function_set,process_function, NULL, NULL);
723 process.argv = xbt_new(char *, 1);
724 process.argv[0] = xbt_strdup(process_function);
725 process.host = strdup(process_host);
728 while (lua_next(L,3) != 0) {
729 arg = lua_tostring(L, -1);
731 process.argv = xbt_realloc(process.argv, (process.argc) * sizeof(char *));
732 process.argv[(process.argc) - 1] = xbt_strdup(arg);
734 DEBUG2("index = %f , arg = %s \n",lua_tonumber(L, -2),lua_tostring(L, -1));
738 //add to the process list
739 xbt_dynar_push(process_list, &process);
746 static int gras_generate(lua_State *L)
748 const char *project_name = luaL_checkstring(L,1);
749 generate_sim(project_name);
750 generate_rl(project_name);
751 generate_makefile_local(project_name);
756 //***********Register Methods *******************************************//
760 static const luaL_reg Host_methods[] = {
761 {"getByName", Host_get_by_name},
762 {"name", Host_get_name},
763 {"number", Host_number},
765 // Bypass XML Methods
767 {"setFunction", Host_set_function},
771 static int Host_gc(lua_State *L)
773 m_host_t ht = checkHost(L,-1);
778 static int Host_tostring(lua_State *L)
780 lua_pushfstring(L,"Host :%p",lua_touserdata(L,1));
784 static const luaL_reg Host_meta[] = {
786 {"__tostring", Host_tostring},
793 static const luaL_reg Link_methods[] = {
800 static const luaL_reg Route_methods[] ={
806 * Environment related
809 extern lua_State *simgrid_lua_state;
811 static int run_lua_code(int argc,char **argv) {
812 DEBUG1("Run lua code %s",argv[0]);
813 lua_State *L = lua_newthread(simgrid_lua_state);
814 int ref = luaL_ref(simgrid_lua_state, LUA_REGISTRYINDEX); // protect the thread from being garbage collected
817 /* Start the co-routine */
818 lua_getglobal(L,argv[0]);
819 xbt_assert1(lua_isfunction(L,-1),
820 "The lua function %s does not seem to exist",argv[0]);
822 // push arguments onto the stack
825 lua_pushstring(L,argv[i]);
827 // Call the function (in resume)
828 xbt_assert2(lua_pcall(L, argc-1, 1, 0) == 0,
829 "error running function `%s': %s",argv[0], lua_tostring(L, -1));
831 /* retrieve result */
832 if (lua_isnumber(L, -1)) {
833 res = lua_tonumber(L, -1);
834 lua_pop(L, 1); /* pop returned value */
837 luaL_unref(simgrid_lua_state,LUA_REGISTRYINDEX,ref );
838 DEBUG1("Execution of lua code %s is over", (argv ? argv[0] : "(null)"));
841 static int launch_application(lua_State *L) {
842 const char * file = luaL_checkstring(L,1);
843 MSG_function_register_default(run_lua_code);
844 MSG_launch_application(file);
847 #include "simix/simix.h" //FIXME: KILLME when debugging on simix internals become useless
848 static int create_environment(lua_State *L) {
849 const char *file = luaL_checkstring(L,1);
850 DEBUG1("Loading environment file %s",file);
851 MSG_create_environment(file);
852 smx_host_t *hosts = SIMIX_host_get_table();
854 for (i=0;i<SIMIX_host_get_number();i++) {
855 DEBUG1("We have an host %s", SIMIX_host_get_name(hosts[i]));
861 static int debug(lua_State *L) {
862 const char *str = luaL_checkstring(L,1);
866 static int info(lua_State *L) {
867 const char *str = luaL_checkstring(L,1);
871 static int run(lua_State *L) {
875 static int clean(lua_State *L) {
885 * Register platform for MSG
887 static int msg_register_platform(lua_State *L)
889 /* Tell Simgrid we dont wanna use its parser*/
890 surf_parse = surf_parse_bypass_platform;
891 MSG_create_environment(NULL);
896 * Register platform for Simdag
899 static int sd_register_platform(lua_State *L)
901 surf_parse = surf_wsL07_parse_bypass_platform;
902 SD_create_environment(NULL);
906 * Register platform for gras
908 static int gras_register_platform(lua_State *L)
910 /* Tell Simgrid we dont wanna use surf parser*/
911 surf_parse = surf_parse_bypass_platform;
912 gras_create_environment(NULL);
917 * Register applicaiton for MSG
919 static int msg_register_application(lua_State *L)
921 MSG_function_register_default(run_lua_code);
922 surf_parse = surf_parse_bypass_application;
923 MSG_launch_application(NULL);
928 * Register application for gras
930 static int gras_register_application(lua_State *L)
932 gras_function_register_default(run_lua_code);
933 surf_parse = surf_parse_bypass_application;
934 gras_launch_application(NULL);
937 static const luaL_Reg simgrid_funcs[] = {
938 { "create_environment", create_environment},
939 { "launch_application", launch_application},
945 { "platform", create_environment},
946 { "application", launch_application},
947 /* methods to bypass XML parser*/
948 { "msg_register_platform",msg_register_platform},
949 { "sd_register_platform",sd_register_platform},
950 { "msg_register_application",msg_register_application},
951 { "gras_register_platform",gras_register_platform},
952 { "gras_register_application",gras_register_application},
953 /* gras sub generator method*/
954 {"gras_set_process_function",gras_add_process_function},
955 {"gras_generate",gras_generate},
959 /* ********************************************************************************* */
960 /* module management functions */
961 /* ********************************************************************************* */
963 extern const char*xbt_ctx_factory_to_use; /*Hack: let msg load directly the right factory */
965 #define LUA_MAX_ARGS_COUNT 10 /* maximum amount of arguments we can get from lua on command line */
967 int luaopen_simgrid(lua_State* L); // Fuck gcc: we don't need that prototype
968 int luaopen_simgrid(lua_State* L) {
970 //xbt_ctx_factory_to_use = "lua";
971 char **argv=malloc(sizeof(char*)*LUA_MAX_ARGS_COUNT);
973 argv[0] = (char*)"/usr/bin/lua"; /* Lie on the argv[0] so that the stack dumping facilities find the right binary. FIXME: what if lua is not in that location? */
974 /* Get the command line arguments from the lua interpreter */
975 lua_getglobal(L,"arg");
976 /* if arg is a null value, it means we use lua only as a script to init platform
977 * else it should be a table and then take arg in consideration
979 if(lua_istable(L,-1))
984 lua_pushinteger(L,argc-2);
986 if (lua_isnil(L,-1)) {
989 xbt_assert1(lua_isstring(L,-1),"argv[%d] got from lua is no string",argc-1);
990 xbt_assert2(argc<LUA_MAX_ARGS_COUNT,
991 "Too many arguments, please increase LUA_MAX_ARGS_COUNT in %s before recompiling SimGrid if you insist on having more than %d args on command line",
992 __FILE__,LUA_MAX_ARGS_COUNT-1);
993 argv[argc-1] = (char*)luaL_checkstring(L,-1);
995 DEBUG1("Got command line argument %s from lua",argv[argc-1]);
1000 /* Initialize the MSG core */
1001 MSG_global_init(&argc,argv);
1002 DEBUG1("Still %d arguments on command line",argc); // FIXME: update the lua's arg table to reflect the changes from SimGrid
1004 /* register the core C functions to lua */
1005 luaL_register(L, "simgrid", simgrid_funcs);
1006 /* register the task methods to lua */
1007 luaL_openlib(L,TASK_MODULE_NAME,Task_methods,0); //create methods table,add it to the globals
1008 luaL_newmetatable(L,TASK_MODULE_NAME); //create metatable for Task,add it to the Lua registry
1009 luaL_openlib(L,0,Task_meta,0);// fill metatable
1010 lua_pushliteral(L,"__index");
1011 lua_pushvalue(L,-3); //dup methods table
1012 lua_rawset(L,-3); //matatable.__index = methods
1013 lua_pushliteral(L,"__metatable");
1014 lua_pushvalue(L,-3); //dup methods table
1015 lua_rawset(L,-3); //hide metatable:metatable.__metatable = methods
1016 lua_pop(L,1); //drop metatable
1018 /* register the hosts methods to lua*/
1019 luaL_openlib(L,HOST_MODULE_NAME,Host_methods,0);
1020 luaL_newmetatable(L,HOST_MODULE_NAME);
1021 luaL_openlib(L,0,Host_meta,0);
1022 lua_pushliteral(L,"__index");
1023 lua_pushvalue(L,-3);
1025 lua_pushliteral(L,"__metatable");
1026 lua_pushvalue(L,-3);
1030 /* register the links methods to lua*/
1031 luaL_openlib(L,LINK_MODULE_NAME,Link_methods,0);
1032 luaL_newmetatable(L,LINK_MODULE_NAME);
1035 /*register the routes methods to lua*/
1036 luaL_openlib(L,ROUTE_MODULE_NAME,Route_methods,0);
1037 luaL_newmetatable(L,LINK_MODULE_NAME);
1040 /* Keep the context mechanism informed of our lua world today */
1041 simgrid_lua_state = L;