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"
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua,bindings,"Lua Bindings");
19 #define TASK_MODULE_NAME "simgrid.Task"
20 #define HOST_MODULE_NAME "simgrid.Host"
21 // Surf ( bypass XML )
22 #define LINK_MODULE_NAME "simgrid.Link"
23 #define ROUTE_MODULE_NAME "simgrid.Route"
25 /* ********************************************************************************* */
26 /* helper functions */
27 /* ********************************************************************************* */
28 static void stackDump (const char *msg, lua_State *L) {
32 int top = lua_gettop(L);
35 p+=sprintf(p,"STACK(top=%d): ",top);
37 for (i = 1; i <= top; i++) { /* repeat for each level */
38 int t = lua_type(L, i);
41 case LUA_TSTRING: /* strings */
42 p+=sprintf(p,"`%s'", lua_tostring(L, i));
45 case LUA_TBOOLEAN: /* booleans */
46 p+=sprintf(p,lua_toboolean(L, i) ? "true" : "false");
49 case LUA_TNUMBER: /* numbers */
50 p+=sprintf(p,"%g", lua_tonumber(L, i));
54 p+=sprintf(p, "Table");
57 default: /* other values */
59 /* if ((ptr = luaL_checkudata(L,i,TASK_MODULE_NAME))) {
62 p+=printf(p,"%s", lua_typename(L, t));
67 p+=sprintf(p," "); /* put a separator */
69 INFO2("%s%s",msg,buff);
72 /** @brief ensures that a userdata on the stack is a task and returns the pointer inside the userdata */
73 static m_task_t checkTask (lua_State *L,int index) {
75 luaL_checktype(L,index,LUA_TTABLE);
76 lua_getfield(L,index,"__simgrid_task");
77 pi = (m_task_t*)luaL_checkudata(L,-1,TASK_MODULE_NAME);
79 luaL_typerror(L,index,TASK_MODULE_NAME);
82 luaL_error(L,"null Task");
86 /* ********************************************************************************* */
87 /* wrapper functions */
88 /* ********************************************************************************* */
91 * A task is either something to compute somewhere, or something to exchange between two hosts (or both).
92 * It is defined by a computing amount and a message size.
100 * Construct an new task with the specified processing amount and amount
103 * @param name Task's name
105 * @param computeDuration A value of the processing amount (in flop) needed to process the task.
106 * If 0, then it cannot be executed with the execute() method.
107 * This value has to be >= 0.
109 * @param messageSize A value of amount of data (in bytes) needed to transfert this task.
110 * If 0, then it cannot be transfered with the get() and put() methods.
111 * This value has to be >= 0.
113 static int Task_new(lua_State* L) {
114 const char *name=luaL_checkstring(L,1);
115 int comp_size = luaL_checkint(L,2);
116 int msg_size = luaL_checkint(L,3);
117 m_task_t msg_task = MSG_task_create(name,comp_size,msg_size,NULL);
118 lua_newtable (L); /* create a table, put the userdata on top of it */
119 m_task_t *lua_task = (m_task_t*)lua_newuserdata(L,sizeof(m_task_t));
120 *lua_task = msg_task;
121 luaL_getmetatable(L,TASK_MODULE_NAME);
122 lua_setmetatable(L,-2);
123 lua_setfield (L, -2, "__simgrid_task"); /* put the userdata as field of the table */
124 /* remove the args from the stack */
131 static int Task_get_name(lua_State *L) {
132 m_task_t tk = checkTask(L,-1);
133 lua_pushstring(L,MSG_task_get_name(tk));
137 static int Task_computation_duration(lua_State *L){
138 m_task_t tk = checkTask(L,-1);
139 lua_pushnumber(L,MSG_task_get_compute_duration (tk));
143 static int Task_execute(lua_State *L){
144 m_task_t tk = checkTask(L,-1);
145 int res = MSG_task_execute(tk);
146 lua_pushnumber(L,res);
150 static int Task_destroy(lua_State *L) {
151 m_task_t tk = checkTask(L,-1);
152 int res = MSG_task_destroy(tk);
153 lua_pushnumber(L,res);
157 static int Task_send(lua_State *L) {
158 //stackDump("send ",L);
159 m_task_t tk = checkTask(L,-2);
160 const char *mailbox = luaL_checkstring(L,-1);
161 lua_pop(L,1); // remove the string so that the task is on top of it
162 MSG_task_set_data(tk,L); // Copy my stack into the task, so that the receiver can copy the lua task directly
163 MSG_error_t res = MSG_task_send(tk,mailbox);
164 while (MSG_task_get_data(tk)!=NULL) // Don't mess up with my stack: the receiver didn't copy the data yet
165 MSG_process_sleep(0); // yield
167 if (res != MSG_OK) switch(res) {
169 ERROR0("MSG_task_send failed : Timeout");
171 case MSG_TRANSFER_FAILURE :
172 ERROR0("MSG_task_send failed : Transfer Failure");
174 case MSG_HOST_FAILURE :
175 ERROR0("MSG_task_send failed : Host Failure ");
178 ERROR0("MSG_task_send failed : Unexpected error , please report this bug");
184 static int Task_recv(lua_State *L) {
186 const char *mailbox = luaL_checkstring(L,-1);
187 MSG_error_t res = MSG_task_receive(&tk,mailbox);
189 lua_State *sender_stack = MSG_task_get_data(tk);
190 lua_xmove(sender_stack,L,1); // copy the data directly from sender's stack
191 MSG_task_set_data(tk,NULL);
193 if(res != MSG_OK) switch(res){
195 ERROR0("MSG_task_receive failed : Timeout");
197 case MSG_TRANSFER_FAILURE :
198 ERROR0("MSG_task_receive failed : Transfer Failure");
200 case MSG_HOST_FAILURE :
201 ERROR0("MSG_task_receive failed : Host Failure ");
204 ERROR0("MSG_task_receive failed : Unexpected error , please report this bug");
211 static const luaL_reg Task_methods[] = {
213 {"name", Task_get_name},
214 {"computation_duration", Task_computation_duration},
215 {"execute", Task_execute},
216 {"destroy", Task_destroy},
221 static int Task_gc(lua_State *L) {
222 m_task_t tk=checkTask(L,-1);
223 if (tk) MSG_task_destroy(tk);
227 static int Task_tostring(lua_State *L) {
228 lua_pushfstring(L, "Task :%p",lua_touserdata(L,1));
232 static const luaL_reg Task_meta[] = {
234 {"__tostring", Task_tostring},
241 static m_host_t checkHost (lua_State *L,int index) {
243 luaL_checktype(L,index,LUA_TTABLE);
244 lua_getfield(L,index,"__simgrid_host");
245 pi = (m_host_t*)luaL_checkudata(L,-1,HOST_MODULE_NAME);
247 luaL_typerror(L,index,HOST_MODULE_NAME);
250 luaL_error(L,"null Host");
255 static int Host_get_by_name(lua_State *L)
257 const char *name=luaL_checkstring(L,1);
258 DEBUG0("Getting Host from name...");
259 m_host_t msg_host = MSG_get_host_by_name(name);
262 luaL_error(L,"null Host : MSG_get_host_by_name failled");
264 lua_newtable (L); /* create a table, put the userdata on top of it */
265 m_host_t *lua_host = (m_host_t*)lua_newuserdata(L,sizeof(m_host_t));
266 *lua_host = msg_host;
267 luaL_getmetatable(L,HOST_MODULE_NAME);
268 lua_setmetatable(L,-2);
269 lua_setfield (L, -2, "__simgrid_host"); /* put the userdata as field of the table */
270 /* remove the args from the stack */
276 static int Host_get_name(lua_State *L) {
277 m_host_t ht = checkHost(L,-1);
278 lua_pushstring(L,MSG_host_get_name(ht));
282 static int Host_number(lua_State *L) {
283 lua_pushnumber(L,MSG_get_host_number());
287 static int Host_at(lua_State *L)
289 int index = luaL_checkinteger(L,1);
290 m_host_t host = MSG_get_host_table()[index-1]; // lua indexing start by 1 (lua[1] <=> C[0])
291 lua_newtable (L); /* create a table, put the userdata on top of it */
292 m_host_t *lua_host = (m_host_t*)lua_newuserdata(L,sizeof(m_host_t));
294 luaL_getmetatable(L,HOST_MODULE_NAME);
295 lua_setmetatable(L,-2);
296 lua_setfield (L, -2, "__simgrid_host"); /* put the userdata as field of the table */
301 /*****************************************************************************************
302 * BYPASS XML SURF Methods *
303 ***************************
304 ***************************
305 ******************************************************************************************/
306 #include "surf/surfxml_parse.h" /* to override surf_parse and bypass the parser */
307 #include "surf/surf_private.h"
308 typedef struct t_host_attr
311 // Mandatory attributes
314 // Optional attributes
316 const char *power_trace;
318 const char *state_trace;
319 //deployment attribute
320 const char* function;
321 xbt_dynar_t args_list;
322 }host_attr,*p_host_attr;
324 typedef struct t_link_attr
329 }link_attr,*p_link_attr;
331 typedef struct t_route_attr
335 xbt_dynar_t links_id;
337 }route_attr,*p_route_attr;
339 //using xbt_dynar_t :
340 static xbt_dynar_t host_list_d ;
341 static xbt_dynar_t link_list_d ;
342 static xbt_dynar_t route_list_d ;
346 * create host resource via CPU model [for MSG]
349 static void create_host(const char* id,double power_peak,double power_sc,
350 const char* power_tr,int state_init,
351 const char* state_tr)
354 double power_scale = 1.0;
355 tmgr_trace_t power_trace = NULL;
356 e_surf_resource_state_t state_initial;
357 tmgr_trace_t state_trace;
359 power_scale = power_sc;
360 if (state_init == -1)
361 state_initial = SURF_RESOURCE_OFF;
363 state_initial = SURF_RESOURCE_ON;
365 power_trace = tmgr_trace_new(power_tr);
367 power_trace = tmgr_trace_new("");
369 state_trace = tmgr_trace_new(state_tr);
371 state_trace = tmgr_trace_new("");
372 current_property_set = xbt_dict_new();
373 surf_host_create_resource(xbt_strdup(id), power_peak, power_scale,
374 power_trace, state_initial, state_trace, current_property_set);
379 *create host resource via workstation_ptask_L07 model [for SimDag]
381 static void create_host_wsL07(const char* id,double power_peak,double power_sc,
382 const char* power_tr,int state_init,
383 const char* state_tr)
385 double power_scale = 1.0;
386 tmgr_trace_t power_trace = NULL;
387 e_surf_resource_state_t state_initial;
388 tmgr_trace_t state_trace;
390 power_scale = power_sc;
391 if (state_init == -1)
392 state_initial = SURF_RESOURCE_OFF;
394 state_initial = SURF_RESOURCE_ON;
396 power_trace = tmgr_trace_new(power_tr);
398 power_trace = tmgr_trace_new("");
400 state_trace = tmgr_trace_new(state_tr);
402 state_trace = tmgr_trace_new("");
403 current_property_set = xbt_dict_new();
404 surf_wsL07_host_create_resource(xbt_strdup(id), power_peak, power_scale,
405 power_trace, state_initial, state_trace, current_property_set);
409 * add new host to platform hosts list
411 static int Host_new(lua_State *L)
414 if(xbt_dynar_is_empty(host_list_d))
415 host_list_d = xbt_dynar_new(sizeof(p_host_attr), &xbt_free_ref);
419 const char *power_trace;
420 const char *state_trace;
421 double power,power_scale;
423 //get values from the table passed as argument
424 if (lua_istable(L,-1)) {
427 lua_pushstring(L,"id");
428 lua_gettable(L, -2 );
429 id = lua_tostring(L,-1);
433 lua_pushstring(L,"power");
434 lua_gettable(L, -2 );
435 power = lua_tonumber(L,-1);
439 lua_pushstring(L,"power_scale");
440 lua_gettable(L, -2 );
441 power_scale = lua_tonumber(L,-1);
445 lua_pushstring(L,"power_trace");
446 lua_gettable(L, -2 );
447 power_trace = lua_tostring(L,-1);
451 lua_pushstring(L,"state_initial");
452 lua_gettable(L, -2 );
453 state_initial = lua_tonumber(L,-1);
457 lua_pushstring(L,"state_trace");
458 lua_gettable(L, -2 );
459 state_trace = lua_tostring(L,-1);
463 ERROR0("Bad Arguments to create host, Should be a table with named arguments");
467 host = malloc(sizeof(host_attr));
469 host->power_peak = power;
470 host->power_scale = power_scale;
471 host->power_trace = power_trace;
472 host->state_initial = state_initial;
473 host->state_trace = state_trace;
474 host->function = NULL;
475 xbt_dynar_push(host_list_d, &host);
481 * add link to platform links list
483 static int Link_new(lua_State *L) // (id,bandwidth,latency)
485 if(xbt_dynar_is_empty(link_list_d))
486 link_list_d = xbt_dynar_new(sizeof(p_link_attr), &xbt_free_ref);
489 double bandwidth,latency;
490 //get values from the table passed as argument
491 if (lua_istable(L,-1)) {
493 lua_pushstring(L,"id");
494 lua_gettable(L, -2 );
495 id = lua_tostring(L,-1);
498 // get bandwidth value
499 lua_pushstring(L,"bandwidth");
500 lua_gettable(L, -2 );
501 bandwidth = lua_tonumber(L,-1);
505 lua_pushstring(L,"latency");
506 lua_gettable(L, -2 );
507 latency = lua_tonumber(L,-1);
511 ERROR0("Bad Arguments to create link, Should be a table with named arguments");
515 p_link_attr link = malloc(sizeof(link_attr));
517 link->bandwidth = bandwidth;
518 link->latency = latency;
519 xbt_dynar_push(link_list_d,&link);
524 * add route to platform routes list
526 static int Route_new(lua_State *L) // (src_id,dest_id,links_number,link_table)
528 if(xbt_dynar_is_empty(route_list_d))
529 route_list_d = xbt_dynar_new(sizeof(p_route_attr), &xbt_free_ref);
530 const char * link_id;
531 p_route_attr route = malloc(sizeof(route_attr));
532 route->src_id = luaL_checkstring(L,1);
533 route->dest_id = luaL_checkstring(L,2);
534 route->links_id = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
536 while (lua_next(L,3) != 0) {
537 link_id = lua_tostring(L, -1);
538 xbt_dynar_push(route->links_id, &link_id);
539 DEBUG2("index = %f , Link_id = %s \n",lua_tonumber(L, -2),lua_tostring(L, -1));
544 //add route to platform's route list
545 xbt_dynar_push(route_list_d,&route);
550 * set function to process
552 static int Host_set_function(lua_State *L) //(host,function,nb_args,list_args)
554 // look for the index of host in host_list
555 const char *host_id = luaL_checkstring(L,1);
556 const char* argument;
560 xbt_dynar_foreach(host_list_d,i,p_host)
562 if(p_host->id == host_id)
564 p_host->function = luaL_checkstring(L,2);
567 p_host->args_list = xbt_dynar_new(sizeof(char *), &xbt_free_ref);
568 // fill the args list
571 while (lua_next(L,3) != 0) {
572 argument = lua_tostring(L, -1);
573 xbt_dynar_push(p_host->args_list, &argument);
574 DEBUG2("index = %f , Arg_id = %s \n",lua_tonumber(L, -2),lua_tostring(L, -1));
583 ERROR1("Host : %s Not Fount !!",host_id);
588 * surf parse bypass platform
589 * through CPU/network Models
592 static int surf_parse_bypass_platform()
597 p_route_attr p_route;
600 xbt_dynar_foreach(host_list_d,i,p_host)
602 create_host(p_host->id,p_host->power_peak,p_host->power_scale,p_host->power_trace,
603 p_host->state_initial,p_host->state_trace);
604 //add to routing model host list
605 surf_route_add_host((char*)p_host->id);
609 xbt_dynar_foreach(link_list_d,i,p_link)
611 surf_link_create_resource((char*)p_link->id,p_link->bandwidth,p_link->latency);
614 xbt_dynar_foreach(route_list_d,i,p_route)
616 surf_route_set_resource((char*)p_route->src_id,(char*)p_route->dest_id,p_route->links_id,0);
620 surf_add_host_traces();
622 surf_add_link_traces();
624 return 0; // must return 0 ?!!
630 * surf parse bypass platform
631 * through workstation_ptask_L07 Model
635 static int surf_wsL07_parse_bypass_platform()
640 p_route_attr p_route;
643 xbt_dynar_foreach(host_list_d,i,p_host)
645 create_host_wsL07(p_host->id,p_host->power_peak,p_host->power_scale,p_host->power_trace,
646 p_host->state_initial,p_host->state_trace);
647 //add to routing model host list
648 surf_route_add_host((char*)p_host->id);
652 xbt_dynar_foreach(link_list_d,i,p_link)
654 surf_wsL07_link_create_resource((char*)p_link->id,p_link->bandwidth,p_link->latency);
657 xbt_dynar_foreach(route_list_d,i,p_route)
659 surf_route_set_resource((char*)p_route->src_id,(char*)p_route->dest_id,p_route->links_id,0);
663 surf_wsL07_add_traces();
670 * surf parse bypass application for MSG Module
672 static int surf_parse_bypass_application()
676 xbt_dynar_foreach(host_list_d,i,p_host)
679 MSG_set_function(p_host->id,p_host->function,p_host->args_list);
684 //***********Register Methods *******************************************//
688 static const luaL_reg Host_methods[] = {
689 {"getByName", Host_get_by_name},
690 {"name", Host_get_name},
691 {"number", Host_number},
693 // Bypass XML Methods
695 {"setFunction", Host_set_function},
699 static int Host_gc(lua_State *L)
701 m_host_t ht = checkHost(L,-1);
706 static int Host_tostring(lua_State *L)
708 lua_pushfstring(L,"Host :%p",lua_touserdata(L,1));
712 static const luaL_reg Host_meta[] = {
714 {"__tostring", Host_tostring},
721 static const luaL_reg Link_methods[] = {
728 static const luaL_reg Route_methods[] ={
734 * Environment related
737 extern lua_State *simgrid_lua_state;
739 static int run_lua_code(int argc,char **argv) {
740 DEBUG1("Run lua code %s",argv[0]);
741 lua_State *L = lua_newthread(simgrid_lua_state);
742 int ref = luaL_ref(simgrid_lua_state, LUA_REGISTRYINDEX); // protect the thread from being garbage collected
745 /* Start the co-routine */
746 lua_getglobal(L,argv[0]);
747 xbt_assert1(lua_isfunction(L,-1),
748 "The lua function %s does not seem to exist",argv[0]);
750 // push arguments onto the stack
753 lua_pushstring(L,argv[i]);
755 // Call the function (in resume)
756 xbt_assert2(lua_pcall(L, argc-1, 1, 0) == 0,
757 "error running function `%s': %s",argv[0], lua_tostring(L, -1));
759 /* retrieve result */
760 if (lua_isnumber(L, -1)) {
761 res = lua_tonumber(L, -1);
762 lua_pop(L, 1); /* pop returned value */
765 luaL_unref(simgrid_lua_state,LUA_REGISTRYINDEX,ref );
766 DEBUG1("Execution of lua code %s is over", (argv ? argv[0] : "(null)"));
769 static int launch_application(lua_State *L) {
770 const char * file = luaL_checkstring(L,1);
771 MSG_function_register_default(run_lua_code);
772 MSG_launch_application(file);
775 #include "simix/simix.h" //FIXME: KILLME when debugging on simix internals become useless
776 static int create_environment(lua_State *L) {
777 const char *file = luaL_checkstring(L,1);
778 DEBUG1("Loading environment file %s",file);
779 MSG_create_environment(file);
780 smx_host_t *hosts = SIMIX_host_get_table();
782 for (i=0;i<SIMIX_host_get_number();i++) {
783 DEBUG1("We have an host %s", SIMIX_host_get_name(hosts[i]));
789 static int debug(lua_State *L) {
790 const char *str = luaL_checkstring(L,1);
794 static int info(lua_State *L) {
795 const char *str = luaL_checkstring(L,1);
799 static int run(lua_State *L) {
803 static int clean(lua_State *L) {
813 * Register platform for MSG
815 static int msg_register_platform(lua_State *L)
817 /* Tell Simgrid we dont wanna use its parser*/
818 surf_parse = surf_parse_bypass_platform;
819 MSG_create_environment(NULL);
824 * Register platform for Simdag
827 static int sd_register_platform(lua_State *L)
829 surf_parse = surf_wsL07_parse_bypass_platform;
830 SD_create_environment(NULL);
834 * Register platform for gras
836 static int gras_register_platform(lua_State *L)
838 /* Tell Simgrid we dont wanna use its parser*/
839 surf_parse = surf_parse_bypass_platform;
840 gras_create_environment(NULL);
845 * Register applicaiton for MSG
847 static int msg_register_application(lua_State *L)
849 MSG_function_register_default(run_lua_code);
850 surf_parse = surf_parse_bypass_application;
851 MSG_launch_application(NULL);
856 * Register application for gras
858 static int gras_register_application(lua_State *L)
860 gras_function_register_default(run_lua_code);
861 surf_parse = surf_parse_bypass_application;
862 gras_launch_application(NULL);
865 static const luaL_Reg simgrid_funcs[] = {
866 { "create_environment", create_environment},
867 { "launch_application", launch_application},
873 { "platform", create_environment},
874 { "application", launch_application},
875 /* methods to bypass XML parser*/
876 { "msg_register_platform",msg_register_platform},
877 { "sd_register_platform",sd_register_platform},
878 { "msg_register_application",msg_register_application},
879 { "gras_register_platform",gras_register_platform},
880 { "gras_register_application",gras_register_application},
884 /* ********************************************************************************* */
885 /* module management functions */
886 /* ********************************************************************************* */
888 extern const char*xbt_ctx_factory_to_use; /*Hack: let msg load directly the right factory */
890 #define LUA_MAX_ARGS_COUNT 10 /* maximum amount of arguments we can get from lua on command line */
892 int luaopen_simgrid(lua_State* L); // Fuck gcc: we don't need that prototype
893 int luaopen_simgrid(lua_State* L) {
895 //xbt_ctx_factory_to_use = "lua";
896 char **argv=malloc(sizeof(char*)*LUA_MAX_ARGS_COUNT);
898 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? */
899 /* Get the command line arguments from the lua interpreter */
900 lua_getglobal(L,"arg");
901 /* if arg is a null value, it means we use lua only as a script to init platform
902 * else it should be a table and then take arg in consideration
904 if(lua_istable(L,-1))
909 lua_pushinteger(L,argc-2);
911 if (lua_isnil(L,-1)) {
914 xbt_assert1(lua_isstring(L,-1),"argv[%d] got from lua is no string",argc-1);
915 xbt_assert2(argc<LUA_MAX_ARGS_COUNT,
916 "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",
917 __FILE__,LUA_MAX_ARGS_COUNT-1);
918 argv[argc-1] = (char*)luaL_checkstring(L,-1);
920 DEBUG1("Got command line argument %s from lua",argv[argc-1]);
925 /* Initialize the MSG core */
926 MSG_global_init(&argc,argv);
927 DEBUG1("Still %d arguments on command line",argc); // FIXME: update the lua's arg table to reflect the changes from SimGrid
929 /* register the core C functions to lua */
930 luaL_register(L, "simgrid", simgrid_funcs);
931 /* register the task methods to lua */
932 luaL_openlib(L,TASK_MODULE_NAME,Task_methods,0); //create methods table,add it to the globals
933 luaL_newmetatable(L,TASK_MODULE_NAME); //create metatable for Task,add it to the Lua registry
934 luaL_openlib(L,0,Task_meta,0);// fill metatable
935 lua_pushliteral(L,"__index");
936 lua_pushvalue(L,-3); //dup methods table
937 lua_rawset(L,-3); //matatable.__index = methods
938 lua_pushliteral(L,"__metatable");
939 lua_pushvalue(L,-3); //dup methods table
940 lua_rawset(L,-3); //hide metatable:metatable.__metatable = methods
941 lua_pop(L,1); //drop metatable
943 /* register the hosts methods to lua*/
944 luaL_openlib(L,HOST_MODULE_NAME,Host_methods,0);
945 luaL_newmetatable(L,HOST_MODULE_NAME);
946 luaL_openlib(L,0,Host_meta,0);
947 lua_pushliteral(L,"__index");
950 lua_pushliteral(L,"__metatable");
955 /* register the links methods to lua*/
956 luaL_openlib(L,LINK_MODULE_NAME,Link_methods,0);
957 luaL_newmetatable(L,LINK_MODULE_NAME);
960 /*register the routes methods to lua*/
961 luaL_openlib(L,ROUTE_MODULE_NAME,Route_methods,0);
962 luaL_newmetatable(L,LINK_MODULE_NAME);
965 /* Keep the context mechanism informed of our lua world today */
966 simgrid_lua_state = L;