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. */
8 #include "simgrid_lua.h"
10 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua, bindings, "Lua Bindings");
12 lua_State *simgrid_lua_state;
14 #define TASK_MODULE_NAME "simgrid.Task"
15 #define HOST_MODULE_NAME "simgrid.Host"
16 // Surf ( bypass XML )
17 #define LINK_MODULE_NAME "simgrid.Link"
18 #define ROUTE_MODULE_NAME "simgrid.Route"
19 #define AS_MODULE_NAME "simgrid.AS"
20 #define TRACE_MODULE_NAME "simgrid.Trace"
22 /* ********************************************************************************* */
23 /* helper functions */
24 /* ********************************************************************************* */
25 static void stackDump(const char *msg, lua_State * L)
30 int top = lua_gettop(L);
33 p += sprintf(p, "STACK(top=%d): ", top);
35 for (i = 1; i <= top; i++) { /* repeat for each level */
36 int t = lua_type(L, i);
39 case LUA_TSTRING: /* strings */
40 p += sprintf(p, "`%s'", lua_tostring(L, i));
43 case LUA_TBOOLEAN: /* booleans */
44 p += sprintf(p, lua_toboolean(L, i) ? "true" : "false");
47 case LUA_TNUMBER: /* numbers */
48 p += sprintf(p, "%g", lua_tonumber(L, i));
52 p += sprintf(p, "Table");
55 default: /* other values */
56 p += sprintf(p, "???");
57 /* if ((ptr = luaL_checkudata(L,i,TASK_MODULE_NAME))) {
60 p+=printf(p,"%s", lua_typename(L, t));
65 p += sprintf(p, " "); /* put a separator */
67 XBT_INFO("%s%s", msg, buff);
70 /** @brief ensures that a userdata on the stack is a task and returns the pointer inside the userdata */
71 static m_task_t checkTask(lua_State * L, int index)
74 luaL_checktype(L, index, LUA_TTABLE);
75 lua_getfield(L, index, "__simgrid_task");
76 pi = (m_task_t *) luaL_checkudata(L, -1, TASK_MODULE_NAME);
78 luaL_typerror(L, index, TASK_MODULE_NAME);
81 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)
115 XBT_DEBUG("Task new...");
116 const char *name = luaL_checkstring(L, 1);
117 int comp_size = luaL_checkint(L, 2);
118 int msg_size = luaL_checkint(L, 3);
119 m_task_t msg_task = MSG_task_create(name, comp_size, msg_size, NULL);
120 lua_newtable(L); /* create a table, put the userdata on top of it */
121 m_task_t *lua_task = (m_task_t *) lua_newuserdata(L, sizeof(m_task_t));
122 *lua_task = msg_task;
123 luaL_getmetatable(L, TASK_MODULE_NAME);
124 lua_setmetatable(L, -2);
125 lua_setfield(L, -2, "__simgrid_task"); /* put the userdata as field of the table */
126 /* remove the args from the stack */
133 static int Task_get_name(lua_State * L)
135 m_task_t tk = checkTask(L, -1);
136 lua_pushstring(L, MSG_task_get_name(tk));
140 static int Task_computation_duration(lua_State * L)
142 m_task_t tk = checkTask(L, -1);
143 lua_pushnumber(L, MSG_task_get_compute_duration(tk));
147 static int Task_execute(lua_State * L)
149 m_task_t tk = checkTask(L, -1);
150 int res = MSG_task_execute(tk);
151 lua_pushnumber(L, res);
155 static int Task_destroy(lua_State * L)
157 m_task_t tk = checkTask(L, -1);
158 int res = MSG_task_destroy(tk);
159 lua_pushnumber(L, res);
163 static int Task_send(lua_State * L)
165 //stackDump("send ",L);
166 m_task_t tk = checkTask(L, -2);
167 const char *mailbox = luaL_checkstring(L, -1);
168 lua_pop(L, 1); // remove the string so that the task is on top of it
169 MSG_task_set_data(tk, L); // Copy my stack into the task, so that the receiver can copy the lua task directly
170 MSG_error_t res = MSG_task_send(tk, mailbox);
171 while (MSG_task_get_data(tk) != NULL) // Don't mess up with my stack: the receiver didn't copy the data yet
172 MSG_process_sleep(0); // yield
177 XBT_ERROR("MSG_task_send failed : Timeout");
179 case MSG_TRANSFER_FAILURE:
180 XBT_ERROR("MSG_task_send failed : Transfer Failure");
182 case MSG_HOST_FAILURE:
183 XBT_ERROR("MSG_task_send failed : Host Failure ");
187 ("MSG_task_send failed : Unexpected error , please report this bug");
193 static int Task_recv(lua_State * L)
196 const char *mailbox = luaL_checkstring(L, -1);
197 MSG_error_t res = MSG_task_receive(&tk, mailbox);
199 lua_State *sender_stack = MSG_task_get_data(tk);
200 lua_xmove(sender_stack, L, 1); // copy the data directly from sender's stack
201 MSG_task_set_data(tk, NULL);
206 XBT_ERROR("MSG_task_receive failed : Timeout");
208 case MSG_TRANSFER_FAILURE:
209 XBT_ERROR("MSG_task_receive failed : Transfer Failure");
211 case MSG_HOST_FAILURE:
212 XBT_ERROR("MSG_task_receive failed : Host Failure ");
216 ("MSG_task_receive failed : Unexpected error , please report this bug");
223 static const luaL_reg Task_methods[] = {
225 {"name", Task_get_name},
226 {"computation_duration", Task_computation_duration},
227 {"execute", Task_execute},
228 {"destroy", Task_destroy},
234 static int Task_gc(lua_State * L)
236 m_task_t tk = checkTask(L, -1);
238 MSG_task_destroy(tk);
242 static int Task_tostring(lua_State * L)
244 lua_pushfstring(L, "Task :%p", lua_touserdata(L, 1));
248 static const luaL_reg Task_meta[] = {
250 {"__tostring", Task_tostring},
257 static m_host_t checkHost(lua_State * L, int index)
260 luaL_checktype(L, index, LUA_TTABLE);
261 lua_getfield(L, index, "__simgrid_host");
262 pi = (m_host_t *) luaL_checkudata(L, -1, HOST_MODULE_NAME);
264 luaL_typerror(L, index, HOST_MODULE_NAME);
267 luaL_error(L, "null Host");
272 static int Host_get_by_name(lua_State * L)
274 const char *name = luaL_checkstring(L, 1);
275 XBT_DEBUG("Getting Host from name...");
276 m_host_t msg_host = MSG_get_host_by_name(name);
278 luaL_error(L, "null Host : MSG_get_host_by_name failled");
280 lua_newtable(L); /* create a table, put the userdata on top of it */
281 m_host_t *lua_host = (m_host_t *) lua_newuserdata(L, sizeof(m_host_t));
282 *lua_host = msg_host;
283 luaL_getmetatable(L, HOST_MODULE_NAME);
284 lua_setmetatable(L, -2);
285 lua_setfield(L, -2, "__simgrid_host"); /* put the userdata as field of the table */
286 /* remove the args from the stack */
292 static int Host_get_name(lua_State * L)
294 m_host_t ht = checkHost(L, -1);
295 lua_pushstring(L, MSG_host_get_name(ht));
299 static int Host_number(lua_State * L)
301 lua_pushnumber(L, MSG_get_host_number());
305 static int Host_at(lua_State * L)
307 int index = luaL_checkinteger(L, 1);
308 m_host_t host = MSG_get_host_table()[index - 1]; // lua indexing start by 1 (lua[1] <=> C[0])
309 lua_newtable(L); /* create a table, put the userdata on top of it */
310 m_host_t *lua_host = (m_host_t *) lua_newuserdata(L, sizeof(m_host_t));
312 luaL_getmetatable(L, HOST_MODULE_NAME);
313 lua_setmetatable(L, -2);
314 lua_setfield(L, -2, "__simgrid_host"); /* put the userdata as field of the table */
319 static int Host_self(lua_State * L)
321 m_host_t host = MSG_host_self();
323 m_host_t *lua_host =(m_host_t *)lua_newuserdata(L,sizeof(m_host_t));
325 luaL_getmetatable(L, HOST_MODULE_NAME);
326 lua_setmetatable(L, -2);
327 lua_setfield(L, -2, "__simgrid_host");
332 static int Host_get_property_value(lua_State * L)
334 m_host_t ht = checkHost(L, -2);
335 const char *prop = luaL_checkstring(L, -1);
336 lua_pushstring(L,MSG_host_get_property_value(ht,prop));
340 /* ********************************************************************************* */
341 /* lua_stub_generator functions */
342 /* ********************************************************************************* */
344 xbt_dict_t process_function_set;
345 xbt_dynar_t process_list;
346 xbt_dict_t machine_set;
347 static s_process_t process;
349 void s_process_free(void *process)
351 s_process_t *p = (s_process_t *) process;
353 for (i = 0; i < p->argc; i++)
359 static int gras_add_process_function(lua_State * L)
362 const char *process_host = luaL_checkstring(L, 1);
363 const char *process_function = luaL_checkstring(L, 2);
365 if (xbt_dict_is_empty(machine_set)
366 || xbt_dict_is_empty(process_function_set)
367 || xbt_dynar_is_empty(process_list)) {
368 process_function_set = xbt_dict_new();
369 process_list = xbt_dynar_new(sizeof(s_process_t), s_process_free);
370 machine_set = xbt_dict_new();
373 xbt_dict_set(machine_set, process_host, NULL, NULL);
374 xbt_dict_set(process_function_set, process_function, NULL, NULL);
377 process.argv = xbt_new(char *, 1);
378 process.argv[0] = xbt_strdup(process_function);
379 process.host = strdup(process_host);
382 while (lua_next(L, 3) != 0) {
383 arg = lua_tostring(L, -1);
386 xbt_realloc(process.argv, (process.argc) * sizeof(char *));
387 process.argv[(process.argc) - 1] = xbt_strdup(arg);
389 XBT_DEBUG("index = %f , arg = %s \n", lua_tonumber(L, -2),
390 lua_tostring(L, -1));
394 //add to the process list
395 xbt_dynar_push(process_list, &process);
402 static int gras_generate(lua_State * L)
404 const char *project_name = luaL_checkstring(L, 1);
405 generate_sim(project_name);
406 generate_rl(project_name);
407 generate_makefile_local(project_name);
411 /***********************************
413 **********************************/
414 static int trace_start(lua_State *L)
422 static int trace_category(lua_State * L)
425 TRACE_category(luaL_checkstring(L, 1));
430 static int trace_set_task_category(lua_State *L)
433 TRACE_msg_set_task_category(checkTask(L, -2), luaL_checkstring(L, -1));
438 static int trace_end(lua_State *L)
445 //***********Register Methods *******************************************//
449 static const luaL_reg Host_methods[] = {
450 {"getByName", Host_get_by_name},
451 {"name", Host_get_name},
452 {"number", Host_number},
455 {"getPropValue",Host_get_property_value},
456 // Bypass XML Methods
457 {"setFunction", console_set_function},
461 static int Host_gc(lua_State * L)
463 m_host_t ht = checkHost(L, -1);
469 static int Host_tostring(lua_State * L)
471 lua_pushfstring(L, "Host :%p", lua_touserdata(L, 1));
475 static const luaL_reg Host_meta[] = {
477 {"__tostring", Host_tostring},
484 static const luaL_reg AS_methods[] = {
485 {"new", console_add_AS},
486 {"addHost",console_add_host},
487 {"addLink",console_add_link},
488 {"addRoute",console_add_route},
495 static const luaL_reg Trace_methods[] = {
496 {"start",trace_start},
497 {"category",trace_category},
498 {"setTaskCategory",trace_set_task_category},
499 {"finish",trace_end},
503 * Environment related
506 //extern lua_State *simgrid_lua_state;
508 static int run_lua_code(int argc, char **argv)
510 XBT_DEBUG("Run lua code %s", argv[0]);
511 lua_State *L = lua_newthread(simgrid_lua_state);
512 int ref = luaL_ref(simgrid_lua_state, LUA_REGISTRYINDEX); // protect the thread from being garbage collected
515 /* Start the co-routine */
516 lua_getglobal(L, argv[0]);
517 xbt_assert1(lua_isfunction(L, -1),
518 "The lua function %s does not seem to exist", argv[0]);
520 // push arguments onto the stack
522 for (i = 1; i < argc; i++)
523 lua_pushstring(L, argv[i]);
525 // Call the function (in resume)
526 xbt_assert2(lua_pcall(L, argc - 1, 1, 0) == 0,
527 "error running function `%s': %s", argv[0], lua_tostring(L,
530 /* retrieve result */
531 if (lua_isnumber(L, -1)) {
532 res = lua_tonumber(L, -1);
533 lua_pop(L, 1); /* pop returned value */
536 luaL_unref(simgrid_lua_state, LUA_REGISTRYINDEX, ref);
537 XBT_DEBUG("Execution of lua code %s is over", (argv ? argv[0] : "(null)"));
541 static int launch_application(lua_State * L)
543 const char *file = luaL_checkstring(L, 1);
544 MSG_function_register_default(run_lua_code);
545 MSG_launch_application(file);
549 #include "simix/simix.h" //FIXME: KILLME when debugging on simix internals become useless
550 static int create_environment(lua_State * L)
552 const char *file = luaL_checkstring(L, 1);
553 XBT_DEBUG("Loading environment file %s", file);
554 MSG_create_environment(file);
557 xbt_dict_t hosts = SIMIX_host_get_dict();
562 xbt_dict_foreach(hosts, c, name, host) {
563 XBT_DEBUG("We have an host %s", SIMIX_host_get_name(host));
570 static int debug(lua_State * L)
572 const char *str = luaL_checkstring(L, 1);
573 XBT_DEBUG("%s", str);
577 static int info(lua_State * L)
579 const char *str = luaL_checkstring(L, 1);
584 static int run(lua_State * L)
590 static int clean(lua_State * L)
597 * Bypass XML Parser (lua console)
601 * Register platform for MSG
603 static int msg_register_platform(lua_State * L)
605 /* Tell Simgrid we dont wanna use its parser */
606 surf_parse = console_parse_platform;
607 surf_parse_reset_callbacks();
608 surf_config_models_setup(NULL);
609 MSG_create_environment(NULL);
614 * Register platform for Simdag
617 static int sd_register_platform(lua_State * L)
619 surf_parse = console_parse_platform_wsL07;
620 surf_parse_reset_callbacks();
621 surf_config_models_setup(NULL);
622 SD_create_environment(NULL);
627 * Register platform for gras
629 static int gras_register_platform(lua_State * L)
631 /* Tell Simgrid we dont wanna use surf parser */
632 surf_parse = console_parse_platform;
633 surf_parse_reset_callbacks();
634 surf_config_models_setup(NULL);
635 gras_create_environment(NULL);
640 * Register applicaiton for MSG
642 static int msg_register_application(lua_State * L)
644 MSG_function_register_default(run_lua_code);
645 surf_parse = console_parse_application;
646 MSG_launch_application(NULL);
651 * Register application for gras
653 static int gras_register_application(lua_State * L)
655 gras_function_register_default(run_lua_code);
656 surf_parse = console_parse_application;
657 gras_launch_application(NULL);
661 static const luaL_Reg simgrid_funcs[] = {
662 {"create_environment", create_environment},
663 {"launch_application", launch_application},
669 {"platform", create_environment},
670 {"application", launch_application},
671 /* methods to bypass XML parser */
672 {"msg_register_platform", msg_register_platform},
673 {"sd_register_platform", sd_register_platform},
674 {"msg_register_application", msg_register_application},
675 {"gras_register_platform", gras_register_platform},
676 {"gras_register_application", gras_register_application},
677 /* gras sub generator method */
678 {"gras_set_process_function", gras_add_process_function},
679 {"gras_generate", gras_generate},
683 /* ********************************************************************************* */
684 /* module management functions */
685 /* ********************************************************************************* */
687 #define LUA_MAX_ARGS_COUNT 10 /* maximum amount of arguments we can get from lua on command line */
689 int luaopen_simgrid(lua_State * L); // Fuck gcc: we don't need that prototype
690 int luaopen_simgrid(lua_State * L)
692 XBT_DEBUG("Luaopen_Simgrid *****");
693 char **argv = malloc(sizeof(char *) * LUA_MAX_ARGS_COUNT);
695 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? */
696 /* Get the command line arguments from the lua interpreter */
697 lua_getglobal(L, "arg");
698 /* if arg is a null value, it means we use lua only as a script to init platform
699 * else it should be a table and then take arg in consideration
701 if (lua_istable(L, -1)) {
705 lua_pushinteger(L, argc - 2);
707 if (lua_isnil(L, -1)) {
710 xbt_assert1(lua_isstring(L, -1),
711 "argv[%d] got from lua is no string", argc - 1);
712 xbt_assert2(argc < LUA_MAX_ARGS_COUNT,
713 "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",
714 __FILE__, LUA_MAX_ARGS_COUNT - 1);
715 argv[argc - 1] = (char *) luaL_checkstring(L, -1);
717 XBT_DEBUG("Got command line argument %s from lua", argv[argc - 1]);
722 /* Initialize the MSG core */
723 MSG_global_init(&argc, argv);
724 XBT_DEBUG("Still %d arguments on command line", argc); // FIXME: update the lua's arg table to reflect the changes from SimGrid
726 /* register the core C functions to lua */
727 luaL_register(L, "simgrid", simgrid_funcs);
728 /* register the task methods to lua */
729 luaL_openlib(L, TASK_MODULE_NAME, Task_methods, 0); //create methods table,add it to the globals
730 luaL_newmetatable(L, TASK_MODULE_NAME); //create metatable for Task,add it to the Lua registry
731 luaL_openlib(L, 0, Task_meta, 0); // fill metatable
732 lua_pushliteral(L, "__index");
733 lua_pushvalue(L, -3); //dup methods table
734 lua_rawset(L, -3); //matatable.__index = methods
735 lua_pushliteral(L, "__metatable");
736 lua_pushvalue(L, -3); //dup methods table
737 lua_rawset(L, -3); //hide metatable:metatable.__metatable = methods
738 lua_pop(L, 1); //drop metatable
740 /* register the hosts methods to lua */
741 luaL_openlib(L, HOST_MODULE_NAME, Host_methods, 0);
742 luaL_newmetatable(L, HOST_MODULE_NAME);
743 luaL_openlib(L, 0, Host_meta, 0);
744 lua_pushliteral(L, "__index");
745 lua_pushvalue(L, -3);
747 lua_pushliteral(L, "__metatable");
748 lua_pushvalue(L, -3);
752 /* register the links methods to lua */
753 luaL_openlib(L, AS_MODULE_NAME, AS_methods, 0);
754 luaL_newmetatable(L, AS_MODULE_NAME);
759 /*register the Tracing functions to lua */
760 luaL_openlib(L, TRACE_MODULE_NAME, Trace_methods, 0);
761 luaL_newmetatable(L, TRACE_MODULE_NAME);
764 /* Keep the context mechanism informed of our lua world today */
765 simgrid_lua_state = L;