-/* Copyright (c) 2010. The SimGrid Team.
+/* Copyright (c) 2010-2015. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
/* SimGrid Lua bindings */
-#include "simgrid_lua.h"
-#include "lua_state_cloner.h"
+#include "lua_private.h"
#include "lua_utils.h"
+#include "xbt.h"
+#include "simgrid/msg.h"
+#include "simgrid/simdag.h"
+#include "surf/surfxml_parse.h"
+#include <lauxlib.h>
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua, bindings, "Lua Bindings");
-
-#define TASK_MODULE_NAME "simgrid.task"
-#define HOST_MODULE_NAME "simgrid.host"
-// Surf (bypass XML)
-#define LINK_MODULE_NAME "simgrid.link"
-#define ROUTE_MODULE_NAME "simgrid.route"
-#define PLATF_MODULE_NAME "simgrid.platf"
-
-static lua_State* sglua_maestro_state;
-
-static void register_c_functions(lua_State *L);
-/**
- * \brief Like luaL_checkudata, with additional debug logs.
- * \param L a lua state
- * \param ud index of the userdata to check in the stack
- * \param tname key of the metatable of this userdata in the registry
- */
-static void* my_checkudata(lua_State* L, int ud, const char* tname) {
-
- XBT_DEBUG("Checking the userdata: ud = %d", ud);
- sglua_stack_dump("my_checkudata: ", L);
- void* p = lua_touserdata(L, ud);
- lua_getfield(L, LUA_REGISTRYINDEX, tname);
- const void* correct_mt = lua_topointer(L, -1);
-
- int has_mt = lua_getmetatable(L, ud);
- XBT_DEBUG("Checking the userdata: has metatable ? %d", has_mt);
- const void* actual_mt = NULL;
- if (has_mt) {
- actual_mt = lua_topointer(L, -1);
- lua_pop(L, 1);
- }
- XBT_DEBUG("Checking the task's metatable: expected %p, found %p", correct_mt, actual_mt);
- sglua_stack_dump("my_checkudata: ", L);
-
- if (p == NULL || !lua_getmetatable(L, ud) || !lua_rawequal(L, -1, -2))
- luaL_typerror(L, ud, tname);
- lua_pop(L, 2);
- return p;
-}
-
-/**
- * @brief Ensures that a value is a valid task and returns it.
- * @param L a Lua state
- * @param index an index in the Lua stack
- * @return the task at this index
- */
-static m_task_t sglua_checktask(lua_State* L, int index)
-{
- sglua_stack_dump("check task: ", L);
- luaL_checktype(L, index, LUA_TTABLE);
- /* ... task ... */
- lua_getfield(L, index, "__simgrid_task");
- /* ... task ... ctask */
- m_task_t task = *((m_task_t*) luaL_checkudata(L, -1, TASK_MODULE_NAME));
- lua_pop(L, 1);
- /* ... task ... */
-
- if (task == NULL) {
- luaL_error(L, "This task was sent to someone else, you cannot access it anymore");
- }
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua, bindings, "Lua Bindings");
- return task;
-}
+int luaopen_simgrid(lua_State *L);
+static void sglua_register_c_functions(lua_State *L);
/* ********************************************************************************* */
-/* wrapper functions */
+/* simgrid API */
/* ********************************************************************************* */
/**
- * \brief Creates a new task and leaves it onto the stack.
+ * \brief Prints a log string with debug level.
+ * \param L a Lua state
+ * \return number of values returned to Lua
*
- * Lua arguments:
- * - task name (string)
- * - computation size (integer)
- * - communication size (integer)
+ * - Argument 1 (string): the text to print
*/
-static int l_task_new(lua_State* L)
-{
- XBT_DEBUG("Task new");
- const char* name = luaL_checkstring(L, 1);
- int comp_size = luaL_checkint(L, 2);
- int msg_size = luaL_checkint(L, 3);
- /* name comp comm */
- lua_settop(L, 0);
- /* -- */
- m_task_t msg_task = MSG_task_create(name, comp_size, msg_size, NULL);
-
- lua_newtable(L);
- /* task */
- m_task_t* lua_task = (m_task_t*) lua_newuserdata(L, sizeof(m_task_t));
- /* task ctask */
- *lua_task = msg_task;
- luaL_getmetatable(L, TASK_MODULE_NAME);
- /* task ctask mt */
- lua_setmetatable(L, -2);
- /* task ctask */
- lua_setfield(L, -2, "__simgrid_task");
- /* task */
- return 1;
-}
-
-static int l_task_get_name(lua_State* L)
-{
- m_task_t task = sglua_checktask(L, 1);
- lua_pushstring(L, MSG_task_get_name(task));
- return 1;
-}
-
-static int l_task_computation_duration(lua_State* L)
-{
- m_task_t task = sglua_checktask(L, 1);
- lua_pushnumber(L, MSG_task_get_compute_duration(task));
- return 1;
-}
-
-static int l_task_execute(lua_State* L)
-{
- m_task_t task = sglua_checktask(L, 1);
- int res = MSG_task_execute(task);
- lua_pushnumber(L, res);
- return 1;
-}
-
-static int l_task_send(lua_State* L)
-{
- m_task_t task = sglua_checktask(L, 1);
- const char* mailbox = luaL_checkstring(L, 2);
- /* task mailbox */
- lua_settop(L, 1);
- /* task */
- /* copy my stack into the task, so that the receiver can copy the lua task */
- MSG_task_set_data(task, L);
- MSG_error_t res = MSG_task_send(task, mailbox);
- while (MSG_task_get_data(task) != NULL) {
- /* don't mess up with my stack: the receiver didn't copy the data yet */
- MSG_process_sleep(0);
- }
-
- if (res == MSG_OK) {
- /* the receiver is the owner of the task and may destroy it:
- * remove the C task on my side so that I don't garbage collect it */
- lua_getfield(L, 1, "__simgrid_task");
- /* task ctask */
- m_task_t* udata = (m_task_t*) luaL_checkudata(L, -1, TASK_MODULE_NAME);
- *udata = NULL;
- lua_pop(L, 1);
- /* task */
- }
- else {
- switch (res) {
- case MSG_TIMEOUT:
- XBT_DEBUG("MSG_task_send failed : Timeout");
- break;
- case MSG_TRANSFER_FAILURE:
- XBT_DEBUG("MSG_task_send failed : Transfer Failure");
- break;
- case MSG_HOST_FAILURE:
- XBT_DEBUG("MSG_task_send failed : Host Failure ");
- break;
- default:
- XBT_ERROR
- ("MSG_task_send failed : Unexpected error , please report this bug");
- break;
- }
- }
- return 0;
-}
-
-static int l_task_recv_with_timeout(lua_State *L)
-{
- m_task_t task = NULL;
- const char* mailbox = luaL_checkstring(L, 1);
- int timeout = luaL_checknumber(L, 2);
- /* mailbox timeout */
- lua_settop(L, 0);
- /* -- */
- MSG_error_t res = MSG_task_receive_with_timeout(&task, mailbox, timeout);
-
- if (res == MSG_OK) {
- /* copy the data directly from sender's stack */
- lua_State* sender_stack = MSG_task_get_data(task);
- sglua_copy_value(sender_stack, L);
- /* task */
- MSG_task_set_data(task, NULL);
- }
- else {
- switch (res) {
- case MSG_TIMEOUT:
- XBT_DEBUG("MSG_task_receive failed : Timeout");
- break;
- case MSG_TRANSFER_FAILURE:
- XBT_DEBUG("MSG_task_receive failed : Transfer Failure");
- break;
- case MSG_HOST_FAILURE:
- XBT_DEBUG("MSG_task_receive failed : Host Failure ");
- break;
- default:
- XBT_ERROR("MSG_task_receive failed : Unexpected error , please report this bug");
- break;
- }
- lua_pushnil(L);
- /* nil */
- }
- /* task/nil */
- return 1;
-}
-
-static int l_task_recv(lua_State * L)
-{
- lua_pushnumber(L, -1.0);
- return l_task_recv_with_timeout(L);
-}
-
-static const luaL_reg task_functions[] = {
- {"new", l_task_new},
- {"name", l_task_get_name},
- {"computation_duration", l_task_computation_duration},
- {"execute", l_task_execute},
- {"send", l_task_send},
- {"recv", l_task_recv},
- {"recv_timeout", l_task_recv_with_timeout},
- {NULL, NULL}
-};
+static int debug(lua_State* L) {
-static int l_task_gc(lua_State* L)
-{
- /* ctask */
- m_task_t task = *((m_task_t*) luaL_checkudata(L, 1, TASK_MODULE_NAME));
- /* the task is NULL if I sent it to someone else */
- if (task != NULL) {
- MSG_task_destroy(task);
- }
+ const char* str = luaL_checkstring(L, 1);
+ XBT_DEBUG("%s", str);
return 0;
}
-static int l_task_tostring(lua_State* L)
-{
- m_task_t task = sglua_checktask(L, 1);
- lua_pushfstring(L, "Task: %p", task);
- return 1;
-}
-
-static const luaL_reg task_meta[] = {
- {"__gc", l_task_gc},
- {"__tostring", l_task_tostring},
- {NULL, NULL}
-};
-
/**
- * Host
+ * \brief Prints a log string with info level.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (string): the text to print
*/
-static m_host_t sglua_checkhost(lua_State * L, int index)
-{
- m_host_t *pi, ht;
- luaL_checktype(L, index, LUA_TTABLE);
- lua_getfield(L, index, "__simgrid_host");
- pi = (m_host_t *) luaL_checkudata(L, lua_gettop(L), HOST_MODULE_NAME);
- if (pi == NULL)
- luaL_typerror(L, index, HOST_MODULE_NAME);
- ht = *pi;
- if (!ht)
- luaL_error(L, "null Host");
- lua_pop(L, 1);
- return ht;
-}
-
-static int l_host_get_by_name(lua_State * L)
-{
- const char *name = luaL_checkstring(L, 1);
- XBT_DEBUG("Getting Host from name...");
- m_host_t msg_host = MSG_get_host_by_name(name);
- if (!msg_host) {
- luaL_error(L, "null Host : MSG_get_host_by_name failed");
- }
- lua_newtable(L); /* create a table, put the userdata on top of it */
- m_host_t *lua_host = (m_host_t *) lua_newuserdata(L, sizeof(m_host_t));
- *lua_host = msg_host;
- luaL_getmetatable(L, HOST_MODULE_NAME);
- lua_setmetatable(L, -2);
- lua_setfield(L, -2, "__simgrid_host"); /* put the userdata as field of the table */
- /* remove the args from the stack */
- lua_remove(L, 1);
- return 1;
-}
-
-static int l_host_get_name(lua_State * L)
-{
- m_host_t ht = sglua_checkhost(L, -1);
- lua_pushstring(L, MSG_host_get_name(ht));
- return 1;
-}
-
-static int l_host_number(lua_State * L)
-{
- lua_pushnumber(L, MSG_get_host_number());
- return 1;
-}
-
-static int l_host_at(lua_State * L)
-{
- int index = luaL_checkinteger(L, 1);
- m_host_t host = MSG_get_host_table()[index - 1]; // lua indexing start by 1 (lua[1] <=> C[0])
- lua_newtable(L); /* create a table, put the userdata on top of it */
- m_host_t *lua_host = (m_host_t *) lua_newuserdata(L, sizeof(m_host_t));
- *lua_host = host;
- luaL_getmetatable(L, HOST_MODULE_NAME);
- lua_setmetatable(L, -2);
- lua_setfield(L, -2, "__simgrid_host"); /* put the userdata as field of the table */
- return 1;
-
-}
-
-static int l_host_self(lua_State * L)
-{
- /* -- */
- m_host_t host = MSG_host_self();
- lua_newtable(L);
- /* table */
- m_host_t* lua_host = (m_host_t*) lua_newuserdata(L, sizeof(m_host_t));
- /* table ud */
- *lua_host = host;
- luaL_getmetatable(L, HOST_MODULE_NAME);
- /* table ud mt */
- lua_setmetatable(L, -2);
- /* table ud */
- lua_setfield(L, -2, "__simgrid_host");
- /* table */
- return 1;
-}
-
-static int l_host_get_property_value(lua_State * L)
-{
- m_host_t ht = sglua_checkhost(L, -2);
- const char *prop = luaL_checkstring(L, -1);
- lua_pushstring(L,MSG_host_get_property_value(ht,prop));
- return 1;
-}
-
-static int l_host_sleep(lua_State *L)
-{
- int time = luaL_checknumber(L, -1);
- MSG_process_sleep(time);
- return 1;
-}
-
-static int l_host_destroy(lua_State *L)
-{
- m_host_t ht = sglua_checkhost(L, -1);
- __MSG_host_destroy(ht);
- return 1;
-}
-
-/* ********************************************************************************* */
-/* lua_stub_generator functions */
-/* ********************************************************************************* */
-
-xbt_dict_t process_function_set;
-xbt_dynar_t process_list;
-xbt_dict_t machine_set;
-static s_process_t process;
+static int info(lua_State* L) {
-void s_process_free(void *process)
-{
- s_process_t *p = (s_process_t *) process;
- int i;
- for (i = 0; i < p->argc; i++)
- free(p->argv[i]);
- free(p->argv);
- free(p->host);
-}
-
-static int gras_add_process_function(lua_State * L)
-{
- const char *arg;
- const char *process_host = luaL_checkstring(L, 1);
- const char *process_function = luaL_checkstring(L, 2);
-
- if (xbt_dict_is_empty(machine_set)
- || xbt_dict_is_empty(process_function_set)
- || xbt_dynar_is_empty(process_list)) {
- process_function_set = xbt_dict_new();
- process_list = xbt_dynar_new(sizeof(s_process_t), s_process_free);
- machine_set = xbt_dict_new();
- }
-
- xbt_dict_set(machine_set, process_host, NULL, NULL);
- xbt_dict_set(process_function_set, process_function, NULL, NULL);
-
- process.argc = 1;
- process.argv = xbt_new(char *, 1);
- process.argv[0] = xbt_strdup(process_function);
- process.host = strdup(process_host);
-
- lua_pushnil(L);
- while (lua_next(L, 3) != 0) {
- arg = lua_tostring(L, -1);
- process.argc++;
- process.argv =
- xbt_realloc(process.argv, (process.argc) * sizeof(char *));
- process.argv[(process.argc) - 1] = xbt_strdup(arg);
-
- XBT_DEBUG("index = %f , arg = %s \n", lua_tonumber(L, -2),
- lua_tostring(L, -1));
- lua_pop(L, 1);
- }
- lua_pop(L, 1);
- //add to the process list
- xbt_dynar_push(process_list, &process);
+ const char* str = luaL_checkstring(L, 1);
+ XBT_INFO("%s", str);
return 0;
}
+static int error(lua_State* L) {
-static int gras_generate(lua_State * L)
-{
- const char *project_name = luaL_checkstring(L, 1);
- generate_sim(project_name);
- generate_rl(project_name);
- generate_makefile_local(project_name);
+ const char* str = luaL_checkstring(L, 1);
+ XBT_ERROR("%s", str);
return 0;
}
+static int critical(lua_State* L) {
-// *********** Register Methods ******************************************* //
-
-/*
- * Host Methods
- */
-static const luaL_reg host_functions[] = {
- {"get_by_name", l_host_get_by_name},
- {"name", l_host_get_name},
- {"number", l_host_number},
- {"at", l_host_at},
- {"self", l_host_self},
- {"get_prop_value", l_host_get_property_value},
- {"sleep", l_host_sleep},
- {"destroy", l_host_destroy},
- // Bypass XML Methods
- {"set_function", console_set_function},
- {"set_property", console_host_set_property},
- {NULL, NULL}
-};
-
-static int l_host_gc(lua_State * L)
-{
- m_host_t ht = sglua_checkhost(L, -1);
- if (ht)
- ht = NULL;
+ const char* str = luaL_checkstring(L, 1);
+ XBT_CRITICAL("%s", str);
return 0;
}
-static int l_host_tostring(lua_State * L)
-{
- lua_pushfstring(L, "Host :%p", lua_touserdata(L, 1));
- return 1;
-}
-
-static const luaL_reg host_meta[] = {
- {"__gc", l_host_gc},
- {"__tostring", l_host_tostring},
- {0, 0}
-};
-
-/*
- * AS Methods
- */
-static const luaL_reg platf_functions[] = {
- {"open", console_open},
- {"close", console_close},
- {"AS_open", console_AS_open},
- {"AS_close", console_AS_close},
- {"host_new", console_add_host},
- {"link_new", console_add_link},
- {"router_new", console_add_router},
- {"route_new", console_add_route},
- {NULL, NULL}
-};
-
-/*
- * Environment related
- */
-
/**
- * @brief Runs a Lua function as a new simulated process.
- * @param argc number of arguments of the function
- * @param argv name of the Lua function and array of its arguments
- * @return result of the function
+ * @brief Dumps a lua table with XBT_DEBUG
+ *
+ * This function can be called from within lua via "simgrid.dump(table)". It will
+ * then dump the table via XBT_DEBUG
*/
-static int run_lua_code(int argc, char **argv)
-{
- XBT_DEBUG("Run lua code %s", argv[0]);
-
- lua_State *L = sglua_clone_maestro();
- int res = 1;
-
- /* start the function */
- lua_getglobal(L, argv[0]);
- xbt_assert(lua_isfunction(L, -1),
- "The lua function %s does not seem to exist", argv[0]);
-
- /* push arguments onto the stack */
- int i;
- for (i = 1; i < argc; i++)
- lua_pushstring(L, argv[i]);
-
- /* call the function */
- _XBT_GNUC_UNUSED int err;
- err = lua_pcall(L, argc - 1, 1, 0);
- xbt_assert(err == 0, "error running function `%s': %s", argv[0],
- lua_tostring(L, -1));
-
- /* retrieve result */
- if (lua_isnumber(L, -1)) {
- res = lua_tonumber(L, -1);
- lua_pop(L, 1); /* pop returned value */
- }
-
- XBT_DEBUG("Execution of Lua code %s is over", (argv ? argv[0] : "(null)"));
-
- return res;
-}
-
-static int launch_application(lua_State * L)
-{
- const char *file = luaL_checkstring(L, 1);
- MSG_function_register_default(run_lua_code);
- MSG_launch_application(file);
- return 0;
-}
-
-static int create_environment(lua_State * L)
-{
- const char *file = luaL_checkstring(L, 1);
- XBT_DEBUG("Loading environment file %s", file);
- MSG_create_environment(file);
- return 0;
-}
-
-static int debug(lua_State * L)
-{
- const char *str = luaL_checkstring(L, 1);
- XBT_DEBUG("%s", str);
- return 0;
-}
-
-static int info(lua_State * L)
-{
- const char *str = luaL_checkstring(L, 1);
- XBT_INFO("%s", str);
- return 0;
-}
+static int dump(lua_State* L) {
+ int argc = lua_gettop(L);
-static int run(lua_State * L)
-{
- MSG_main();
- return 0;
-}
+ for (int i = 1; i <= argc; i++) {
+ if (lua_istable(L, i)) {
+ lua_pushnil(L); /* table nil */
-static int clean(lua_State * L)
-{
- MSG_clean();
- return 0;
-}
-
-/*
- * Bypass XML Parser (lua console)
- */
-
-/*
- * Register platform for MSG
- */
-static int msg_register_platform(lua_State * L)
-{
- /* Tell Simgrid we dont wanna use its parser */
- //surf_parse = console_parse_platform;
- surf_parse_reset_callbacks();
- MSG_create_environment(NULL);
- return 0;
-}
+ //lua_next pops the topmost element from the stack and
+ //gets the next pair from the table at the specified index
+ while (lua_next(L, i)) { /* table key val */
+ // we need to copy here, as a cast from "Number" to "String"
+ // could happen in Lua.
+ // see remark in the lua manual, function "lua_tolstring"
+ // http://www.lua.org/manual/5.3/manual.html#lua_tolstring
-/*
- * Register platform for Simdag
- */
+ lua_pushvalue(L, -2); /* table key val key */
-static int sd_register_platform(lua_State * L)
-{
- //surf_parse = console_parse_platform_wsL07;
- surf_parse_reset_callbacks();
- SD_create_environment(NULL);
- return 0;
-}
+ const char *key = lua_tostring(L, -1); /* table key val key */
+ const char *val = lua_tostring(L, -2); /* table key val key */
-/*
- * Register platform for gras
- */
-static int gras_register_platform(lua_State * L)
-{
- //surf_parse = console_parse_platform;
- surf_parse_reset_callbacks();
- gras_create_environment(NULL);
- return 0;
-}
+ XBT_DEBUG("%s", sglua_keyvalue_tostring(L, -1, -2));
+ }
-/**
- * Register applicaiton for MSG
- */
-static int msg_register_application(lua_State * L)
-{
- MSG_function_register_default(run_lua_code);
- //surf_parse = console_parse_application;
- MSG_launch_application(NULL);
- return 0;
-}
+ lua_settop(L, argc); // Remove everything except the initial arguments
+ }
+ }
-/*
- * Register application for gras
- */
-static int gras_register_application(lua_State * L)
-{
- gras_function_register_default(run_lua_code);
- //surf_parse = console_parse_application;
- gras_launch_application(NULL);
return 0;
}
static const luaL_Reg simgrid_functions[] = {
- {"create_environment", create_environment},
- {"launch_application", launch_application},
+ {"dump", dump},
{"debug", debug},
{"info", info},
- {"run", run},
- {"clean", clean},
+ {"critical", critical},
+ {"error", error},
/* short names */
- {"platform", create_environment},
- {"application", launch_application},
/* methods to bypass XML parser */
- {"msg_register_platform", msg_register_platform},
- {"sd_register_platform", sd_register_platform},
- {"msg_register_application", msg_register_application},
- {"gras_register_platform", gras_register_platform},
- {"gras_register_application", gras_register_application},
- /* gras sub generator method */
- {"gras_set_process_function", gras_add_process_function},
- {"gras_generate", gras_generate},
{NULL, NULL}
};
/* ********************************************************************************* */
-/* module management functions */
+/* module management functions */
/* ********************************************************************************* */
#define LUA_MAX_ARGS_COUNT 10 /* maximum amount of arguments we can get from lua on command line */
-int luaopen_simgrid(lua_State *L); // Fuck gcc: we don't need that prototype
-
/**
- * This function is called automatically by the Lua interpreter when some Lua code requires
- * the "simgrid" module.
- * @param L the Lua state
+ * \brief Opens the simgrid Lua module.
+ *
+ * This function is called automatically by the Lua interpreter when some
+ * Lua code requires the "simgrid" module.
+ *
+ * \param L the Lua state
*/
+
int luaopen_simgrid(lua_State *L)
{
XBT_DEBUG("luaopen_simgrid *****");
- /* Get the command line arguments from the lua interpreter */
- char **argv = malloc(sizeof(char *) * LUA_MAX_ARGS_COUNT);
- int argc = 1;
- 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? */
-
- lua_getglobal(L, "arg");
- /* if arg is a null value, it means we use lua only as a script to init platform
- * else it should be a table and then take arg in consideration
- */
- if (lua_istable(L, -1)) {
- int done = 0;
- while (!done) {
- argc++;
- lua_pushinteger(L, argc - 2);
- lua_gettable(L, -2);
- if (lua_isnil(L, -1)) {
- done = 1;
- } else {
- xbt_assert(lua_isstring(L, -1),
- "argv[%d] got from lua is no string", argc - 1);
- xbt_assert(argc < LUA_MAX_ARGS_COUNT,
- "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",
- __FILE__, LUA_MAX_ARGS_COUNT - 1);
- argv[argc - 1] = (char *) luaL_checkstring(L, -1);
- lua_pop(L, 1);
- XBT_DEBUG("Got command line argument %s from lua", argv[argc - 1]);
- }
- }
- argv[argc--] = NULL;
-
- /* Initialize the MSG core */
- MSG_global_init(&argc, argv);
- XBT_DEBUG("Still %d arguments on command line", argc); // FIXME: update the lua's arg table to reflect the changes from SimGrid
- }
-
- /* Keep the context mechanism informed of our lua world today */
- sglua_maestro_state = L;
-
- /* initialize access to my tables by children Lua states */
- lua_newtable(L);
- lua_setfield(L, LUA_REGISTRYINDEX, "simgrid.maestro_tables");
-
- register_c_functions(L);
+ sglua_register_c_functions(L);
return 1;
}
-/**
- * @brief Returns whether a Lua state is the maestro state.
- * @param L a Lua state
- * @return true if this is maestro
- */
-int sglua_is_maestro(lua_State* L) {
- return L == sglua_maestro_state;
-}
/**
- * @brief Returns the maestro state.
- * @return true the maestro Lua state
+ * \brief Makes the core functions available to the Lua world.
+ * \param L a Lua world
*/
-lua_State* sglua_get_maestro(void) {
- return sglua_maestro_state;
+static void sglua_register_core_functions(lua_State *L)
+{
+ /* register the core C functions to lua */
+ luaL_newlib(L, simgrid_functions); /* simgrid */
+ lua_pushvalue(L, -1); /* simgrid simgrid */
+ lua_setglobal(L, "simgrid"); /* simgrid */
}
/**
- * Makes the appropriate Simgrid functions available to the Lua world.
- * @param L a Lua world
+ * \brief Creates the simgrid module and make it available to Lua.
+ * \param L a Lua world
*/
-void register_c_functions(lua_State *L) {
-
- /* register the core C functions to lua */
- luaL_register(L, "simgrid", simgrid_functions);
-
- /* register the task methods to lua */
- luaL_openlib(L, TASK_MODULE_NAME, task_functions, 0); // create methods table, add it to the globals
- luaL_newmetatable(L, TASK_MODULE_NAME); // create metatable for Task, add it to the Lua registry
- luaL_openlib(L, 0, task_meta, 0); // fill metatable
- lua_pushliteral(L, "__index");
- lua_pushvalue(L, -3); // dup methods table
- lua_rawset(L, -3); // metatable.__index = methods
- lua_pushliteral(L, "__metatable");
- lua_pushvalue(L, -3); // dup methods table
- lua_rawset(L, -3); // hide metatable:metatable.__metatable = methods
- lua_pop(L, 1); // drop metatable
-
- /* register the hosts methods to lua */
- luaL_openlib(L, HOST_MODULE_NAME, host_functions, 0);
- luaL_newmetatable(L, HOST_MODULE_NAME);
- luaL_openlib(L, 0, host_meta, 0);
- lua_pushliteral(L, "__index");
- lua_pushvalue(L, -3);
- lua_rawset(L, -3);
- lua_pushliteral(L, "__metatable");
- lua_pushvalue(L, -3);
- lua_rawset(L, -3);
- lua_pop(L, 1);
-
- /* register the platform methods to lua */
- luaL_openlib(L, PLATF_MODULE_NAME, platf_functions, 0);
- luaL_newmetatable(L, PLATF_MODULE_NAME);
- lua_pop(L, 1);
+static void sglua_register_c_functions(lua_State *L)
+{
+ sglua_register_core_functions(L);
+ sglua_register_host_functions(L);
+ sglua_register_platf_functions(L);
}