-/* SimGrid Lua bindings */
-
/* Copyright (c) 2010. The SimGrid Team.
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "simgrid_lua.h"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua, bindings, "Lua Bindings");
-
-lua_State *simgrid_lua_state;
-
-#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 AS_MODULE_NAME "simgrid.AS"
-#define TRACE_MODULE_NAME "simgrid.Trace"
-
-/* ********************************************************************************* */
-/* helper functions */
-/* ********************************************************************************* */
-static void stackDump(const char *msg, lua_State * L)
-{
- char buff[2048];
- char *p = buff;
- int i;
- int top = lua_gettop(L);
-
- fflush(stdout);
- p += sprintf(p, "STACK(top=%d): ", top);
- for (i = 1; i <= top; i++) { /* repeat for each level */
- int t = lua_type(L, i);
- switch (t) {
+/* SimGrid Lua bindings */
- case LUA_TSTRING: /* strings */
- p += sprintf(p, "`%s'", lua_tostring(L, i));
- break;
+#include "simgrid_lua.h"
+#include "lua_state_cloner.h"
+#include "lua_utils.h"
- case LUA_TBOOLEAN: /* booleans */
- p += sprintf(p, lua_toboolean(L, i) ? "true" : "false");
- break;
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(lua, bindings, "Lua Bindings");
- case LUA_TNUMBER: /* numbers */
- p += sprintf(p, "%g", lua_tonumber(L, i));
- break;
+#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"
- case LUA_TTABLE:
- p += sprintf(p, "Table");
- break;
+static lua_State* sglua_maestro_state;
- default: /* other values */
- p += sprintf(p, "???");
-/* if ((ptr = luaL_checkudata(L,i,TASK_MODULE_NAME))) {
- p+=sprintf(p,"task");
- } else {
- p+=printf(p,"%s", lua_typename(L, t));
- }*/
- break;
+static void register_c_functions(lua_State *L);
- }
- p += sprintf(p, " "); /* put a separator */
+/**
+ * \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_INFO("%s%s", msg, buff);
+ 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 userdata on the stack is a task and returns the pointer inside the userdata */
-static m_task_t checkTask(lua_State * L, int index)
+/**
+ * @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)
{
- m_task_t *pi, tk;
+ sglua_stack_dump("check task: ", L);
luaL_checktype(L, index, LUA_TTABLE);
+ /* ... task ... */
lua_getfield(L, index, "__simgrid_task");
- pi = (m_task_t *) luaL_checkudata(L, -1, TASK_MODULE_NAME);
- if (pi == NULL)
- luaL_typerror(L, index, TASK_MODULE_NAME);
- tk = *pi;
- if (!tk)
- luaL_error(L, "null Task");
+ /* ... task ... ctask */
+ m_task_t task = *((m_task_t*) luaL_checkudata(L, -1, TASK_MODULE_NAME));
lua_pop(L, 1);
- return tk;
+ /* ... task ... */
+
+ if (task == NULL) {
+ luaL_error(L, "This task was sent to someone else, you cannot access it anymore");
+ }
+
+ return task;
}
/* ********************************************************************************* */
/* ********************************************************************************* */
/**
- * A task is either something to compute somewhere, or something to exchange between two hosts (or both).
- * It is defined by a computing amount and a message size.
- *
- */
-
-/* * * *
- * * Constructors * *
- * * * */
-/**
- * Construct an new task with the specified processing amount and amount
- * of data needed.
- *
- * @param name Task's name
+ * \brief Creates a new task and leaves it onto the stack.
*
- * @param computeDuration A value of the processing amount (in flop) needed to process the task.
- * If 0, then it cannot be executed with the execute() method.
- * This value has to be >= 0.
- *
- * @param messageSize A value of amount of data (in bytes) needed to transfert this task.
- * If 0, then it cannot be transfered with the get() and put() methods.
- * This value has to be >= 0.
+ * Lua arguments:
+ * - task name (string)
+ * - computation size (integer)
+ * - communication size (integer)
*/
-static int Task_new(lua_State * L)
+static int l_task_new(lua_State* L)
{
- XBT_DEBUG("Task new...");
- const char *name = luaL_checkstring(L, 1);
+ 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); /* create a table, put the userdata on top of it */
- m_task_t *lua_task = (m_task_t *) lua_newuserdata(L, sizeof(m_task_t));
+
+ 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);
- lua_setfield(L, -2, "__simgrid_task"); /* put the userdata as field of the table */
- /* remove the args from the stack */
- lua_remove(L, 1);
- lua_remove(L, 1);
- lua_remove(L, 1);
- return 1;
-}
-
-static int Task_get_name(lua_State * L)
-{
- m_task_t tk = checkTask(L, -1);
- lua_pushstring(L, MSG_task_get_name(tk));
+ /* task ctask */
+ lua_setfield(L, -2, "__simgrid_task");
+ /* task */
return 1;
}
-static int Task_computation_duration(lua_State * L)
+static int l_task_get_name(lua_State* L)
{
- m_task_t tk = checkTask(L, -1);
- lua_pushnumber(L, MSG_task_get_compute_duration(tk));
+ m_task_t task = sglua_checktask(L, 1);
+ lua_pushstring(L, MSG_task_get_name(task));
return 1;
}
-static int Task_execute(lua_State * L)
+static int l_task_computation_duration(lua_State* L)
{
- m_task_t tk = checkTask(L, -1);
- int res = MSG_task_execute(tk);
- lua_pushnumber(L, res);
+ m_task_t task = sglua_checktask(L, 1);
+ lua_pushnumber(L, MSG_task_get_compute_duration(task));
return 1;
}
-static int Task_destroy(lua_State * L)
+static int l_task_execute(lua_State* L)
{
- m_task_t tk = checkTask(L, -1);
- int res = MSG_task_destroy(tk);
+ m_task_t task = sglua_checktask(L, 1);
+ int res = MSG_task_execute(task);
lua_pushnumber(L, res);
return 1;
}
-static int Task_send(lua_State * L)
+static int l_task_send(lua_State* L)
{
- //stackDump("send ",L);
- m_task_t tk = checkTask(L, 1);
- const char *mailbox = luaL_checkstring(L, 2);
- lua_pop(L, 1); // remove the string so that the task is on top of it
- MSG_task_set_data(tk, L); // Copy my stack into the task, so that the receiver can copy the lua task directly
- MSG_error_t res = MSG_task_send(tk, mailbox);
- while (MSG_task_get_data(tk) != NULL) // Don't mess up with my stack: the receiver didn't copy the data yet
- MSG_process_sleep(0); // yield
+ 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)
+ 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_ERROR("MSG_task_send failed : Timeout");
+ XBT_DEBUG("MSG_task_send failed : Timeout");
break;
case MSG_TRANSFER_FAILURE:
- XBT_ERROR("MSG_task_send failed : Transfer Failure");
+ XBT_DEBUG("MSG_task_send failed : Transfer Failure");
break;
case MSG_HOST_FAILURE:
- XBT_ERROR("MSG_task_send failed : 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 Task_recv(lua_State * L)
+static int l_task_recv_with_timeout(lua_State *L)
{
- m_task_t tk = NULL;
- const char *mailbox = luaL_checkstring(L, -1);
- MSG_error_t res = MSG_task_receive(&tk, mailbox);
+ 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);
- lua_State *sender_stack = MSG_task_get_data(tk);
- lua_xmove(sender_stack, L, 1); // copy the data directly from sender's stack
- MSG_task_set_data(tk, NULL);
-
- if (res != MSG_OK)
+ 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_ERROR("MSG_task_receive failed : Timeout");
+ XBT_DEBUG("MSG_task_receive failed : Timeout");
break;
case MSG_TRANSFER_FAILURE:
- XBT_ERROR("MSG_task_receive failed : Transfer Failure");
+ XBT_DEBUG("MSG_task_receive failed : Transfer Failure");
break;
case MSG_HOST_FAILURE:
- XBT_ERROR("MSG_task_receive failed : Host Failure ");
+ XBT_DEBUG("MSG_task_receive failed : Host Failure ");
break;
default:
- XBT_ERROR
- ("MSG_task_receive failed : Unexpected error , please report this bug");
+ XBT_ERROR("MSG_task_receive failed : Unexpected error , please report this bug");
break;
}
-
+ lua_pushnil(L);
+ /* nil */
+ }
+ /* task/nil */
return 1;
}
-static int Task_recv_with_timeout(lua_State * L)
+static int l_task_recv(lua_State * L)
{
- m_task_t tk = NULL;
- const char *mailbox = luaL_checkstring(L, -2);
- int timeout = luaL_checknumber(L, -1);
- MSG_error_t res = MSG_task_receive_with_timeout(&tk, mailbox, timeout);
-
- lua_State *sender_stack = MSG_task_get_data(tk);
- lua_xmove(sender_stack, L, 1); // copy the data directly from sender's stack
- MSG_task_set_data(tk, NULL);
-
- if (res != MSG_OK)
- switch (res) {
- case MSG_TIMEOUT:
- XBT_ERROR("MSG_task_receive failed : Timeout");
- break;
- case MSG_TRANSFER_FAILURE:
- XBT_ERROR("MSG_task_receive failed : Transfer Failure");
- break;
- case MSG_HOST_FAILURE:
- XBT_ERROR("MSG_task_receive failed : Host Failure ");
- break;
- default:
- XBT_ERROR
- ("MSG_task_receive failed : Unexpected error , please report this bug");
- break;
- }
-
- return 1;
+ lua_pushnumber(L, -1.0);
+ return l_task_recv_with_timeout(L);
}
-/**
- * Static Binding for the Splay methods : event.sleep :
- * it use MSG_task_irecv with MSG_comm_wait
- */
-static int Task_splay_irecv(lua_State *L)
-{
- m_task_t task = NULL;
- msg_comm_t comm = NULL; //current communication to receive
- const char *mailbox = luaL_checkstring(L, -2);
- double timeout = luaL_checknumber(L, -1);
- comm = MSG_task_irecv(&task, mailbox);
- MSG_comm_wait(comm, timeout);
- if (MSG_comm_get_status(comm) == MSG_OK)
- {
- lua_State *sender_stack = MSG_task_get_data(task);
- lua_xmove(sender_stack, L, 1); // copy the data directly from sender's stack
- MSG_task_set_data(task, NULL);
- MSG_comm_destroy(comm);
- }
-
- return 1;
-}
-
-static int Task_splay_isend(lua_State *L)
-{
- m_task_t tk = checkTask(L, 1);
- const char *mailbox = luaL_checkstring(L, 2);
- lua_pop(L, 1); // remove the string so that the task is on top of it
- MSG_task_set_data(tk, L); // Copy my stack into the task, so that the receiver can copy the lua task directly
- MSG_task_isend(tk, mailbox);
-
- return 1;
-}
-
-static const luaL_reg Task_methods[] = {
- {"new", Task_new},
- {"name", Task_get_name},
- {"computation_duration", Task_computation_duration},
- {"execute", Task_execute},
- {"destroy", Task_destroy},
- {"send", Task_send},
- {"recv", Task_recv},
- {"recv_timeout",Task_recv_with_timeout},
- {"splay_recv",Task_splay_irecv},
- {"iSend",Task_splay_isend},
- {0, 0}
+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 Task_gc(lua_State * L)
+static int l_task_gc(lua_State* L)
{
- m_task_t tk = checkTask(L, -1);
- if (tk)
- MSG_task_destroy(tk);
+ /* 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);
+ }
return 0;
}
-static int Task_tostring(lua_State * L)
+static int l_task_tostring(lua_State* L)
{
- lua_pushfstring(L, "Task :%p", lua_touserdata(L, 1));
+ m_task_t task = sglua_checktask(L, 1);
+ lua_pushfstring(L, "Task: %p", task);
return 1;
}
-static const luaL_reg Task_meta[] = {
- {"__gc", Task_gc},
- {"__tostring", Task_tostring},
- {0, 0}
+static const luaL_reg task_meta[] = {
+ {"__gc", l_task_gc},
+ {"__tostring", l_task_tostring},
+ {NULL, NULL}
};
/**
* Host
*/
-static m_host_t checkHost(lua_State * L, int index)
+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, -1, HOST_MODULE_NAME);
+ 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;
return ht;
}
-static int Host_get_by_name(lua_State * L)
+static int l_host_get_by_name(lua_State * L)
{
const char *name = luaL_checkstring(L, 1);
XBT_DEBUG("Getting Host from name...");
return 1;
}
-
-static int Host_get_name(lua_State * L)
+static int l_host_get_name(lua_State * L)
{
- m_host_t ht = checkHost(L, -1);
+ m_host_t ht = sglua_checkhost(L, -1);
lua_pushstring(L, MSG_host_get_name(ht));
return 1;
}
-static int Host_number(lua_State * L)
+static int l_host_number(lua_State * L)
{
lua_pushnumber(L, MSG_get_host_number());
return 1;
}
-static int Host_at(lua_State * L)
+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])
}
-static int Host_self(lua_State * L)
+static int l_host_self(lua_State * L)
{
- m_host_t host = MSG_host_self();
- lua_newtable(L);
- 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");
- return 1;
-
+ /* -- */
+ 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 Host_get_property_value(lua_State * L)
+static int l_host_get_property_value(lua_State * L)
{
- m_host_t ht = checkHost(L, -2);
- const char *prop = luaL_checkstring(L, -1);
- lua_pushstring(L,MSG_host_get_property_value(ht,prop));
- return 1;
+ 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 Host_sleep(lua_State *L)
+static int l_host_sleep(lua_State *L)
{
- int time = luaL_checknumber(L, -1);
- MSG_process_sleep(time);
- return 1;
+ int time = luaL_checknumber(L, -1);
+ MSG_process_sleep(time);
+ return 1;
}
-static int Host_destroy(lua_State *L)
+static int l_host_destroy(lua_State *L)
{
- m_host_t ht = checkHost(L, -1);
- __MSG_host_destroy(ht);
- return 1;
+ m_host_t ht = sglua_checkhost(L, -1);
+ __MSG_host_destroy(ht);
+ return 1;
}
/* ********************************************************************************* */
return 0;
}
-/***********************************
- * Tracing
- **********************************/
-static int trace_start(lua_State *L)
-{
-#ifdef HAVE_TRACING
- TRACE_start();
-#endif
- return 1;
-}
-
-static int trace_category(lua_State * L)
-{
-#ifdef HAVE_TRACING
- TRACE_category(luaL_checkstring(L, 1));
-#endif
- return 1;
-}
-static int trace_set_task_category(lua_State *L)
-{
-#ifdef HAVE_TRACING
- TRACE_msg_set_task_category(checkTask(L, -2), luaL_checkstring(L, -1));
-#endif
- return 1;
-}
+// *********** Register Methods ******************************************* //
-static int trace_end(lua_State *L)
-{
-#ifdef HAVE_TRACING
- TRACE_end();
-#endif
- return 1;
-}
-//***********Register Methods *******************************************//
/*
* Host Methods
*/
-static const luaL_reg Host_methods[] = {
- {"getByName", Host_get_by_name},
- {"name", Host_get_name},
- {"number", Host_number},
- {"at", Host_at},
- {"self",Host_self},
- {"getPropValue", Host_get_property_value},
- {"sleep", Host_sleep},
- {"destroy",Host_destroy},
+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
- {"setFunction", console_set_function},
- {"setProperty", console_host_set_property},
- {0, 0}
+ {"set_function", console_set_function},
+ {"set_property", console_host_set_property},
+ {NULL, NULL}
};
-static int Host_gc(lua_State * L)
-{
- m_host_t ht = checkHost(L, -1);
- if (ht)
- ht = NULL;
- return 0;
-}
-
-static int Host_tostring(lua_State * L)
+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", Host_gc},
- {"__tostring", Host_tostring},
+static const luaL_reg host_meta[] = {
+ {"__tostring", l_host_tostring},
{0, 0}
};
/*
* AS Methods
*/
-static const luaL_reg AS_methods[] = {
- {"new", console_add_AS},
- {"addHost",console_add_host},
- {"addLink",console_add_link},
- {"addRoute",console_add_route},
- {0, 0}
+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}
};
-/**
- * Tracing Functions
- */
-static const luaL_reg Trace_methods[] = {
- {"start",trace_start},
- {"category",trace_category},
- {"setTaskCategory",trace_set_task_category},
- {"finish",trace_end},
- {0,0}
-};
/*
* Environment related
*/
-//extern lua_State *simgrid_lua_state;
-
+/**
+ * @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
+ */
static int run_lua_code(int argc, char **argv)
{
XBT_DEBUG("Run lua code %s", argv[0]);
- lua_State *L = lua_newthread(simgrid_lua_state);
- int ref = luaL_ref(simgrid_lua_state, LUA_REGISTRYINDEX); // protect the thread from being garbage collected
+
+ lua_State *L = sglua_clone_maestro();
int res = 1;
- /* Start the co-routine */
+ /* 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
+ /* push arguments onto the stack */
int i;
for (i = 1; i < argc; i++)
lua_pushstring(L, argv[i]);
- // Call the function (in resume)
- int err;
+ /* 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));
res = lua_tonumber(L, -1);
lua_pop(L, 1); /* pop returned value */
}
- // cleanups
- luaL_unref(simgrid_lua_state, LUA_REGISTRYINDEX, ref);
- XBT_DEBUG("Execution of lua code %s is over", (argv ? argv[0] : "(null)"));
+
+ XBT_DEBUG("Execution of Lua code %s is over", (argv ? argv[0] : "(null)"));
+
return res;
}
return 0;
}
-#include "simix/simix.h" //FIXME: KILLME when debugging on simix internals become useless
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);
-
-/*
- xbt_dict_t hosts = SIMIX_host_get_dict();
- smx_host_t host;
- xbt_dict_cursor_t c;
- const char *name;
-
- xbt_dict_foreach(hosts, c, name, host) {
- XBT_DEBUG("We have an host %s", SIMIX_host_get_name(host));
- }
-*/
-
return 0;
}
static int msg_register_platform(lua_State * L)
{
/* Tell Simgrid we dont wanna use its parser */
- surf_parse = console_parse_platform;
+ //surf_parse = console_parse_platform;
surf_parse_reset_callbacks();
- surf_config_models_setup(NULL);
MSG_create_environment(NULL);
return 0;
}
static int sd_register_platform(lua_State * L)
{
- surf_parse = console_parse_platform_wsL07;
+ //surf_parse = console_parse_platform_wsL07;
surf_parse_reset_callbacks();
- surf_config_models_setup(NULL);
SD_create_environment(NULL);
return 0;
}
*/
static int gras_register_platform(lua_State * L)
{
- /* Tell Simgrid we dont wanna use surf parser */
- surf_parse = console_parse_platform;
+ //surf_parse = console_parse_platform;
surf_parse_reset_callbacks();
- surf_config_models_setup(NULL);
gras_create_environment(NULL);
return 0;
}
static int msg_register_application(lua_State * L)
{
MSG_function_register_default(run_lua_code);
- surf_parse = console_parse_application;
+ //surf_parse = console_parse_application;
MSG_launch_application(NULL);
return 0;
}
static int gras_register_application(lua_State * L)
{
gras_function_register_default(run_lua_code);
- surf_parse = console_parse_application;
+ //surf_parse = console_parse_application;
gras_launch_application(NULL);
return 0;
}
-static const luaL_Reg simgrid_funcs[] = {
+static const luaL_Reg simgrid_functions[] = {
{"create_environment", create_environment},
{"launch_application", launch_application},
{"debug", debug},
/* ********************************************************************************* */
#define LUA_MAX_ARGS_COUNT 10 /* maximum amount of arguments we can get from lua on command line */
-#define TEST
-int luaopen_simgrid(lua_State * L); // Fuck gcc: we don't need that prototype
-int luaopen_simgrid(lua_State * L)
+
+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
+ */
+int luaopen_simgrid(lua_State *L)
{
- XBT_DEBUG("Luaopen_Simgrid *****");
+ 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? */
- /* Get the command line arguments from the lua interpreter */
+
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
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);
+
+ 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
+ */
+lua_State* sglua_get_maestro(void) {
+ return sglua_maestro_state;
+}
+
+/**
+ * Makes the appropriate Simgrid functions available to the Lua world.
+ * @param L a Lua world
+ */
+void register_c_functions(lua_State *L) {
+
/* register the core C functions to lua */
- luaL_register(L, "simgrid", simgrid_funcs);
+ luaL_register(L, "simgrid", simgrid_functions);
+
/* register the task methods to lua */
- luaL_openlib(L, TASK_MODULE_NAME, Task_methods, 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
+ 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); //matatable.__index = methods
+ 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
+ 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_methods, 0);
+ luaL_openlib(L, HOST_MODULE_NAME, host_functions, 0);
luaL_newmetatable(L, HOST_MODULE_NAME);
- luaL_openlib(L, 0, Host_meta, 0);
+ luaL_openlib(L, 0, host_meta, 0);
lua_pushliteral(L, "__index");
lua_pushvalue(L, -3);
lua_rawset(L, -3);
lua_rawset(L, -3);
lua_pop(L, 1);
- /* register the links methods to lua */
- luaL_openlib(L, AS_MODULE_NAME, AS_methods, 0);
- luaL_newmetatable(L, AS_MODULE_NAME);
- lua_pop(L, 1);
-
-
-
- /*register the Tracing functions to lua */
- luaL_openlib(L, TRACE_MODULE_NAME, Trace_methods, 0);
- luaL_newmetatable(L, TRACE_MODULE_NAME);
+ /* 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);
-
- /* Keep the context mechanism informed of our lua world today */
- simgrid_lua_state = L;
- return 1;
}
