-/* 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");
-
-#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"
-
-/* ********************************************************************************* */
-/* 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;
+int luaopen_simgrid(lua_State *L);
+static void register_c_functions(lua_State *L);
+static int run_lua_code(int argc, char **argv);
- }
- p += sprintf(p, " "); /* put a separator */
- }
- INFO2("%s%s", msg, buff);
-}
+/* ********************************************************************************* */
+/* simgrid.task API */
+/* ********************************************************************************* */
-/** @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 in the stack is a valid task and returns it.
+ * \param L a Lua state
+ * \param index an index in the Lua stack
+ * \return the C task corresponding to this Lua task
+ */
+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 ... */
-/* ********************************************************************************* */
-/* wrapper functions */
-/* ********************************************************************************* */
+ if (task == NULL) {
+ luaL_error(L, "This task was sent to someone else, you cannot access it anymore");
+ }
-/**
- * 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.
- *
- */
+ return task;
+}
-/* * * *
- * * 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 L a Lua state
+ * \return number of values returned to Lua
*
- * @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.
+ * - Argument 1 (string): name of the task
+ * - Argument 2 (number): computation size
+ * - Argument 3 (number): communication size
+ * - Return value (task): the task created
*
- * @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.
+ * A Lua task is a regular table with a full userdata inside, and both share
+ * the same metatable. For the regular table, the metatable allows OO-style
+ * writing such as your_task:send(someone).
+ * For the userdata, the metatable is used to check its type.
*/
-static int Task_new(lua_State * L)
+static int l_task_new(lua_State* L)
{
- 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 */
+ luaL_getmetatable(L, TASK_MODULE_NAME);
+ /* task mt */
+ lua_setmetatable(L, -2);
+ /* 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);
+ /* task ctask */
+ lua_setfield(L, -2, "__simgrid_task");
+ /* task */
return 1;
}
-static int Task_get_name(lua_State * L)
+/**
+ * \brief Returns the name of a task.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (task): a task
+ * - Return value (string): name of the task
+ */
+static int l_task_get_name(lua_State* L)
{
- m_task_t tk = checkTask(L, -1);
- lua_pushstring(L, MSG_task_get_name(tk));
+ m_task_t task = sglua_checktask(L, 1);
+ lua_pushstring(L, MSG_task_get_name(task));
return 1;
}
-static int Task_computation_duration(lua_State * L)
+/**
+ * \brief Returns the computation duration of a task.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (task): a task
+ * - Return value (number): computation duration of this task
+ */
+static int l_task_get_computation_duration(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_pushnumber(L, MSG_task_get_compute_duration(task));
return 1;
}
-static int Task_execute(lua_State * L)
+/**
+ * \brief Executes a task.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (task): the task to execute
+ * - Return value (nil or error): none if the task was successfully executed, or an error
+ * string in case of failure, which may be "task canceled" or "host failure"
+ */
+static int l_task_execute(lua_State* L)
{
- m_task_t tk = checkTask(L, -1);
- int res = MSG_task_execute(tk);
- lua_pushnumber(L, res);
- return 1;
-}
+ m_task_t task = sglua_checktask(L, 1);
+ MSG_error_t res = MSG_task_execute(task);
-static int Task_destroy(lua_State * L)
-{
- m_task_t tk = checkTask(L, -1);
- int res = MSG_task_destroy(tk);
- lua_pushnumber(L, res);
- return 1;
-}
+ switch (res) {
+
+ case MSG_OK:
+ return 0;
+
+ case MSG_TASK_CANCELED:
+ lua_pushliteral(L, "task canceled");
+ return 1;
-static int Task_send(lua_State * L)
-{
- //stackDump("send ",L);
- m_task_t tk = checkTask(L, -2);
- const char *mailbox = luaL_checkstring(L, -1);
- 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
-
- if (res != MSG_OK)
- switch (res) {
- case MSG_TIMEOUT:
- ERROR0("MSG_task_send failed : Timeout");
- break;
- case MSG_TRANSFER_FAILURE:
- ERROR0("MSG_task_send failed : Transfer Failure");
- break;
case MSG_HOST_FAILURE:
- ERROR0("MSG_task_send failed : Host Failure ");
- break;
+ lua_pushliteral(L, "host failure");
+ return 1;
+
default:
- ERROR0
- ("MSG_task_send failed : Unexpected error , please report this bug");
- break;
- }
- return 0;
+ xbt_die("Unexpected result of MSG_task_execute(): %d, please report this bug", res);
+ }
}
-static int Task_recv(lua_State * L)
+/**
+ * \brief Sends a task to a mailbox and waits for its completion.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (task): the task to send
+ * - Argument 2 (string or compatible): mailbox name, as a real string or any
+ * type convertible to string (numbers always are)
+ * - Return value (nil or error): none if the communication was successful,
+ * or an error string in case of failure, which may be "timeout",
+ * "host failure" or "transfer failure"
+ */
+static int l_task_send(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 = 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);
+ }
- 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);
+ switch (res) {
+
+ case 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;
+ return 0;
+
+ case MSG_TIMEOUT:
+ XBT_DEBUG("MSG_task_send failed: timeout");
+ lua_settop(L, 0);
+ lua_pushliteral(L, "timeout");
+ return 1;
+
+ case MSG_TRANSFER_FAILURE:
+ XBT_DEBUG("MSG_task_send failed: transfer failure");
+ lua_settop(L, 0);
+ lua_pushliteral(L, "transfer failure");
+ return 1;
+
+ case MSG_HOST_FAILURE:
+ XBT_DEBUG("MSG_task_send failed: host failure");
+ lua_settop(L, 0);
+ lua_pushliteral(L, "host failure");
+ return 1;
+
+ default:
+ xbt_die("Unexpected result of MSG_task_send: %d, please report this bug", res);
+ }
+}
- if (res != MSG_OK)
- switch (res) {
- case MSG_TIMEOUT:
- ERROR0("MSG_task_receive failed : Timeout");
- break;
- case MSG_TRANSFER_FAILURE:
- ERROR0("MSG_task_receive failed : Transfer Failure");
- break;
- case MSG_HOST_FAILURE:
- ERROR0("MSG_task_receive failed : Host Failure ");
- break;
- default:
- ERROR0
- ("MSG_task_receive failed : Unexpected error , please report this bug");
- break;
- }
+/**
+ * \brief Receives a task.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (string or compatible): mailbox name, as a real string or any
+ * type convertible to string (numbers always are)
+ * - Argument 2 (number, optional): timeout (default is no timeout)
+ * - Return value (task or nil+err): the task received, or nil plus an error message if
+ * the communication has failed
+ */
+static int l_task_recv(lua_State* L)
+{
+ m_task_t task = NULL;
+ const char* mailbox = luaL_checkstring(L, 1);
+ int timeout;
+ if (lua_gettop(L) >= 2) {
+ /* mailbox timeout */
+ timeout = luaL_checknumber(L, 2);
+ }
+ else {
+ /* mailbox */
+ timeout = -1;
+ /* no timeout by default */
+ }
+ lua_settop(L, 0);
+ /* -- */
+ MSG_error_t res = MSG_task_receive_with_timeout(&task, mailbox, timeout);
+
+ switch (res) {
+
+ case 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);
+ return 1;
+ }
- return 1;
+ case MSG_TIMEOUT:
+ XBT_DEBUG("MSG_task_send failed: timeout");
+ lua_pushnil(L);
+ lua_pushliteral(L, "timeout");
+ return 2;
+
+ case MSG_TRANSFER_FAILURE:
+ XBT_DEBUG("MSG_task_send failed: transfer failure");
+ lua_pushnil(L);
+ lua_pushliteral(L, "transfer failure");
+ return 2;
+
+ case MSG_HOST_FAILURE:
+ XBT_DEBUG("MSG_task_send failed: host failure");
+ lua_pushnil(L);
+ lua_pushliteral(L, "host failure");
+ return 2;
+
+ default:
+ xbt_die("Unexpected result of MSG_task_recv: %d, please report this bug", res);
+ }
}
-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},
- {0, 0}
+static const luaL_reg task_functions[] = {
+ {"new", l_task_new},
+ {"get_name", l_task_get_name},
+ {"get_computation_duration", l_task_get_computation_duration},
+ {"execute", l_task_execute},
+ {"send", l_task_send},
+ {"recv", l_task_recv},
+ {NULL, NULL}
};
-static int Task_gc(lua_State * L)
+/**
+ * \brief Finalizes the userdata of a task.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (userdata): a C task, possibly NULL if it was sent to another
+ * Lua state
+ */
+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)
+/**
+ * \brief Returns a string representation of a C task.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (userdata): a task
+ * - Return value (string): a string describing this task
+ */
+static int l_task_tostring(lua_State* L)
{
- lua_pushfstring(L, "Task :%p", lua_touserdata(L, 1));
+ m_task_t task = *((m_task_t*) luaL_checkudata(L, 1, TASK_MODULE_NAME));
+ lua_pushfstring(L, "Task: %p", task);
return 1;
}
-static const luaL_reg Task_meta[] = {
- {"__gc", Task_gc},
- {"__tostring", Task_tostring},
- {0, 0}
+/**
+ * \brief Metamethods of both a task table and the userdata inside it.
+ */
+static const luaL_reg task_meta[] = {
+ {"__gc", l_task_gc}, /* will be called only for userdata */
+ {"__tostring", l_task_tostring},
+ {NULL, NULL}
};
+/* ********************************************************************************* */
+/* simgrid.host API */
+/* ********************************************************************************* */
+
/**
- * Host
+ * \brief Ensures that a value in the stack is a host and returns it.
+ * \param L a Lua state
+ * \param index an index in the Lua stack
+ * \return the C host corresponding to this Lua 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)
+/**
+ * \brief Returns a host given its name.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (string): name of a host
+ * - Return value (host): the corresponding host
+ */
+static int l_host_get_by_name(lua_State * L)
{
const char *name = luaL_checkstring(L, 1);
- DEBUG0("Getting Host from name...");
+ 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 failled");
+ 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));
return 1;
}
-
-static int Host_get_name(lua_State * L)
+/**
+ * \brief Returns the name of a host.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (host): a host
+ * - Return value (string): name of this host
+ */
+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)
+/**
+ * \brief Returns the number of existing hosts.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Return value (number): number of hosts
+ */
+static int l_host_number(lua_State * L)
{
lua_pushnumber(L, MSG_get_host_number());
return 1;
}
-static int Host_at(lua_State * L)
+/**
+ * \brief Returns the host given its index.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (number): an index (1 is the first)
+ * - Return value (host): the host at this index
+ */
+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_setmetatable(L, -2);
lua_setfield(L, -2, "__simgrid_host"); /* put the userdata as field of the table */
return 1;
+}
+/**
+ * \brief Returns the host where the current process is located.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Return value (host): the current host
+ */
+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;
}
+/**
+ * \brief Returns the value of a host property.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (host): a host
+ * - Argument 2 (string): name of the property to get
+ * - Return value (string): the value of this property
+ */
+static int l_host_get_property_value(lua_State * L)
+{
+ m_host_t ht = sglua_checkhost(L, 1);
+ const char *prop = luaL_checkstring(L, 2);
+ lua_pushstring(L,MSG_host_get_property_value(ht,prop));
+ return 1;
+}
+
+/**
+ * \brief Makes the current process sleep for a while.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (number): duration of the sleep
+ */
+static int l_host_sleep(lua_State *L)
+{
+ int time = luaL_checknumber(L, 1);
+ MSG_process_sleep(time);
+ return 0;
+}
+
+/**
+ * \brief Destroys a host.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (host): the host to destroy
+ */
+static int l_host_destroy(lua_State *L)
+{
+ m_host_t ht = sglua_checkhost(L, 1);
+ __MSG_host_destroy(ht);
+ return 0;
+}
+
+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}
+};
+
+/**
+ * \brief Returns a string representation of a host.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (userdata): a host
+ * - Return value (string): a string describing this host
+ */
+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[] = {
+ {"__tostring", l_host_tostring},
+ {0, 0}
+};
/* ********************************************************************************* */
/* lua_stub_generator functions */
xbt_realloc(process.argv, (process.argc) * sizeof(char *));
process.argv[(process.argc) - 1] = xbt_strdup(arg);
- DEBUG2("index = %f , arg = %s \n", lua_tonumber(L, -2),
+ 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);
-
return 0;
-
}
-
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);
-
return 0;
}
-//***********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},
- // Bypass XML Methods
- {"new", console_add_host},
- {"setFunction", console_set_function},
- {0, 0}
-};
-
-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)
-{
- lua_pushfstring(L, "Host :%p", lua_touserdata(L, 1));
- return 1;
-}
-
-static const luaL_reg Host_meta[] = {
- {"__gc", Host_gc},
- {"__tostring", Host_tostring},
- {0, 0}
-};
-
-/*
- * AS Methods
- */
-static const luaL_reg AS_methods[] = {
- {"new", console_add_AS},
- {0, 0}
-};
-
+/* ********************************************************************************* */
+/* simgrid.platf API */
+/* ********************************************************************************* */
-/*
- * Link Methods
- */
-static const luaL_reg Link_methods[] = {
- {"new", console_add_link},
- {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}
};
-/*
- * Route Methods
- */
-static const luaL_reg Route_methods[] = {
- {"new", console_add_route},
- {0, 0}
-};
+/* ********************************************************************************* */
+/* simgrid API */
+/* ********************************************************************************* */
-/*
- * Environment related
+/**
+ * \brief Deploys your application.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (string): name of the deployment file to load
*/
-
-extern lua_State *simgrid_lua_state;
-
-static int run_lua_code(int argc, char **argv)
-{
- DEBUG1("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
- int res = 1;
-
- /* Start the co-routine */
- lua_getglobal(L, argv[0]);
- xbt_assert1(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 (in resume)
- xbt_assert2(lua_pcall(L, argc - 1, 1, 0) == 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 */
- }
- // cleanups
- luaL_unref(simgrid_lua_state, LUA_REGISTRYINDEX, ref);
- DEBUG1("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);
return 0;
}
-#include "simix/simix.h" //FIXME: KILLME when debugging on simix internals become useless
+/**
+ * \brief Creates the platform.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (string): name of the platform file to load
+ */
static int create_environment(lua_State * L)
{
const char *file = luaL_checkstring(L, 1);
- DEBUG1("Loading environment file %s", file);
+ XBT_DEBUG("Loading environment file %s", file);
MSG_create_environment(file);
- smx_host_t *hosts = SIMIX_host_get_table();
- int i;
- for (i = 0; i < SIMIX_host_get_number(); i++) {
- DEBUG1("We have an host %s", SIMIX_host_get_name(hosts[i]));
- }
-
return 0;
}
+/**
+ * \brief Prints a log string with debug level.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ *
+ * - Argument 1 (string): the text to print
+ */
static int debug(lua_State * L)
{
const char *str = luaL_checkstring(L, 1);
- DEBUG1("%s", str);
+ XBT_DEBUG("%s", str);
return 0;
}
+/**
+ * \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 int info(lua_State * L)
{
const char *str = luaL_checkstring(L, 1);
- INFO1("%s", str);
+ XBT_INFO("%s", str);
return 0;
}
+/**
+ * \brief Runs your application.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ */
static int run(lua_State * L)
{
MSG_main();
return 0;
}
-static int clean(lua_State * L)
+/**
+ * \brief Cleans the simulation.
+ * \param L a Lua state
+ * \return number of values returned to Lua
+ */
+static int simgrid_gc(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 = console_parse_platform;
+ surf_parse_reset_callbacks();
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();
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();
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},
{"info", info},
{"run", run},
- {"clean", clean},
/* short names */
{"platform", create_environment},
{"application", launch_application},
};
/* ********************************************************************************* */
-/* module management functions */
+/* module management functions */
/* ********************************************************************************* */
-extern const char *xbt_ctx_factory_to_use; /*Hack: let msg load directly the right factory */
-
#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)
+
+/**
+ * \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 *****");
- //xbt_ctx_factory_to_use = "lua";
+ /* 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
if (lua_isnil(L, -1)) {
done = 1;
} else {
- xbt_assert1(lua_isstring(L, -1),
+ xbt_assert(lua_isstring(L, -1),
"argv[%d] got from lua is no string", argc - 1);
- xbt_assert2(argc < LUA_MAX_ARGS_COUNT,
+ 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);
- DEBUG1("Got command line argument %s from lua", argv[argc - 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);
- DEBUG1("Still %d arguments on command line", argc); // FIXME: update the lua's arg table to reflect the changes from SimGrid
+ XBT_DEBUG("Still %d arguments on command line", argc); // FIXME: update the lua's arg table to reflect the changes from SimGrid
}
- /* register the core C functions to lua */
- luaL_register(L, "simgrid", simgrid_funcs);
- /* 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
- lua_pushliteral(L, "__index");
- lua_pushvalue(L, -3); //dup methods table
- lua_rawset(L, -3); //matatable.__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_methods, 0);
+
+ /* 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 the maestro Lua state
+ */
+lua_State* sglua_get_maestro(void) {
+ return sglua_maestro_state;
+}
+
+/**
+ * \brief Registers the task functions into the table simgrid.task.
+ *
+ * Also initialize the metatable of the task userdata type.
+ *
+ * \param L a lua state
+ */
+static void register_task_functions(lua_State* L)
+{
+ /* create a table simgrid.task and fill it with task functions */
+ luaL_openlib(L, TASK_MODULE_NAME, task_functions, 0);
+ /* simgrid.task */
+
+ /* create the metatable for tasks, add it to the Lua registry */
+ luaL_newmetatable(L, TASK_MODULE_NAME);
+ /* simgrid.task mt */
+ /* fill the metatable */
+ luaL_openlib(L, NULL, task_meta, 0);
+ /* simgrid.task mt */
+ lua_pushvalue(L, -2);
+ /* simgrid.task mt simgrid.task */
+ /* metatable.__index = simgrid.task
+ * we put the task functions inside the task itself:
+ * this allows to write task:method(args) for
+ * simgrid.task.method(task, args) */
+ lua_setfield(L, -2, "__index");
+ /* simgrid.task mt */
+ lua_pop(L, 2);
+ /* -- */
+}
+
+/**
+ * \brief Registers the host functions into the table simgrid.host.
+ *
+ * Also initialize the metatable of the host userdata type.
+ *
+ * \param L a lua state
+ */
+static void register_host_functions(lua_State* L)
+{
+ /* create a table simgrid.host and fill it with host functions */
+ luaL_openlib(L, HOST_MODULE_NAME, host_functions, 0);
+ /* simgrid.host */
+
+ /* create the metatable for host, add it to the Lua registry */
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);
+ /* simgrid.host mt */
+ /* fill the metatable */
+ luaL_openlib(L, NULL, host_meta, 0);
+ /* simgrid.host mt */
+ lua_pushvalue(L, -2);
+ /* simgrid.host mt simgrid.host */
+ /* metatable.__index = simgrid.host
+ * we put the host functions inside the host userdata itself:
+ * this allows to write host(args) for
+ * simgrid.host.method(host, args) */
+ // FIXME: cannot work currently, same problem as tasks
+ lua_setfield(L, -2, "__index");
+ /* simgrid.host mt */
+ lua_pop(L, 2);
+ /* -- */
+}
- /* register the links methods to lua */
- luaL_openlib(L, AS_MODULE_NAME, AS_methods, 0);
- luaL_newmetatable(L, AS_MODULE_NAME);
+/**
+ * \brief Registers the platform functions into the table simgrid.platf.
+ * \param L a lua state
+ */
+static void register_platf_functions(lua_State* L)
+{
+ luaL_openlib(L, PLATF_MODULE_NAME, platf_functions, 0);
+ /* simgrid.platf */
lua_pop(L, 1);
+}
- /* register the links methods to lua */
- luaL_openlib(L, LINK_MODULE_NAME, Link_methods, 0);
- luaL_newmetatable(L, LINK_MODULE_NAME);
+/**
+ * \brief Makes the core functions available to the Lua world.
+ * \param L a Lua world
+ */
+static void register_core_functions(lua_State *L)
+{
+ /* register the core C functions to lua */
+ luaL_register(L, "simgrid", simgrid_functions);
+ /* simgrid */
+
+ /* set a finalizer that cleans simgrid, by adding to the simgrid module a
+ * dummy userdata whose __gc metamethod calls MSG_clean() */
+ lua_newuserdata(L, sizeof(void*));
+ /* simgrid udata */
+ lua_newtable(L);
+ /* simgrid udata mt */
+ lua_pushcfunction(L, simgrid_gc);
+ /* simgrid udata mt simgrid_gc */
+ lua_setfield(L, -2, "__gc");
+ /* simgrid udata mt */
+ lua_setmetatable(L, -2);
+ /* simgrid udata */
+ lua_setfield(L, -2, "__simgrid_loaded");
+ /* simgrid */
lua_pop(L, 1);
+ /* -- */
+}
- /*register the routes methods to lua */
- luaL_openlib(L, ROUTE_MODULE_NAME, Route_methods, 0);
- luaL_newmetatable(L, LINK_MODULE_NAME);
- lua_pop(L, 1);
+/**
+ * \brief Creates the simgrid module and make it available to Lua.
+ * \param L a Lua world
+ */
+static void register_c_functions(lua_State *L)
+{
+ register_core_functions(L);
+ register_task_functions(L);
+ register_host_functions(L);
+ register_platf_functions(L);
+}
- /* Keep the context mechanism informed of our lua world today */
- simgrid_lua_state = L;
- return 1;
+/**
+ * \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]);
+
+ /* create a new state, getting globals from maestro */
+ lua_State *L = sglua_clone_maestro();
+ int res = 1;
+
+ /* start the function */
+ lua_getglobal(L, argv[0]);
+ xbt_assert(lua_isfunction(L, -1),
+ "There is no Lua function with name `%s'", 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;
}
