-/* $Id$ */
-
/* process_sg - GRAS process handling on simulator */
-/* Authors: Martin Quinson */
-/* Copyright (C) 2003,2004 da GRAS posse. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 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. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
-#include "Virtu/virtu_sg.h"
+#include "xbt/ex.h"
+#include "xbt/dict.h"
+#include "gras_modinter.h" /* module initialization interface */
+#include "gras/Virtu/virtu_sg.h"
+#include "gras/Msg/msg_interface.h" /* For some checks at simulation end */
+#include "gras/Transport/transport_interface.h" /* For some checks at simulation end */
+#if HAVE_LUA
+#include <lua.h>
+#include <lauxlib.h>
+#include <lualib.h>
+#endif
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(gras_virtu_process);
-GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(process,GRAS);
+static long int PID = 1;
-gras_error_t
-gras_process_init() {
- gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
- gras_process_data_t *pd;
- int i;
-
- if (!(pd=(gras_process_data_t *)malloc(sizeof(gras_process_data_t))))
- RAISE_MALLOC;
- WARNING0("Implement msg queue");
- /*
- pd->grasMsgQueueLen=0;
- pd->grasMsgQueue = NULL;
+void gras_agent_spawn(const char *name,
+ xbt_main_func_t code, int argc, char *argv[],
+ xbt_dict_t properties)
+{
- pd->grasCblListLen = 0;
- pd->grasCblList = NULL;
- */
+ smx_process_t process;
+ simcall_process_create(&process, name, code, NULL,
+ gras_os_myname(), -1.0, argc, argv, properties);
+}
- if (MSG_process_set_data(MSG_process_self(),(void*)pd) != MSG_OK) {
- return unknown_error;
- }
+/* **************************************************************************
+ * Process constructor/destructor (semi-public interface)
+ * **************************************************************************/
+
+void gras_process_init()
+{
+ smx_process_t self = SIMIX_process_self();
+ gras_hostdata_t *hd =
+ (gras_hostdata_t *) SIMIX_host_self_get_data();
+ gras_procdata_t *pd = xbt_new0(gras_procdata_t, 1);
+ gras_trp_procdata_t trp_pd;
+ long int pid = PID++; /* make sure the first process gets the first id */
if (!hd) {
- if (!(hd=(gras_hostdata_t *)malloc(sizeof(gras_hostdata_t))))
- RAISE_MALLOC;
-
- hd->portLen = 0;
- hd->port=NULL;
- hd->port2chan=NULL;
- for (i=0; i<GRAS_MAX_CHANNEL; i++) {
- hd->proc[i]=0;
- }
+ /* First process on this host (FIXME: does not work if the SIMIX user contexts are truly parallel) */
+ hd = xbt_new(gras_hostdata_t, 1);
+ hd->refcount = 1;
+ hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t), NULL);
+ SIMIX_host_self_set_data((void *) hd);
+ } else {
+ hd->refcount++;
+ }
+
+ SIMIX_process_self_set_data(self, (void *) pd);
+ gras_procdata_init();
+
+ trp_pd = (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
+ pd->pid = pid;
+
+ if (self != NULL) {
+ pd->ppid = gras_os_getpid();
+ } else
+ pd->ppid = -1;
+
+ trp_pd->msg_selectable_sockets = xbt_queue_new(0, sizeof(xbt_socket_t));
+
+ trp_pd->meas_selectable_sockets =
+ xbt_queue_new(0, sizeof(xbt_socket_t));
+
+ XBT_VERB("Creating process '%s' (%d)", SIMIX_process_self_get_name(),
+ gras_os_getpid());
+}
+
+void gras_process_exit()
+{
+ xbt_dynar_t sockets =
+ ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
+ xbt_socket_t sock_iter;
+ unsigned int cursor;
+ gras_hostdata_t *hd =
+ (gras_hostdata_t *) SIMIX_host_self_get_data();
+ gras_procdata_t *pd =
+ (gras_procdata_t *) simcall_process_get_data(SIMIX_process_self());
+
+ gras_msg_procdata_t msg_pd =
+ (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
+ gras_trp_procdata_t trp_pd =
+ (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
+
+ xbt_queue_free(&trp_pd->msg_selectable_sockets);
+
+ xbt_queue_free(&trp_pd->meas_selectable_sockets);
+
+
+ xbt_assert(hd, "Run gras_process_init (ie, gras_init)!!");
- if (MSG_host_set_data(MSG_host_self(),(void*)hd) != MSG_OK) {
- return unknown_error;
+ XBT_VERB("GRAS: Finalizing process '%s' (%d)",
+ simcall_process_get_name(SIMIX_process_self()), gras_os_getpid());
+
+ if (!xbt_dynar_is_empty(msg_pd->msg_queue)) {
+ unsigned int cpt;
+ s_gras_msg_t msg;
+ XBT_WARN
+ ("process %d terminated, but %lu messages are still queued. Message list:",
+ gras_os_getpid(), xbt_dynar_length(msg_pd->msg_queue));
+ xbt_dynar_foreach(msg_pd->msg_queue, cpt, msg) {
+ XBT_WARN(" Message %s (%s) from %s@%s:%d", msg.type->name,
+ e_gras_msg_kind_names[msg.kind],
+ xbt_socket_peer_proc(msg.expe),
+ xbt_socket_peer_name(msg.expe),
+ xbt_socket_peer_port(msg.expe));
}
}
-
- /* take a free channel for this process */
- for (i=0; i<GRAS_MAX_CHANNEL && hd->proc[i]; i++);
- if (i == GRAS_MAX_CHANNEL)
- RAISE2(system_error,
- "GRAS: Can't add a new process on %s, because all channel are already in use. Please increase MAX CHANNEL (which is %d for now) and recompile GRAS\n.",
- MSG_host_get_name(MSG_host_self()),GRAS_MAX_CHANNEL);
-
- pd->chan = i;
- hd->proc[ i ] = MSG_process_self_PID();
-
- /* take a free RAW channel for this process */
- for (i=0; i<GRAS_MAX_CHANNEL && hd->proc[i]; i++);
- if (i == GRAS_MAX_CHANNEL) {
- RAISE2(system_error,
- "GRAS: Can't add a new process on %s, because all channel are already in use. Please increase MAX CHANNEL (which is %d for now) and recompile GRAS\n.",
- MSG_host_get_name(MSG_host_self()),GRAS_MAX_CHANNEL);
+
+ /* if each process has its sockets list, we need to close them when the
+ process finish */
+ xbt_dynar_foreach(sockets, cursor, sock_iter) {
+ XBT_VERB("Closing the socket %p left open on exit. Maybe a socket leak?",
+ sock_iter);
+ gras_socket_close(sock_iter);
+ }
+ if (!--(hd->refcount)) {
+ xbt_dynar_free(&hd->ports);
+ free(hd);
}
- pd->rawChan = i;
- hd->proc[ i ] = MSG_process_self_PID();
+ gras_procdata_exit();
+ free(pd);
+}
+
+/* **************************************************************************
+ * Process data (public interface)
+ * **************************************************************************/
- VERB2("Creating process '%s' (%d)",
- MSG_process_get_name(MSG_process_self()),
- MSG_process_self_PID());
- return no_error;
+gras_procdata_t *gras_procdata_get(void)
+{
+ gras_procdata_t *pd =
+ (gras_procdata_t *) simcall_process_get_data(SIMIX_process_self());
+
+ xbt_assert(pd, "Run gras_process_init! (ie, gras_init)");
+
+ return pd;
}
-gras_error_t
-gras_process_exit() {
- gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
- gras_process_data_t *pd=(gras_process_data_t *)MSG_process_get_data(MSG_process_self());
- int myPID=MSG_process_self_PID();
- int i;
+void *gras_libdata_by_name_from_remote(const char *name, smx_process_t p)
+{
+ gras_procdata_t *pd = (gras_procdata_t *) simcall_process_get_data(p);
- gras_assert0(hd && pd,"Run gras_process_init!!\n");
+ xbt_assert(pd,
+ "process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
+ simcall_process_get_name(p),
+ simcall_host_get_name(simcall_process_get_host(p)));
- INFO2("GRAS: Finalizing process '%s' (%d)",
- MSG_process_get_name(MSG_process_self()),MSG_process_self_PID());
+ return gras_libdata_by_name_from_procdata(name, pd);
+}
- WARNING0("Implement msg queue");
- /*
- if (pd->grasMsgQueueLen) {
- fprintf(stderr,"GRAS: Warning: process %d terminated, but some queued messages where not handled\n",MSG_process_self_PID());
- }
- */
-
- for (i=0; i< GRAS_MAX_CHANNEL; i++)
- if (myPID == hd->proc[i])
- hd->proc[i] = 0;
-
- for (i=0; i<hd->portLen; i++) {
- if (hd->port2chan[ i ] == pd->chan) {
- memmove(&(hd->port[i]), &(hd->port[i+1]), (hd->portLen -i -1) * sizeof(int));
- memmove(&(hd->port2chan[i]), &(hd->port2chan[i+1]), (hd->portLen -i -1) * sizeof(int));
- hd->portLen--;
- i--; /* counter the effect of the i++ at the end of the iteration */
- }
- }
+/** @brief retrieve the value of a given process property (or NULL if not defined) */
+const char *gras_process_property_value(const char *name)
+{
+ return xbt_dict_get_or_null(simcall_process_get_properties
+ (SIMIX_process_self()), name);
+}
+
+/** @brief retrieve the process properties dictionnary
+ * @warning it's the original one, not a copy. Don't mess with it
+ */
+xbt_dict_t gras_process_properties(void)
+{
+ return simcall_process_get_properties(SIMIX_process_self());
+}
+
+/* **************************************************************************
+ * OS virtualization function
+ * **************************************************************************/
+
+
+int gras_os_getpid(void)
+{
+ gras_procdata_t *data;
+ data = (gras_procdata_t *) SIMIX_process_self_get_data(SIMIX_process_self());
+ if (data != NULL)
+ return data->pid;
- return no_error;
+ return 0;
+}
+
+/** @brief retrieve the value of a given host property (or NULL if not defined) */
+const char *gras_os_host_property_value(const char *name)
+{
+ return
+ xbt_dict_get_or_null(simcall_host_get_properties
+ (simcall_process_get_host(SIMIX_process_self())),
+ name);
+}
+
+/** @brief retrieve the host properties dictionary
+ * @warning it's the original one, not a copy. Don't mess with it
+ */
+xbt_dict_t gras_os_host_properties(void)
+{
+ return
+ simcall_host_get_properties(simcall_process_get_host
+ (SIMIX_process_self()));
}
/* **************************************************************************
- * Process data
+ * Interface with SIMIX
+ * (these functions are called by the stuff generated by gras_stub_generator)
* **************************************************************************/
-void *gras_userdata_get(void) {
- gras_process_data_t *pd=(gras_process_data_t *)MSG_process_get_data(MSG_process_self());
+void gras_global_init(int *argc, char **argv)
+{
+ SIMIX_global_init(argc, argv);
+}
+
+void gras_create_environment(const char *file)
+{
+ SIMIX_create_environment(file);
+}
+
+void gras_function_register(const char *name, xbt_main_func_t code)
+{
+ SIMIX_function_register(name, code);
+}
+
+void gras_function_register_default(xbt_main_func_t code)
+{
+ SIMIX_function_register_default(code);
+}
- gras_assert0(pd,"Run gras_process_init!");
+void gras_main()
+{
+ /* Clean IO before the run */
+ fflush(stdout);
+ fflush(stderr);
+ SIMIX_run();
- return pd->userdata;
+ return;
}
-void *gras_userdata_set(void *ud) {
- gras_process_data_t *pd=(gras_process_data_t *)MSG_process_get_data(MSG_process_self());
+void gras_launch_application(const char *file)
+{
+ SIMIX_launch_application(file);
+}
- gras_assert0(pd,"Run gras_process_init!");
+void gras_load_environment_script(const char *script_file)
+{
+#ifdef HAVE_LUA
+ lua_State *L = lua_open();
+ luaL_openlibs(L);
- pd->userdata = ud;
+ if (luaL_loadfile(L, script_file) || lua_pcall(L, 0, 0, 0)) {
+ printf("error: %s\n", lua_tostring(L, -1));
+ return;
+ }
+#else
+ xbt_die
+ ("Lua is not available!! to call gras_load_environment_script, lua should be available...");
+#endif
+ return;
+}
- return pd->userdata;
+void gras_clean()
+{
+ SIMIX_clean();
}