1 /* process_sg - GRAS process handling on simulator */
3 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
4 * All rights reserved. */
6 /* This program is free software; you can redistribute it and/or modify it
7 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "gras_modinter.h" /* module initialization interface */
12 #include "gras/Virtu/virtu_sg.h"
13 #include "gras/Msg/msg_interface.h" /* For some checks at simulation end */
14 #include "gras/Transport/transport_interface.h" /* For some checks at simulation end */
20 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(gras_virtu_process);
22 static long int PID = 1;
25 void gras_agent_spawn(const char *name,
26 xbt_main_func_t code, int argc, char *argv[],
27 xbt_dict_t properties)
30 SIMIX_req_process_create(name, code, NULL,
31 gras_os_myname(), argc, argv, properties);
34 /* **************************************************************************
35 * Process constructor/destructor (semi-public interface)
36 * **************************************************************************/
38 void gras_process_init()
41 (gras_hostdata_t *) SIMIX_host_self_get_data();
42 gras_procdata_t *pd = xbt_new0(gras_procdata_t, 1);
43 gras_trp_procdata_t trp_pd;
44 long int pid = PID++; /* make sure the first process gets the first id */
47 /* First process on this host (FIXME: does not work if the SIMIX user contexts are truly parallel) */
48 hd = xbt_new(gras_hostdata_t, 1);
50 hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t), NULL);
51 SIMIX_host_self_set_data((void *) hd);
56 SIMIX_process_self_set_data((void *) pd);
59 trp_pd = (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
62 if (SIMIX_process_self() != NULL) {
63 pd->ppid = gras_os_getpid();
67 trp_pd->msg_selectable_sockets = xbt_queue_new(0, sizeof(gras_socket_t));
69 trp_pd->meas_selectable_sockets =
70 xbt_queue_new(0, sizeof(gras_socket_t));
72 VERB2("Creating process '%s' (%d)", SIMIX_process_self_get_name(),
76 void gras_process_exit()
79 ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
80 gras_socket_t sock_iter;
83 (gras_hostdata_t *) SIMIX_host_self_get_data();
85 (gras_procdata_t *) SIMIX_req_process_get_data(SIMIX_process_self());
87 gras_msg_procdata_t msg_pd =
88 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
89 gras_trp_procdata_t trp_pd =
90 (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
92 xbt_queue_free(&trp_pd->msg_selectable_sockets);
94 xbt_queue_free(&trp_pd->meas_selectable_sockets);
97 xbt_assert0(hd, "Run gras_process_init (ie, gras_init)!!");
99 VERB2("GRAS: Finalizing process '%s' (%d)",
100 SIMIX_req_process_get_name(SIMIX_process_self()), gras_os_getpid());
102 if (xbt_dynar_length(msg_pd->msg_queue)) {
106 ("process %d terminated, but %ld messages are still queued. Message list:",
107 gras_os_getpid(), xbt_dynar_length(msg_pd->msg_queue));
108 xbt_dynar_foreach(msg_pd->msg_queue, cpt, msg) {
109 WARN5(" Message %s (%s) from %s@%s:%d", msg.type->name,
110 e_gras_msg_kind_names[msg.kind],
111 gras_socket_peer_proc(msg.expe),
112 gras_socket_peer_name(msg.expe),
113 gras_socket_peer_port(msg.expe));
117 /* if each process has its sockets list, we need to close them when the
119 xbt_dynar_foreach(sockets, cursor, sock_iter) {
120 VERB1("Closing the socket %p left open on exit. Maybe a socket leak?",
122 gras_socket_close(sock_iter);
124 if (!--(hd->refcount)) {
125 xbt_dynar_free(&hd->ports);
128 gras_procdata_exit();
132 /* **************************************************************************
133 * Process data (public interface)
134 * **************************************************************************/
136 gras_procdata_t *gras_procdata_get(void)
138 gras_procdata_t *pd =
139 (gras_procdata_t *) SIMIX_req_process_get_data(SIMIX_process_self());
141 xbt_assert0(pd, "Run gras_process_init! (ie, gras_init)");
146 void *gras_libdata_by_name_from_remote(const char *name, smx_process_t p)
148 gras_procdata_t *pd = (gras_procdata_t *) SIMIX_req_process_get_data(p);
151 "process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
152 SIMIX_req_process_get_name(p),
153 SIMIX_req_host_get_name(SIMIX_req_process_get_host(p)));
155 return gras_libdata_by_name_from_procdata(name, pd);
158 /** @brief retrieve the value of a given process property (or NULL if not defined) */
159 const char *gras_process_property_value(const char *name)
161 return xbt_dict_get_or_null(SIMIX_req_process_get_properties
162 (SIMIX_process_self()), name);
165 /** @brief retrieve the process properties dictionnary
166 * @warning it's the original one, not a copy. Don't mess with it
168 xbt_dict_t gras_process_properties(void)
170 return SIMIX_req_process_get_properties(SIMIX_process_self());
173 /* **************************************************************************
174 * OS virtualization function
175 * **************************************************************************/
178 int gras_os_getpid(void)
180 gras_procdata_t *data;
181 data = (gras_procdata_t *) SIMIX_process_self_get_data();
188 /** @brief retrieve the value of a given host property (or NULL if not defined) */
189 const char *gras_os_host_property_value(const char *name)
192 xbt_dict_get_or_null(SIMIX_req_host_get_properties
193 (SIMIX_req_process_get_host(SIMIX_process_self())),
197 /** @brief retrieve the host properties dictionnary
198 * @warning it's the original one, not a copy. Don't mess with it
200 xbt_dict_t gras_os_host_properties(void)
203 SIMIX_req_host_get_properties(SIMIX_req_process_get_host
204 (SIMIX_process_self()));
207 /* **************************************************************************
208 * Interface with SIMIX
209 * (these functions are called by the stuff generated by gras_stub_generator)
210 * **************************************************************************/
212 XBT_LOG_EXTERNAL_CATEGORY(gras_trp);
213 XBT_LOG_EXTERNAL_CATEGORY(gras_trp_sg);
215 void gras_global_init(int *argc, char **argv)
217 XBT_LOG_CONNECT(gras_trp_sg, gras_trp);
218 SIMIX_global_init(argc, argv);
221 void gras_create_environment(const char *file)
223 SIMIX_create_environment(file);
226 void gras_function_register(const char *name, xbt_main_func_t code)
228 SIMIX_function_register(name, code);
231 void gras_function_register_default(xbt_main_func_t code)
233 SIMIX_function_register_default(code);
238 /* Clean IO before the run */
246 void gras_launch_application(const char *file)
248 SIMIX_launch_application(file);
251 void gras_load_environment_script(const char *script_file)
254 lua_State *L = lua_open();
257 if (luaL_loadfile(L, script_file) || lua_pcall(L, 0, 0, 0)) {
258 printf("error: %s\n", lua_tostring(L, -1));
263 ("Lua is not available!! to call gras_load_environment_script, lua should be available...");