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 smx_process_t process;
31 SIMIX_req_process_create(&process, name, code, NULL,
32 gras_os_myname(), argc, argv, properties);
35 /* **************************************************************************
36 * Process constructor/destructor (semi-public interface)
37 * **************************************************************************/
39 void gras_process_init()
42 (gras_hostdata_t *) SIMIX_host_self_get_data();
43 gras_procdata_t *pd = xbt_new0(gras_procdata_t, 1);
44 gras_trp_procdata_t trp_pd;
45 long int pid = PID++; /* make sure the first process gets the first id */
48 /* First process on this host (FIXME: does not work if the SIMIX user contexts are truly parallel) */
49 hd = xbt_new(gras_hostdata_t, 1);
51 hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t), NULL);
52 SIMIX_host_self_set_data((void *) hd);
57 SIMIX_process_self_set_data((void *) pd);
60 trp_pd = (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
63 if (SIMIX_process_self() != NULL) {
64 pd->ppid = gras_os_getpid();
68 trp_pd->msg_selectable_sockets = xbt_queue_new(0, sizeof(gras_socket_t));
70 trp_pd->meas_selectable_sockets =
71 xbt_queue_new(0, sizeof(gras_socket_t));
73 XBT_VERB("Creating process '%s' (%d)", SIMIX_process_self_get_name(),
77 void gras_process_exit()
80 ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
81 gras_socket_t sock_iter;
84 (gras_hostdata_t *) SIMIX_host_self_get_data();
86 (gras_procdata_t *) SIMIX_req_process_get_data(SIMIX_process_self());
88 gras_msg_procdata_t msg_pd =
89 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
90 gras_trp_procdata_t trp_pd =
91 (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
93 xbt_queue_free(&trp_pd->msg_selectable_sockets);
95 xbt_queue_free(&trp_pd->meas_selectable_sockets);
98 xbt_assert(hd, "Run gras_process_init (ie, gras_init)!!");
100 XBT_VERB("GRAS: Finalizing process '%s' (%d)",
101 SIMIX_req_process_get_name(SIMIX_process_self()), gras_os_getpid());
103 if (xbt_dynar_length(msg_pd->msg_queue)) {
107 ("process %d terminated, but %ld messages are still queued. Message list:",
108 gras_os_getpid(), xbt_dynar_length(msg_pd->msg_queue));
109 xbt_dynar_foreach(msg_pd->msg_queue, cpt, msg) {
110 XBT_WARN(" Message %s (%s) from %s@%s:%d", msg.type->name,
111 e_gras_msg_kind_names[msg.kind],
112 gras_socket_peer_proc(msg.expe),
113 gras_socket_peer_name(msg.expe),
114 gras_socket_peer_port(msg.expe));
118 /* if each process has its sockets list, we need to close them when the
120 xbt_dynar_foreach(sockets, cursor, sock_iter) {
121 XBT_VERB("Closing the socket %p left open on exit. Maybe a socket leak?",
123 gras_socket_close(sock_iter);
125 if (!--(hd->refcount)) {
126 xbt_dynar_free(&hd->ports);
129 gras_procdata_exit();
133 /* **************************************************************************
134 * Process data (public interface)
135 * **************************************************************************/
137 gras_procdata_t *gras_procdata_get(void)
139 gras_procdata_t *pd =
140 (gras_procdata_t *) SIMIX_req_process_get_data(SIMIX_process_self());
142 xbt_assert(pd, "Run gras_process_init! (ie, gras_init)");
147 void *gras_libdata_by_name_from_remote(const char *name, smx_process_t p)
149 gras_procdata_t *pd = (gras_procdata_t *) SIMIX_req_process_get_data(p);
152 "process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
153 SIMIX_req_process_get_name(p),
154 SIMIX_req_host_get_name(SIMIX_req_process_get_host(p)));
156 return gras_libdata_by_name_from_procdata(name, pd);
159 /** @brief retrieve the value of a given process property (or NULL if not defined) */
160 const char *gras_process_property_value(const char *name)
162 return xbt_dict_get_or_null(SIMIX_req_process_get_properties
163 (SIMIX_process_self()), name);
166 /** @brief retrieve the process properties dictionnary
167 * @warning it's the original one, not a copy. Don't mess with it
169 xbt_dict_t gras_process_properties(void)
171 return SIMIX_req_process_get_properties(SIMIX_process_self());
174 /* **************************************************************************
175 * OS virtualization function
176 * **************************************************************************/
179 int gras_os_getpid(void)
181 gras_procdata_t *data;
182 data = (gras_procdata_t *) SIMIX_process_self_get_data();
189 /** @brief retrieve the value of a given host property (or NULL if not defined) */
190 const char *gras_os_host_property_value(const char *name)
193 xbt_dict_get_or_null(SIMIX_req_host_get_properties
194 (SIMIX_req_process_get_host(SIMIX_process_self())),
198 /** @brief retrieve the host properties dictionary
199 * @warning it's the original one, not a copy. Don't mess with it
201 xbt_dict_t gras_os_host_properties(void)
204 SIMIX_req_host_get_properties(SIMIX_req_process_get_host
205 (SIMIX_process_self()));
208 /* **************************************************************************
209 * Interface with SIMIX
210 * (these functions are called by the stuff generated by gras_stub_generator)
211 * **************************************************************************/
213 XBT_LOG_EXTERNAL_CATEGORY(gras_trp);
214 XBT_LOG_EXTERNAL_CATEGORY(gras_trp_sg);
216 void gras_global_init(int *argc, char **argv)
218 XBT_LOG_CONNECT(gras_trp_sg, gras_trp);
219 SIMIX_global_init(argc, argv);
222 void gras_create_environment(const char *file)
224 SIMIX_create_environment(file);
227 void gras_function_register(const char *name, xbt_main_func_t code)
229 SIMIX_function_register(name, code);
232 void gras_function_register_default(xbt_main_func_t code)
234 SIMIX_function_register_default(code);
239 /* Clean IO before the run */
247 void gras_launch_application(const char *file)
249 SIMIX_launch_application(file);
252 void gras_load_environment_script(const char *script_file)
255 lua_State *L = lua_open();
258 if (luaL_loadfile(L, script_file) || lua_pcall(L, 0, 0, 0)) {
259 printf("error: %s\n", lua_tostring(L, -1));
264 ("Lua is not available!! to call gras_load_environment_script, lua should be available...");