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 simcall_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()
41 smx_process_t self = SIMIX_process_self();
43 (gras_hostdata_t *) SIMIX_host_self_get_data();
44 gras_procdata_t *pd = xbt_new0(gras_procdata_t, 1);
45 gras_trp_procdata_t trp_pd;
46 long int pid = PID++; /* make sure the first process gets the first id */
49 /* First process on this host (FIXME: does not work if the SIMIX user contexts are truly parallel) */
50 hd = xbt_new(gras_hostdata_t, 1);
52 hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t), NULL);
53 SIMIX_host_self_set_data((void *) hd);
58 SIMIX_process_self_set_data(self, (void *) pd);
61 trp_pd = (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
65 pd->ppid = gras_os_getpid();
69 trp_pd->msg_selectable_sockets = xbt_queue_new(0, sizeof(xbt_socket_t));
71 trp_pd->meas_selectable_sockets =
72 xbt_queue_new(0, sizeof(xbt_socket_t));
74 XBT_VERB("Creating process '%s' (%d)", SIMIX_process_self_get_name(),
78 void gras_process_exit()
81 ((gras_trp_procdata_t) gras_libdata_by_name("gras_trp"))->sockets;
82 xbt_socket_t sock_iter;
85 (gras_hostdata_t *) SIMIX_host_self_get_data();
87 (gras_procdata_t *) simcall_process_get_data(SIMIX_process_self());
89 gras_msg_procdata_t msg_pd =
90 (gras_msg_procdata_t) gras_libdata_by_name("gras_msg");
91 gras_trp_procdata_t trp_pd =
92 (gras_trp_procdata_t) gras_libdata_by_name("gras_trp");
94 xbt_queue_free(&trp_pd->msg_selectable_sockets);
96 xbt_queue_free(&trp_pd->meas_selectable_sockets);
99 xbt_assert(hd, "Run gras_process_init (ie, gras_init)!!");
101 XBT_VERB("GRAS: Finalizing process '%s' (%d)",
102 simcall_process_get_name(SIMIX_process_self()), gras_os_getpid());
104 if (!xbt_dynar_is_empty(msg_pd->msg_queue)) {
108 ("process %d terminated, but %lu messages are still queued. Message list:",
109 gras_os_getpid(), xbt_dynar_length(msg_pd->msg_queue));
110 xbt_dynar_foreach(msg_pd->msg_queue, cpt, msg) {
111 XBT_WARN(" Message %s (%s) from %s@%s:%d", msg.type->name,
112 e_gras_msg_kind_names[msg.kind],
113 xbt_socket_peer_proc(msg.expe),
114 xbt_socket_peer_name(msg.expe),
115 xbt_socket_peer_port(msg.expe));
119 /* if each process has its sockets list, we need to close them when the
121 xbt_dynar_foreach(sockets, cursor, sock_iter) {
122 XBT_VERB("Closing the socket %p left open on exit. Maybe a socket leak?",
124 gras_socket_close(sock_iter);
126 if (!--(hd->refcount)) {
127 xbt_dynar_free(&hd->ports);
130 gras_procdata_exit();
134 /* **************************************************************************
135 * Process data (public interface)
136 * **************************************************************************/
138 gras_procdata_t *gras_procdata_get(void)
140 gras_procdata_t *pd =
141 (gras_procdata_t *) simcall_process_get_data(SIMIX_process_self());
143 xbt_assert(pd, "Run gras_process_init! (ie, gras_init)");
148 void *gras_libdata_by_name_from_remote(const char *name, smx_process_t p)
150 gras_procdata_t *pd = (gras_procdata_t *) simcall_process_get_data(p);
153 "process '%s' on '%s' didn't run gras_process_init! (ie, gras_init)",
154 simcall_process_get_name(p),
155 simcall_host_get_name(simcall_process_get_host(p)));
157 return gras_libdata_by_name_from_procdata(name, pd);
160 /** @brief retrieve the value of a given process property (or NULL if not defined) */
161 const char *gras_process_property_value(const char *name)
163 return xbt_dict_get_or_null(simcall_process_get_properties
164 (SIMIX_process_self()), name);
167 /** @brief retrieve the process properties dictionnary
168 * @warning it's the original one, not a copy. Don't mess with it
170 xbt_dict_t gras_process_properties(void)
172 return simcall_process_get_properties(SIMIX_process_self());
175 /* **************************************************************************
176 * OS virtualization function
177 * **************************************************************************/
180 int gras_os_getpid(void)
182 gras_procdata_t *data;
183 data = (gras_procdata_t *) SIMIX_process_self_get_data(SIMIX_process_self());
190 /** @brief retrieve the value of a given host property (or NULL if not defined) */
191 const char *gras_os_host_property_value(const char *name)
194 xbt_dict_get_or_null(simcall_host_get_properties
195 (simcall_process_get_host(SIMIX_process_self())),
199 /** @brief retrieve the host properties dictionary
200 * @warning it's the original one, not a copy. Don't mess with it
202 xbt_dict_t gras_os_host_properties(void)
205 simcall_host_get_properties(simcall_process_get_host
206 (SIMIX_process_self()));
209 /* **************************************************************************
210 * Interface with SIMIX
211 * (these functions are called by the stuff generated by gras_stub_generator)
212 * **************************************************************************/
214 void gras_global_init(int *argc, char **argv)
216 XBT_LOG_CONNECT(gras_trp_sg, gras_trp);
217 SIMIX_global_init(argc, argv);
220 void gras_create_environment(const char *file)
222 SIMIX_create_environment(file);
225 void gras_function_register(const char *name, xbt_main_func_t code)
227 SIMIX_function_register(name, code);
230 void gras_function_register_default(xbt_main_func_t code)
232 SIMIX_function_register_default(code);
237 /* Clean IO before the run */
245 void gras_launch_application(const char *file)
247 SIMIX_launch_application(file);
250 void gras_load_environment_script(const char *script_file)
253 lua_State *L = lua_open();
256 if (luaL_loadfile(L, script_file) || lua_pcall(L, 0, 0, 0)) {
257 printf("error: %s\n", lua_tostring(L, -1));
262 ("Lua is not available!! to call gras_load_environment_script, lua should be available...");