-/* $Id$ */
-
/* process_sg - GRAS process handling on simulator */
-/* Copyright (c) 2003, 2004 Martin Quinson. All rights reserved. */
+/* 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. */
-#include "gras_modinter.h" /* module initialization interface */
+#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/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);
+
+static long int PID = 1;
+
+
+void gras_agent_spawn(const char *name,
+ xbt_main_func_t code, int argc, char *argv[],
+ xbt_dict_t properties)
+{
-XBT_LOG_EXTERNAL_CATEGORY(process);
-XBT_LOG_DEFAULT_CATEGORY(process);
+ smx_process_t process;
+ simcall_process_create(&process, name, code, NULL,
+ gras_os_myname(), argc, argv, properties);
+}
+
+/* **************************************************************************
+ * Process constructor/destructor (semi-public interface)
+ * **************************************************************************/
-xbt_error_t
-gras_process_init() {
- xbt_error_t errcode;
- gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
- gras_procdata_t *pd=xbt_new(gras_procdata_t,1);
+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;
- gras_sg_portrec_t prraw,pr;
- int i;
-
- if (MSG_process_set_data(MSG_process_self(),(void*)pd) != MSG_OK)
- return unknown_error;
-
- gras_procdata_init();
+ long int pid = PID++; /* make sure the first process gets the first id */
if (!hd) {
- /* First process on this host */
- hd=xbt_new(gras_hostdata_t,1);
- hd->ports = xbt_dynar_new(sizeof(gras_sg_portrec_t),NULL);
+ /* 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++;
+ }
- memset(hd->proc, 0, sizeof(hd->proc[0]) * XBT_MAX_CHANNEL);
+ SIMIX_process_self_set_data(self, (void *) pd);
+ gras_procdata_init();
- if (MSG_host_set_data(MSG_host_self(),(void*)hd) != MSG_OK)
- return unknown_error;
- }
-
- /* take a free channel for this process */
- trp_pd = (gras_trp_procdata_t)gras_libdata_get("gras_trp");
- for (i=0; i<XBT_MAX_CHANNEL && hd->proc[i]; i++);
- if (i == XBT_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()),XBT_MAX_CHANNEL);
-
- trp_pd->chan = i;
- hd->proc[ i ] = MSG_process_self_PID();
-
- /* regiter it to the ports structure */
- pr.port = -1;
- pr.tochan = i;
- pr.raw = 0;
- xbt_dynar_push(hd->ports,&pr);
-
- /* take a free RAW channel for this process */
- for (i=0; i<XBT_MAX_CHANNEL && hd->proc[i]; i++);
- if (i == XBT_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()),XBT_MAX_CHANNEL);
- }
- trp_pd->rawChan = i;
+ 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;
- hd->proc[ i ] = MSG_process_self_PID();
+ trp_pd->msg_selectable_sockets = xbt_queue_new(0, sizeof(xbt_socket_t));
- /* register it to the ports structure */
- prraw.port = -1;
- prraw.tochan = i;
- prraw.raw = 1;
- xbt_dynar_push(hd->ports,&prraw);
+ trp_pd->meas_selectable_sockets =
+ xbt_queue_new(0, sizeof(xbt_socket_t));
- VERB2("Creating process '%s' (%d)",
- MSG_process_get_name(MSG_process_self()),
- MSG_process_self_PID());
- return no_error;
+ XBT_VERB("Creating process '%s' (%d)", SIMIX_process_self_get_name(),
+ gras_os_getpid());
}
-xbt_error_t
-gras_process_exit() {
- gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
- gras_msg_procdata_t msg_pd=(gras_msg_procdata_t)gras_libdata_get("gras_msg");
- gras_trp_procdata_t trp_pd=(gras_trp_procdata_t)gras_libdata_get("gras_trp");
- int myPID=MSG_process_self_PID();
- int cpt;
- gras_sg_portrec_t pr;
+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());
- xbt_assert0(hd,"Run gras_process_init (ie, gras_init)!!");
+ 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");
- INFO2("GRAS: Finalizing process '%s' (%d)",
- MSG_process_get_name(MSG_process_self()),MSG_process_self_PID());
+ xbt_queue_free(&trp_pd->msg_selectable_sockets);
- if (xbt_dynar_length(msg_pd->msg_queue))
- WARN1("process %d terminated, but some messages are still queued",
- MSG_process_self_PID());
+ xbt_queue_free(&trp_pd->meas_selectable_sockets);
- for (cpt=0; cpt< XBT_MAX_CHANNEL; cpt++)
- if (myPID == hd->proc[cpt])
- hd->proc[cpt] = 0;
- xbt_dynar_foreach(hd->ports, cpt, pr) {
- if (pr.port == trp_pd->chan || pr.port == trp_pd->rawChan) {
- xbt_dynar_cursor_rm(hd->ports, &cpt);
+ xbt_assert(hd, "Run gras_process_init (ie, gras_init)!!");
+
+ 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));
}
}
- return no_error;
+ /* 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);
+ }
+ gras_procdata_exit();
+ free(pd);
}
/* **************************************************************************
- * Process data
+ * Process data (public interface)
* **************************************************************************/
-gras_procdata_t *gras_procdata_get(void) {
- gras_procdata_t *pd=
- (gras_procdata_t *)MSG_process_get_data(MSG_process_self());
+gras_procdata_t *gras_procdata_get(void)
+{
+ gras_procdata_t *pd =
+ (gras_procdata_t *) simcall_process_get_data(SIMIX_process_self());
- xbt_assert0(pd,"Run gras_process_init! (ie, gras_init)");
+ xbt_assert(pd, "Run gras_process_init! (ie, gras_init)");
return pd;
}
-const char* xbt_procname(void) {
- const char *res = NULL;
- m_process_t process = MSG_process_self();
- if ((process != NULL) && (process->simdata))
- res = MSG_process_get_name(process);
- if (res)
- return res;
- else
- return "";
+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);
+
+ 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)));
+
+ return gras_libdata_by_name_from_procdata(name, pd);
+}
+
+/** @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 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()));
+}
+
+/* **************************************************************************
+ * Interface with SIMIX
+ * (these functions are called by the stuff generated by gras_stub_generator)
+ * **************************************************************************/
+
+XBT_LOG_EXTERNAL_CATEGORY(gras_trp);
+XBT_LOG_EXTERNAL_CATEGORY(gras_trp_sg);
+
+void gras_global_init(int *argc, char **argv)
+{
+ XBT_LOG_CONNECT(gras_trp_sg, gras_trp);
+ 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);
+}
+
+void gras_main()
+{
+ /* Clean IO before the run */
+ fflush(stdout);
+ fflush(stderr);
+ SIMIX_run();
+
+ return;
+}
+
+void gras_launch_application(const char *file)
+{
+ SIMIX_launch_application(file);
+}
+
+void gras_load_environment_script(const char *script_file)
+{
+#ifdef HAVE_LUA
+ lua_State *L = lua_open();
+ luaL_openlibs(L);
+
+ 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;
}
-int gras_os_getpid(void) {
- m_process_t process = MSG_process_self();
- if ((process != NULL) && (process->simdata))
- return MSG_process_get_PID(MSG_process_self());
- else
- return 0;
+void gras_clean()
+{
+ SIMIX_clean();
}
