--- /dev/null
+/* $Id$ */
+
+/* Copyright (c) 2002,2003,2004 Arnaud Legrand. 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"private.h"
+#include"xbt/sysdep.h"
+#include "xbt/error.h"
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(global, msg,
+ "Logging specific to MSG (global)");
+
+MSG_Global_t msg_global = NULL;
+
+/* static void MarkAsFailed(m_task_t t, TBX_HashTable_t failedProcessList); */
+/* static xbt_fifo_t MSG_buildFailedHostList(long double a, long double b); */
+
+/********************************* MSG **************************************/
+
+/** \ingroup msg_simulation
+ * \brief Initialize some MSG internal data.
+ */
+void MSG_global_init(void)
+{
+ if (!msg_global) {
+ msg_global = xbt_new0(s_MSG_Global_t,1);
+
+ surf_init(NULL, NULL); /* Initialize some common structures */
+ msg_global->host = xbt_fifo_new();
+ msg_global->process_to_run = xbt_fifo_new();
+ msg_global->process_list = xbt_fifo_new();
+ msg_global->max_channel = 0;
+ msg_global->current_process = NULL;
+ msg_global->registered_functions = xbt_dict_new();
+ }
+}
+
+/** \ingroup msg_simulation
+ * \brief Defines the verbosity of the simulation.
+ */
+void MSG_set_verbosity(MSG_outputmode_t mode)
+{
+ CRITICAL0("Not implemented yet.");
+}
+
+/** \ingroup m_channel_management
+ * \brief Set the number of channel in the simulation.
+ *
+ * This function has to be called to fix the number of channel in the
+ simulation before creating any host. Indeed, each channel is
+ represented by a different mailbox on each #m_host_t. This
+ function can then be called only once. This function takes only one
+ parameter.
+ * \param number the number of channel in the simulation. It has to be >0
+ */
+MSG_error_t MSG_set_channel_number(int number)
+{
+ MSG_global_init();
+
+ xbt_assert0((msg_global->max_channel == 0), "Channel number already set!");
+
+ msg_global->max_channel = number;
+
+ return MSG_OK;
+}
+
+/** \ingroup m_simulation
+ * \brief Set the sharing policy used for the links
+ *
+ * This function can be called to change the sharing policy used for the links
+ (see \ref paper_tcp). By default the store and forward mechanism is used
+ with a parameter equal to 0.1. This function has to be called before creating
+ any link.
+ * \param mode the sharing policy used for the links: can be either
+ MSG_STORE_AND_FORWARD or MSG_TCP.
+ * \param param a parameter for the sharing policy. It has to be >0. It is
+ currently used only for the MSG_STORE_AND_FORWARD flavor and represents the
+ granularity of the communications (i.e. the packet size).
+ */
+MSG_error_t MSG_set_sharing_policy(MSG_sharing_t mode, long double param)
+{
+ xbt_assert0(0,"This function is now deprecated and useless. Store and forward does not exist anymore. Please stop using it.");
+
+ return MSG_OK;
+}
+
+/** \ingroup m_channel_management
+ * \brief Return the number of channel in the simulation.
+ *
+ * This function has to be called once the number of channel is fixed. I can't
+ figure out a reason why anyone would like to call this function but nevermind.
+ * \return the number of channel in the simulation.
+ */
+int MSG_get_channel_number(void)
+{
+ MSG_global_init();
+
+ xbt_assert0((msg_global->max_channel != 0), "Channel number not set yet!");
+
+ return msg_global->max_channel;
+}
+
+/** \ingroup msg_simulation
+ * \brief Launch the MSG simulation
+ */
+MSG_error_t MSG_main(void)
+{
+ m_process_t process = NULL;
+ int nbprocess,i;
+ long double Before=0.0;
+ long double Now=0.0;
+ double elapsed_time = 0.0;
+
+ /* Clean IO before the run */
+ fflush(stdout);
+ fflush(stderr);
+
+ surf_solve(); /* Takes traces into account. Returns 0.0 */
+ while (xbt_fifo_size(msg_global->process_list)) {
+ while ((process = xbt_fifo_pop(msg_global->process_to_run))) {
+ msg_global->current_process = process;
+ xbt_context_yield(process->simdata->context);
+ msg_global->current_process = NULL;
+ }
+ Before = MSG_getClock();
+ elapsed_time = surf_solve();
+ Now = MSG_getClock();
+
+ if (elapsed_time==0.0)
+ break;
+
+/* /\* Handle Failures *\/ */
+/* { */
+/* xbt_fifo_t failedHostList = MSG_buildFailedHostList(Before,Now); */
+/* m_host_t host = NULL; */
+/* TBX_HashTable_Bucket_t b; */
+/* TBX_HashTable_t failedProcessList = TBX_HashTable_newList(); */
+
+/* while((host=xbt_fifo_pop(failedHostList))) { */
+/* simdata_host_t h_simdata= host->simdata; */
+/* TBX_HashTable_t process_list= h_simdata->process; */
+
+/* h_simdata->state = HOST_DOWN; */
+
+/* for (b=TBX_HashTable_getFirstBucket(process_list);b; */
+/* b=TBX_HashTable_getNextBucket(process_list,b)) { */
+/* m_process_t p = b->content; */
+/* simdata_process_t p_simdata = p->simdata; */
+
+/* if(!TBX_HashTable_isInList(failedProcessList,p,TBX_basicHash)) */
+/* TBX_HashTable_insert(failedProcessList,p,TBX_basicHash); */
+
+/* fprintf(stderr,"MSG: %s(%d) on %s(%d): Has died while ", */
+/* p->name,p_simdata->PID, */
+/* p_simdata->host->name,h_simdata->PID); */
+/* for (i=0; i<msg_global->max_channel; i++) { */
+/* if (h_simdata->sleeping[i] == p_simdata->context) { */
+/* fprintf(stderr,"listening on channel %d.\n",i); */
+/* break; */
+/* } */
+/* } */
+/* if (i==msg_global->max_channel) { */
+/* if(p_simdata->waiting_task) { */
+/* fprintf(stderr,"waiting for %s to finish.\n",p_simdata->waiting_task->name); */
+/* MarkAsFailed(p_simdata->waiting_task,failedProcessList); */
+/* } else { /\* Must be trying to put a task somewhere *\/ */
+/* if(p_simdata->put_host) { */
+/* fprintf(stderr,"trying to send a task on Host %s, channel %d.\n", */
+/* p_simdata->put_host->name, p_simdata->put_channel); */
+/* } else { */
+/* fprintf(stderr,"... WTF! UNKNOWN STATUS. Please report this bug.\n"); */
+/* } */
+/* } */
+/* } */
+/* } */
+/* } */
+/* xbt_fifo_freeFIFO(failedHostList); */
+/* for (b=TBX_HashTable_getFirstBucket(failedProcessList);b; */
+/* b=TBX_HashTable_getNextBucket(failedProcessList,b)) { */
+/* m_process_t p = b->content; */
+/* xbt_fifo_insert(msg_global->process_to_run, p); /\* Brutal... *\/ */
+/* } */
+/* TBX_HashTable_freeList(failedProcessList,NULL); */
+/* } */
+
+
+ {
+ surf_action_t action = NULL;
+ surf_resource_t resource = NULL;
+
+ xbt_dynar_foreach(resource_list, i, resource) {
+ while ((action =
+ xbt_swag_extract(resource->common_public->states.
+ failed_action_set))) {
+/* xbt_fifo_insert(msg_global->process_to_run, process); */
+ }
+ while ((action =
+ xbt_swag_extract(resource->common_public->states.
+ done_action_set))) {
+/* xbt_fifo_insert(msg_global->process_to_run, process); */
+ }
+ }
+ }
+ }
+
+ if ((nbprocess=xbt_fifo_size(msg_global->process_list)) == 0) {
+ fprintf(stderr,
+ "MSG: Congratulations ! Simulation terminated : all process are over\n");
+ return MSG_OK;
+ } else {
+ fprintf(stderr,"MSG: Oops ! Deadlock or code not perfectly clean.\n");
+ fprintf(stderr,"MSG: %d processes are still running, waiting for something.\n",
+ nbprocess);
+ /* List the process and their state */
+ fprintf(stderr,"MSG: <process>(<pid>) on <host>(<pid>): <status>.\n");
+ while ((process=xbt_fifo_pop(msg_global->process_list))) {
+ simdata_process_t p_simdata = (simdata_process_t) process->simdata;
+ simdata_host_t h_simdata=(simdata_host_t)p_simdata->host->simdata;
+
+ fprintf(stderr,"MSG: %s(%d) on %s: ",
+ process->name,p_simdata->PID,
+ p_simdata->host->name);
+ for (i=0; i<msg_global->max_channel; i++) {
+ if (h_simdata->sleeping[i] == process) {
+ fprintf(stderr,"Listening on channel %d.\n",i);
+ break;
+ }
+ }
+ if (i==msg_global->max_channel) {
+ if(p_simdata->waiting_task)
+ fprintf(stderr,"Waiting for %s to finish.\n",p_simdata->waiting_task->name);
+ else { /* Must be trying to put a task somewhere */
+ CRITICAL0("Well! I don't know. I have to fix this part of the code. ;)");
+/* if(p_simdata->put_host) { */
+/* fprintf(stderr,"Trying to send a task on Host %s, channel %d.\n", */
+/* p_simdata->put_host->name, p_simdata->put_channel); */
+/* } else { */
+/* fprintf(stderr,"UNKNOWN STATUS. Please report this bug.\n"); */
+/* } */
+ }
+ }
+ }
+ return MSG_WARNING;
+ }
+}
+
+/* static void MarkAsFailed(m_task_t t, TBX_HashTable_t failedProcessList) */
+/* { */
+/* simdata_task_t simdata = NULL; */
+/* xbt_fifo_item_t i = NULL; */
+/* m_process_t p = NULL; */
+
+/* xbt_assert0((t!=NULL),"Invalid task"); */
+/* simdata = t->simdata; */
+
+/* #define KILL(task) if(task) SG_failTask(task) */
+/* KILL(simdata->compute); */
+/* KILL(simdata->TCP_comm); */
+/* KILL(simdata->s[0]); */
+/* KILL(simdata->s[1]); */
+/* KILL(simdata->s[2]); */
+/* KILL(simdata->s[3]); */
+/* KILL(simdata->sleep); */
+/* #undef KILL */
+/* /\* if(simdata->comm) SG_failEndToEndTransfer(simdata->comm); *\/ */
+
+/* xbt_fifo_foreach(simdata->sleeping,i,p,m_process_t) { */
+/* if(!TBX_HashTable_isInList(failedProcessList,p,TBX_basicHash)) */
+/* TBX_HashTable_insert(failedProcessList,p,TBX_basicHash); */
+/* } */
+
+/* } */
+
+/* static xbt_fifo_t MSG_buildFailedHostList(long double begin, long double end) */
+/* { */
+/* xbt_fifo_t failedHostList = xbt_fifo_new(); */
+/* m_host_t host = NULL; */
+/* xbt_fifo_item_t i; */
+
+/* xbt_fifo_foreach(msg_global->host,i,host,m_host_t) { */
+/* SG_Resource r= ((simdata_host_t) (host->simdata))->host; */
+
+/* if(SG_evaluateFailureTrace(r->failure_trace,begin,end)!=-1.0) */
+/* xbt_fifo_insert(failedHostList,host); */
+/* } */
+
+/* return failedHostList; */
+/* } */
+
+/** \ingroup msg_simulation
+ * \brief Clean the MSG simulation
+ */
+MSG_error_t MSG_clean(void)
+{
+ xbt_fifo_item_t i = NULL;
+ m_host_t h = NULL;
+
+ xbt_fifo_foreach(msg_global->host,i,h,m_host_t) {
+ __MSG_host_destroy(h);
+ }
+ xbt_fifo_free(msg_global->host);
+ xbt_fifo_free(msg_global->process_to_run);
+ xbt_fifo_free(msg_global->process_list);
+ xbt_dict_free(&(msg_global->registered_functions));
+
+ xbt_free(msg_global);
+ surf_finalize();
+
+ return MSG_OK;
+}
+
+
+/** \ingroup msg_easier_life
+ * \brief A clock (in second).
+ */
+long double MSG_getClock(void) {
+ return surf_get_clock();
+}
+
