+/* $Id$ */
+
+/* process_sg - GRAS process handling on simulator */
+
+/* Authors: Martin Quinson */
+/* Copyright (C) 2003,2004 da GRAS posse. */
+
+/* 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 "Virtu/virtu_sg.h"
+
+GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(process,GRAS);
+
+gras_error_t
+gras_process_init() {
+ gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
+ gras_process_data_t *pd;
+ int i;
+
+ if (!(pd=(gras_process_data_t *)malloc(sizeof(gras_process_data_t))))
+ RAISE_MALLOC;
+
+ WARNING0("Implement msg queue");
+ /*
+ pd->grasMsgQueueLen=0;
+ pd->grasMsgQueue = NULL;
+
+ pd->grasCblListLen = 0;
+ pd->grasCblList = NULL;
+ */
+
+ if (MSG_process_set_data(MSG_process_self(),(void*)pd) != MSG_OK) {
+ return unknown_error;
+ }
+
+ if (!hd) {
+ if (!(hd=(gras_hostdata_t *)malloc(sizeof(gras_hostdata_t))))
+ RAISE_MALLOC;
+
+ hd->portLen = 0;
+ hd->port=NULL;
+ hd->port2chan=NULL;
+ for (i=0; i<GRAS_MAX_CHANNEL; i++) {
+ hd->proc[i]=0;
+ }
+
+ if (MSG_host_set_data(MSG_host_self(),(void*)hd) != MSG_OK) {
+ return unknown_error;
+ }
+ }
+
+ /* take a free channel for this process */
+ for (i=0; i<GRAS_MAX_CHANNEL && hd->proc[i]; i++);
+ if (i == GRAS_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()),GRAS_MAX_CHANNEL);
+
+ pd->chan = i;
+ hd->proc[ i ] = MSG_process_self_PID();
+
+ /* take a free RAW channel for this process */
+ for (i=0; i<GRAS_MAX_CHANNEL && hd->proc[i]; i++);
+ if (i == GRAS_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()),GRAS_MAX_CHANNEL);
+ }
+ pd->rawChan = i;
+ hd->proc[ i ] = MSG_process_self_PID();
+
+ VERB2("Creating process '%s' (%d)",
+ MSG_process_get_name(MSG_process_self()),
+ MSG_process_self_PID());
+ return no_error;
+}
+
+gras_error_t
+gras_process_exit() {
+ gras_hostdata_t *hd=(gras_hostdata_t *)MSG_host_get_data(MSG_host_self());
+ gras_process_data_t *pd=(gras_process_data_t *)MSG_process_get_data(MSG_process_self());
+ int myPID=MSG_process_self_PID();
+ int i;
+
+ gras_assert0(hd && pd,"Run gras_process_init!!\n");
+
+ INFO2("GRAS: Finalizing process '%s' (%d)",
+ MSG_process_get_name(MSG_process_self()),MSG_process_self_PID());
+
+ WARNING0("Implement msg queue");
+ /*
+ if (pd->grasMsgQueueLen) {
+ fprintf(stderr,"GRAS: Warning: process %d terminated, but some queued messages where not handled\n",MSG_process_self_PID());
+ }
+ */
+
+ for (i=0; i< GRAS_MAX_CHANNEL; i++)
+ if (myPID == hd->proc[i])
+ hd->proc[i] = 0;
+
+ for (i=0; i<hd->portLen; i++) {
+ if (hd->port2chan[ i ] == pd->chan) {
+ memmove(&(hd->port[i]), &(hd->port[i+1]), (hd->portLen -i -1) * sizeof(int));
+ memmove(&(hd->port2chan[i]), &(hd->port2chan[i+1]), (hd->portLen -i -1) * sizeof(int));
+ hd->portLen--;
+ i--; /* counter the effect of the i++ at the end of the iteration */
+ }
+ }
+
+ return no_error;
+}
+
+/* **************************************************************************
+ * Process data
+ * **************************************************************************/
+
+void *gras_userdata_get(void) {
+ gras_process_data_t *pd=(gras_process_data_t *)MSG_process_get_data(MSG_process_self());
+
+ gras_assert0(pd,"Run gras_process_init!");
+
+ return pd->userdata;
+}
+
+void *gras_userdata_set(void *ud) {
+ gras_process_data_t *pd=(gras_process_data_t *)MSG_process_get_data(MSG_process_self());
+
+ gras_assert0(pd,"Run gras_process_init!");
+
+ pd->userdata = ud;
+
+ return pd->userdata;
+}