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Skeleton of virtualization functions
authormquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Tue, 6 Apr 2004 22:07:00 +0000 (22:07 +0000)
committermquinson <mquinson@48e7efb5-ca39-0410-a469-dd3cf9ba447f>
Tue, 6 Apr 2004 22:07:00 +0000 (22:07 +0000)
git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@69 48e7efb5-ca39-0410-a469-dd3cf9ba447f

src/gras/Virtu/rl_process.c [new file with mode: 0644]
src/gras/Virtu/rl_time.c [new file with mode: 0644]
src/gras/Virtu/sg_process.c [new file with mode: 0644]
src/gras/Virtu/sg_time.c [new file with mode: 0644]
src/gras/Virtu/virtu_interface.h [new file with mode: 0644]
src/gras/Virtu/virtu_rl.h [new file with mode: 0644]
src/gras/Virtu/virtu_sg.h [new file with mode: 0644]

diff --git a/src/gras/Virtu/rl_process.c b/src/gras/Virtu/rl_process.c
new file mode 100644 (file)
index 0000000..10066a6
--- /dev/null
@@ -0,0 +1,49 @@
+/* $Id$ */
+
+/* process_rl - GRAS process handling on real life                         */
+
+/* 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_rl.h"
+
+GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(process,GRAS);
+                             
+/* globals */
+static gras_process_data_t *_gras_process_data;
+
+gras_error_t gras_process_init() {
+  //  gras_error_t errcode;
+
+  if (!(_gras_process_data=(gras_process_data_t *)malloc(sizeof(gras_process_data_t))))
+    RAISE_MALLOC;
+
+  WARNING0("Implement message queue");
+  /*
+  TRY(gras_dynar_new(  &(_gras_process_data->msg_queue)  ));
+  TRY(gras_dynar_new(  &(_gras_process_data->cbl_list)  ));
+  */
+
+  _gras_process_data->userdata = NULL;
+  return no_error;
+}
+gras_error_t gras_process_exit() {
+  WARNING0("FIXME: not implemented (=> leaking on exit :)");
+  return no_error;
+}
+
+/* **************************************************************************
+ * Process data
+ * **************************************************************************/
+
+void *gras_userdata_get(void) {
+  return _gras_process_data->userdata;
+}
+
+void *gras_userdata_set(void *ud) {
+  _gras_process_data->userdata = ud;
+  return ud;
+}
diff --git a/src/gras/Virtu/rl_time.c b/src/gras/Virtu/rl_time.c
new file mode 100644 (file)
index 0000000..c65d261
--- /dev/null
@@ -0,0 +1,29 @@
+/* $Id$ */
+
+/* time - time related syscal wrappers                                      */
+
+/* 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 "gras_private.h"
+#include <sys/time.h>   /* gettimeofday() */
+
+double gras_time() {
+  struct timeval tv;
+
+  gettimeofday(&tv, NULL);
+
+  return (double)(tv.tv_sec * 1000000 + tv.tv_usec);
+}
+void gras_sleep(unsigned long sec,unsigned long usec) {
+  sleep(sec);
+  if (usec/1000000) sleep(usec/1000000);
+
+#ifdef HAVE_USLEEP
+  (void)usleep(usec % 1000000);
+#endif /* ! HAVE_USLEEP */
+}
diff --git a/src/gras/Virtu/sg_process.c b/src/gras/Virtu/sg_process.c
new file mode 100644 (file)
index 0000000..243093b
--- /dev/null
@@ -0,0 +1,134 @@
+/* $Id$ */
+
+/* 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;
+}
diff --git a/src/gras/Virtu/sg_time.c b/src/gras/Virtu/sg_time.c
new file mode 100644 (file)
index 0000000..1f50a85
--- /dev/null
@@ -0,0 +1,19 @@
+/* $Id$ */
+
+/* time - time related syscal wrappers                                      */
+
+/* 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"
+
+double gras_time() {
+  return MSG_getClock();
+}
+void gras_sleep(unsigned long sec,unsigned long usec) {
+  MSG_process_sleep((double)sec + ((double)usec)/1000000);
+}
diff --git a/src/gras/Virtu/virtu_interface.h b/src/gras/Virtu/virtu_interface.h
new file mode 100644 (file)
index 0000000..f4fd3f9
--- /dev/null
@@ -0,0 +1,40 @@
+/* $Id$ */
+
+/* virtu[alization] - speciafic parts for each OS and for SG                */
+
+/* module's public interface  exported within GRAS, but not to end user.    */
+
+/* Authors: Martin Quinson                                                  */
+/* Copyright (C) 2004 Martin Quinson.                                       */
+
+/* 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. */
+
+#ifndef GRAS_VIRTU_INTERFACE_H
+#define GRAS_VIRTU_INTERFACE_H
+
+/**
+ * gras_process_data_t:
+ *
+ * Data for each process 
+ */
+typedef struct {
+  /* queue of messages which where received but not wanted in msgWait, and therefore
+     temporarly queued until the next msgHandle */
+  gras_dynar_t *msg_queue; /* elm type: gras_msg_t */
+
+  /* registered callbacks for each message */
+  gras_dynar_t *cbl_list; /* elm type: gras_cblist_t */
+   
+
+  /* The channel we are listening to in SG for formated messages */
+  int chan;
+  /* The channel we are listening to in SG for raw send/recv */
+  int rawChan; 
+
+  /* globals of the process */
+  void *userdata;               
+} gras_process_data_t;
+
+
+#endif  /* GRAS_VIRTU_INTERFACE_H */
diff --git a/src/gras/Virtu/virtu_rl.h b/src/gras/Virtu/virtu_rl.h
new file mode 100644 (file)
index 0000000..e2db0c2
--- /dev/null
@@ -0,0 +1,16 @@
+/* $Id$ */
+
+/* virtu_rl - specific GRAS implementation for real life                    */
+
+/* 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. */
+
+#ifndef VIRTU_RL_H
+#define VIRTU_RL_H
+
+#include "gras_private.h"
+
+#endif /* VIRTU_RL_H */
diff --git a/src/gras/Virtu/virtu_sg.h b/src/gras/Virtu/virtu_sg.h
new file mode 100644 (file)
index 0000000..85303ca
--- /dev/null
@@ -0,0 +1,31 @@
+/* $Id$ */
+
+/* virtu_sg - specific GRAS implementation for 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. */
+
+#ifndef VIRTU_SG_H
+#define VIRTU_SG_H
+
+#include "gras_private.h"
+#include <msg.h> /* SimGrid header */
+
+#define GRAS_MAX_CHANNEL 10
+
+/* Data for each host */
+typedef struct {
+  int proc[GRAS_MAX_CHANNEL]; /* who's connected to each channel (its PID). If =0, then free */
+
+  int portLen;
+  int *port;             /* list of ports used by a server socket */
+  int *port2chan;        /* the channel it points to */
+  int *raw;              /* (boolean) the channel is in raw mode or for formatted messages */
+
+} gras_hostdata_t;
+
+
+#endif /* VIRTU_SG_H */