X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ad452c358d2b00bbabcd8f10e54a36b3c56985de..7d9c844f205d622335b2e0895c9f37483fa1fd89:/src/msg/m_process.c
diff --git a/src/msg/m_process.c b/src/msg/m_process.c
index e8390ba512..4d6c45bb13 100644
--- a/src/msg/m_process.c
+++ b/src/msg/m_process.c
@@ -5,18 +5,29 @@
/* 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"
+#include "private.h"
+#include "xbt/sysdep.h"
+#include "xbt/log.h"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(m_process, msg,
"Logging specific to MSG (process)");
+/** \defgroup m_process_management Management Functions of Agents
+ * \brief This section describes the agent structure of MSG
+ * (#m_process_t) and the functions for managing it.
+ *
+ * We need to simulate many independent scheduling decisions, so
+ * the concept of process is at the heart of the
+ * simulator. A process may be defined as a code, with
+ * some private data, executing in a location.
+ * \see m_process_t
+ */
+
/******************************** Process ************************************/
/** \ingroup m_process_management
* \brief Creates and runs a new #m_process_t.
*
* Does exactly the same as #MSG_process_create_with_arguments but without
- providing standard arguments (\a argc, \a argv).
+ providing standard arguments (\a argc, \a argv, \a start_time, \a kill_time).
* \sa MSG_process_create_with_arguments
*/
m_process_t MSG_process_create(const char *name,
@@ -29,14 +40,20 @@ m_process_t MSG_process_create(const char *name,
static void MSG_process_cleanup(void *arg)
{
+ while(((m_process_t)arg)->simdata->paje_state) {
+ PAJE_PROCESS_POP_STATE((m_process_t)arg);
+ }
+
PAJE_PROCESS_FREE(arg);
xbt_fifo_remove(msg_global->process_list, arg);
xbt_fifo_remove(msg_global->process_to_run, arg);
xbt_fifo_remove(((m_process_t) arg)->simdata->host->simdata->process_list, arg);
- xbt_free(((m_process_t) arg)->name);
- xbt_free(((m_process_t) arg)->simdata);
- xbt_free(arg);
+ free(((m_process_t) arg)->name);
+ ((m_process_t) arg)->name = NULL;
+ free(((m_process_t) arg)->simdata);
+ ((m_process_t) arg)->simdata = NULL;
+ free(arg);
}
/** \ingroup m_process_management
@@ -54,7 +71,7 @@ static void MSG_process_cleanup(void *arg)
name contains the word get), in \ref m_task_management (to create
or destroy some #m_task_t for example) and in \ref
msg_gos_functions (to handle file transfers and task processing).
- * \param data a pointer to any data may want to attach to the new
+ * \param data a pointer to any data one may want to attach to the new
object. It is for user-level information and can be NULL. It can
be retrieved with the function \ref MSG_process_get_data.
* \param host the location where the new agent is executed.
@@ -121,6 +138,8 @@ void MSG_process_kill(m_process_t process)
int i;
simdata_process_t p_simdata = process->simdata;
simdata_host_t h_simdata= p_simdata->host->simdata;
+ int _cursor;
+ m_process_t proc = NULL;
/* fprintf(stderr,"Killing %s(%d) on %s.\n",process->name, */
/* p_simdata->PID,p_simdata->host->name); */
@@ -133,19 +152,30 @@ void MSG_process_kill(m_process_t process)
}
if (i==msg_global->max_channel) {
if(p_simdata->waiting_task) {
+ xbt_dynar_foreach(p_simdata->waiting_task->simdata->sleeping,_cursor,proc) {
+ if(proc==process)
+ xbt_dynar_remove_at(p_simdata->waiting_task->simdata->sleeping,_cursor,&proc);
+ }
if(p_simdata->waiting_task->simdata->compute)
surf_workstation_resource->common_public->
action_free(p_simdata->waiting_task->simdata->compute);
- else if (p_simdata->waiting_task->simdata->comm)
+ else if (p_simdata->waiting_task->simdata->comm) {
surf_workstation_resource->common_public->
action_change_state(p_simdata->waiting_task->simdata->comm,SURF_ACTION_FAILED);
- else
- fprintf(stderr,"UNKNOWN STATUS. Please report this bug.\n");
+ surf_workstation_resource->common_public->
+ action_free(p_simdata->waiting_task->simdata->comm);
+ } else
+ CRITICAL0("UNKNOWN STATUS. Please report this bug.");
} else { /* Must be trying to put a task somewhere */
- fprintf(stderr,"UNKNOWN STATUS. Please report this bug.\n");
+ if(process==MSG_process_self()) {
+ return;
+ } else {
+ CRITICAL0("UNKNOWN STATUS. Please report this bug.");
+ }
}
}
+ xbt_fifo_remove(msg_global->process_to_run,process);
xbt_fifo_remove(msg_global->process_list,process);
xbt_context_free(process->simdata->context);
}
@@ -303,7 +333,7 @@ int MSG_process_self_PPID(void)
*/
m_process_t MSG_process_self(void)
{
- return msg_global->current_process;
+ return msg_global ? msg_global->current_process : NULL;
}
/** \ingroup m_process_management
@@ -316,7 +346,6 @@ MSG_error_t MSG_process_suspend(m_process_t process)
{
simdata_process_t simdata = NULL;
simdata_task_t simdata_task = NULL;
- int i;
xbt_assert0(((process) && (process->simdata)), "Invalid parameters");
@@ -366,13 +395,15 @@ MSG_error_t MSG_process_resume(m_process_t process)
{
simdata_process_t simdata = NULL;
simdata_task_t simdata_task = NULL;
- int i;
xbt_assert0(((process != NULL) && (process->simdata)), "Invalid parameters");
CHECK_HOST();
- simdata = process->simdata;
+ if(process == MSG_process_self()) {
+ MSG_RETURN(MSG_OK);
+ }
+ simdata = process->simdata;
if(simdata->blocked) {
PAJE_PROCESS_POP_STATE(process);
@@ -406,25 +437,35 @@ MSG_error_t MSG_process_resume(m_process_t process)
* This checks whether a process is suspended or not by inspecting the
* task on which it was waiting for the completion.
*/
-int MSG_process_isSuspended(m_process_t process)
+int MSG_process_is_suspended(m_process_t process)
{
xbt_assert0(((process != NULL) && (process->simdata)), "Invalid parameters");
return (process->simdata->suspended);
}
-MSG_error_t __MSG_process_block(void)
+static char blocked_name[512];
+
+int __MSG_process_block(double max_duration)
{
m_process_t process = MSG_process_self();
m_task_t dummy = MSG_TASK_UNINITIALIZED;
- dummy = MSG_task_create("blocked", 0.0, 0, NULL);
+ snprintf(blocked_name,512,"blocked (%s:%s)",process->name,
+ process->simdata->host->name);
+
+ XBT_IN1(": max_duration=%g",max_duration);
+
+ dummy = MSG_task_create(blocked_name, 0.0, 0, NULL);
PAJE_PROCESS_PUSH_STATE(process,"B");
process->simdata->blocked=1;
__MSG_task_execute(process,dummy);
surf_workstation_resource->common_public->suspend(dummy->simdata->compute);
+ if(max_duration>=0)
+ surf_workstation_resource->common_public->set_max_duration(dummy->simdata->compute,
+ max_duration);
__MSG_wait_for_computation(process,dummy);
process->simdata->blocked=0;
@@ -433,21 +474,24 @@ MSG_error_t __MSG_process_block(void)
MSG_task_destroy(dummy);
- return MSG_OK;
+ XBT_OUT;
+ return 1;
}
MSG_error_t __MSG_process_unblock(m_process_t process)
{
simdata_process_t simdata = NULL;
simdata_task_t simdata_task = NULL;
- int i;
xbt_assert0(((process != NULL) && (process->simdata)), "Invalid parameters");
CHECK_HOST();
+ XBT_IN2(": %s unblocking %s", MSG_process_self()->name,process->name);
+
simdata = process->simdata;
if(!(simdata->waiting_task)) {
xbt_assert0(0,"Process not waiting for anything else. Weird !");
+ XBT_OUT;
return MSG_WARNING;
}
simdata_task = simdata->waiting_task->simdata;
@@ -458,6 +502,8 @@ MSG_error_t __MSG_process_unblock(m_process_t process)
PAJE_PROCESS_POP_STATE(process);
+ XBT_OUT;
+
MSG_RETURN(MSG_OK);
}