+/**************************************************************************/
+/* ---------------------------------------------------------------------- */
+/* Copyright (C) 2006 - 2008 FRESCOR consortium partners: */
+/* */
+/* Universidad de Cantabria, SPAIN */
+/* University of York, UK */
+/* Scuola Superiore Sant'Anna, ITALY */
+/* Kaiserslautern University, GERMANY */
+/* Univ. Politécnica Valencia, SPAIN */
+/* Czech Technical University in Prague, CZECH REPUBLIC */
+/* ENEA SWEDEN */
+/* Thales Communication S.A. FRANCE */
+/* Visual Tools S.A. SPAIN */
+/* Rapita Systems Ltd UK */
+/* Evidence ITALY */
+/* */
+/* See http://www.frescor.org for a link to partners' websites */
+/* */
+/* FRESCOR project (FP6/2005/IST/5-034026) is funded */
+/* in part by the European Union Sixth Framework Programme */
+/* The European Union is not liable of any use that may be */
+/* made of this code. */
+/* */
+/* */
+/* This file is part of FORB (Frescor Object Request Broker) */
+/* */
+/* FORB is free software; you can redistribute it and/or modify it */
+/* under terms of the GNU General Public License as published by the */
+/* Free Software Foundation; either version 2, or (at your option) any */
+/* later version. FORB is distributed in the hope that it will be */
+/* useful, but WITHOUT ANY WARRANTY; without even the implied warranty */
+/* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
+/* General Public License for more details. You should have received a */
+/* copy of the GNU General Public License along with FORB; see file */
+/* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */
+/* Cambridge, MA 02139, USA. */
+/* */
+/* As a special exception, including FORB header files in a file, */
+/* instantiating FORB generics or templates, or linking other files */
+/* with FORB objects to produce an executable application, does not */
+/* by itself cause the resulting executable application to be covered */
+/* by the GNU General Public License. This exception does not */
+/* however invalidate any other reasons why the executable file might be */
+/* covered by the GNU Public License. */
+/**************************************************************************/
+
+/**
+ * @file executor.c
+ * @author Michal Sojka <sojkam1@fel.cvut.cz>
+ * @date Sun Oct 12 16:18:04 2008
+ *
+ * @brief Implementation of executors.
+ */
+
+
#include "executor.h"
#include "exec_req.h"
#include "object.h"
+#include <ul_log.h>
+#include <stdio.h>
+#include <pthread.h>
+
+extern UL_LOG_CUST(ulogd_forb_executor);
+static pthread_key_t forb_executor_key = -1;
+
+int forb_executor_prepare()
+{
+ return pthread_key_create(&forb_executor_key, NULL);
+}
+
+/**
+ * Initializes executor.
+ *
+ * @param executor
+ *
+ * @return Zero on success, FOSA error code on error.
+ */
int forb_executor_init(forb_executor_t *executor)
{
int ret;
if (ret) return ret;
forb_exec_req_nolock_init_head(executor);
+
+ forb_syncobj_init(&executor->reply_processed, 0);
return 0;
}
+
void forb_executor_destroy(forb_executor_t *executor)
{
/* TODO: */
}
/**
- * Executor's main loop which processes requests.
+ * Unregisteres the object @a obj from @a executor.
+ *
+ * @param executor
+ * @param obj
+ */
+void forb_executor_unregister_object(forb_executor_t *executor, forb_object obj)
+{
+ if (obj) {
+ obj->executor = NULL;
+ }
+}
+
+/**
+ * Executor's main loop which executes object implementation methods
+ * upon request.
+ *
+ * The requests are represented by ::forb_exec_req_t and are enqueued
+ * to the executor's request queue by receiver threads of individual
+ * ports (forb_iop_receiver_thread()).
*
* @param executor
*
- * @return Will be defined later.
+ * @return Zero on normal termination, non-zero error codes will be
+ * defined later.
*/
int forb_executor_run(forb_executor_t *executor)
{
+ int ret;
+
+ // setting pointer to executor as thread specific data
+ if ((ret = pthread_setspecific(forb_executor_key, executor)))
+ goto ret;
+
fosa_mutex_lock(&executor->mutex);
while (1) {
- fosa_cond_wait(&executor->new_request_in_empty_list,
- &executor->mutex);
while (!forb_exec_req_nolock_is_empty(executor)) {
forb_exec_req_t *exec_req;
exec_req = forb_exec_req_nolock_cut_first(executor);
fosa_mutex_lock(&executor->mutex);
}
+ fosa_cond_wait(&executor->new_request_in_empty_list,
+ &executor->mutex);
}
fosa_mutex_unlock(&executor->mutex);
- return 0;
+ret:
+ return ret;
}
/**
* Convenience function for executing only one object in one executor.
+ * This function calls forb_signal_server_ready() at the appropriate
+ * place.
*
* @param obj The object to execute.
*
if (ret) goto error;
ret = forb_executor_register_object(&executor, obj);
if (ret) goto destroy_and_error;
+
+ ret = forb_signal_server_ready(obj->orb);
+ if (ret) goto destroy_and_error;
ret = forb_executor_run(&executor);
error:
return ret;
}
+
+
+/**
+ * Determines the executor we are currently in.
+ *
+ * @return Pointer to the current executor or NULL if not called
+ * within executor.
+ */
+forb_executor_t *forb_get_current_executor(void)
+{
+ return pthread_getspecific(forb_executor_key);
+}
projects / frescor / forb.git / blobdiff