131 строка
4.3 KiB
C
131 строка
4.3 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
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* Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#ifndef OPAL_THREAD_H
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#define OPAL_THREAD_H 1
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#include "opal_config.h"
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#if OPAL_HAVE_POSIX_THREADS
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#include <pthread.h>
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#endif
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#ifdef HAVE_SIGNAL_H
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#include <signal.h>
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#endif
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#include "opal/class/opal_object.h"
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#if OPAL_ENABLE_DEBUG
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#include "opal/util/output.h"
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#endif
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#include "mutex.h"
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#include "condition.h"
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BEGIN_C_DECLS
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typedef void *(*opal_thread_fn_t) (opal_object_t *);
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#define OPAL_THREAD_CANCELLED ((void*)1);
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struct opal_thread_t {
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opal_object_t super;
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opal_thread_fn_t t_run;
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void* t_arg;
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#ifdef OPAL_HAVE_POSIX_THREADS
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pthread_t t_handle;
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#endif
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};
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typedef struct opal_thread_t opal_thread_t;
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#if OPAL_ENABLE_DEBUG
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OPAL_DECLSPEC extern bool opal_debug_threads;
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#endif
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OPAL_DECLSPEC OBJ_CLASS_DECLARATION(opal_thread_t);
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#if OPAL_ENABLE_DEBUG
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#define OPAL_ACQUIRE_THREAD(lck, cnd, act) \
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do { \
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OPAL_THREAD_LOCK((lck)); \
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if (opal_debug_threads) { \
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opal_output(0, "Waiting for thread %s:%d", \
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__FILE__, __LINE__); \
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} \
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while (*(act)) { \
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opal_condition_wait((cnd), (lck)); \
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} \
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if (opal_debug_threads) { \
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opal_output(0, "Thread obtained %s:%d", \
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__FILE__, __LINE__); \
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} \
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*(act) = true; \
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} while(0);
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#else
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#define OPAL_ACQUIRE_THREAD(lck, cnd, act) \
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do { \
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OPAL_THREAD_LOCK((lck)); \
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while (*(act)) { \
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opal_condition_wait((cnd), (lck)); \
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} \
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*(act) = true; \
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} while(0);
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#endif
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#if OPAL_ENABLE_DEBUG
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#define OPAL_RELEASE_THREAD(lck, cnd, act) \
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do { \
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if (opal_debug_threads) { \
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opal_output(0, "Releasing thread %s:%d", \
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__FILE__, __LINE__); \
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} \
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*(act) = false; \
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opal_condition_broadcast((cnd)); \
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OPAL_THREAD_UNLOCK((lck)); \
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} while(0);
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#else
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#define OPAL_RELEASE_THREAD(lck, cnd, act) \
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do { \
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*(act) = false; \
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opal_condition_broadcast((cnd)); \
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OPAL_THREAD_UNLOCK((lck)); \
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} while(0);
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#endif
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#define OPAL_WAKEUP_THREAD(cnd, act) \
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do { \
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*(act) = false; \
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opal_condition_broadcast((cnd)); \
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} while(0);
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OPAL_DECLSPEC int opal_thread_start(opal_thread_t *);
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OPAL_DECLSPEC int opal_thread_join(opal_thread_t *, void **thread_return);
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OPAL_DECLSPEC bool opal_thread_self_compare(opal_thread_t*);
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OPAL_DECLSPEC opal_thread_t *opal_thread_get_self(void);
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OPAL_DECLSPEC void opal_thread_kill(opal_thread_t *, int sig);
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END_C_DECLS
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#endif /* OPAL_THREAD_H */
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