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7673491416
part of the API, otherwise it's difficult to write Guile extensions using non-blocking I/O => moved #include "libguile/iselect.h" from coop-pthreads.c --> coop-pthreads.h. * coop-pthreads.c (scm_unlock_mutex): Changed s_lock_mutex --> s_unlock_mutex.
105 lines
3.5 KiB
C
105 lines
3.5 KiB
C
/* classes: h_files */
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#ifndef SCM_COOP_PTHREADS_H
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#define SCM_COOP_PTHREADS_H
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/* Copyright (C) 2002 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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/* The coop-pthreads implementation. We use pthreads for the basic
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multi threading stuff, but rig it so that only one thread is ever
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active inside Guile.
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*/
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#include <pthread.h>
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#include "libguile/iselect.h"
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#if (SCM_ENABLE_DEPRECATED == 1)
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/* Thread local data support --- generic C API */
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typedef pthread_key_t scm_t_key;
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#define scm_key_create pthread_key_create
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#define scm_setspecific pthread_setspecific
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#define scm_getspecific pthread_getspecific
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#define scm_key_delete pthread_key_delete
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#endif /* SCM_ENABLE_DEPRECATED == 1 */
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/* Since only one thread can be active anyway, we don't need to do
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anything special around critical sections. In fact, that's the
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reason we do only support cooperative threading: Guile's critical
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regions have not been completely identified yet. (I think.) */
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#define SCM_CRITICAL_SECTION_START
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#define SCM_CRITICAL_SECTION_END
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#define SCM_I_THREAD_SWITCH_COUNT 50
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#define SCM_THREAD_SWITCHING_CODE \
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do { \
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scm_i_switch_counter--; \
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if (scm_i_switch_counter == 0) \
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{ \
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scm_i_switch_counter = SCM_I_THREAD_SWITCH_COUNT; \
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scm_yield(); \
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} \
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} while (0)
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SCM_API int scm_i_switch_counter;
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#define SCM_THREAD_LOCAL_DATA (scm_i_copt_thread_data)
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#define SCM_SET_THREAD_LOCAL_DATA(ptr) (scm_i_copt_set_thread_data (ptr))
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SCM_API void *scm_i_copt_thread_data;
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SCM_API void scm_i_copt_set_thread_data (void *data);
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#endif /* SCM_COOP_PTHREAD_H */
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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