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author | Marius Vollmer <mvo@zagadka.de> | 2002-10-16 15:54:23 +0000 |
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committer | Marius Vollmer <mvo@zagadka.de> | 2002-10-16 15:54:23 +0000 |
commit | 3d527b275536d99effe4e25e6f6edabf38c89581 (patch) | |
tree | 2ab0a1c98eb409a3bfa95cc072c7f2cb6987cf27 /libguile/null-threads.h | |
parent | f77420343729541d9d959ae887bcf3d5af168d27 (diff) | |
download | guile-3d527b275536d99effe4e25e6f6edabf38c89581.tar.gz |
New files.
Diffstat (limited to 'libguile/null-threads.h')
-rw-r--r-- | libguile/null-threads.h | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/libguile/null-threads.h b/libguile/null-threads.h new file mode 100644 index 000000000..92efcad8f --- /dev/null +++ b/libguile/null-threads.h @@ -0,0 +1,98 @@ +/* classes: h_files */ + +#ifndef SCM_NULL_DEFS_H +#define SCM_NULL_DEFS_H + +/* Copyright (C) 2002 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program 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 this software; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, + * Boston, MA 02111-1307 USA + * + * As a special exception, the Free Software Foundation gives permission + * for additional uses of the text contained in its release of GUILE. + * + * The exception is that, if you link the GUILE library with other files + * to produce an executable, this does not by itself cause the + * resulting executable to be covered by the GNU General Public License. + * Your use of that executable is in no way restricted on account of + * linking the GUILE library code into it. + * + * This exception does not however invalidate any other reasons why + * the executable file might be covered by the GNU General Public License. + * + * This exception applies only to the code released by the + * Free Software Foundation under the name GUILE. If you copy + * code from other Free Software Foundation releases into a copy of + * GUILE, as the General Public License permits, the exception does + * not apply to the code that you add in this way. To avoid misleading + * anyone as to the status of such modified files, you must delete + * this exception notice from them. + * + * If you write modifications of your own for GUILE, it is your choice + * whether to permit this exception to apply to your modifications. + * If you do not wish that, delete this exception notice. */ + + + +/* The null-threads implementation. We provide the standard API, but + no new threads can be created. +*/ + +#define SCM_CRITICAL_SECTION_START +#define SCM_CRITICAL_SECTION_END +#define SCM_THREAD_SWITCHING_CODE + +typedef struct scm_null_mutex { + int locked; +} scm_null_mutex; + +SCM_API int scm_null_mutex_init (scm_null_mutex *); +SCM_API int scm_null_mutex_lock (scm_null_mutex *); +SCM_API int scm_null_mutex_unlock (scm_null_mutex *); +SCM_API int scm_null_mutex_destroy (scm_null_mutex *); + +typedef scm_null_mutex scm_t_mutex; +#define scm_mutex_init scm_null_mutex_init +#define scm_mutex_lock scm_null_mutex_lock +#define scm_mutex_unlock scm_null_mutex_unlock + +typedef struct scm_null_condvar { + int signalled; +} scm_null_condvar; + +SCM_API int scm_null_condvar_init (scm_null_condvar *); +SCM_API int scm_null_condvar_wait (scm_null_condvar *, scm_null_mutex *); +SCM_API int scm_null_condvar_signal (scm_null_condvar *); +SCM_API int scm_null_condvar_destroy (scm_null_condvar *); + +typedef scm_null_condvar scm_t_condvar; +#define scm_cond_init scm_null_condvar_init +#define scm_cond_wait scm_null_condvar_wait +#define scm_cond_signal scm_null_condvar_signal +#define scm_cond_broadcast scm_null_condvar_signal /* yes */ +#define scm_cond_destroy scm_null_condvar_destroy + +SCM_API void *scm_null_threads_data; + +#define SCM_THREAD_LOCAL_DATA (scm_null_threads_data) +#define SCM_SET_THREAD_LOCAL_DATA(ptr) (scm_null_threads_data = (ptr)) + +#endif /* SCM_NULL_DEFS_H */ + +/* + Local Variables: + c-file-style: "gnu" + End: +*/ |