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authorMarius Vollmer <mvo@zagadka.de>2002-10-16 15:54:23 +0000
committerMarius Vollmer <mvo@zagadka.de>2002-10-16 15:54:23 +0000
commit3d527b275536d99effe4e25e6f6edabf38c89581 (patch)
tree2ab0a1c98eb409a3bfa95cc072c7f2cb6987cf27 /libguile/null-threads.h
parentf77420343729541d9d959ae887bcf3d5af168d27 (diff)
downloadguile-3d527b275536d99effe4e25e6f6edabf38c89581.tar.gz
New files.
Diffstat (limited to 'libguile/null-threads.h')
-rw-r--r--libguile/null-threads.h98
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diff --git a/libguile/null-threads.h b/libguile/null-threads.h
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--- /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:
+*/