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/* classes: h_files */

#ifndef SCM_ASYNC_H
#define SCM_ASYNC_H

/* Copyright (C) 1995-1998, 2000-2002, 2004-2006, 2008, 2009, 2011
 *   2014 Free Software Foundation, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 3 of
 * the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 */



#include "libguile/__scm.h"
#include "libguile/threads.h"



SCM_API void scm_async_tick (void);
SCM_API void scm_switch (void);
SCM_API SCM scm_system_async_mark (SCM a);
SCM_API SCM scm_system_async_mark_for_thread (SCM a, SCM thread);

SCM_API int scm_c_prepare_to_wait_on_fd (int fd);
SCM_API int scm_c_prepare_to_wait_on_cond (scm_i_pthread_mutex_t *m,
                                           scm_i_pthread_cond_t *c);
SCM_API void scm_c_wait_finished (void);

SCM_API SCM scm_noop (SCM args);
SCM_API SCM scm_call_with_blocked_asyncs (SCM proc);
SCM_API SCM scm_call_with_unblocked_asyncs (SCM proc);
SCM_API void *scm_c_call_with_blocked_asyncs (void *(*p) (void *d), void *d);
SCM_API void *scm_c_call_with_unblocked_asyncs (void *(*p) (void *d), void *d);
SCM_API void scm_dynwind_block_asyncs (void);
SCM_API void scm_dynwind_unblock_asyncs (void);

SCM_INTERNAL int scm_i_prepare_to_wait (scm_i_thread *,
                                        struct scm_thread_wake_data *);
SCM_INTERNAL void scm_i_wait_finished (scm_i_thread *);
SCM_INTERNAL int scm_i_prepare_to_wait_on_fd (scm_i_thread *, int);
SCM_INTERNAL int scm_i_prepare_to_wait_on_cond (scm_i_thread *,
                                                scm_i_pthread_mutex_t *,
                                                scm_i_pthread_cond_t *);

SCM_INTERNAL void scm_i_async_push (scm_i_thread *t, SCM proc);
SCM_INTERNAL SCM scm_i_async_pop (scm_i_thread *t);

SCM_INTERNAL void scm_init_async (void);

#endif  /* SCM_ASYNC_H */

/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/