6 /* Copyright (C) 1995,1996,1997,1998,2000,2001, 2002, 2004, 2005 Free Software Foundation, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include "libguile/__scm.h"
26 #include "libguile/root.h"
27 #include "libguile/threads.h"
31 #define scm_mask_ints (SCM_I_CURRENT_THREAD->block_asyncs != 0)
35 SCM_API
void scm_async_click (void);
36 SCM_API
void scm_switch (void);
37 SCM_API SCM
scm_async (SCM thunk
);
38 SCM_API SCM
scm_async_mark (SCM a
);
39 SCM_API SCM
scm_system_async_mark (SCM a
);
40 SCM_API SCM
scm_system_async_mark_for_thread (SCM a
, SCM thread
);
41 SCM_API
void scm_i_queue_async_cell (SCM cell
, scm_i_thread
*);
42 SCM_API
int scm_i_setup_sleep (scm_i_thread
*,
43 SCM obj
, scm_i_pthread_mutex_t
*m
, int fd
);
44 SCM_API
void scm_i_reset_sleep (scm_i_thread
*);
45 SCM_API SCM
scm_run_asyncs (SCM list_of_a
);
46 SCM_API SCM
scm_noop (SCM args
);
47 SCM_API SCM
scm_call_with_blocked_asyncs (SCM proc
);
48 SCM_API SCM
scm_call_with_unblocked_asyncs (SCM proc
);
49 void *scm_c_call_with_blocked_asyncs (void *(*p
) (void *d
), void *d
);
50 void *scm_c_call_with_unblocked_asyncs (void *(*p
) (void *d
), void *d
);
51 void scm_frame_block_asyncs (void);
52 void scm_frame_unblock_asyncs (void);
54 /* Critical sections */
56 /* XXX - every critical section needs to be examined whether the
57 requirements for SCM_CRITICAL_SECTION_START/END are fulfilled. See
61 /* Defined in threads.c. scm_i_critical_section_level is only used
62 for error checking and will go away eventually. */
63 extern scm_i_pthread_mutex_t scm_i_critical_section_mutex
;
64 extern int scm_i_critical_section_level
;
66 #define SCM_CRITICAL_SECTION_START \
68 scm_i_pthread_mutex_lock (&scm_i_critical_section_mutex);\
69 SCM_I_CURRENT_THREAD->block_asyncs++; \
70 scm_i_critical_section_level++; \
72 #define SCM_CRITICAL_SECTION_END \
74 scm_i_critical_section_level--; \
75 SCM_I_CURRENT_THREAD->block_asyncs--; \
76 scm_i_pthread_mutex_unlock (&scm_i_critical_section_mutex); \
80 SCM_API
void scm_init_async (void);
82 #if (SCM_ENABLE_DEPRECATED == 1)
84 SCM_API SCM
scm_system_async (SCM thunk
);
85 SCM_API SCM
scm_unmask_signals (void);
86 SCM_API SCM
scm_mask_signals (void);
90 #endif /* SCM_ASYNC_H */