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authorMark H Weaver <mhw@netris.org>2013-11-17 04:00:29 -0500
committerMark H Weaver <mhw@netris.org>2013-11-23 14:39:51 -0500
commite676a4c34211efc8a7558afb0f8572b88a89c683 (patch)
treeb28d19127e14d401629195012a8695dc3a224501 /libguile/async.h
parent1e42832af07ea6ac68ecbe4f6a3376ff509a2a51 (diff)
downloadguile-e676a4c34211efc8a7558afb0f8572b88a89c683.tar.gz
Add mutex locking functions that also block asyncs.
* libguile/async.h (scm_i_pthread_mutex_lock_block_asyncs, scm_i_pthread_mutex_unlock_unblock_asyncs): New macros. * libguile/threads.c (do_unlock_with_asyncs): New static helper. (scm_i_dynwind_pthread_mutex_lock_block_asyncs): New function. * libguile/threads.h (scm_i_dynwind_pthread_mutex_lock_block_asyncs): Add prototype.
Diffstat (limited to 'libguile/async.h')
-rw-r--r--libguile/async.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/libguile/async.h b/libguile/async.h
index ceb2b960b..b3503de9a 100644
--- a/libguile/async.h
+++ b/libguile/async.h
@@ -78,6 +78,22 @@ SCM_API void scm_critical_section_end (void);
scm_async_click (); \
} while (0)
+# define scm_i_pthread_mutex_lock_block_asyncs(m) \
+ do \
+ { \
+ SCM_I_CURRENT_THREAD->block_asyncs++; \
+ scm_i_pthread_mutex_lock (m); \
+ } \
+ while (0)
+
+# define scm_i_pthread_mutex_unlock_unblock_asyncs(m) \
+ do \
+ { \
+ scm_i_pthread_mutex_unlock (m); \
+ SCM_I_CURRENT_THREAD->block_asyncs--; \
+ } \
+ while (0)
+
#else /* !BUILDING_LIBGUILE */
# define SCM_CRITICAL_SECTION_START scm_critical_section_start ()