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authorNeil Jerram <neil@ossau.uklinux.net>2009-03-25 22:50:46 +0000
committerNeil Jerram <neil@ossau.uklinux.net>2009-03-25 22:50:46 +0000
commit7627abf6ecf1770367ea2c5f8d61e14fa4843c8a (patch)
tree5d0d4f24a9809f49b2001c95773d2d177947d79a /libguile/modules.c
parent7b6b81cfef3705d20715b978b51004a8c4a6ddf6 (diff)
downloadguile-7627abf6ecf1770367ea2c5f8d61e14fa4843c8a.tar.gz
Allow non-weak hash tables to be automatically thread-safe
This patch allows a fat mutex to be associated with a hash table. When a hash table has an associated mutex, that mutex will be automatically locked and unlocked around all operations (include lookups) on the hash table's internal data. * libguile/hashtab.c (make_hash_table): Init mutex field to #f. (hashtable_mark): New function. (scm_hash_fn_get_handle, scm_hash_fn_create_handle_x, scm_hash_fn_remove_x, scm_hash_clear_x, scm_internal_hash_fold, scm_internal_hash_for_each_handle): If the hash table has a mutex, lock and unlock it around all accessing of the hash table's internals. (scm_hash_use_mutex_x): New function. (scm_hashtab_prehistory): Use hashtable_mark as hash table mark function. * libguile/hashtab.h (SCM_HASHTABLE_MUTEX, SCM_SET_HASHTABLE_MUTEX, scm_hash_use_mutex_x): New declarations. (scm_t_hashtable): New mutex field.
Diffstat (limited to 'libguile/modules.c')
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