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* shm.cc: Include sync.h

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(struct shm_shmid_list): Add ref_count member.
	(struct shm_attached_list): Remove hdl and size members.  Add a parent
	member pointing to referenced shm_shmid_list entry.
	(shm_guard): New muto.
	(SLIST_LOCK): Define.
	(SLIST_UNLOCK): Define.
	(fixup_shms_after_fork): Use hdl and size members of parent
	shm_shmid_list entry.
	(shmat): Access sequential bookkeeping lists in a thread safe way.
	Accommodate change in list element layout.  Align comments.
	(shmctl): Ditto.
	(shmdt): Ditto.
	(shmget): Ditto.
This commit is contained in:
Corinna Vinschen
2007-11-06 13:29:53 +00:00
parent 8f14a11301
commit 03abe23b1a
2 changed files with 68 additions and 21 deletions
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17
winsup/cygwin/ChangeLog
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@@ -1,3 +1,20 @@
2007-11-06 Corinna Vinschen <corinna@vinschen.de>
* shm.cc: Include sync.h
(struct shm_shmid_list): Add ref_count member.
(struct shm_attached_list): Remove hdl and size members. Add a parent
member pointing to referenced shm_shmid_list entry.
(shm_guard): New muto.
(SLIST_LOCK): Define.
(SLIST_UNLOCK): Define.
(fixup_shms_after_fork): Use hdl and size members of parent
shm_shmid_list entry.
(shmat): Access sequential bookkeeping lists in a thread safe way.
Accommodate change in list element layout. Align comments.
(shmctl): Ditto.
(shmdt): Ditto.
(shmget): Ditto.
2007-11-05 Corinna Vinschen <corinna@vinschen.de>
* shm.cc (shmctl): On IPC_RMID don't unmap views and don't close handle