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src/winsup/cygwin ChangeLog.64bit posix_ipc.cc


CVSROOT:	/cvs/src
Module name:	src
Branch: 	cygwin-64bit-branch
Changes by:	corinna@sourceware.org	2012-12-10 19:00:13

Modified files:
	winsup/cygwin  : ChangeLog.64bit posix_ipc.cc 

Log message:
	* posix_ipc.cc: Enforce 4 byte alignment on all structs used in the
	message queue file.
	(struct mq_fattr): Fixed size mq_attr structure as stored in file.
	(struct mq_hdr): Change to have same size on 32 and 64 bit.  Add
	mqh_magic to allow check for old message queue file.
	(struct msg_hdr): Change to have same size on 32 and 64 bit.  Change
	type of mqh_attr to struct mq_fattr.
	(struct mq_info): Change to have same size on 32 and 64 bit.
	(mq_open): Add check for maximum mq_maxmsg and mq_msgsize values which
	still fit into 32 bit values.  Set mqh_magic in file to MQI_MAGIC.
	Check mqh_magic value on existing file to detect old message queue file.
	(mq_getattr): Change type of local attr variable to struct mq_fattr.
	(mq_setattr): Ditto.
	(_mq_send): Ditto.
	(_mq_receive): Ditto.
	(mq_close): Ditto.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ChangeLog.64bit.diff?cvsroot=src&only_with_tag=cygwin-64bit-branch&r1=1.1.2.57&r2=1.1.2.58
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/posix_ipc.cc.diff?cvsroot=src&only_with_tag=cygwin-64bit-branch&r1=1.30.2.3&r2=1.30.2.4


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