src/winsup/cygwin ChangeLog cygserver_shm.cc c ...

[scottc at cygwin dot com]

CVSROOT:	/cvs/src
Module name:	src
Branch: 	cygwin_daemon
Changes by:	scottc@sources.redhat.com	2002-07-02 19:40:51

Modified files:
	winsup/cygwin  : ChangeLog cygserver_shm.cc cygserver_ipc.h 
	                 cygserver_shm.h shm.cc 
	winsup/cygwin/include/sys: ipc.h shm.h 

Log message:
	* cygserver_shm.cc: Implement the ipcs(8) interfaces, IPC_INFO,
	SHM_STAT and SHM_INFO.
	(server_shmmgr::segment_t::sequence): New static field.
	(server_shmmgr::segment_t::key): Remove field, use the new
	ds.shm_perm.key field instead.
	(server_shmmgr::segment_t::shmid): Remove field.
	(server_shmmgr::segment_t::intid): New field.
	(server_shmmgr::segment_t::segment_t): Use the `key' argument to
	initialise `ds.shm_perm.key'.  Change from using `shmid' to
	`intid'.
	(server_shmmgr::_shmseg_cnt): Renamed from `_shmid_cnt'.
	(server_shmmgr::_intid_max): Renamed from `_shmid_max.
	(server_shmmgr::shmat): Move the out arguments to the start of the
	argument list.  Rename the `pid' argument as `cygpid'.  Add
	tracing.  Pass an intid to `find ()', not a shmid.
	(server_shmmgr::shmctl): Add separate out arguments.  Rename the
	`pid' argument as `cygpid'.  Add support for the ipcs(8)
	interfaces.  Add tracing.  Pass an intid to `find ()', not a
	shmid.
	(server_shmmgr::shmdt): Rename the `pid' argument as `cygpid'.
	Add tracing.  Pass an intid to `find ()', not a shmid.
	(server_shmmgr::shmget): Add a separate out arguments.  Rename the
	`pid' argument as `cygpid'.  Add tracing.
	(server_shmmgr::server_shmmgr): Update for new field names.
	(server_shmmgr::find_by_key): Update for the new `ds.shm_perm.key'
	field.
	(server_shmmgr::find): Update to use the new `segment_t::intid'
	field.
	(server_shmmgr::new_segment): Rename the `pid' argument as
	`cygpid'.  Check that the requested size is within bounds.  Handle
	new error result from `new_segment (key, HANDLE)'.
	(server_shmmgr::new_segment): Work with intids, not shmids.  Check
	that the new intid is within bounds.  Update for new field names.
	(server_shmmgr::delete_segment): Pass an intid to `find ()', not a
	shmid.  Update for new field names.
	(client_request_shm::serve): Check that the incoming message
	length is the size of the `_parameters.in' struct, not of the
	whole in/out parameter union.  Likewise, set the outgoing message
	length to the size of the `_parameters.out' struct.  Update for
	the new server_shmmgr interfaces.
	* include/sys/ipc.h (ipc_perm::key): New field.
	* include/sys/shm.h (SHM_INFO): New constant.
	* cygserver_ipc.h (IPCMNI): New constant.
	(ipc_int2ext): Add `sequence' argument and munge this into the
	external ipc id.
	(ipc_ext2int_subsys): Unmunge the sequence number from the
	external ipc id.
	(ipc_ext2int): Ditto.
	(ipc_inc_id): Remove.
	(ipc_dec_id): Remove.
	* cygserver_shm.h (SHMMAX): New constant.
	(SHMMIN): Ditto.
	(SHMMNI): Ditto.
	(SHMSEG): Ditto.
	(SHMALL): Ditto.
	(client_request_shm::_parameters): Re-arrange as a union of two
	separate structs, one for in arguments, the other for out.
	(client_request_shm::shmid): Update for the new parameter layout.
	(client_request_shm::ds): Ditto.
	(client_request_shm::info): New method.
	* shm.cc (client_shmmgr::_shmat_cnt): New static field.
	(client_shmmgr::shmat): Add locking.  Add tracing.
	(client_shmmgr::shmctl): Update for ipcs(8) commands.  Add
	tracing.  Add more argument checking.
	(client_shmmgr::shmdt): Add locking.  Add tracing.  Update the new
	`_shmat_cnt' field.
	(client_shmmgr::shmget): Add tracing.
	(client_shmmgr::fixup_shms_after_fork): Add tracing.  Add
	consistency checking.
	(client_shmmgr::attach): Add more tracing.
	(client_shmmgr::new_segment): Update the new `_shmat_cnt' field.
	(client_request_shm::client_request_shm): Update for the new
	parameter layout.  Set the outgoing message length to the size of
	the `_parameters.in' struct, not of the whole in/out parameter
	union.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ChangeLog.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.915.2.75&r2=1.915.2.76
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/cygserver_shm.cc.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.1.2.20&r2=1.1.2.21
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/cygserver_ipc.h.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.1.2.2&r2=1.1.2.3
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/cygserver_shm.h.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.1.2.13&r2=1.1.2.14
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/shm.cc.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.1.2.14&r2=1.1.2.15
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/include/sys/ipc.h.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.1.2.5&r2=1.1.2.6
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/include/sys/shm.h.diff?cvsroot=src&only_with_tag=cygwin_daemon&r1=1.1.2.4&r2=1.1.2.5