bsd/kern/kern_descrip.c

95 #include <kern/lock.h>
191  * Description:	Initialize the file lock group and the uipc and flist locks
202 	/* allocate file lock group attribute and group */
207 	/* Allocate file lock attribute */
220  * Parameters:	p				Process to take the lock on
224  * Notes:	The lock is initialized in forkproc() and destroyed in
249  * Description:	Unlock the lock previously locked by a call to proc_fdlock()
251  * Parameters:	p				Process to drop the lock on
860 		/* Copy in the lock structure */
938 		/* Copy in the lock structure */
1782 		 * while we still hold the proc fd lock
2153  * Notes:	This function may drop and reacquire this lock; it is unsafe
2154  *		for a caller to assume that other state protected by the lock
2285  *		with lock held
2287  * Notes:	This function may drop and reacquire this lock; it is unsafe
2288  *		for a caller to assume that other state protected by the lock
2290  *		caller made the call with the lock held.
3424  *		zero, than this routine internally takes and drops this lock.
3543  *		the caller already holds this lock if 'locked' is non-zero.
3905  * Locks:	This function takes and drops the proc_fdlock; if this lock
3959  *		lock.
4107  * XXX:		We should likely reverse the lock and funnel drop/acquire
4704  * Description:	Apply an advisory lock on a file descriptor.
4707  *		uap->fd				fd on which the lock is to be
4721  * Notes:	Just attempt to get a record lock of the requested type on
5264  *		function releases and reacquires this lock.  If the caller
5265  *		accesses data protected by this lock prior to calling this