Lines Matching full:poll

36  * Caching Poll Subsystem:
38  * Each kernel thread (1), if engaged in poll system call, has a reference to
41  * calls to poll.  A bitmap (4) is stored inside the poll cache, where each
44  * examined on the next poll invocation.  The pollstate_t also contains a list
60  * | /dev/poll tbl |	    |
77  * Both poll system call and /dev/poll use the pollcache_t structure
78  * definition and the routines managing the structure. But poll(2) and
79  * /dev/poll have their own copy of the structures. The /dev/poll driver
84 #include <sys/poll.h>
114 	pollfd_t	*pcs_pollfd;	/* cached poll lists */
115 	size_t		pcs_nfds;	/* number of poll fd in cached list */
122  * Maximum depth for recusive poll operations.
130 	pollfd_t	*ps_pollfd;	/* hold the current poll list */
133 	pollcache_t	*ps_pcache;	/* cached poll fd set */
134 	pollcacheset_t	*ps_pcacheset;	/* cached poll lists */
135 	int		ps_nsets;	/* no. of cached poll sets */
158  * poll cache size defines
162 #define	POLLHASHINC		2	/* poll hash table growth factor */
163 #define	POLLHASHTHRESHOLD	2	/* poll hash list length threshold */
164 #define	POLLHASH(x, y)	((y) % (x))	/* poll hash function */
167  * poll.c assumes the POLLMAPCHUNK is power of 2
173  * poll list for quick revents update.
176 	ssize_t	xf_position;    /* xref fd position in poll fd list */
177 	short	xf_refcnt;	/* ref cnt of same fd in poll list */
194  * pollcaches in a recursive /dev/poll operation.  Fields are protected by
211  * polldat is an entry for a cached poll fd. A polldat struct can be in
212  * poll cache table as well as on pollhead ph_list, which is used by
217 	int		pd_fd;		/* cached poll fd */
220 	pollhead_t	*pd_php;	/* used to undo poll registration */
226 	int		pd_nsets;	/* num of xref sets, used by poll(2) */
244 	ulong_t		*pc_bitmap;	/* point to poll fd bitmap */
279  * public poll head interfaces (see poll.h):
286  * private poll head interfaces:
295  * poll state interfaces:
310  *  pcache_alloc	allocate a poll cache skeleton
311  *  pcache_create       creates all poll cache supporting data struct
312  *  pcache_insert	cache a poll fd, calls pcache_insert_fd
354  * pcacheset_cache_list caches and polls a new poll list
355  * pcacheset_remove_list removes (usually a partial) cached poll list
360  * pcacheset_replace	selects a poll cacheset for replacement