diff options
Diffstat (limited to 'lib/dns/include/dns/dispatch.h')
| -rw-r--r-- | lib/dns/include/dns/dispatch.h | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/lib/dns/include/dns/dispatch.h b/lib/dns/include/dns/dispatch.h index 3f881dfcf1d6c..1235f7ca40f39 100644 --- a/lib/dns/include/dns/dispatch.h +++ b/lib/dns/include/dns/dispatch.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004-2009, 2012 Internet Systems Consortium, Inc. ("ISC") + * Copyright (C) 2004-2009, 2011, 2012 Internet Systems Consortium, Inc. ("ISC") * Copyright (C) 1999-2003 Internet Software Consortium. * * Permission to use, copy, modify, and/or distribute this software for any @@ -15,7 +15,7 @@ * PERFORMANCE OF THIS SOFTWARE. */ -/* $Id$ */ +/* $Id: dispatch.h,v 1.64 2011/07/28 23:47:58 tbox Exp $ */ #ifndef DNS_DISPATCH_H #define DNS_DISPATCH_H 1 @@ -54,6 +54,7 @@ #include <isc/buffer.h> #include <isc/lang.h> +#include <isc/mutex.h> #include <isc/socket.h> #include <isc/types.h> @@ -88,6 +89,18 @@ struct dns_dispatchevent { isc_uint32_t attributes; /*%< mirrored from socket.h */ }; +/*% + * This is a set of one or more dispatches which can be retrieved + * round-robin fashion. + */ +struct dns_dispatchset { + isc_mem_t *mctx; + dns_dispatch_t **dispatches; + int ndisp; + int cur; + isc_mutex_t lock; +}; + /*@{*/ /*% * Attributes for added dispatchers. @@ -245,6 +258,15 @@ dns_dispatch_getudp(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr, unsigned int buckets, unsigned int increment, unsigned int attributes, unsigned int mask, dns_dispatch_t **dispp); + +isc_result_t +dns_dispatch_getudp_dup(dns_dispatchmgr_t *mgr, isc_socketmgr_t *sockmgr, + isc_taskmgr_t *taskmgr, isc_sockaddr_t *localaddr, + unsigned int buffersize, + unsigned int maxbuffers, unsigned int maxrequests, + unsigned int buckets, unsigned int increment, + unsigned int attributes, unsigned int mask, + dns_dispatch_t **dispp, dns_dispatch_t *dup); /*%< * Attach to existing dns_dispatch_t if one is found with dns_dispatchmgr_find, * otherwise create a new UDP dispatch. @@ -496,6 +518,46 @@ dns_dispatch_importrecv(dns_dispatch_t *disp, isc_event_t *event); * event != NULL */ +dns_dispatch_t * +dns_dispatchset_get(dns_dispatchset_t *dset); +/*%< + * Retrieve the next dispatch from dispatch set 'dset', and increment + * the round-robin counter. + * + * Requires: + *\li dset != NULL + */ + +isc_result_t +dns_dispatchset_create(isc_mem_t *mctx, isc_socketmgr_t *sockmgr, + isc_taskmgr_t *taskmgr, dns_dispatch_t *source, + dns_dispatchset_t **dsetp, int n); +/*%< + * Given a valid dispatch 'source', create a dispatch set containing + * 'n' UDP dispatches, with the remainder filled out by clones of the + * source. + * + * Requires: + *\li source is a valid UDP dispatcher + *\li dsetp != NULL, *dsetp == NULL + */ + +void +dns_dispatchset_cancelall(dns_dispatchset_t *dset, isc_task_t *task); +/*%< + * Cancel socket operations for the dispatches in 'dset'. + */ + +void +dns_dispatchset_destroy(dns_dispatchset_t **dsetp); +/*%< + * Dereference all the dispatches in '*dsetp', free the dispatchset + * memory, and set *dsetp to NULL. + * + * Requires: + *\li dset is valid + */ + ISC_LANG_ENDDECLS #endif /* DNS_DISPATCH_H */ |