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bind9
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isccc
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ccmsg.h
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/* * Portions Copyright (C) Internet Systems Consortium, Inc. ("ISC") * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * See the COPYRIGHT file distributed with this work for additional * information regarding copyright ownership. * * Portions Copyright (C) 2001 Nominum, Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ISC AND NOMINUM DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef ISCCC_CCMSG_H #define ISCCC_CCMSG_H 1 /*! \file isccc/ccmsg.h */ #include <isc/buffer.h> #include <isc/lang.h> #include <isc/socket.h> /*% ISCCC Message Structure */ typedef struct isccc_ccmsg { /* private (don't touch!) */ unsigned int magic; isc_uint32_t size; isc_buffer_t buffer; unsigned int maxsize; isc_mem_t *mctx; isc_socket_t *sock; isc_task_t *task; isc_taskaction_t action; void *arg; isc_event_t event; /* public (read-only) */ isc_result_t result; isc_sockaddr_t address; } isccc_ccmsg_t; ISC_LANG_BEGINDECLS void isccc_ccmsg_init(isc_mem_t *mctx, isc_socket_t *sock, isccc_ccmsg_t *ccmsg); /*% * Associate a cc message state with a given memory context and * TCP socket. * * Requires: * *\li "mctx" and "sock" be non-NULL and valid types. * *\li "sock" be a read/write TCP socket. * *\li "ccmsg" be non-NULL and an uninitialized or invalidated structure. * * Ensures: * *\li "ccmsg" is a valid structure. */ void isccc_ccmsg_setmaxsize(isccc_ccmsg_t *ccmsg, unsigned int maxsize); /*% * Set the maximum packet size to "maxsize" * * Requires: * *\li "ccmsg" be valid. * *\li 512 <= "maxsize" <= 4294967296 */ isc_result_t isccc_ccmsg_readmessage(isccc_ccmsg_t *ccmsg, isc_task_t *task, isc_taskaction_t action, void *arg); /*% * Schedule an event to be delivered when a command channel message is * readable, or when an error occurs on the socket. * * Requires: * *\li "ccmsg" be valid. * *\li "task", "taskaction", and "arg" be valid. * * Returns: * *\li #ISC_R_SUCCESS -- no error *\li Anything that the isc_socket_recv() call can return. XXXMLG * * Notes: * *\li The event delivered is a fully generic event. It will contain no * actual data. The sender will be a pointer to the isccc_ccmsg_t. * The result code inside that structure should be checked to see * what the final result was. */ void isccc_ccmsg_cancelread(isccc_ccmsg_t *ccmsg); /*% * Cancel a readmessage() call. The event will still be posted with a * CANCELED result code. * * Requires: * *\li "ccmsg" be valid. */ void isccc_ccmsg_invalidate(isccc_ccmsg_t *ccmsg); /*% * Clean up all allocated state, and invalidate the structure. * * Requires: * *\li "ccmsg" be valid. * * Ensures: * *\li "ccmsg" is invalidated and disassociated with all memory contexts, * sockets, etc. */ ISC_LANG_ENDDECLS #endif /* ISCCC_CCMSG_H */
/home/sudancam/../../usr/include/./bind9/isccc/ccmsg.h