83 lines
3.0 KiB
C
83 lines
3.0 KiB
C
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/**
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* @file SinglePacketSender.h
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* @author Ambroz Bizjak <ambrop7@gmail.com>
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*
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* @section LICENSE
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @section DESCRIPTION
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*
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* A {@link PacketPassInterface} source which sends a single packet.
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*/
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#ifndef BADVPN_FLOW_SINGLEPACKETSENDER_H
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#define BADVPN_FLOW_SINGLEPACKETSENDER_H
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#include <stdint.h>
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#include <misc/debugerror.h>
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#include <base/DebugObject.h>
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#include <flow/PacketPassInterface.h>
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/**
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* Handler function called after the packet is sent.
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* The object must be freed from within this handler.
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*
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* @param user as in {@link SinglePacketSender_Init}.
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*/
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typedef void (*SinglePacketSender_handler) (void *user);
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/**
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* A {@link PacketPassInterface} source which sends a single packet.
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*/
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typedef struct {
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PacketPassInterface *output;
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SinglePacketSender_handler handler;
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void *user;
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DebugObject d_obj;
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DebugError d_err;
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} SinglePacketSender;
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/**
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* Initializes the object.
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*
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* @param o the object
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* @param packet packet to be sent. Must be available as long as the object exists.
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* @param packet_len length of the packet. Must be >=0 and <=(MTU of output).
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* @param output output interface
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* @param handler handler to call when the packet is sent
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* @param user value to pass to handler
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* @param pg pending group
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*/
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void SinglePacketSender_Init (SinglePacketSender *o, uint8_t *packet, int packet_len, PacketPassInterface *output, SinglePacketSender_handler handler, void *user, BPendingGroup *pg);
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/**
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* Frees the object.
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*
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* @param o the object
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*/
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void SinglePacketSender_Free (SinglePacketSender *o);
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#endif
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