132 lines
4.3 KiB
C
132 lines
4.3 KiB
C
/**
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* @file PacketPassInactivityMonitor.c
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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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#include "PacketPassInactivityMonitor.h"
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static void input_handler_send (PacketPassInactivityMonitor *o, uint8_t *data, int data_len)
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{
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DebugObject_Access(&o->d_obj);
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// schedule send
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PacketPassInterface_Sender_Send(o->output, data, data_len);
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// stop timer
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BReactor_RemoveTimer(o->reactor, &o->timer);
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}
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static void input_handler_requestcancel (PacketPassInactivityMonitor *o)
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{
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DebugObject_Access(&o->d_obj);
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// request cancel
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PacketPassInterface_Sender_RequestCancel(o->output);
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}
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static void output_handler_done (PacketPassInactivityMonitor *o)
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{
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DebugObject_Access(&o->d_obj);
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// output no longer busy, restart timer
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BReactor_SetTimer(o->reactor, &o->timer);
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// call done
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PacketPassInterface_Done(&o->input);
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}
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static void timer_handler (PacketPassInactivityMonitor *o)
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{
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DebugObject_Access(&o->d_obj);
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// restart timer
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BReactor_SetTimer(o->reactor, &o->timer);
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// call handler
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if (o->handler) {
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o->handler(o->user);
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return;
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}
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}
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void PacketPassInactivityMonitor_Init (PacketPassInactivityMonitor *o, PacketPassInterface *output, BReactor *reactor, btime_t interval, PacketPassInactivityMonitor_handler handler, void *user)
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{
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// init arguments
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o->output = output;
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o->reactor = reactor;
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o->handler = handler;
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o->user = user;
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// init input
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PacketPassInterface_Init(&o->input, PacketPassInterface_GetMTU(o->output), (PacketPassInterface_handler_send)input_handler_send, o, BReactor_PendingGroup(o->reactor));
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if (PacketPassInterface_HasCancel(o->output)) {
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PacketPassInterface_EnableCancel(&o->input, (PacketPassInterface_handler_requestcancel)input_handler_requestcancel);
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}
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// init output
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PacketPassInterface_Sender_Init(o->output, (PacketPassInterface_handler_done)output_handler_done, o);
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// init timer
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BTimer_Init(&o->timer, interval, (BTimer_handler)timer_handler, o);
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BReactor_SetTimer(o->reactor, &o->timer);
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DebugObject_Init(&o->d_obj);
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}
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void PacketPassInactivityMonitor_Free (PacketPassInactivityMonitor *o)
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{
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DebugObject_Free(&o->d_obj);
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// free timer
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BReactor_RemoveTimer(o->reactor, &o->timer);
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// free input
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PacketPassInterface_Free(&o->input);
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}
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PacketPassInterface * PacketPassInactivityMonitor_GetInput (PacketPassInactivityMonitor *o)
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{
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DebugObject_Access(&o->d_obj);
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return &o->input;
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}
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void PacketPassInactivityMonitor_SetHandler (PacketPassInactivityMonitor *o, PacketPassInactivityMonitor_handler handler, void *user)
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{
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DebugObject_Access(&o->d_obj);
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o->handler = handler;
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o->user = user;
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}
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void PacketPassInactivityMonitor_Force (PacketPassInactivityMonitor *o)
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{
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DebugObject_Access(&o->d_obj);
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BReactor_SetTimerAfter(o->reactor, &o->timer, 0);
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}
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