BadVPN – Blame information for rev 1
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| Rev | Author | Line No. | Line |
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| 1 | office | 1 | /** |
| 2 | * @file PacketPassInactivityMonitor.c |
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| 3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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| 4 | * |
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| 5 | * @section LICENSE |
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| 6 | * |
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| 7 | * Redistribution and use in source and binary forms, with or without |
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| 8 | * modification, are permitted provided that the following conditions are met: |
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| 9 | * 1. Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * 3. Neither the name of the author nor the |
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| 15 | * names of its contributors may be used to endorse or promote products |
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| 16 | * derived from this software without specific prior written permission. |
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| 17 | * |
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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| 19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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| 20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| 21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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| 22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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| 23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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| 24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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| 25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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| 27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 28 | */ |
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| 29 | |||
| 30 | #include "PacketPassInactivityMonitor.h" |
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| 31 | |||
| 32 | static void input_handler_send (PacketPassInactivityMonitor *o, uint8_t *data, int data_len) |
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| 33 | { |
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| 34 | DebugObject_Access(&o->d_obj); |
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| 35 | |||
| 36 | // schedule send |
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| 37 | PacketPassInterface_Sender_Send(o->output, data, data_len); |
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| 38 | |||
| 39 | // stop timer |
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| 40 | BReactor_RemoveTimer(o->reactor, &o->timer); |
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| 41 | } |
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| 42 | |||
| 43 | static void input_handler_requestcancel (PacketPassInactivityMonitor *o) |
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| 44 | { |
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| 45 | DebugObject_Access(&o->d_obj); |
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| 46 | |||
| 47 | // request cancel |
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| 48 | PacketPassInterface_Sender_RequestCancel(o->output); |
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| 49 | } |
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| 50 | |||
| 51 | static void output_handler_done (PacketPassInactivityMonitor *o) |
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| 52 | { |
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| 53 | DebugObject_Access(&o->d_obj); |
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| 54 | |||
| 55 | // output no longer busy, restart timer |
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| 56 | BReactor_SetTimer(o->reactor, &o->timer); |
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| 57 | |||
| 58 | // call done |
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| 59 | PacketPassInterface_Done(&o->input); |
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| 60 | } |
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| 61 | |||
| 62 | static void timer_handler (PacketPassInactivityMonitor *o) |
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| 63 | { |
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| 64 | DebugObject_Access(&o->d_obj); |
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| 65 | |||
| 66 | // restart timer |
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| 67 | BReactor_SetTimer(o->reactor, &o->timer); |
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| 68 | |||
| 69 | // call handler |
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| 70 | if (o->handler) { |
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| 71 | o->handler(o->user); |
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| 72 | return; |
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| 73 | } |
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| 74 | } |
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| 75 | |||
| 76 | void PacketPassInactivityMonitor_Init (PacketPassInactivityMonitor *o, PacketPassInterface *output, BReactor *reactor, btime_t interval, PacketPassInactivityMonitor_handler handler, void *user) |
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| 77 | { |
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| 78 | // init arguments |
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| 79 | o->output = output; |
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| 80 | o->reactor = reactor; |
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| 81 | o->handler = handler; |
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| 82 | o->user = user; |
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| 83 | |||
| 84 | // init input |
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| 85 | PacketPassInterface_Init(&o->input, PacketPassInterface_GetMTU(o->output), (PacketPassInterface_handler_send)input_handler_send, o, BReactor_PendingGroup(o->reactor)); |
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| 86 | if (PacketPassInterface_HasCancel(o->output)) { |
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| 87 | PacketPassInterface_EnableCancel(&o->input, (PacketPassInterface_handler_requestcancel)input_handler_requestcancel); |
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| 88 | } |
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| 89 | |||
| 90 | // init output |
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| 91 | PacketPassInterface_Sender_Init(o->output, (PacketPassInterface_handler_done)output_handler_done, o); |
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| 92 | |||
| 93 | // init timer |
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| 94 | BTimer_Init(&o->timer, interval, (BTimer_handler)timer_handler, o); |
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| 95 | BReactor_SetTimer(o->reactor, &o->timer); |
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| 96 | |||
| 97 | DebugObject_Init(&o->d_obj); |
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| 98 | } |
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| 99 | |||
| 100 | void PacketPassInactivityMonitor_Free (PacketPassInactivityMonitor *o) |
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| 101 | { |
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| 102 | DebugObject_Free(&o->d_obj); |
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| 103 | |||
| 104 | // free timer |
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| 105 | BReactor_RemoveTimer(o->reactor, &o->timer); |
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| 106 | |||
| 107 | // free input |
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| 108 | PacketPassInterface_Free(&o->input); |
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| 109 | } |
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| 110 | |||
| 111 | PacketPassInterface * PacketPassInactivityMonitor_GetInput (PacketPassInactivityMonitor *o) |
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| 112 | { |
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| 113 | DebugObject_Access(&o->d_obj); |
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| 114 | |||
| 115 | return &o->input; |
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| 116 | } |
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| 117 | |||
| 118 | void PacketPassInactivityMonitor_SetHandler (PacketPassInactivityMonitor *o, PacketPassInactivityMonitor_handler handler, void *user) |
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| 119 | { |
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| 120 | DebugObject_Access(&o->d_obj); |
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| 121 | |||
| 122 | o->handler = handler; |
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| 123 | o->user = user; |
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| 124 | } |
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| 125 | |||
| 126 | void PacketPassInactivityMonitor_Force (PacketPassInactivityMonitor *o) |
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| 127 | { |
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| 128 | DebugObject_Access(&o->d_obj); |
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| 129 | |||
| 130 | BReactor_SetTimerAfter(o->reactor, &o->timer, 0); |
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| 131 | } |