From c5aeb0dc4228c6396f35395194e0ec9cc91519c4 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Tue, 10 Nov 2015 20:55:47 +0100 Subject: Implement generic task queue to handle handshakes and maintenance --- src/task.c | 78 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/task.c (limited to 'src/task.c') diff --git a/src/task.c b/src/task.c new file mode 100644 index 0000000..44a8ebf --- /dev/null +++ b/src/task.c @@ -0,0 +1,78 @@ +/* + Copyright (c) 2012-2015, Matthias Schiffer + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +/** + \file + + Task queue +*/ + +#include "task.h" +#include "peer.h" + + +/** Performs periodic maintenance tasks */ +static inline void maintenance(void) { + fastd_socket_handle_binds(); + fastd_peer_maintenance(); + + fastd_task_reschedule_relative(&ctx.next_maintenance, MAINTENANCE_INTERVAL); +} + +static void handle_task(void) { + fastd_task_t *task = container_of(ctx.task_queue, fastd_task_t, entry); + fastd_pqueue_remove(ctx.task_queue); + + switch (task->type) { + case TASK_TYPE_MAINTENANCE: + maintenance(); + break; + + case TASK_TYPE_HANDSHAKE: + fastd_peer_handle_handshake_task(task); + break; + + default: + exit_bug("unknown task type"); + } +} + +void fastd_task_handle(void) { + while (ctx.task_queue && fastd_timed_out(ctx.task_queue->value)) + handle_task(); +} + +void fastd_task_reschedule(fastd_task_t *task, fastd_timeout_t timeout) { + task->entry.value = timeout; + fastd_pqueue_insert(&ctx.task_queue, &task->entry); +} + +bool fastd_task_timeout(fastd_timeout_t *timeout) { + if (!ctx.task_queue) + return false; + + *timeout = ctx.task_queue->value; + return true; +} -- cgit v1.2.3