70 lines
936 B
C
70 lines
936 B
C
/*
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inet/generic/event.c
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Created: April 1995 by Philip Homburg <philip@cs.vu.nl>
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Implementation of an event queue.
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Copyright 1995 Philip Homburg
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*/
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#include "inet.h"
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#include "assert.h"
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#include "event.h"
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THIS_FILE
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event_t *ev_head;
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static event_t *ev_tail;
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void ev_init(ev)
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event_t *ev;
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{
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ev->ev_func= 0;
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ev->ev_next= NULL;
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}
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void ev_enqueue(ev, func, ev_arg)
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event_t *ev;
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ev_func_t func;
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ev_arg_t ev_arg;
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{
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assert(ev->ev_func == 0);
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ev->ev_func= func;
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ev->ev_arg= ev_arg;
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ev->ev_next= NULL;
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if (ev_head == NULL)
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ev_head= ev;
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else
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ev_tail->ev_next= ev;
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ev_tail= ev;
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}
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void ev_process()
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{
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ev_func_t func;
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event_t *curr;
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while (ev_head)
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{
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curr= ev_head;
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ev_head= curr->ev_next;
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func= curr->ev_func;
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curr->ev_func= 0;
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assert(func != 0);
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func(curr, curr->ev_arg);
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}
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}
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int ev_in_queue(ev)
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event_t *ev;
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{
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return ev->ev_func != 0;
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}
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/*
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* $PchId: event.c,v 1.4 1995/11/21 06:45:27 philip Exp $
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*/
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