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// $Id: polling.c,v 1.1.1.1 2013/12/11 20:49:20 bcbrock Exp $
// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/lib/polling.c,v $
//-----------------------------------------------------------------------------
// *! (C) Copyright International Business Machines Corp. 2013
// *! All Rights Reserved -- Property of IBM
// *! *** IBM Confidential ***
//-----------------------------------------------------------------------------
/// \file polling.c
/// \brief Library APIs for polling
#include "polling.h"
int
polling(int* o_rc,
int (*i_condition)(void* io_arg, int* o_satisfied),
void* io_arg,
SsxInterval i_timeout,
SsxInterval i_sleep)
{
SsxTimebase start;
int rc, pollRc, timed_out, done;
if (SSX_ERROR_CHECK_API) {
SSX_ERROR_IF((i_condition == 0), POLLING_ERROR);
}
start = ssx_timebase_get();
timed_out = 0;
do {
pollRc = i_condition(io_arg, &done);
if (pollRc) {
rc = POLLING_CONDITION;
break;
}
if (done) {
rc = 0;
break;
}
if (timed_out) {
rc = POLLING_TIMEOUT;
break;
}
if (i_sleep != 0) {
rc = ssx_sleep(i_sleep);
if (rc) {
break;
}
}
timed_out =
((i_timeout != SSX_WAIT_FOREVER) &&
((ssx_timebase_get() - start) >= i_timeout));
} while (1);
if (o_rc) {
*o_rc = pollRc;
}
return rc;
}
void
busy_wait(SsxInterval i_interval)
{
SsxTimebase start;
start = ssx_timebase_get();
while ((ssx_timebase_get() - start) < i_interval);
}
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