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#include "fault.h"
#include "munit.h"
void FaultInit(struct Fault *f)
{
f->countdown = -1;
f->n = -1;
f->paused = false;
}
bool FaultTick(struct Fault *f)
{
if (MUNIT_UNLIKELY(f->paused)) {
return false;
}
/* If the initial delay parameter was set to -1, then never fail. This is
* the most common case. */
if (MUNIT_LIKELY(f->countdown < 0)) {
return false;
}
/* If we did not yet reach 'delay' ticks, then just decrease the countdown.
*/
if (f->countdown > 0) {
f->countdown--;
return false;
}
munit_assert_int(f->countdown, ==, 0);
/* We reached 'delay' ticks, let's see how many times we have to trigger the
* fault, if any. */
if (f->n < 0) {
/* Trigger the fault forever. */
return true;
}
if (f->n > 0) {
/* Trigger the fault at least this time. */
f->n--;
return true;
}
munit_assert_int(f->n, ==, 0);
/* We reached 'repeat' ticks, let's stop triggering the fault. */
f->countdown--;
return false;
}
void FaultConfig(struct Fault *f, int delay, int repeat)
{
f->countdown = delay;
f->n = repeat;
}
void FaultPause(struct Fault *f)
{
f->paused = true;
}
void FaultResume(struct Fault *f)
{
f->paused = false;
}
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