Cross Reference: /bind-9.11.3/lib/isc/entropy.c

Lines Matching defs:sq
190 samplequeue_release(isc_entropy_t *ent, sample_queue_t *sq) {
191 	REQUIRE(sq->samples != NULL);
192 	REQUIRE(sq->extra != NULL);
194 	isc_mem_put(ent->mctx, sq->samples, RND_EVENTQSIZE * 4);
195 	isc_mem_put(ent->mctx, sq->extra, RND_EVENTQSIZE * 4);
196 	sq->samples = NULL;
197 	sq->extra = NULL;
201 samplesource_allocate(isc_entropy_t *ent, sample_queue_t *sq) {
202 	sq->samples = isc_mem_get(ent->mctx, RND_EVENTQSIZE * 4);
203 	if (sq->samples == NULL)
206 	sq->extra = isc_mem_get(ent->mctx, RND_EVENTQSIZE * 4);
207 	if (sq->extra == NULL) {
208 		isc_mem_put(ent->mctx, sq->samples, RND_EVENTQSIZE * 4);
209 		sq->samples = NULL;
213 	sq->nsamples = 0;
396 estimate_entropy(sample_queue_t *sq, isc_uint32_t t) {
405 	if (t < sq->last_time)
406 		delta = UINT_MAX - sq->last_time + t;
408 		delta = sq->last_time - t;
416 	delta2 = sq->last_delta - delta;
420 	delta3 = sq->last_delta2 - delta2;
424 	sq->last_time = t;
425 	sq->last_delta = delta;
426 	sq->last_delta2 = delta2;
443 crunchsamples(isc_entropy_t *ent, sample_queue_t *sq) {
447 	if (sq->nsamples < 6)
451 	sq->last_time = sq->samples[0];
452 	sq->last_delta = 0;
453 	sq->last_delta2 = 0;
460 		(void)estimate_entropy(sq, sq->samples[ns]);
462 	for (ns = 4; ns < sq->nsamples; ns++)
463 		added += estimate_entropy(sq, sq->samples[ns]);
465 	entropypool_adddata(ent, sq->samples, sq->nsamples * 4, added);
466 	entropypool_adddata(ent, sq->extra, sq->nsamples * 4, 0);
473 		sq->samples[ns] = sq->samples[sq->nsamples - 4 + ns];
474 		sq->extra[ns] = sq->extra[sq->nsamples - 4 + ns];
477 	sq->nsamples = 4;
958 	sample_queue_t *sq;
971 	sq = &source->sources.sample.samplequeue;
972 	result = samplesource_allocate(ent, sq);
1012 addsample(sample_queue_t *sq, isc_uint32_t sample, isc_uint32_t extra) {
1013 	if (sq->nsamples >= RND_EVENTQSIZE)
1016 	sq->samples[sq->nsamples] = sample;
1017 	sq->extra[sq->nsamples] = extra;
1018 	sq->nsamples++;
1020 	if (sq->nsamples >= RND_EVENTQSIZE)
1031 	sample_queue_t *sq;
1041 	sq = &source->sources.sample.samplequeue;
1042 	result = addsample(sq, sample, extra);
1044 		entropy = crunchsamples(ent, sq);
1057 	sample_queue_t *sq;
1063 	sq = &source->sources.callback.samplequeue;
1064 	result = addsample(sq, sample, extra);