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comparison src/event/quic/ngx_event_quic_frames.c @ 8949:2e22110828dd quic

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QUIC: removed ngx_quic_copy_chain(). The function is unused.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 16 Dec 2021 17:07:11 +0300
parents 19e063e955bf
children fb811b6c76ee
comparison
equal deleted inserted replaced
8948:19e063e955bf 8949:2e22110828dd
429 return out; 429 return out;
430 } 430 }
431 431
432 432
433 ngx_chain_t * 433 ngx_chain_t *
434 ngx_quic_copy_chain(ngx_connection_t *c, ngx_chain_t *in, size_t limit)
435 {
436 size_t n;
437 ngx_buf_t *b;
438 ngx_chain_t *cl, *out, **ll;
439
440 out = NULL;
441 ll = &out;
442
443 while (in) {
444 if (!ngx_buf_in_memory(in->buf) || ngx_buf_size(in->buf) == 0) {
445 in = in->next;
446 continue;
447 }
448
449 cl = ngx_quic_alloc_chain(c);
450 if (cl == NULL) {
451 return NGX_CHAIN_ERROR;
452 }
453
454 *ll = cl;
455 ll = &cl->next;
456
457 b = cl->buf;
458
459 while (in && b->last != b->end) {
460
461 n = ngx_min(in->buf->last - in->buf->pos, b->end - b->last);
462
463 if (limit > 0 && n > limit) {
464 n = limit;
465 }
466
467 b->last = ngx_cpymem(b->last, in->buf->pos, n);
468
469 in->buf->pos += n;
470 if (in->buf->pos == in->buf->last) {
471 in = in->next;
472 }
473
474 if (limit > 0) {
475 if (limit == n) {
476 goto done;
477 }
478
479 limit -= n;
480 }
481 }
482 }
483
484 done:
485
486 *ll = NULL;
487
488 return out;
489 }
490
491
492 ngx_chain_t *
493 ngx_quic_write_chain(ngx_connection_t *c, ngx_chain_t **chain, ngx_chain_t *in, 434 ngx_quic_write_chain(ngx_connection_t *c, ngx_chain_t **chain, ngx_chain_t *in,
494 off_t limit, off_t offset) 435 off_t limit, off_t offset)
495 { 436 {
496 off_t n; 437 off_t n;
497 u_char *p; 438 u_char *p;