83 lines
1.4 KiB
C
83 lines
1.4 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#include <nxt_main.h>
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nxt_uint_t
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nxt_recvbuf_mem_coalesce(nxt_recvbuf_coalesce_t *rb)
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{
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u_char *last;
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size_t size, total;
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nxt_int_t n;
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nxt_buf_t *b;
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total = 0;
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last = NULL;
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n = -1;
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for (b = rb->buf; b != NULL; b = b->next) {
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nxt_prefetch(b->next);
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size = b->mem.end - b->mem.free;
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if (b->mem.free != last) {
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if (++n >= rb->nmax) {
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goto done;
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}
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nxt_iobuf_set(&rb->iobuf[n], b->mem.free, size);
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} else {
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nxt_iobuf_add(&rb->iobuf[n], size);
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}
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nxt_thread_log_debug("recvbuf: %ui, %p, %uz", n,
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nxt_iobuf_data(&rb->iobuf[n]),
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nxt_iobuf_size(&rb->iobuf[n]));
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total += size;
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last = b->mem.end;
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}
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n++;
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done:
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rb->size = total;
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return n;
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}
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void
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nxt_recvbuf_update(nxt_buf_t *b, size_t sent)
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{
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size_t size;
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while (b != NULL && sent != 0) {
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nxt_prefetch(b->next);
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if (!nxt_buf_is_sync(b)) {
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size = b->mem.end - b->mem.free;
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if (sent < size) {
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b->mem.free += sent;
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return;
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}
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b->mem.free = b->mem.end;
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sent -= size;
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}
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b = b->next;
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}
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}
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