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void ngx_chain_update_chains(ngx_pool_t *p, ngx_chain_t **free, ngx_chain_t **busy, ngx_chain_t **out, ngx_buf_tag_t tag) { ngx_chain_t *cl; if (*out) { if (*busy == NULL) { *busy = *out;
} else { for (cl = *busy; cl->next; cl = cl->next) { }
cl->next = *out; }
*out = NULL; }
while (*busy) { cl = *busy;
if (cl->buf->tag != tag) { *busy = cl->next; ngx_free_chain(p, cl); continue; } if (ngx_buf_size(cl->buf) != 0) { break; } cl->buf->pos = cl->buf->start; cl->buf->last = cl->buf->start;
*busy = cl->next; cl->next = *free; *free = cl; } }
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