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comparison src/core/ngx_buf.c @ 4114:5db098f97e0e

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API change: ngx_chain_update_chains() now requires pool. The ngx_chain_update_chains() needs pool to free chain links used for buffers with non-matching tags. Providing one helps to reduce memory consumption for long-lived requests.
author Maxim Dounin <mdounin@mdounin.ru>
date Thu, 15 Sep 2011 16:03:17 +0000
parents cc13ff6d5c07
children d620f497c50f
comparison
equal deleted inserted replaced
4113:a28ba1cdec27 4114:5db098f97e0e
178 return cl; 178 return cl;
179 } 179 }
180 180
181 181
182 void 182 void
183 ngx_chain_update_chains(ngx_chain_t **free, ngx_chain_t **busy, 183 ngx_chain_update_chains(ngx_pool_t *p, ngx_chain_t **free, ngx_chain_t **busy,
184 ngx_chain_t **out, ngx_buf_tag_t tag) 184 ngx_chain_t **out, ngx_buf_tag_t tag)
185 { 185 {
186 ngx_chain_t *cl; 186 ngx_chain_t *cl;
187 187
188 if (*busy == NULL) { 188 if (*busy == NULL) {
195 } 195 }
196 196
197 *out = NULL; 197 *out = NULL;
198 198
199 while (*busy) { 199 while (*busy) {
200 if (ngx_buf_size((*busy)->buf) != 0) { 200 cl = *busy;
201
202 if (ngx_buf_size(cl->buf) != 0) {
201 break; 203 break;
202 } 204 }
203 205
204 if ((*busy)->buf->tag != tag) { 206 if (cl->buf->tag != tag) {
205 *busy = (*busy)->next; 207 *busy = cl->next;
208 ngx_free_chain(p, cl);
206 continue; 209 continue;
207 } 210 }
208 211
209 (*busy)->buf->pos = (*busy)->buf->start; 212 cl->buf->pos = cl->buf->start;
210 (*busy)->buf->last = (*busy)->buf->start; 213 cl->buf->last = cl->buf->start;
211 214
212 cl = *busy;
213 *busy = cl->next; 215 *busy = cl->next;
214 cl->next = *free; 216 cl->next = *free;
215 *free = cl; 217 *free = cl;
216 } 218 }
217 } 219 }