Mercurial > hg > nginx-quic
annotate src/core/ngx_slab.h @ 8456:c72d8839f427
Mail: fixed SMTP pipelining to send the response immediately.
Previously, if there were some pipelined SMTP data in the buffer when
a proxied connection with the backend was established, nginx called
ngx_mail_proxy_handler() to send these data, and not tried to send the
response to the last command. In most cases, this response was later sent
along with the response to the pipelined command, but if for some reason
client decides to wait for the response before finishing the next command
this might result in a connection hang.
Fix is to always call ngx_mail_proxy_handler() to send the response, and
additionally post an event to send the pipelined data if needed.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Wed, 19 May 2021 03:13:12 +0300 |
parents | 69f9ee0342db |
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rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #ifndef _NGX_SLAB_H_INCLUDED_ |
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9 #define _NGX_SLAB_H_INCLUDED_ |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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15 |
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16 typedef struct ngx_slab_page_s ngx_slab_page_t; |
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18 struct ngx_slab_page_s { |
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19 uintptr_t slab; |
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20 ngx_slab_page_t *next; |
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21 uintptr_t prev; |
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22 }; |
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23 |
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24 |
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25 typedef struct { |
6828 | 26 ngx_uint_t total; |
27 ngx_uint_t used; | |
28 | |
29 ngx_uint_t reqs; | |
30 ngx_uint_t fails; | |
31 } ngx_slab_stat_t; | |
32 | |
33 | |
34 typedef struct { | |
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35 ngx_shmtx_sh_t lock; |
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36 |
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37 size_t min_size; |
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38 size_t min_shift; |
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39 |
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40 ngx_slab_page_t *pages; |
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41 ngx_slab_page_t *last; |
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42 ngx_slab_page_t free; |
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43 |
6828 | 44 ngx_slab_stat_t *stats; |
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45 ngx_uint_t pfree; |
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47 u_char *start; |
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48 u_char *end; |
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49 |
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50 ngx_shmtx_t mutex; |
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51 |
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52 u_char *log_ctx; |
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53 u_char zero; |
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54 |
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55 unsigned log_nomem:1; |
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56 |
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57 void *data; |
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58 void *addr; |
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59 } ngx_slab_pool_t; |
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60 |
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61 |
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62 void ngx_slab_sizes_init(void); |
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63 void ngx_slab_init(ngx_slab_pool_t *pool); |
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64 void *ngx_slab_alloc(ngx_slab_pool_t *pool, size_t size); |
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65 void *ngx_slab_alloc_locked(ngx_slab_pool_t *pool, size_t size); |
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66 void *ngx_slab_calloc(ngx_slab_pool_t *pool, size_t size); |
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67 void *ngx_slab_calloc_locked(ngx_slab_pool_t *pool, size_t size); |
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68 void ngx_slab_free(ngx_slab_pool_t *pool, void *p); |
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69 void ngx_slab_free_locked(ngx_slab_pool_t *pool, void *p); |
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70 |
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71 |
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72 #endif /* _NGX_SLAB_H_INCLUDED_ */ |