Mercurial > hg > nginx
annotate src/event/ngx_event_pipe.h @ 6642:72282dd5884e
HTTP/2: flushing of the SSL buffer in transition to the idle state.
It fixes potential connection leak if some unsent data was left in the SSL
buffer. Particularly, that could happen when a client canceled the stream
after the HEADERS frame has already been created. In this case no other
frames might be produced and the HEADERS frame alone didn't flush the buffer.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Tue, 19 Jul 2016 20:34:17 +0300 |
parents | fc72784b1f52 |
children | adc2414856b1 |
rev | line source |
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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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6 |
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8 #ifndef _NGX_EVENT_PIPE_H_INCLUDED_ |
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9 #define _NGX_EVENT_PIPE_H_INCLUDED_ |
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10 |
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12 #include <ngx_config.h> |
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13 #include <ngx_core.h> |
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14 #include <ngx_event.h> |
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15 |
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17 typedef struct ngx_event_pipe_s ngx_event_pipe_t; |
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18 |
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19 typedef ngx_int_t (*ngx_event_pipe_input_filter_pt)(ngx_event_pipe_t *p, |
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20 ngx_buf_t *buf); |
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21 typedef ngx_int_t (*ngx_event_pipe_output_filter_pt)(void *data, |
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22 ngx_chain_t *chain); |
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23 |
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24 |
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25 struct ngx_event_pipe_s { |
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26 ngx_connection_t *upstream; |
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27 ngx_connection_t *downstream; |
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28 |
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29 ngx_chain_t *free_raw_bufs; |
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30 ngx_chain_t *in; |
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31 ngx_chain_t **last_in; |
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32 |
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33 ngx_chain_t *writing; |
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34 |
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35 ngx_chain_t *out; |
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36 ngx_chain_t *free; |
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37 ngx_chain_t *busy; |
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38 |
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39 /* |
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40 * the input filter i.e. that moves HTTP/1.1 chunks |
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41 * from the raw bufs to an incoming chain |
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42 */ |
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43 |
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44 ngx_event_pipe_input_filter_pt input_filter; |
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45 void *input_ctx; |
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46 |
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47 ngx_event_pipe_output_filter_pt output_filter; |
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48 void *output_ctx; |
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49 |
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50 #if (NGX_THREADS) |
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51 ngx_int_t (*thread_handler)(ngx_thread_task_t *task, |
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52 ngx_file_t *file); |
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53 void *thread_ctx; |
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54 ngx_thread_task_t *thread_task; |
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55 #endif |
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56 |
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57 unsigned read:1; |
1565 | 58 unsigned cacheable:1; |
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59 unsigned single_buf:1; |
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60 unsigned free_bufs:1; |
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61 unsigned upstream_done:1; |
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62 unsigned upstream_error:1; |
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63 unsigned upstream_eof:1; |
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64 unsigned upstream_blocked:1; |
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65 unsigned downstream_done:1; |
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66 unsigned downstream_error:1; |
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67 unsigned cyclic_temp_file:1; |
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68 unsigned aio:1; |
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69 |
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70 ngx_int_t allocated; |
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71 ngx_bufs_t bufs; |
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72 ngx_buf_tag_t tag; |
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73 |
473 | 74 ssize_t busy_size; |
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75 |
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76 off_t read_length; |
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77 off_t length; |
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78 |
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79 off_t max_temp_file_size; |
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80 ssize_t temp_file_write_size; |
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81 |
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82 ngx_msec_t read_timeout; |
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83 ngx_msec_t send_timeout; |
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84 ssize_t send_lowat; |
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85 |
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86 ngx_pool_t *pool; |
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87 ngx_log_t *log; |
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88 |
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89 ngx_chain_t *preread_bufs; |
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90 size_t preread_size; |
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91 ngx_buf_t *buf_to_file; |
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92 |
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93 size_t limit_rate; |
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94 time_t start_sec; |
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95 |
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96 ngx_temp_file_t *temp_file; |
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97 |
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98 /* STUB */ int num; |
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99 }; |
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100 |
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101 |
1599 | 102 ngx_int_t ngx_event_pipe(ngx_event_pipe_t *p, ngx_int_t do_write); |
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103 ngx_int_t ngx_event_pipe_copy_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf); |
483 | 104 ngx_int_t ngx_event_pipe_add_free_buf(ngx_event_pipe_t *p, ngx_buf_t *b); |
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107 #endif /* _NGX_EVENT_PIPE_H_INCLUDED_ */ |