Mercurial > hg > nginx-quic
annotate src/os/unix/ngx_posix_init.c @ 6755:e2f13011343e stable-1.10
HTTP/2: fixed the "http request count is zero" alert.
When the stream is terminated the HEADERS frame can still wait in the output
queue. This frame can't be removed and must be sent to the client anyway,
since HTTP/2 uses stateful compression for headers. So in order to postpone
closing and freeing memory of such stream the special close stream handler
is set to the write event. After the HEADERS frame is sent the write event
is called and the stream will be finally closed.
Some events like receiving a RST_STREAM can trigger the read handler of such
stream in closing state and cause unexpected processing that can result in
another attempt to finalize the request. To prevent it the read handler is
now set to ngx_http_empty_handler.
Thanks to Amazon.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Thu, 16 Jun 2016 20:55:11 +0300 |
parents | 8f038068f4bc |
children | 7d4e33092e2a |
rev | line source |
---|---|
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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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
539 | 10 #include <nginx.h> |
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12 |
473 | 13 ngx_int_t ngx_ncpu; |
14 ngx_int_t ngx_max_sockets; | |
15 ngx_uint_t ngx_inherited_nonblocking; | |
16 ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush; | |
449
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17 |
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18 |
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19 struct rlimit rlmt; |
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20 |
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21 |
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22 ngx_os_io_t ngx_os_io = { |
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23 ngx_unix_recv, |
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24 ngx_readv_chain, |
1689 | 25 ngx_udp_unix_recv, |
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26 ngx_unix_send, |
6436 | 27 ngx_udp_unix_send, |
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28 ngx_writev_chain, |
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29 0 |
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30 }; |
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31 |
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32 |
539 | 33 ngx_int_t |
34 ngx_os_init(ngx_log_t *log) | |
455 | 35 { |
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36 ngx_uint_t n; |
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37 |
539 | 38 #if (NGX_HAVE_OS_SPECIFIC_INIT) |
39 if (ngx_os_specific_init(log) != NGX_OK) { | |
40 return NGX_ERROR; | |
41 } | |
42 #endif | |
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43 |
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44 if (ngx_init_setproctitle(log) != NGX_OK) { |
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45 return NGX_ERROR; |
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46 } |
509 | 47 |
346
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48 ngx_pagesize = getpagesize(); |
589 | 49 ngx_cacheline_size = NGX_CPU_CACHE_LINE; |
346
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50 |
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51 for (n = ngx_pagesize; n >>= 1; ngx_pagesize_shift++) { /* void */ } |
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52 |
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53 #if (NGX_HAVE_SC_NPROCESSORS_ONLN) |
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54 if (ngx_ncpu == 0) { |
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55 ngx_ncpu = sysconf(_SC_NPROCESSORS_ONLN); |
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56 } |
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57 #endif |
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58 |
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59 if (ngx_ncpu < 1) { |
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60 ngx_ncpu = 1; |
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61 } |
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62 |
611 | 63 ngx_cpuinfo(); |
64 | |
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65 if (getrlimit(RLIMIT_NOFILE, &rlmt) == -1) { |
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66 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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67 "getrlimit(RLIMIT_NOFILE) failed"); |
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68 return NGX_ERROR; |
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69 } |
577 | 70 |
563 | 71 ngx_max_sockets = (ngx_int_t) rlmt.rlim_cur; |
93
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72 |
3786 | 73 #if (NGX_HAVE_INHERITED_NONBLOCK || NGX_HAVE_ACCEPT4) |
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74 ngx_inherited_nonblocking = 1; |
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75 #else |
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76 ngx_inherited_nonblocking = 0; |
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77 #endif |
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78 |
800 | 79 srandom(ngx_time()); |
80 | |
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81 return NGX_OK; |
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82 } |
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83 |
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84 |
539 | 85 void |
86 ngx_os_status(ngx_log_t *log) | |
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87 { |
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88 ngx_log_error(NGX_LOG_NOTICE, log, 0, NGINX_VER_BUILD); |
541 | 89 |
557 | 90 #ifdef NGX_COMPILER |
91 ngx_log_error(NGX_LOG_NOTICE, log, 0, "built by " NGX_COMPILER); | |
92 #endif | |
93 | |
539 | 94 #if (NGX_HAVE_OS_SPECIFIC_INIT) |
95 ngx_os_specific_status(log); | |
96 #endif | |
97 | |
531 | 98 ngx_log_error(NGX_LOG_NOTICE, log, 0, |
461 | 99 "getrlimit(RLIMIT_NOFILE): %r:%r", |
449
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100 rlmt.rlim_cur, rlmt.rlim_max); |
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101 } |
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102 |
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103 |
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104 #if 0 |
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105 |
539 | 106 ngx_int_t |
107 ngx_posix_post_conf_init(ngx_log_t *log) | |
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108 { |
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109 ngx_fd_t pp[2]; |
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110 |
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111 if (pipe(pp) == -1) { |
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112 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, "pipe() failed"); |
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113 return NGX_ERROR; |
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114 } |
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115 |
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116 if (dup2(pp[1], STDERR_FILENO) == -1) { |
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117 ngx_log_error(NGX_LOG_EMERG, log, errno, "dup2(STDERR) failed"); |
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118 return NGX_ERROR; |
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119 } |
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120 |
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121 if (pp[1] > STDERR_FILENO) { |
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122 if (close(pp[1]) == -1) { |
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123 ngx_log_error(NGX_LOG_EMERG, log, errno, "close() failed"); |
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124 return NGX_ERROR; |
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125 } |
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126 } |
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127 |
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128 return NGX_OK; |
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129 } |
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130 |
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131 #endif |