Mercurial > hg > nginx-quic
annotate src/os/win32/ngx_service.c @ 7971:0a04e5e4c40b
Large block sizes on Linux are now ignored (ticket #1168).
NFS on Linux is known to report wsize as a block size (in both f_bsize
and f_frsize, both in statfs() and statvfs()). On the other hand,
typical file system block sizes on Linux (ext2/ext3/ext4, XFS) are limited
to pagesize. (With FAT, block sizes can be at least up to 512k in
extreme cases, but this doesn't really matter, see below.)
To avoid too aggressive cache clearing on NFS volumes on Linux, block
sizes larger than pagesize are now ignored.
Note that it is safe to ignore large block sizes. Since 3899:e7cd13b7f759
(1.0.1) cache size is calculated based on fstat() st_blocks, and rounding
to file system block size is preserved mostly for Windows.
Note well that on other OSes valid block sizes seen are at least up
to 65536. In particular, UFS on FreeBSD is known to work well with block
and fragment sizes set to 65536.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 22 Jun 2020 18:02:58 +0300 |
parents | a1caf3989b49 |
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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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6 |
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8 |
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9 #define NGX_SERVICE_CONTROL_SHUTDOWN 128 |
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10 #define NGX_SERVICE_CONTROL_REOPEN 129 |
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11 |
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12 |
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13 SERVICE_TABLE_ENTRY st[] = { |
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14 { "nginx", service_main }, |
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15 { NULL, NULL } |
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16 }; |
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17 |
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18 |
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19 ngx_int_t |
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20 ngx_service(ngx_log_t *log) |
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21 { |
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22 /* primary thread */ |
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23 |
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24 /* StartServiceCtrlDispatcher() should be called within 30 seconds */ |
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25 |
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26 if (StartServiceCtrlDispatcher(st) == 0) { |
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27 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
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28 "StartServiceCtrlDispatcher() failed"); |
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29 return NGX_ERROR; |
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30 } |
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31 |
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32 return NGX_OK; |
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33 } |
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34 |
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35 |
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36 void |
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37 service_main(u_int argc, char **argv) |
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38 { |
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39 SERVICE_STATUS status; |
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40 SERVICE_STATUS_HANDLE service; |
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41 |
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42 /* thread spawned by SCM */ |
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43 |
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44 service = RegisterServiceCtrlHandlerEx("nginx", service_handler, ctx); |
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45 if (service == INVALID_HANDLE_VALUE) { |
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46 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
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47 "RegisterServiceCtrlHandlerEx() failed"); |
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48 return; |
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49 } |
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50 |
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51 status.dwServiceType = SERVICE_WIN32_OWN_PROCESS; |
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52 status.dwCurrentState = SERVICE_START_PENDING; |
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53 status.dwControlsAccepted = SERVICE_ACCEPT_STOP |
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54 |SERVICE_ACCEPT_PARAMCHANGE; |
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55 status.dwWin32ExitCode = NO_ERROR; |
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56 status.dwServiceSpecificExitCode = 0; |
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57 status.dwCheckPoint = 1; |
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58 status.dwWaitHint = 2000; |
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59 |
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60 /* SetServiceStatus() should be called within 80 seconds */ |
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61 |
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62 if (SetServiceStatus(service, &status) == 0) { |
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63 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
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64 "SetServiceStatus() failed"); |
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65 return; |
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66 } |
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67 |
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68 /* init */ |
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69 |
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70 status.dwCurrentState = SERVICE_RUNNING; |
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71 status.dwCheckPoint = 0; |
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72 status.dwWaitHint = 0; |
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73 |
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74 if (SetServiceStatus(service, &status) == 0) { |
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75 ngx_log_error(NGX_LOG_EMERG, log, ngx_errno, |
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76 "SetServiceStatus() failed"); |
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77 return; |
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78 } |
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79 |
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80 /* call master or worker loop */ |
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81 |
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82 /* |
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83 * master should use event notification and look status |
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84 * single should use iocp to get notifications from service handler |
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85 */ |
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86 |
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87 } |
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88 |
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89 |
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90 u_int |
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91 service_handler(u_int control, u_int type, void *data, void *ctx) |
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92 { |
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93 /* primary thread */ |
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94 |
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95 switch (control) { |
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96 |
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97 case SERVICE_CONTROL_INTERROGATE: |
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98 status = NGX_IOCP_INTERROGATE; |
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99 break; |
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100 |
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101 case SERVICE_CONTROL_STOP: |
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102 status = NGX_IOCP_STOP; |
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103 break; |
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104 |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
105 case SERVICE_CONTROL_PARAMCHANGE: |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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106 status = NGX_IOCP_RECONFIGURE; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
107 break; |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
108 |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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109 case NGX_SERVICE_CONTROL_SHUTDOWN: |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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110 status = NGX_IOCP_REOPEN; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
111 break; |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
112 |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
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113 case NGX_SERVICE_CONTROL_REOPEN: |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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114 status = NGX_IOCP_REOPEN; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
115 break; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
116 |
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nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
117 default: |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
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118 return ERROR_CALL_NOT_IMPLEMENTED; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
119 } |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
120 |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 if (ngx_single) { |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 if (PostQueuedCompletionStatus(iocp, ... status, ...) == 0) { |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 err = ngx_errno; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 ngx_log_error(NGX_LOG_ALERT, log, err, |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
125 "PostQueuedCompletionStatus() failed"); |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 return err; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 } |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 } else { |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 Event |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 } |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
132 |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
133 return NO_ERROR; |
4f81b931e9ff
nginx-0.0.1-2004-01-08-11:47:17 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
134 } |