Mercurial > hg > nginx
annotate src/os/unix/ngx_freebsd_init.c @ 144:ef8c87afcfc5
nginx-0.0.1-2003-10-12-20:49:16 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Sun, 12 Oct 2003 16:49:16 +0000 |
parents | 5526213be452 |
children | fb48bf4fea1c |
rev | line source |
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1 |
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2 #include <ngx_freebsd_init.h> |
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3 |
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4 |
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5 /* FreeBSD 3.4 at least */ |
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6 char ngx_freebsd_kern_ostype[20]; |
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7 char ngx_freebsd_kern_osrelease[20]; |
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8 int ngx_freebsd_kern_osreldate; |
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9 int ngx_freebsd_hw_ncpu; |
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10 int ngx_freebsd_net_inet_tcp_sendspace; |
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11 int ngx_freebsd_sendfile_nbytes_bug; |
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12 int ngx_freebsd_use_tcp_nopush; |
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14 /* FreeBSD 5.0 */ |
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15 int ngx_freebsd_kern_ipc_zero_copy_send; |
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16 |
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18 ngx_os_io_t ngx_os_io = { |
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19 ngx_unix_recv, |
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20 ngx_readv_chain, |
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21 NULL, |
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22 #if (HAVE_FREEBSD_SENDFILE) |
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23 ngx_freebsd_sendfile_chain, |
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24 NGX_HAVE_SENDFILE|NGX_HAVE_ZEROCOPY |
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25 #else |
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26 ngx_writev_chain, |
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27 NULL |
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28 #endif |
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29 }; |
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30 |
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31 |
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32 typedef struct { |
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33 char *name; |
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34 int *value; |
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35 size_t size; |
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36 } sysctl_t; |
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37 |
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38 |
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39 sysctl_t sysctls[] = { |
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40 {"hw.ncpu", |
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41 &ngx_freebsd_hw_ncpu, |
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42 sizeof(int)}, |
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43 |
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44 {"net.inet.tcp.sendspace", |
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45 &ngx_freebsd_net_inet_tcp_sendspace, |
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46 sizeof(int)}, |
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47 |
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48 /* FreeBSD 5.0 */ |
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49 |
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50 {"kern.ipc.zero_copy.send", |
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51 &ngx_freebsd_kern_ipc_zero_copy_send, |
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52 sizeof(int)}, |
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53 |
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54 {NULL, NULL, 0} |
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55 }; |
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56 |
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57 |
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58 int ngx_os_init(ngx_log_t *log) |
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59 { |
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60 int i, version; |
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61 size_t size; |
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62 ngx_err_t err; |
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63 |
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64 size = sizeof(ngx_freebsd_kern_ostype); |
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65 if (sysctlbyname("kern.ostype", |
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66 ngx_freebsd_kern_ostype, &size, NULL, 0) == -1) { |
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67 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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68 "sysctlbyname(kern.ostype) failed"); |
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69 return NGX_ERROR; |
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70 } |
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71 |
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72 size = sizeof(ngx_freebsd_kern_osrelease); |
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73 if (sysctlbyname("kern.osrelease", |
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74 ngx_freebsd_kern_osrelease, &size, NULL, 0) == -1) { |
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75 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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76 "sysctlbyname(kern.osrelease) failed"); |
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77 return NGX_ERROR; |
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78 } |
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79 |
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80 ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s", |
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81 ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease); |
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82 |
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83 |
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84 size = sizeof(int); |
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85 if (sysctlbyname("kern.osreldate", |
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86 &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) { |
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87 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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88 "sysctlbyname(kern.osreldate) failed"); |
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89 return NGX_ERROR; |
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90 } |
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91 |
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92 version = ngx_freebsd_kern_osreldate; |
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93 |
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94 ngx_log_error(NGX_LOG_INFO, log, 0, |
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95 "kern.osreldate: %d, built on %d", |
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96 version, __FreeBSD_version); |
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97 |
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98 |
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99 #if (HAVE_FREEBSD_SENDFILE) |
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100 |
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101 /* |
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102 * The determination of the sendfile() nbytes bug is complex enough. |
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103 * There're two sendfile() syscalls: a new 393 has no bug while |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
104 * an old 336 has the bug in some versions and has not in others. |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
105 * Besides libc_r wrapper also emulates the bug in some versions. |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
106 * There's no way to say exactly if a given FreeBSD version has the bug. |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
107 * Here is the algorithm that works at least for RELEASEs |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
108 * and for syscalls only (not libc_r wrapper). |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
109 * |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
110 * We detect the new sendfile() version available at the compile time |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
111 * to allow an old binary to run correctly on an updated FreeBSD system. |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
112 */ |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
113 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
114 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \ |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
115 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
116 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
117 /* a new syscall without the bug */ |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
118 |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
119 ngx_freebsd_sendfile_nbytes_bug = 0; |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
120 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
121 #else |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 /* an old syscall that can have the bug */ |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
124 |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
125 ngx_freebsd_sendfile_nbytes_bug = 1; |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
126 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
127 #endif |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 #endif /* HAVE_FREEBSD_SENDFILE */ |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
130 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
132 if ((version < 500000 && version >= 440003) || version >= 500017) { |
143
5526213be452
nginx-0.0.1-2003-10-10-19:10:50 import
Igor Sysoev <igor@sysoev.ru>
parents:
142
diff
changeset
|
133 ngx_freebsd_use_tcp_nopush = 1; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
134 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
135 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
136 |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
137 for (i = 0; sysctls[i].name; i++) { |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
138 *sysctls[i].value = 0; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
139 size = sysctls[i].size; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
140 if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0) |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
141 == -1) { |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
142 err = errno; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
143 if (err != NGX_ENOENT) { |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
144 ngx_log_error(NGX_LOG_ALERT, log, err, |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
145 "sysctlbyname(%s) failed", sysctls[i].name); |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
146 return NGX_ERROR; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
147 } |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
148 |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
149 } else { |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
150 ngx_log_error(NGX_LOG_INFO, log, 0, "%s: %d", |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
151 sysctls[i].name, *sysctls[i].value); |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
152 } |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
153 } |
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
154 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
155 return ngx_posix_init(log); |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
156 } |