Mercurial > hg > nginx
annotate src/os/unix/ngx_freebsd_init.c @ 195:8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 25 Nov 2003 20:44:56 +0000 |
parents | 4c698194c56d |
children | 11fbd0fc041d |
rev | line source |
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1 |
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2 #include <ngx_config.h> |
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3 #include <ngx_core.h> |
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4 |
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6 /* FreeBSD 3.4 at least */ |
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7 char ngx_freebsd_kern_ostype[20]; |
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8 char ngx_freebsd_kern_osrelease[20]; |
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9 int ngx_freebsd_kern_osreldate; |
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10 int ngx_freebsd_hw_ncpu; |
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11 int ngx_freebsd_net_inet_tcp_sendspace; |
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12 int ngx_freebsd_sendfile_nbytes_bug; |
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13 int ngx_freebsd_use_tcp_nopush; |
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15 /* FreeBSD 5.0 */ |
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16 int ngx_freebsd_kern_ipc_zero_copy_send; |
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17 |
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19 ngx_os_io_t ngx_os_io = { |
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20 ngx_unix_recv, |
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21 ngx_readv_chain, |
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22 NULL, |
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23 #if (HAVE_SENDFILE) |
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24 ngx_freebsd_sendfile_chain, |
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25 NGX_HAVE_SENDFILE |
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26 #else |
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27 ngx_writev_chain, |
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28 0 |
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29 #endif |
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30 }; |
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31 |
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32 |
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33 typedef struct { |
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34 char *name; |
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35 int *value; |
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36 size_t size; |
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37 } sysctl_t; |
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38 |
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39 |
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40 sysctl_t sysctls[] = { |
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41 {"hw.ncpu", |
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42 &ngx_freebsd_hw_ncpu, |
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43 sizeof(int)}, |
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44 |
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45 {"net.inet.tcp.sendspace", |
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46 &ngx_freebsd_net_inet_tcp_sendspace, |
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47 sizeof(int)}, |
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48 |
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49 /* FreeBSD 5.0 */ |
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50 |
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51 {"kern.ipc.zero_copy.send", |
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52 &ngx_freebsd_kern_ipc_zero_copy_send, |
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53 sizeof(int)}, |
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54 |
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55 {NULL, NULL, 0} |
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56 }; |
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57 |
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58 |
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59 int ngx_os_init(ngx_log_t *log) |
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60 { |
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61 int i, version; |
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62 size_t size; |
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63 ngx_err_t err; |
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64 |
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65 size = sizeof(ngx_freebsd_kern_ostype); |
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66 if (sysctlbyname("kern.ostype", |
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67 ngx_freebsd_kern_ostype, &size, NULL, 0) == -1) { |
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68 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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69 "sysctlbyname(kern.ostype) failed"); |
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70 return NGX_ERROR; |
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71 } |
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72 |
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73 size = sizeof(ngx_freebsd_kern_osrelease); |
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74 if (sysctlbyname("kern.osrelease", |
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75 ngx_freebsd_kern_osrelease, &size, NULL, 0) == -1) { |
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76 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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77 "sysctlbyname(kern.osrelease) failed"); |
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78 return NGX_ERROR; |
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79 } |
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80 |
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81 ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s", |
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82 ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease); |
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83 |
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84 |
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85 size = sizeof(int); |
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86 if (sysctlbyname("kern.osreldate", |
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87 &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) { |
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88 ngx_log_error(NGX_LOG_ALERT, log, errno, |
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89 "sysctlbyname(kern.osreldate) failed"); |
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90 return NGX_ERROR; |
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91 } |
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92 |
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93 version = ngx_freebsd_kern_osreldate; |
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94 |
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95 ngx_log_error(NGX_LOG_INFO, log, 0, |
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96 "kern.osreldate: %d, built on %d", |
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97 version, __FreeBSD_version); |
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98 |
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99 |
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100 #if (HAVE_SENDFILE) |
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101 |
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102 /* |
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103 * The determination of the sendfile() nbytes bug is complex enough. |
152
fb48bf4fea1c
nginx-0.0.1-2003-10-21-11:47:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
144
diff
changeset
|
104 * There are two sendfile() syscalls: a new 393 has no bug while |
142
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
105 * 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
|
106 * 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
|
107 * 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
|
108 * 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
|
109 * 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
|
110 * |
cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
101
diff
changeset
|
111 * 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
|
112 * 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
|
113 */ |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
114 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
115 #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
|
116 || __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
|
117 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
118 /* 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
|
119 |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
120 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
|
121 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
122 #else |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
123 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
124 /* 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
|
125 |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
126 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
|
127 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
128 #endif |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
129 |
195
8dee38ea9117
nginx-0.0.1-2003-11-25-23:44:56 import
Igor Sysoev <igor@sysoev.ru>
parents:
183
diff
changeset
|
130 #endif /* HAVE_SENDFILE */ |
86
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
131 |
3973260705cc
nginx-0.0.1-2003-05-12-19:52:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
132 |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
133 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
|
134 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
|
135 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
136 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
97
diff
changeset
|
137 |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
138 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
|
139 *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
|
140 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
|
141 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
|
142 == -1) { |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
143 err = errno; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
144 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
|
145 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
|
146 "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
|
147 return NGX_ERROR; |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
148 } |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
149 |
97
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
150 } else { |
70d2345a903f
nginx-0.0.1-2003-05-29-17:02:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
94
diff
changeset
|
151 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
|
152 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
|
153 } |
88
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
154 } |
674d333f4296
nginx-0.0.1-2003-05-14-21:13:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
86
diff
changeset
|
155 |
93
738fe44c70d5
nginx-0.0.1-2003-05-21-17:28:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
91
diff
changeset
|
156 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
|
157 } |