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comparison src/os/unix/ngx_freebsd_init.c @ 0:f0b350454894 NGINX_0_1_0

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nginx 0.1.0 *) The first public version.
author Igor Sysoev <http://sysoev.ru>
date Mon, 04 Oct 2004 00:00:00 +0400
parents
children cc9f381affaa
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-1:000000000000 0:f0b350454894
1
2 /*
3 * Copyright (C) Igor Sysoev
4 */
5
6
7 #include <ngx_config.h>
8 #include <ngx_core.h>
9
10
11 /* FreeBSD 3.0 at least */
12 char ngx_freebsd_kern_ostype[20];
13 char ngx_freebsd_kern_osrelease[20];
14 int ngx_freebsd_kern_osreldate;
15 int ngx_freebsd_hw_ncpu;
16 int ngx_freebsd_net_inet_tcp_sendspace;
17
18 /* FreeBSD 4.9 */
19 int ngx_freebsd_machdep_hlt_logical_cpus;
20
21 /* FreeBSD 5.0 */
22 int ngx_freebsd_kern_ipc_zero_copy_send;
23
24
25 ngx_uint_t ngx_freebsd_sendfile_nbytes_bug;
26 ngx_uint_t ngx_freebsd_use_tcp_nopush;
27
28
29 ngx_os_io_t ngx_os_io = {
30 ngx_unix_recv,
31 ngx_readv_chain,
32 ngx_unix_send,
33 #if (HAVE_SENDFILE)
34 ngx_freebsd_sendfile_chain,
35 NGX_IO_SENDFILE
36 #else
37 ngx_writev_chain,
38 0
39 #endif
40 };
41
42
43 typedef struct {
44 char *name;
45 int *value;
46 size_t size;
47 ngx_uint_t exists;
48 } sysctl_t;
49
50
51 sysctl_t sysctls[] = {
52 { "hw.ncpu",
53 &ngx_freebsd_hw_ncpu,
54 sizeof(int), 0 },
55
56 { "machdep.hlt_logical_cpus",
57 &ngx_freebsd_machdep_hlt_logical_cpus,
58 sizeof(int), 0 },
59
60 { "net.inet.tcp.sendspace",
61 &ngx_freebsd_net_inet_tcp_sendspace,
62 sizeof(int), 0 },
63
64 { "kern.ipc.zero_copy.send",
65 &ngx_freebsd_kern_ipc_zero_copy_send,
66 sizeof(int), 0 },
67
68 { NULL, NULL, 0, 0 }
69 };
70
71
72 void ngx_debug_init()
73 {
74 #if (NGX_DEBUG && !NGX_NO_DEBUG_MALLOC)
75
76 #if __FreeBSD_version >= 500014
77 _malloc_options = "J";
78 #else
79 malloc_options = "J";
80 #endif
81
82 #endif
83 }
84
85
86 ngx_int_t ngx_os_init(ngx_log_t *log)
87 {
88 int version;
89 size_t size;
90 ngx_err_t err;
91 ngx_uint_t i;
92
93 size = sizeof(ngx_freebsd_kern_ostype);
94 if (sysctlbyname("kern.ostype",
95 ngx_freebsd_kern_ostype, &size, NULL, 0) == -1) {
96 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
97 "sysctlbyname(kern.ostype) failed");
98 return NGX_ERROR;
99 }
100
101 size = sizeof(ngx_freebsd_kern_osrelease);
102 if (sysctlbyname("kern.osrelease",
103 ngx_freebsd_kern_osrelease, &size, NULL, 0) == -1) {
104 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
105 "sysctlbyname(kern.osrelease) failed");
106 return NGX_ERROR;
107 }
108
109
110 size = sizeof(int);
111 if (sysctlbyname("kern.osreldate",
112 &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) {
113 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
114 "sysctlbyname(kern.osreldate) failed");
115 return NGX_ERROR;
116 }
117
118 version = ngx_freebsd_kern_osreldate;
119
120
121 #if (HAVE_SENDFILE)
122
123 /*
124 * The determination of the sendfile() "nbytes bug" is complex enough.
125 * There are two sendfile() syscalls: a new #393 has no bug while
126 * an old #336 has the bug in some versions and has not in others.
127 * Besides libc_r wrapper also emulates the bug in some versions.
128 * There is no way to say exactly if syscall #336 in FreeBSD circa 4.6
129 * has the bug. We use the algorithm that is correct at least for
130 * RELEASEs and for syscalls only (not libc_r wrapper).
131 *
132 * 4.6.1-RELEASE and below have the bug
133 * 4.6.2-RELEASE and above have the new syscall
134 *
135 * We detect the new sendfile() syscall available at the compile time
136 * to allow an old binary to run correctly on an updated FreeBSD system.
137 */
138
139 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \
140 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039
141
142 /* a new syscall without the bug */
143
144 ngx_freebsd_sendfile_nbytes_bug = 0;
145
146 #else
147
148 /* an old syscall that may have the bug */
149
150 ngx_freebsd_sendfile_nbytes_bug = 1;
151
152 #endif
153
154 #endif /* HAVE_SENDFILE */
155
156
157 if ((version < 500000 && version >= 440003) || version >= 500017) {
158 ngx_freebsd_use_tcp_nopush = 1;
159 }
160
161
162 for (i = 0; sysctls[i].name; i++) {
163 *sysctls[i].value = 0;
164 size = sysctls[i].size;
165
166 if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0)
167 == 0)
168 {
169 sysctls[i].exists = 1;
170 continue;
171 }
172
173 err = ngx_errno;
174
175 if (err == NGX_ENOENT) {
176 continue;
177 }
178
179 #if 0
180 if (sysctls[i].value == &ngx_freebsd_machdep_hlt_logical_cpus) {
181 continue;
182 }
183 #endif
184
185 ngx_log_error(NGX_LOG_ALERT, log, err,
186 "sysctlbyname(%s) failed", sysctls[i].name);
187 return NGX_ERROR;
188 }
189
190 if (ngx_freebsd_machdep_hlt_logical_cpus) {
191 ngx_ncpu = ngx_freebsd_hw_ncpu / 2;
192 } else {
193 ngx_ncpu = ngx_freebsd_hw_ncpu;
194 }
195
196 return ngx_posix_init(log);
197 }
198
199
200 void ngx_os_status(ngx_log_t *log)
201 {
202 ngx_uint_t i;
203
204 ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s",
205 ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease);
206
207 #ifdef __DragonFly_version
208 ngx_log_error(NGX_LOG_INFO, log, 0,
209 "kern.osreldate: %d, built on %d",
210 ngx_freebsd_kern_osreldate, __DragonFly_version);
211 #else
212 ngx_log_error(NGX_LOG_INFO, log, 0,
213 "kern.osreldate: %d, built on %d",
214 ngx_freebsd_kern_osreldate, __FreeBSD_version);
215 #endif
216
217 for (i = 0; sysctls[i].name; i++) {
218 if (sysctls[i].exists) {
219 ngx_log_error(NGX_LOG_INFO, log, 0, "%s: %d",
220 sysctls[i].name, *sysctls[i].value);
221 }
222 }
223
224 ngx_posix_status(log);
225 }