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annotate src/os/unix/ngx_freebsd_init.c @ 86:3973260705cc

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nginx-0.0.1-2003-05-12-19:52:24 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 12 May 2003 15:52:24 +0000
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children 674d333f4296
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1
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2 #include <ngx_freebsd_init.h>
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5 int freebsd_kern_osreldate;
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6 int freebsd_hw_ncpu;
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8 int freebsd_sendfile_nbytes_bug;
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11 int ngx_os_init(ngx_log_t *log)
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12 {
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13 size_t size;
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15 size = 4;
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16 if (sysctlbyname("kern.osreldate",
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17 &freebsd_kern_osreldate, &size, NULL, 0) == -1) {
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18 ngx_log_error(NGX_LOG_ALERT, log, errno,
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19 "sysctlbyname(kern.osreldate) failed");
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20 return NGX_ERROR;
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21 }
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23 ngx_log_error(NGX_LOG_INFO, log, 0,
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24 "kern.osreldate: %d, built on %d",
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25 freebsd_kern_osreldate, __FreeBSD_version);
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28 #if HAVE_FREEBSD_SENDFILE
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29
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30 /* The determination of the sendfile() nbytes bug is complex enough.
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31 There're two sendfile() syscalls: a new 393 has no bug while
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32 an old 336 has the bug in some versions and has not in others.
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33 libc_r wrapper also emulates the bug in some versions.
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34 There's no way to say exactly if a given FreeBSD version has bug.
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35 Here is the algorithm that work at least for RELEASEs
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36 and for syscalls only (not libc_r wrapper). */
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37
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38 /* detect was the new sendfile() version available at the compile time
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39 to allow an old binary to run correctly on an updated FreeBSD system. */
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40
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41 #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \
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42 || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039
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43
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44 /* a new syscall without the bug */
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45 freebsd_sendfile_nbytes_bug = 0;
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46
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47 #else
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48
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49 /* an old syscall that can have the bug */
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50 freebsd_sendfile_nbytes_bug = 1;
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51
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52 #endif
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53
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54 #endif /* HAVE_FREEBSD_SENDFILE */
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57 size = 4;
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58 if (sysctlbyname("hw.ncpu", &freebsd_hw_ncpu, &size, NULL, 0) == -1) {
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59 ngx_log_error(NGX_LOG_ALERT, log, errno,
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60 "sysctlbyname(hw.ncpu) failed");
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61 return NGX_ERROR;
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62 }
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64 ngx_log_error(NGX_LOG_INFO, log, 0, "hw.ncpu: %d", freebsd_hw_ncpu);
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65
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66 return NGX_OK;
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67 }