Mercurial > hg > nginx-quic
view src/os/unix/ngx_freebsd_init.c @ 173:4fb2a2cff023
nginx-0.0.1-2003-11-04-20:09:19 import
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 04 Nov 2003 17:09:19 +0000 |
parents | fb48bf4fea1c |
children | 4c698194c56d |
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#include <ngx_freebsd_init.h> /* FreeBSD 3.4 at least */ char ngx_freebsd_kern_ostype[20]; char ngx_freebsd_kern_osrelease[20]; int ngx_freebsd_kern_osreldate; int ngx_freebsd_hw_ncpu; int ngx_freebsd_net_inet_tcp_sendspace; int ngx_freebsd_sendfile_nbytes_bug; int ngx_freebsd_use_tcp_nopush; /* FreeBSD 5.0 */ int ngx_freebsd_kern_ipc_zero_copy_send; ngx_os_io_t ngx_os_io = { ngx_unix_recv, ngx_readv_chain, NULL, #if (HAVE_FREEBSD_SENDFILE) ngx_freebsd_sendfile_chain, NGX_HAVE_SENDFILE|NGX_HAVE_ZEROCOPY #else ngx_writev_chain, NULL #endif }; typedef struct { char *name; int *value; size_t size; } sysctl_t; sysctl_t sysctls[] = { {"hw.ncpu", &ngx_freebsd_hw_ncpu, sizeof(int)}, {"net.inet.tcp.sendspace", &ngx_freebsd_net_inet_tcp_sendspace, sizeof(int)}, /* FreeBSD 5.0 */ {"kern.ipc.zero_copy.send", &ngx_freebsd_kern_ipc_zero_copy_send, sizeof(int)}, {NULL, NULL, 0} }; int ngx_os_init(ngx_log_t *log) { int i, version; size_t size; ngx_err_t err; size = sizeof(ngx_freebsd_kern_ostype); if (sysctlbyname("kern.ostype", ngx_freebsd_kern_ostype, &size, NULL, 0) == -1) { ngx_log_error(NGX_LOG_ALERT, log, errno, "sysctlbyname(kern.ostype) failed"); return NGX_ERROR; } size = sizeof(ngx_freebsd_kern_osrelease); if (sysctlbyname("kern.osrelease", ngx_freebsd_kern_osrelease, &size, NULL, 0) == -1) { ngx_log_error(NGX_LOG_ALERT, log, errno, "sysctlbyname(kern.osrelease) failed"); return NGX_ERROR; } ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s", ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease); size = sizeof(int); if (sysctlbyname("kern.osreldate", &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) { ngx_log_error(NGX_LOG_ALERT, log, errno, "sysctlbyname(kern.osreldate) failed"); return NGX_ERROR; } version = ngx_freebsd_kern_osreldate; ngx_log_error(NGX_LOG_INFO, log, 0, "kern.osreldate: %d, built on %d", version, __FreeBSD_version); #if (HAVE_FREEBSD_SENDFILE) /* * The determination of the sendfile() nbytes bug is complex enough. * There are two sendfile() syscalls: a new 393 has no bug while * an old 336 has the bug in some versions and has not in others. * Besides libc_r wrapper also emulates the bug in some versions. * There's no way to say exactly if a given FreeBSD version has the bug. * Here is the algorithm that works at least for RELEASEs * and for syscalls only (not libc_r wrapper). * * We detect the new sendfile() version available at the compile time * to allow an old binary to run correctly on an updated FreeBSD system. */ #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \ || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039 /* a new syscall without the bug */ ngx_freebsd_sendfile_nbytes_bug = 0; #else /* an old syscall that can have the bug */ ngx_freebsd_sendfile_nbytes_bug = 1; #endif #endif /* HAVE_FREEBSD_SENDFILE */ if ((version < 500000 && version >= 440003) || version >= 500017) { ngx_freebsd_use_tcp_nopush = 1; } for (i = 0; sysctls[i].name; i++) { *sysctls[i].value = 0; size = sysctls[i].size; if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0) == -1) { err = errno; if (err != NGX_ENOENT) { ngx_log_error(NGX_LOG_ALERT, log, err, "sysctlbyname(%s) failed", sysctls[i].name); return NGX_ERROR; } } else { ngx_log_error(NGX_LOG_INFO, log, 0, "%s: %d", sysctls[i].name, *sysctls[i].value); } } return ngx_posix_init(log); }