Mercurial > hg > nginx
view src/os/unix/ngx_freebsd_init.c @ 6339:67422a0a8ed2 stable-1.8
Events: made a failure to create a notification channel non-fatal.
This may happen if eventfd() returns ENOSYS, notably seen on CentOS 5.4.
Such a failure will now just disable the notification mechanism and let
the callers cope with it, instead of failing to start worker processes.
If thread pools are not configured, this can safely be ignored.
author | Ruslan Ermilov <ru@nginx.com> |
---|---|
date | Wed, 06 May 2015 17:04:00 +0300 |
parents | 15a7deeaa19a |
children | 8f038068f4bc |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #include <ngx_config.h> #include <ngx_core.h> /* FreeBSD 3.0 at least */ char ngx_freebsd_kern_ostype[16]; char ngx_freebsd_kern_osrelease[128]; int ngx_freebsd_kern_osreldate; int ngx_freebsd_hw_ncpu; int ngx_freebsd_kern_ipc_somaxconn; u_long ngx_freebsd_net_inet_tcp_sendspace; /* FreeBSD 4.9 */ int ngx_freebsd_machdep_hlt_logical_cpus; ngx_uint_t ngx_freebsd_sendfile_nbytes_bug; ngx_uint_t ngx_freebsd_use_tcp_nopush; ngx_uint_t ngx_debug_malloc; static ngx_os_io_t ngx_freebsd_io = { ngx_unix_recv, ngx_readv_chain, ngx_udp_unix_recv, ngx_unix_send, #if (NGX_HAVE_SENDFILE) ngx_freebsd_sendfile_chain, NGX_IO_SENDFILE #else ngx_writev_chain, 0 #endif }; typedef struct { char *name; void *value; size_t size; ngx_uint_t exists; } sysctl_t; sysctl_t sysctls[] = { { "hw.ncpu", &ngx_freebsd_hw_ncpu, sizeof(ngx_freebsd_hw_ncpu), 0 }, { "machdep.hlt_logical_cpus", &ngx_freebsd_machdep_hlt_logical_cpus, sizeof(ngx_freebsd_machdep_hlt_logical_cpus), 0 }, { "net.inet.tcp.sendspace", &ngx_freebsd_net_inet_tcp_sendspace, sizeof(ngx_freebsd_net_inet_tcp_sendspace), 0 }, { "kern.ipc.somaxconn", &ngx_freebsd_kern_ipc_somaxconn, sizeof(ngx_freebsd_kern_ipc_somaxconn), 0 }, { NULL, NULL, 0, 0 } }; void ngx_debug_init(void) { #if (NGX_DEBUG_MALLOC) #if __FreeBSD_version >= 500014 && __FreeBSD_version < 1000011 _malloc_options = "J"; #elif __FreeBSD_version < 500014 malloc_options = "J"; #endif ngx_debug_malloc = 1; #else char *mo; mo = getenv("MALLOC_OPTIONS"); if (mo && ngx_strchr(mo, 'J')) { ngx_debug_malloc = 1; } #endif } ngx_int_t ngx_os_specific_init(ngx_log_t *log) { int version; size_t size; ngx_err_t err; ngx_uint_t i; 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, ngx_errno, "sysctlbyname(kern.ostype) failed"); if (ngx_errno != NGX_ENOMEM) { return NGX_ERROR; } ngx_freebsd_kern_ostype[size - 1] = '\0'; } 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, ngx_errno, "sysctlbyname(kern.osrelease) failed"); if (ngx_errno != NGX_ENOMEM) { return NGX_ERROR; } ngx_freebsd_kern_osrelease[size - 1] = '\0'; } size = sizeof(int); if (sysctlbyname("kern.osreldate", &ngx_freebsd_kern_osreldate, &size, NULL, 0) == -1) { ngx_log_error(NGX_LOG_ALERT, log, ngx_errno, "sysctlbyname(kern.osreldate) failed"); return NGX_ERROR; } version = ngx_freebsd_kern_osreldate; #if (NGX_HAVE_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 is no way to say exactly if syscall #336 in FreeBSD circa 4.6 * has the bug. We use the algorithm that is correct at least for * RELEASEs and for syscalls only (not libc_r wrapper). * * 4.6.1-RELEASE and below have the bug * 4.6.2-RELEASE and above have the new syscall * * We detect the new sendfile() syscall 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 may have the bug */ ngx_freebsd_sendfile_nbytes_bug = 1; #endif #endif /* NGX_HAVE_SENDFILE */ if ((version < 500000 && version >= 440003) || version >= 500017) { ngx_freebsd_use_tcp_nopush = 1; } for (i = 0; sysctls[i].name; i++) { size = sysctls[i].size; if (sysctlbyname(sysctls[i].name, sysctls[i].value, &size, NULL, 0) == 0) { sysctls[i].exists = 1; continue; } err = ngx_errno; if (err == NGX_ENOENT) { continue; } ngx_log_error(NGX_LOG_ALERT, log, err, "sysctlbyname(%s) failed", sysctls[i].name); return NGX_ERROR; } if (ngx_freebsd_machdep_hlt_logical_cpus) { ngx_ncpu = ngx_freebsd_hw_ncpu / 2; } else { ngx_ncpu = ngx_freebsd_hw_ncpu; } if (version < 600008 && ngx_freebsd_kern_ipc_somaxconn > 32767) { ngx_log_error(NGX_LOG_ALERT, log, 0, "sysctl kern.ipc.somaxconn must be less than 32768"); return NGX_ERROR; } ngx_tcp_nodelay_and_tcp_nopush = 1; ngx_os_io = ngx_freebsd_io; return NGX_OK; } void ngx_os_specific_status(ngx_log_t *log) { u_long value; ngx_uint_t i; ngx_log_error(NGX_LOG_NOTICE, log, 0, "OS: %s %s", ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease); #ifdef __DragonFly_version ngx_log_error(NGX_LOG_NOTICE, log, 0, "kern.osreldate: %d, built on %d", ngx_freebsd_kern_osreldate, __DragonFly_version); #else ngx_log_error(NGX_LOG_NOTICE, log, 0, "kern.osreldate: %d, built on %d", ngx_freebsd_kern_osreldate, __FreeBSD_version); #endif for (i = 0; sysctls[i].name; i++) { if (sysctls[i].exists) { if (sysctls[i].size == sizeof(long)) { value = *(long *) sysctls[i].value; } else { value = *(int *) sysctls[i].value; } ngx_log_error(NGX_LOG_NOTICE, log, 0, "%s: %l", sysctls[i].name, value); } } }