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/*
* Copyright (C) Igor Sysoev
*/
#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_net_inet_tcp_sendspace;
/* FreeBSD 4.9 */
int ngx_freebsd_machdep_hlt_logical_cpus;
/* FreeBSD 5.0 */
int ngx_freebsd_kern_ipc_zero_copy_send;
ngx_uint_t ngx_freebsd_sendfile_nbytes_bug;
ngx_uint_t ngx_freebsd_use_tcp_nopush;
ngx_os_io_t ngx_os_io = {
ngx_unix_recv,
ngx_readv_chain,
ngx_unix_send,
#if (NGX_HAVE_SENDFILE)
ngx_freebsd_sendfile_chain,
NGX_IO_SENDFILE
#else
ngx_writev_chain,
0
#endif
};
typedef struct {
char *name;
int *value;
size_t size;
ngx_uint_t exists;
} sysctl_t;
sysctl_t sysctls[] = {
{ "hw.ncpu",
&ngx_freebsd_hw_ncpu,
sizeof(int), 0 },
{ "machdep.hlt_logical_cpus",
&ngx_freebsd_machdep_hlt_logical_cpus,
sizeof(int), 0 },
{ "net.inet.tcp.sendspace",
&ngx_freebsd_net_inet_tcp_sendspace,
sizeof(int), 0 },
{ "kern.ipc.zero_copy.send",
&ngx_freebsd_kern_ipc_zero_copy_send,
sizeof(int), 0 },
{ NULL, NULL, 0, 0 }
};
void ngx_debug_init()
{
#if (NGX_DEBUG && !NGX_NO_DEBUG_MALLOC)
#if __FreeBSD_version >= 500014
_malloc_options = "J";
#else
malloc_options = "J";
#endif
#endif
}
ngx_int_t ngx_os_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++) {
*sysctls[i].value = 0;
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;
}
#if 0
if (sysctls[i].value == &ngx_freebsd_machdep_hlt_logical_cpus) {
continue;
}
#endif
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;
}
ngx_tcp_nodelay_and_tcp_nopush = 1;
return ngx_posix_init(log);
}
void ngx_os_status(ngx_log_t *log)
{
ngx_uint_t i;
ngx_log_error(NGX_LOG_INFO, log, 0, "OS: %s %s",
ngx_freebsd_kern_ostype, ngx_freebsd_kern_osrelease);
#ifdef __DragonFly_version
ngx_log_error(NGX_LOG_INFO, log, 0,
"kern.osreldate: %d, built on %d",
ngx_freebsd_kern_osreldate, __DragonFly_version);
#else
ngx_log_error(NGX_LOG_INFO, 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) {
ngx_log_error(NGX_LOG_INFO, log, 0, "%s: %d",
sysctls[i].name, *sysctls[i].value);
}
}
ngx_posix_status(log);
}
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