view src/os/unix/ngx_darwin_init.c @ 4500:9dfe02dd0f11

Added msleep() on reload to allow new processes to start. This is expected to ensure smoother operation on reload (and with less chance of listen queue overflows). Prodded by Igor Sysoev.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 28 Feb 2012 11:40:18 +0000
parents d620f497c50f
children 15a7deeaa19a
line wrap: on
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#include <ngx_config.h>
#include <ngx_core.h>


char    ngx_darwin_kern_ostype[16];
char    ngx_darwin_kern_osrelease[128];
int     ngx_darwin_hw_ncpu;
int     ngx_darwin_kern_ipc_somaxconn;
u_long  ngx_darwin_net_inet_tcp_sendspace;

ngx_uint_t  ngx_debug_malloc;


static ngx_os_io_t ngx_darwin_io = {
    ngx_unix_recv,
    ngx_readv_chain,
    ngx_udp_unix_recv,
    ngx_unix_send,
#if (NGX_HAVE_SENDFILE)
    ngx_darwin_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_darwin_hw_ncpu,
      sizeof(ngx_darwin_hw_ncpu), 0 },

    { "net.inet.tcp.sendspace",
      &ngx_darwin_net_inet_tcp_sendspace,
      sizeof(ngx_darwin_net_inet_tcp_sendspace), 0 },

    { "kern.ipc.somaxconn",
      &ngx_darwin_kern_ipc_somaxconn,
      sizeof(ngx_darwin_kern_ipc_somaxconn), 0 },

    { NULL, NULL, 0, 0 }
};


void
ngx_debug_init()
{
#if (NGX_DEBUG_MALLOC)

    /*
     * MacOSX 10.6, 10.7:  MallocScribble fills freed memory with 0x55
     *                     and fills allocated memory with 0xAA.
     * MacOSX 10.4, 10.5:  MallocScribble fills freed memory with 0x55,
     *                     MallocPreScribble fills allocated memory with 0xAA.
     * MacOSX 10.3:        MallocScribble fills freed memory with 0x55,
     *                     and no way to fill allocated memory.
     */

    setenv("MallocScribble", "1", 0);

    ngx_debug_malloc = 1;

#else

    if (getenv("MallocScribble")) {
        ngx_debug_malloc = 1;
    }

#endif
}


ngx_int_t
ngx_os_specific_init(ngx_log_t *log)
{
    size_t      size;
    ngx_err_t   err;
    ngx_uint_t  i;

    size = sizeof(ngx_darwin_kern_ostype);
    if (sysctlbyname("kern.ostype", ngx_darwin_kern_ostype, &size, NULL, 0)
        == -1)
    {
        err = ngx_errno;

        if (err != NGX_ENOENT) {

            ngx_log_error(NGX_LOG_ALERT, log, err,
                          "sysctlbyname(kern.ostype) failed");

            if (err != NGX_ENOMEM) {
                return NGX_ERROR;
            }

            ngx_darwin_kern_ostype[size - 1] = '\0';
        }
    }

    size = sizeof(ngx_darwin_kern_osrelease);
    if (sysctlbyname("kern.osrelease", ngx_darwin_kern_osrelease, &size,
                     NULL, 0)
        == -1)
    {
        err = ngx_errno;

        if (err != NGX_ENOENT) {

            ngx_log_error(NGX_LOG_ALERT, log, err,
                          "sysctlbyname(kern.osrelease) failed");

            if (err != NGX_ENOMEM) {
                return NGX_ERROR;
            }

            ngx_darwin_kern_osrelease[size - 1] = '\0';
        }
    }

    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;
    }

    ngx_ncpu = ngx_darwin_hw_ncpu;

    if (ngx_darwin_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_darwin_io;

    return NGX_OK;
}


void
ngx_os_specific_status(ngx_log_t *log)
{
    u_long      value;
    ngx_uint_t  i;

    if (ngx_darwin_kern_ostype[0]) {
        ngx_log_error(NGX_LOG_NOTICE, log, 0, "OS: %s %s",
                      ngx_darwin_kern_ostype, ngx_darwin_kern_osrelease);
    }

    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);
        }
    }
}