static char *
ngx_kqueue_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_kqueue_conf_t *kcf = conf;
    ngx_conf_init_uint_value(kcf->changes, 512);
    ngx_conf_init_uint_value(kcf->events, 512);
    return NGX_CONF_OK;
}
Example #2
0
static char *
ngx_epoll_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_epoll_conf_t *epcf = conf;

    ngx_conf_init_uint_value(epcf->events, 512);
    ngx_conf_init_uint_value(epcf->aio_requests, 32);

    return NGX_CONF_OK;
}
static char *
ngx_devpoll_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_devpoll_conf_t *dpcf = conf;

    ngx_conf_init_uint_value(dpcf->changes, 32);
    ngx_conf_init_uint_value(dpcf->events, 32);

    return NGX_CONF_OK;
}
Example #4
0
static char *
ngx_rtsig_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_rtsig_conf_t  *rtscf = conf;

    /* LinuxThreads use the first 3 RT signals */
    ngx_conf_init_uint_value(rtscf->signo, SIGRTMIN + 10);

    ngx_conf_init_uint_value(rtscf->overflow_events, 16);
    ngx_conf_init_uint_value(rtscf->overflow_test, 32);
    ngx_conf_init_uint_value(rtscf->overflow_threshold, 10);

    return NGX_CONF_OK;
}
static char *
ngx_eventport_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_eventport_conf_t *epcf = conf;
    ngx_conf_init_uint_value(epcf->events, 32);
    return NGX_CONF_OK;
}
Example #6
0
static char *
ngx_stream_core_init_main_conf(ngx_conf_t *cf, void *conf)
{
    ngx_stream_core_main_conf_t *cmcf = conf;

    ngx_conf_init_uint_value(cmcf->variables_hash_max_size, 1024);
    ngx_conf_init_uint_value(cmcf->variables_hash_bucket_size, 64);

    cmcf->variables_hash_bucket_size =
               ngx_align(cmcf->variables_hash_bucket_size, ngx_cacheline_size);

    if (cmcf->ncaptures) {
        cmcf->ncaptures = (cmcf->ncaptures + 1) * 3;
    }

    return NGX_CONF_OK;
}
Example #7
0
static char *
ngx_pool_context_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_pool_context_conf_t      *pcf = conf;

    ngx_conf_init_uint_value(pcf->size, cycle->connection_n);

    ngx_pool_context_hash_size = pcf->size;

    ngx_pool_context_hash = ngx_pcalloc(cycle->pool, sizeof(ngx_pool_context_node_t *) * ngx_pool_context_hash_size);

    if (ngx_pool_context_hash == NULL) {
        return NGX_CONF_ERROR;
    }

    return NGX_CONF_OK;
}
static ngx_int_t
ngx_http_upstream_init_keepalive(ngx_conf_t *cf,
    ngx_http_upstream_srv_conf_t *us)
{
    ngx_uint_t                               i;
    ngx_http_upstream_keepalive_srv_conf_t  *kcf;
    ngx_http_upstream_keepalive_cache_t     *cached;

    ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cf->log, 0,
                   "init keepalive");

    kcf = ngx_http_conf_upstream_srv_conf(us,
                                          ngx_http_upstream_keepalive_module);

    ngx_conf_init_msec_value(kcf->timeout, 60000);
    ngx_conf_init_uint_value(kcf->requests, 100);

    if (kcf->original_init_upstream(cf, us) != NGX_OK) {
        return NGX_ERROR;
    }

    kcf->original_init_peer = us->peer.init;

    us->peer.init = ngx_http_upstream_init_keepalive_peer;

    /* allocate cache items and add to free queue */

    cached = ngx_pcalloc(cf->pool,
                sizeof(ngx_http_upstream_keepalive_cache_t) * kcf->max_cached);
    if (cached == NULL) {
        return NGX_ERROR;
    }

    ngx_queue_init(&kcf->cache);
    ngx_queue_init(&kcf->free);

    for (i = 0; i < kcf->max_cached; i++) {
        ngx_queue_insert_head(&kcf->free, &cached[i].queue);
        cached[i].conf = kcf;
    }

    return NGX_OK;
}
Example #9
0
static char *
ngx_event_core_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_event_conf_t  *ecf = conf;

#if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
    int                  fd;
#endif
#if (NGX_HAVE_RTSIG)
    ngx_uint_t           rtsig;
    ngx_core_conf_t     *ccf;
#endif
    ngx_int_t            i;
    ngx_module_t        *module;
    ngx_event_module_t  *event_module;

    module = NULL;

#if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)

    fd = epoll_create(100);

    if (fd != -1) {
        (void) close(fd);
        module = &ngx_epoll_module;

    } else if (ngx_errno != NGX_ENOSYS) {
        module = &ngx_epoll_module;
    }

#endif

#if (NGX_HAVE_RTSIG)

    if (module == NULL) {
        module = &ngx_rtsig_module;
        rtsig = 1;

    } else {
        rtsig = 0;
    }

#endif

#if (NGX_HAVE_DEVPOLL)

    module = &ngx_devpoll_module;

#endif

#if (NGX_HAVE_KQUEUE)

    module = &ngx_kqueue_module;

#endif

#if (NGX_HAVE_SELECT)

    if (module == NULL) {
        module = &ngx_select_module;
    }

#endif

    if (module == NULL) {
        for (i = 0; ngx_modules[i]; i++) {

            if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
                continue;
            }

            event_module = ngx_modules[i]->ctx;

            if (ngx_strcmp(event_module->name->data, event_core_name.data) == 0)
            {
                continue;
            }

            module = ngx_modules[i];
            break;
        }
    }

    if (module == NULL) {
        ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
        return NGX_CONF_ERROR;
    }

    ngx_conf_init_uint_value(ecf->connections, DEFAULT_CONNECTIONS);
    cycle->connection_n = ecf->connections;

    ngx_conf_init_uint_value(ecf->use, module->ctx_index);

    event_module = module->ctx;
    ngx_conf_init_ptr_value(ecf->name, event_module->name->data);

    ngx_conf_init_value(ecf->multi_accept, 0);
    ngx_conf_init_value(ecf->accept_mutex, 1);
    ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);


#if (NGX_HAVE_RTSIG)

    if (!rtsig) {
        return NGX_CONF_OK;
    }

    if (ecf->accept_mutex) {
        return NGX_CONF_OK;
    }

    ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);

    if (ccf->worker_processes == 0) {
        return NGX_CONF_OK;
    }

    ngx_log_error(NGX_LOG_EMERG, cycle->log, 0,
                  "the \"rtsig\" method requires \"accept_mutex\" to be on");

    return NGX_CONF_ERROR;

#else

    return NGX_CONF_OK;

#endif
}
Example #10
0
// 所有模块配置解析完毕后,对配置进行初始化
// 如果有的指令没有写,就要给正确的默认值
// 模块默认使用epoll
// 默认不接受多个请求,也就是一次只accept一个连接
// 默认使用负载均衡锁
static char *
ngx_event_core_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_event_conf_t  *ecf = conf;

#if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
    int                  fd;
#endif

    // rtsig在nginx 1.9.x已经删除

    ngx_int_t            i;
    ngx_module_t        *module;
    ngx_event_module_t  *event_module;

    module = NULL;

// 测试epoll是否可用
#if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)

    fd = epoll_create(100);

    // epoll调用可用,那么模块默认使用epoll
    if (fd != -1) {
        (void) close(fd);
        // epoll调用可用,那么模块默认使用epoll
        module = &ngx_epoll_module;

    } else if (ngx_errno != NGX_ENOSYS) {
        // epoll调用可用,那么模块默认使用epoll
        module = &ngx_epoll_module;
    }

#endif

    // rtsig在nginx 1.9.x已经删除

#if (NGX_HAVE_DEVPOLL) && !(NGX_TEST_BUILD_DEVPOLL)

    module = &ngx_devpoll_module;

#endif

#if (NGX_HAVE_KQUEUE)

    module = &ngx_kqueue_module;

#endif

    // 如果epoll不可用,那么默认使用select
#if (NGX_HAVE_SELECT)

    if (module == NULL) {
        module = &ngx_select_module;
    }

#endif

    // 还没有决定默认的事件模型
    if (module == NULL) {
        // 遍历所有的事件模块
        for (i = 0; cycle->modules[i]; i++) {

            if (cycle->modules[i]->type != NGX_EVENT_MODULE) {
                continue;
            }

            event_module = cycle->modules[i]->ctx;

            // 跳过event_core模块
            if (ngx_strcmp(event_module->name->data, event_core_name.data) == 0)
            {
                continue;
            }

            // 使用数组里的第一个事件模块
            module = cycle->modules[i];
            break;
        }
    }

    // 最后还没有决定默认的事件模型,出错
    if (module == NULL) {
        ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
        return NGX_CONF_ERROR;
    }

    // nginx每个进程可使用的连接数量,即cycle里的连接池大小
    ngx_conf_init_uint_value(ecf->connections, DEFAULT_CONNECTIONS);

    // 如果没有使用worker_connections指令,在这里设置
    cycle->connection_n = ecf->connections;

    // 决定使用的事件模型,之前的module只作为默认值,如果已经使用了use则无效
    ngx_conf_init_uint_value(ecf->use, module->ctx_index);

    // 初始化使用的事件模块的名字
    event_module = module->ctx;
    ngx_conf_init_ptr_value(ecf->name, event_module->name->data);

    // 默认不接受多个请求,也就是一次只accept一个连接
    ngx_conf_init_value(ecf->multi_accept, 0);

    // 默认使用负载均衡锁
    ngx_conf_init_value(ecf->accept_mutex, 1);

    // 默认负载均衡锁的等待时间是500毫秒
    ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);

    return NGX_CONF_OK;
}
static char *
ngx_event_core_init_conf(ngx_cycle_t *cycle, void *conf)
{
    ngx_event_conf_t  *ecf = conf;

#if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)
    int                  fd;
#endif
    ngx_int_t            i;
    ngx_module_t        *module;
    ngx_event_module_t  *event_module;

    module = NULL;

#if (NGX_HAVE_EPOLL) && !(NGX_TEST_BUILD_EPOLL)

    fd = epoll_create(100);

    if (fd != -1) {
        (void) close(fd);
        module = &ngx_epoll_module;

    } else if (ngx_errno != NGX_ENOSYS) {
        module = &ngx_epoll_module;
    }

#endif

#if (NGX_HAVE_DEVPOLL)

    module = &ngx_devpoll_module;

#endif

#if (NGX_HAVE_KQUEUE)

    module = &ngx_kqueue_module;

#endif

#if (NGX_HAVE_SELECT)

    if (module == NULL) {
        module = &ngx_select_module;
    }

#endif

    //ngx_event_core_module后的第一个NGX_EVENT_MODULE也就是ngx_epoll_module默认作为第一个event模块
    if (module == NULL) {
        for (i = 0; ngx_modules[i]; i++) {

            if (ngx_modules[i]->type != NGX_EVENT_MODULE) {
                continue;
            }

            event_module = ngx_modules[i]->ctx;

            if (ngx_strcmp(event_module->name->data, event_core_name.data) == 0) //不能为ngx_event_core_module
            {
                continue;
            }

            module = ngx_modules[i];
            break;
        }
    }

    if (module == NULL) {
        ngx_log_error(NGX_LOG_EMERG, cycle->log, 0, "no events module found");
        return NGX_CONF_ERROR;
    }

    ngx_conf_init_uint_value(ecf->connections, DEFAULT_CONNECTIONS);
    cycle->connection_n = ecf->connections;

    ngx_conf_init_uint_value(ecf->use, module->ctx_index);

    event_module = module->ctx;
    ngx_conf_init_ptr_value(ecf->name, event_module->name->data);

    ngx_conf_init_value(ecf->multi_accept, 0);
    ngx_conf_init_value(ecf->accept_mutex, 1);
    ngx_conf_init_msec_value(ecf->accept_mutex_delay, 500);

    return NGX_CONF_OK;
}