深入解读Nginx 0.1.0版本的HTTP模块初始化源代码(第五部分)

static ngx_int_t ngx_http_access_init(ngx_cycle_t *cycle)
{
    ngx_http_handler_pt        *h;
    ngx_http_core_main_conf_t  *cmcf;
    // 取出http_core_module的配置结构体
    cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
    // 设置在NGX_HTTP_ACCESS_PHASE阶段的回调
    h = ngx_push_array(&cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers);
    if (h == NULL) {
        return NGX_ERROR;
    }

    *h = ngx_http_access_handler;

    return NGX_OK;
}

static ngx_int_t ngx_http_charset_filter_init(ngx_cycle_t *cycle)
{
    ngx_http_next_header_filter = ngx_http_top_header_filter;
    ngx_http_top_header_filter = ngx_http_charset_header_filter;

    ngx_http_next_body_filter = ngx_http_top_body_filter;
    ngx_http_top_body_filter = ngx_http_charset_body_filter;

    return NGX_OK;
}