Apache 模块开发总结

因为项目的原因需要使用Apache 模块开发(Apache + C++)，现在总结如下:
modules.c文件结构-->modules.so

module AP_MODULE_DECLARE_DATA get_service_module;

配置文件的内存结构
typedef struct
{
    const char* dataFolder;
}Service_Conf_Rec;

static void *create_services_config(apr_pool_t *p, char* d)
{
    Service_Conf_Rec *conf = (Service_Conf_Rec *)apr_pcalloc(p, sizeof(*conf));
    if(conf == NULL) return NULL;
    return conf;
}

//读取DataFolder的参数的具体函数
static const char * readDataFolder(cmd_parms *cmd, void *mconfig, const char*name)
{
    Service_Conf_Rec *conf = (Service_Conf_Rec*)mconfig;
    conf->dataFolder = apr_pstrdup(cmd->pool, name);
    return NULL;
}

static const command_rec services_conf[] =
{
    AP_INIT_TAKE1("DataFolder", readDataFolder, NULL, OR_FILEINFO, "invalid data folder"),
    {NULL}
};


module AP_MODULE_DECLARE_DATA get_service_module = {
    STANDARD20_MODULE_STUFF,
    create_services_config, /* create per-dir    config structures */
    NULL, /* merge  per-dir    config structures */
    NULL, /* create per-server config structures */
    NULL, /* merge  per-server config structures */
    services_conf, /* table of config file commands */
    get_service_register_hooks /* register hooks */
};

static void get_service_register_hooks(apr_pool_t *p)
{
    ap_hook_handler(get_service_handler, NULL, NULL, APR_HOOK_MIDDLE);
}

static int get_service_handler(request_rec *r)
{
    Service_Conf_Rec *conf = ap_get_module_config(r->per_dir_config, &get_service_module) ;
C函数调用
    //读取配置文件
    //对请求进行处理-->调用ServiceApi.cpp中的函数（dlopen-->call service.so function）
}

ServiceApi.cpp-->service.so

#ifndef _SERVICESAPI_H
#define _SERVICESAPI_H

#ifdef __cplusplus
extern "C" {

void Services_Init(...);
void Services_Finish(...);
#ifdef __cplusplus
}
#endif

#endif