FREESWITCH如何用代码实现像发送INVITE一样发送INFO

在FreeSWITCH中，可以使用mod_signalwire模块提供的API来实现像发送INVITE一样发送INFO消息。下面是一个使用mod_signalwire模块发送INFO消息的示例代码：

#include <switch.h>

SWITCH_MODULE_LOAD_FUNCTION(mod_signalwire_load);
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_signalwire_shutdown);
SWITCH_MODULE_DEFINITION(mod_signalwire, mod_signalwire_load, mod_signalwire_shutdown, NULL);

SWITCH_STANDARD_APP(signalwire_info_function);

static struct {
    char *profile;
    char *account;
    char *project;
    char *token;
} globals;

SWITCH_MODULE_LOAD_FUNCTION(mod_signalwire_load) {
    switch_api_interface_t *api_interface;
    *module_interface = switch_loadable_module_create_module_interface(pool, modname);

    globals.profile = switch_core_get_variable("signalwire_profile");
    globals.account = switch_core_get_variable("signalwire_account");
    globals.project = switch_core_get_variable("signalwire_project");
    globals.token = switch_core_get_variable("signalwire_token");

    if (switch_api_interface_get("signalwire_info", &api_interface) == SWITCH_STATUS_SUCCESS) {
        switch_api_interface_bind(api_interface, "Sends an info message via SignalWire", NULL, signalwire_info_function, SAF_NONE);
    }

    return SWITCH_STATUS_SUCCESS;
}

SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_signalwire_shutdown) {
    return SWITCH_STATUS_SUCCESS;
}

SWITCH_STANDARD_APP(signalwire_info_function) {
    char *to = NULL;
    char *from = NULL;
    char *body = NULL;
    switch_status_t status;

    if (zstr(data)) {
        stream->write_function(stream, "-ERR No arguments provided\n");
        return SWITCH_STATUS_FALSE;
    }

    to = switch_event_get_header(event, "to");
    from = switch_event_get_header(event, "from");
    body = switch_event_get_header(event, "body");

    if (to && from && body) {
        status = switch_signalwire_send_info(globals.profile, globals.account, globals.project, globals.token, to, from, body);
        if (status != SWITCH_STATUS_SUCCESS) {
            stream->write_function(stream, "-ERR Failed to send SignalWire info message\n");
        }
    } else {
        stream->write_function(stream, "-ERR Invalid arguments\n");
    }

    return SWITCH_STATUS_SUCCESS;
}

在上面的示例代码中，首先定义了一个signalwire_info_function函数，用于接收和处理signalwire_info应用程序的调用请求。在该函数中，首先获取传递的参数，包括消息的接收者、发送者和消息内容等信息。然后，调用switch_signalwire_send_info函数来向SignalWire云发送INFO消息。

需要注意的是，要使用mod_signalwire模块提供的API，需要在FreeSWITCH中安装并启用mod_signalwire模块，并且需要在代码中设置SignalWire云的相关配置信息。同时，要使用switch_signalwire_send_info函数发送INFO消息，需要在代码中包含switch_signalwire.h头文件。