SmartPDU-Unuse/Xianglinghui/03.lib/appweb-doc/samples/cpp-handler/cppHandler.cpp

/*
    cppHandler.cpp - Create a simple AppWeb request handler in C++

    This sample demonstrates creating a request handler to process requests.

    Copyright (c) All Rights Reserved. See copyright notice at the bottom of the file.
 */

/******************************* Includes *****************************/

#include    "appweb.h"

/********************************* Code *******************************/
/*
    Run the handler. This is called when all input data has been received.
 */
static void readySimple(HttpQueue *q)
{
    HttpStream  *stream;

    stream = q->stream;
    httpSetHeaderString(stream, "Custom-Date", stream->http->currentDate);

    /*
        Generate some dynamic data. If you generate a lot, this will buffer up to a configured maximum.
        If that limit is exceeded, the packet will be sent downstream and the response headers will be created.
     */
    httpWrite(q, "Hello World\n");

    /*
        Call finalize when the response to the client is complete. Call httpFlushOutput if the response is
        incomplete and you wish to immediately send any buffered output.
     */
    httpFinalize(stream);
}



static void incomingSimple(HttpQueue *q, HttpPacket *packet)
{
    /*
        Do something with the incoming data in packet and then free the packet.
     */
    if (packet->content) {
        mprLog("debug", 0, "Data in packet is %s", mprGetBufStart(packet->content));
    }
}

#ifdef __cplusplus
extern "C" {
#endif

/*
    Module load initialization. This is called when the module is first loaded. The module name is "Simple".
 */
int httpSimpleHandlerInit(Http *http, MprModule *module)
{
    HttpStage   *stage;

    if ((stage = httpCreateHandler("simpleHandler", module)) == 0) {
        return MPR_ERR_CANT_CREATE;
    }
    stage->ready = readySimple;
    stage->incoming = incomingSimple;
    mprLog("debug", 0, "Loaded SimpleHandler");
    return 0;
}

#ifdef __cplusplus
}
#endif

/*
    Copyright (c) Embedthis Software. All Rights Reserved.
    This software is distributed under commercial and open source licenses.
    You may use the Embedthis Open Source license or you may acquire a
    commercial license from Embedthis Software. You agree to be fully bound
    by the terms of either license. Consult the LICENSE.md distributed with
    this software for full details and other copyrights.
 */