Wed, 16 Jan 2036 19:55:59 GMT
ETag: "af4f020bbbd79d32fa800498a9739a59aadca1f3"

/*
   Copyright (c) 2010-2012 Red Hat, Inc. <http://www.redhat.com>
   This file is part of GlusterFS.

   This file is licensed to you under your choice of the GNU Lesser
   General Public License, version 3 or any later version (LGPLv3 or
   later), or the GNU General Public License, version 2 (GPLv2), in all
   cases as published by the Free Software Foundation.
*/
#include <stdlib.h>
#include "cli.h"
#include "cli1-xdr.h"
#include "run.h"
#include "compat.h"
#include "syscall.h"
#include "upcall-utils.h"

enum gf_task_types {
    GF_TASK_TYPE_REBALANCE,
    GF_TASK_TYPE_REMOVE_BRICK
};

/*
 * IMPORTANT NOTE:
 * All exported functions in this file which use libxml need use a
 * #if (HAVE_LIB_XML), #else, #endif
 * For eg,
 *      int exported_func () {
 *              #if (HAVE_LIB_XML)
 *                      <Stuff using libxml>
 *              #else
 *                      return 0;
 *              #endif
 *      }
 *
 *  All other functions, which are called internally within this file need to be
 *  within #if (HAVE_LIB_XML), #endif statements
 *  For eg,
 *      #if (HAVE_LIB_XML)
 *      int internal_func ()
 *      {
 *      }
 *      #endif
 *
 *  Following the above formate ensures that all xml related code is compliled
 *  only when libxml2 is present, and also keeps the rest of the codebase free
 *  of #if (HAVE_LIB_XML)
 */


#if (HAVE_LIB_XML)

#include <libxml/encoding.h>
#include <libxml/xmlwriter.h>

#define XML_RET_CHECK_AND_GOTO(ret, label)      do {            \
                if (ret < 0) {                                  \
                        ret = -1;                               \
                        goto label;                             \
                }                                               \
                else                                            \
                        ret = 0;                                \
        }while (0)                                              \

int
cli_begin_xml_output (xmlTextWriterPtr *writer, xmlDocPtr *doc)
{
        int             ret = -1;

        *writer = xmlNewTextWriterDoc (doc, 0);
        if (writer == NULL) {
                ret = -1;
                goto out;
        }

        ret = xmlTextWriterStartDocument (*writer, "1.0", "UTF-8", "yes");
        XML_RET_CHECK_AND_GOTO (ret, out);

        /* <cliOutput> */
        ret = xmlTextWriterStartElement (*writer, (xmlChar *)"cliOutput");
        XML_RET_CHECK_AND_GOTO (ret, out);

out:
        gf_log ("cli", GF_LOG_DEBUG, "Returning %d", ret);
        return ret;
}

int
cli_end_xml_output (xmlTextWriterPtr writer, xmlDocPtr doc)
{
        int             ret = -1;

        /* </cliOutput> */
        ret = xmlTextWriterEndElement (writer);
        XML_RET_CHECK_AND_GOTO (ret, out);

        ret = xmlTextWriterEndDocument (writer);
        XML_RET_CHECK_AND_GOTO (ret, out);


        /* Dump xml document to stdout and pretty format it */
        xmlSaveFormatFileEnc ("-", doc, "UTF-8", 1);

        xmlFreeTextWriter (writer);
        xmlFreeDoc (doc);

out:
        gf_log ("cli", GF_LOG_DEBUG, "Returning %d", ret);
        return ret;
}

int
cli_xml_output_common (xmlTextWriterPtr writer, int op_ret, int op_errno,
                       char *op_errstr)
{
        int             ret = -1;

        ret = xmlTextWriterWriteFormatElement (writer, (xmlChar *)"opRet",
                                               "%d", op_ret);
        XML_RET_CHECK_AND_GOTO (ret, out);

        ret = xmlTextWriterWriteFormatElement (writer, (xmlChar *)"opErrno",
                                               "%d", op_errno);
        XML_RET_CHECK_AND_GOTO (ret, out)