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/*
* Copyright (c) 2006-2007 XenSource, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <assert.h>
#include <inttypes.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <libxml/parser.h>
#include <curl/curl.h>
#include "xen_event.h"
//#define PRINT_XML
static void usage()
{
fprintf(stderr,
"Usage:\n"
"\n"
" test_event_handling <server> <username> <password>\n"
"\n"
"where\n"
" <server> is the server's host and port, e.g. localhost:9363;\n"
" <username> is the username to use at the server; and\n"
" <password> is the password.\n");
exit(EXIT_FAILURE);
}
static char *url;
typedef struct
{
xen_result_func func;
void *handle;
} xen_comms;
static size_t
write_func(void *ptr, size_t size, size_t nmemb, xen_comms *comms)
{
size_t n = size * nmemb;
#ifdef PRINT_XML
printf("\n\n---Result from server -----------------------\n");
printf("%s\n",((char*) ptr));
fflush(stdout);
#endif
return comms->func(ptr, n, comms->handle) ? n : 0;
}
static int
call_func(const void *data, size_t len, void *user_handle,
void *result_handle, xen_result_func result_func)
{
(void)user_handle;
#ifdef PRINT_XML
printf("\n\n---Data to server: -----------------------\n");
printf("%s\n",((char*) data));
fflush(stdout);
#endif
CURL *curl = curl_easy_init();
if (!curl) {
return -1;
}
xen_comms comms = {
.func = result_func,
.handle = result_handle
};
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_NOPROGRESS, 1);
curl_easy_setopt(curl, CURLOPT_MUTE, 1);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &write_func);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &comms);
curl_easy_setopt(curl, CURLOPT_POST, 1);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, data);
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, len);
CURLcode result = curl_easy_perform(curl);
curl_easy_cleanup(curl);
return result;
}
static void print_error(xen_session *session)
{
fprintf(stderr, "Error: %d", session->error_description_count);
for (int i = 0; i < session->error_description_count; i++)
{
fprintf(stderr, "%s ", session->error_description[i]);
}
fprintf(stderr, "\n");
}
/**
* Workaround for whinging GCCs, as suggested by strftime(3).
*/
static size_t my_strftime(char *s, size_t max, const char *fmt,
const struct tm *tm)
{
return strftime(s, max, fmt, tm);
}
int main(int argc, char **argv)
{
if (argc != 4)
{
usage();
}
url = argv[1];
char *username = argv[2];
char *password = argv[3];
xmlInitParser();
xen_init();
curl_global_init(CURL_GLOBAL_ALL);
#define CLEANUP \
do { \
xen_session_logout(session); \
curl_global_cleanup(); \
xen_fini(); \
xmlCleanupParser(); \
} while(0) \
xen_session *session =
xen_session_login_with_password(call_func, NULL, username, password);
struct xen_string_set *classes = xen_string_set_alloc(0);
xen_event_register(session, classes);
xen_string_set_free(classes);
if (!session->ok)
{
print_error(session);
CLEANUP;
return 1;
}
while (true)
{
struct xen_event_record_set *events;
if (!xen_event_next(session, &events))
{
print_error(session);
CLEANUP;
return 1;
}
for (size_t i = 0; i < events->size; i++)
{
xen_event_record *ev = events->contents[i];
char time[256];
struct tm *tm = localtime(&ev->timestamp);
my_strftime(time, 256, "%c, local time", tm);
printf("Event received: ID = %"PRId64", %s.\n", ev->id, time);
switch (ev->operation)
{
case XEN_EVENT_OPERATION_ADD:
printf("%s created with UUID %s.\n", ev->class, ev->obj_uuid);
break;
case XEN_EVENT_OPERATION_DEL:
printf("%s with UUID %s deleted.\n", ev->class, ev->obj_uuid);
break;
case XEN_EVENT_OPERATION_MOD:
printf("%s with UUID %s modified.\n", ev->class, ev->obj_uuid);
break;
default:
assert(false);
}
}
xen_event_record_set_free(events);
}
CLEANUP;
return 0;
}
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