source3/utils/async-tracker.c

   1 /*
   2  * Copyright (C) 2011, Nokia <ivan.frade@nokia.com>
   3  * Copyright (C) 2015, Noel Power <nopower@suse.com>
   4  * Copyright (C) 2016, Ralph Boehme <slow@samba.org.>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.          See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public
  17  * License along with this library; if not, write to the
  18  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA  02110-1301, USA.
  20  */
  21
  22 #include "includes.h"
  23 #include "lib/util/debug.h"
  24 #include "lib/cmdline/cmdline.h"
  25 #include "param.h"
  26 /*
  27  * glib uses TRUE and FALSE which was redefined by "includes.h" to be
  28  * unusable, undefine so glib can establish its own working
  29  * replacement.
  30  */
  31 #undef TRUE
  32 #undef FALSE
  33 #include <glib.h>
  34 #include <libtracker-sparql/tracker-sparql.h>
  35 #include "lib/tevent_glib_glue.h"
  36
  37 enum loop_type {TEVENT_LOOP, GLIB_LOOP};
  38
  39 struct test_state {
  40         enum loop_type loop_type;
  41         TrackerSparqlConnection *connection;
  42         GCancellable *cancellable;
  43         GTimer *timer;
  44         GMainLoop *loop;
  45         struct tevent_context *ev;
  46         struct tevent_glib_glue *glue;
  47 };
  48
  49 static void cleanup(struct test_state *state)
  50 {
  51         g_cancellable_cancel(state->cancellable);
  52         g_object_unref(state->cancellable);
  53         g_timer_destroy(state->timer);
  54         if (state->connection != NULL) {
  55                 g_object_unref(state->connection);
  56                 state->connection = NULL;
  57         }
  58         if (state->loop_type == GLIB_LOOP) {
  59                 g_main_loop_quit(state->loop);
  60         } else {
  61                 samba_tevent_glib_glue_quit(state->glue);
  62         }
  63 }
  64
  65 static void cursor_cb(GObject      *object,
  66                       GAsyncResult *res,
  67                       gpointer      user_data)
  68 {
  69         struct test_state *state = talloc_get_type_abort(
  70                 user_data, struct test_state);
  71         TrackerSparqlCursor *cursor = NULL;
  72         GError *error = NULL;
  73         gboolean more_results;
  74         static gint i = 0;
  75
  76         cursor = TRACKER_SPARQL_CURSOR(object);
  77         more_results = tracker_sparql_cursor_next_finish(cursor,
  78                                                          res,
  79                                                          &error);
  80         if (error) {
  81                 g_critical("Could not run cursor next: %s", error->message);
  82
  83                 if (cursor != NULL) {
  84                         g_object_unref(cursor);
  85                 }
  86
  87                 g_error_free(error);
  88                 cleanup(state);
  89                 return;
  90         }
  91
  92         if (!more_results) {
  93                 g_print("\n");
  94                 g_print("\nAsync cursor next took: %.6f (for all %d results)\n",
  95                         g_timer_elapsed (state->timer, NULL), i);
  96
  97                 g_object_unref(cursor);
  98                 cleanup(state);
  99                 return;
 100         }
 101
 102         if (i++ < 5) {
 103                 int num_cols = tracker_sparql_cursor_get_n_columns(cursor);
 104                 int col;
 105
 106                 if (i == 1) {
 107                         g_print("Printing first 5 results:\n");
 108                 }
 109                 for (col = 0; col < num_cols; col++) {
 110                         g_print(" %s ", tracker_sparql_cursor_get_string(
 111                                         cursor, col, NULL));
 112                         if (col == num_cols -1 ) {
 113                                 g_print("\n");
 114                         }
 115                 }
 116
 117                 if (i == 5) {
 118                         g_print("  ...\n");
 119                         g_print("  Printing nothing for remaining results\n");
 120                 }
 121         }
 122
 123         tracker_sparql_cursor_next_async(cursor,
 124                                          state->cancellable,
 125                                          cursor_cb,
 126                                          state);
 127 }
 128
 129 static void query_cb(GObject      *object,
 130                      GAsyncResult *res,
 131                      gpointer      user_data)
 132 {
 133         struct test_state *state = talloc_get_type_abort(
 134                 user_data, struct test_state);
 135         TrackerSparqlCursor *cursor = NULL;
 136         GError *error = NULL;
 137
 138         g_print("Async query took: %.6f\n", g_timer_elapsed(state->timer, NULL));
 139
 140         cursor = tracker_sparql_connection_query_finish(
 141                         TRACKER_SPARQL_CONNECTION(object),
 142                         res,
 143                         &error);
 144         if (error) {
 145                 g_critical("Could not run query: %s", error->message);
 146
 147                 if (cursor) {
 148                         g_object_unref(cursor);
 149                 }
 150
 151                 g_error_free(error);
 152                 cleanup(state);
 153                 return;
 154         }
 155
 156         g_timer_start(state->timer);
 157
 158         tracker_sparql_cursor_next_async(cursor,
 159                                          state->cancellable,
 160                                          cursor_cb,
 161                                          state);
 162 }
 163
 164 static void connection_cb(GObject      *object,
 165                           GAsyncResult *res,
 166                           gpointer      user_data)
 167 {
 168         struct test_state *state = talloc_get_type_abort(
 169                 user_data, struct test_state);
 170         GError *error = NULL;
 171
 172         g_print("Async connection took: %.6f\n",
 173                 g_timer_elapsed(state->timer, NULL));
 174
 175         state->connection = tracker_sparql_connection_get_finish(res, &error);
 176         if (error) {
 177                 g_critical("Could not connect: %s", error->message);
 178                 g_error_free(error);
 179                 cleanup(state);
 180                 return;
 181         }
 182
 183         g_timer_start(state->timer);
 184
 185         tracker_sparql_connection_query_async(
 186                 state->connection,
 187                 "SELECT ?name nie:mimeType(?s) nfo:fileName(?s) "
 188                 "WHERE { {?s nie:url ?name}}",
 189                 state->cancellable,
 190                 query_cb,
 191                 state);
 192 }
 193
 194 static void debug_fn(void *private_data,
 195                      enum tevent_debug_level level,
 196                      const char *fmt,
 197                      va_list ap)
 198 {
 199         dbgtext_va(fmt, ap);
 200 }
 201
 202 int main(int argc, const char **argv)
 203 {
 204         TALLOC_CTX *mem_ctx = NULL;
 205         struct test_state *state = NULL;
 206         int c;
 207         poptContext pc;
 208         bool ok;
 209         struct poptOption long_options[] = {
 210                 POPT_AUTOHELP
 211                 {
 212                         .longName  = "tevent",
 213                         .shortName = 't',
 214                         .argInfo   = POPT_ARG_NONE,
 215                         .val       = 'v',
 216                         .descrip   = "Use tevent loop",
 217                 },
 218                 {
 219                         .longName  = "glib",
 220                         .shortName = 'g',
 221                         .argInfo   = POPT_ARG_NONE,
 222                         .val       = 'g',
 223                         .descrip   = "Use glib loop",
 224                 },
 225                 POPT_COMMON_SAMBA
 226                 POPT_COMMON_VERSION
 227                 POPT_TABLEEND
 228         };
 229
 230         mem_ctx = talloc_new(NULL);
 231         if (mem_ctx == NULL) {
 232                 exit(1);
 233         }
 234
 235         state = talloc_zero(mem_ctx, struct test_state);
 236         if (state == NULL) {
 237                 exit(1);
 238         }
 239
 240         state->loop_type = TEVENT_LOOP;
 241
 242         smb_init_locale();
 243
 244         ok = samba_cmdline_init(mem_ctx,
 245                                 SAMBA_CMDLINE_CONFIG_CLIENT,
 246                                 true /* require_smbconf */);
 247         if (!ok) {
 248                 TALLOC_FREE(mem_ctx);
 249                 exit(1);
 250         }
 251
 252         pc = samba_popt_get_context(getprogname(),
 253                                     argc,
 254                                     argv,
 255                                     long_options,
 256                                     POPT_CONTEXT_KEEP_FIRST);
 257         if (pc == NULL) {
 258                 TALLOC_FREE(mem_ctx);
 259                 exit(1);
 260         }
 261
 262         while ((c = poptGetNextOpt(pc)) != -1) {
 263                 switch (c) {
 264                 case 'g':
 265                         state->loop_type = GLIB_LOOP;
 266                         break;
 267                 case 't':
 268                         state->loop_type = TEVENT_LOOP;
 269                         break;
 270                 case POPT_ERROR_BADOPT:
 271                         fprintf(stderr, "\nInvalid option %s: %s\n\n",
 272                                 poptBadOption(pc, 0), poptStrerror(c));
 273                         poptPrintUsage(pc, stderr, 0);
 274                         exit(1);
 275                 }
 276         }
 277
 278         if (state->loop_type == GLIB_LOOP) {
 279                 state->loop = g_main_loop_new(NULL, false);
 280         } else {
 281                 state->ev = tevent_context_init(mem_ctx);
 282                 if (CHECK_DEBUGLVL(10)) {
 283                         tevent_set_debug(state->ev, debug_fn, NULL);
 284                 }
 285                 state->glue = samba_tevent_glib_glue_create(
 286                         mem_ctx, state->ev, g_main_context_default());
 287                 if (state->glue == NULL) {
 288                         printf("tevent_glib_glue_create failed\n");
 289                         exit(1);
 290                 }
 291         }
 292
 293         state->timer = g_timer_new();
 294         state->cancellable = g_cancellable_new();
 295
 296         tracker_sparql_connection_get_async(state->cancellable,
 297                                             connection_cb,
 298                                             state);
 299
 300         if (state->loop_type == GLIB_LOOP) {
 301                 printf("entering g_main_loop_run\n");
 302                 g_main_loop_run(state->loop);
 303         } else {
 304                 printf("entering tevent_loop_wait\n");
 305                 tevent_loop_wait(state->ev);
 306
 307                 TALLOC_FREE(state->glue);
 308                 TALLOC_FREE(state->ev);
 309         }
 310
 311         TALLOC_FREE(mem_ctx);
 312         poptFreeContext(pc);
 313
 314         return 0;
 315 }