summaryrefslogtreecommitdiff
path: root/src/lib/ecore_ipc/ecore_ipc.c
blob: 6b5310f9683b4226fa47fd85251fa81a3fed9ea2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <string.h>

#ifdef HAVE_NETINET_IN_H
# include <sys/types.h>
# include <netinet/in.h>
#endif

#ifdef HAVE_WINSOCK2_H
# include <winsock2.h>
#endif

#include <Ecore.h>
#include <ecore_private.h>
#include <Ecore_Con.h>

#include "Ecore_Ipc.h"
#include "ecore_ipc_private.h"

#define DLT_ZERO   0
#define DLT_ONE    1
#define DLT_SAME   2
#define DLT_SHL    3
#define DLT_SHR    4
#define DLT_ADD8   5
#define DLT_DEL8   6
#define DLT_ADDU8  7
#define DLT_DELU8  8
#define DLT_ADD16  9
#define DLT_DEL16  10
#define DLT_ADDU16 11
#define DLT_DELU16 12
#define DLT_SET    13
#define DLT_R1     14
#define DLT_R2     15

int _ecore_ipc_log_dom = -1;

EAPI unsigned short
_ecore_ipc_swap_16(unsigned short v)
{
   unsigned char *s, t;

   s = (unsigned char *)(&v);
   t = s[0]; s[0] = s[1]; s[1] = t;
   return v;
}

EAPI unsigned int
_ecore_ipc_swap_32(unsigned int v)
{
   unsigned char *s, t;

   s = (unsigned char *)(&v);
   t = s[0]; s[0] = s[3]; s[3] = t;
   t = s[1]; s[1] = s[2]; s[2] = t;
   return v;
}

EAPI unsigned long long
_ecore_ipc_swap_64(unsigned long long v)
{
   unsigned char *s, t;

   s = (unsigned char *)(&v);
   t = s[0]; s[0] = s[7]; s[7] = t;
   t = s[1]; s[1] = s[6]; s[6] = t;
   t = s[2]; s[2] = s[5]; s[5] = t;
   t = s[3]; s[3] = s[4]; s[4] = t;
   return v;
}

static int _ecore_ipc_dlt_int(int out, int prev, int *mode);
static int _ecore_ipc_ddlt_int(int in, int prev, int mode);

static int
_ecore_ipc_dlt_int(int out, int prev, int *mode)
{
   int dlt;

   /* 0 byte */
   if (out == 0)
     {
        *mode = DLT_ZERO;
        return 0;
     }
   if (out == (int)0xffffffff)
     {
        *mode = DLT_ONE;
        return 0;
     }
   if (out == prev)
     {
        *mode = DLT_SAME;
        return 0;
     }
   if (out == prev << 1)
     {
        *mode = DLT_SHL;
        return 0;
     }
   if (out == prev >> 1)
     {
        *mode = DLT_SHR;
        return 0;
     }
   /* 1 byte */
   dlt = out - prev;
   if (!(dlt & 0xffffff00))
     {
        *mode = DLT_ADD8;
        return dlt & 0xff;
     }
   dlt = prev - out;
   if (!(dlt & 0xffffff00))
     {
        *mode = DLT_DEL8;
        return dlt & 0xff;
     }
   dlt = out - prev;
   if (!(dlt & 0x00ffffff))
     {
        *mode = DLT_ADDU8;
        return (dlt >> 24) & 0xff;
     }
   dlt = prev - out;
   if (!(dlt & 0x00ffffff))
     {
        *mode = DLT_DELU8;
        return (dlt >> 24) & 0xff;
     }
   /* 2 byte */
   dlt = out - prev;
   if (!(dlt & 0xffff0000))
     {
        *mode = DLT_ADD16;
        return dlt & 0xffff;
     }
   dlt = prev - out;
   if (!(dlt & 0xffff0000))
     {
        *mode = DLT_DEL16;
        return dlt & 0xffff;
     }
   dlt = out - prev;
   if (!(dlt & 0x0000ffff))
     {
        *mode = DLT_ADDU16;
        return (dlt >> 16) & 0xffff;
     }
   dlt = prev - out;
   if (!(dlt & 0x0000ffff))
     {
        *mode = DLT_DELU16;
        return (dlt >> 16) & 0xffff;
     }
   /* 4 byte */
   *mode = DLT_SET;
   return out;
}

static int
_ecore_ipc_ddlt_int(int in, int prev, int mode)
{
   switch (mode)
     {
      case DLT_ZERO:
        return 0;
        break;
      case DLT_ONE:
        return 0xffffffff;
        break;
      case DLT_SAME:
        return prev;
        break;
      case DLT_SHL:
        return prev << 1;
        break;
      case DLT_SHR:
        return prev >> 1;
        break;
      case DLT_ADD8:
        return prev + in;
        break;
      case DLT_DEL8:
        return prev - in;
        break;
      case DLT_ADDU8:
        return prev + (in << 24);
        break;
      case DLT_DELU8:
        return prev - (in << 24);
        break;
      case DLT_ADD16:
        return prev + in;
        break;
      case DLT_DEL16:
        return prev - in;
        break;
      case DLT_ADDU16:
        return prev + (in << 16);
        break;
      case DLT_DELU16:
        return prev - (in << 16);
        break;
      case DLT_SET:
        return in;
        break;
      case DLT_R1:
        return 0;
        break;
      case DLT_R2:
        return 0;
        break;
      default:
        break;
     }
   return 0;
}

static Eina_Bool _ecore_ipc_event_client_add(void *data, int ev_type, void *ev);
static Eina_Bool _ecore_ipc_event_client_del(void *data, int ev_type, void *ev);
static Eina_Bool _ecore_ipc_event_server_add(void *data, int ev_type, void *ev);
static Eina_Bool _ecore_ipc_event_server_del(void *data, int ev_type, void *ev);
static Eina_Bool _ecore_ipc_event_client_data(void *data, int ev_type, void *ev);
static Eina_Bool _ecore_ipc_event_server_data(void *data, int ev_type, void *ev);
static void _ecore_ipc_event_client_add_free(void *data, void *ev);
static void _ecore_ipc_event_client_del_free(void *data, void *ev);
static void _ecore_ipc_event_client_data_free(void *data, void *ev);
static void _ecore_ipc_event_server_add_free(void *data, void *ev);
static void _ecore_ipc_event_server_del_free(void *data, void *ev);
static void _ecore_ipc_event_server_data_free(void *data, void *ev);

EAPI int ECORE_IPC_EVENT_CLIENT_ADD = 0;
EAPI int ECORE_IPC_EVENT_CLIENT_DEL = 0;
EAPI int ECORE_IPC_EVENT_SERVER_ADD = 0;
EAPI int ECORE_IPC_EVENT_SERVER_DEL = 0;
EAPI int ECORE_IPC_EVENT_CLIENT_DATA = 0;
EAPI int ECORE_IPC_EVENT_SERVER_DATA = 0;

static int                  _ecore_ipc_init_count = 0;
static Eina_List           *servers = NULL;
static Ecore_Event_Handler *handler[6];

/**
 * @defgroup Ecore_IPC_Library_Group IPC Library Functions
 * @ingroup Ecore
 *
 * Functions that set up and shut down the Ecore IPC Library.
 */

/**
 * Initialises the Ecore IPC library.
 * @return  Number of times the library has been initialised without
 *          being shut down.
 * @ingroup Ecore_IPC_Library_Group
 */
EAPI int
ecore_ipc_init(void)
{
   int i = 0;

   if (++_ecore_ipc_init_count != 1)
     return _ecore_ipc_init_count;
   _ecore_ipc_log_dom = eina_log_domain_register
     ("ecore_ipc", ECORE_IPC_DEFAULT_LOG_COLOR);
   if(_ecore_ipc_log_dom < 0)
     {
       EINA_LOG_ERR("Impossible to create a log domain for the Ecore IPC module.");
       return --_ecore_ipc_init_count;
     }
   if (!ecore_con_init())
     return --_ecore_ipc_init_count;

   ECORE_IPC_EVENT_CLIENT_ADD = ecore_event_type_new();
   ECORE_IPC_EVENT_CLIENT_DEL = ecore_event_type_new();
   ECORE_IPC_EVENT_SERVER_ADD = ecore_event_type_new();
   ECORE_IPC_EVENT_SERVER_DEL = ecore_event_type_new();
   ECORE_IPC_EVENT_CLIENT_DATA = ecore_event_type_new();
   ECORE_IPC_EVENT_SERVER_DATA = ecore_event_type_new();

   handler[i++] = ecore_event_handler_add(ECORE_CON_EVENT_CLIENT_ADD,
                                          _ecore_ipc_event_client_add, NULL);
   handler[i++] = ecore_event_handler_add(ECORE_CON_EVENT_CLIENT_DEL,
                                          _ecore_ipc_event_client_del, NULL);
   handler[i++] = ecore_event_handler_add(ECORE_CON_EVENT_SERVER_ADD,
                                          _ecore_ipc_event_server_add, NULL);
   handler[i++] = ecore_event_handler_add(ECORE_CON_EVENT_SERVER_DEL,
                                          _ecore_ipc_event_server_del, NULL);
   handler[i++] = ecore_event_handler_add(ECORE_CON_EVENT_CLIENT_DATA,
                                          _ecore_ipc_event_client_data, NULL);
   handler[i] = ecore_event_handler_add(ECORE_CON_EVENT_SERVER_DATA,
                                          _ecore_ipc_event_server_data, NULL);
   return _ecore_ipc_init_count;
}

/**
 * Shuts down the Ecore IPC library.
 * @return  Number of times the library has been initialised without being
 *          shut down.
 * @ingroup Ecore_IPC_Library_Group
 */
EAPI int
ecore_ipc_shutdown(void)
{
   int i;

   if (--_ecore_ipc_init_count != 0)
     return _ecore_ipc_init_count;

   Eina_List *l, *l2;
   Ecore_Ipc_Server *svr;
   EINA_LIST_FOREACH_SAFE(servers, l, l2, svr)
     ecore_ipc_server_del(svr);

   for (i = 0; i < 6; i++)
     ecore_event_handler_del(handler[i]);

   ecore_con_shutdown();
   eina_log_domain_unregister(_ecore_ipc_log_dom);
   _ecore_ipc_log_dom = -1;
   return _ecore_ipc_init_count;
}

/**
 * @defgroup Ecore_IPC_Server_Group IPC Server Functions
 * @ingroup Ecore
 *
 * Functions the deal with IPC server objects.
 */

/**
 * Creates an IPC server that listens for connections.
 *
 * For more details about the @p compl_type, @p name and @p port
 * parameters, see the @ref ecore_con_server_add documentation.
 *
 * @param   compl_type The connection type.
 * @param   name       Name to associate with the socket used for connection.
 * @param   port       Number to identify with socket used for connection.
 * @param   data       Data to associate with the IPC server.
 * @return  New IPC server.  If there is an error, @c NULL is returned.
 * @ingroup Ecore_IPC_Server_Group
 * @todo    Need to add protocol type parameter to this function.
 */
EAPI Ecore_Ipc_Server *
ecore_ipc_server_add(Ecore_Ipc_Type compl_type, const char *name, int port, const void *data)
{
   Ecore_Ipc_Server *svr;
   Ecore_Ipc_Type type;
   Ecore_Con_Type extra = 0;

   if (!name) return NULL;

   svr = calloc(1, sizeof(Ecore_Ipc_Server));
   if (!svr) return NULL;
   type = compl_type;
   type &= ~ECORE_IPC_USE_SSL;
   if (compl_type & ECORE_IPC_USE_SSL) extra = ECORE_CON_USE_SSL;
   switch (type)
     {
      case ECORE_IPC_LOCAL_USER:
        svr->server = ecore_con_server_add(ECORE_CON_LOCAL_USER | extra, name, port, svr);
        break;
      case ECORE_IPC_LOCAL_SYSTEM:
        svr->server = ecore_con_server_add(ECORE_CON_LOCAL_SYSTEM | extra, name, port, svr);
        break;
      case ECORE_IPC_REMOTE_SYSTEM:
        svr->server = ecore_con_server_add(ECORE_CON_REMOTE_SYSTEM | extra, name, port, svr);
        break;
      default:
        free(svr);
        return NULL;
     }
   if (!svr->server)
     {
        free(svr);
        return NULL;
     }
   svr->max_buf_size = 32 * 1024;
   svr->data = (void *)data;
   servers = eina_list_append(servers, svr);
   ECORE_MAGIC_SET(svr, ECORE_MAGIC_IPC_SERVER);
   return svr;
}

/**
 * Creates an IPC server object to represent the IPC server listening
 * on the given port.
 *
 * For more details about the @p compl_type, @p name and @p port
 * parameters, see the @ref ecore_con_server_connect documentation.
 *
 * @param   compl_type The IPC connection type.
 * @param   name       Name used to determine which socket to use for the
 *                     IPC connection.
 * @param   port       Number used to identify the socket to use for the
 *                     IPC connection.
 * @param   data       Data to associate with the server.
 * @return  A new IPC server.  @c NULL is returned on error.
 * @ingroup Ecore_IPC_Server_Group
 * @todo    Need to add protocol type parameter.
 */
EAPI Ecore_Ipc_Server *
ecore_ipc_server_connect(Ecore_Ipc_Type compl_type, char *name, int port, const void *data)
{
   Ecore_Ipc_Server *svr;
   Ecore_Ipc_Type type;
   Ecore_Con_Type extra = 0;
   int features;

   svr = calloc(1, sizeof(Ecore_Ipc_Server));
   if (!svr) return NULL;
   type = compl_type & ECORE_IPC_TYPE;
   features = compl_type & ECORE_IPC_SSL;
   if ((features & ECORE_IPC_USE_SSL) == ECORE_IPC_USE_SSL)
     extra |= ECORE_CON_USE_SSL;
   if ((features & ECORE_IPC_NO_PROXY) == ECORE_IPC_NO_PROXY)
     extra |= ECORE_CON_NO_PROXY;
   switch (type)
     {
      case ECORE_IPC_LOCAL_USER:
        svr->server = ecore_con_server_connect(ECORE_CON_LOCAL_USER | extra, name, port, svr);
        break;
      case ECORE_IPC_LOCAL_SYSTEM:
        svr->server = ecore_con_server_connect(ECORE_CON_LOCAL_SYSTEM | extra, name, port, svr);
        break;
      case ECORE_IPC_REMOTE_SYSTEM:
        svr->server = ecore_con_server_connect(ECORE_CON_REMOTE_SYSTEM | extra, name, port, svr);
        break;
      default:
        free(svr);
        return NULL;
     }
   if (!svr->server)
     {
        free(svr);
        return NULL;
     }
   svr->max_buf_size = -1;
   svr->data = (void *)data;
   servers = eina_list_append(servers, svr);
   ECORE_MAGIC_SET(svr, ECORE_MAGIC_IPC_SERVER);
   return svr;
}

/**
 * Closes the connection and frees the given IPC server.
 * @param   svr The given IPC server.
 * @return  The data associated with the server when it was created.
 * @ingroup Ecore_IPC_Server_Group
 */
EAPI void *
ecore_ipc_server_del(Ecore_Ipc_Server *svr)
{
   void *data;

   if (!svr) return NULL;
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_del");
        return NULL;
     }
   if (svr->delete_me) return NULL;

   data = svr->data;
   svr->data = NULL;
   svr->delete_me = 1;
   if (svr->event_count == 0)
     {
        Ecore_Ipc_Client *cl;

        EINA_LIST_FREE(svr->clients, cl)
          ecore_ipc_client_del(cl);
        if (svr->server) ecore_con_server_del(svr->server);
        servers = eina_list_remove(servers, svr);

        if (svr->buf) free(svr->buf);
        ECORE_MAGIC_SET(svr, ECORE_MAGIC_NONE);
        free(svr);
     }
   return data;
}

/**
 * Retrieves the data associated with the given IPC server.
 * @param   svr The given IPC server.
 * @return  The associated data.
 * @ingroup Ecore_IPC_Server_Group
 */
EAPI void *
ecore_ipc_server_data_get(Ecore_Ipc_Server *svr)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_data_get");
        return NULL;
     }
   return svr->data;
}

/**
 * Retrieves whether the given IPC server is currently connected.
 * @param   svr The given IPC server.
 * @return @c EINA_TRUE if the server is connected, @c EINA_FALSE otherwise.
 * @ingroup Ecore_IPC_Server_Group
 */
EAPI Eina_Bool
ecore_ipc_server_connected_get(Ecore_Ipc_Server *svr)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_connected_get");
        return EINA_FALSE;
     }
   return ecore_con_server_connected_get(svr->server);
}

/**
 * Retrieves the list of clients for this server.
 * @param   svr The given IPC server.
 * @return  An Eina_List with the clients.
 * @ingroup Ecore_IPC_Server_Group
 */
EAPI Eina_List *
ecore_ipc_server_clients_get(Ecore_Ipc_Server *svr)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_clients_get");
        return NULL;
     }
   return svr->clients;
}

#define SVENC(_member) \
   d = _ecore_ipc_dlt_int(msg._member, svr->prev.o._member, &md); \
   if (md >= DLT_SET) \
     { \
        unsigned int v; \
        unsigned char *dd; \
        dd = (unsigned char *)&v; \
        v = d; \
        v = htonl(v); \
        *(dat + s + 0) = dd[0]; \
        *(dat + s + 1) = dd[1]; \
        *(dat + s + 2) = dd[2]; \
        *(dat + s + 3) = dd[3]; \
        s += 4; \
     } \
   else if (md >= DLT_ADD16) \
     { \
        unsigned short v; \
        unsigned char *dd; \
        dd = (unsigned char *)&v; \
        v = d; \
        v = htons(v); \
        *(dat + s + 0) = dd[0]; \
        *(dat + s + 1) = dd[1]; \
        s += 2; \
     } \
   else if (md >= DLT_ADD8) \
     { \
        *(dat + s + 0) = (unsigned char)d; \
        s += 1; \
     }

/**
 * Sends a message to the given IPC server.
 *
 * The content of the parameters, excluding the @p svr paramter, is up to
 * the client.
 *
 * @param   svr      The given IPC server.
 * @param   major    Major opcode of the message.
 * @param   minor    Minor opcode of the message.
 * @param   ref      Message reference number.
 * @param   ref_to   Reference number of the message this message refers to.
 * @param   response Requires response.
 * @param   data     The data to send as part of the message.
 * @param   size     Length of the data, in bytes, to send.
 * @return  Number of bytes sent.  @c 0 is returned if there is an error.
 * @ingroup Ecore_IPC_Server_Group
 * @todo    This function needs to become an IPC message.
 * @todo Fix up the documentation: Make sure what ref_to and response are.
 */
EAPI int
ecore_ipc_server_send(Ecore_Ipc_Server *svr, int major, int minor, int ref, int ref_to, int response, const void *data, int size)
{
   Ecore_Ipc_Msg_Head msg;
   int ret;
   int *head, md = 0, d, s;
   unsigned char dat[sizeof(Ecore_Ipc_Msg_Head)];

   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_send");
        return 0;
     }
   if (size < 0) size = 0;
   msg.major    = major;
   msg.minor    = minor;
   msg.ref      = ref;
   msg.ref_to   = ref_to;
   msg.response = response;
   msg.size     = size;
   head = (int *)dat;
   s = 4;
   SVENC(major);
   *head = md;
   SVENC(minor);
   *head |= md << (4 * 1);
   SVENC(ref);
   *head |= md << (4 * 2);
   SVENC(ref_to);
   *head |= md << (4 * 3);
   SVENC(response);
   *head |= md << (4 * 4);
   SVENC(size);
   *head |= md << (4 * 5);
   *head = htonl(*head);
   svr->prev.o = msg;
   ret = ecore_con_server_send(svr->server, dat, s);
   if (size > 0) ret += ecore_con_server_send(svr->server, data, size);
   return ret;
}

/**
 * Sets a limit on the number of clients that can be handled concurrently
 * by the given server, and a policy on what to do if excess clients try to
 * connect.
 * Beware that if you set this once ecore is already running, you may
 * already have pending CLIENT_ADD events in your event queue.  Those
 * clients have already connected and will not be affected by this call.
 * Only clients subsequently trying to connect will be affected.
 * @param   svr           The given server.
 * @param   client_limit  The maximum number of clients to handle
 *                        concurrently.  -1 means unlimited (default).  0
 *                        effectively disables the server.
 * @param   reject_excess_clients  Set to 1 to automatically disconnect
 *                        excess clients as soon as they connect if you are
 *                        already handling client_limit clients.  Set to 0
 *                        (default) to just hold off on the "accept()"
 *                        system call until the number of active clients
 *                        drops. This causes the kernel to queue up to 4096
 *                        connections (or your kernel's limit, whichever is
 *                        lower).
 * @ingroup Ecore_Ipc_Server_Group
 */
EAPI void
ecore_ipc_server_client_limit_set(Ecore_Ipc_Server *svr, int client_limit, char reject_excess_clients)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_client_limit_set");
        return;
     }
   ecore_con_server_client_limit_set(svr->server, client_limit, reject_excess_clients);
}

/**
 * Sets the max data payload size for an Ipc message in bytes
 *
 * @param   svr           The given server.
 * @param   size          The maximum data payload size in bytes.
 * @ingroup Ecore_Ipc_Server_Group
 */
EAPI void
ecore_ipc_server_data_size_max_set(Ecore_Ipc_Server *svr, int size)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_data_size_max_set");
        return;
     }
   svr->max_buf_size = size;
}

/**
 * Gets the max data payload size for an Ipc message in bytes
 *
 * @param   svr           The given server.
 * @return The maximum data payload in bytes.
 * @ingroup Ecore_Ipc_Server_Group
 */
EAPI int
ecore_ipc_server_data_size_max_get(Ecore_Ipc_Server *svr)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_data_size_max_get");
        return -1;
     }
   return svr->max_buf_size;
}

/**
 * Gets the IP address of a server that has been connected to.
 *
 * @param   svr           The given server.
 * @return  A pointer to an internal string that contains the IP address of
 *          the connected server in the form "XXX.YYY.ZZZ.AAA" IP notation.
 *          This string should not be modified or trusted to stay valid after
 *          deletion for the @p svr object. If no IP is known NULL is returned.
 * @ingroup Ecore_Ipc_Server_Group
 */
EAPI const char *
ecore_ipc_server_ip_get(Ecore_Ipc_Server *svr)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_ip_get");
        return NULL;
     }
   return ecore_con_server_ip_get(svr->server);
}

/**
 * Flushes all pending data to the given server. Will return when done.
 *
 * @param   svr           The given server.
 * @ingroup Ecore_Ipc_Server_Group
 */
EAPI void
ecore_ipc_server_flush(Ecore_Ipc_Server *svr)
{
   if (!ECORE_MAGIC_CHECK(svr, ECORE_MAGIC_IPC_SERVER))
     {
        ECORE_MAGIC_FAIL(svr, ECORE_MAGIC_IPC_SERVER,
                         "ecore_ipc_server_server_flush");
        return;
     }
   ecore_con_server_flush(svr->server);
}

#define CLENC(_member) \
   d = _ecore_ipc_dlt_int(msg._member, cl->prev.o._member, &md); \
   if (md >= DLT_SET) \
     { \
        unsigned int v; \
        unsigned char *dd; \
        dd = (unsigned char *)&v; \
        v = d; \
        v = htonl(v); \
        *(dat + s + 0) = dd[0]; \
        *(dat + s + 1) = dd[1]; \
        *(dat + s + 2) = dd[2]; \
        *(dat + s + 3) = dd[3]; \
        s += 4; \
     } \
   else if (md >= DLT_ADD16) \
     { \
        unsigned short v; \
        unsigned char *dd; \
        dd = (unsigned char *)&v; \
        v = d; \
        v = htons(v); \
        *(dat + s + 0) = dd[0]; \
        *(dat + s + 1) = dd[1]; \
        s += 2; \
     } \
   else if (md >= DLT_ADD8) \
     { \
        *(dat + s) = (unsigned char)d; \
        s += 1; \
     }

/**
 * @defgroup Ecore_IPC_Client_Group IPC Client Functions
 * @ingroup Ecore
 *
 * Functions that deal with IPC client objects.
 */

/**
 * Sends a message to the given IPC client.
 * @param   cl       The given IPC client.
 * @param   major    Major opcode of the message.
 * @param   minor    Minor opcode of the message.
 * @param   ref      Reference number of the message.
 * @param   ref_to   Reference number of the message this message refers to.
 * @param   response Requires response.
 * @param   data     The data to send as part of the message.
 * @param   size     Length of the data, in bytes, to send.
 * @return  The number of bytes sent.  @c 0 will be returned if there is
 *          an error.
 * @ingroup Ecore_IPC_Client_Group
 * @todo    This function needs to become an IPC message.
 * @todo    Make sure ref_to and response parameters are described correctly.
 */
EAPI int
ecore_ipc_client_send(Ecore_Ipc_Client *cl, int major, int minor, int ref, int ref_to, int response, const void *data, int size)
{
   Ecore_Ipc_Msg_Head msg;
   int ret;
   int *head, md = 0, d, s;
   unsigned char dat[sizeof(Ecore_Ipc_Msg_Head)];

   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_send");
        return 0;
     }
   EINA_SAFETY_ON_TRUE_RETURN_VAL(!cl->client, 0);
   EINA_SAFETY_ON_TRUE_RETURN_VAL(!ecore_con_client_connected_get(cl->client), 0);
   if (size < 0) size = 0;
   msg.major    = major;
   msg.minor    = minor;
   msg.ref      = ref;
   msg.ref_to   = ref_to;
   msg.response = response;
   msg.size     = size;
   head = (int *)dat;
   s = 4;
   CLENC(major);
   *head = md;
   CLENC(minor);
   *head |= md << (4 * 1);
   CLENC(ref);
   *head |= md << (4 * 2);
   CLENC(ref_to);
   *head |= md << (4 * 3);
   CLENC(response);
   *head |= md << (4 * 4);
   CLENC(size);
   *head |= md << (4 * 5);
   *head = htonl(*head);
   cl->prev.o = msg;
   ret = ecore_con_client_send(cl->client, dat, s);
   if (size > 0) ret += ecore_con_client_send(cl->client, data, size);
   return ret;
}

/**
 * Retrieves the IPC server that the given IPC client is connected to.
 * @param   cl The given IPC client.
 * @return  The IPC server the IPC client is connected to.
 * @ingroup Ecore_IPC_Client_Group
 */
EAPI Ecore_Ipc_Server *
ecore_ipc_client_server_get(Ecore_Ipc_Client *cl)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_server_get");
        return NULL;
     }
   return cl->svr;
}

/**
 * Closes the connection and frees memory allocated to the given IPC
 * client.
 * @param   cl The given client.
 * @return  Data associated with the client.
 * @ingroup Ecore_IPC_Client_Group
 */
EAPI void *
ecore_ipc_client_del(Ecore_Ipc_Client *cl)
{
   void *data;
   Ecore_Ipc_Server *svr;

   if (!cl) return NULL;
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_del");
        return NULL;
     }
   data = cl->data;
   cl->data = NULL;
   cl->delete_me = 1;
   if (cl->event_count == 0)
     {
        svr = cl->svr;
        if (cl->client) ecore_con_client_del(cl->client);
        svr->clients = eina_list_remove(svr->clients, cl);
        if (cl->buf) free(cl->buf);
        ECORE_MAGIC_SET(cl, ECORE_MAGIC_NONE);
        free(cl);
     }
   return data;
}

/**
 * Sets the IPC data associated with the given IPC client to @p data.
 * @param   cl   The given IPC client.
 * @param   data The data to associate with the IPC client.
 * @ingroup Ecore_IPC_Client_Group
 */
EAPI void
ecore_ipc_client_data_set(Ecore_Ipc_Client *cl, const void *data)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_data_set");
        return;
     }
   cl->data = (void *)data;
}

/**
 * Retrieves the data that has been associated with the given IPC client.
 * @param   cl The given client.
 * @return  The data associated with the IPC client.
 * @ingroup Ecore_IPC_Client_Group
 */
EAPI void *
ecore_ipc_client_data_get(Ecore_Ipc_Client *cl)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_data_get");
        return NULL;
     }
   return cl->data;
}

/**
 * Sets the max data payload size for an Ipc message in bytes
 *
 * @param   cl        The given client.
 * @param   size          The maximum data payload size in bytes.
 * @ingroup Ecore_Ipc_Client_Group
 */
EAPI void
ecore_ipc_client_data_size_max_set(Ecore_Ipc_Client *cl, int size)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_data_size_max_set");
        return;
     }
   cl->max_buf_size = size;
}

/**
 * Gets the max data payload size for an Ipc message in bytes
 *
 * @param   cl            The given client.
 * @return The maximum data payload size in bytes on success, @c -1 on failure.
 * @ingroup Ecore_Ipc_Client_Group
 */
EAPI int
ecore_ipc_client_data_size_max_get(Ecore_Ipc_Client *cl)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_data_size_max_get");
        return -1;
     }
   return cl->max_buf_size;
}

/**
 * Gets the IP address of a client that has been connected to.
 *
 * @param   cl            The given client.
 * @return  A pointer to an internal string that contains the IP address of
 *          the connected server in the form "XXX.YYY.ZZZ.AAA" IP notation.
 *          This string should not be modified or trusted to stay valid after
 *          deletion for the @p cl object. If no IP is known @c NULL is
 *          returned.
 * @ingroup Ecore_Ipc_Client_Group
 */
EAPI const char *
ecore_ipc_client_ip_get(Ecore_Ipc_Client *cl)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_ip_get");
        return NULL;
     }
   return ecore_con_client_ip_get(cl->client);
}

/**
 * Flushes all pending data to the given client. Will return when done.
 *
 * @param   cl            The given client.
 * @ingroup Ecore_Ipc_Client_Group
 */
EAPI void
ecore_ipc_client_flush(Ecore_Ipc_Client *cl)
{
   if (!ECORE_MAGIC_CHECK(cl, ECORE_MAGIC_IPC_CLIENT))
     {
        ECORE_MAGIC_FAIL(cl, ECORE_MAGIC_IPC_CLIENT,
                         "ecore_ipc_client_flush");
        return;
     }
   ecore_con_client_flush(cl->client);
}

/**
 * Returns if SSL support is available
 * @return  1 if SSL is available, 0 if it is not.
 * @ingroup Ecore_Con_Client_Group
 */
EAPI int
ecore_ipc_ssl_available_get(void)
{
   return ecore_con_ssl_available_get();
}


static Eina_Bool
_ecore_ipc_event_client_add(void *data EINA_UNUSED, int ev_type EINA_UNUSED, void *ev)
{
   Ecore_Con_Event_Client_Add *e;
   Ecore_Ipc_Server *svr;

   e = ev;
   svr = ecore_con_server_data_get(ecore_con_client_server_get(e->client));
   if (!eina_list_data_find(servers, svr)) return ECORE_CALLBACK_RENEW;
   /* handling code here */
     {
        Ecore_Ipc_Client *cl;

        cl = calloc(1, sizeof(Ecore_Ipc_Client));
        if (!cl) return ECORE_CALLBACK_CANCEL;
        cl->svr = svr;
        ECORE_MAGIC_SET(cl, ECORE_MAGIC_IPC_CLIENT);
        cl->client = e->client;
        cl->max_buf_size = 32 * 1024;
        ecore_con_client_data_set(cl->client, (void *)cl);
        svr->clients = eina_list_append(svr->clients, cl);
        if (!cl->delete_me)
          {
             Ecore_Ipc_Event_Client_Add *e2;

             e2 = calloc(1, sizeof(Ecore_Ipc_Event_Client_Add));
             if (e2)
               {
                  cl->event_count++;
                  e2->client = cl;
                  ecore_event_add(ECORE_IPC_EVENT_CLIENT_ADD, e2,
                                  _ecore_ipc_event_client_add_free, NULL);
               }
          }
     }
   return ECORE_CALLBACK_CANCEL;
}

static Eina_Bool
_ecore_ipc_event_client_del(void *data EINA_UNUSED, int ev_type EINA_UNUSED, void *ev)
{
   Ecore_Con_Event_Client_Del *e;
   Ecore_Ipc_Server *svr;

   e = ev;
   if (!e->client) return ECORE_CALLBACK_RENEW;
   svr = ecore_con_server_data_get(ecore_con_client_server_get(e->client));
   if (!eina_list_data_find(servers, svr)) return ECORE_CALLBACK_RENEW;
   /* handling code here */
     {
        Ecore_Ipc_Client *cl;

        cl = ecore_con_client_data_get(e->client);
        cl->client = NULL;
          {
             Ecore_Ipc_Event_Client_Del *e2;

             if (!cl->delete_me)
               {
                  e2 = calloc(1, sizeof(Ecore_Ipc_Event_Client_Del));
                  if (e2)
                    {
                       cl->event_count++;
                       e2->client = cl;
                       ecore_event_add(ECORE_IPC_EVENT_CLIENT_DEL, e2,
                                       _ecore_ipc_event_client_del_free, NULL);
                    }
               }
          }
     }
   return ECORE_CALLBACK_CANCEL;
}

static Eina_Bool
_ecore_ipc_event_server_add(void *data EINA_UNUSED, int ev_type EINA_UNUSED, void *ev)
{
   Ecore_Con_Event_Server_Add *e;

   e = ev;
   if (!eina_list_data_find(servers, ecore_con_server_data_get(e->server))) return ECORE_CALLBACK_RENEW;
   /* handling code here */
     {
        Ecore_Ipc_Server *svr;

        svr = ecore_con_server_data_get(e->server);
        if (!svr->delete_me)
          {
             Ecore_Ipc_Event_Server_Add *e2;

             e2 = calloc(1, sizeof(Ecore_Ipc_Event_Server_Add));
             if (e2)
               {
                  svr->event_count++;
                  e2->server = svr;
                  ecore_event_add(ECORE_IPC_EVENT_SERVER_ADD, e2,
                                  _ecore_ipc_event_server_add_free, NULL);
               }
          }
     }
   return ECORE_CALLBACK_CANCEL;
}

static Eina_Bool
_ecore_ipc_event_server_del(void *data EINA_UNUSED, int ev_type EINA_UNUSED, void *ev)
{
   Ecore_Con_Event_Server_Del *e;

   e = ev;
   if (!eina_list_data_find(servers, ecore_con_server_data_get(e->server))) return ECORE_CALLBACK_RENEW;
   /* handling code here */
     {
        Ecore_Ipc_Server *svr;

        svr = ecore_con_server_data_get(e->server);
        svr->server = NULL;
        if (!svr->delete_me)
          {
             Ecore_Ipc_Event_Server_Del *e2;

             e2 = calloc(1, sizeof(Ecore_Ipc_Event_Server_Del));
             if (e2)
               {
                  svr->event_count++;
                  e2->server = svr;
                  ecore_event_add(ECORE_IPC_EVENT_SERVER_DEL, e2,
                                  _ecore_ipc_event_server_del_free, NULL);
               }
          }
     }
   return ECORE_CALLBACK_CANCEL;
}

#define CLSZ(_n) \
   md = ((head >> (4 * _n)) & 0xf); \
   if (md >= DLT_SET) s += 4; \
   else if (md >= DLT_ADD16) s += 2; \
   else if (md >= DLT_ADD8) s += 1;

#define CLDEC(_n, _member) \
   md = ((head >> (4 * _n)) & 0xf); \
   if (md >= DLT_SET) \
     { \
        unsigned int v; \
        unsigned char *dv; \
        dv = (unsigned char *)&v; \
        dv[0] = *(cl->buf + offset + s + 0); \
        dv[1] = *(cl->buf + offset + s + 1); \
        dv[2] = *(cl->buf + offset + s + 2); \
        dv[3] = *(cl->buf + offset + s + 3); \
        d = (int)ntohl(v); \
        s += 4; \
     } \
   else if (md >= DLT_ADD16) \
     { \
        unsigned short v; \
        unsigned char *dv; \
        dv = (unsigned char *)&v; \
        dv[0] = *(cl->buf + offset + s + 0); \
        dv[1] = *(cl->buf + offset + s + 1); \
        d = (int)ntohs(v); \
        s += 2; \
     } \
   else if (md >= DLT_ADD8) \
     { \
        unsigned char v; \
        unsigned char *dv; \
        dv = (unsigned char *)&v; \
        dv[0] = *(cl->buf + offset + s + 0); \
        d = (int)v; \
        s += 1; \
     } \
   msg._member = _ecore_ipc_ddlt_int(d, cl->prev.i._member, md);

static Eina_Bool
_ecore_ipc_event_client_data(void *data EINA_UNUSED, int ev_type EINA_UNUSED, void *ev)
{
   Ecore_Con_Event_Client_Data *e;
   Ecore_Ipc_Server *svr;

   e = ev;
   svr = ecore_con_server_data_get(ecore_con_client_server_get(e->client));
   if (!eina_list_data_find(servers, svr)) return ECORE_CALLBACK_RENEW;
   /* handling code here */
     {
        Ecore_Ipc_Client *cl;
        Ecore_Ipc_Msg_Head msg;
        int offset = 0;
        unsigned char *buf;

        cl = ecore_con_client_data_get(e->client);

        if (!cl->buf)
          {
             cl->buf_size = e->size;
             cl->buf = e->data;
             e->data = NULL; /* take it out of the old event */
          }
        else
          {
             buf = realloc(cl->buf, cl->buf_size + e->size);
             if (!buf)
               {
                  free(cl->buf);
                  cl->buf = 0;
                  cl->buf_size  = 0;
                  return ECORE_CALLBACK_CANCEL;
               }
             cl->buf = buf;
             memcpy(cl->buf + cl->buf_size, e->data, e->size);
             cl->buf_size += e->size;
          }
        /* examine header */
        redo:
        if ((cl->buf_size - offset) >= (int)sizeof(int))
          {
             int s, md, d = 0, head;
             unsigned char *dd;

             dd = (unsigned char *)&head;
             dd[0] = *(cl->buf + offset + 0);
             dd[1] = *(cl->buf + offset + 1);
             dd[2] = *(cl->buf + offset + 2);
             dd[3] = *(cl->buf + offset + 3);
             head = ntohl(head);
             dd = (unsigned char *)&d;
             s = 4;
             CLSZ(0);
             CLSZ(1);
             CLSZ(2);
             CLSZ(3);
             CLSZ(4);
             CLSZ(5);
             if ((cl->buf_size - offset) < s)
               {
                  if (offset > 0) goto scroll;
                  return ECORE_CALLBACK_CANCEL;
               }

             s = 4;
             CLDEC(0, major);
             CLDEC(1, minor);
             CLDEC(2, ref);
             CLDEC(3, ref_to);
             CLDEC(4, response);
             CLDEC(5, size);
             if (msg.size < 0) msg.size = 0;
             /* there is enough data in the buffer for a full message */
             if ((cl->buf_size - offset) >= (s + msg.size))
               {
                  Ecore_Ipc_Event_Client_Data *e2;
                  int max, max2;

                  buf = NULL;
                  max = svr->max_buf_size;
                  max2 = cl->max_buf_size;
                  if ((max >= 0) && (max2 >= 0))
                    {
                       if (max2 < max) max = max2;
                    }
                  else
                    {
                       if (max < 0) max = max2;
                    }
                  if ((max < 0) || (msg.size <= max))
                    {
                       if (msg.size > 0)
                         {
                            buf = malloc(msg.size);
                            if (!buf) return ECORE_CALLBACK_CANCEL;
                            memcpy(buf, cl->buf + offset + s, msg.size);
                         }
                       if (!cl->delete_me)
                         {
                            e2 = calloc(1, sizeof(Ecore_Ipc_Event_Client_Data));
                            if (e2)
                              {
                                 cl->event_count++;
                                 e2->client   = cl;
                                 e2->major    = msg.major;
                                 e2->minor    = msg.minor;
                                 e2->ref      = msg.ref;
                                 e2->ref_to   = msg.ref_to;
                                 e2->response = msg.response;
                                 e2->size     = msg.size;
                                 e2->data     = buf;
                                 ecore_event_add(ECORE_IPC_EVENT_CLIENT_DATA, e2,
                                                 _ecore_ipc_event_client_data_free,
                                                 NULL);
                              }
                         }
                    }
                  cl->prev.i = msg;
                  offset += (s + msg.size);
                  if (cl->buf_size == offset)
                    {
                       free(cl->buf);
                       cl->buf = NULL;
                       cl->buf_size = 0;
                       return ECORE_CALLBACK_CANCEL;
                    }
                  goto redo;
               }
             else goto scroll;
          }
        else
          {
             scroll:
             buf = malloc(cl->buf_size - offset);
             if (!buf)
               {
                  free(cl->buf);
                  cl->buf = NULL;
                  cl->buf_size = 0;
                  return ECORE_CALLBACK_CANCEL;
               }
             memcpy(buf, cl->buf + offset, cl->buf_size - offset);
             free(cl->buf);
             cl->buf = buf;
             cl->buf_size -= offset;
          }
     }
   return ECORE_CALLBACK_CANCEL;
}

#define SVSZ(_n) \
   md = ((head >> (4 * _n)) & 0xf); \
   if (md >= DLT_SET) s += 4; \
   else if (md >= DLT_ADD16) s += 2; \
   else if (md >= DLT_ADD8) s += 1;

#define SVDEC(_n, _member) \
   md = ((head >> (4 * _n)) & 0xf); \
   if (md >= DLT_SET) \
     { \
        unsigned int v; \
        unsigned char *dv; \
        dv = (unsigned char *)&v; \
        dv[0] = *(svr->buf + offset + s + 0); \
        dv[1] = *(svr->buf + offset + s + 1); \
        dv[2] = *(svr->buf + offset + s + 2); \
        dv[3] = *(svr->buf + offset + s + 3); \
        d = (int)ntohl(v); \
        s += 4; \
     } \
   else if (md >= DLT_ADD16) \
     { \
        unsigned short v; \
        unsigned char *dv; \
        dv = (unsigned char *)&v; \
        dv[0] = *(svr->buf + offset + s + 0); \
        dv[1] = *(svr->buf + offset + s + 1); \
        d = (int)ntohs(v); \
        s += 2; \
     } \
   else if (md >= DLT_ADD8) \
     { \
        unsigned char v; \
        unsigned char *dv; \
        dv = (unsigned char *)&v; \
        dv[0] = *(svr->buf + offset + s + 0); \
        d = (int)v; \
        s += 1; \
     } \
   msg._member = _ecore_ipc_ddlt_int(d, svr->prev.i._member, md);

static Eina_Bool
_ecore_ipc_event_server_data(void *data EINA_UNUSED, int ev_type EINA_UNUSED, void *ev)
{
   Ecore_Con_Event_Server_Data *e;

   e = ev;
   if (!eina_list_data_find(servers, ecore_con_server_data_get(e->server))) return ECORE_CALLBACK_RENEW;
   /* handling code here */
     {
        Ecore_Ipc_Server *svr;
        Ecore_Ipc_Msg_Head msg;
        int offset = 0;
        unsigned char *buf;

        svr = ecore_con_server_data_get(e->server);

        if (!svr->buf)
          {
             svr->buf_size = e->size;
             svr->buf = e->data;
             e->data = NULL; /* take it out of the old event */
          }
        else
          {
             buf = realloc(svr->buf, svr->buf_size + e->size);
             if (!buf)
               {
                  free(svr->buf);
                  svr->buf = 0;
                  svr->buf_size  = 0;
                  return ECORE_CALLBACK_CANCEL;
               }
             svr->buf = buf;
             memcpy(svr->buf + svr->buf_size, e->data, e->size);
             svr->buf_size += e->size;
          }
        /* examine header */
        redo:
        if ((svr->buf_size - offset) >= (int)sizeof(int))
          {
             int s, md, d = 0, head;
             unsigned char *dd;

             dd = (unsigned char *)&head;
             dd[0] = *(svr->buf + offset + 0);
             dd[1] = *(svr->buf + offset + 1);
             dd[2] = *(svr->buf + offset + 2);
             dd[3] = *(svr->buf + offset + 3);
             head = ntohl(head);
             dd = (unsigned char *)&d;
             s = 4;
             SVSZ(0);
             SVSZ(1);
             SVSZ(2);
             SVSZ(3);
             SVSZ(4);
             SVSZ(5);
             if ((svr->buf_size - offset) < s)
               {
                  if (offset > 0) goto scroll;
                  return ECORE_CALLBACK_CANCEL;
               }

             s = 4;
             SVDEC(0, major);
             SVDEC(1, minor);
             SVDEC(2, ref);
             SVDEC(3, ref_to);
             SVDEC(4, response);
             SVDEC(5, size);
             if (msg.size < 0) msg.size = 0;
             /* there is enough data in the buffer for a full message */
             if ((svr->buf_size - offset) >= (s + msg.size))
               {
                  Ecore_Ipc_Event_Server_Data *e2;
                  int max;

                  buf = NULL;
                  max = svr->max_buf_size;
                  if ((max < 0) || (msg.size <= max))
                    {
                       if (msg.size > 0)
                         {
                            buf = malloc(msg.size);
                            if (!buf) return ECORE_CALLBACK_CANCEL;
                            memcpy(buf, svr->buf + offset + s, msg.size);
                         }
                       if (!svr->delete_me)
                         {
                            e2 = calloc(1, sizeof(Ecore_Ipc_Event_Server_Data));
                            if (e2)
                              {
                                 svr->event_count++;
                                 e2->server   = svr;
                                 e2->major    = msg.major;
                                 e2->minor    = msg.minor;
                                 e2->ref      = msg.ref;
                                 e2->ref_to   = msg.ref_to;
                                 e2->response = msg.response;
                                 e2->size     = msg.size;
                                 e2->data     = buf;
                                 ecore_event_add(ECORE_IPC_EVENT_SERVER_DATA, e2,
                                                 _ecore_ipc_event_server_data_free,
                                                 NULL);
                              }
                         }
                    }
                  svr->prev.i = msg;
                  offset += (s + msg.size);
                  if (svr->buf_size == offset)
                    {
                       free(svr->buf);
                       svr->buf = NULL;
                       svr->buf_size = 0;
                       return ECORE_CALLBACK_CANCEL;
                    }
                  goto redo;
               }
             else goto scroll;
          }
        else
          {
             scroll:
             buf = malloc(svr->buf_size - offset);
             if (!buf)
               {
                  free(svr->buf);
                  svr->buf = NULL;
                  svr->buf_size = 0;
                  return ECORE_CALLBACK_CANCEL;
               }
             memcpy(buf, svr->buf + offset, svr->buf_size - offset);
             free(svr->buf);
             svr->buf = buf;
             svr->buf_size -= offset;
          }
     }
   return ECORE_CALLBACK_CANCEL;
}

static void
_ecore_ipc_event_client_add_free(void *data EINA_UNUSED, void *ev)
{
   Ecore_Ipc_Event_Client_Add *e;

   e = ev;
   e->client->event_count--;
   if ((e->client->event_count == 0) && (e->client->delete_me))
     ecore_ipc_client_del(e->client);
   free(e);
}

static void
_ecore_ipc_event_client_del_free(void *data EINA_UNUSED, void *ev)
{
   Ecore_Ipc_Event_Client_Del *e;

   e = ev;
   e->client->event_count--;
   if ((e->client->event_count == 0) && (e->client->delete_me))
     ecore_ipc_client_del(e->client);
   free(e);
}

static void
_ecore_ipc_event_client_data_free(void *data EINA_UNUSED, void *ev)
{
   Ecore_Ipc_Event_Client_Data *e;

   e = ev;
   e->client->event_count--;
   if (e->data) free(e->data);
   if ((e->client->event_count == 0) && (e->client->delete_me))
     ecore_ipc_client_del(e->client);
   free(e);
}

static void
_ecore_ipc_event_server_add_free(void *data EINA_UNUSED, void *ev)
{
   Ecore_Ipc_Event_Server_Add *e;

   e = ev;
   e->server->event_count--;
   if ((e->server->event_count == 0) && (e->server->delete_me))
     ecore_ipc_server_del(e->server);
   free(e);
}

static void
_ecore_ipc_event_server_del_free(void *data EINA_UNUSED, void *ev)
{
   Ecore_Ipc_Event_Server_Add *e;

   e = ev;
   e->server->event_count--;
   if ((e->server->event_count == 0) && (e->server->delete_me))
     ecore_ipc_server_del(e->server);
   free(e);
}

static void
_ecore_ipc_event_server_data_free(void *data EINA_UNUSED, void *ev)
{
   Ecore_Ipc_Event_Server_Data *e;

   e = ev;
   if (e->data) free(e->data);
   e->server->event_count--;
   if ((e->server->event_count == 0) && (e->server->delete_me))
     ecore_ipc_server_del(e->server);
   free(e);
}