summaryrefslogtreecommitdiffstats
path: root/runtime/docs/html/map_8c-source.html
blob: 4dac0d8fdd48e75c8bed014da13d0f24fcc8397e (plain)
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
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>SystemTap: map.c Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.4.1 -->
<div class="qindex"><a class="qindex" href="index.html">Main&nbsp;Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File&nbsp;List</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related&nbsp;Pages</a></div>
<h1>map.c</h1><a href="map_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="preprocessor">#ifndef _MAP_C_ </span><span class="comment">/* -*- linux-c -*- */</span>
00002 <span class="preprocessor">#define _MAP_C_</span>
00003 <span class="preprocessor"></span><span class="comment"></span>
00004 <span class="comment">/** @file map.c</span>
00005 <span class="comment"> * @brief Implements maps (associative arrays) and lists</span>
00006 <span class="comment"> */</span>
00007 
00008 <span class="preprocessor">#include "<a class="code" href="map_8h.html">map.h</a>"</span>
00009 <span class="preprocessor">#include "<a class="code" href="alloc_8c.html">alloc.c</a>"</span>
00010 <span class="preprocessor">#include "<a class="code" href="string_8c.html">string.c</a>"</span>
00011 
00012 <span class="keyword">static</span> <span class="keywordtype">int</span> map_sizes[] = {
00013         <span class="keyword">sizeof</span>(<span class="keyword">struct </span>map_node_int64),
00014         sizeof(struct map_node_stat),
00015         sizeof(struct map_node_str),
00016         0
00017 };
00018 
00019 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> string_hash(<span class="keyword">const</span> <span class="keywordtype">char</span> *key1, <span class="keyword">const</span> <span class="keywordtype">char</span> *key2)
00020 {
00021         <span class="keywordtype">int</span> hash = 0, count = 0;
00022         <span class="keywordtype">char</span> *v1 = (<span class="keywordtype">char</span> *)key1;
00023         <span class="keywordtype">char</span> *v2 = (<span class="keywordtype">char</span> *)key2;
00024         <span class="keywordflow">while</span> (*v1 &amp;&amp; count++ &lt; 5) {
00025                 hash += *v1++;
00026         }
00027         <span class="keywordflow">while</span> (v2 &amp;&amp; *v2 &amp;&amp; count++ &lt; 5) {
00028                 hash += *v2++;
00029         }
00030         <span class="keywordflow">return</span> hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)hash, HASH_TABLE_BITS);
00031 }
00032 
00033 <span class="keyword">static</span> <span class="keywordtype">unsigned</span> mixed_hash(<span class="keyword">const</span> <span class="keywordtype">char</span> *key1, <span class="keywordtype">long</span> key2)
00034 {
00035         <span class="keywordtype">int</span> hash = 0, count = 0;
00036         <span class="keywordtype">char</span> *v = (<span class="keywordtype">char</span> *)key1;
00037         <span class="keywordflow">while</span> (v &amp;&amp; *v &amp;&amp; count++ &lt; 5)
00038                 hash += *v++;
00039         return hash_long((<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>)(hash ^ key2), HASH_TABLE_BITS);
00040 }
00041 <span class="comment"></span>
00042 <span class="comment">/** @addtogroup maps </span>
00043 <span class="comment"> * Implements maps (associative arrays) and lists</span>
00044 <span class="comment"> * @{ </span>
00045 <span class="comment"> */</span>
00046 <span class="comment"></span>
00047 <span class="comment">/** Create a new map.</span>
00048 <span class="comment"> * Maps must be created at module initialization time.</span>
00049 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00050 <span class="comment"> * be preallocated.  If more entries are required, the oldest ones will be deleted. This makes</span>
00051 <span class="comment"> * it effectively a circular buffer.  If max_entries is 0, there will be no maximum and entries</span>
00052 <span class="comment"> * will be allocated dynamically.</span>
00053 <span class="comment"> * @param type Type of values stored in this map. </span>
00054 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00055 <span class="comment"> */</span>
00056 
<a name="l00057"></a><a class="code" href="group__maps.html#ga2">00057</a> <a class="code" href="group__maps.html#ga1">MAP</a> _stp_map_new(<span class="keywordtype">unsigned</span> max_entries, enum valtype type)
00058 {
00059         size_t size;
00060         <a class="code" href="group__maps.html#ga1">MAP</a> m = (<a class="code" href="group__maps.html#ga1">MAP</a>) <a class="code" href="group__alloc.html#ga3">_stp_valloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_root));
00061         <span class="keywordflow">if</span> (m == NULL)
00062                 <span class="keywordflow">return</span> NULL;
00063 
00064         INIT_LIST_HEAD(&amp;m-&gt;head);
00065 
00066         m-&gt;maxnum = max_entries;
00067         m-&gt;type = type;
00068         <span class="keywordflow">if</span> (type &gt;= END) {
00069                 dbug (<span class="stringliteral">"map_new: unknown type %d\n"</span>, type);
00070                 <span class="keywordflow">return</span> NULL;
00071         }
00072 
00073         <span class="keywordflow">if</span> (max_entries) {
00074                 <span class="keywordtype">void</span> *tmp;
00075                 <span class="keywordtype">int</span> i;
00076                 <span class="keyword">struct </span>list_head *e;
00077 
00078                 INIT_LIST_HEAD(&amp;m-&gt;pool);
00079                 size = map_sizes[type];
00080                 tmp = <a class="code" href="group__alloc.html#ga3">_stp_valloc</a>(max_entries * size);
00081 
00082                 <span class="keywordflow">for</span> (i = max_entries - 1; i &gt;= 0; i--) {
00083                         e = i * size + tmp;
00084                         dbug (<span class="stringliteral">"e=%lx\n"</span>, (<span class="keywordtype">long</span>)e);
00085                         list_add(e, &amp;m-&gt;pool);
00086                 }
00087                 m-&gt;membuf = tmp;
00088         }
00089         <span class="keywordflow">return</span> m;
00090 }
00091 
00092 <span class="keyword">static</span> <span class="keywordtype">void</span> map_free_strings(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keyword">struct</span> map_node *n)
00093 {
00094         <span class="keyword">struct </span>map_node_str *m = (<span class="keyword">struct </span>map_node_str *)n;
00095         dbug (<span class="stringliteral">"n = %lx\n"</span>, (<span class="keywordtype">long</span>)n);
00096         <span class="keywordflow">if</span> (map-&gt;type == STRING) {
00097                 dbug (<span class="stringliteral">"val STRING %lx\n"</span>, (<span class="keywordtype">long</span>)m-&gt;str);
00098                 <span class="keywordflow">if</span> (m-&gt;str)
00099                         _stp_free(m-&gt;str);
00100         }
00101         if (m-&gt;n.key1type == STR) {
00102                 dbug (<span class="stringliteral">"key1 STR %lx\n"</span>, (<span class="keywordtype">long</span>)<a class="code" href="group__maps.html#ga25">key1str</a>(m));
00103                 <span class="keywordflow">if</span> (<a class="code" href="group__maps.html#ga25">key1str</a>(m))
00104                         _stp_free(key1str(m));
00105         }
00106         if (m-&gt;n.key2type == STR) {
00107                 dbug (<span class="stringliteral">"key2 STR %lx\n"</span>, (<span class="keywordtype">long</span>)<a class="code" href="group__maps.html#ga26">key2str</a>(m));
00108                 <span class="keywordflow">if</span> (<a class="code" href="group__maps.html#ga26">key2str</a>(m))
00109                         _stp_free(key2str(m));
00110         }
00111 }
00112 <span class="comment"></span>
00113 <span class="comment">/** Deletes the current element.</span>
00114 <span class="comment"> * If no current element (key) for this map is set, this function does nothing.</span>
00115 <span class="comment"> * @param map </span>
00116 <span class="comment"> */</span>
00117 
<a name="l00118"></a><a class="code" href="group__maps.html#ga4">00118</a> <span class="keywordtype">void</span> _stp_map_key_del(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00119 {
00120         <span class="keyword">struct </span>map_node *m;
00121 
00122         dbug (<span class="stringliteral">"create=%d key=%lx\n"</span>, map-&gt;create, (<span class="keywordtype">long</span>)map-&gt;key);
00123         <span class="keywordflow">if</span> (map == NULL)
00124                 <span class="keywordflow">return</span>;
00125 
00126         <span class="keywordflow">if</span> (map-&gt;create) {
00127                 map-&gt;create = 0;
00128                 map-&gt;key = NULL;
00129                 <span class="keywordflow">return</span>;
00130         }
00131 
00132         <span class="keywordflow">if</span> (map-&gt;key == NULL)
00133                 <span class="keywordflow">return</span>;
00134 
00135         m = (<span class="keyword">struct </span>map_node *)map-&gt;key;
00136 
00137         <span class="comment">/* remove node from old hash list */</span>
00138         hlist_del_init(&amp;m-&gt;hnode);
00139 
00140         <span class="comment">/* remove from entry list */</span>
00141         list_del(&amp;m-&gt;lnode);
00142 
00143         <span class="comment">/* remove any allocated string storage */</span>
00144         map_free_strings(map, (<span class="keyword">struct</span> map_node *)map-&gt;key);
00145 
00146         <span class="keywordflow">if</span> (map-&gt;maxnum)
00147                 list_add(&amp;m-&gt;lnode, &amp;map-&gt;pool);
00148         <span class="keywordflow">else</span>
00149                 <a class="code" href="group__alloc.html#ga4">_stp_free</a>(m);
00150 
00151         map-&gt;key = NULL;
00152         map-&gt;num--;
00153 }
00154 <span class="comment"></span>
00155 <span class="comment">/** Get the first element in a map.</span>
00156 <span class="comment"> * @param map </span>
00157 <span class="comment"> * @returns a pointer to the first element.</span>
00158 <span class="comment"> * This is typically used with _stp_map_iter().  See the foreach() macro</span>
00159 <span class="comment"> * for typical usage.  It probably does what you want anyway.</span>
00160 <span class="comment"> * @sa foreach</span>
00161 <span class="comment"> */</span>
00162 
<a name="l00163"></a><a class="code" href="group__maps.html#ga5">00163</a> <span class="keyword">struct </span>map_node *<a class="code" href="group__maps.html#ga5">_stp_map_start</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00164 {
00165         <span class="keywordflow">if</span> (map == NULL)
00166                 <span class="keywordflow">return</span> NULL;
00167 
00168         dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;head.next);
00169 
00170         <span class="keywordflow">if</span> (list_empty(&amp;map-&gt;head))
00171                 <span class="keywordflow">return</span> NULL;
00172 
00173         <span class="keywordflow">return</span> (<span class="keyword">struct</span> map_node *)map-&gt;head.next;
00174 }
00175 <span class="comment"></span>
00176 <span class="comment">/** Get the next element in a map.</span>
00177 <span class="comment"> * @param map </span>
00178 <span class="comment"> * @param m a pointer to the current element, returned from _stp_map_start()</span>
00179 <span class="comment"> * or _stp_map_iter().</span>
00180 <span class="comment"> * @returns a pointer to the next element.</span>
00181 <span class="comment"> * This is typically used with _stp_map_start().  See the foreach() macro</span>
00182 <span class="comment"> * for typical usage.  It probably does what you want anyway.</span>
00183 <span class="comment"> * @sa foreach</span>
00184 <span class="comment"> */</span>
00185 
<a name="l00186"></a><a class="code" href="group__maps.html#ga6">00186</a> <span class="keyword">struct </span>map_node *<a class="code" href="group__maps.html#ga6">_stp_map_iter</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keyword">struct</span> map_node *m)
00187 {
00188         <span class="keywordflow">if</span> (map == NULL)
00189                 <span class="keywordflow">return</span> NULL;
00190 
00191         dbug (<span class="stringliteral">"%lx next=%lx  prev=%lx  map-&gt;head.next=%lx\n"</span>, (<span class="keywordtype">long</span>)m, 
00192               (<span class="keywordtype">long</span>)m-&gt;lnode.next, (<span class="keywordtype">long</span>)m-&gt;lnode.prev, (<span class="keywordtype">long</span>)map-&gt;head.next);
00193 
00194         <span class="keywordflow">if</span> (m-&gt;lnode.next == &amp;map-&gt;head)
00195                 <span class="keywordflow">return</span> NULL;
00196 
00197         <span class="keywordflow">return</span> (<span class="keyword">struct</span> map_node *)m-&gt;lnode.next;
00198 }
00199 <span class="comment"></span>
00200 <span class="comment">/** Deletes a map.</span>
00201 <span class="comment"> * Deletes a map, freeing all memory in all elements.  Normally done only when the module exits.</span>
00202 <span class="comment"> * @param map</span>
00203 <span class="comment"> */</span>
00204 
<a name="l00205"></a><a class="code" href="group__maps.html#ga7">00205</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga7">_stp_map_del</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00206 {
00207         <span class="keywordflow">if</span> (map == NULL)
00208                 <span class="keywordflow">return</span>;
00209 
00210         <span class="keywordflow">if</span> (!list_empty(&amp;map-&gt;head)) {
00211                 <span class="keyword">struct </span>map_node *ptr = (<span class="keyword">struct </span>map_node *)map-&gt;head.next;
00212                 <span class="keywordflow">while</span> (ptr &amp;&amp; ptr != (<span class="keyword">struct</span> map_node *)&amp;map-&gt;head) {
00213                         map_free_strings(map, ptr);
00214                         ptr = (<span class="keyword">struct </span>map_node *)ptr-&gt;lnode.next;
00215                 }
00216         }
00217         <a class="code" href="group__alloc.html#ga5">_stp_vfree</a>(map-&gt;membuf);
00218         <a class="code" href="group__alloc.html#ga5">_stp_vfree</a>(map);
00219 }
00220 
00221 <span class="comment">/**********************  KEY FUNCTIONS *********************/</span>
00222 
00223 <span class="comment"></span>
00224 <span class="comment">/** Set the map's key to two longs.</span>
00225 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00226 <span class="comment"> * not found, a new element will not be created until a &lt;i&gt;_stp_map_set_xxx&lt;/i&gt;</span>
00227 <span class="comment"> * call.</span>
00228 <span class="comment"> * @param map</span>
00229 <span class="comment"> * @param key1 first key</span>
00230 <span class="comment"> * @param key2 second key</span>
00231 <span class="comment"> */</span>
00232 
<a name="l00233"></a><a class="code" href="group__maps.html#ga8">00233</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga8">_stp_map_key_long_long</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">long</span> key1, <span class="keywordtype">long</span> key2)
00234 {
00235         <span class="keywordtype">unsigned</span> hv;
00236         <span class="keyword">struct </span>hlist_head *head;
00237         <span class="keyword">struct </span>hlist_node *e;
00238 
00239         <span class="keywordflow">if</span> (map == NULL)
00240                 <span class="keywordflow">return</span>;
00241 
00242         hv = hash_long(key1 ^ key2, HASH_TABLE_BITS);
00243         head = &amp;map-&gt;hashes[hv];
00244 
00245         dbug (<span class="stringliteral">"hash for %ld,%ld is %d\n"</span>, key1, key2, hv);
00246 
00247         hlist_for_each(e, head) {
00248                 <span class="keyword">struct </span>map_node *n =
00249                         (<span class="keyword">struct </span>map_node *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00250                 dbug (<span class="stringliteral">"n =%lx  key=%ld,%ld\n"</span>, (<span class="keywordtype">long</span>)n, n-&gt;key1.val, n-&gt;key2.val);
00251                 <span class="keywordflow">if</span> (key1 == n-&gt;key1.val &amp;&amp; key2 == n-&gt;key2.val) {
00252                         map-&gt;key = n;
00253                         dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00254                         map-&gt;create = 0;
00255                         <span class="keywordflow">return</span>;
00256                 }
00257         }
00258 
00259         map-&gt;c_key1.val = key1;
00260         map-&gt;c_key2.val = key2;
00261         map-&gt;c_key1type = LONG;
00262         map-&gt;c_key2type = LONG;
00263         map-&gt;c_keyhead = head;
00264         map-&gt;create = 1;
00265 }
00266 <span class="comment"></span>
00267 <span class="comment">/** Set the map's key to two strings.</span>
00268 <span class="comment"> * This sets the current element based on a key of two strings. If the keys are</span>
00269 <span class="comment"> * not found, a new element will not be created until a &lt;i&gt;_stp_map_set_xxx&lt;/i&gt;</span>
00270 <span class="comment"> * call.</span>
00271 <span class="comment"> * @param map</span>
00272 <span class="comment"> * @param key1 first key</span>
00273 <span class="comment"> * @param key2 second key</span>
00274 <span class="comment"> */</span>
00275 
<a name="l00276"></a><a class="code" href="group__maps.html#ga9">00276</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga9">_stp_map_key_str_str</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">char</span> *key1, <span class="keywordtype">char</span> *key2)
00277 {
00278         <span class="keywordtype">unsigned</span> hv;
00279         <span class="keyword">struct </span>hlist_head *head;
00280         <span class="keyword">struct </span>hlist_node *e;
00281 
00282         <span class="keywordflow">if</span> (map == NULL)
00283                 <span class="keywordflow">return</span>;
00284 
00285         <span class="keywordflow">if</span> (key1 == NULL) {
00286                 map-&gt;key = NULL;
00287                 <span class="keywordflow">return</span>;
00288         }
00289 
00290         hv = string_hash(key1, key2);
00291         head = &amp;map-&gt;hashes[hv];
00292 
00293         dbug (<span class="stringliteral">"hash for %s,%s is %d\n"</span>, key1, key2, hv);
00294 
00295         hlist_for_each(e, head) {
00296                 <span class="keyword">struct </span>map_node *n =
00297                         (<span class="keyword">struct </span>map_node *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00298                 dbug (<span class="stringliteral">"e =%lx  key=%s,%s\n"</span>, (<span class="keywordtype">long</span>)e, n-&gt;key1.str,n-&gt;key2.str);
00299                 <span class="keywordflow">if</span> (strcmp(key1, n-&gt;key1.str) == 0
00300                     &amp;&amp; (key2 == NULL || strcmp(key2, n-&gt;key2.str) == 0)) {
00301                         map-&gt;key = n;
00302                         dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00303                         map-&gt;create = 0;
00304                         <span class="keywordflow">return</span>;
00305                 }
00306         }
00307 
00308         map-&gt;c_key1.str = key1;
00309         map-&gt;c_key2.str = key2;
00310         map-&gt;c_key1type = STR;
00311         map-&gt;c_key2type = STR;
00312         map-&gt;c_keyhead = head;
00313         map-&gt;create = 1;
00314 }
00315 <span class="comment"></span>
00316 <span class="comment">/** Set the map's key to a string and a long.</span>
00317 <span class="comment"> * This sets the current element based on a key of a string and a long. If the keys are</span>
00318 <span class="comment"> * not found, a new element will not be created until a &lt;i&gt;_stp_map_set_xxx&lt;/i&gt;</span>
00319 <span class="comment"> * call.</span>
00320 <span class="comment"> * @param map</span>
00321 <span class="comment"> * @param key1 first key</span>
00322 <span class="comment"> * @param key2 second key</span>
00323 <span class="comment"> */</span>
00324 
<a name="l00325"></a><a class="code" href="group__maps.html#ga10">00325</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga10">_stp_map_key_str_long</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">char</span> *key1, <span class="keywordtype">long</span> key2)
00326 {
00327         <span class="keywordtype">unsigned</span> hv;
00328         <span class="keyword">struct </span>hlist_head *head;
00329         <span class="keyword">struct </span>hlist_node *e;
00330 
00331         <span class="keywordflow">if</span> (map == NULL)
00332                 <span class="keywordflow">return</span>;
00333 
00334         <span class="keywordflow">if</span> (key1 == NULL) {
00335                 map-&gt;key = NULL;
00336                 <span class="keywordflow">return</span>;
00337         }
00338 
00339         hv = mixed_hash(key1, key2);
00340         head = &amp;map-&gt;hashes[hv];
00341 
00342         dbug (<span class="stringliteral">"hash for %s,%ld is %d\n"</span>, key1, key2, hv);
00343 
00344         hlist_for_each(e, head) {
00345                 <span class="keyword">struct </span>map_node *n =
00346                         (<span class="keyword">struct </span>map_node *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00347                 dbug (<span class="stringliteral">"e =%lx  key=%s,%ld\n"</span>, (<span class="keywordtype">long</span>)e, n-&gt;key1.str,(<span class="keywordtype">long</span>)n-&gt;key2.val);
00348                 <span class="keywordflow">if</span> (strcmp(key1, n-&gt;key1.str) == 0 &amp;&amp; key2 == n-&gt;key2.val) {
00349                         map-&gt;key = n;
00350                         dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00351                         map-&gt;create = 0;
00352                         <span class="keywordflow">return</span>;
00353                 }
00354         }
00355 
00356         map-&gt;c_key1.str = key1;
00357         map-&gt;c_key2.val = key2;
00358         map-&gt;c_key1type = STR;
00359         map-&gt;c_key2type = LONG;
00360         map-&gt;c_keyhead = head;
00361         map-&gt;create = 1;
00362 }
00363 <span class="comment"></span>
00364 <span class="comment">/** Set the map's key to a long and a string.</span>
00365 <span class="comment"> * This sets the current element based on a key of a long and a string. If the keys are</span>
00366 <span class="comment"> * not found, a new element will not be created until a &lt;i&gt;_stp_map_set_xxx&lt;/i&gt;</span>
00367 <span class="comment"> * call.</span>
00368 <span class="comment"> * @param map</span>
00369 <span class="comment"> * @param key1 first key</span>
00370 <span class="comment"> * @param key2 second key</span>
00371 <span class="comment"> */</span>
00372 
<a name="l00373"></a><a class="code" href="group__maps.html#ga11">00373</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga11">_stp_map_key_long_str</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">long</span> key1, <span class="keywordtype">char</span> *key2)
00374 {
00375         <span class="keywordtype">unsigned</span> hv;
00376         <span class="keyword">struct </span>hlist_head *head;
00377         <span class="keyword">struct </span>hlist_node *e;
00378 
00379         <span class="keywordflow">if</span> (map == NULL)
00380                 <span class="keywordflow">return</span>;
00381 
00382         hv = mixed_hash(key2, key1);
00383         head = &amp;map-&gt;hashes[hv];
00384         dbug (<span class="stringliteral">"hash for %ld,%s is %d\n"</span>, key1, key2, hv);
00385 
00386         hlist_for_each(e, head) {
00387                 <span class="keyword">struct </span>map_node *n =
00388                         (<span class="keyword">struct </span>map_node *)((long)e - <span class="keyword">sizeof</span>(<span class="keyword">struct </span>hlist_node));
00389                 dbug (<span class="stringliteral">"e =%lx  key=%ld,%s\n"</span>, (<span class="keywordtype">long</span>)e, n-&gt;key1.val,n-&gt;key2.str);
00390                 <span class="keywordflow">if</span> (key1 == n-&gt;key1.val &amp;&amp; strcmp(key2, n-&gt;key2.str) == 0) {
00391                         map-&gt;key = n;
00392                         dbug (<span class="stringliteral">"saving key %lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00393                         map-&gt;create = 0;
00394                         <span class="keywordflow">return</span>;
00395                 }
00396         }
00397 
00398         map-&gt;c_key1.val = key1;
00399         map-&gt;c_key2.str = key2;
00400         map-&gt;c_key1type = LONG;
00401         map-&gt;c_key2type = STR;
00402         map-&gt;c_keyhead = head;
00403         map-&gt;create = 1;
00404 }
00405 <span class="comment"></span>
00406 <span class="comment">/** Set the map's key to a string.</span>
00407 <span class="comment"> * This sets the current element based on a string key. If the key is</span>
00408 <span class="comment"> * not found, a new element will not be created until a &lt;i&gt;_stp_map_set_xxx&lt;/i&gt;</span>
00409 <span class="comment"> * call.</span>
00410 <span class="comment"> * @param map</span>
00411 <span class="comment"> * @param key</span>
00412 <span class="comment"> */</span>
00413 
<a name="l00414"></a><a class="code" href="group__maps.html#ga12">00414</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga12">_stp_map_key_str</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">char</span> *key)
00415 {
00416         <span class="keywordflow">if</span> (map == NULL)
00417                 <span class="keywordflow">return</span>;
00418         <a class="code" href="group__maps.html#ga9">_stp_map_key_str_str</a>(map, key, NULL);
00419         map-&gt;c_key2type = NONE;
00420 }
00421 <span class="comment"></span>
00422 <span class="comment">/** Set the map's key to a long.</span>
00423 <span class="comment"> * This sets the current element based on a long key. If the key is</span>
00424 <span class="comment"> * not found, a new element will not be created until a &lt;i&gt;_stp_map_set_xxx&lt;/i&gt;</span>
00425 <span class="comment"> * call.</span>
00426 <span class="comment"> * @param map</span>
00427 <span class="comment"> * @param key </span>
00428 <span class="comment"> */</span>
00429 
<a name="l00430"></a><a class="code" href="group__maps.html#ga13">00430</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">long</span> key)
00431 {
00432         <span class="keywordflow">if</span> (map == NULL)
00433                 <span class="keywordflow">return</span>;
00434         <a class="code" href="group__maps.html#ga8">_stp_map_key_long_long</a>(map, key, 0);
00435         map-&gt;c_key2type = NONE;
00436 }
00437 
00438 <span class="comment">/**********************  SET/GET VALUES *********************/</span>
00439 
00440 <span class="keyword">static</span> <span class="keywordtype">void</span> map_copy_keys(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keyword">struct</span> map_node *m)
00441 {
00442         m-&gt;key1type = map-&gt;c_key1type;
00443         m-&gt;key2type = map-&gt;c_key2type;
00444         <span class="keywordflow">switch</span> (map-&gt;c_key1type) {
00445         <span class="keywordflow">case</span> STR:
00446                 m-&gt;key1.str = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(map-&gt;c_key1.str) + 1);
00447                 strcpy(m-&gt;key1.str, map-&gt;c_key1.str);
00448                 <span class="keywordflow">break</span>;
00449         <span class="keywordflow">case</span> LONG:
00450                 m-&gt;key1.val = map-&gt;c_key1.val;
00451                 <span class="keywordflow">break</span>;
00452         <span class="keywordflow">case</span> NONE:
00453                 <span class="comment">/* ERROR */</span>
00454                 <span class="keywordflow">break</span>;
00455         }
00456         <span class="keywordflow">switch</span> (map-&gt;c_key2type) {
00457         <span class="keywordflow">case</span> STR:
00458                 m-&gt;key2.str = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(map-&gt;c_key2.str) + 1);
00459                 strcpy(m-&gt;key2.str, map-&gt;c_key2.str);
00460                 <span class="keywordflow">break</span>;
00461         <span class="keywordflow">case</span> LONG:
00462                 m-&gt;key2.val = map-&gt;c_key2.val;
00463                 <span class="keywordflow">break</span>;
00464         <span class="keywordflow">case</span> NONE:
00465                 <span class="keywordflow">break</span>;
00466         }
00467 
00468         <span class="comment">/* add node to new hash list */</span>
00469         hlist_add_head(&amp;m-&gt;hnode, map-&gt;c_keyhead);
00470         
00471         map-&gt;key = m;
00472         map-&gt;create = 0;
00473         map-&gt;num++;
00474 }
00475 
00476 <span class="keyword">static</span> <span class="keywordtype">void</span> __stp_map_set_int64(<a class="code" href="group__maps.html#ga1">MAP</a> map, int64_t val, <span class="keywordtype">int</span> add)
00477 {
00478         <span class="keyword">struct </span>map_node_int64 *m;
00479 
00480         <span class="keywordflow">if</span> (map == NULL)
00481                 return;
00482 
00483         if (map-&gt;create) {
00484                 <span class="keywordflow">if</span> (val == 0)
00485                         return;
00486 
00487                 if (map-&gt;maxnum) {
00488                         <span class="keywordflow">if</span> (list_empty(&amp;map-&gt;pool)) {
00489                                 <span class="keywordflow">if</span> (map-&gt;no_wrap) {
00490                                         <span class="comment">/* ERROR. FIXME */</span>
00491                                         <span class="keywordflow">return</span>;
00492                                 }
00493                                 m = (<span class="keyword">struct </span>map_node_int64 *)map-&gt;head.next;
00494                                 hlist_del_init(&amp;m-&gt;n.hnode);
00495                                 map_free_strings(map, (<span class="keyword">struct</span> map_node *)m);
00496                                 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00497                         } <span class="keywordflow">else</span> {
00498                                 m = (<span class="keyword">struct </span>map_node_int64 *)map-&gt;pool.next;
00499                                 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00500                         }
00501                         list_move_tail(&amp;m-&gt;n.lnode, &amp;map-&gt;head);
00502                 } <span class="keywordflow">else</span> {
00503                         m = (<span class="keyword">struct </span>map_node_int64 *)
00504                             <a class="code" href="group__alloc.html#ga2">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_int64));
00505                         <span class="comment">/* add node to list */</span>
00506                         list_add_tail(&amp;m-&gt;n.lnode, &amp;map-&gt;head);
00507                 }
00508 
00509                 <span class="comment">/* copy the key(s) */</span>
00510                 map_copy_keys(map, &amp;m-&gt;n);
00511 
00512                 <span class="comment">/* set the value */</span>
00513                 m-&gt;val = val;
00514         } <span class="keywordflow">else</span> {
00515                 <span class="keywordflow">if</span> (map-&gt;key == NULL)
00516                         return;
00517 
00518                 if (val) {
00519                         m = (<span class="keyword">struct </span>map_node_int64 *)map-&gt;key;
00520                         <span class="keywordflow">if</span> (add)
00521                                 m-&gt;val += val;
00522                         else
00523                                 m-&gt;val = val;
00524                 } else if (!add) {
00525                         <span class="comment">/* setting value to 0 is the same as deleting */</span>
00526                         <a class="code" href="group__maps.html#ga4">_stp_map_key_del</a>(map);
00527                 }
00528         }
00529 }
00530 <span class="comment"></span>
00531 <span class="comment">/** Set the current element's value to an int64.</span>
00532 <span class="comment"> * This sets the current element's value to an int64. The map must have been created</span>
00533 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00534 <span class="comment"> *</span>
00535 <span class="comment"> * If the element doesn't exist, it is created.  If no current element (key)</span>
00536 <span class="comment"> * is set for the map, this function does nothing.</span>
00537 <span class="comment"> * @param map</span>
00538 <span class="comment"> * @param val new value</span>
00539 <span class="comment"> * @sa _stp_map_add_int64</span>
00540 <span class="comment"> * @sa _stp_map_set()</span>
00541 <span class="comment"> */</span>
<a name="l00542"></a><a class="code" href="group__maps.html#ga16">00542</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga16">_stp_map_set_int64</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, int64_t val)
00543 {
00544         __stp_map_set_int64 (map, val, 0);
00545 }
00546 
00547 <span class="comment"></span>
00548 <span class="comment">/** Adds an int64 to the current element's value.</span>
00549 <span class="comment"> * This adds an int64 to the current element's value. The map must have been created</span>
00550 <span class="comment"> * to hold int64s using _stp_map_new()</span>
00551 <span class="comment"> *</span>
00552 <span class="comment"> * If the element doesn't exist, it is created.  If no current element (key)</span>
00553 <span class="comment"> * is set for the map, this function does nothing.</span>
00554 <span class="comment"> * @param map</span>
00555 <span class="comment"> * @param val value</span>
00556 <span class="comment"> * @sa _stp_map_set_int64</span>
00557 <span class="comment"> */</span>
00558 
<a name="l00559"></a><a class="code" href="group__maps.html#ga17">00559</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga17">_stp_map_add_int64</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, int64_t val)
00560 {
00561         __stp_map_set_int64 (map, val, 1);
00562 }
00563 <span class="comment"></span>
00564 <span class="comment">/** Gets the current element's value.</span>
00565 <span class="comment"> * @param map</span>
00566 <span class="comment"> * @returns The value. If the current element is not set or doesn't exist, returns 0.</span>
00567 <span class="comment"> */</span>
00568 
<a name="l00569"></a><a class="code" href="group__maps.html#ga18">00569</a> int64_t <a class="code" href="group__maps.html#ga18">_stp_map_get_int64</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00570 {
00571         <span class="keyword">struct </span>map_node_int64 *m;
00572         <span class="keywordflow">if</span> (map == NULL || map-&gt;create || map-&gt;key == NULL)
00573                 <span class="keywordflow">return</span> 0;
00574         dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00575         m = (<span class="keyword">struct </span>map_node_int64 *)map-&gt;key;
00576         <span class="keywordflow">return</span> m-&gt;val;
00577 }
00578 <span class="comment"></span>
00579 <span class="comment">/** Set the current element's value to a C string.</span>
00580 <span class="comment"> * This sets the current element's value to an C string. The map must have been created</span>
00581 <span class="comment"> * to hold int64s using &lt;i&gt;_stp_map_new(xxx, STRING)&lt;/i&gt;</span>
00582 <span class="comment"> *</span>
00583 <span class="comment"> * If the element doesn't exist, it is created.  If no current element (key)</span>
00584 <span class="comment"> * is set for the map, this function does nothing.</span>
00585 <span class="comment"> * @param map</span>
00586 <span class="comment"> * @param val new string</span>
00587 <span class="comment"> * @sa _stp_map_set()</span>
00588 <span class="comment"> */</span>
00589 
<a name="l00590"></a><a class="code" href="group__maps.html#ga19">00590</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga19">_stp_map_set_str</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">char</span> *val)
00591 {
00592         <span class="keyword">struct </span>map_node_str *m;
00593 
00594         <span class="keywordflow">if</span> (map == NULL)
00595                 <span class="keywordflow">return</span>;
00596 
00597         <span class="keywordflow">if</span> (map-&gt;create) {
00598                 <span class="keywordflow">if</span> (val == NULL)
00599                         <span class="keywordflow">return</span>;
00600 
00601                 <span class="keywordflow">if</span> (map-&gt;maxnum) {
00602                         <span class="keywordflow">if</span> (list_empty(&amp;map-&gt;pool)) {
00603                                 <span class="keywordflow">if</span> (map-&gt;no_wrap) {
00604                                         <span class="comment">/* ERROR. FIXME */</span>
00605                                         <span class="keywordflow">return</span>;
00606                                 }
00607                                 m = (<span class="keyword">struct </span>map_node_str *)map-&gt;head.next;
00608                                 hlist_del_init(&amp;m-&gt;n.hnode);
00609                                 map_free_strings(map, (<span class="keyword">struct</span> map_node *)m);
00610                                 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00611                         } <span class="keywordflow">else</span> {
00612                                 m = (<span class="keyword">struct </span>map_node_str *)map-&gt;pool.next;
00613                                 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00614                         }
00615                         list_move_tail(&amp;m-&gt;n.lnode, &amp;map-&gt;head);
00616                 } <span class="keywordflow">else</span> {
00617                         m = (<span class="keyword">struct </span>map_node_str *)
00618                             <a class="code" href="group__alloc.html#ga2">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_str));
00619                         <span class="comment">/* add node to list */</span>
00620                         list_add_tail(&amp;m-&gt;n.lnode, &amp;map-&gt;head);
00621                 }
00622 
00623                 <span class="comment">/* copy the key(s) */</span>
00624                 map_copy_keys(map, &amp;m-&gt;n);
00625 
00626                 <span class="comment">/* set the value */</span>
00627                 m-&gt;str = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(val) + 1);
00628                 strcpy(m-&gt;str, val);
00629         } <span class="keywordflow">else</span> {
00630                 <span class="keywordflow">if</span> (map-&gt;key == NULL)
00631                         <span class="keywordflow">return</span>;
00632 
00633                 <span class="keywordflow">if</span> (val) {
00634                         m = (<span class="keyword">struct </span>map_node_str *)map-&gt;key;
00635                         <span class="keywordflow">if</span> (m-&gt;str)
00636                                 <a class="code" href="group__alloc.html#ga4">_stp_free</a>(m-&gt;str);
00637                         m-&gt;str = <a class="code" href="group__alloc.html#ga1">_stp_alloc</a>(strlen(val) + 1);
00638                         strcpy(m-&gt;str, val);
00639                 } <span class="keywordflow">else</span> {
00640                         <span class="comment">/* setting value to 0 is the same as deleting */</span>
00641                         <a class="code" href="group__maps.html#ga4">_stp_map_key_del</a>(map);
00642                 }
00643         }
00644 }
00645 <span class="comment"></span>
00646 <span class="comment">/** Set the current element's value to String.</span>
00647 <span class="comment"> * This sets the current element's value to a String. The map must have been created</span>
00648 <span class="comment"> * to hold int64s using &lt;i&gt;_stp_map_new(xxx, STRING)&lt;/i&gt;</span>
00649 <span class="comment"> *</span>
00650 <span class="comment"> * If the element doesn't exist, it is created.  If no current element (key)</span>
00651 <span class="comment"> * is set for the map, this function does nothing.</span>
00652 <span class="comment"> * @param map</span>
00653 <span class="comment"> * @param str String containing new value.</span>
00654 <span class="comment"> * @sa _stp_map_set()</span>
00655 <span class="comment"> */</span>
00656 
<a name="l00657"></a><a class="code" href="group__maps.html#ga20">00657</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga20">_stp_map_set_string</a> (<a class="code" href="group__maps.html#ga1">MAP</a> map, String str)
00658 {
00659   <a class="code" href="group__maps.html#ga19">_stp_map_set_str</a> (map, str-&gt;buf);
00660 }
00661 <span class="comment"></span>
00662 <span class="comment">/** Gets the current element's value.</span>
00663 <span class="comment"> * @param map</span>
00664 <span class="comment"> * @returns A string pointer. If the current element is not set or doesn't exist, returns NULL.</span>
00665 <span class="comment"> */</span>
00666 
<a name="l00667"></a><a class="code" href="group__maps.html#ga21">00667</a> <span class="keywordtype">char</span> *<a class="code" href="group__maps.html#ga21">_stp_map_get_str</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00668 {
00669         <span class="keyword">struct </span>map_node_str *m;
00670         <span class="keywordflow">if</span> (map == NULL || map-&gt;create || map-&gt;key == NULL)
00671                 <span class="keywordflow">return</span> NULL;
00672         dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00673         m = (<span class="keyword">struct </span>map_node_str *)map-&gt;key;
00674         <span class="keywordflow">return</span> m-&gt;str;
00675 }
00676 <span class="comment"></span>
00677 <span class="comment">/** Set the current element's value to a stat.</span>
00678 <span class="comment"> * This sets the current element's value to an stat struct. The map must have been created</span>
00679 <span class="comment"> * to hold stats using &lt;i&gt;_stp_map_new(xxx, STAT)&lt;/i&gt;.  This function would only be used</span>
00680 <span class="comment"> * if we wanted to set stats to something other than the normal initial values (count = 0,</span>
00681 <span class="comment"> * sum = 0, etc).  It may be deleted if it doesn't turn out to be useful.</span>
00682 <span class="comment"> * @sa _stp_map_stat_add </span>
00683 <span class="comment"> *</span>
00684 <span class="comment"> * If the element doesn't exist, it is created.  If no current element (key)</span>
00685 <span class="comment"> * is set for the map, this function does nothing.</span>
00686 <span class="comment"> * @param map</span>
00687 <span class="comment"> * @param stats pointer to stats struct.</span>
00688 <span class="comment"> * @todo Histograms don't work yet.</span>
00689 <span class="comment"> */</span>
00690 
<a name="l00691"></a><a class="code" href="group__maps.html#ga22">00691</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga22">_stp_map_set_stat</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, stat * stats)
00692 {
00693         <span class="keyword">struct </span>map_node_stat *m;
00694 
00695         <span class="keywordflow">if</span> (map == NULL)
00696                 <span class="keywordflow">return</span>;
00697         dbug (<span class="stringliteral">"set_stat %lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00698 
00699         <span class="keywordflow">if</span> (map-&gt;create) {
00700                 <span class="keywordflow">if</span> (stats == NULL)
00701                         <span class="keywordflow">return</span>;
00702 
00703                 <span class="keywordflow">if</span> (map-&gt;maxnum) {
00704                         <span class="keywordflow">if</span> (list_empty(&amp;map-&gt;pool)) {
00705                                 <span class="keywordflow">if</span> (map-&gt;no_wrap) {
00706                                         <span class="comment">/* ERROR. FIXME */</span>
00707                                         <span class="keywordflow">return</span>;
00708                                 }
00709                                 m = (<span class="keyword">struct </span>map_node_stat *)map-&gt;head.next;
00710                                 hlist_del_init(&amp;m-&gt;n.hnode);
00711                                 map_free_strings(map, (<span class="keyword">struct</span> map_node *)m);
00712                                 dbug (<span class="stringliteral">"got %lx off head\n"</span>, (<span class="keywordtype">long</span>)m);
00713                         } <span class="keywordflow">else</span> {
00714                                 m = (<span class="keyword">struct </span>map_node_stat *)map-&gt;pool.next;
00715                                 dbug (<span class="stringliteral">"got %lx off pool\n"</span>, (<span class="keywordtype">long</span>)m);
00716                         }
00717                         list_move_tail(&amp;m-&gt;n.lnode, &amp;map-&gt;head);
00718                 } <span class="keywordflow">else</span> {
00719                         m = (<span class="keyword">struct </span>map_node_stat *)
00720                             <a class="code" href="group__alloc.html#ga2">_stp_calloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> map_node_stat));
00721                         <span class="comment">/* add node to list */</span>
00722                         list_add_tail(&amp;m-&gt;n.lnode, &amp;map-&gt;head);
00723                 }
00724 
00725                 <span class="comment">/* copy the key(s) */</span>
00726                 map_copy_keys(map, &amp;m-&gt;n);
00727 
00728                 <span class="comment">/* set the value */</span>
00729                 memcpy(&amp;m-&gt;stats, stats, <span class="keyword">sizeof</span>(stat));
00730         } <span class="keywordflow">else</span> {
00731                 <span class="keywordflow">if</span> (map-&gt;key == NULL)
00732                         <span class="keywordflow">return</span>;
00733 
00734                 <span class="keywordflow">if</span> (stats) {
00735                         m = (<span class="keyword">struct </span>map_node_stat *)map-&gt;key;
00736                         memcpy(&amp;m-&gt;stats, stats, <span class="keyword">sizeof</span>(stat));
00737                 } <span class="keywordflow">else</span> {
00738                         <span class="comment">/* setting value to NULL is the same as deleting */</span>
00739                         <a class="code" href="group__maps.html#ga4">_stp_map_key_del</a>(map);
00740                 }
00741         }
00742 }
00743 <span class="comment"></span>
00744 <span class="comment">/** Gets the current element's value.</span>
00745 <span class="comment"> * @param map</span>
00746 <span class="comment"> * @returns A pointer to the stats struct. If the current element is not set </span>
00747 <span class="comment"> * or doesn't exist, returns NULL.</span>
00748 <span class="comment"> */</span>
00749 
<a name="l00750"></a><a class="code" href="group__maps.html#ga23">00750</a> stat *<a class="code" href="group__maps.html#ga23">_stp_map_get_stat</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00751 {
00752         <span class="keyword">struct </span>map_node_stat *m;
00753         <span class="keywordflow">if</span> (map == NULL || map-&gt;create || map-&gt;key == NULL)
00754                 <span class="keywordflow">return</span> NULL;
00755         dbug (<span class="stringliteral">"%lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00756         m = (<span class="keyword">struct </span>map_node_stat *)map-&gt;key;
00757         <span class="keywordflow">return</span> &amp;m-&gt;stats;
00758 }
00759 <span class="comment"></span>
00760 <span class="comment">/** Add to the current element's statistics.</span>
00761 <span class="comment"> * Increments the statistics counter by one and the sum by &lt;i&gt;val&lt;/i&gt;.</span>
00762 <span class="comment"> * Adjusts minimum, maximum, and histogram.</span>
00763 <span class="comment"> *</span>
00764 <span class="comment"> * If the element doesn't exist, it is created.  If no current element (key)</span>
00765 <span class="comment"> * is set for the map, this function does nothing.</span>
00766 <span class="comment"> * @param map</span>
00767 <span class="comment"> * @param val value to add to the statistics</span>
00768 <span class="comment"> * @todo Histograms don't work yet.</span>
00769 <span class="comment"> */</span>
00770 
<a name="l00771"></a><a class="code" href="group__maps.html#ga24">00771</a> <span class="keywordtype">void</span> <a class="code" href="group__maps.html#ga24">_stp_map_stat_add</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, int64_t val)
00772 {
00773         <span class="keyword">struct </span>map_node_stat *m;
00774         <span class="keywordflow">if</span> (map == NULL)
00775                 <span class="keywordflow">return</span>;
00776 
00777         <span class="keywordflow">if</span> (map-&gt;create) {
00778                 stat st = { 1, val, val, val };
00779                 <span class="comment">/* histogram */</span>
00780                 <a class="code" href="group__maps.html#ga22">_stp_map_set_stat</a>(map, &amp;st);
00781                 <span class="keywordflow">return</span>;
00782         }
00783 
00784         <span class="keywordflow">if</span> (map-&gt;key == NULL)
00785                 <span class="keywordflow">return</span>;
00786 
00787         dbug (<span class="stringliteral">"add_stat %lx\n"</span>, (<span class="keywordtype">long</span>)map-&gt;key);
00788         m = (<span class="keyword">struct </span>map_node_stat *)map-&gt;key;
00789         m-&gt;stats.count++;
00790         m-&gt;stats.sum += val;
00791         <span class="keywordflow">if</span> (val &gt; m-&gt;stats.max)
00792                 m-&gt;stats.max = val;
00793         <span class="keywordflow">if</span> (val &lt; m-&gt;stats.min)
00794                 m-&gt;stats.min = val;
00795         <span class="comment">/* histogram */</span>
00796 }
00797 <span class="comment"></span>
00798 <span class="comment">/** @} */</span>
00799 
00800 <span class="comment">/**********************  List Functions *********************/</span>
00801 <span class="comment"></span>
00802 <span class="comment">/** @addtogroup lists</span>
00803 <span class="comment"> * Lists are special cases of maps.</span>
00804 <span class="comment"> * @b Example:</span>
00805 <span class="comment"> * @include list.c</span>
00806 <span class="comment"> * @{ */</span>
00807 <span class="comment"></span>
00808 <span class="comment">/** Create a new list.</span>
00809 <span class="comment"> * A list is a map that internally has an incrementing long key for each member.</span>
00810 <span class="comment"> * Lists do not wrap if elements are added to exceed their maximum size.</span>
00811 <span class="comment"> * @param max_entries The maximum number of entries allowed. Currently that number will</span>
00812 <span class="comment"> * be preallocated.  If max_entries is 0, there will be no maximum and entries</span>
00813 <span class="comment"> * will be allocated dynamically.</span>
00814 <span class="comment"> * @param type Type of values stored in this list. </span>
00815 <span class="comment"> * @return A MAP on success or NULL on failure.</span>
00816 <span class="comment"> * @sa foreach</span>
00817 <span class="comment"> */</span>
00818 
<a name="l00819"></a><a class="code" href="group__lists.html#ga0">00819</a> <a class="code" href="group__maps.html#ga1">MAP</a> <a class="code" href="group__lists.html#ga0">_stp_list_new</a>(<span class="keywordtype">unsigned</span> max_entries, <span class="keyword">enum</span> valtype type)
00820 {
00821   <a class="code" href="group__maps.html#ga1">MAP</a> map = <a class="code" href="group__maps.html#ga2">_stp_map_new</a> (max_entries, type);
00822   map-&gt;no_wrap = 1;
00823   <span class="keywordflow">return</span> map;
00824 }
00825 <span class="comment"></span>
00826 <span class="comment">/** Clears a list.</span>
00827 <span class="comment"> * All elements in the list are deleted.</span>
00828 <span class="comment"> * @param map </span>
00829 <span class="comment"> */</span>
00830 
<a name="l00831"></a><a class="code" href="group__lists.html#ga1">00831</a> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga1">_stp_list_clear</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00832 {
00833         <span class="keywordflow">if</span> (map == NULL)
00834                 <span class="keywordflow">return</span>;
00835 
00836         <span class="keywordflow">if</span> (!list_empty(&amp;map-&gt;head)) {
00837                 <span class="keyword">struct </span>map_node *ptr = (<span class="keyword">struct </span>map_node *)map-&gt;head.next;
00838 
00839                 <span class="keywordflow">while</span> (ptr &amp;&amp; ptr != (<span class="keyword">struct</span> map_node *)&amp;map-&gt;head) {
00840                         <span class="keyword">struct </span>map_node *next = (<span class="keyword">struct </span>map_node *)ptr-&gt;lnode.next;
00841 
00842                         <span class="comment">/* remove node from old hash list */</span>
00843                         hlist_del_init(&amp;ptr-&gt;hnode);
00844 
00845                         <span class="comment">/* remove from entry list */</span>
00846                         list_del(&amp;ptr-&gt;lnode);
00847                         
00848                         <span class="comment">/* remove any allocated string storage */</span>
00849                         map_free_strings(map, ptr);
00850                         
00851                         <span class="keywordflow">if</span> (map-&gt;maxnum)
00852                                 list_add(&amp;ptr-&gt;lnode, &amp;map-&gt;pool);
00853                         <span class="keywordflow">else</span>
00854                                 <a class="code" href="group__alloc.html#ga4">_stp_free</a>(ptr);
00855 
00856                         map-&gt;num--;
00857                         ptr = next;
00858                 }
00859         }
00860 
00861         <span class="keywordflow">if</span> (map-&gt;num != 0) {
00862                 <a class="code" href="group__io.html#ga2">_stp_log</a> (<span class="stringliteral">"ERROR: list is supposed to be empty (has %d)\n"</span>, map-&gt;num);
00863         }
00864 }
00865 <span class="comment"></span>
00866 <span class="comment">/** Adds a C string to a list.</span>
00867 <span class="comment"> * @param map</span>
00868 <span class="comment"> * @param str</span>
00869 <span class="comment"> * @sa _stp_list_add()</span>
00870 <span class="comment"> */</span>
00871 
<a name="l00872"></a><a class="code" href="group__lists.html#ga2">00872</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga2">_stp_list_add_str</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, <span class="keywordtype">char</span> *str)
00873 {
00874         <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(map, map-&gt;num);
00875         <a class="code" href="group__maps.html#ga19">_stp_map_set_str</a>(map, str);
00876 }
00877 <span class="comment"></span>
00878 <span class="comment">/** Adds a String to a list.</span>
00879 <span class="comment"> * @param map</span>
00880 <span class="comment"> * @param str String to add.</span>
00881 <span class="comment"> * @sa _stp_list_add()</span>
00882 <span class="comment"> */</span>
00883 
<a name="l00884"></a><a class="code" href="group__lists.html#ga3">00884</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga3">_stp_list_add_string</a> (<a class="code" href="group__maps.html#ga1">MAP</a> map, String str)
00885 {
00886         <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(map, map-&gt;num);
00887         <a class="code" href="group__maps.html#ga19">_stp_map_set_str</a>(map, str-&gt;buf);
00888 }
00889 <span class="comment"></span>
00890 <span class="comment">/** Adds an int64 to a list.</span>
00891 <span class="comment"> * @param map</span>
00892 <span class="comment"> * @param val</span>
00893 <span class="comment"> * @sa _stp_list_add()</span>
00894 <span class="comment"> */</span>
00895 
<a name="l00896"></a><a class="code" href="group__lists.html#ga4">00896</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="group__lists.html#ga4">_stp_list_add_int64</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map, int64_t val)
00897 {
00898         <a class="code" href="group__maps.html#ga13">_stp_map_key_long</a>(map, map-&gt;num);
00899         <a class="code" href="group__maps.html#ga16">_stp_map_set_int64</a>(map, val);
00900 }
00901 <span class="comment"></span>
00902 <span class="comment">/** Get the number of elements in a list.</span>
00903 <span class="comment"> * @param map</span>
00904 <span class="comment"> * @returns The number of elements in a list.</span>
00905 <span class="comment"> */</span>
00906 
<a name="l00907"></a><a class="code" href="group__lists.html#ga5">00907</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="group__lists.html#ga5">_stp_list_size</a>(<a class="code" href="group__maps.html#ga1">MAP</a> map)
00908 {
00909         <span class="keywordflow">return</span> map-&gt;num;
00910 }<span class="comment"></span>
00911 <span class="comment">/** @} */</span>
00912 <span class="preprocessor">#endif </span><span class="comment">/* _MAP_C_ */</span>
</pre></div></body></html>