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1.1 misho 1: /*************************************************************************
2: * (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
1.3 ! misho 6: * $Id: vars.c,v 1.2.2.1 2013/03/07 23:04:15 misho Exp $
1.1 misho 7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47:
48:
49: static int
50: vars2buffer(u_char * __restrict buf, int buflen, int be, array_t * __restrict vars)
51: {
52: int Limit = 0;
53: register int i;
54: ait_val_t *v, *val;
55: u_char *dat;
56:
57: assert(buf);
58: assert(vars);
59: if (!buf || !vars)
60: return -1;
61: if (!buflen || !array_Size(vars))
62: return 0;
63: be = !!be;
64:
65: Limit = sizeof(ait_val_t) * array_Size(vars);
66: if (Limit > buflen) {
67: elwix_SetErr(EMSGSIZE, "Short buffer buflen=%d needed min %d",
68: buflen, Limit);
69: return -1;
70: } else {
71: memset(buf, 0, buflen);
72:
73: v = (ait_val_t*) buf;
74: dat = buf + Limit;
75: }
76:
77: /* marshaling */
78: for (i = 0; i < array_Size(vars); i++) {
79: val = array(vars, i, ait_val_t*);
80:
81: v[i].val_type = val->val_type;
82: AIT_IN(&v[i]) = 1;
83: AIT_BE(&v[i]) = be;
84: AIT_LE(&v[i]) = !be;
85: if (AIT_BE(&v[i])) {
86: AIT_KEY(&v[i]) = htobe16(AIT_KEY(val));
87: AIT_LEN(&v[i]) = htobe32(AIT_LEN(val));
88: }
89: if (AIT_LE(&v[i])) {
90: AIT_KEY(&v[i]) = htole16(AIT_KEY(val));
91: AIT_LEN(&v[i]) = htole32(AIT_LEN(val));
92: }
93:
94: switch (AIT_TYPE(val)) {
95: case blob:
96: case f32:
97: case f64:
98: case i8:
99: case i16:
100: case i32:
101: case i64:
102: case u8:
103: case u16:
104: case u32:
105: case u64:
106: if (AIT_BE(&v[i]))
107: v[i].val.net = htobe64(val->val.net);
108: if (AIT_LE(&v[i]))
109: v[i].val.net = htole64(val->val.net);
110: break;
111: case data:
112: if (AIT_LEN(val) > buflen - Limit) {
113: elwix_SetErr(EMSGSIZE, "Short buffer buflen=%d "
114: "needed min %d", buflen, Limit + AIT_LEN(val));
115: return -1;
116: } else
117: Limit += AIT_LEN(val);
118:
119: memcpy(dat, val->val_data, AIT_LEN(val));
120: /* Debug:: data offset in packet, not matter for anything! */
121: v[i].val.net = dat - buf;
122: dat += AIT_LEN(val);
123: break;
124: case buffer:
125: case string:
126: if (AIT_LEN(val) > buflen - Limit) {
127: elwix_SetErr(EMSGSIZE, "Short buffer buflen=%d "
128: "needed min %d", buflen, Limit + AIT_LEN(val));
129: return -1;
130: } else
131: Limit += AIT_LEN(val);
132:
133: memcpy(dat, val->val.buffer, AIT_LEN(val));
134: /* Debug:: data offset in packet, not matter for anything! */
135: v[i].val.net = dat - buf;
136: dat += AIT_LEN(val);
137: break;
138: default:
139: elwix_SetErr(EINVAL, "Unsupported variable type=%d at element #%d",
140: AIT_TYPE(val), i);
141: return -1;
142: }
143: }
144:
145: return Limit;
146: }
147:
148: static array_t *
149: buffer2vars(u_char * __restrict buf, int buflen, int vnum, int zcpy)
150: {
151: array_t *vars;
152: int Limit = 0;
153: register int i;
154: ait_val_t *v, *val;
155: u_char *dat;
156:
157: assert(buf);
158: if (!buf || !buflen || !vnum)
159: return NULL;
160:
161: Limit = sizeof(ait_val_t) * vnum;
162: if (Limit > buflen) {
163: elwix_SetErr(EMSGSIZE, "Short buffer buflen=%d needed min %d",
164: buflen, Limit);
165: return NULL;
166: } else {
167: if (!(vars = array_Init(vnum)))
168: return NULL;
169:
170: v = (ait_val_t*) buf;
171: dat = buf + Limit;
172: }
173:
174: /* de-marshaling */
175: for (i = 0; i < array_Size(vars); i++) {
176: if (!zcpy) {
177: val = e_malloc(sizeof(ait_val_t));
178: if (!val) {
179: if (!zcpy)
180: array_Free(vars);
181: array_Destroy(&vars);
182: return NULL;
183: }
184: AIT_IN(val) = 0;
185: } else {
186: val = v + i;
187: AIT_IN(val) = 1;
188: }
189: array_Set(vars, i, val);
190:
191: val->val_type = v[i].val_type;
192: AIT_BE(val) = AIT_BE(&v[i]);
193: AIT_LE(val) = AIT_LE(&v[i]);
194: if (AIT_BE(val)) {
195: AIT_LEN(val) = be32toh(AIT_LEN(&v[i]));
196: AIT_KEY(val) = be16toh(AIT_KEY(&v[i]));
197: }
198: if (AIT_LE(val)) {
199: AIT_LEN(val) = le32toh(AIT_LEN(&v[i]));
200: AIT_KEY(val) = le16toh(AIT_KEY(&v[i]));
201: }
202:
203: switch (AIT_TYPE(val)) {
204: case blob:
205: case f32:
206: case f64:
207: case i8:
208: case i16:
209: case i32:
210: case i64:
211: case u8:
212: case u16:
213: case u32:
214: case u64:
215: if (AIT_BE(val))
216: val->val.net = be64toh(v[i].val.net);
217: if (AIT_LE(val))
218: val->val.net = le64toh(v[i].val.net);
219: break;
220: case data:
221: /* WARNING:: remap data type to buffer */
222: val->val_type = buffer;
223: case buffer:
224: case string:
225: if (!zcpy) {
226: val->val.buffer = e_malloc(AIT_LEN(val));
227: if (!val->val.buffer) {
228: array_Free(vars);
229: array_Destroy(&vars);
230: return NULL;
231: } else
232: memcpy(val->val.buffer, dat, AIT_LEN(val));
233: } else
234: val->val.buffer = dat;
235: dat += AIT_LEN(val);
236: break;
237: default:
238: elwix_SetErr(EINVAL, "Unsupported variable type=%d at element #%d",
239: AIT_TYPE(val), i);
240: if (!zcpy)
241: array_Free(vars);
242: array_Destroy(&vars);
243: return NULL;
244: }
245: }
246:
247: return vars;
248: }
249:
250:
251: /* buffer marshaling with swapping bytes to network order */
252:
253: /*
254: * ait_vars2buffer() - Marshaling data from array with variables to buffer
255: *
256: * @buf = Buffer
257: * @buflen = Size of buffer
258: * @vars = Variable array
259: * return: -1 error, 0 nothing done or >0 size of marshaled data
260: */
261: inline int
262: ait_vars2buffer(u_char * __restrict buf, int buflen, array_t * __restrict vars)
263: {
264: return vars2buffer(buf, buflen, 42, vars);
265: }
266:
267: /*
268: * ait_buffer2vars() - De-marshaling data from buffer to array with variables
269: *
270: * @buf = Buffer
271: * @buflen = Size of buffer
272: * @vnum = Number of variables into buffer
273: * @zcpy = Zero-copy for variables, if !=0 don't use array_Free() for free variables and
274: *DON'T MODIFY OR DESTROY BUFFER*. =0 call array_Free() before array_Destroy()
275: * return: =NULL error, !=NULL allocated variable array, after use must free with array_Destroy()
276: */
277: inline array_t *
278: ait_buffer2vars(u_char * __restrict buf, int buflen, int vnum, int zcpy)
279: {
280: return buffer2vars(buf, buflen, vnum, zcpy);
281: }
282:
283: /* buffer marshaling without swapping bytes to network order */
284:
285: /*
286: * ait_vars2map() - Marshaling data from array with variables to memory map
287: *
288: * @buf = Buffer
289: * @buflen = Size of buffer
290: * @vars = Variable array
291: * return: -1 error, 0 nothing done or >0 size of marshaled data
292: */
293: inline int
294: ait_vars2map(u_char *buf, int buflen, array_t *vars)
295: {
296: return vars2buffer(buf, buflen, 0, vars);
297: }
298:
299: /*
300: * ait_map2vars() - De-marshaling data from memory map to array with variables
301: *
302: * @buf = Buffer
303: * @buflen = Size of buffer
304: * @vnum = Number of variables into buffer
305: * @zcpy = Zero-copy for variables, if !=0 don't use array_Free() for free variables and
306: *DON'T MODIFY OR DESTROY BUFFER*. =0 call array_Free() before array_Destroy()
307: * return: =NULL error, !=NULL allocated variable array, after use must free with array_Destroy()
308: */
309: inline array_t *
310: ait_map2vars(u_char *buf, int buflen, int vnum, int zcpy)
311: {
312: return buffer2vars(buf, buflen, vnum, zcpy);
313: }
314:
315:
316: /* variables array */
317:
318: /*
319: * ait_allocVars() - Allocate ait_val_t array
320: *
321: * @varnum = Number of variables
322: * return: =NULL error or !=NULL allocated array
323: */
324: inline array_t *
325: ait_allocVars(int varnum)
326: {
327: array_t *arr;
328: register int i;
329: ait_val_t *v;
330:
331: if (!(arr = array_Init(varnum)))
332: return NULL;
333:
334: for (i = 0; i < array_Size(arr); i++) {
335: if (!(v = ait_allocVar())) {
336: ait_freeVars(&arr);
337: return NULL;
338: } else
339: array_Set(arr, i, v);
340: }
341:
342: return arr;
343: }
344:
345: /*
346: * ait_getVars() - Get ait_val_t element from array and if not exists allocate it
347: *
348: * @vars = Variable array
349: * @n = index of variable into array
350: * return: NULL error or !=NULL ait_val_t element
351: */
352: inline ait_val_t *
353: ait_getVars(array_t ** __restrict vars, int n)
354: {
355: register int i;
356: ait_val_t *v;
357:
358: if (!vars)
359: return NULL;
360:
361: if (!*vars) {
362: if (!(*vars = ait_allocVars(n + 1)))
363: return NULL;
364: } else if (n >= (i = array_Size(*vars))) {
365: if (array_Grow(*vars, n + 1, 0))
366: return NULL;
367: for (; i < array_Size(*vars); i++)
368: if (!array_Get(*vars, i)) {
369: if (!(v = ait_allocVar()))
370: return NULL;
371: else
372: array_Set(*vars, i, v);
373: }
374: }
375:
376: return array(*vars, n, ait_val_t*);
377: }
378:
379: /*
380: * ait_clrVars() - Clear ait_val_t elements from array
381: *
382: * @vars = Variable array
383: * return: -1 error or size of array
384: */
385: inline int
386: ait_clrVars(array_t * __restrict vars)
387: {
388: register int i;
389: ait_val_t *v;
390:
391: if (!vars)
392: return -1;
393:
394: for (i = 0; i < array_Size(vars); i++)
395: if ((v = array(vars, i, ait_val_t*)))
396: AIT_FREE_VAL(v);
397:
398: return array_Size(vars);
399: }
400:
401: /*
402: * ait_freeVars() - Free ait_val_t array
403: *
404: * @vars = Variable array
405: * return: none
406: */
407: inline void
408: ait_freeVars(array_t ** __restrict vars)
409: {
410: if (!vars || !*vars)
411: return;
412:
413: ait_clrVars(*vars);
414: array_Free(*vars);
415: array_Destroy(vars);
416: }
417:
418:
419: /*
420: * ait_allocVar() - Allocate memory for variable
421: *
422: * return: NULL error or new variable, after use free variable with ait_freeVar()
423: */
424: inline ait_val_t *
425: ait_allocVar(void)
426: {
427: ait_val_t *v = NULL;
428:
429: v = e_malloc(sizeof(ait_val_t));
430: if (!v)
431: return NULL;
432: else
433: memset(v, 0, sizeof(ait_val_t));
434: v->val_type = empty;
435:
436: return v;
437: }
438:
439: /*
440: * ait_freeVar() - Free allocated memory for variable
441: *
442: * @val = Variable
443: * return: none
444: */
445: inline void
446: ait_freeVar(ait_val_t ** __restrict val)
447: {
448: if (val && *val) {
449: AIT_FREE_VAL(*val);
450: e_free(*val);
451: *val = NULL;
452: }
453: }
454:
455: /*
456: * ait_makeVar() - Allocate memory and fill variable
457: *
458: * @type = type of variable
459: * @... = arg1 is value of variable
460: * @... = arg2 is length of variabla. Not required for numbers and strings!
461: * return: NULL error or new variable, after use free variable with io_freeVar()
462: */
463: ait_val_t *
464: ait_makeVar(ait_type_t type, ...)
465: {
466: ait_val_t *v = NULL;
467: va_list lst;
468: void *p = NULL;
469: uint32_t len = 0;
470: uint64_t n = 0LL;
471:
472: v = ait_allocVar();
473: if (!v)
474: return NULL;
475:
476: va_start(lst, type);
477: switch (type) {
478: case empty:
479: v->val_type = (uint8_t) empty;
480: break;
481: case ptr:
482: p = va_arg(lst, void*);
483: len = va_arg(lst, uint32_t);
484: AIT_SET_PTR(v, p, len);
485: break;
486: case data:
487: p = va_arg(lst, void*);
488: len = va_arg(lst, uint32_t);
489: AIT_SET_DATA(v, p, len);
490: break;
491: case buffer:
492: p = va_arg(lst, void*);
493: len = va_arg(lst, uint32_t);
494: AIT_SET_BUF(v, p, len);
495: break;
496: case string:
497: p = va_arg(lst, char*);
498: AIT_SET_STR(v, (char*) p);
499: break;
500: case blob:
501: n = va_arg(lst, uint32_t);
502: len = va_arg(lst, uint32_t);
503: AIT_SET_BLOB(v, n, len);
504: break;
505: case f32:
506: AIT_SET_F32(v, (float) va_arg(lst, double));
507: break;
508: case f64:
509: AIT_SET_F64(v, va_arg(lst, double));
510: break;
511: case u8:
512: AIT_SET_U8(v, (uint8_t) va_arg(lst, int));
513: break;
514: case u16:
515: AIT_SET_U16(v, (uint16_t) va_arg(lst, int));
516: break;
517: case u32:
518: AIT_SET_U32(v, va_arg(lst, uint32_t));
519: break;
520: case u64:
521: AIT_SET_U64(v, va_arg(lst, uint64_t));
522: break;
523: case i8:
524: AIT_SET_I8(v, (int8_t) va_arg(lst, int));
525: break;
526: case i16:
527: AIT_SET_I16(v, (int16_t) va_arg(lst, int));
528: break;
529: case i32:
530: AIT_SET_I32(v, va_arg(lst, int32_t));
531: break;
532: case i64:
533: AIT_SET_I64(v, va_arg(lst, int64_t));
534: break;
535: }
536: va_end(lst);
537:
538: return v;
539: }
540:
541: static int
542: _cmp_arr_key_asc(const void *a, const void *b)
543: {
544: return AIT_KEY(*(ait_val_t**) a) - AIT_KEY(*(ait_val_t**) b);
545: }
546:
547: static int
548: _cmp_arr_key_desc(const void *a, const void *b)
549: {
550: return AIT_KEY(*(ait_val_t**) b) - AIT_KEY(*(ait_val_t**) a);
551: }
552:
553: static int
554: _cmp_arr_val_asc(const void *a, const void *b)
555: {
556: return AIT_RAW(*(ait_val_t**) a) - AIT_RAW(*(ait_val_t**) b);
557: }
558:
559: static int
560: _cmp_arr_val_desc(const void *a, const void *b)
561: {
562: return AIT_RAW(*(ait_val_t**) b) - AIT_RAW(*(ait_val_t**) a);
563: }
564:
565: /*
566: * ait_sortVarsByVal() - Sorting array with variables by value
567: *
568: * @vars = Variable array
569: * @order = Sort order. If =0 ascend or !=0 descend
570: * @cmp = Custom compare function for sorting. If =NULL compare by value
571: * return: none
572: */
573: inline void
574: ait_sortVarsByVal(array_t * __restrict vars, int order, int (*cmp)(const void*, const void*))
575: {
576: if (!vars)
577: return;
578:
579: if (cmp)
1.2 misho 580: qsort(vars->arr_data, vars->arr_num, sizeof(uintptr_t), cmp);
1.1 misho 581: else if (order)
1.2 misho 582: qsort(vars->arr_data, vars->arr_num, sizeof(uintptr_t), _cmp_arr_val_desc);
1.1 misho 583: else
1.2 misho 584: qsort(vars->arr_data, vars->arr_num, sizeof(uintptr_t), _cmp_arr_val_asc);
1.1 misho 585: }
586:
587: /*
588: * ait_sortVarsByKey() - Sorting array with variables by key
589: *
590: * @vars = Variable array
591: * @order = Sort order. If =0 ascend or !=0 descend
592: * return: none
593: */
594: inline void
595: ait_sortVarsByKey(array_t * __restrict vars, int order)
596: {
597: if (!vars)
598: return;
599:
600: if (order)
1.2 misho 601: qsort(vars->arr_data, vars->arr_num, sizeof(uintptr_t), _cmp_arr_key_desc);
1.1 misho 602: else
1.2 misho 603: qsort(vars->arr_data, vars->arr_num, sizeof(uintptr_t), _cmp_arr_key_asc);
1.1 misho 604: }
605:
606: /*
607: * ait_findKeyVars() - Find variable by key from array
608: *
609: * @vars = Variables
610: * @key = Search key
611: * return: NULL error or not found, !=NULL valid element
612: */
613: ait_val_t *
614: ait_findKeyVars(array_t * __restrict vars, u_short key)
615: {
616: array_t *tmp;
617: ait_val_t **vv, *v = NULL;
618: register int i;
619: const u_char *p;
620:
621: if (!vars)
622: return NULL;
623:
624: if (array_Copy(&tmp, vars) == -1)
625: return NULL;
626: else
1.2 misho 627: qsort(tmp->arr_data, tmp->arr_num, sizeof(uintptr_t), _cmp_arr_key_asc);
1.1 misho 628:
629: /* binary search */
630: for (p = (const u_char*) tmp->arr_data, i = array_Size(tmp); i; i >>= 1) {
1.2 misho 631: vv = (ait_val_t**) (p + (i >> 1) * sizeof(uintptr_t));
1.1 misho 632: if (!(key - AIT_KEY(*vv))) { /* found! */
633: v = *vv;
634: break;
635: }
636: if ((key - AIT_KEY(*vv)) > 0) { /* move right key > current */
1.2 misho 637: p = (const u_char*) vv + sizeof(uintptr_t);
1.1 misho 638: i--;
639: } /* else move left */
640: }
641:
642: array_Destroy(&tmp);
643: return v;
644: }
645:
646: /*
647: * ait_hashVar() - Generate hash key for variable from string or value
648: *
649: * @v = variable
650: * @key = key string for hash, if =NULL hash will built from variable
651: * return: hash key
652: */
653: u_short
654: ait_hashVar(ait_val_t * __restrict v, const char * __restrict key)
655: {
656: void *p;
657: u_short cksum;
658: int l;
659:
660: if (!v)
661: return 0;
662:
663: if (key) {
664: p = (void*) key;
665: l = (strlen(key) + 1) / 2;
666: } else {
667: switch (AIT_TYPE(v)) {
668: case empty:
669: AIT_KEY(v) = 0;
670: return 0;
671: case string:
672: case buffer:
673: p = AIT_ADDR(v);
674: l = AIT_LEN(v) / 2;
675: break;
676: case data:
677: p = v->val_data;
678: l = AIT_LEN(v) / 2;
679: break;
680: default:
681: p = &AIT_RAW(v);
682: l = sizeof AIT_RAW(v) / 2;
683: break;
684: }
685: }
686:
687: cksum = crcFletcher16((u_short*) p, l);
688:
689: if (AIT_BE(v))
690: AIT_KEY(v) = htobe16(cksum);
691: else if (AIT_LE(v))
692: AIT_KEY(v) = htole16(cksum);
693: else
694: AIT_KEY(v) = cksum;
695:
696: return AIT_KEY(v);
697: }
698:
699: /*
700: * ait_hashKeyVars() - Generate hash keys for variables
701: *
702: * @vars = Variables
703: * return -1 error or 0 ok
704: */
705: inline int
706: ait_hashKeyVars(array_t * __restrict vars)
707: {
708: register int i;
709:
710: if (!vars)
711: return -1;
712:
713: for (i = 0; i < array_Size(vars); i++)
714: ait_hashVar(array(vars, i, ait_val_t*), NULL);
715:
716: return 0;
717: }
718:
719: /*
720: * ait_findKeyHash() - Find variable by hash string from array
721: *
722: * @vars = Variables
723: * @key = Search string
724: * return: NULL error or not found, !=NULL valid element
725: */
726: inline ait_val_t *
727: ait_findKeyHash(array_t * __restrict vars, const char * __restrict key)
728: {
729: u_short k = 0;
730:
731: if (!vars || !key)
732: return NULL;
733:
734: k = crcFletcher16((u_short*) key, (strlen(key) + 1) / 2);
735: return ait_findKeyVars(vars, k);
736: }
737:
738: /*
739: * ait_sprintfVar() - Builtin string variable from formatted input
740: *
741: * @v = variable
742: * @fmt = format string
743: * @... = argument(s)
744: * return: -1 error or >0 copied bytes to variable
745: */
746: int
1.2 misho 747: ait_sprintfVar(ait_val_t * __restrict v, const char *fmt, ...)
1.1 misho 748: {
749: int ret = 0;
750: va_list lst;
751: char *str = NULL;
752:
753: if (!v || !fmt)
754: return -1;
755:
756: va_start(lst, fmt);
757: ret = vasprintf(&str, fmt, lst);
758: va_end(lst);
759:
760: if (str && ret > -1) {
761: AIT_FREE_VAL(v);
762: AIT_SET_STR(v, str);
763: } else
764: LOGERR;
765:
766: if (str)
767: free(str);
768: return ret;
769: }
770:
771: /*
772: * ait_setlikeVar() - Set variable like ...
773: *
774: * @v = variable
775: * @t = type of data
776: * @l = length of data
777: * @... = data
778: * return: -1 error or 0 ok
779: */
780: inline int
781: ait_setlikeVar(ait_val_t * __restrict v, ait_type_t t, u_int l, ...)
782: {
783: va_list lst;
784:
785: if (!v)
786: return -1;
787:
788: AIT_FREE_VAL(v);
789: AIT_INIT_VAL2(v, t);
790: AIT_LEN(v) = l;
791: AIT_IN(v) = 1;
792:
793: va_start(lst, l);
794: switch (AIT_TYPE(v)) {
795: case ptr:
796: case buffer:
797: case string:
798: AIT_ADDR(v) = va_arg(lst, void*);
799: break;
800: default:
801: AIT_RAW(v) = va_arg(lst, uint64_t);
802: break;
803: }
804: va_end(lst);
805:
806: return 0;
807: }
808:
809: /*
810: * ait_getlikeVar() - Get variable like ...
811: *
812: * @v = variable
813: * return: return raw data
814: */
815: inline uint64_t
816: ait_getlikeVar(ait_val_t * __restrict v)
817: {
818: if (!v)
819: return (uintptr_t) -1;
820:
821: return AIT_RAW(v);
822: }
823:
824: /*
825: * ait_cmpVar() - Compare two variables
826: *
827: * @a = 1st variable
828: * @b = 2nd variable
829: * return: 0 is equal or !=0 is different
830: */
831: inline int
832: ait_cmpVar(ait_val_t * __restrict a, ait_val_t * __restrict b)
833: {
834: intptr_t ret;
835:
836: if (!(ret = (a - b)))
837: return ret;
838: if ((ret = AIT_TYPE(a) - AIT_TYPE(b)))
839: return ret;
840: if ((ret = AIT_LEN(a) - AIT_LEN(b)))
841: return ret;
842:
843: switch (AIT_TYPE(a)) {
844: case buffer:
845: ret = memcmp(AIT_GET_BUF(a), AIT_GET_BUF(b), AIT_LEN(a));
846: break;
847: case string:
848: ret = strncmp(AIT_GET_STR(a), AIT_GET_STR(b), AIT_LEN(a));
849: break;
850: case data:
851: ret = memcmp(AIT_GET_DATA(a), AIT_GET_DATA(b), AIT_LEN(a));
852: break;
853: case ptr:
854: ret = AIT_ADDR(a) - AIT_ADDR(b);
855: break;
856: default:
857: ret = AIT_RAW(a) - AIT_RAW(b);
858: break;
859: }
860:
861: return (int) ret;
862: }