libaitio/src/vars.c - diff

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Diff for /libaitio/src/Attic/vars.c between versions 1.3 and 1.10

version 1.3, 2011/12/13 02:23:08	version 1.10, 2012/07/03 08:51:05
Line 12 terms:	Line 12 terms:
All of the documentation and software included in the ELWIX and AITNET	All of the documentation and software included in the ELWIX and AITNET
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>	Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>

Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011	Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
by Michael Pounov <misho@elwix.org>. All rights reserved.	by Michael Pounov <misho@elwix.org>. All rights reserved.

Redistribution and use in source and binary forms, with or without	Redistribution and use in source and binary forms, with or without
Line 47 SUCH DAMAGE.	Line 47 SUCH DAMAGE.


/*	/*
* io_vars2buffer() Marshaling data from array with variables to buffer	* io_vars2buffer() - Marshaling data from array with variables to buffer
	*
* @buf = Buffer	* @buf = Buffer
* @buflen = Size of buffer	* @buflen = Size of buffer
* @vars = Variable array	* @vars = Variable array
Line 59 io_vars2buffer(u_char buf, int buflen, array_t vars)	Line 60 io_vars2buffer(u_char buf, int buflen, array_t vars)
int Limit = 0;	int Limit = 0;
register int i;	register int i;
ait_val_t v, val;	ait_val_t v, val;
u_char *data;	u_char *dat;

assert(buf);	assert(buf);
assert(vars);	assert(vars);
Line 70 io_vars2buffer(u_char buf, int buflen, array_t vars)	Line 71 io_vars2buffer(u_char buf, int buflen, array_t vars)

Limit = sizeof(ait_val_t) * io_arraySize(vars);	Limit = sizeof(ait_val_t) * io_arraySize(vars);
if (Limit > buflen) {	if (Limit > buflen) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d needed min %d ...\n",	io_SetErr(EMSGSIZE, "Short buffer buflen=%d needed min %d",
buflen, Limit);	buflen, Limit);
return -1;	return -1;
} else {	} else {
memset(buf, 0, buflen);	memset(buf, 0, buflen);

v = (ait_val_t*) buf;	v = (ait_val_t*) buf;
data = buf + Limit;	dat = buf + Limit;
}	}

/* marshaling */	/* marshaling */
Line 85 io_vars2buffer(u_char buf, int buflen, array_t vars)	Line 86 io_vars2buffer(u_char buf, int buflen, array_t vars)
val = io_array(vars, i, ait_val_t*);	val = io_array(vars, i, ait_val_t*);

v[i].val_type = val->val_type;	v[i].val_type = val->val_type;
	AIT_KEY(&v[i]) = htobe16(AIT_KEY(val));
AIT_LEN(&v[i]) = htobe32(AIT_LEN(val));	AIT_LEN(&v[i]) = htobe32(AIT_LEN(val));

switch (AIT_TYPE(val)) {	switch (AIT_TYPE(val)) {
Line 101 io_vars2buffer(u_char buf, int buflen, array_t vars)	Line 103 io_vars2buffer(u_char buf, int buflen, array_t vars)
case u64:	case u64:
v[i].val.net = htobe64(val->val.net);	v[i].val.net = htobe64(val->val.net);
break;	break;
	case data:
	if (AIT_LEN(val) > buflen - Limit) {
	io_SetErr(EMSGSIZE, "Short buffer buflen=%d "
	"needed min %d", buflen, Limit + AIT_LEN(val));
	return -1;
	} else
	Limit += AIT_LEN(val);

	memcpy(dat, val->val_data, AIT_LEN(val));
	/* Debug:: data offset in packet, not matter for anything! */
	v[i].val.net = dat - buf;
	dat += AIT_LEN(val);
	break;
case buffer:	case buffer:
case string:	case string:
if (AIT_LEN(val) > buflen - Limit) {	if (AIT_LEN(val) > buflen - Limit) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d "	io_SetErr(EMSGSIZE, "Short buffer buflen=%d "
"needed min %d ...\n", buflen, Limit + AIT_LEN(val));	"needed min %d", buflen, Limit + AIT_LEN(val));
return -1;	return -1;
} else	} else
Limit += AIT_LEN(val);	Limit += AIT_LEN(val);

memcpy(data, val->val.buffer, AIT_LEN(val));	memcpy(dat, val->val.buffer, AIT_LEN(val));
/* Debug:: data offset in packet, not matter for anything! */	/* Debug:: data offset in packet, not matter for anything! */
v[i].val.net = data - buf;	v[i].val.net = dat - buf;
data += AIT_LEN(val);	dat += AIT_LEN(val);
break;	break;
default:	default:
io_SetErr(EINVAL, "Error:: unsupported variable type=%d at element #%d ...\n",	io_SetErr(EINVAL, "Unsupported variable type=%d at element #%d",
AIT_TYPE(val), i);	AIT_TYPE(val), i);
return -1;	return -1;
}	}
Line 126 io_vars2buffer(u_char buf, int buflen, array_t vars)	Line 141 io_vars2buffer(u_char buf, int buflen, array_t vars)
}	}

/*	/*
* io_buffer2vars() De-marshaling data from buffer to array with variables	* io_buffer2vars() - De-marshaling data from buffer to array with variables
	*
* @buf = Buffer	* @buf = Buffer
* @buflen = Size of buffer	* @buflen = Size of buffer
* @vnum = Number of variables into buffer	* @vnum = Number of variables into buffer
Line 141 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 157 io_buffer2vars(u_char *buf, int buflen, int vnum, int
int Limit = 0;	int Limit = 0;
register int i;	register int i;
ait_val_t v, val;	ait_val_t v, val;
u_char *data;	u_char *dat;

assert(buf);	assert(buf);
if (!buf \|\| !buflen \|\| !vnum)	if (!buf \|\| !buflen \|\| !vnum)
Line 149 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 165 io_buffer2vars(u_char *buf, int buflen, int vnum, int

Limit = sizeof(ait_val_t) * vnum;	Limit = sizeof(ait_val_t) * vnum;
if (Limit > buflen) {	if (Limit > buflen) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d needed min %d ...\n",	io_SetErr(EMSGSIZE, "Short buffer buflen=%d needed min %d",
buflen, Limit);	buflen, Limit);
return NULL;	return NULL;
} else {	} else {
Line 157 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 173 io_buffer2vars(u_char *buf, int buflen, int vnum, int
return NULL;	return NULL;

v = (ait_val_t*) buf;	v = (ait_val_t*) buf;
data = buf + Limit;	dat = buf + Limit;
}	}

/* de-marshaling */	/* de-marshaling */
for (i = 0; i < io_arraySize(vars); i++) {	for (i = 0; i < io_arraySize(vars); i++) {
if (!zcpy) {	if (!zcpy) {
val = malloc(sizeof(ait_val_t));	val = io_malloc(sizeof(ait_val_t));
if (!val) {	if (!val) {
LOGERR;	LOGERR;
io_arrayFree(vars);	io_arrayFree(vars);
Line 177 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 193 io_buffer2vars(u_char *buf, int buflen, int vnum, int
val->val_type = v[i].val_type;	val->val_type = v[i].val_type;
#if defined(__OpenBSD__)	#if defined(__OpenBSD__)
AIT_LEN(val) = betoh32(AIT_LEN(&v[i]));	AIT_LEN(val) = betoh32(AIT_LEN(&v[i]));
	AIT_KEY(val) = betoh16(AIT_KEY(&v[i]));
#else	#else
AIT_LEN(val) = be32toh(AIT_LEN(&v[i]));	AIT_LEN(val) = be32toh(AIT_LEN(&v[i]));
	AIT_KEY(val) = be16toh(AIT_KEY(&v[i]));
#endif	#endif

switch (AIT_TYPE(val)) {	switch (AIT_TYPE(val)) {
Line 199 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 217 io_buffer2vars(u_char *buf, int buflen, int vnum, int
val->val.net = be64toh(v[i].val.net);	val->val.net = be64toh(v[i].val.net);
#endif	#endif
break;	break;
	case data:
	/* WARNING:: remap data type to buffer */
	val->val_type = buffer;
case buffer:	case buffer:
case string:	case string:
if (AIT_LEN(val) > buflen - Limit) {	if (AIT_LEN(val) > buflen - Limit) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d "	io_SetErr(EMSGSIZE, "Short buffer buflen=%d "
"needed min %d ...\n", buflen, Limit + AIT_LEN(val));	"needed min %d", buflen, Limit + AIT_LEN(val));
if (!zcpy)	if (!zcpy)
io_arrayFree(vars);	io_arrayFree(vars);
io_arrayDestroy(&vars);	io_arrayDestroy(&vars);
Line 212 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 233 io_buffer2vars(u_char *buf, int buflen, int vnum, int
Limit += AIT_LEN(val);	Limit += AIT_LEN(val);

if (!zcpy) {	if (!zcpy) {
val->val.buffer = malloc(AIT_LEN(val));	val->val.buffer = io_malloc(AIT_LEN(val));
if (!val->val.buffer) {	if (!val->val.buffer) {
LOGERR;	LOGERR;
io_arrayFree(vars);	io_arrayFree(vars);
io_arrayDestroy(&vars);	io_arrayDestroy(&vars);
return NULL;	return NULL;
} else	} else
memcpy(val->val.buffer, data, AIT_LEN(val));	memcpy(val->val.buffer, dat, AIT_LEN(val));
} else	} else
val->val.buffer = data;	val->val.buffer = dat;
data += AIT_LEN(val);	dat += AIT_LEN(val);
break;	break;
default:	default:
io_SetErr(EINVAL, "Error:: unsupported variable type=%d at element #%d ...\n",	io_SetErr(EINVAL, "Unsupported variable type=%d at element #%d",
AIT_TYPE(val), i);	AIT_TYPE(val), i);
if (!zcpy)	if (!zcpy)
io_arrayFree(vars);	io_arrayFree(vars);
Line 240 io_buffer2vars(u_char *buf, int buflen, int vnum, int	Line 261 io_buffer2vars(u_char *buf, int buflen, int vnum, int
/* buffer marshaling without swapping bytes to network order */	/* buffer marshaling without swapping bytes to network order */

/*	/*
* io_vars2map() Marshaling data from array with variables to memory map	* io_vars2map() - Marshaling data from array with variables to memory map
	*
* @buf = Buffer	* @buf = Buffer
* @buflen = Size of buffer	* @buflen = Size of buffer
* @vars = Variable array	* @vars = Variable array
Line 252 io_vars2map(u_char buf, int buflen, array_t vars)	Line 274 io_vars2map(u_char buf, int buflen, array_t vars)
int Limit = 0;	int Limit = 0;
register int i;	register int i;
ait_val_t v, val;	ait_val_t v, val;
u_char *data;	u_char *dat;

assert(buf);	assert(buf);
assert(vars);	assert(vars);
Line 263 io_vars2map(u_char buf, int buflen, array_t vars)	Line 285 io_vars2map(u_char buf, int buflen, array_t vars)

Limit = sizeof(ait_val_t) * io_arraySize(vars);	Limit = sizeof(ait_val_t) * io_arraySize(vars);
if (Limit > buflen) {	if (Limit > buflen) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d needed min %d ...\n",	io_SetErr(EMSGSIZE, "Short buffer buflen=%d needed min %d",
buflen, Limit);	buflen, Limit);
return -1;	return -1;
} else {	} else {
memset(buf, 0, buflen);	memset(buf, 0, buflen);

v = (ait_val_t*) buf;	v = (ait_val_t*) buf;
data = buf + Limit;	dat = buf + Limit;
}	}

/* marshaling */	/* marshaling */
Line 278 io_vars2map(u_char buf, int buflen, array_t vars)	Line 300 io_vars2map(u_char buf, int buflen, array_t vars)
val = io_array(vars, i, ait_val_t*);	val = io_array(vars, i, ait_val_t*);

v[i].val_type = val->val_type;	v[i].val_type = val->val_type;
	AIT_KEY(&v[i]) = AIT_KEY(val);
AIT_LEN(&v[i]) = AIT_LEN(val);	AIT_LEN(&v[i]) = AIT_LEN(val);

switch (AIT_TYPE(val)) {	switch (AIT_TYPE(val)) {
Line 294 io_vars2map(u_char buf, int buflen, array_t vars)	Line 317 io_vars2map(u_char buf, int buflen, array_t vars)
case u64:	case u64:
v[i].val.net = val->val.net;	v[i].val.net = val->val.net;
break;	break;
	case data:
	if (AIT_LEN(val) > buflen - Limit) {
	io_SetErr(EMSGSIZE, "Short buffer buflen=%d "
	"needed min %d", buflen, Limit + AIT_LEN(val));
	return -1;
	} else
	Limit += AIT_LEN(val);

	memcpy(dat, val->val_data, AIT_LEN(val));
	/* Debug:: data offset in packet, not matter for anything! */
	v[i].val.net = dat - buf;
	dat += AIT_LEN(val);
	break;
case buffer:	case buffer:
case string:	case string:
if (AIT_LEN(val) > buflen - Limit) {	if (AIT_LEN(val) > buflen - Limit) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d "	io_SetErr(EMSGSIZE, "Short buffer buflen=%d "
"needed min %d ...\n", buflen, Limit + AIT_LEN(val));	"needed min %d", buflen, Limit + AIT_LEN(val));
return -1;	return -1;
} else	} else
Limit += AIT_LEN(val);	Limit += AIT_LEN(val);

memcpy(data, val->val.buffer, AIT_LEN(val));	memcpy(dat, val->val.buffer, AIT_LEN(val));
/* Debug:: data offset in packet, not matter for anything! */	/* Debug:: data offset in packet, not matter for anything! */
v[i].val.net = data - buf;	v[i].val.net = dat - buf;
data += AIT_LEN(val);	dat += AIT_LEN(val);
break;	break;
default:	default:
io_SetErr(EINVAL, "Error:: unsupported variable type=%d at element #%d ...\n",	io_SetErr(EINVAL, "Unsupported variable type=%d at element #%d",
AIT_TYPE(val), i);	AIT_TYPE(val), i);
return -1;	return -1;
}	}
Line 319 io_vars2map(u_char buf, int buflen, array_t vars)	Line 355 io_vars2map(u_char buf, int buflen, array_t vars)
}	}

/*	/*
* io_map2vars() De-marshaling data from memory map to array with variables	* io_map2vars() - De-marshaling data from memory map to array with variables
	*
* @buf = Buffer	* @buf = Buffer
* @buflen = Size of buffer	* @buflen = Size of buffer
* @vnum = Number of variables into buffer	* @vnum = Number of variables into buffer
Line 334 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 371 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
int Limit = 0;	int Limit = 0;
register int i;	register int i;
ait_val_t v, val;	ait_val_t v, val;
u_char *data;	u_char *dat;

assert(buf);	assert(buf);
if (!buf \|\| !buflen \|\| !vnum)	if (!buf \|\| !buflen \|\| !vnum)
Line 342 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 379 io_map2vars(u_char *buf, int buflen, int vnum, int zcp

Limit = sizeof(ait_val_t) * vnum;	Limit = sizeof(ait_val_t) * vnum;
if (Limit > buflen) {	if (Limit > buflen) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d needed min %d ...\n",	io_SetErr(EMSGSIZE, "Short buffer buflen=%d needed min %d",
buflen, Limit);	buflen, Limit);
return NULL;	return NULL;
} else {	} else {
Line 350 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 387 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
return NULL;	return NULL;

v = (ait_val_t*) buf;	v = (ait_val_t*) buf;
data = buf + Limit;	dat = buf + Limit;
}	}

/* de-marshaling */	/* de-marshaling */
for (i = 0; i < io_arraySize(vars); i++) {	for (i = 0; i < io_arraySize(vars); i++) {
if (!zcpy) {	if (!zcpy) {
val = malloc(sizeof(ait_val_t));	val = io_malloc(sizeof(ait_val_t));
if (!val) {	if (!val) {
LOGERR;	LOGERR;
io_arrayFree(vars);	io_arrayFree(vars);
Line 368 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 405 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
io_arraySet(vars, i, val);	io_arraySet(vars, i, val);

val->val_type = v[i].val_type;	val->val_type = v[i].val_type;
	AIT_KEY(val) = AIT_KEY(&v[i]);
AIT_LEN(val) = AIT_LEN(&v[i]);	AIT_LEN(val) = AIT_LEN(&v[i]);

switch (AIT_TYPE(val)) {	switch (AIT_TYPE(val)) {
Line 384 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 422 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
case u64:	case u64:
val->val.net = v[i].val.net;	val->val.net = v[i].val.net;
break;	break;
	case data:
	/* WARNING:: remap data type to buffer */
	val->val_type = buffer;
case buffer:	case buffer:
case string:	case string:
if (AIT_LEN(val) > buflen - Limit) {	if (AIT_LEN(val) > buflen - Limit) {
io_SetErr(EMSGSIZE, "Error:: too short buffer buflen=%d "	io_SetErr(EMSGSIZE, "short buffer buflen=%d "
"needed min %d ...\n", buflen, Limit + AIT_LEN(val));	"needed min %d", buflen, Limit + AIT_LEN(val));
if (!zcpy)	if (!zcpy)
io_arrayFree(vars);	io_arrayFree(vars);
io_arrayDestroy(&vars);	io_arrayDestroy(&vars);
Line 397 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 438 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
Limit += AIT_LEN(val);	Limit += AIT_LEN(val);

if (!zcpy) {	if (!zcpy) {
val->val.buffer = malloc(AIT_LEN(val));	val->val.buffer = io_malloc(AIT_LEN(val));
if (!val->val.buffer) {	if (!val->val.buffer) {
LOGERR;	LOGERR;
io_arrayFree(vars);	io_arrayFree(vars);
io_arrayDestroy(&vars);	io_arrayDestroy(&vars);
return NULL;	return NULL;
} else	} else
memcpy(val->val.buffer, data, AIT_LEN(val));	memcpy(val->val.buffer, dat, AIT_LEN(val));
} else	} else
val->val.buffer = data;	val->val.buffer = dat;
data += AIT_LEN(val);	dat += AIT_LEN(val);
break;	break;
default:	default:
io_SetErr(EINVAL, "Error:: unsupported variable type=%d at element #%d ...\n",	io_SetErr(EINVAL, "Unsupported variable type=%d at element #%d",
AIT_TYPE(val), i);	AIT_TYPE(val), i);
if (!zcpy)	if (!zcpy)
io_arrayFree(vars);	io_arrayFree(vars);
Line 424 io_map2vars(u_char *buf, int buflen, int vnum, int zcp	Line 465 io_map2vars(u_char *buf, int buflen, int vnum, int zcp


/*	/*
* io_allocVars() Allocate ait_val_t array	* io_allocVars() - Allocate ait_val_t array
	*
* @varnum = Number of variables	* @varnum = Number of variables
* return: =NULL error or !=NULL allocated array	* return: =NULL error or !=NULL allocated array
*/	*/
Line 435 io_allocVars(int varnum)	Line 477 io_allocVars(int varnum)
register int i;	register int i;
ait_val_t *v;	ait_val_t *v;

if (!varnum \|\| !(arr = io_arrayInit(varnum)))	if (!(arr = io_arrayInit(varnum)))
return NULL;	return NULL;

for (i = 0; i < io_arraySize(arr); i++) {	for (i = 0; i < io_arraySize(arr); i++) {
v = malloc(sizeof(ait_val_t));	if (!(v = io_allocVar())) {
if (!v) {
LOGERR;
io_freeVars(&arr);	io_freeVars(&arr);
return NULL;	return NULL;
} else {	} else
memset(v, 0, sizeof(ait_val_t));
io_arraySet(arr, i, v);	io_arraySet(arr, i, v);
}
}	}

return arr;	return arr;
}	}

/*	/*
* io_clrVars() Clear ait_val_t elements from array	* io_getVars() - Get ait_val_t element from array and if not exists allocate it
	*
* @vars = Variable array	* @vars = Variable array
	* @n = index of variable into array
	* return: NULL error or !=NULL ait_val_t element
	*/
	inline ait_val_t *
	io_getVars(array_t ** __restrict vars, int n)
	{
	register int i;
	ait_val_t *v;

	if (!vars)
	return NULL;

	if (!*vars) {
	if (!(*vars = io_allocVars(n + 1)))
	return NULL;
	} else {
	if (n >= (i = io_arraySize(*vars))) {
	if (io_arrayGrow(*vars, n + 1, 0))
	return NULL;
	for (; i < io_arraySize(*vars); i++)
	if (!io_arrayGet(*vars, i)) {
	if (!(v = io_allocVar()))
	return NULL;
	else
	io_arraySet(*vars, n, v);
	}
	}
	}

	return io_array(vars, n, ait_val_t);
	}

	/*
	* io_clrVars() - Clear ait_val_t elements from array
	*
	* @vars = Variable array
* return: -1 error or size of array	* return: -1 error or size of array
*/	*/
inline int	inline int
io_clrVars(array_t * __restrict vars)	io_clrVars(array_t * __restrict vars)
{	{
register int i;	register int i;
	ait_val_t *v;

if (!vars)	if (!vars)
return -1;	return -1;

for (i = 0; i < io_arraySize(vars); i++)	for (i = 0; i < io_arraySize(vars); i++)
if (io_arrayGet(vars, i))	if ((v = io_array(vars, i, ait_val_t*)))
AIT_FREE_VAL(io_array(vars, i, ait_val_t*));	AIT_FREE_VAL(v);

return io_arraySize(vars);	return io_arraySize(vars);
}	}

/*	/*
* io_freeVars() Free ait_val_t array	* io_freeVars() - Free ait_val_t array
	*
* @vars = Variable array	* @vars = Variable array
* return: none	* return: none
*/	*/
Line 487 io_freeVars(array_t ** __restrict vars)	Line 564 io_freeVars(array_t ** __restrict vars)
io_clrVars(*vars);	io_clrVars(*vars);
io_arrayFree(*vars);	io_arrayFree(*vars);
io_arrayDestroy(vars);	io_arrayDestroy(vars);
	}

	/*
	* io_allocVar() - Allocate memory for variable
	*
	* return: NULL error or new variable, after use free variable with io_freeVar()
	*/
	inline ait_val_t *
	io_allocVar(void)
	{
	ait_val_t *v = NULL;

	v = io_malloc(sizeof(ait_val_t));
	if (!v) {
	LOGERR;
	return NULL;
	} else
	memset(v, 0, sizeof(ait_val_t));
	v->val_type = empty;

	return v;
	}

	/*
	* io_freeVar() - Free allocated memory for variable
	*
	* @val = Variable
	* return: none
	*/
	inline void
	io_freeVar(ait_val_t ** __restrict val)
	{
	if (val && *val) {
	AIT_FREE_VAL(*val);
	io_free(*val);
	*val = NULL;
	}
	}

	static int
	_cmp_arr_key_asc(const void a, const void b)
	{
	return AIT_KEY((ait_val_t) a) - AIT_KEY((ait_val_t**) b);
	}

	static int
	_cmp_arr_key_desc(const void a, const void b)
	{
	return AIT_KEY((ait_val_t) b) - AIT_KEY((ait_val_t**) a);
	}

	/*
	* io_sortVars() - Sorting array with variables
	*
	* @vars = Variable array
	* @order = Sort order. If =0 ascend or !=0 descend
	* @cmp = Compare function for sorting. If =NULL compare by key
	* return: none
	*/
	inline void
	io_sortVars(array_t * __restrict vars, int order, int (cmp)(const void, const void*))
	{
	if (!vars)
	return;

	if (cmp)
	qsort(vars->arr_data, vars->arr_num, sizeof(void*), cmp);
	else if (order)
	qsort(vars->arr_data, vars->arr_num, sizeof(void*), _cmp_arr_key_desc);
	else
	qsort(vars->arr_data, vars->arr_num, sizeof(void*), _cmp_arr_key_asc);
	}

	/*
	* io_findKeyVars() - Find variable by key from array
	*
	* @vars = Variables
	* @key = Search key
	* return: NULL error or not found, !=NULL valid element
	*/
	ait_val_t *
	io_findKeyVars(array_t * __restrict vars, u_short key)
	{
	array_t *tmp;
	ait_val_t *vv, v = NULL;
	register int i;
	const u_char *p;

	if (!vars)
	return NULL;

	if (io_arrayCopy(&tmp, vars) == -1)
	return NULL;
	else
	qsort(tmp->arr_data, tmp->arr_num, sizeof(void*), _cmp_arr_key_asc);

	/* binary search */
	for (p = (const u_char*) tmp->arr_data, i = io_arraySize(tmp); i; i >>= 1) {
	vv = (ait_val_t*) (p + (i >> 1) sizeof(void*));
	if (!(key - AIT_KEY(vv))) { / found! */
	v = *vv;
	break;
	}
	if ((key - AIT_KEY(vv)) > 0) { / move right key > current */
	p = (const u_char) vv + sizeof(void);
	i--;
	} /* else move left */
	}

	io_arrayDestroy(&tmp);
	return v;
}	}

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