version 1.3.2.2, 2011/12/14 12:22:05
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version 1.5.2.5, 2012/05/14 12:48:21
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Line 12 terms:
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Line 12 terms:
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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> |
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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. |
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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.
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Line 47 SUCH DAMAGE.
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/* |
/* |
* 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)
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Line 60 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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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; |
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assert(buf); |
assert(buf); |
assert(vars); |
assert(vars); |
Line 70 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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Line 71 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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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); |
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v = (ait_val_t*) buf; |
v = (ait_val_t*) buf; |
data = buf + Limit; | dat = buf + Limit; |
} |
} |
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/* marshaling */ |
/* marshaling */ |
Line 85 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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Line 86 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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val = io_array(vars, i, ait_val_t*); |
val = io_array(vars, i, ait_val_t*); |
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v[i].val_type = val->val_type; |
v[i].val_type = val->val_type; |
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AIT_KEY(&v[i]) = htobe16(AIT_KEY(val)); |
AIT_LEN(&v[i]) = htobe32(AIT_LEN(val)); |
AIT_LEN(&v[i]) = htobe32(AIT_LEN(val)); |
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switch (AIT_TYPE(val)) { |
switch (AIT_TYPE(val)) { |
Line 101 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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Line 103 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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case u64: |
case u64: |
v[i].val.net = htobe64(val->val.net); |
v[i].val.net = htobe64(val->val.net); |
break; |
break; |
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case data: |
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if (AIT_LEN(val) > buflen - Limit) { |
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io_SetErr(EMSGSIZE, "Short buffer buflen=%d " |
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"needed min %d", buflen, Limit + AIT_LEN(val)); |
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return -1; |
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} else |
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Limit += AIT_LEN(val); |
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memcpy(dat, val->val_data, AIT_LEN(val)); |
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/* Debug:: data offset in packet, not matter for anything! */ |
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v[i].val.net = dat - buf; |
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dat += AIT_LEN(val); |
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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); |
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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)
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Line 141 io_vars2buffer(u_char *buf, int buflen, array_t *vars)
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} |
} |
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/* |
/* |
* 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
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Line 157 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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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; |
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assert(buf); |
assert(buf); |
if (!buf || !buflen || !vnum) |
if (!buf || !buflen || !vnum) |
Line 149 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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Line 165 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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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
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Line 173 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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return NULL; |
return NULL; |
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v = (ait_val_t*) buf; |
v = (ait_val_t*) buf; |
data = buf + Limit; | dat = buf + Limit; |
} |
} |
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/* de-marshaling */ |
/* de-marshaling */ |
Line 177 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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Line 193 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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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])); |
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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])); |
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AIT_KEY(val) = be16toh(AIT_KEY(&v[i])); |
#endif |
#endif |
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switch (AIT_TYPE(val)) { |
switch (AIT_TYPE(val)) { |
Line 199 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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Line 217 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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val->val.net = be64toh(v[i].val.net); |
val->val.net = be64toh(v[i].val.net); |
#endif |
#endif |
break; |
break; |
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case data: |
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/* WARNING:: remap data type to buffer */ |
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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 219 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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Line 240 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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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
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Line 261 io_buffer2vars(u_char *buf, int buflen, int vnum, int
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/* buffer marshaling without swapping bytes to network order */ |
/* buffer marshaling without swapping bytes to network order */ |
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/* |
/* |
* 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)
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Line 274 io_vars2map(u_char *buf, int buflen, array_t *vars)
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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; |
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assert(buf); |
assert(buf); |
assert(vars); |
assert(vars); |
Line 263 io_vars2map(u_char *buf, int buflen, array_t *vars)
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Line 285 io_vars2map(u_char *buf, int buflen, array_t *vars)
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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); |
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v = (ait_val_t*) buf; |
v = (ait_val_t*) buf; |
data = buf + Limit; | dat = buf + Limit; |
} |
} |
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/* marshaling */ |
/* marshaling */ |
Line 278 io_vars2map(u_char *buf, int buflen, array_t *vars)
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Line 300 io_vars2map(u_char *buf, int buflen, array_t *vars)
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val = io_array(vars, i, ait_val_t*); |
val = io_array(vars, i, ait_val_t*); |
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v[i].val_type = val->val_type; |
v[i].val_type = val->val_type; |
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AIT_KEY(&v[i]) = AIT_KEY(val); |
AIT_LEN(&v[i]) = AIT_LEN(val); |
AIT_LEN(&v[i]) = AIT_LEN(val); |
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switch (AIT_TYPE(val)) { |
switch (AIT_TYPE(val)) { |
Line 294 io_vars2map(u_char *buf, int buflen, array_t *vars)
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Line 317 io_vars2map(u_char *buf, int buflen, array_t *vars)
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case u64: |
case u64: |
v[i].val.net = val->val.net; |
v[i].val.net = val->val.net; |
break; |
break; |
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case data: |
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if (AIT_LEN(val) > buflen - Limit) { |
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io_SetErr(EMSGSIZE, "Short buffer buflen=%d " |
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"needed min %d", buflen, Limit + AIT_LEN(val)); |
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return -1; |
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} else |
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Limit += AIT_LEN(val); |
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memcpy(dat, val->val_data, AIT_LEN(val)); |
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/* Debug:: data offset in packet, not matter for anything! */ |
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v[i].val.net = dat - buf; |
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dat += AIT_LEN(val); |
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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); |
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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)
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Line 355 io_vars2map(u_char *buf, int buflen, array_t *vars)
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} |
} |
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/* |
/* |
* 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
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Line 371 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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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; |
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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
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Line 379 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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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
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Line 387 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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return NULL; |
return NULL; |
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v = (ait_val_t*) buf; |
v = (ait_val_t*) buf; |
data = buf + Limit; | dat = buf + Limit; |
} |
} |
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/* de-marshaling */ |
/* de-marshaling */ |
Line 368 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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Line 405 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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io_arraySet(vars, i, val); |
io_arraySet(vars, i, val); |
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val->val_type = v[i].val_type; |
val->val_type = v[i].val_type; |
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AIT_KEY(val) = AIT_KEY(&v[i]); |
AIT_LEN(val) = AIT_LEN(&v[i]); |
AIT_LEN(val) = AIT_LEN(&v[i]); |
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switch (AIT_TYPE(val)) { |
switch (AIT_TYPE(val)) { |
Line 384 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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Line 422 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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case u64: |
case u64: |
val->val.net = v[i].val.net; |
val->val.net = v[i].val.net; |
break; |
break; |
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case data: |
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/* WARNING:: remap data type to buffer */ |
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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 404 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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Line 445 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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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
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Line 465 io_map2vars(u_char *buf, int buflen, int vnum, int zcp
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/* |
/* |
* 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 439 io_allocVars(int varnum)
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Line 481 io_allocVars(int varnum)
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return NULL; |
return NULL; |
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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); |
} |
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} |
} |
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return arr; |
return arr; |
} |
} |
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/* |
/* |
* io_clrVars() Clear ait_val_t elements from array | * io_clrVars() - Clear ait_val_t elements from array |
| * |
* @vars = Variable array |
* @vars = Variable array |
* return: -1 error or size of array |
* return: -1 error or size of array |
*/ |
*/ |
Line 467 io_clrVars(array_t * __restrict vars)
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Line 506 io_clrVars(array_t * __restrict vars)
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return -1; |
return -1; |
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for (i = 0; i < io_arraySize(vars); i++) |
for (i = 0; i < io_arraySize(vars); i++) |
if (io_arrayGet(vars, i)) | io_freeVar((ait_val_t**) io_arrayGet2(vars, i)); |
AIT_FREE_VAL(io_array(vars, i, ait_val_t*)); | |
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return io_arraySize(vars); |
return io_arraySize(vars); |
} |
} |
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/* |
/* |
* 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 485 io_freeVars(array_t ** __restrict vars)
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Line 524 io_freeVars(array_t ** __restrict vars)
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return; |
return; |
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io_clrVars(*vars); |
io_clrVars(*vars); |
io_arrayFree(*vars); |
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io_arrayDestroy(vars); |
io_arrayDestroy(vars); |
} |
} |
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/* |
/* |
* io_allocVar() Allocate memory for variable | * io_allocVar() - Allocate memory for variable |
| * |
* return: NULL error or new variable, after use free variable with io_freeVar() |
* return: NULL error or new variable, after use free variable with io_freeVar() |
*/ |
*/ |
inline ait_val_t * |
inline ait_val_t * |
Line 510 io_allocVar(void)
|
Line 549 io_allocVar(void)
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} |
} |
|
|
/* |
/* |
* io_freeVar() Free allocated memory for variable | * io_freeVar() - Free allocated memory for variable |
| * |
* @val = Variable |
* @val = Variable |
* return: none |
* return: none |
*/ |
*/ |
inline void |
inline void |
io_freeVar(ait_val_t * __restrict val) | io_freeVar(ait_val_t ** __restrict val) |
{ |
{ |
if (val) { | if (val && *val) { |
AIT_FREE_VAL(val); | AIT_FREE_VAL(*val); |
free(val); | free(*val); |
val = NULL; | *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); |
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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; |
} |
} |