Randy-Jordan/ci2
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Atoms

Browse Source
This commit is contained in:
Randy Jordan
2026-06-12 06:52:49 -05:00
parent 9fe3a86022
commit f3d85b283e
2 changed files with 192 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/platform/dsa/ci2_atom.h
+40
View File
@@ -0,0 +1,40 @@
/* - | Copyright | ------------------------------------------------------------
Copyright (c) 2026 Randy Jordan
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
* --------------------------------------------------------------------------*/
#ifndef CI2_ATOM_H
#define CI2_ATOM_H
#include <stdint.h>
extern int
atom_length(const char* str);
extern const char*
atom_new(const char* str, int len);
extern const char*
atom_string(const char* str);
extern const char*
atom_int(int64_t n);
#endif // ci2_atom.h
src/ci2_atom.c
+152
View File
@@ -0,0 +1,152 @@
/* - | Copyright | ------------------------------------------------------------
Copyright (c) 2026 Randy Jordan
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
* --------------------------------------------------------------------------*/
#include "../include/platform/dsa/ci2_atom.h"
#include "../include/platform/mem/ci2_mem.h"
#include <assert.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#define NELEMS(x) ((sizeof(x)) / (sizeof((x)[0])))
static struct atom
{
struct atom* link;
int len;
char* str;
}* buckets[2048];
static unsigned long scatter[] = {
2078917053, 143302914, 1027100827, 1953210302, 755253631, 2002600785,
1405390230, 45248011, 1099951567, 433832350, 2018585307, 438263339,
813528929, 1703199216, 618906479, 573714703, 766270699, 275680090,
1510320440, 1583583926, 1723401032, 1965443329, 1098183682, 1636505764,
980071615, 1011597961, 643279273, 1315461275, 157584038, 1069844923,
471560540, 89017443, 1213147837, 1498661368, 2042227746, 1968401469,
1353778505, 1300134328, 2013649480, 306246424, 1733966678, 1884751139,
744509763, 400011959, 1440466707, 1363416242, 973726663, 59253759,
1639096332, 336563455, 1642837685, 1215013716, 154523136, 593537720,
704035832, 1134594751, 1605135681, 1347315106, 302572379, 1762719719,
269676381, 774132919, 1851737163, 1482824219, 125310639, 1746481261,
1303742040, 1479089144, 899131941, 1169907872, 1785335569, 485614972,
907175364, 382361684, 885626931, 200158423, 1745777927, 1859353594,
259412182, 1237390611, 48433401, 1902249868, 304920680, 202956538,
348303940, 1008956512, 1337551289, 1953439621, 208787970, 1640123668,
1568675693, 478464352, 266772940, 1272929208, 1961288571, 392083579,
871926821, 1117546963, 1871172724, 1771058762, 139971187, 1509024645,
109190086, 1047146551, 1891386329, 994817018, 1247304975, 1489680608,
706686964, 1506717157, 579587572, 755120366, 1261483377, 884508252,
958076904, 1609787317, 1893464764, 148144545, 1415743291, 2102252735,
1788268214, 836935336, 433233439, 2055041154, 2109864544, 247038362,
299641085, 834307717, 1364585325, 23330161, 457882831, 1504556512,
1532354806, 567072918, 404219416, 1276257488, 1561889936, 1651524391,
618454448, 121093252, 1010757900, 1198042020, 876213618, 124757630,
2082550272, 1834290522, 1734544947, 1828531389, 1982435068, 1002804590,
1783300476, 1623219634, 1839739926, 69050267, 1530777140, 1802120822,
316088629, 1830418225, 488944891, 1680673954, 1853748387, 946827723,
1037746818, 1238619545, 1513900641, 1441966234, 367393385, 928306929,
946006977, 985847834, 1049400181, 1956764878, 36406206, 1925613800,
2081522508, 2118956479, 1612420674, 1668583807, 1800004220, 1447372094,
523904750, 1435821048, 923108080, 216161028, 1504871315, 306401572,
2018281851, 1820959944, 2136819798, 359743094, 1354150250, 1843084537,
1306570817, 244413420, 934220434, 672987810, 1686379655, 1301613820,
1601294739, 484902984, 139978006, 503211273, 294184214, 176384212,
281341425, 228223074, 147857043, 1893762099, 1896806882, 1947861263,
1193650546, 273227984, 1236198663, 2116758626, 489389012, 593586330,
275676551, 360187215, 267062626, 265012701, 719930310, 1621212876,
2108097238, 2026501127, 1865626297, 894834024, 552005290, 1404522304,
48964196, 5816381, 1889425288, 188942202, 509027654, 36125855,
365326415, 790369079, 264348929, 513183458, 536647531, 13672163,
313561074, 1730298077, 286900147, 1549759737, 1699573055, 776289160,
2143346068, 1975249606, 1136476375, 262925046, 92778659, 1856406685,
1884137923, 53392249, 1735424165, 1602280572
};
const char*
atom_string(const char* str)
{
assert(str);
return atom_new(str, strlen(str));
}
const char*
atom_int(int64_t n)
{
char str[43];
char* s = str + sizeof str;
uint64_t m;
if (n == LLONG_MIN)
m = ULLONG_MAX + 1UL;
else if (n < 0)
m = -n;
else
m = n;
do
*--s = m % 10 + '0';
while ((m /= 10) > 0);
if (n < 0)
*--s = '-';
return atom_new(s, (str + sizeof str) - s);
}
const char*
atom_new(const char* str, int len)
{
unsigned long h;
int i;
struct atom* p;
assert(str);
assert(len >= 0);
for (h = 0, i = 0; i < len; i++)
h = (h << 1) + scatter[(unsigned char)str[i]];
h &= NELEMS(buckets) - 1;
for (p = buckets[h]; p; p = p->link)
if (len == p->len) {
for (i = 0; i < len && p->str[i] == str[i];)
i++;
if (i == len)
return p->str;
}
p = CI2_MALLOC(sizeof(*p) + len + 1);
p->len = len;
p->str = (char*)(p + 1);
if (len > 0)
memcpy(p->str, str, len);
p->str[len] = '\0';
p->link = buckets[h];
buckets[h] = p;
return p->str;
}
int
atom_length(const char* str)
{
struct atom* p;
unsigned long int i;
assert(str);
for (i = 0; i < NELEMS(buckets); i++)
for (p = buckets[i]; p; p = p->link)
if (p->str == str)
return p->len;
assert(0);
return 0;
}