diff options
Diffstat (limited to 'src/types')
| -rw-r--r-- | src/types/map.c | 106 | ||||
| -rw-r--r-- | src/types/map.h | 3 |
2 files changed, 73 insertions, 36 deletions
diff --git a/src/types/map.c b/src/types/map.c index b5afc1c..cd46537 100644 --- a/src/types/map.c +++ b/src/types/map.c @@ -10,52 +10,74 @@ uint64_t hash(char* c, size_t len){ return fnv_1((uint8_t*)c, len, v_a); } -map_t* map_init(){ - map_t* awa = malloc(sizeof * awa); - awa->M = malloc(sizeof * awa->M * 4); +void map_dump(map_t* M){ + printf("---\n%i %i\n- **\n",M->mod, M->len); + for(int i = 0; i != M->mod; i++){ + if(M->M[i].used){ + printf("%i | %s : %p\n",i,M->M[i].key->c, M->M[i].value); + } + } +} + +map_t* map_initl(size_t len){ + map_t* awa = calloc(sizeof * awa, 1); + awa->M = calloc(sizeof * awa->M, len); + //for(int i = 0; i != len; i++) awa->M[i].used = 0; awa->len = 0; - awa->mod = 4; + awa->mod = len; return awa; } -void map_regraph(map_t* M){ - map_t* remade = map_init(); - for(int i = 0; i != M->len; i++){ +map_t* map_init(){ + return map_initl(4); +} + +void map_expand(map_t** _M){ + map_t* M = *_M; + map_t* remade = map_initl(M->mod * 4); + for(int i = 0; i != M->mod; i++){ //what happens if the map_set calls map_regraph??? idk - map_set(remade, M->M[i].key->c, M->M[i].value); + if(M->M[i].used) + map_set(&remade, M->M[i].key->c, M->M[i].value); } - M = remade; + + *_M = remade; } -void map_set(map_t* M, char* key, void* value){ +void map_set(map_t** _M, char* key, void* value){ + map_t* M = *_M; uint64_t h = hash(key, strlen(key)); - if(M->len >= M->mod){ + + if(M->len + 1 >= M->mod){ expand: - M->mod *= 4; - M->M = realloc(M->M, sizeof * M->M * M->mod); - //regraph it - map_regraph(M); + map_expand(&M); } uint64_t ind = h % M->mod; - - for(int count = 0; M->M[ind].key != NULL && M->M[ind].hash != h && strcmp(M->M[ind].key->c, key) != 0; count++){ + uint64_t oind = ind; + + //iterates until there is a free space + for(int count = 0; M->M[ind].used && M->M[ind].hash != h && strcmp(M->M[ind].key->c, key) != 0; count++){ ind++; if(ind >= M->mod) ind = 0; - if(count > 5) goto expand; + if(ind == oind || count > 10) goto expand; } M->M[ind].hash = h; M->M[ind].key = str_init(key); M->M[ind].value = value; + M->M[ind].used = 1; + M->len++; + + *_M = M; } int map_geti(map_t* M, char* key){ uint64_t h = hash(key, strlen(key)); uint64_t ind = h % M->mod; - //melem_t sel = M->M[]; for(uint64_t initial = ind; ind != initial - 1;){ if(M->M[ind].key == NULL) return -1; + //printf("%s\n",M->M[ind].key->c); if(M->M[ind].hash == h && strcmp(M->M[ind].key->c, key)==0) return ind; ind++; if(ind >= M->mod) ind = 0; @@ -65,35 +87,49 @@ int map_geti(map_t* M, char* key){ void* map_get(map_t* M, char* key){ int r = map_geti(M, key); - printf("%i\n",r); + //printf("%i\n",r); return r == -1? NULL : M->M[r].value; } -void map_remove(map_t* p, char* key, enum free_type free); -void map_clear(map_t*, enum free_type); -void map_lclear(map_t*); +void map_remove(map_t* p, char* key, enum free_type free){ + int ind = map_geti(p, key); + if(ind == -1) return; + p->M[ind].used = 0; + p->M[ind].hash = 0; + str_free(p->M[ind].key); + free_method(p->M[ind].value, free); +} -void map_dump(map_t* M){ +void map_lclear(map_t* M){ + free(M->M); + free(M); +} + +void map_clear(map_t* M, enum free_type free){ for(int i = 0; i != M->mod; i++){ - if(M->M[i].key != NULL){ - printf("%i | %s : %p\n",i,M->M[i].key->c, M->M[i].value); - } + if(M->M[i].used){ + str_free(M->M[i].key); + free_method(M->M[i].value, free); + } } + map_lclear(M); } + int main(){ int i = 5; int b = 24; int c = 9; map_t* m = map_init(); - for(int i = 65; i != 91; i++){ - //printf("%c\n",i); - int* ww = malloc(sizeof * ww * 55); - ww[0] = i; - map_set(m, ((char[]){i, 0}), ww); - } - map_dump(m); - printf("%i\n",*(int*)map_get(m, "B")); + map_set(&m, "wowa", &b); + printf("%i\n",*(int*)map_get(m, "wowa")); + map_set(&m, "aw", &i); + map_set(&m, "awc", &i); + map_set(&m, "awa", &i); + map_set(&m, "aww", &i); + printf("%i\n",*(int*)map_get(m, "wowa")); + + map_clear(m, NONE); return 0; }
\ No newline at end of file diff --git a/src/types/map.h b/src/types/map.h index cb8fed2..efa6d65 100644 --- a/src/types/map.h +++ b/src/types/map.h @@ -10,6 +10,7 @@ typedef struct { void* value; str* key; uint64_t hash; + int used; } melem_t; typedef struct { @@ -19,7 +20,7 @@ typedef struct { } map_t; map_t* map_init(); -void map_set(map_t*, char*, void*); +void map_set(map_t**, char*, void*); void* map_get(map_t* , char*); int map_geti(map_t* , char*); void map_remove(map_t* p, char* key, enum free_type free); |
