luboslenco
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
#include "names.h"
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#include "libs/stb_ds.h"
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#include "errors.h"
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#include <assert.h>
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static char *names = NULL;
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static size_t names_size = 1024 * 1024;
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////
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// static name_id names_index = 1;
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name_id names_index = 1;
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////
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static struct {
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char *key;
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name_id value;
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} *hash = NULL;
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void names_init(void) {
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char *new_names = realloc(names, names_size);
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debug_context context = {0};
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check(new_names != NULL, context, "Could not allocate names");
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names = new_names;
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names[0] = 0; // make NO_NAME a proper string
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sh_new_arena(hash); // TODO: Get rid of this by using indices internally in the hash-map so it can survive grow_if_needed
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}
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static void grow_if_needed(size_t size) {
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while (size >= names_size) {
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names_size *= 2;
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char *new_names = realloc(names, names_size);
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debug_context context = {0};
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check(new_names != NULL, context, "Could not allocate names");
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names = new_names;
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}
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}
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name_id add_name(char *name) {
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ptrdiff_t old_id_index = shgeti(hash, name);
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if (old_id_index >= 0) {
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return hash[old_id_index].value;
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}
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size_t length = strlen(name);
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grow_if_needed(names_index + length + 1);
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name_id id = names_index;
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memcpy(&names[id], name, length);
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names[id + length] = 0;
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names_index += length + 1;
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shput(hash, &names[id], id);
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return id;
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}
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char *get_name(name_id id) {
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debug_context context = {0};
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check(id < names_index, context, "Encountered a weird name id");
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return &names[id];
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}
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