sqlite.c

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/*
 * This file is part of the Fun programming language.
 * https://fun-lang.xyz/
 *
 * Copyright 2025 Johannes Findeisen <you@hanez.org>
 * Licensed under the terms of the Apache-2.0 license.
 * https://opensource.org/license/apache-2-0
 */

#ifdef FUN_WITH_SQLITE
#include <sqlite3.h>

typedef struct SqlHandle {
 int id;
 sqlite3 *db;
 struct SqlHandle *next;
} SqlHandle;

static SqlHandle *g_sql_handles = NULL;
static int g_sql_next_id = 1;

static SqlHandle *sql_reg_add(sqlite3 *db) {
 SqlHandle *h = (SqlHandle *)calloc(1, sizeof(SqlHandle));
 if (!h) return NULL;
 h->id = g_sql_next_id++;
 h->db = db;
 h->next = g_sql_handles;
 g_sql_handles = h;
 return h;
}

static SqlHandle *sql_reg_get(int id) {
 for (SqlHandle *p = g_sql_handles; p; p = p->next)
 if (p->id == id) return p;
 return NULL;
}

static void sql_reg_del(int id) {
 SqlHandle **pp = &g_sql_handles;
 while (*pp) {
 if ((*pp)->id == id) {
 SqlHandle *d = *pp;
 *pp = d->next;
 free(d);
 return;
 }
 pp = &(*pp)->next;
 }
}
#endif