Begin prototyping persistent storage API

This commit is contained in:
Jordan Bancino 2022-10-24 12:44:29 -04:00
parent 95930f4218
commit e009536065
2 changed files with 156 additions and 0 deletions

104
src/Db.c Normal file
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/*
* Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
*
* 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 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 <Db.h>
#include <Memory.h>
#include <pthread.h>
struct Db
{
const char *dir;
size_t cacheSize;
pthread_mutex_t lock;
};
struct DbRef
{
pthread_mutex_t lock;
};
Db *
DbOpen(const char *dir, size_t cache)
{
Db *db;
if (!dir)
{
return NULL;
}
db = Malloc(sizeof(Db));
if (!db)
{
return NULL;
}
db->dir = dir;
db->cacheSize = cache;
pthread_mutex_init(&db->lock, NULL);
if (db->cacheSize)
{
}
return db;
}
void
DbClose(Db * db)
{
if (!db)
{
return;
}
Free(db);
}
DbRef *
DbCreate(Db * db, char *prefix, char *key)
{
return NULL;
}
DbRef *
DbLock(Db * db, char *prefix, char *key)
{
return NULL;
}
void
DbUnlock(Db * db, DbRef * ref)
{
return;
}
HashMap *
DbJson(DbRef * ref)
{
return NULL;
}

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src/include/Db.h Normal file
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/*
* Copyright (C) 2022 Jordan Bancino <@jordan:bancino.net>
*
* 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 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 TELODENDRIA_DB_H
#define TELODENDRIA_DB_H
#include <stddef.h>
#include <HashMap.h>
typedef struct Db Db;
typedef struct DbRef DbRef;
extern Db *
DbOpen(const char *, size_t);
extern void
DbClose(Db *);
extern DbRef *
DbCreate(Db *, char *, char *);
extern DbRef *
DbLock(Db *, char *, char *);
extern void
DbUnlock(Db *, DbRef *);
extern HashMap *
DbJson(DbRef *);
#endif