37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#include <erl_driver.h>
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#include <ei.h>
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#include <stdio.h>
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#include <string.h>
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#include <sqlite3.h>
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#include <erl_interface.h>
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// Path to file where data will be stored.
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// It will be created if it doesn't exist
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#define DB_PATH "./store.db"
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// Binary commands between Erlang VM and Driver
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#define CMD_SQL_EXEC 2
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// #define CMD_DEL 3
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// Number of bytes for each key
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// (160 bits for SHA1 hash)
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#define KEY_SIZE 20
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// Define struct to hold state across calls
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typedef struct _bdb_drv_t {
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ErlDrvPort port;
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struct sqlite3 *db;
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} sqlite3_drv_t;
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static ErlDrvData start(ErlDrvPort port, char* cmd);
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static void stop(ErlDrvData handle);
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static int control(ErlDrvData drv_data, unsigned int command, char *buf,
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int len, char **rbuf, int rlen);
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static void ready_async(ErlDrvData drv_data, ErlDrvThreadData thread_data);
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static int sql_exec(sqlite3_drv_t *drv, char *buf, int len);
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// static void get(bdb_drv_t *bdb_drv, ErlIOVec *ev);
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// static void del(bdb_drv_t *bdb_drv, ErlIOVec *ev);
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static int unknown(sqlite3_drv_t *bdb_drv, char *buf, int len);
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