metaforce/hecl/lib/database/CSQLiteCooked.hpp

83 lines
2.4 KiB
C++

#ifndef CSQLITECOOKED_HPP
#define CSQLITECOOKED_HPP
#include <sqlite3.h>
#include <stdexcept>
#include <functional>
#include "HECLDatabase.hpp"
#include "sqlite_hecl_vfs.h"
namespace HECLDatabase
{
static const char* skCOOKEDDBINIT =
"PRAGMA foreign_keys = ON;\n"
"CREATE TABLE IF NOT EXISTS cgrps("
"grpid INTEGER PRIMARY KEY," /* Unique group identifier (from main DB) */
"offset UNSIGNED INTEGER," /* Group-blob offset within package */
"compLen UNSIGNED INTEGER," /* Compressed blob-length */
"decompLen UNSIGNED INTEGER);\n" /* Decompressed blob-length */
"CREATE TABLE IF NOT EXISTS cobjs("
"objid INTEGER PRIMARY KEY," /* Unique object identifier (from main DB) */
"type4cc UNSIGNED INTEGER," /* Type FourCC as claimed by first project class in dataspec */
"loosegrp REFERENCES cgrps(grpid) ON DELETE SET NULL DEFAULT NULL);\n" /* single-object group of ungrouped object */
"CREATE TABLE IF NOT EXISTS cgrplinks("
"grpid REFERENCES cgrps(grpid) ON DELETE CASCADE," /* Group ref */
"objid REFERENCES cobjs(objid) ON DELETE CASCADE," /* Object ref */
"offset UNSIGNED INTEGER," /* Offset within decompressed group-blob */
"decompLen UNSIGNED INTEGER," /* Decompressed object length */
"UNIQUE (grpid, objid) ON CONFLICT IGNORE);\n"
"CREATE INDEX IF NOT EXISTS grpidx ON cgrplinks(grpid);\n";
#define PREPSTMT(stmtSrc, outVar)\
if (sqlite3_prepare_v2(m_db, stmtSrc, 0, &outVar, NULL) != SQLITE_OK)\
{\
throw std::runtime_error(sqlite3_errmsg(m_db));\
sqlite3_close(m_db);\
return;\
}
class CSQLiteCooked
{
sqlite3* m_db;
public:
CSQLiteCooked(const char* path, bool readonly)
{
/* Open database connection */
int errCode = 0;
if ((errCode = sqlite3_open_v2(path, &m_db, SQLITE_OPEN_READONLY,
"hecl_memlba")) != SQLITE_OK)
{
throw std::runtime_error(sqlite3_errstr(errCode));
sqlite3_close(m_db);
return;
}
/* Execute bootstrap statements */
char* errMsg = NULL;
sqlite3_exec(m_db, skCOOKEDDBINIT, NULL, NULL, &errMsg);
if (errMsg)
{
throw std::runtime_error(errMsg);
sqlite3_free(errMsg);
sqlite3_close(m_db);
return;
}
/* Precompile statements */
}
~CSQLiteCooked()
{
sqlite3_close(m_db);
}
};
}
#endif // CSQLITE_HPP