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Untested revised implementation of the SQLite module.

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This commit is contained in:
Sandu Liviu Catalin
2016-06-15 23:49:25 +03:00
parent 166760fd46
commit 8087d0482f
17 changed files with 2235 additions and 2300 deletions
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70
modules/sqlite/Handle/Statement.cpp
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@ -1,45 +1,41 @@
// ------------------------------------------------------------------------------------------------
#include "Handle/Statement.hpp"
#include "Handle/Connection.hpp"
// ------------------------------------------------------------------------------------------------
namespace SqMod {
// ------------------------------------------------------------------------------------------------
void StmtHnd::Validate() const
StmtHnd::StmtHnd(const ConnRef & conn)
: mPtr(nullptr)
, mStatus(SQLITE_OK)
, mConn(conn)
, mQuery()
, mColumns(0)
, mParameters(0)
, mIndexes()
, mGood(false)
, mDone(false)
{
// Is the handle valid?
if ((m_Hnd == nullptr) || (m_Hnd->mPtr == nullptr))
{
STHROWF("Invalid SQLite statement reference");
}
/* ... */
}
// ------------------------------------------------------------------------------------------------
StmtHnd::Handle::~Handle()
StmtHnd::~StmtHnd()
{
// Is there anything to finalize?
if (!mPtr)
{
return; // Nothing to finalize
}
// Are we dealing with a memory leak? Technically shouldn't reach this situation!
else if (mRef != 0)
{
// Should we deal with undefined behavior instead? How bad is one statement left alive?
_SqMod->LogErr("SQLite statement is still referenced (%s)", mQuery.c_str());
}
else
if (mPtr != nullptr)
{
// Attempt to finalize the statement
if ((sqlite3_finalize(mPtr)) != SQLITE_OK)
{
_SqMod->LogErr("Unable to finalize SQLite statement [%s]", mConn.ErrMsg());
_SqMod->LogErr("Unable to finalize SQLite statement [%s]", mConn->ErrMsg());
}
}
}
// ------------------------------------------------------------------------------------------------
void StmtHnd::Handle::Create(CSStr query)
void StmtHnd::Create(CSStr query)
{
// Make sure a previous statement doesn't exist
if (mPtr)
@ -59,7 +55,7 @@ void StmtHnd::Handle::Create(CSStr query)
STHROWF("Unable to prepare statement. Invalid query string");
}
// Attempt to prepare a statement with the specified query string
else if ((mStatus = sqlite3_prepare_v2(mConn, mQuery.c_str(), (Int32)mQuery.size(),
else if ((mStatus = sqlite3_prepare_v2(mConn->mPtr, mQuery.c_str(), (Int32)mQuery.size(),
&mPtr, nullptr)) != SQLITE_OK)
{
// Clear the query string since it failed
@ -67,17 +63,19 @@ void StmtHnd::Handle::Create(CSStr query)
// Explicitly make sure the handle is null
mPtr = nullptr;
// Now it's safe to throw the error
STHROWF("Unable to prepare statement [%s]", mConn.ErrMsg());
STHROWF("Unable to prepare statement [%s]", mConn->ErrMsg());
}
else
{
// Obtain the number of available columns
mColumns = sqlite3_column_count(mPtr);
// Obtain the number of available parameters
mParameters = sqlite3_bind_parameter_count(mPtr);
}
}
// ------------------------------------------------------------------------------------------------
Int32 StmtHnd::Handle::GetColumnIndex(CSStr name)
Int32 StmtHnd::GetColumnIndex(CSStr name)
{
// Validate the handle
if (!mPtr)
@ -114,4 +112,28 @@ Int32 StmtHnd::Handle::GetColumnIndex(CSStr name)
return -1;
}
} // Namespace:: SqMod
// ------------------------------------------------------------------------------------------------
CCStr StmtHnd::ErrStr() const
{
return mConn ? sqlite3_errstr(sqlite3_errcode(mConn->mPtr)) : _SC("");
}
// ------------------------------------------------------------------------------------------------
CCStr StmtHnd::ErrMsg() const
{
return mConn ? sqlite3_errmsg(mConn->mPtr) : _SC("");
}
// ------------------------------------------------------------------------------------------------
Int32 StmtHnd::ErrNo() const
{
return mConn ? sqlite3_errcode(mConn->mPtr) : SQLITE_NOMEM;
}
// ------------------------------------------------------------------------------------------------
Int32 StmtHnd::ExErrNo() const
{
return mConn ? sqlite3_extended_errcode(mConn->mPtr) : SQLITE_NOMEM;
}
} // Namespace:: SqMod