19 #include "OstTraceDefinitions.h"

    20 #ifdef OST_TRACE_COMPILER_IN_USE

    21 #include "SqlStmtSessionTraces.h"

    22 #endif

    23 #include "SqlTraceDef.h"

    24 

    25 /**

    26  Sends a request to the SQL server to prepare 16-bit aSqlStmt statement.

    27  

    28  Usage of the IPC call arguments:

    29  Arg 0: [in/out]        data buffer for the column and parameter count.

    30  Arg 1: [out]       statement length in characters

    31  Arg 2: [out]       16-bit statement

    32  

    33  @param aDbSession A reference to RSqlDbSession instance.

    34  @param aSqlStmt 16-bit SQL statement.

    35  @param aColumnCount Output parameter. Statement column count.

    36  @param aParamCount Output parameter. Statement parameter count.

    37  

    38  @return KErrNoMemory, an out of memory condition has occured;

    39  KErrArgument, bad argument, for example - the SQL string contains more than one SQL statements.

    40  Note that the function may return some database specific errors categorised as 

    41  ESqlDbError or other system-wide error codes;

    42  KErrNone      The operation has completed successfully. 

    43  

    44  @panic SqlDb 7 In _DEBUG mode if the statement handle is 0.

    45 */

    46 TInt RSqlStatementSession::Prepare(RSqlDbSession& aDbSession, const TDesC& aSqlStmt, 

    47                                           TInt& aColumnCount, TInt& aParamCount)

    48     {

    49     iDbSession = &aDbSession;

    50     TSqlIpcData data;

    51     TPckg<TSqlIpcData> pckg(data);

    52     TUint stmtLen = aSqlStmt.Length();

    53     iHandle = iDbSession->SendReceive(ESqlSrvStmtPrepare16, TIpcArgs(&pckg, stmtLen, &aSqlStmt));

    54     __ASSERT_DEBUG(iHandle != 0, __SQLPANIC(ESqlPanicInternalError));   

    55     aColumnCount = static_cast <TInt> (data.iPrm1);

    56     aParamCount = static_cast <TInt> (data.iPrm2);

    57     SQL_TRACE_SESSION(OstTraceExt2(TRACE_INTERNALS, RSQLSTATEMENTSESSION_PREPARE16, "0x%X;RSqlStatementSession::Prepare-16;iHandle=%d", (TUint)this, iHandle));

    58     return iHandle > 0 ? KErrNone : iHandle;

    59     }

    60 

    61 /**

    62 Sends a request to the SQL server to prepare 8-bit aSqlStmt statement.

    63 

    64 Usage of the IPC call arguments:

    65 Arg 0: [in/out]     data buffer for the column and parameter count.

    66 Arg 1: [out]        statement length in characters

    67 Arg 2: [out]        8-bit statement

    68 

    69 @param aDbSession A reference to RSqlDbSession instance.

    70 @param aSqlStmt 8-bit SQL statement.

    71 @param aColumnCount Output parameter. Statement column count.

    72 @param aParamCount Output parameter. Statement parameter count.

    73 

    74 @return KErrNoMemory, an out of memory condition has occured;

    75         KErrArgument, bad argument, for example - the SQL string contains more than one SQL statements.

    76                       Note that the function may return some database specific errors categorised as 

    77                       ESqlDbError or other system-wide error codes;

    78         KErrNone      The operation has completed successfully. 

    79 

    80 @panic SqlDb 7 In _DEBUG mode if the statement handle is 0.

    81 */

    82 TInt RSqlStatementSession::Prepare(RSqlDbSession& aDbSession, const TDesC8& aSqlStmt, 

    83                                           TInt& aColumnCount, TInt& aParamCount)

    84     {

    85     iDbSession = &aDbSession;

    86     TSqlIpcData data;

    87     TPckg<TSqlIpcData> pckg(data);

    88     TUint stmtLen = aSqlStmt.Length();

    89     iHandle = iDbSession->SendReceive(ESqlSrvStmtPrepare8, TIpcArgs(&pckg, stmtLen, &aSqlStmt));

    90     __ASSERT_DEBUG(iHandle != 0, __SQLPANIC(ESqlPanicInternalError));

    91     aColumnCount = static_cast <TInt> (data.iPrm1);

    92     aParamCount = static_cast <TInt> (data.iPrm2);

    93     SQL_TRACE_SESSION(OstTraceExt2(TRACE_INTERNALS, RSQLSTATEMENTSESSION_PREPARE8, "0x%X;RSqlStatementSession::Prepare-8;iHandle=%d", (TUint)this, iHandle));

    94     return iHandle > 0 ? KErrNone : iHandle;

    95     }

   103 	SQL_TRACE_SESSION(OstTraceExt2(TRACE_INTERNALS, RSQLSTATEMENTSESSION_CLOSE, "0x%X;RSqlStatementSession::Close;iHandle=%d", (TUint)this, iHandle));