static void
send_dr( GCD_CCB *ccb, GCD_RCB *rcb, STATUS error )
{
DAM_TL_HDR hdr;
if ( ! ccb->tl.gcc_service ) /* Already shutdown? */
{
/*
** Consume RCB if provided.
*/
if ( rcb ) gcd_del_rcb( rcb );
return;
}
if ( GCD_global.gcd_trace_level >= 3 )
TRdisplay( "%4d GCD DMTL aborting connection: 0x%x\n",
ccb->id, error );
/*
** If RCB provided, initialize since it may
** have contained data. Allocate otherwise.
** Allow room for error parameter.
*/
if ( rcb )
gcd_init_rcb( rcb );
else if ( ! (rcb = gcd_new_rcb( ccb, (CV_N_I1_SZ * 2) + CV_N_I4_SZ )) )
return;
/*
** Return error code to client when provided.
*/
if ( error != OK && error != FAIL )
{
DAM_TL_PARAM param;
STATUS status;
param.param_id = DAM_TL_DP_ERR;
CV2N_I1_MACRO( ¶m.param_id,
&rcb->buf_ptr[ rcb->buf_len ], &status );
rcb->buf_len += CV_N_I1_SZ;
param.pl1 = CV_N_I4_SZ;
CV2N_I1_MACRO( ¶m.pl1,
&rcb->buf_ptr[ rcb->buf_len ], &status );
rcb->buf_len += CV_N_I1_SZ;
CV2N_I4_MACRO( &error,
&rcb->buf_ptr[ rcb->buf_len ], &status );
rcb->buf_len += CV_N_I4_SZ;
}
/*
** Add TL packet header and send packet.
*/
hdr.tl_id = ccb->tl.packet_id;
hdr.msg_id = DAM_TL_DR;
build_hdr( rcb, &hdr );
(*ccb->tl.gcc_service->send)( rcb );
return;
}
void
gcd_msg_cursor( GCD_CCB *ccb )
{
DAM_ML_CUR cursor;
STMT_ID stmt_id;
GCD_SCB *scb;
GCD_PCB *pcb;
STATUS status;
u_i2 pos_anchor = MSG_POS_CURRENT; /* Default to NEXT */
i4 pos_offset = 1;
u_i4 pre_fetch = 1;
bool incomplete = FALSE;
bool got_id = FALSE;
if ( ! gcd_get_i2( ccb, (u_i1 *)&cursor.cursor_op ) )
{
if ( GCD_global.gcd_trace_level >= 1 )
TRdisplay( "%4d GCD no cursor op specified\n", ccb->id );
gcd_sess_abort( ccb, E_GC480A_PROTOCOL_ERROR );
return;
}
if ( GCD_global.gcd_trace_level >= 3 )
TRdisplay( "%4d GCD Cursor operation: %s\n",
ccb->id, gcu_lookup( curMap, cursor.cursor_op ) );
if ( ! (pcb = gcd_new_pcb( ccb )) ||
! (pcb->rcb = gcd_new_rcb( ccb, -1 )) )
{
if ( pcb ) gcd_del_pcb( pcb );
gcd_sess_abort( ccb, E_GC4808_NO_MEMORY );
return;
}
while( ccb->msg.msg_len )
{
DAM_ML_PM cp;
u_i1 u_i1_val;
u_i2 u_i2_val;
u_i4 u_i4_val;
incomplete = TRUE;
if ( ! gcd_get_i2( ccb, (u_i1 *)&cp.param_id ) ) break;
if ( ! gcd_get_i2( ccb, (u_i1 *)&cp.val_len ) ) break;
switch( cp.param_id )
{
case MSG_CUR_STMT_ID :
if ( cp.val_len != (CV_N_I4_SZ * 2) ||
! gcd_get_i4( ccb, (u_i1 *)&stmt_id.id_high ) ||
! gcd_get_i4( ccb, (u_i1 *)&stmt_id.id_low ) )
break;
incomplete = FALSE;
got_id = TRUE;
break;
case MSG_CUR_PRE_FETCH :
switch( cp.val_len )
{
case 1 :
if ( gcd_get_i1( ccb, (u_i1 *)&u_i1_val ) )
{
pre_fetch = max( pre_fetch, u_i1_val );
incomplete = FALSE;
}
break;
case 2 :
if ( gcd_get_i2( ccb, (u_i1 *)&u_i2_val ) )
{
pre_fetch = max( pre_fetch, u_i2_val );
incomplete = FALSE;
}
break;
case 4 :
if ( gcd_get_i4( ccb, (u_i1 *)&u_i4_val ) )
{
pre_fetch = max( pre_fetch, u_i4_val );
incomplete = FALSE;
}
break;
}
break;
case MSG_CUR_POS_ANCHOR :
switch( cp.val_len )
{
case 1 :
if ( gcd_get_i1( ccb, (u_i1 *)&u_i1_val ) )
{
pos_anchor = (u_i2)u_i1_val;
incomplete = FALSE;
}
break;
case 2 :
if ( gcd_get_i2( ccb, (u_i1 *)&u_i2_val ) )
{
pos_anchor = (u_i2)u_i2_val;
incomplete = FALSE;
}
break;
case 4 :
if ( gcd_get_i4( ccb, (u_i1 *)&u_i4_val ) )
{
pos_anchor = (u_i2)u_i2_val;
incomplete = FALSE;
}
break;
}
break;
case MSG_CUR_POS_OFFSET :
if ( cp.val_len != CV_N_I4_SZ ||
! gcd_get_i4( ccb, (u_i1 *)&pos_offset ) )
break;
incomplete = FALSE;
break;
default :
if ( GCD_global.gcd_trace_level >= 3 )
TRdisplay( "%4d GCD unkown parameter ID %d\n",
ccb->id, cp.param_id );
break;
}
if ( incomplete ) break;
}
if ( incomplete )
{
if ( GCD_global.gcd_trace_level >= 1 )
TRdisplay( "%4d GCD unable to read all cursor parameters %d\n",
ccb->id );
status = E_GC480A_PROTOCOL_ERROR;
}
else if ( ! got_id )
{
if ( GCD_global.gcd_trace_level >= 1 )
TRdisplay( "%4d GCD no cursor ID for cursor message\n",
ccb->id );
status = E_GC480A_PROTOCOL_ERROR;
}
else
status = OK;
if ( status != OK )
{
gcd_del_pcb( pcb );
gcd_sess_abort( ccb, status );
return;
}
if ( ! (scb = gcd_find_stmt( ccb, &stmt_id )) )
{
if ( GCD_global.gcd_trace_level >= 1 )
TRdisplay( "%4d GCD no active statement for cursor ID\n",
ccb->id );
gcd_sess_error( ccb, &pcb->rcb, E_GC4811_NO_STMT );
gcd_send_done( ccb, &pcb->rcb, pcb );
gcd_del_pcb( pcb );
gcd_msg_pause( ccb, TRUE );
return;
}
switch( cursor.cursor_op )
{
case MSG_CUR_CLOSE :
ccb->sequence = CLOSE_CURSOR;
pcb->scb = scb;
crsr_close_sm( (PTR)pcb );
break;
case MSG_CUR_FETCH :
ccb->sequence = FETCH_INIT;
ccb->api.stmt = scb->handle; /* Activate statement */
pcb->scb = scb;
pcb->data.data.reference = pos_anchor;
pcb->data.data.offset = pos_offset;
pcb->data.data.max_row = pre_fetch;
crsr_fetch_sm( (PTR)pcb );
break;
default :
if ( GCD_global.gcd_trace_level >= 1 )
TRdisplay( "%4d GCD invalid cursor op: %d\n",
ccb->id, cursor.cursor_op );
gcd_del_pcb( pcb );
gcd_sess_abort( ccb, E_GC480A_PROTOCOL_ERROR );
}
return;
}
