Guardian Procedure Calls Reference Manual (G06.25+)

Guardian Procedure Calls (W-Z)
Guardian Procedure Calls Reference Manual—522629-013
16-22
WRITEREAD[X] Procedures
Syntax for C Programmers
•
CEXTDECS (through the included file TNSINTH) defines 32-bit values as the
typedef __int32_t which for TNS and TNS/R compiles is defined as long and for
TNS/E compiles is defined as
int.
•
The function value returned by WRITEREAD[X], which indicates the condition
code, can be interpreted by
_status_lt(), _status_eq(), or _status_gt()
(defined in the file
tal.h).
Syntax for TAL Programmers
Parameters
filenum input
INT:value (Use with WRITEREAD and WRITEREADX)
is the number of an open file that identifies the file where the WRITE/READ is to
occur.
buffer input, output
INT:ref:* (Use with WRITEREAD)
STRING .EXT:ref:* (Use with WRITEREADX)
#include <cextdecs(WRITEREAD)>
_cc_status WRITEREAD ( short filenum
,short _near *buffer
,short write-count
,short read-count
,[ short _near *count-read ]
,[ __int32_t tag ] );
#include <cextdecs(WRITEREADX)>
_cc_status WRITEREADX ( short filenum
,char *buffer
,short write-count
,short read-count
,[ short *count-read ]
,[ __int32_t tag ] );
CALL WRITEREAD[X] ( filenum ! i
,buffer ! i,o
,write-count ! i
,read-count ! i
,[ count-read ] ! o
,[ tag ] ); ! i