gtpc2mbd | C/C++ Language Support User's Guide |
This function sets the TP_name and TP_name_length
characteristics. It overrides the default value set by the
cminit function.
Format
#include <tpfmap.h>
void cmstpn(unsigned char *conversation_ID,
unsigned char *TP_name,
signed int *TP_name_length,
signed int *return_code);
- conversation_ID
- This is a pointer to an 8-byte character array that contains the
conversation ID. This conversation ID must be the ID returned by the
cminit (INITIALIZE) that started this conversation.
- TP_name
- This is a pointer to a string of as many as 64 characters. This
string specifies the remote transaction program to be contacted when the
ALLOCATE is executed.
- TP_name_length
- This is a pointer to a 4-byte field that contains the length of the new
transaction program name. The value can be from 1-bytes.
- return_code
- This is a pointer to a 4-byte field where the return code is to be
placed.
Return Codes
The following is a list of return codes that can be returned to the program
that called the cmstpn function. A complete list of the
return codes and their definitions can be found in Table 45.
- CM_OK
- CM_PRODUCT_SPECIFIC_ERROR
- CM_PROGRAM_PARAMETER_CHECK -- Either conversation_ID or
TP_name_length is invalid.
- CM_PROGRAM_STATE_CHECK -- The program is not in initialize
state.
Programming Considerations
- You can execute this function on any I-stream.
- The conversation must be in initialize state.
- The value supplied in conversation_ID must be the conversation ID
returned by the cminit function.
- This function changes the value of the TP_name and
TP_name_length characteristics.
- This function causes no state change.
- If the new TP name is invalid, it is not detected until the ALLOCATE is
attempted.
- If return_code is not CM_OK, the TP_name and
TP_name_length characteristics remain unchanged.
Examples
The following example changes the TP_name and
TP_name_length characteristics.
#include <tpfmap.h>
unsigned char convid[8];
unsigned char name[64];
signed int len;
signed int rcode;
.
.
/* set conversation_ID with value returned from initialize */
.
.
cmstpn(convid,name,&len,&rcode);
. /* normal processing path */
.
.
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