gtpc2m13 | C/C++ Language Support User's Guide |
This macro creates an independent ECB for deferred processing.
A variable number of bytes may be passed to the created ECB's work area starting at EBW000. The TPF system moves the parameters into an interim block of available storage and adds this block to the deferred processing CPU loop list. Operational program zero (OPZERO) initializes an ECB with the parameters in the work area, releases the interim block, and activates the specified program.
Format
#include <tpfapi.h> void credc(int length, const void *parm, void (*segname)()); void __CREDC(int length, const void *parm, const char *segname);
Migration to ISO-C consideration |
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The TARGET(TPF) credc function can handle segment names that are #pragma mapped. The ISO-C credc function only handles #pragma mapped names if the first 4 characters are the same as the program name. |
TARGET(TPF) restriction |
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Only calls to certain TPF API functions permit the use of function pointers. Pointers to functions are not supported in TARGET(TPF); their use normally results in a compiler error. |
Normal Return
Void.
Error Return
Not applicable.
Programming Considerations
Examples
The following example creates a deferred entry for program COT0, passing string VPH as input data to the program.
#include <tpfapi.h> void COT0(); char *parmstring = "VPH";
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credc(strlen(parmstring),parmstring,COT0);
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