CBL_THREAD_IDDATA_ALLOC using by reference iddata
by value iddatasize
| Using call prototype (see Key) | Picture | |
|---|---|---|
| iddata | cblt_pointer | pic x(n). |
| iddatasize | cblt-os-size | pic x(4) comp-5
or pic x(8) comp-5 (64-bit native programs only) |
| iddata | Id-data area for the current thread |
| iddatasize | Size of the id-data area. If it is zero, the thread will have no id-data area. |
| return-code | A value indicating success or otherwise. See RETURN-CODE Values For Thread-control Routines. |
Comments:
This call allocates an id-data area for the current thread, and registers it so that a further call to CBL_THREAD_IDDATA_GET with this thread's handle will return the pointer to this data area. A call to CBL_THREAD_LIST_START or CBL_THREAD_LIST_NEXT can also be used to retrieve the pointer to this data area.
If there was already an id-data area for this thread, the old one is freed and replaced by the new one. This will not happen if the call fails; typically this occurs if there is not enough memory to allocate the new id-data area.
If the iddata parameter is passed as 'by value 0' then any area allocated is initialized to low-values. Otherwise iddata provides the initialization data for the memory area allocated.