DosSetThreadAffinity: Difference between revisions
Created page with "==Description== DosSetThreadAffinity allows the calling thread to change the processor affinity mask for the current thread. ==Syntax== <PRE> APIRET DosSetThreadAffinity ..." |
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Revision as of 23:24, 21 June 2016
Description
DosSetThreadAffinity allows the calling thread to change the processor affinity mask for the current thread.
Syntax
APIRET DosSetThreadAffinity
(PMPAffinity pAffinityMask)
Parameters
- pAffinityMask (PMPAffinity) input
- Address of an MPAFFINITY structure that will become the current thread's affinity mask.
Return Code
ulrc APIRET) returns
DosSetThreadAffinity returns one of the following values
- 13 ERROR_INVALID_DATA
- 87 ERROR_INVALID_PARAMETER
Remarks
The processor affinity mask contains 1 bit per processor. A maximum of 64 processors can be designated. If affinity bits are on for non-existent processors, the error ERROR_INVALID_DATA will be returned.
Example Code
#define INCL_DOS#define INCL_32
#define INCL_DOSERRORS
#define INCL_NOPMAPI
#include os2.h>
#include stdio.h>
int main(void)
{
APIRET rc;
MPAFFINITY affinity;
rc = DosSetThreadAffinity( affinity);
printf("Set thread's affinity rc = %08.8xh\n", rc);
printf("Set thread's affinity affinity[0] = %08.8xh, affinity[1] = %08.8xh\n",
affinity.mask[0], affinity.mask[1]);
return rc;
}