DosSetProcessorStatus
Description
DosSetProcessorStatus sets the ONLINE or OFFLINE status of a processor on an SMP system. The processor status may be queried using DosGetProcessorStatus. ONLINE status implies the processor is available for running work. OFFLINE status implies the processor is not available for running work. The processor that executes DosSetProcessorStatus must be ONLINE.
Syntax
#define INCL_DOS
#define INCL_DOSSPINLOCK
#include os2.h>
APIRET DosSetProcessorStatus
(ULONG procid, ULONG status)
Parameters
- procid (ULONG) input
- Processor ID numbered from 1 through n, where there are n processors in total.
- status (ULONG) input
- Status is defined as follows
PROC_OFFLINE 0x00000000
Processor is offline.
PROC_ONLINE 0x00000001
Processor is online.
Return Code
ulrc (APIRET) returns
DosSetProcessorStatus returns one of the following values
- 0 NO_ERROR
- 87 ERROR_INVALID_PARAMETER
Remarks
Example Code
int main(int argc, char *argv[], char *envp[]){
APIRET rc;
ULONG procid;
ULONG status;
int i;
if (argc 3) {
printf("Syntax SETPROC ON|OFF\n");
return 0;
} /* endif */
if (strcmpi(argv[argc-1],"OFF")==0) status = 0;
else if (strcmpi(argv[argc-1],"ON")==0) status = 1;
else {
printf("Syntax SETPROC ON|OFF\n");
return 0;
} /* endif */
for (i=1; i argc-1; ++i ) {
procid = atol(argv[i]);
rc = DosSetProcessorStatus(procid, status);
if (rc) printf("DosSetProcesorStatus returned %u\n",rc);
} /* endfor */
return rc;
}