haiku/src/bin/prio.c

41 lines
891 B
C

/* prio.c - prio command for BeOs, change priority of a given thread
* (c) 2001, 2002, François Revol (mmu_man) for Haiku
* released under the MIT licence.
*
* ChangeLog:
* 04-26-2002 v1.2
* fixed a typo on error (Priority changed failed.)
* 04-25-2002 v1.1
* Initial. Used my renice.c code to rewrite 'prio' BeOS command for Haiku.
*
* prio is a stripped-down version of renice
* seems to behave the same way as the original BeOS version. :)
*/
#include <OS.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char **argv)
{
thread_id th;
int32 prio;
status_t ret;
if (argc != 3) {
puts("Usage: prio pid newpriority");
return 1;
}
th = atoi(argv[1]);
prio = atoi(argv[2]);
// ret > 0 means successful, and is the previous priority
ret = set_thread_priority(th, prio);
if (ret >= B_OK)
return 0;
puts("Priority change failed.");
return 1;
}