Add missing POSIX features
- Add file
sys/param.h
. - Add error code
ENOTSUP
. - Add scheduler policy constants
SCHED_OTHER
,SCHED_FIFO
, andSCHED_RR
. - Make
PTHREAD_INHERIT_SCHED
andPTHREAD_EXPLICIT_SCHED
expand to different values. - Make
PTHREAD_SCOPE_PROCESS
andPTHREAD_SCOPE_SYSTEM
expand to different values. - Add definitions for signals
struct sigaction
sigfillset
sigaction
-
SIGUSR1
,SIGUSR2
,SIGALARM