ext: isolate from container/std

These are too general to belong in the container package. This targets the v0.4 release to reduce the wrapper maintenance burden.

Signed-off-by: Ophestra <cat@gensokyo.uk>

container/syscall.go

@@ -4,7 +4,7 @@ import (
 	. "syscall"
 	"unsafe"
 
-	"hakurei.app/container/std"
+	"hakurei.app/ext"
 )
 
 // Prctl manipulates various aspects of the behavior of the calling thread or process.
@@ -46,7 +46,7 @@ func Isatty(fd int) bool {
 // schedParam is equivalent to struct sched_param from include/linux/sched.h.
 type schedParam struct {
 	// sched_priority
-	priority std.Int
+	priority ext.Int
 }
 
 // schedSetscheduler sets both the scheduling policy and parameters for the
@@ -62,7 +62,7 @@ type schedParam struct {
 // this if you do not have something similar in place!
 //
 // [very subtle to use correctly]: https://www.openwall.com/lists/musl/2016/03/01/4
-func schedSetscheduler(tid int, policy std.SchedPolicy, param *schedParam) error {
+func schedSetscheduler(tid int, policy ext.SchedPolicy, param *schedParam) error {
 	if _, _, errno := Syscall(
 		SYS_SCHED_SETSCHEDULER,
 		uintptr(tid),