package runtime

import "unsafe"

// tracePuts and traceU64 write an instrumented build's counters to a file
// descriptor. The alloc_trace and cover runtimes both dump "site count" lines
// that a host or a reporter reads back, so the writers live here rather than
// once per instrumented runtime.
//
// An untagged build carries them unreferenced and the linker drops them.

func tracePuts(fd int32, s string) {
	if len(s) == 0 {
		return
	}
	MoxieWrite(fd, unsafe.Pointer(&([]byte(s))[0]), int32(len(s)))
}

func traceU64(fd int32, v uint64) {
	buf := []byte{:24}
	i := int32(24)
	if v == 0 {
		i--
		buf[i] = '0'
	}
	for v > 0 {
		i--
		buf[i] = byte(v%10) + '0'
		v = v / 10
	}
	MoxieWrite(fd, unsafe.Pointer(&buf[i]), 24-i)
}