// that elides the Ready state accounting.
func sysFault(v unsafe.Pointer, n uintptr) {
	gcController.mappedReady.Add(-int64(n))
	sysFaultOS(v, n)
}

// sysReserve transitions a memory region from None to Reserved. It reserves
// address space in such a way that it would cause a fatal fault upon access
// (either via permissions or not committing the memory). Such a reservation is
// thus never backed by physical memory.
//

// asmsyscall6 calls a library function with a function descriptor
// stored in libcall_fn and store the results in libcall structure
// Up to 6 arguments can be passed to this C function
// Called by runtime.asmcgocall
// It reserves a stack of 288 bytes for the C function. It must
// follow AIX convention, thus the first local variable must
// be stored at the offset 112, after the linker area (48 bytes)
// and the argument area (64).

func (r *PortAllocator) Used() int {
	return r.portRange.Size - r.alloc.Free()
}

// Allocate attempts to reserve the provided port. ErrNotInRange or
// ErrAllocated will be returned if the port is not valid for this range
// or has already been reserved.  ErrFull will be returned if there
// are no ports left.
func (r *PortAllocator) Allocate(port int) error {
	ok, offset := r.contains(port)

// Code generated by the command above; DO NOT EDIT.

package syscall

// Go names for Windows errors.
const (
	ENOENT  Errno = ERROR_FILE_NOT_FOUND
	ENOTDIR Errno = ERROR_PATH_NOT_FOUND
)

// Windows reserves errors >= 1<<29 for application use.
const APPLICATION_ERROR = 1 << 29

// Invented values to support what package os and others expects.
const (
	E2BIG Errno = APPLICATION_ERROR + iota
	EACCES
	EADDRINUSE

		// NOTE: this means Istio reserves the word "none" in this field with a special meaning
		//   a waypoint named "none" cannot be used and will be ignored
		//   also reserve anything with suffix "/none" to prevent use of "namespace/none" as a work around
		// ~ is used in other portions of the API, reserve it with special meaning although it's unlikely to be documented

	// memory over-use.
	overuse := (float64(heapBacked) - float64(stats.HeapAlloc)) / float64(stats.HeapAlloc)
	// Check against our overuse threshold, which is what the scavenger always reserves
	// to encourage allocation of memory that doesn't need to be faulted in.
	//
	// Add additional slack in case the page size is large and the scavenger

	return dryRunRange{r}
}

// For clearer code.
const dryRunTrue = true
const dryRunFalse = false

// Allocate attempts to reserve the provided IP. ErrNotInRange or
// ErrAllocated will be returned if the IP is not valid for this range
// or has already been reserved.  ErrFull will be returned if there
// are no addresses left.
func (r *Range) Allocate(ip net.IP) error {
	return r.allocate(ip, dryRunFalse)
}

Contributions) under the new version.

Except as expressly stated in Sections 2(a) and 2(b) above, Recipient
receives no rights or licenses to the intellectual property of any
Contributor under this Agreement, whether expressly, by implication,
estoppel or otherwise. All rights in the Program not expressly granted
under this Agreement are reserved. Nothing in this Agreement is intended
to be enforceable by any entity that is not a Contributor or Recipient.

}

// userArenaChunkReserveBytes returns the amount of additional bytes to reserve for
// heap metadata.
func userArenaChunkReserveBytes() uintptr {
	// In the allocation headers experiment, we reserve the end of the chunk for
	// a pointer/scalar bitmap. We also reserve space for a dummy _type that
	// refers to the bitmap. The PtrBytes field of the dummy _type indicates how

under the new version. Except as expressly stated in Sections 2(a) and 2(b)
above, Recipient receives no rights or licenses to the intellectual property
of any Contributor under this Agreement, whether expressly, by implication,
estoppel or otherwise. All rights in the Program not expressly granted under
this Agreement are reserved.

This Agreement is governed by the laws of the State of New York and the intellectual