import (
	"runtime/internal/sys"
)

// pageBits is a bitmap representing one bit per page in a palloc chunk.
type pageBits [pallocChunkPages / 64]uint64

// get returns the value of the i'th bit in the bitmap.
func (b *pageBits) get(i uint) uint {
	return uint((b[i/64] >> (i % 64)) & 1)
}

// block64 returns the 64-bit aligned block of bits containing the i'th bit.
func (b *pageBits) block64(i uint) uint64 {
	return b[i/64]
}

// SummarizeSlow is a slow but more obviously correct implementation
// of (*pallocBits).summarize. Used for testing.
func SummarizeSlow(b *PallocBits) PallocSum {
	var start, most, end uint

	const N = uint(len(b)) * 64
	for start < N && (*pageBits)(b).get(start) == 0 {
		start++
	}
	for end < N && (*pageBits)(b).get(N-end-1) == 0 {
		end++
	}

			continue
		}
		if !seen[ref] {
			seen[ref] = true
			links = append(links, m[1])
		}
	}
	return
}

var idRx = regexp.MustCompile(`\bid=['"]?([^\s'">]+)`)

func pageIDs(body string) (ids []string) {
	mv := idRx.FindAllStringSubmatch(body, -1)
	for _, m := range mv {
		ids = append(ids, m[1])
	}
	return
}

	Unused06           int32
	Faults             int32
	Traps              int32
	Intrs              int32
	Swtch              int32
	Softs              int32
	Syscalls           int32
	Pageins            int32
	Unused07           int32
	Unused08           int32
	Pgswapin           int32
	Pgswapout          int32
	Forks              int32
	Forks_ppwait       int32
	Forks_sharevm      int32

	Unused06           int32
	Faults             int32
	Traps              int32
	Intrs              int32
	Swtch              int32
	Softs              int32
	Syscalls           int32
	Pageins            int32
	Unused07           int32
	Unused08           int32
	Pgswapin           int32
	Pgswapout          int32
	Forks              int32
	Forks_ppwait       int32
	Forks_sharevm      int32

	Cpumiss            int64
	Faults             int64
	Traps              int64
	Intrs              int64
	Swtch              int64
	Softs              int64
	Syscalls           int64
	Pageins            int64
	Swapins            int64
	Swapouts           int64
	Pgswapin           int64
	Pgswapout          int64
	Forks              int64
	Forks_ppwait       int64
	Forks_sharevm      int64

	Unused06           int32
	Faults             int32
	Traps              int32
	Intrs              int32
	Swtch              int32
	Softs              int32
	Syscalls           int32
	Pageins            int32
	Unused07           int32
	Unused08           int32
	Pgswapin           int32
	Pgswapout          int32
	Forks              int32
	Forks_ppwait       int32
	Forks_sharevm      int32

	Unused06           int32
	Faults             int32
	Traps              int32
	Intrs              int32
	Swtch              int32
	Softs              int32
	Syscalls           int32
	Pageins            int32
	Unused07           int32
	Unused08           int32
	Pgswapin           int32
	Pgswapout          int32
	Forks              int32
	Forks_ppwait       int32
	Forks_sharevm      int32

	Unused06           int32
	Faults             int32
	Traps              int32
	Intrs              int32
	Swtch              int32
	Softs              int32
	Syscalls           int32
	Pageins            int32
	Unused07           int32
	Unused08           int32
	Pgswapin           int32
	Pgswapout          int32
	Forks              int32
	Forks_ppwait       int32
	Forks_sharevm      int32

	Unused06           int32
	Faults             int32
	Traps              int32
	Intrs              int32
	Swtch              int32
	Softs              int32
	Syscalls           int32
	Pageins            int32
	Unused07           int32
	Unused08           int32
	Pgswapin           int32
	Pgswapout          int32
	Forks              int32
	Forks_ppwait       int32
	Forks_sharevm      int32