valueuint32levels []*Level// 索引节点,index=0是基础链表}typeLevelstruct{ next *Node }typeSkipListstruct{ header *Node// 表头节点lengthuint32// 原始链表的长度,表头节点不计入heightuint32// 最高的节点的层数}funcNewSkipList()*SkipList {return&SkipList{ header: NewNode(MaxLevel,0), length:0, ...
~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr | ~float32 | ~float64 | ~string } 也就是说只有基于所有除了map,chan,slice以及复数之外的基本类型的变量才能使用这两个函数。或者换句话说,只有可以使用<、>、<=、>=、==和!=进行比较的类型才可以使用min和max。 有了min和max,可以...
AI代码解释 // runtime/signal_unix.gofuncsetThreadCPUProfiler(hz int32){mp:=getg().m// 获取当前协程绑定的的线程M...spec:=new(itimerspec)spec.it_value.setNsec(1+int64(fastrandn(uint32(1e9/hz)))spec.it_interval.setNsec(1e9/int64(hz))// 设置间隔为 100000000/100 纳秒 = 10msvartim...
type Mutex struct{state int32 sema uint32} 状态 互斥锁的状态是用int32来表示的,但是锁的状态并不是互斥的,它的最低三位分别表示mutexLocked、mutexWoken和mutexStarving,剩下的位置都用来表示当前有多少个 Goroutine 等待互斥锁被释放:  互斥锁在被创建出来时,所有的状态位的默认值都是0,当互斥锁被锁定...
{ // This always copies a full value of type typ so it's safe // to pass typ along as an optimization. See the comment on // bulkBarrierPreWrite. bulkBarrierPreWrite(uintptr(dst), uintptr(src), typ.PtrBytes, typ) } // There's a race here: if some other goroutine can write ...
funcNewNode(level, valueuint32)*Node{node :=new(Node)node.value = valuenode.levels =make([]*Level, level) fori :=0; i <len(node.levels); i++ {node.levels[i] =new(Level)}returnnode} 这里的p就是上面提到的节点晋升概率,MaxLe...
maxPackedValue = 1 << logMaxPackedValue ) type pallocSum uint64 // 基于 start、max、end 组装成一个基数树节点 pallocSum func packPallocSum(start, max, end uint) pallocSum { // ... return pallocSum((uint64(start) & (maxPackedValue - 1)) | ...
s capacity.// num = number of elements being added// et = element type/// return values:/// newPtr = pointer to the new backing store// newLen = same value as the argument// newCap = capacity of the new backing store/// Requires that uint(newLen) > uint(oldCap).//...
func newproc1(fn *funcval, argp unsafe.Pointer, narg int32, callergp *g, callerpc uintptr) *g { _g_ := getg() // 获取当前g if fn == nil { _g_.m.throwing = -1 // do not dump full stacks throw("go of nil func value") ...
只有相同底层类型的变量之间可以进行相互转换(如将 int16 类型转换成 int32 类型),不同底层类型的变量相互转换时会引发编译错误(如将 bool 类型转换为 int 类型) package main import ( "fmt" "math" ) func main() { // 输出各数值范围 fmt.Println("int8 range:", math.MinInt8, math.MaxInt8) ...