AI代码解释 //src/runtime/os_linux.go// Atomically,// if(*addr == val) sleep// Might be woken up spuriously; that's allowed.// Don't sleep longer than ns; ns < 0 means forever.//go:nosplitfuncfutexsleep(addr*uint32,val uint32,ns int64){// Some Linux kernels have a bug where...
it's the next G to run.next := _p_.runnext// If the runnext is non-0 and the CAS fails, it could only have been stolen by another P,// because other Ps can race to set runnext to 0, but only the current P can set it to non-0.// ...
AI代码解释 // A EventLoop is a network server.type EventLoopinterface{// Serve registers a listener and runs blockingly to provide services, including listening to ports,// accepting connections and processing trans data. When an exception occurs or Shutdown is invoked,// Serve will return an...
} // Goroutines must not split stacks in Gsyscall status (it would corrupt g->sched). // We set stackguard to StackPreempt so that first split stack check calls morestack. // Morestack detects this case and throws. g->stackguard0=StackPreempt; m->locks--; } 这里提一个问题:为什么每...
/* Parses a single fingerprint from the memory region given. If anon-null fingerprint is returned, the user is in charge of freeing itwhen done. This function does not require the fingerprint to be 100%complete since it is used by scripts such as scripts/fingerwatch forwhich some partial ...
first :=66//intsecond :=77.7//float64//sum := first + second //int + float64 not allowed,编译不通过,故需要下面显示转换,golang没有自动转换功能sum := first +int(second)//second is converted to intfmt.Println(sum) } 但是有例外情况 ...
now without an associated finalizer. Assuming that SetFinalizer// is not called again, the next time the garbage collector sees// that obj is unreachable, it will free obj./// SetFinalizer(obj, nil) clears any finalizer associated with obj./// The argument obj must be a pointer to an ...
// Unlock unlocks m.// It is a run-time error if m is not locked on entry to Unlock./// A locked Mutex is not associated with a particular goroutine.// It is allowed for one goroutine to lock a Mutex and then// arrange for another goroutine to unlock it.// 解锁一个没有锁定...
One difference from UniqueKey is that Id may be generated in the Response and may not be obtained when making the request. Id() any: Get the ID. SetData(any): Set the data, which is the complete data to be stored. For standardization, it is required to be a pointer type. When ...
(netpollblockcommit, unsafe.Pointer(gpp), waitReasonIOWait, traceEvGoBlockNet, 5) } // be careful to not lose concurrent READY notification old := atomic.Xchguintptr(gpp, 0) if old > pdWait { throw("runtime: corrupted polldesc") } return old == pdReady } // gopark 会停住当前的 ...