Documentation
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Overview ¶
Package syncutil provides various concurrency mechanisms.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func GoroutineID ¶
func GoroutineID() int64
Types ¶
type Gate ¶
type Gate struct {
// contains filtered or unexported fields
}
A Gate limits concurrency.
type Group ¶
type Group struct {
// contains filtered or unexported fields
}
A Group is like a sync.WaitGroup and coordinates doing multiple things at once. Its zero value is ready to use.
func (*Group) Err ¶
Err waits for all previous calls to Go to complete and returns the first non-nil error, or nil.
func (*Group) Errs ¶
Errs waits for all previous calls to Go to complete and returns all non-nil errors.
type RWMutexTracker ¶
type RWMutexTracker struct {
// contains filtered or unexported fields
}
RWMutexTracker is a sync.RWMutex that tracks who owns the current exclusive lock. It's used for debugging deadlocks.
func (*RWMutexTracker) Holder ¶
func (m *RWMutexTracker) Holder() string
Holder returns the stack trace of the current exclusive lock holder's stack when it acquired the lock (with Lock). It returns the empty string if the lock is not currently held.
func (*RWMutexTracker) Lock ¶
func (m *RWMutexTracker) Lock()
func (*RWMutexTracker) RLock ¶
func (m *RWMutexTracker) RLock()
func (*RWMutexTracker) RUnlock ¶
func (m *RWMutexTracker) RUnlock()
func (*RWMutexTracker) Unlock ¶
func (m *RWMutexTracker) Unlock()
type Sem ¶
type Sem struct {
// contains filtered or unexported fields
}
Sem implements a semaphore that can have multiple units acquired/released at a time.
func (*Sem) Acquire ¶
Acquire will deduct n units from the semaphore. If the deduction would result in the available units falling below zero, the call will block until another go routine returns units via a call to Release. If more units are requested than the semaphore is configured to hold, error will be non-nil.
Source Files