Documentation
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Overview ¶
Package lock provides interprocess locking using a combination of flock and process-local mutex-es
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type InterProcessLock ¶
type InterProcessLock struct {
Path string
// contains filtered or unexported fields
}
InterProcessLock provides a mutex that works across the current process and across all other processes. It works by first acquiring a local lock and then a file lock.
The reason that a local process lock is used first, is due to the limits of interprocess locking in Linux -> we have to avoid reusing the same lock file multiple times in the same process or closing one of the locks will unlock all the others. See: http://0pointer.de/blog/projects/locking.html
func (*InterProcessLock) Lock ¶
func (l *InterProcessLock) Lock() error
Lock the lock, blocking until the lock has been acquired
func (*InterProcessLock) MustLock ¶
func (l *InterProcessLock) MustLock()
MustLock engages the lock and panics if that fails (it will still block if the lock is already locked, since that is not an error)
func (*InterProcessLock) MustUnlock ¶
func (l *InterProcessLock) MustUnlock()
MustUnlock removes the lock and panics if that fails
Source Files