mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-30 07:32:45 +00:00
62788aa116
Bumps codeberg.org/gruf/go-mutexes from 1.4.0 to 1.4.1. --- updated-dependencies: - dependency-name: codeberg.org/gruf/go-mutexes dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
package mutexes
|
|
|
|
import (
|
|
"time"
|
|
)
|
|
|
|
// TimeoutMutex defines a Mutex with timeouts on locks
|
|
type TimeoutMutex interface {
|
|
Mutex
|
|
|
|
// LockFunc is functionally the same as Lock(), but allows setting a custom hook called on timeout
|
|
LockFunc(func()) func()
|
|
}
|
|
|
|
// TimeoutRWMutex defines a RWMutex with timeouts on locks
|
|
type TimeoutRWMutex interface {
|
|
RWMutex
|
|
|
|
// LockFunc is functionally the same as Lock(), but allows setting a custom hook called on timeout
|
|
LockFunc(func()) func()
|
|
|
|
// RLockFunc is functionally the same as RLock(), but allows setting a custom hook called on timeout
|
|
RLockFunc(func()) func()
|
|
}
|
|
|
|
// WithTimeout wraps the supplied Mutex to add a timeout
|
|
func WithTimeout(mu Mutex, d time.Duration) TimeoutMutex {
|
|
return &timeoutMutex{mu: mu, d: d}
|
|
}
|
|
|
|
// WithTimeoutRW wraps the supplied RWMutex to add read/write timeouts
|
|
func WithTimeoutRW(mu RWMutex, rd, wd time.Duration) TimeoutRWMutex {
|
|
return &timeoutRWMutex{mu: mu, rd: rd, wd: wd}
|
|
}
|
|
|
|
// timeoutMutex wraps a Mutex with timeout
|
|
type timeoutMutex struct {
|
|
mu Mutex // mu is the wrapped mutex
|
|
d time.Duration // d is the timeout duration
|
|
}
|
|
|
|
func (mu *timeoutMutex) Lock() func() {
|
|
return mu.LockFunc(func() { panic("lock timed out") })
|
|
}
|
|
|
|
func (mu *timeoutMutex) LockFunc(fn func()) func() {
|
|
return mutexTimeout(mu.d, mu.mu.Lock(), fn)
|
|
}
|
|
|
|
// TimeoutRWMutex wraps a RWMutex with timeouts
|
|
type timeoutRWMutex struct {
|
|
mu RWMutex // mu is the wrapped rwmutex
|
|
rd time.Duration // rd is the rlock timeout duration
|
|
wd time.Duration // wd is the lock timeout duration
|
|
}
|
|
|
|
func (mu *timeoutRWMutex) Lock() func() {
|
|
return mu.LockFunc(func() { panic("lock timed out") })
|
|
}
|
|
|
|
func (mu *timeoutRWMutex) LockFunc(fn func()) func() {
|
|
return mutexTimeout(mu.wd, mu.mu.Lock(), fn)
|
|
}
|
|
|
|
func (mu *timeoutRWMutex) RLock() func() {
|
|
return mu.RLockFunc(func() { panic("rlock timed out") })
|
|
}
|
|
|
|
func (mu *timeoutRWMutex) RLockFunc(fn func()) func() {
|
|
return mutexTimeout(mu.rd, mu.mu.RLock(), fn)
|
|
}
|
|
|
|
// mutexTimeout performs a timed unlock, calling supplied fn if timeout is reached
|
|
func mutexTimeout(d time.Duration, unlock func(), fn func()) func() {
|
|
if d < 1 {
|
|
// No timeout, just unlock
|
|
return unlock
|
|
}
|
|
|
|
// Start timer to call fn.
|
|
t := time.AfterFunc(d, fn)
|
|
|
|
// Wrap unlock to stop mutex timer.
|
|
return func() { t.Stop(); unlock() }
|
|
}
|