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author | Unknwon <u@gogs.io> | 2016-08-30 15:19:53 -0700 |
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committer | Unknwon <u@gogs.io> | 2016-08-30 15:19:53 -0700 |
commit | 43297148b22b976d9cec0c56c863a704f3691c0e (patch) | |
tree | 230bce7c66ae688c447684357bf8bd7cc0315211 /modules/sync | |
parent | c0c1a4b01b4dee3cc85d26f4081ff0a456a16b38 (diff) | |
download | gitea-43297148b22b976d9cec0c56c863a704f3691c0e.tar.gz gitea-43297148b22b976d9cec0c56c863a704f3691c0e.zip |
modules/sync: rename SingleInstancePool to ExclusivePool
Diffstat (limited to 'modules/sync')
-rw-r--r-- | modules/sync/exclusive_pool.go (renamed from modules/sync/single_instance_pool.go) | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/modules/sync/single_instance_pool.go b/modules/sync/exclusive_pool.go index 01d95fd0b5..744cc7c996 100644 --- a/modules/sync/single_instance_pool.go +++ b/modules/sync/exclusive_pool.go @@ -8,14 +8,15 @@ import ( "sync" ) -// SingleInstancePool is a pool of non-identical instances +// ExclusivePool is a pool of non-identical instances // that only one instance with same identity is in the pool at a time. -// In other words, only instances with different identities can exist -// at the same time. +// In other words, only instances with different identities can be in +// the pool the same time. If another instance with same identity tries +// to get into the pool, it hangs until previous instance left the pool. // // This pool is particularly useful for performing tasks on same resource // on the file system in different goroutines. -type SingleInstancePool struct { +type ExclusivePool struct { lock sync.Mutex // pool maintains locks for each instance in the pool. @@ -29,9 +30,9 @@ type SingleInstancePool struct { count map[string]int } -// NewSingleInstancePool initializes and returns a new SingleInstancePool object. -func NewSingleInstancePool() *SingleInstancePool { - return &SingleInstancePool{ +// NewExclusivePool initializes and returns a new ExclusivePool object. +func NewExclusivePool() *ExclusivePool { + return &ExclusivePool{ pool: make(map[string]*sync.Mutex), count: make(map[string]int), } @@ -39,7 +40,7 @@ func NewSingleInstancePool() *SingleInstancePool { // CheckIn checks in an instance to the pool and hangs while instance // with same indentity is using the lock. -func (p *SingleInstancePool) CheckIn(identity string) { +func (p *ExclusivePool) CheckIn(identity string) { p.lock.Lock() lock, has := p.pool[identity] @@ -55,7 +56,7 @@ func (p *SingleInstancePool) CheckIn(identity string) { // CheckOut checks out an instance from the pool and releases the lock // to let other instances with same identity to grab the lock. -func (p *SingleInstancePool) CheckOut(identity string) { +func (p *ExclusivePool) CheckOut(identity string) { p.lock.Lock() defer p.lock.Unlock() |