diff options
Diffstat (limited to 'vendor/github.com/gopackage/ddp/ddp.go')
-rw-r--r-- | vendor/github.com/gopackage/ddp/ddp.go | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/vendor/github.com/gopackage/ddp/ddp.go b/vendor/github.com/gopackage/ddp/ddp.go new file mode 100644 index 00000000..910adafd --- /dev/null +++ b/vendor/github.com/gopackage/ddp/ddp.go @@ -0,0 +1,79 @@ +// Package ddp implements the MeteorJS DDP protocol over websockets. Fallback +// to longpolling is NOT supported (and is not planned on ever being supported +// by this library). We will try to model the library after `net/http` - right +// now the library is barebones and doesn't provide the pluggability of http. +// However, that's the goal for the package eventually. +package ddp + +import ( + "fmt" + "log" + "sync" + "time" +) + +// debugLog is true if we should log debugging information about the connection +var debugLog = true + +// The main file contains common utility types. + +// ------------------------------------------------------------------- + +// idManager provides simple incrementing IDs for ddp messages. +type idManager struct { + // nextID is the next ID for API calls + nextID uint64 + // idMutex is a mutex to protect ID updates + idMutex *sync.Mutex +} + +// newidManager creates a new instance and sets up resources. +func newidManager() *idManager { + return &idManager{idMutex: new(sync.Mutex)} +} + +// newID issues a new ID for use in calls. +func (id *idManager) newID() string { + id.idMutex.Lock() + next := id.nextID + id.nextID++ + id.idMutex.Unlock() + return fmt.Sprintf("%x", next) +} + +// ------------------------------------------------------------------- + +// pingTracker tracks in-flight pings. +type pingTracker struct { + handler func(error) + timeout time.Duration + timer *time.Timer +} + +// ------------------------------------------------------------------- + +// Call represents an active RPC call. +type Call struct { + ID string // The uuid for this method call + ServiceMethod string // The name of the service and method to call. + Args interface{} // The argument to the function (*struct). + Reply interface{} // The reply from the function (*struct). + Error error // After completion, the error status. + Done chan *Call // Strobes when call is complete. + Owner *Client // Client that owns the method call +} + +// done removes the call from any owners and strobes the done channel with itself. +func (call *Call) done() { + delete(call.Owner.calls, call.ID) + select { + case call.Done <- call: + // ok + default: + // We don't want to block here. It is the caller's responsibility to make + // sure the channel has enough buffer space. See comment in Go(). + if debugLog { + log.Println("rpc: discarding Call reply due to insufficient Done chan capacity") + } + } +} |