go.uber.org/yarpc@v1.72.1/transport/grpc/dialer.go (about)

     1  // Copyright (c) 2022 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package grpc
    22  
    23  import (
    24  	"go.uber.org/yarpc/api/peer"
    25  )
    26  
    27  // NewDialer creates a transport that is decorated to retain peers with
    28  // additional gRPC dial options.
    29  func (t *Transport) NewDialer(options ...DialOption) *Dialer {
    30  	return &Dialer{trans: t, options: newDialOptions(options)}
    31  }
    32  
    33  // Dialer is a decorator for a gRPC transport that threads dial options for
    34  // every retained peer.
    35  type Dialer struct {
    36  	trans   *Transport
    37  	options *dialOptions
    38  }
    39  
    40  var _ peer.Transport = (*Dialer)(nil)
    41  
    42  // RetainPeer retains the identified peer, passing dial options.
    43  func (d *Dialer) RetainPeer(id peer.Identifier, ps peer.Subscriber) (peer.Peer, error) {
    44  	return d.trans.retainPeer(id, d.options, ps)
    45  }
    46  
    47  // ReleasePeer releases the identified peer.
    48  func (d *Dialer) ReleasePeer(id peer.Identifier, ps peer.Subscriber) error {
    49  	return d.trans.ReleasePeer(id, ps)
    50  }