forked from uber/tchannel-go
/
internal_multi_client.go
109 lines (88 loc) · 2.88 KB
/
internal_multi_client.go
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// Copyright (c) 2015 Uber Technologies, Inc.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package benchmark
import (
"time"
"github.com/uber/tchannel-go/testutils"
)
type internalMultiClient struct {
clients []inProcClient
}
func newInternalMultiClient(hosts []string, opts *options) Client {
clients := make([]inProcClient, opts.numClients)
opts.numClients = 1
for i := range clients {
clients[i] = newClient(hosts, opts)
}
return &internalMultiClient{clients: clients}
}
func (c *internalMultiClient) Warmup() error {
for _, c := range c.clients {
if err := c.Warmup(); err != nil {
return err
}
}
return nil
}
func (c *internalMultiClient) Close() {
for _, client := range c.clients {
client.Close()
}
}
func (c *internalMultiClient) RawCall(n int) ([]time.Duration, error) {
return c.makeCalls(n, func(c inProcClient) callFunc {
return c.RawCallBuffer
})
}
func (c *internalMultiClient) ThriftCall(n int) ([]time.Duration, error) {
return c.makeCalls(n, func(c inProcClient) callFunc {
return c.ThriftCallBuffer
})
}
type callFunc func([]time.Duration) error
type clientToCallFunc func(c inProcClient) callFunc
func (c *internalMultiClient) makeCalls(n int, f clientToCallFunc) ([]time.Duration, error) {
buckets := testutils.Buckets(n, len(c.clients))
errCs := make([]chan error, len(c.clients))
var start int
latencies := make([]time.Duration, n)
for i := range c.clients {
calls := buckets[i]
end := start + calls
errCs[i] = c.callUsingClient(latencies[start:end], f(c.clients[i]))
start = end
}
for _, errC := range errCs {
if err := <-errC; err != nil {
return nil, err
}
}
return latencies, nil
}
func (c *internalMultiClient) callUsingClient(latencies []time.Duration, f callFunc) chan error {
errC := make(chan error, 1)
if len(latencies) == 0 {
errC <- nil
return errC
}
go func() {
errC <- f(latencies)
}()
return errC
}