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client-verbose.go
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/
client-verbose.go
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package srpc
import (
"context"
"sync/atomic"
"time"
"github.com/sirupsen/logrus"
)
// VClient implements a verbose SRPC client which can log RPC streams.
type VClient struct {
le *logrus.Entry
client Client
execID atomic.Int32
}
// NewVClient constructs a new verbose client wrapper.
func NewVClient(c Client, le *logrus.Entry) *VClient {
return &VClient{le: le, client: c}
}
// ExecCall executes a request/reply RPC with the remote.
func (c *VClient) ExecCall(ctx context.Context, service, method string, in, out Message) (err error) {
t1 := time.Now()
id := c.execID.Add(1) - 1
c.le.Debugf(
"ExecCall(service(%s), method(%s)) => id(%d) started",
service,
method,
id,
)
defer func() {
c.le.Debugf(
"ExecCall(service(%s), method(%s)) => id(%d) dur(%v) err(%v)",
service,
method,
id,
time.Since(t1).String(),
err,
)
}()
err = c.client.ExecCall(ctx, service, method, in, out)
return err
}
// NewStream starts a streaming RPC with the remote & returns the stream.
// firstMsg is optional.
func (c *VClient) NewStream(ctx context.Context, service, method string, firstMsg Message) (stream Stream, err error) {
t1 := time.Now()
defer func() {
c.le.Debugf(
"NewStream(service(%s), method(%s)) => dur(%v) err(%v)",
service,
method,
time.Since(t1).String(),
err,
)
}()
stream, err = c.client.NewStream(ctx, service, method, firstMsg)
return stream, err
}