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feat: support custom
grpc.MaxConcurrentStreams
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Original file line number | Diff line number | Diff line change |
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// Copyright 2018 The etcd Authors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
|
||
package flags | ||
|
||
import ( | ||
"flag" | ||
"fmt" | ||
"strconv" | ||
) | ||
|
||
type uint32Value uint32 | ||
|
||
func NewUint32Value(s string) *uint32Value { | ||
var u uint32Value | ||
if s == "" || s == "0" { | ||
return &u | ||
} | ||
if err := u.Set(s); err != nil { | ||
panic(fmt.Sprintf("new uint32Value should never fail: %v", err)) | ||
} | ||
return &u | ||
} | ||
|
||
func (i *uint32Value) Set(s string) error { | ||
v, err := strconv.ParseUint(s, 0, 32) | ||
*i = uint32Value(v) | ||
return err | ||
} | ||
func (i *uint32Value) Type() string { | ||
return "uint32" | ||
} | ||
func (i *uint32Value) String() string { return strconv.FormatUint(uint64(*i), 10) } | ||
|
||
// Uint32FromFlag return the uint32 value of a flag with the given name | ||
func Uint32FromFlag(fs *flag.FlagSet, name string) uint32 { | ||
val := *fs.Lookup(name).Value.(*uint32Value) | ||
return uint32(val) | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,57 @@ | ||
// Copyright 2018 The etcd Authors | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
|
||
package flags | ||
|
||
import ( | ||
"reflect" | ||
"testing" | ||
) | ||
|
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func TestInvalidUint32(t *testing.T) { | ||
tests := []string{ | ||
// string | ||
"invalid", | ||
// negative number | ||
"-1", | ||
// float number | ||
"0.1", | ||
"-0.2", | ||
// larger than math.MaxUint32 | ||
"4294967296", | ||
} | ||
for i, in := range tests { | ||
var u uint32Value | ||
if err := u.Set(in); err == nil { | ||
t.Errorf(`#%d: unexpected nil error for in=%q`, i, in) | ||
} | ||
} | ||
} | ||
|
||
func TestUint32Value(t *testing.T) { | ||
tests := []struct { | ||
s string | ||
exp uint32 | ||
}{ | ||
{s: "0", exp: 0}, | ||
{s: "1", exp: 1}, | ||
{s: "", exp: 0}, | ||
} | ||
for i := range tests { | ||
ss := uint32(*NewUint32Value(tests[i].s)) | ||
if !reflect.DeepEqual(tests[i].exp, ss) { | ||
t.Fatalf("#%d: expected %q, got %q", i, tests[i].exp, ss) | ||
} | ||
} | ||
} |
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