blob: 7b7428090f3c650ebdd01c9b568da0f395283921 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
//
//
// Copyright 2015 gRPC 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.
//
//
#ifndef GRPC_SRC_CORE_LIB_GPRPP_ENV_H
#define GRPC_SRC_CORE_LIB_GPRPP_ENV_H
#include <grpc/support/port_platform.h>
#include <util/generic/string.h>
#include <util/string/cast.h>
#include "y_absl/types/optional.h"
namespace grpc_core {
// Gets the environment variable value with the specified name. */
y_absl::optional<TString> GetEnv(const char* name);
// Sets the environment with the specified name to the specified value.
void SetEnv(const char* name, const char* value);
inline void SetEnv(const char* name, const TString& value) {
SetEnv(name, value.c_str());
}
// Deletes the variable name from the environment.
void UnsetEnv(const char* name);
template <typename T>
void SetOrUnsetEnv(const char* name, const y_absl::optional<T>& value) {
if (value.has_value()) {
SetEnv(name, value.value());
} else {
UnsetEnv(name);
}
}
} // namespace grpc_core
#endif // GRPC_SRC_CORE_LIB_GPRPP_ENV_H
|
