forked from iovisor/bcc
-
Notifications
You must be signed in to change notification settings - Fork 0
/
exception.h
60 lines (51 loc) · 1.5 KB
/
exception.h
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
55
56
57
58
59
60
/*
* Copyright (c) 2015 PLUMgrid, Inc.
*
* 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:https://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.
*/
#pragma once
#include <exception>
#include <string>
#include <tuple>
#include <cstring>
#include <cerrno>
#include <cstdlib>
#undef NDEBUG
namespace ebpf {
template <typename... Args>
std::tuple<int, std::string> mkstatus(int ret, const char *fmt, Args... args) {
char buf[1024];
snprintf(buf, sizeof(buf), fmt, args...);
return std::make_tuple(ret, std::string(buf));
}
static inline std::tuple<int, std::string> mkstatus(int ret, const char *msg) {
return std::make_tuple(ret, std::string(msg));
}
static inline std::tuple<int, std::string> mkstatus(int ret) {
return std::make_tuple(ret, std::string());
}
#define TRY(CMD) \
do { \
int __status = (CMD); \
if (__status != 0) { \
return __status; \
} \
} while (0)
#define TRY2(CMD) \
do { \
std::tuple<int, std::string> __stp = (CMD); \
if (std::get<0>(__stp) != 0) { \
return __stp; \
} \
} while (0)
} // namespace ebpf