1 /******************************************************************************
2 *
3 * Copyright 1999-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 #pragma once
20
21 #include <stdint.h>
22
23 #ifdef __cplusplus
24
25 #include <bluetooth/log.h>
26
27 #include <array>
28 #include <iomanip>
29 #include <sstream>
30 #include <type_traits>
31
32 #include "os/logging/log_adapter.h"
33
34 /* Prints integral parameter x as hex string, with '0' fill */
35 template <typename T>
loghex(T x)36 std::string loghex(T x) {
37 static_assert(std::is_integral<T>::value,
38 "loghex parameter must be integral.");
39 std::stringstream tmp;
40 tmp << std::showbase << std::internal << std::hex << std::setfill('0')
41 << std::setw((sizeof(T) * 2) + 2) << +x;
42 return tmp.str();
43 }
44
45 /* Prints integral array as hex string, with '0' fill */
46 template <typename T, size_t N>
loghex(std::array<T,N> array)47 std::string loghex(std::array<T, N> array) {
48 static_assert(std::is_integral<T>::value,
49 "type stored in array must be integral.");
50 std::stringstream tmp;
51 for (const auto& x : array) {
52 tmp << std::internal << std::hex << std::setfill('0')
53 << std::setw((sizeof(uint8_t) * 2) + 2) << +x;
54 }
55 return tmp.str();
56 }
57
58 /**
59 * Append a field name to a string.
60 *
61 * The field names are added to the string with "|" in between.
62 *
63 * @param p_result a pointer to the result string to add the field name to
64 * @param append if true the field name will be added
65 * @param name the field name to add
66 * @return the result string
67 */
AppendField(std::string * p_result,bool append,const std::string & name)68 inline std::string& AppendField(std::string* p_result, bool append,
69 const std::string& name) {
70 bluetooth::log::assert_that(p_result != nullptr,
71 "assert failed: p_result != nullptr");
72 if (!append) return *p_result;
73 if (!p_result->empty()) *p_result += "|";
74 *p_result += name;
75 return *p_result;
76 }
77
78 #endif // __cplusplus
79