1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef A_DEBUG_H_
18
19#define A_DEBUG_H_
20
21#include <string.h>
22
23#include <media/stagefright/foundation/ABase.h>
24#include <media/stagefright/foundation/AString.h>
25#include <utils/Log.h>
26
27namespace android {
28
29#define LITERAL_TO_STRING_INTERNAL(x)    #x
30#define LITERAL_TO_STRING(x) LITERAL_TO_STRING_INTERNAL(x)
31
32#define CHECK(condition)                                \
33    LOG_ALWAYS_FATAL_IF(                                \
34            !(condition),                               \
35            "%s",                                       \
36            __FILE__ ":" LITERAL_TO_STRING(__LINE__)    \
37            " CHECK(" #condition ") failed.")
38
39#define MAKE_COMPARATOR(suffix,op)                          \
40    template<class A, class B>                              \
41    AString Compare_##suffix(const A &a, const B &b) {      \
42        AString res;                                        \
43        if (!(a op b)) {                                    \
44            res.append(a);                                  \
45            res.append(" vs. ");                            \
46            res.append(b);                                  \
47        }                                                   \
48        return res;                                         \
49    }
50
51MAKE_COMPARATOR(EQ,==)
52MAKE_COMPARATOR(NE,!=)
53MAKE_COMPARATOR(LE,<=)
54MAKE_COMPARATOR(GE,>=)
55MAKE_COMPARATOR(LT,<)
56MAKE_COMPARATOR(GT,>)
57
58#define CHECK_OP(x,y,suffix,op)                                         \
59    do {                                                                \
60        AString ___res = Compare_##suffix(x, y);                        \
61        if (!___res.empty()) {                                          \
62            AString ___full =                                           \
63                __FILE__ ":" LITERAL_TO_STRING(__LINE__)                \
64                    " CHECK_" #suffix "( " #x "," #y ") failed: ";      \
65            ___full.append(___res);                                     \
66                                                                        \
67            LOG_ALWAYS_FATAL("%s", ___full.c_str());                    \
68        }                                                               \
69    } while (false)
70
71#define CHECK_EQ(x,y)   CHECK_OP(x,y,EQ,==)
72#define CHECK_NE(x,y)   CHECK_OP(x,y,NE,!=)
73#define CHECK_LE(x,y)   CHECK_OP(x,y,LE,<=)
74#define CHECK_LT(x,y)   CHECK_OP(x,y,LT,<)
75#define CHECK_GE(x,y)   CHECK_OP(x,y,GE,>=)
76#define CHECK_GT(x,y)   CHECK_OP(x,y,GT,>)
77
78#define TRESPASS() \
79        LOG_ALWAYS_FATAL(                                       \
80            __FILE__ ":" LITERAL_TO_STRING(__LINE__)            \
81                " Should not be here.");
82
83}  // namespace android
84
85#endif  // A_DEBUG_H_
86
87