1 #ifndef __DALI_COMMON_H__
2 #define __DALI_COMMON_H__
5 * Copyright (c) 2015 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
24 #include <emscripten/emscripten.h>
27 * Definitions for shared library support
29 * If a library is configured with --enable-exportall or --enable-debug
30 * then HIDE_DALI_INTERNALS is not defined, and nothing is hidden.
31 * If it is configured without these options (the default), then HIDE_INTERNALS
32 * is defined when building the library, visibility is automatically hidden, and the explicit
33 * defines below come into use.
34 * When building a library that uses DALI, HIDE_DALI_INTERNALS
37 # ifndef HIDE_DALI_INTERNALS
38 # define DALI_EXPORT_API
39 # define DALI_IMPORT_API
40 # define DALI_INTERNAL
42 # define DALI_EXPORT_API __attribute__ ((visibility ("default")))
43 # define DALI_IMPORT_API __attribute__ ((visibility ("default")))
44 # define DALI_INTERNAL __attribute__ ((visibility ("hidden")))
47 /** Visibility attribute to show method definitions */
48 # define DALI_EXPORT_API
49 /** Visibility attribute to show declarations */
50 # define DALI_IMPORT_API
51 /** Visibility attribute to hide declarations */
52 # define DALI_INTERNAL
55 #if defined (__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L)
59 // C++0x not supported
68 // clang cpp11 check is per feature
69 #if !__has_feature(cxx_constexpr)
70 # error constexpr needed for compile-time-math. Use -std=c+11
78 * @brief The DALi namespace
84 * @brief Method to log assertion message in DALI_ASSERT_ALWAYS macro below.
86 * @param[in] location Where the assertion occurred
87 * @param[in] condition The assertion condition
89 DALI_IMPORT_API void DaliAssertMessage( const char* location, const char* condition );
92 * @brief Exception class for Dali Core library - Raised by assertions in codebase.
94 class DALI_IMPORT_API DaliException
100 * Will always display a backtrace when raised in a debug build.
102 * @param[in] location - the location of the assertion
103 * @param[in] condition - The assertion condition
105 DaliException( const char* location, const char* condition );
107 const char* location;
108 const char* condition;
114 * @brief An invariant concurrent assertion to ensure its argument always evaluates TRUE.
116 * Use this for rules that must always be true regardless of build options.
117 * For example, Actor must only ever have one parent.
118 * To be clear, this test remains compiled into release builds that are deployed
120 * Semantically, a failure of this test is signalling that dali is giving up and
122 * Since we don't catch the exception, a failure on any thread other than event
123 * will propagate up the call stack and kill that thread.
124 * A failure on the event thread may give the application an opportunity to
125 * recover if there is an application-written exception handler on the call
126 * stack between the throw site and the thread root and the application is built
127 * with a compatible ABI.
128 * Handle this macro with care at the level you would if it expanded to:
129 * if(!cond) { exit(EXIT_FAILURE); }
130 * (which it is often equivalent to in effect).
131 * It should not be used for simple parameter validation for instance.
135 * Strip assert location for release builds, assert text is descriptive enough
136 * This is to save space for low spec devices
138 #if defined(DEBUG_ENABLED)
139 #define ASSERT_LOCATION __PRETTY_FUNCTION__
141 #define ASSERT_LOCATION NULL
146 #define DALI_ASSERT_ALWAYS(cond) \
149 Dali::DaliAssertMessage( ASSERT_LOCATION, #cond ); \
150 throw Dali::DaliException( ASSERT_LOCATION, #cond ); \
151 EM_ASM(print(new Error().stack)); \
155 #define DALI_ASSERT_ALWAYS(cond) \
158 Dali::DaliAssertMessage( ASSERT_LOCATION, #cond ); \
159 throw Dali::DaliException( ASSERT_LOCATION, #cond ); \
164 * @brief An invariant concurrent assertion to ensure its argument evaluates TRUE in debug builds.
166 * Use this to sanity check algorithms and prevent internal programming errors
168 #if defined(DEBUG_ENABLED)
169 #define DALI_ASSERT_DEBUG(cond) DALI_ASSERT_ALWAYS(cond)
171 #define DALI_ASSERT_DEBUG(cond)
174 #endif // __DALI_COMMON_H__