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31 ******************************************************************************/
32 /*****************************************************************************/
37 * This file contains assert related functions.
40 * MODIFICATION HISTORY:
42 * Ver Who Date Changes
43 * ----- ---- -------- -------------------------------------------------------
44 * 1.00a hbm 07/14/09 First release
47 ******************************************************************************/
49 #ifndef XIL_ASSERT_H /* prevent circular inclusions */
50 #define XIL_ASSERT_H /* by using protection macros */
57 /***************************** Include Files *********************************/
60 /************************** Constant Definitions *****************************/
62 #define XIL_ASSERT_NONE 0
63 #define XIL_ASSERT_OCCURRED 1
66 extern unsigned int Xil_AssertStatus;
67 extern void Xil_Assert(const char *, int);
68 void XNullHandler(void *NullParameter);
71 * This data type defines a callback to be invoked when an
72 * assert occurs. The callback is invoked only when asserts are enabled
74 typedef void (*Xil_AssertCallback) (const char *File, int Line);
76 /***************** Macros (Inline Functions) Definitions *********************/
80 /*****************************************************************************/
82 * This assert macro is to be used for functions that do not return anything
83 * (void). This in conjunction with the Xil_AssertWait boolean can be used to
84 * accomodate tests so that asserts which fail allow execution to continue.
86 * @param expression is the expression to evaluate. If it evaluates to
87 * false, the assert occurs.
89 * @return Returns void unless the Xil_AssertWait variable is true, in which
90 * case no return is made and an infinite loop is entered.
94 ******************************************************************************/
95 #define Xil_AssertVoid(Expression) \
98 Xil_AssertStatus = XIL_ASSERT_NONE; \
100 Xil_Assert(__FILE__, __LINE__); \
101 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
106 /*****************************************************************************/
108 * This assert macro is to be used for functions that do return a value. This in
109 * conjunction with the Xil_AssertWait boolean can be used to accomodate tests
110 * so that asserts which fail allow execution to continue.
112 * @param expression is the expression to evaluate. If it evaluates to false,
115 * @return Returns 0 unless the Xil_AssertWait variable is true, in which
116 * case no return is made and an infinite loop is entered.
120 ******************************************************************************/
121 #define Xil_AssertNonvoid(Expression) \
124 Xil_AssertStatus = XIL_ASSERT_NONE; \
126 Xil_Assert(__FILE__, __LINE__); \
127 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
132 /*****************************************************************************/
134 * Always assert. This assert macro is to be used for functions that do not
135 * return anything (void). Use for instances where an assert should always
138 * @return Returns void unless the Xil_AssertWait variable is true, in which
139 * case no return is made and an infinite loop is entered.
143 ******************************************************************************/
144 #define Xil_AssertVoidAlways() \
146 Xil_Assert(__FILE__, __LINE__); \
147 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
151 /*****************************************************************************/
153 * Always assert. This assert macro is to be used for functions that do return
154 * a value. Use for instances where an assert should always occur.
156 * @return Returns void unless the Xil_AssertWait variable is true, in which
157 * case no return is made and an infinite loop is entered.
161 ******************************************************************************/
162 #define Xil_AssertNonvoidAlways() \
164 Xil_Assert(__FILE__, __LINE__); \
165 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
172 #define Xil_AssertVoid(Expression)
173 #define Xil_AssertVoidAlways()
174 #define Xil_AssertNonvoid(Expression)
175 #define Xil_AssertNonvoidAlways()
179 /************************** Function Prototypes ******************************/
181 void Xil_AssertSetCallback(Xil_AssertCallback Routine);
187 #endif /* end of protection macro */