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40 ******************************************************************************/
41 /*****************************************************************************/
46 * This file contains assert related functions.
49 * MODIFICATION HISTORY:
51 * Ver Who Date Changes
52 * ----- ---- -------- -------------------------------------------------------
53 * 1.00a hbm 07/14/09 First release
56 ******************************************************************************/
58 #ifndef XIL_ASSERT_H /* prevent circular inclusions */
59 #define XIL_ASSERT_H /* by using protection macros */
66 /***************************** Include Files *********************************/
69 /************************** Constant Definitions *****************************/
71 #define XIL_ASSERT_NONE 0
72 #define XIL_ASSERT_OCCURRED 1
75 extern unsigned int Xil_AssertStatus;
76 extern void Xil_Assert(const char *, int);
77 void XNullHandler(void *NullParameter);
80 * This data type defines a callback to be invoked when an
81 * assert occurs. The callback is invoked only when asserts are enabled
83 typedef void (*Xil_AssertCallback) (const char *File, int Line);
85 /***************** Macros (Inline Functions) Definitions *********************/
89 /*****************************************************************************/
91 * This assert macro is to be used for functions that do not return anything
92 * (void). This in conjunction with the Xil_AssertWait boolean can be used to
93 * accomodate tests so that asserts which fail allow execution to continue.
95 * @param expression is the expression to evaluate. If it evaluates to
96 * false, the assert occurs.
98 * @return Returns void unless the Xil_AssertWait variable is true, in which
99 * case no return is made and an infinite loop is entered.
103 ******************************************************************************/
104 #define Xil_AssertVoid(Expression) \
107 Xil_AssertStatus = XIL_ASSERT_NONE; \
109 Xil_Assert(__FILE__, __LINE__); \
110 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
115 /*****************************************************************************/
117 * This assert macro is to be used for functions that do return a value. This in
118 * conjunction with the Xil_AssertWait boolean can be used to accomodate tests
119 * so that asserts which fail allow execution to continue.
121 * @param expression is the expression to evaluate. If it evaluates to false,
124 * @return Returns 0 unless the Xil_AssertWait variable is true, in which
125 * case no return is made and an infinite loop is entered.
129 ******************************************************************************/
130 #define Xil_AssertNonvoid(Expression) \
133 Xil_AssertStatus = XIL_ASSERT_NONE; \
135 Xil_Assert(__FILE__, __LINE__); \
136 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
141 /*****************************************************************************/
143 * Always assert. This assert macro is to be used for functions that do not
144 * return anything (void). Use for instances where an assert should always
147 * @return Returns void unless the Xil_AssertWait variable is true, in which
148 * case no return is made and an infinite loop is entered.
152 ******************************************************************************/
153 #define Xil_AssertVoidAlways() \
155 Xil_Assert(__FILE__, __LINE__); \
156 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
160 /*****************************************************************************/
162 * Always assert. This assert macro is to be used for functions that do return
163 * a value. Use for instances where an assert should always occur.
165 * @return Returns void unless the Xil_AssertWait variable is true, in which
166 * case no return is made and an infinite loop is entered.
170 ******************************************************************************/
171 #define Xil_AssertNonvoidAlways() \
173 Xil_Assert(__FILE__, __LINE__); \
174 Xil_AssertStatus = XIL_ASSERT_OCCURRED; \
181 #define Xil_AssertVoid(Expression)
182 #define Xil_AssertVoidAlways()
183 #define Xil_AssertNonvoid(Expression)
184 #define Xil_AssertNonvoidAlways()
188 /************************** Function Prototypes ******************************/
190 void Xil_AssertSetCallback(Xil_AssertCallback Routine);
196 #endif /* end of protection macro */