except.h

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00001 
00038 #ifndef MWARE_EXCEPT_H
00039 #define MWARE_EXCEPT_H
00040 
00041 #include <cfg/debug.h>
00042 
00043 #include <setjmp.h>
00044 
00045 #define EXCEPT_CONTEXTS 8
00046 
00056 extern jmp_buf except_stack[EXCEPT_CONTEXTS];
00057 extern int except_top;
00058 
00059 #define PUSH_EXCEPT (ASSERT(except_top < EXCEPT_CONTEXTS), setjmp(except_stack[except_top++]))
00060 #define POP_EXCEPT  (ASSERT(except_top > 0), --except_top)
00061 #define DO_EXCEPT   (ASSERT(except_top > 0), longjmp(except_stack[--except_top], true))
00062 
00113 #define TRY          if (PUSH_EXCEPT) { {
00114 #define TRY_END      } POP_EXCEPT; }
00115 #define CATCH        } POP_EXCEPT; } else {
00116 #define CATCH_END    }
00117 #define THROW        DO_EXCEPT
00118 
00119 
00120 #define EXCEPT_DEFINE \
00121     jmp_buf except_stack[EXCEPT_CONTEXTS]; \
00122     int except_top;
00123 
00124 #endif /* MWARE_EXCEPT_H */