forked from M-Labs/artiq
34 lines
568 B
C
34 lines
568 B
C
#include "exceptions.h"
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#define MAX_EXCEPTION_CONTEXTS 64
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struct exception_context {
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void *jb[5];
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};
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static struct exception_context exception_contexts[MAX_EXCEPTION_CONTEXTS];
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static int ec_top;
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static int stored_id;
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void *exception_push(void)
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{
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if(ec_top >= MAX_EXCEPTION_CONTEXTS)
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exception_raise(EID_NOMEM);
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return exception_contexts[ec_top++].jb;
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}
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void exception_pop(void)
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{
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ec_top--;
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}
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int exception_getid(void)
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{
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return stored_id;
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}
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void exception_raise(int id)
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{
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__builtin_longjmp(exception_contexts[--ec_top].jb, 1);
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}
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