mirror of https://github.com/m-labs/artiq.git
34 lines
582 B
C
34 lines
582 B
C
#include "exceptions.h"
|
|
|
|
#define MAX_EXCEPTION_CONTEXTS 64
|
|
|
|
struct exception_context {
|
|
void *jb[5];
|
|
};
|
|
|
|
static struct exception_context exception_contexts[MAX_EXCEPTION_CONTEXTS];
|
|
static int ec_top;
|
|
static int stored_id;
|
|
|
|
void *exception_push(void)
|
|
{
|
|
if(ec_top >= MAX_EXCEPTION_CONTEXTS)
|
|
exception_raise(EID_NOMEM);
|
|
return exception_contexts[ec_top++].jb;
|
|
}
|
|
|
|
void exception_pop(int levels)
|
|
{
|
|
ec_top -= levels;
|
|
}
|
|
|
|
int exception_getid(void)
|
|
{
|
|
return stored_id;
|
|
}
|
|
|
|
void exception_raise(int id)
|
|
{
|
|
__builtin_longjmp(exception_contexts[--ec_top].jb, 1);
|
|
}
|