sgs_Cntl [function]

int32_t sgs_Cntl( sgs_Context* C, int what, int32_t val )

Modifies the state of the VM or returns info about it.

• The following what values are supported:
  • SGS_CNTL_STATE: sets the new compilation state from val, returns the previous value;
  • SGS_CNTL_GET_STATE: returns the currently set compilation state;
  • SGS_CNTL_MINLEV: sets the new minimum error level from val, returns the previous value;
  • SGS_CNTL_GET_MINLEV: returns the currently set minimum error level;
  • SGS_CNTL_ERRNO: if val is true, sets internal errno to 0, otherwise - to errno, returns the previous value;
  • SGS_CNTL_SET_ERRNO: sets internal errno to val, returns the previous value;
  • SGS_CNTL_GET_ERRNO: returns the currently set internal errno;
  • SGS_CNTL_ERRSUP: sets error suppression lock count to val, returns the previous value;
  • SGS_CNTL_GET_ERRSUP: returns the currently set error suppression lock count for the last stack frame;
  • SGS_CNTL_NUMRETVALS: returns the real number of returned values from last function call;
  • SGS_CNTL_GET_PAUSED: returns whether the execution state is suspended;
  • SGS_CNTL_GET_ABORT: returns whether last function call was aborted;
• Everything else does nothing and returns 0.