contiki-gtk/lib/lc.h

#ifndef __LC_H__
#define __LC_H__

typedef void * lc_t;

#define LC_CONCAT2(s1, s2) s1##s2
#define LC_CONCAT(s1, s2) LC_CONCAT2(s1, s2)

#define LC_SET(s)				\
  do {						\
    LC_CONCAT(LC_LABEL, __LINE__):   	        \
    (s) = &&LC_CONCAT(LC_LABEL, __LINE__);	\
  } while(0)

#define LC_RESUME(s)				\
  do {						\
    if(s != NULL) {				\
      goto *s;					\
    }						\
  } while(0)

#define LC_END(s)

#define LC_INIT(s) s = NULL

#endif /* __LC_H__ */