Local continuations
[Protothreads]

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Detailed Description

Local continuations form the basis for implementing protothreads.

A local continuation can be set in a specific function to capture the state of the function. After a local continuation has been set can be resumed in order to restore the state of the function at the point where the local continuation was set.

Files
file	lc.h
	Local continuations.
file	lc-switch.h
	Implementation of local continuations based on switch() statment.
file	lc-addrlabels.h
	Implementation of local continuations based on the "Labels as values" feature of gcc.
Defines
#define	__LC_SWTICH_H__
#define	LC_INIT(s)   s = 0;
#define	LC_RESUME(s)   switch(s) { case 0:
#define	LC_SET(s)   s = __LINE__; case __LINE__:
#define	LC_END(s)   }
#define	LC_INIT(s)   s = NULL
#define	LC_RESUME(s)
#define	LC_SET(s)   do { ({ __label__ resume; resume: (s) = &&resume; }); }while(0)
#define	LC_END(s)
Typedefs
typedef unsigned short	lc_t
typedef void *	lc_t

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