pt.h File Reference

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Data Structures
struct	pt

Macros
#define	LC_ADDRLABELS_H_
#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)
#define	PT_WAITING   0
#define	PT_YIELDED   1
#define	PT_EXITED   2
#define	PT_ENDED   3
Initialization
#define	PT_INIT(pt)
Declaration and definition
#define	PT_THREAD(name_args)
#define	PT_BEGIN(pt)
#define	PT_END(pt)
Blocked wait
#define	PT_WAIT_UNTIL(pt, condition)
#define	PT_WAIT_WHILE(pt, cond)
Hierarchical protothreads
#define	PT_WAIT_THREAD(pt, thread)
#define	PT_SPAWN(pt, child, thread)
Exiting and restarting
#define	PT_RESTART(pt)
#define	PT_EXIT(pt)
Calling a protothread
#define	PT_SCHEDULE(f)
Yielding from a protothread
#define	PT_YIELD(pt)
#define	PT_YIELD_UNTIL(pt, cond)
	Yield from the protothread until a condition occurs. More...

Typedefs
typedef void *	lc_t

Detailed Description

Protothreads implementation.

Author

Adam Dunkels adam@.nosp@m.sics.nosp@m..se

Implementation of local continuations based on the "Labels as values" feature of gcc

Author

Adam Dunkels adam@.nosp@m.sics.nosp@m..se

This implementation of local continuations is based on a special feature of the GCC C compiler called "labels as values". This feature allows assigning pointers with the address of the code corresponding to a particular C label.

For more information, see the GCC documentation: http://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html

Thanks to dividuum for finding the nice local scope label implementation.