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#ifndef STP_H
#define STP_H
/*
* QuickThreads -- Threads-building toolkit.
* Copyright (c) 1993 by David Keppel
*
* Permission to use, copy, modify and distribute this software and
* its documentation for any purpose and without fee is hereby
* granted, provided that the above copyright notice and this notice
* appear in all copies. This software is provided as a
* proof-of-concept and for demonstration purposes; there is no
* representation about the suitability of this software for any
* purpose.
*/
typedef struct stp_t stp_t;
/* Each thread starts by calling a user-supplied function of this
type. */
typedef void (stp_userf_t)(void *p0);
/* Call this before any other primitives. */
extern void stp_init();
/* When one or more threads are created by the main thread,
the system goes multithread when this is called. It is done
(no more runable threads) when this returns. */
extern void stp_start (void);
/* Create a thread and make it runable. When the thread starts
running it will call `f' with arguments `p0' and `p1'. */
extern void stp_create (stp_userf_t *f, void *p0);
/* The current thread stops running but stays runable.
It is an error to call `stp_yield' before `stp_start'
is called or after `stp_start' returns. */
extern void stp_yield (void);
/* Like `stp_yield' but the thread is discarded. Any intermediate
state is lost. The thread can also terminate by simply
returning. */
extern void stp_abort (void);
#endif /* ndef STP_H */
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