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Diffstat (limited to 'include/bthread.h')
| -rw-r--r-- | include/bthread.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/bthread.h b/include/bthread.h new file mode 100644 index 0000000000..e3871fb115 --- /dev/null +++ b/include/bthread.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2021 Ahmad Fatoum, Pengutronix + */ + +#ifndef __BTHREAD_H_ +#define __BTHREAD_H_ + +#include <linux/stddef.h> + +struct bthread; + +extern struct bthread *current; + +struct bthread *bthread_create(int (*threadfn)(void *), void *data, const char *namefmt, ...); +void bthread_free(struct bthread *bthread); + +void bthread_schedule(struct bthread *); +void bthread_wake(struct bthread *bthread); +void bthread_suspend(struct bthread *bthread); +int bthread_should_stop(void); +int bthread_stop(struct bthread *bthread); +void bthread_info(void); +const char *bthread_name(struct bthread *bthread); +bool bthread_is_main(struct bthread *bthread); + +/** + * bthread_run - create and wake a thread. + * @threadfn: the function to run for coming reschedule cycles + * @data: data ptr for @threadfn. + * @namefmt: printf-style name for the thread. + * + * Description: Convenient wrapper for bthread_create() followed by + * bthread_wakeup(). Returns the bthread or NULL + */ +#define bthread_run(threadfn, data, namefmt, ...) \ +({ \ + struct bthread *__b \ + = bthread_create(threadfn, data, namefmt, ## __VA_ARGS__); \ + if (__b) \ + bthread_wake(__b); \ + __b; \ +}) + +#ifdef CONFIG_BTHREAD +void bthread_reschedule(void); +#else +static inline void bthread_reschedule(void) +{ +} +#endif + +#endif |