threads_arch.c File Reference

#include "modules/core/threads.h"
#include "modules/core/threads_arch.h"
#include "stdbool.h"

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Functions
int	pprz_mtx_init (pprz_mutex_t *mtx)
int	pprz_mtx_lock (pprz_mutex_t *mtx)
int	pprz_mtx_trylock (pprz_mutex_t *mtx)
	Performs a nonblocking lock on the mutex.
int	pprz_mtx_unlock (pprz_mutex_t *mtx)
void	pprz_bsem_init (pprz_bsem_t *bsem, bool taken)
void	pprz_bsem_wait (pprz_bsem_t *bsem)
int	pprz_bsem_wait_timeout (pprz_bsem_t *bsem, float timeout)
	Wait on semaphore no more than timeout.
void	pprz_bsem_signal (pprz_bsem_t *bsem)
int	pprz_thread_create (pprz_thread_t *thread, size_t size, const char *name, uint8_t prio, void(*pf)(void *), void *arg)
	Creates a new thread whose stack is dynamically allocated.
void	pprz_thread_exit (void *retval)
	Exit the current thread.
int	pprz_thread_join (pprz_thread_t *thread, void **retval)
	Wait for the thread to terminate.
int	pprz_thread_tryjoin (pprz_thread_t *thread, void **retval)
	Performs a nonblocking join with the thread.

Function Documentation

pprz_bsem_init()

void pprz_bsem_init	(	pprz_bsem_t *	bsem,
		bool	taken
	)

Definition at line 39 of file threads_arch.c.

References pprzBSem::bsem, bsem, and foo.

Referenced by amt22_init(), humid_sht_init_i2c(), i2c_chibios_submit(), i2c_linux_submit(), spi_submit(), thd_test_init(), and uavcanInitIface().

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pprz_bsem_signal()

void pprz_bsem_signal

(

pprz_bsem_t *

bsem

)

Definition at line 57 of file threads_arch.c.

References pprzBSem::bsem, bsem, and foo.

Referenced by amt22_periodic(), handle_spi_thd(), humid_sht_thd(), i2c_thread(), thd_test_periodic(), and uavcan_broadcast().

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pprz_bsem_wait()

void pprz_bsem_wait

(

pprz_bsem_t *

bsem

)

Definition at line 43 of file threads_arch.c.

References pprzBSem::bsem, bsem, and foo.

Referenced by amt22_thd(), test_thd(), and uavcan_tx().

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pprz_bsem_wait_timeout()

int pprz_bsem_wait_timeout	(	pprz_bsem_t *	bsem,
		float	timeout
	)

Wait on semaphore no more than timeout.

Parameters

timeout

in seconds

Returns

0 on success

Definition at line 47 of file threads_arch.c.

References pprzBSem::bsem, bsem, foo, and timeout.

Referenced by humid_sht_periodic_i2c(), i2c_blocking_submit(), and spi_blocking_transceive().

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pprz_mtx_init()

int pprz_mtx_init

(

pprz_mutex_t *

mtx

)

Definition at line 18 of file threads_arch.c.

References foo, pprzMutex::mtx, and mtx.

Referenced by amt22_init(), copilot_init(), gec_transport_init(), slcan_init(), syslink_dl_init(), thd_test_init(), and uavcanInitIface().

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pprz_mtx_lock()

int pprz_mtx_lock

(

pprz_mutex_t *

mtx

)

Definition at line 23 of file threads_arch.c.

References foo, pprzMutex::mtx, and mtx.

Referenced by amt22_get_position(), amt22_get_turns(), amt22_read(), can_frame_cb(), copilot_parse_cam_payload_dl(), copilot_parse_cam_snapshot_dl(), copilot_parse_copilot_status_dl(), copilot_periodic(), handle_raw(), slcan_can_rx_cb(), syslink_check_free_space(), syslink_send_message(), test_thd(), uavcan_broadcast(), and uavcan_tx().

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pprz_mtx_trylock()

int pprz_mtx_trylock

(

pprz_mutex_t *

mtx

)

Performs a nonblocking lock on the mutex.

Returns

0 if successful

Definition at line 28 of file threads_arch.c.

References foo, pprzMutex::mtx, and mtx.

Referenced by thd_test_periodic(), and thd_test_syracuse_restart().

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pprz_mtx_unlock()

int pprz_mtx_unlock

(

pprz_mutex_t *

mtx

)

Definition at line 32 of file threads_arch.c.

References foo, pprzMutex::mtx, and mtx.

Referenced by amt22_get_position(), amt22_get_turns(), amt22_read(), can_frame_cb(), copilot_parse_cam_payload_dl(), copilot_parse_cam_snapshot_dl(), copilot_parse_copilot_status_dl(), copilot_periodic(), handle_raw(), slcan_can_rx_cb(), test_thd(), thd_test_periodic(), thd_test_syracuse_restart(), uavcan_broadcast(), and uavcan_tx().

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pprz_thread_create()

int pprz_thread_create	(	pprz_thread_t *	thread,
		size_t	size,
		const char *	name,
		uint8_t	prio,
		void(*)(void *)	func,
		void *	arg
	)

Creates a new thread whose stack is dynamically allocated.

Parameters

[in]	size	size of the stack. Unused on linux at the moment.
[in]	prio	the priority level for the new thread. Unused on linux at the moment. NORMALPRIO
[in]	pf	the thread function
[in]	arg	an argument passed to the thread function. It can be NULL.
[out]	thread	pointer to a pprz_thread_t that will be writen with the handle to the thread

Returns

Return 0 on success, or a platform dependant error code.

@api

Definition at line 62 of file threads_arch.c.

References foo.

Referenced by amt22_init(), humid_sht_init_i2c(), thd_test_init(), thd_test_syracuse_restart(), and uavcanInitIface().

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pprz_thread_exit()

void pprz_thread_exit

(

void *

retval

)

Exit the current thread.

Parameters

[out]

retval

The thread's return value

Definition at line 70 of file threads_arch.c.

References foo.

Referenced by test_thd().

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pprz_thread_join()

int pprz_thread_join	(	pprz_thread_t *	thread,
		void **	retval
	)

Wait for the thread to terminate.

Note

Warning ! This is a blocking function, do not use it in the main AP thread !

Parameters

[in]	thread	The thread to be joined
[out]	retval	The thread's return value will be written to the variable pointed by retval

Definition at line 75 of file threads_arch.c.

References foo.

Referenced by pprz_thread_tryjoin().

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pprz_thread_tryjoin()

int pprz_thread_tryjoin	(	pprz_thread_t *	thread,
		void **	retval
	)

Performs a nonblocking join with the thread.

Parameters

[in]	thread	The thread to be joined
[out]	retval	The thread's return value will be written to the variable pointed by retval. must not be used if this fuction did not returned 0.

Returns

0 if the thread successfully joined.

Definition at line 81 of file threads_arch.c.

References foo, and pprz_thread_join().

Referenced by thd_test_periodic().

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