The ThisThread namespace allows controlling the current thread. More...

Functions
uint32_t	flags_clear (uint32_t flags)
	Clears the specified Thread Flags of the currently running thread. More...

uint32_t	flags_get ()
	Returns the Thread Flags currently set for the currently running thread. More...

uint32_t	flags_wait_all (uint32_t flags, bool clear=true)
	Wait for all of the specified Thread Flags to become signaled for the current thread. More...

uint32_t	flags_wait_any (uint32_t flags, bool clear=true)
	Wait for any of the specified Thread Flags to become signaled for the current thread. More...

uint32_t	flags_wait_all_for (uint32_t flags, uint32_t millisec, bool clear=true)
	Wait for all of the specified Thread Flags to become signaled for the current thread. More...

uint32_t	flags_wait_all_until (uint32_t flags, uint64_t millisec, bool clear=true)
	Wait for all of the specified Thread Flags to become signaled for the current thread. More...

uint32_t	flags_wait_any_for (uint32_t flags, uint32_t millisec, bool clear=true)
	Wait for any of the specified Thread Flags to become signaled for the current thread. More...

uint32_t	flags_wait_any_until (uint32_t flags, uint64_t millisec, bool clear=true)
	Wait for any of the specified Thread Flags to become signaled for the current thread. More...

void	sleep_for (uint32_t millisec)
	Sleep for a specified time period in millisec: More...

void	sleep_until (uint64_t millisec)
	Sleep until a specified time in millisec The specified time is according to Kernel::get_ms_count(). More...

void	yield ()
	Pass control to next equal-priority thread that is in state READY. More...

osThreadId_t	get_id ()
	Get the thread id of the current running thread. More...

const char *	get_name ()
	Get the thread name of the current running thread. More...

Detailed Description

The ThisThread namespace allows controlling the current thread.

Example:

#include "mbed.h"
#include "rtos.h"
Thread thread;
DigitalOut led1(LED1);
#define STOP_FLAG 1
// Blink function toggles the led in a long running loop
void blink(DigitalOut *led) {
    while (!ThisThread::flags_wait_any_for(STOP_FLAG, 1000)) {
        *led = !*led;
    }
}
// Spawns a thread to run blink for 5 seconds
int main() {
    thread.start(callback(blink, &led1));
    ThisThread::sleep_for(5000);
    thread.signal_set(STOP_FLAG);
    thread.join();
}

Function Documentation

uint32_t rtos::ThisThread::flags_clear ( uint32_t flags )

Clears the specified Thread Flags of the currently running thread.

Parameters

flags specifies the flags of the thread that should be cleared.

Returns: thread flags before clearing.

Note: You cannot call this function from ISR context.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_get ( )

Returns the Thread Flags currently set for the currently running thread.

Returns: current thread flags or 0 if not in a valid thread.

Note: You cannot call this function from ISR context.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_wait_all	(	uint32_t	flags,
		bool	clear = `true`
	)

Wait for all of the specified Thread Flags to become signaled for the current thread.

Parameters

flags	specifies the flags to wait for
clear	whether to clear the specified flags after waiting for them. (default: true)

Returns: actual thread flags before clearing, which will satisfy the wait

Note: You cannot call this function from ISR context.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_wait_all_for	(	uint32_t	flags,
		uint32_t	millisec,
		bool	clear = `true`
	)

Wait for all of the specified Thread Flags to become signaled for the current thread.

Parameters

flags	specifies the flags to wait for
millisec	timeout value.
clear	whether to clear the specified flags after waiting for them. (default: true)

Returns: actual thread flags before clearing, which may not satisfy the wait

Note: You cannot call this function from ISR context.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_wait_all_until	(	uint32_t	flags,
		uint64_t	millisec,
		bool	clear = `true`
	)

Wait for all of the specified Thread Flags to become signaled for the current thread.

Parameters

flags	specifies the flags to wait for
millisec	absolute timeout time, referenced to Kernel::get_ms_count()
clear	whether to clear the specified flags after waiting for them. (default: true)

Returns: actual thread flags before clearing, which may not satisfy the wait

Note: You cannot call this function from ISR context.; the underlying RTOS may have a limit to the maximum wait time due to internal 32-bit computations, but this is guaranteed to work if the wait is <= 0x7fffffff milliseconds (~24 days). If the limit is exceeded, the wait will time out earlier than specified.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_wait_any	(	uint32_t	flags,
		bool	clear = `true`
	)

Wait for any of the specified Thread Flags to become signaled for the current thread.

Parameters

flags	specifies the flags to wait for
clear	whether to clear the specified flags after waiting for them. (default: true)

Returns: actual thread flags before clearing, which will satisfy the wait

Note: You cannot call this function from ISR context.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_wait_any_for	(	uint32_t	flags,
		uint32_t	millisec,
		bool	clear = `true`
	)

Wait for any of the specified Thread Flags to become signaled for the current thread.

Parameters

flags	specifies the flags to wait for
millisec	timeout value.
clear	whether to clear the specified flags after waiting for them. (default: true)

Returns: actual thread flags before clearing, which may not satisfy the wait

Note: You cannot call this function from ISR context.

See also: Thread::flags_set

uint32_t rtos::ThisThread::flags_wait_any_until	(	uint32_t	flags,
		uint64_t	millisec,
		bool	clear = `true`
	)

Wait for any of the specified Thread Flags to become signaled for the current thread.

Parameters

flags	specifies the flags to wait for
millisec	absolute timeout time, referenced to Kernel::get_ms_count()
clear	whether to clear the specified flags after waiting for them. (default: true)

Returns: actual thread flags before clearing, which may not satisfy the wait

Note: You cannot call this function from ISR context.; the underlying RTOS may have a limit to the maximum wait time due to internal 32-bit computations, but this is guaranteed to work if the wait is <= 0x7fffffff milliseconds (~24 days). If the limit is exceeded, the wait will time out earlier than specified.

See also: Thread::flags_set

osThreadId_t rtos::ThisThread::get_id ( )

Get the thread id of the current running thread.

Returns: thread ID for reference by other functions or NULL in case of error or in ISR context.

Note: You may call this function from ISR context.

const char* rtos::ThisThread::get_name ( )

Get the thread name of the current running thread.

Returns: thread name pointer or NULL if thread has no name or in case of error.

Note: You cannot call this function from ISR context.

void rtos::ThisThread::sleep_for ( uint32_t millisec )

Sleep for a specified time period in millisec:

Parameters

millisec time delay value

Note: You cannot call this function from ISR context.

void rtos::ThisThread::sleep_until ( uint64_t millisec )

Sleep until a specified time in millisec The specified time is according to Kernel::get_ms_count().

Parameters

millisec absolute time in millisec

Note: You cannot call this function from ISR context.; if millisec is equal to or lower than the current tick count, this returns immediately.

void rtos::ThisThread::yield ( )

Pass control to next equal-priority thread that is in state READY.

(Higher-priority READY threads would prevent us from running; this will not enable lower-priority threads to run, as we remain READY).

Note: You cannot call this function from ISR context.

Functions

Detailed Description

Function Documentation

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