RTOS abstraction layer (POSIX Threads) More...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/time.h>
#include "os_port.h"
#include "os_port_posix.h"
#include "debug.h"

Macros
#define	TRACE_LEVEL TRACE_LEVEL_OFF

Typedefs
typedef void (	PthreadTaskCode) (void *param)

Functions
void	osInitKernel (void)
	Kernel initialization. More...

void	osStartKernel (void)
	Start kernel. More...

OsTaskId	osCreateTask (const char_t name, OsTaskCode taskCode, void arg, const OsTaskParameters *params)
	Create a task. More...

void	osDeleteTask (OsTaskId taskId)
	Delete a task. More...

void	osDelayTask (systime_t delay)
	Delay routine. More...

void	osSwitchTask (void)
	Yield control to the next task. More...

void	osSuspendAllTasks (void)
	Suspend scheduler activity. More...

void	osResumeAllTasks (void)
	Resume scheduler activity. More...

bool_t	osCreateEvent (OsEvent *event)
	Create an event object. More...

void	osDeleteEvent (OsEvent *event)
	Delete an event object. More...

void	osSetEvent (OsEvent *event)
	Set the specified event object to the signaled state. More...

void	osResetEvent (OsEvent *event)
	Set the specified event object to the nonsignaled state. More...

bool_t	osWaitForEvent (OsEvent *event, systime_t timeout)
	Wait until the specified event is in the signaled state. More...

bool_t	osSetEventFromIsr (OsEvent *event)
	Set an event object to the signaled state from an interrupt service routine. More...

bool_t	osCreateSemaphore (OsSemaphore *semaphore, uint_t count)
	Create a semaphore object. More...

void	osDeleteSemaphore (OsSemaphore *semaphore)
	Delete a semaphore object. More...

bool_t	osWaitForSemaphore (OsSemaphore *semaphore, systime_t timeout)
	Wait for the specified semaphore to be available. More...

void	osReleaseSemaphore (OsSemaphore *semaphore)
	Release the specified semaphore object. More...

bool_t	osCreateMutex (OsMutex *mutex)
	Create a mutex object. More...

void	osDeleteMutex (OsMutex *mutex)
	Delete a mutex object. More...

void	osAcquireMutex (OsMutex *mutex)
	Acquire ownership of the specified mutex object. More...

void	osReleaseMutex (OsMutex *mutex)
	Release ownership of the specified mutex object. More...

systime_t	osGetSystemTime (void)
	Retrieve system time. More...

__weak_func void *	osAllocMem (size_t size)
	Allocate a memory block. More...

__weak_func void	osFreeMem (void *p)
	Release a previously allocated memory block. More...

Variables
const OsTaskParameters	OS_TASK_DEFAULT_PARAMS

Detailed Description

RTOS abstraction layer (POSIX Threads)

License

SPDX-License-Identifier: GPL-2.0-or-later

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

Author: Oryx Embedded SARL (www.oryx-embedded.com)

Version: 2.4.4

Definition in file os_port_posix.c.

Macro Definition Documentation

◆ TRACE_LEVEL

#define TRACE_LEVEL TRACE_LEVEL_OFF

Definition at line 30 of file os_port_posix.c.

Typedef Documentation

◆ PthreadTaskCode

typedef void*(* PthreadTaskCode) (void *param)

Definition at line 42 of file os_port_posix.c.

Function Documentation

◆ osAcquireMutex()

void osAcquireMutex ( OsMutex * mutex )

Acquire ownership of the specified mutex object.

Parameters

[in] mutex Pointer to the mutex object

Definition at line 473 of file os_port_posix.c.

◆ osAllocMem()

__weak_func void* osAllocMem ( size_t size )

Allocate a memory block.

Parameters

[in] size Bytes to allocate

Returns: A pointer to the allocated memory block or NULL if there is insufficient memory available

Definition at line 516 of file os_port_posix.c.

◆ osCreateEvent()

bool_t osCreateEvent ( OsEvent * event )

Create an event object.

Parameters

[in] event Pointer to the event object

Returns: The function returns TRUE if the event object was successfully created. Otherwise, FALSE is returned

Definition at line 167 of file os_port_posix.c.

◆ osCreateMutex()

bool_t osCreateMutex ( OsMutex * mutex )

Create a mutex object.

Parameters

[in] mutex Pointer to the mutex object

Returns: The function returns TRUE if the mutex was successfully created. Otherwise, FALSE is returned

Definition at line 437 of file os_port_posix.c.

◆ osCreateSemaphore()

bool_t osCreateSemaphore	(	OsSemaphore *	semaphore,
		uint_t	count
	)

Create a semaphore object.

Parameters

[in]	semaphore	Pointer to the semaphore object
[in]	count	The maximum count for the semaphore object. This value must be greater than zero

Returns: The function returns TRUE if the semaphore was successfully created. Otherwise, FALSE is returned

Definition at line 331 of file os_port_posix.c.

◆ osCreateTask()

OsTaskId osCreateTask	(	const char_t *	name,
		OsTaskCode	taskCode,
		void *	arg,
		const OsTaskParameters *	params
	)

Create a task.

Parameters

[in]	name	NULL-terminated string identifying the task
[in]	taskCode	Pointer to the task entry function
[in]	arg	Argument passed to the task function
[in]	params	Task parameters

Returns: Task identifier referencing the newly created task

Definition at line 81 of file os_port_posix.c.

◆ osDelayTask()

void osDelayTask ( systime_t delay )

Delay routine.

Parameters

[in] delay Amount of time for which the calling task should block

Definition at line 123 of file os_port_posix.c.

◆ osDeleteEvent()

void osDeleteEvent ( OsEvent * event )

Delete an event object.

Parameters

[in] event Pointer to the event object

Definition at line 191 of file os_port_posix.c.

◆ osDeleteMutex()

void osDeleteMutex ( OsMutex * mutex )

Delete a mutex object.

Parameters

[in] mutex Pointer to the mutex object

Definition at line 461 of file os_port_posix.c.

◆ osDeleteSemaphore()

void osDeleteSemaphore ( OsSemaphore * semaphore )

Delete a semaphore object.

Parameters

[in] semaphore Pointer to the semaphore object

Definition at line 355 of file os_port_posix.c.

◆ osDeleteTask()

void osDeleteTask ( OsTaskId taskId )

Delete a task.

Parameters

[in] taskId Task identifier referencing the task to be deleted

Definition at line 107 of file os_port_posix.c.

◆ osFreeMem()

__weak_func void osFreeMem ( void * p )

Release a previously allocated memory block.

Parameters

[in] p Previously allocated memory block to be freed

Definition at line 528 of file os_port_posix.c.

◆ osGetSystemTime()

systime_t osGetSystemTime ( void )

Retrieve system time.

Returns: Number of milliseconds elapsed since the system was last started

Definition at line 497 of file os_port_posix.c.

◆ osInitKernel()

void osInitKernel ( void )

Kernel initialization.

Definition at line 56 of file os_port_posix.c.

◆ osReleaseMutex()

void osReleaseMutex ( OsMutex * mutex )

Release ownership of the specified mutex object.

Parameters

[in] mutex Pointer to the mutex object

Definition at line 485 of file os_port_posix.c.

◆ osReleaseSemaphore()

void osReleaseSemaphore ( OsSemaphore * semaphore )

Release the specified semaphore object.

Parameters

[in] semaphore Pointer to the semaphore object

Definition at line 423 of file os_port_posix.c.

◆ osResetEvent()

void osResetEvent ( OsEvent * event )

Set the specified event object to the nonsignaled state.

Parameters

[in] event Pointer to the event object

Definition at line 225 of file os_port_posix.c.

◆ osResumeAllTasks()

void osResumeAllTasks ( void )

Resume scheduler activity.

Definition at line 154 of file os_port_posix.c.

◆ osSetEvent()

void osSetEvent ( OsEvent * event )

Set the specified event object to the signaled state.

Parameters

[in] event Pointer to the event object

Definition at line 203 of file os_port_posix.c.

◆ osSetEventFromIsr()

bool_t osSetEventFromIsr ( OsEvent * event )

Set an event object to the signaled state from an interrupt service routine.

Parameters

[in] event Pointer to the event object

Returns: TRUE if setting the event to signaled state caused a task to unblock and the unblocked task has a priority higher than the currently running task

Definition at line 315 of file os_port_posix.c.

◆ osStartKernel()

void osStartKernel ( void )

Start kernel.

Definition at line 66 of file os_port_posix.c.

◆ osSuspendAllTasks()

void osSuspendAllTasks ( void )

Suspend scheduler activity.

Definition at line 144 of file os_port_posix.c.

◆ osSwitchTask()

void osSwitchTask ( void )

Yield control to the next task.

Definition at line 134 of file os_port_posix.c.

◆ osWaitForEvent()

bool_t osWaitForEvent	(	OsEvent *	event,
		systime_t	timeout
	)

Wait until the specified event is in the signaled state.

Parameters

[in]	event	Pointer to the event object
[in]	timeout	Timeout interval

Returns: The function returns TRUE if the state of the specified object is signaled. FALSE is returned if the timeout interval elapsed

Definition at line 248 of file os_port_posix.c.

◆ osWaitForSemaphore()

bool_t osWaitForSemaphore	(	OsSemaphore *	semaphore,
		systime_t	timeout
	)

Wait for the specified semaphore to be available.

Parameters

[in]	semaphore	Pointer to the semaphore object
[in]	timeout	Timeout interval

Returns: The function returns TRUE if the semaphore is available. FALSE is returned if the timeout interval elapsed

Definition at line 370 of file os_port_posix.c.

Variable Documentation

◆ OS_TASK_DEFAULT_PARAMS

const OsTaskParameters OS_TASK_DEFAULT_PARAMS

Initial value:

=
{
   0, 
   0  
}

Definition at line 45 of file os_port_posix.c.

Macros

Typedefs

Functions

Variables

Detailed Description

License

Macro Definition Documentation

◆ TRACE_LEVEL

Typedef Documentation

◆ PthreadTaskCode

Function Documentation

◆ osAcquireMutex()

◆ osAllocMem()

◆ osCreateEvent()

◆ osCreateMutex()

◆ osCreateSemaphore()

◆ osCreateTask()

◆ osDelayTask()

◆ osDeleteEvent()

◆ osDeleteMutex()

◆ osDeleteSemaphore()

◆ osDeleteTask()

◆ osFreeMem()

◆ osGetSystemTime()

◆ osInitKernel()

◆ osReleaseMutex()

◆ osReleaseSemaphore()

◆ osResetEvent()

◆ osResumeAllTasks()

◆ osSetEvent()

◆ osSetEventFromIsr()

◆ osStartKernel()

◆ osSuspendAllTasks()

◆ osSwitchTask()

◆ osWaitForEvent()

◆ osWaitForSemaphore()

Variable Documentation

◆ OS_TASK_DEFAULT_PARAMS