#include "lwip/debug.h"
#include "lwip/def.h"
#include "lwip/sys.h"
#include "lwip/mem.h"
#include "lwip/stats.h"
#include "FreeRTOS.h"
#include "task.h"

Macros
#define	SYS_THREAD_MAX 10

Functions
err_t	sys_mbox_new (sys_mbox_t *mbox, int size)

void	sys_mbox_free (sys_mbox_t *mbox)

void	sys_mbox_post (sys_mbox_t mbox, void data)

err_t	sys_mbox_trypost (sys_mbox_t mbox, void msg)

u32_t	sys_arch_mbox_fetch (sys_mbox_t mbox, void *msg, u32_t timeout)

u32_t	sys_arch_mbox_tryfetch (sys_mbox_t mbox, void *msg)

int	sys_mbox_valid (sys_mbox_t *mbox)

void	sys_mbox_set_invalid (sys_mbox_t *mbox)

err_t	sys_sem_new (sys_sem_t *sem, u8_t count)

u32_t	sys_arch_sem_wait (sys_sem_t *sem, u32_t timeout)

void	sys_sem_signal (sys_sem_t *sem)

void	sys_sem_free (sys_sem_t *sem)

int	sys_sem_valid (sys_sem_t *sem)

void	sys_sem_set_invalid (sys_sem_t *sem)

void	sys_init (void)

err_t	sys_mutex_new (sys_mutex_t *mutex)

void	sys_mutex_free (sys_mutex_t *mutex)

void	sys_mutex_lock (sys_mutex_t *mutex)

void	sys_mutex_unlock (sys_mutex_t *mutex)

sys_thread_t	sys_thread_new (const char name, lwip_thread_fn thread, void arg, int stacksize, int prio)

sys_prot_t	sys_arch_protect (void)

void	sys_arch_unprotect (sys_prot_t pval)

void	sys_assert (const char *msg)

Macro Definition Documentation

#define SYS_THREAD_MAX 10

Definition at line 45 of file sys_arch.c.

Function Documentation

u32_t sys_arch_mbox_fetch	(	sys_mbox_t *	mbox,
		void **	msg,
		u32_t	timeout
	)

Wait for a new message to arrive in the mbox

Parameters

mbox	mbox to get a message from
msg	pointer where the message is stored
timeout	maximum time (in milliseconds) to wait for a message (0 = wait forever)

Returns: time (in milliseconds) waited for a message, may be 0 if not waited or SYS_ARCH_TIMEOUT on timeout The returned time has to be accurate to prevent timer jitter!

Definition at line 143 of file sys_arch.c.

u32_t sys_arch_mbox_tryfetch	(	sys_mbox_t *	mbox,
		void **	msg
	)

Wait for a new message to arrive in the mbox

Parameters

mbox	mbox to get a message from
msg	pointer where the message is stored

Returns: 0 (milliseconds) if a message has been received or SYS_MBOX_EMPTY if the mailbox is empty

Definition at line 186 of file sys_arch.c.

sys_prot_t sys_arch_protect ( void )

Definition at line 432 of file sys_arch.c.

u32_t sys_arch_sem_wait	(	sys_sem_t *	sem,
		u32_t	timeout
	)

Wait for a semaphore for the specified timeout

Parameters

sem	the semaphore to wait for
timeout	timeout in milliseconds to wait (0 = wait forever)

Returns: time (in milliseconds) waited for the semaphore or SYS_ARCH_TIMEOUT on timeout

Definition at line 263 of file sys_arch.c.

void sys_arch_unprotect ( sys_prot_t pval )

Definition at line 444 of file sys_arch.c.

void sys_assert ( const char * msg )

Definition at line 453 of file sys_arch.c.

void sys_init ( void )

Definition at line 328 of file sys_arch.c.

void sys_mbox_free ( sys_mbox_t * mbox )

Delete an mbox

Parameters

mbox	mbox to delete

Definition at line 76 of file sys_arch.c.

err_t sys_mbox_new	(	sys_mbox_t *	mbox,
		int	size
	)

Create a new mbox of specified size

Parameters

mbox	pointer to the mbox to create
size	(minimum) number of messages in this mbox

Returns: ERR_OK if successful, another err_t otherwise

Definition at line 52 of file sys_arch.c.

void sys_mbox_post	(	sys_mbox_t *	mbox,
		void *	msg
	)

Post a message to an mbox - may not fail -> blocks if full, only used from tasks not from ISR

Parameters

mbox	mbox to posts the message
msg	message to post (ATTENTION: can be NULL)

Definition at line 98 of file sys_arch.c.

void sys_mbox_set_invalid ( sys_mbox_t * mbox )

Set an mbox invalid so that sys_mbox_valid returns 0

Definition at line 213 of file sys_arch.c.

err_t sys_mbox_trypost	(	sys_mbox_t *	mbox,
		void *	msg
	)

Try to post a message to an mbox - may fail if full or ISR

Parameters

mbox	mbox to posts the message
msg	message to post (ATTENTION: can be NULL)

Definition at line 106 of file sys_arch.c.

int sys_mbox_valid ( sys_mbox_t * mbox )

Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid

Definition at line 205 of file sys_arch.c.

void sys_mutex_free ( sys_mutex_t * mutex )

Delete a semaphore

Parameters

mutex the mutex to delete

Definition at line 360 of file sys_arch.c.

void sys_mutex_lock ( sys_mutex_t * mutex )

Lock a mutex

Parameters

mutex the mutex to lock

Definition at line 370 of file sys_arch.c.

err_t sys_mutex_new ( sys_mutex_t * mutex )

Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores should be used instead Create a new mutex

Parameters

mutex pointer to the mutex to create

Returns: a new mutex

Definition at line 339 of file sys_arch.c.

void sys_mutex_unlock ( sys_mutex_t * mutex )

Unlock a mutex

Parameters

mutex the mutex to unlock

Definition at line 377 of file sys_arch.c.

void sys_sem_free ( sys_sem_t * sem )

Delete a semaphore

Parameters

sem	semaphore to delete

Definition at line 303 of file sys_arch.c.

err_t sys_sem_new	(	sys_sem_t *	sem,
		u8_t	count
	)

Create a new semaphore

Parameters

sem	pointer to the semaphore to create
count	initial count of the semaphore

Returns: ERR_OK if successful, another err_t otherwise

Definition at line 221 of file sys_arch.c.

void sys_sem_set_invalid ( sys_sem_t * sem )

Set a semaphore invalid so that sys_sem_valid returns 0

Definition at line 321 of file sys_arch.c.

void sys_sem_signal ( sys_sem_t * sem )

Signals a semaphore

Parameters

sem	the semaphore to signal

Definition at line 296 of file sys_arch.c.

int sys_sem_valid ( sys_sem_t * sem )

Check if a semaphore is valid/allocated: return 1 for valid, 0 for invalid

Definition at line 312 of file sys_arch.c.

sys_thread_t sys_thread_new	(	const char *	name,
		lwip_thread_fn	thread,
		void *	arg,
		int	stacksize,
		int	prio
	)

The only thread function: Creates a new thread ATTENTION: although this function returns a value, it MUST NOT FAIL (ports have to assert this!)

Parameters

name	human-readable name for the thread (used for debugging purposes)
thread	thread-function
arg	parameter passed to 'thread'
stacksize	stack size in bytes for the new thread (may be ignored by ports)
prio	priority of the new thread (may be ignored by ports)

Definition at line 391 of file sys_arch.c.

Macros

Functions

Macro Definition Documentation

Function Documentation