#include "lwip/debug.h"
#include "lwip/sys.h"
#include "lwip/opt.h"
#include "lwip/stats.h"

Data Structures
struct	TimeoutlistPerThread

Macros
#define	SYS_ARCH_BLOCKING_TICKTIMEOUT ((portTickType)10000)

Functions
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. More...

u32_t	sys_arch_mbox_tryfetch (sys_mbox_t mbox, void *msg)
	Wait for a new message to arrive in the mbox. More...

sys_prot_t	sys_arch_protect (void)

u32_t	sys_arch_sem_wait (sys_sem_t *sem, u32_t timeout)
	Wait for a semaphore for the specified timeout. More...

void	sys_arch_unprotect (sys_prot_t pval)

void	sys_init (void)

void	sys_mbox_free (sys_mbox_t *mbox)
	Delete an mbox. More...

err_t	sys_mbox_new (sys_mbox_t *mBoxNew, int size)
	Create a new mbox of specified size. More...

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. More...

void	sys_mbox_set_invalid (sys_mbox_t *mbox)
	Set an mbox invalid so that sys_mbox_valid returns 0. More...

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. More...

int	sys_mbox_valid (sys_mbox_t *mbox)
	Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid. More...

void	sys_sem_free (sys_sem_t *sem)
	Delete a semaphore. More...

err_t	sys_sem_new (sys_sem_t *sem, u8_t count)
	Create a new semaphore. More...

void	sys_sem_set_invalid (sys_sem_t *sem)
	Set a semaphore invalid so that sys_sem_valid returns 0. More...

void	sys_sem_signal (sys_sem_t *sem)
	Signals a semaphore. More...

int	sys_sem_valid (sys_sem_t *sem)
	Check if a sempahore is valid/allocated: return 1 for valid, 0 for invalid. More...

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. More...

Variables
static u16_t	NbActiveThreads = 0

static struct TimeoutlistPerThread	Threads_TimeoutsList [SYS_THREAD_MAX]

volatile unsigned portLONG	ulCriticalNesting
	Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores should be used instead. More...

#define SYS_ARCH_BLOCKING_TICKTIMEOUT ((portTickType)10000)

Referenced by sys_arch_mbox_fetch(), sys_arch_sem_wait(), and sys_mbox_post().

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

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!

References ERR_MEM, NULL, pdFALSE, SYS_ARCH_BLOCKING_TICKTIMEOUT, SYS_ARCH_TIMEOUT, xQueueReceive, and xTaskGetTickCount().

Referenced by netconn_accept(), and netconn_recv_data().

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
timeout	maximum time (in milliseconds) to wait for a message

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

References NULL, pdFALSE, SYS_MBOX_EMPTY, and xQueueReceive.

sys_prot_t sys_arch_protect ( void )

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

References ERR_MEM, NULL, pdFALSE, SYS_ARCH_BLOCKING_TICKTIMEOUT, SYS_ARCH_TIMEOUT, xSemaphoreTake, and xTaskGetTickCount().

Referenced by do_write(), lwip_getsockopt(), lwip_select(), lwip_setsockopt(), sys_msleep(), and tcpip_apimsg().

void sys_arch_unprotect ( sys_prot_t pval )

void sys_init ( void )

References NbActiveThreads, TimeoutlistPerThread::pid, SYS_THREAD_MAX, and Threads_TimeoutsList.

Referenced by lwip_init().

void sys_mbox_free ( sys_mbox_t * mbox )

Delete an mbox.

Parameters

mbox	mbox to delete

References lwip_stats, stats_sys::mbox, NULL, stats_::sys, SYS_MBOX_NULL, stats_syselem::used, and vQueueDelete().

Referenced by accept_function(), do_listen(), netconn_drain(), and netconn_new_with_proto_and_callback().

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	(miminum) number of messages in this mbox

Returns: ERR_OK if successful, another err_t otherwise

References ERR_MEM, ERR_OK, lwip_stats, stats_syselem::max, stats_sys::mbox, NULL, stats_::sys, SYS_MBOX_NULL, stats_syselem::used, and xQueueCreate().

Referenced by do_listen(), netconn_alloc(), and tcpip_init().

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)

References NULL, pdTRUE, SYS_ARCH_BLOCKING_TICKTIMEOUT, and xQueueSend.

Referenced by tcpip_apimsg(), tcpip_callback_with_block(), tcpip_timeout(), and tcpip_untimeout().

void sys_mbox_set_invalid ( sys_mbox_t * mbox )

Set an mbox invalid so that sys_mbox_valid returns 0.

References NULL.

Referenced by accept_function(), do_listen(), netconn_alloc(), and netconn_drain().

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)

References ERR_MEM, ERR_OK, errQUEUE_FULL, NULL, and xQueueSend.

Referenced by accept_function(), err_tcp(), recv_tcp(), tcpip_callback_with_block(), and tcpip_input().

int sys_mbox_valid ( sys_mbox_t * mbox )

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

Referenced by accept_function(), do_listen(), err_tcp(), netconn_accept(), netconn_drain(), netconn_free(), netconn_new_with_proto_and_callback(), netconn_recv(), netconn_recv_data(), recv_tcp(), tcpip_apimsg(), tcpip_callback_with_block(), tcpip_input(), tcpip_timeout(), and tcpip_untimeout().

void sys_sem_free ( sys_sem_t * sem )

Delete a semaphore.

Parameters

sem	semaphore to delete

References lwip_stats, NULL, stats_sys::sem, stats_::sys, SYS_SEM_NULL, stats_syselem::used, and vQueueDelete().

Referenced by lwip_select(), netconn_alloc(), netconn_free(), netconn_new_with_proto_and_callback(), prvlwIPInit(), and sys_msleep().

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

References ERR_MEM, ERR_OK, lwip_stats, stats_syselem::max, NULL, stats_sys::sem, stats_::sys, SYS_SEM_NULL, stats_syselem::used, vSemaphoreCreateBinary, and xSemaphoreTake.

Referenced by lwip_select(), netconn_alloc(), prvlwIPInit(), and sys_msleep().

void sys_sem_set_invalid ( sys_sem_t * sem )

Set a semaphore invalid so that sys_sem_valid returns 0.

References NULL.

Referenced by netconn_free().

void sys_sem_signal ( sys_sem_t * sem )

Signals a semaphore.

Parameters

sem	the semaphore to signal

References NULL, and xSemaphoreGive.

Referenced by do_close(), do_close_internal(), do_connect(), do_connected(), do_delconn(), do_writemore(), err_tcp(), event_callback(), lwip_getsockopt_internal(), lwip_setsockopt_internal(), and tcpip_init_done().

int sys_sem_valid ( sys_sem_t * sem )

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

Referenced by do_delconn(), and netconn_new_with_proto_and_callback().

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.

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)

References NbActiveThreads, NULL, pdPASS, TimeoutlistPerThread::pid, SYS_ARCH_DECL_PROTECT(), SYS_ARCH_PROTECT(), SYS_ARCH_UNPROTECT(), Threads_TimeoutsList, and xTaskCreate.

Referenced by low_level_init(), portTASK_FUNCTION(), and tcpip_init().

u16_t NbActiveThreads = 0

static

Referenced by sys_init(), and sys_thread_new().

struct TimeoutlistPerThread Threads_TimeoutsList[SYS_THREAD_MAX]

static

Referenced by sys_init(), and sys_thread_new().

volatile unsigned portLONG ulCriticalNesting

Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores should be used instead.

Microchip® Advanced Software Framework

Data Structures

Macros

Functions

Variables