Misc

Collaboration diagram for Misc:

Functions
void	sys_msleep (u32_t ms)
sys_thread_t	sys_thread_new (const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio)
void	sys_init (void)

Detailed Description

Function Documentation

sys_init()

void sys_init

(

void

)

sys_init() must be called before anything else. Initialize the sys_arch layer.

Definition at line 305 of file sys_arch.c.

{
    KeInitializeSpinLock(&ThreadListLock);
    InitializeListHead(&ThreadListHead);
 
    KeQuerySystemTime(&StartTime);
 
    KeInitializeEvent(&TerminationEvent, NotificationEvent, FALSE);
 
    ExInitializeNPagedLookasideList(&MessageLookasideList,
                                    NULL,
                                    NULL,
                                    0,
                                    sizeof(struct lwip_callback_msg),
                                    LWIP_MESSAGE_TAG,
                                    0);
 
    ExInitializeNPagedLookasideList(&QueueEntryLookasideList,
                                    NULL,
                                    NULL,
                                    0,
                                    sizeof(QUEUE_ENTRY),
                                    LWIP_QUEUE_TAG,
                                    0);
}

Referenced by lwip_init().

sys_msleep()

void sys_msleep

(

u32_t

ms

)

Sleep for specified number of ms

Sleep for some ms. Timeouts are NOT processed while sleeping.

Parameters

ms	number of milliseconds to sleep

Definition at line 135 of file sys.c.

{
  if (ms > 0) {
    sys_sem_t delaysem;
    err_t err = sys_sem_new(&delaysem, 0);
    if (err == ERR_OK) {
      sys_arch_sem_wait(&delaysem, ms);
      sys_sem_free(&delaysem);
    }
  }
}

sys_thread_new()

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

The only thread function: Starts a new thread named "name" with priority "prio" that will begin its execution in the function "thread()". The "arg" argument will be passed as an argument to the thread() function. The stack size to used for this thread is the "stacksize" parameter. The id of the new thread is returned. Both the id and the priority are system dependent. 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 275 of file sys_arch.c.

{
    thread_t Container;
    NTSTATUS Status;
 
    Container = ExAllocatePool(NonPagedPool, sizeof(*Container));
    if (!Container)
        return 0;
 
    Container->ThreadFunction = thread;
    Container->ThreadContext = arg;
 
    Status = PsCreateSystemThread(&Container->Handle,
                                  THREAD_ALL_ACCESS,
                                  NULL,
                                  NULL,
                                  NULL,
                                  LwipThreadMain,
                                  Container);
 
    if (!NT_SUCCESS(Status))
    {
        ExFreePool(Container);
        return 0;
    }
 
    return 0;
}

Referenced by slipif_init(), and tcpip_init().