lwp.c File Reference

#include <stdlib.h>
#include <errno.h>
#include "asm.h"
#include "processor.h"
#include "lwp_threadq.h"
#include "lwp_threads.h"
#include "lwp_wkspace.h"
#include "lwp_objmgr.h"
#include "lwp_config.h"
#include "lwp.h"

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Classes
struct	_tqueue_st

Macros
#define	LWP_OBJTYPE_THREAD   1
#define	LWP_OBJTYPE_TQUEUE   2
#define	LWP_CHECK_THREAD(hndl)
#define	LWP_CHECK_TQUEUE(hndl)

Typedefs
typedef struct _tqueue_st	tqueue_st

Functions
int	__crtmain ()
static __inline__ u32	__lwp_priotocore (u32 prio)
static __inline__ lwp_cntrl *	__lwp_cntrl_open (lwp_t thr_id)
static __inline__ tqueue_st *	__lwp_tqueue_open (lwpq_t tqueue)
static lwp_cntrl *	__lwp_cntrl_allocate ()
static tqueue_st *	__lwp_tqueue_allocate ()
static __inline__ void	__lwp_cntrl_free (lwp_cntrl *thethread)
static __inline__ void	__lwp_tqueue_free (tqueue_st *tq)
static void *	idle_func (void *arg)
void	__lwp_sysinit ()
BOOL	__lwp_thread_isalive (lwp_t thr_id)
lwp_t	__lwp_thread_currentid ()
BOOL	__lwp_thread_exists (lwp_t thr_id)
frame_context *	__lwp_thread_context (lwp_t thr_id)
s32	LWP_CreateThread (lwp_t *thethread, void *(*entry)(void *), void *arg, void *stackbase, u32 stack_size, u8 prio)
s32	LWP_SuspendThread (lwp_t thethread)
	Suspend the given thread. More...
s32	LWP_ResumeThread (lwp_t thethread)
	Resume the given thread. More...
lwp_t	LWP_GetSelf ()
	Return the handle to the current thread. More...
void	LWP_SetThreadPriority (lwp_t thethread, u32 prio)
	Set the priority of the given thread. More...
void	LWP_YieldThread ()
	Yield the current thread to another one with higher priority or if not running at the same priority which state is runnable. More...
void	LWP_Reschedule (u32 prio)
	Reschedule all threads running at the given priority. More...
BOOL	LWP_ThreadIsSuspended (lwp_t thethread)
	Test whether the given thread is suspended or not. More...
s32	LWP_JoinThread (lwp_t thethread, void **value_ptr)
	Join the given thread. More...
s32	LWP_InitQueue (lwpq_t *thequeue)
	Initialize the thread synchronization queue. More...
void	LWP_CloseQueue (lwpq_t thequeue)
	Close the thread synchronization queue and releas the handle. More...
s32	LWP_ThreadSleep (lwpq_t thequeue)
	Pushes the current thread onto the given thread synchronization queue and sets the thread state to blocked. More...
void	LWP_ThreadBroadcast (lwpq_t thequeue)
	Removes all blocked threads from the thread synchronization queue and sets them back to running state. More...
void	LWP_ThreadSignal (lwpq_t thequeue)
	Signals one thread to be revmoved from the thread synchronization queue and sets it back to running state. More...

Variables
lwp_objinfo	_lwp_thr_objects
lwp_objinfo	_lwp_tqueue_objects
u8	__stack_addr []
u8	__stack_end []

Macro Definition Documentation

LWP_CHECK_THREAD

#define LWP_CHECK_THREAD

(

hndl

)

Value:

{                                   \
    if(((hndl)==LWP_THREAD_NULL) || (LWP_OBJTYPE(hndl)!=LWP_OBJTYPE_THREAD))    \
        return NULL;                \
}

LWP_CHECK_TQUEUE

#define LWP_CHECK_TQUEUE

(

hndl

)

Value:

{                                   \
    if(((hndl)==LWP_TQUEUE_NULL) || (LWP_OBJTYPE(hndl)!=LWP_OBJTYPE_TQUEUE))    \
        return NULL;                \
}

LWP_OBJTYPE_THREAD

#define LWP_OBJTYPE_THREAD   1

LWP_OBJTYPE_TQUEUE

#define LWP_OBJTYPE_TQUEUE   2

Typedef Documentation

tqueue_st

typedef struct _tqueue_st tqueue_st

Function Documentation

__crtmain()

int __crtmain

(

)

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__lwp_cntrl_allocate()

static lwp_cntrl* __lwp_cntrl_allocate ( )

static

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__lwp_cntrl_free()

static __inline__ void __lwp_cntrl_free ( lwp_cntrl *  thethread )

static

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__lwp_cntrl_open()

static __inline__ lwp_cntrl* __lwp_cntrl_open ( lwp_t  thr_id )

static

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__lwp_priotocore()

static __inline__ u32 __lwp_priotocore ( u32  prio )

static

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__lwp_sysinit()

void __lwp_sysinit

(

void

)

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__lwp_thread_context()

frame_context* __lwp_thread_context

(

lwp_t

thr_id

)

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__lwp_thread_currentid()

lwp_t __lwp_thread_currentid

(

)

__lwp_thread_exists()

BOOL __lwp_thread_exists

(

lwp_t

thr_id

)

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__lwp_thread_isalive()

BOOL __lwp_thread_isalive

(

lwp_t

thr_id

)

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__lwp_tqueue_allocate()

static tqueue_st* __lwp_tqueue_allocate ( )

static

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__lwp_tqueue_free()

static __inline__ void __lwp_tqueue_free ( tqueue_st *  tq )

static

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__lwp_tqueue_open()

static __inline__ tqueue_st* __lwp_tqueue_open ( lwpq_t  tqueue )

static

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idle_func()

static void* idle_func ( void *  arg )

static

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LWP_CloseQueue()

void LWP_CloseQueue

(

lwpq_t

thequeue

)

Close the thread synchronization queue and releas the handle.

Parameters

[in]

thequeue

handle to the thread's synchronization queue

Returns

none

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LWP_CreateThread()

s32 LWP_CreateThread	(	lwp_t *	thethread,
		void *(*)(void *)	entry,
		void *	arg,
		void *	stackbase,
		u32	stack_size,
		u8	prio
	)

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LWP_GetSelf()

lwp_t LWP_GetSelf

(

)

Return the handle to the current thread.

Returns

thread context handle

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LWP_InitQueue()

s32 LWP_InitQueue

(

lwpq_t *

thequeue

)

Initialize the thread synchronization queue.

Parameters

[in]

thequeue

pointer to a lwpq_t handle.

Returns

0 on success, <0 on error

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LWP_JoinThread()

s32 LWP_JoinThread	(	lwp_t	thethread,
		void **	value_ptr
	)

Join the given thread.

Parameters

[in]	thethread	handle to the thread's context which should be joined to wait on termination.
[in]	value_ptr	pointer-pointer to a variable to receive the return code of the terminated thread.

Returns

0 on success, <0 on error

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LWP_Reschedule()

void LWP_Reschedule

(

u32

prio

)

Reschedule all threads running at the given priority.

Parameters

[in]

prio

priority level to reschedule

Returns

none

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LWP_ResumeThread()

s32 LWP_ResumeThread

(

lwp_t

thethread

)

Resume the given thread.

Parameters

[in]

thethread

handle to the thread context which should be resumed.

Returns

0 on success, <0 on error

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LWP_SetThreadPriority()

void LWP_SetThreadPriority	(	lwp_t	thethread,
		u32	prio
	)

Set the priority of the given thread.

Parameters

[in]	thethread	handle to the thread context whos priority should be changed. If NULL, the current thread will be taken.
[in]	prio	new priority to set

Returns

none

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LWP_SuspendThread()

s32 LWP_SuspendThread

(

lwp_t

thethread

)

Suspend the given thread.

Parameters

[in]

thethread

handle to the thread context which should be suspended.

Returns

0 on success, <0 on error

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LWP_ThreadBroadcast()

void LWP_ThreadBroadcast

(

lwpq_t

thequeue

)

Removes all blocked threads from the thread synchronization queue and sets them back to running state.

Parameters

[in]

thequeue

handle to the thread's synchronization queue to pop the blocked threads off

Returns

none

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LWP_ThreadIsSuspended()

BOOL LWP_ThreadIsSuspended

(

lwp_t

thethread

)

Test whether the given thread is suspended or not.

Parameters

[in]

thethread

handle to the thread context which should be tested.

Returns

TRUE or FALSE

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LWP_ThreadSignal()

void LWP_ThreadSignal

(

lwpq_t

thequeue

)

Signals one thread to be revmoved from the thread synchronization queue and sets it back to running state.

Parameters

[in]

thequeue

handle to the thread's synchronization queue to pop the blocked thread off

Returns

none

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LWP_ThreadSleep()

s32 LWP_ThreadSleep

(

lwpq_t

thequeue

)

Pushes the current thread onto the given thread synchronization queue and sets the thread state to blocked.

Parameters

[in]

thequeue

handle to the thread's synchronization queue to push the thread on

Returns

none

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LWP_YieldThread()

void LWP_YieldThread

(

)

Yield the current thread to another one with higher priority or if not running at the same priority which state is runnable.

Returns

none

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Variable Documentation

__stack_addr

u8 __stack_addr[]

__stack_end

u8 __stack_end[]

_lwp_thr_objects

lwp_objinfo _lwp_thr_objects

_lwp_tqueue_objects

lwp_objinfo _lwp_tqueue_objects