tm.h File Reference

Interface: task management. More...

#include <config.h>
#include <mem.h>

Go to the source code of this file.

Data Structures
struct	_pchain_t
struct	_tdata_t
Defines
#define	PRIO_LOWEST   1
	The lowest possible task priority.
#define	PRIO_NORMAL   10
	The priority of most tasks.
#define	PRIO_HIGHEST   20
	The highest possible task priority.
#define	T_DEAD   0
	dead and gone, stack freed
#define	T_ZOMBIE   1
	terminated, cleanup pending
#define	T_WAITING   2
	waiting for an event
#define	T_SLEEPING   3
	sleeping. wants to run.
#define	T_RUNNING   4
	running
#define	T_KERNEL   (1 << 0)
	kernel task
#define	T_USER   (1 << 1)
	user task
#define	T_IDLE   (1 << 2)
	idle task
#define	T_SHUTDOWN   (1 << 7)
	shutdown requested
#define	DEFAULT_STACK_SIZE   512
	that's enough.
#define	shutdown_requested()   (0)
Typedefs
typedef volatile unsigned char	tstate_t
	task state type
typedef volatile unsigned char	tflags_t
	task flags type
typedef unsigned char	priority_t
	task priority type
typedef unsigned long	wakeup_t
	wakeup data area type
typedef _pchain_t	pchain_t
typedef _tdata_t	tdata_t
	task data type
typedef signed int	tid_t
	task id type

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Detailed Description

Interface: task management.

Author:

Markus L. Noga <markus@noga.de>

Defines types and flags used in task management.

Definition in file tm.h.

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Define Documentation

#define DEFAULT_STACK_SIZE   512

that's enough. Definition at line 81 of file tm.h. Referenced by kmain().

#define PRIO_HIGHEST   20

The highest possible task priority. Definition at line 55 of file tm.h.

#define PRIO_LOWEST   1

The lowest possible task priority. Definition at line 51 of file tm.h.

#define PRIO_NORMAL   10

The priority of most tasks. Definition at line 53 of file tm.h. Referenced by kmain().

#define shutdown_requested (   )     (0)

Definition at line 137 of file tm.h.

#define T_DEAD   0

dead and gone, stack freed Definition at line 65 of file tm.h.

#define T_IDLE   (1 << 2)

idle task Definition at line 77 of file tm.h.

#define T_KERNEL   (1 << 0)

kernel task Definition at line 75 of file tm.h.

#define T_RUNNING   4

running Definition at line 69 of file tm.h.

#define T_SHUTDOWN   (1 << 7)

shutdown requested Definition at line 78 of file tm.h.

#define T_SLEEPING   3

sleeping. wants to run. Definition at line 68 of file tm.h.

#define T_USER   (1 << 1)

user task Definition at line 76 of file tm.h.

#define T_WAITING   2

waiting for an event Definition at line 67 of file tm.h.

#define T_ZOMBIE   1

terminated, cleanup pending Definition at line 66 of file tm.h.

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Typedef Documentation

typedef struct _pchain_t pchain_t

priority chain data type a shorthand Definition at line 100 of file tm.h.

typedef unsigned char priority_t

task priority type Definition at line 48 of file tm.h.

typedef struct _tdata_t tdata_t

task data type a shorthand Definition at line 125 of file tm.h.

typedef volatile unsigned char tflags_t

task flags type Definition at line 46 of file tm.h.

typedef signed int tid_t

task id type In effect, the kernel simply typecasts *tdata_t to tid_t. Definition at line 143 of file tm.h.

typedef volatile unsigned char tstate_t

task state type Definition at line 45 of file tm.h.

typedef unsigned long wakeup_t

wakeup data area type Definition at line 57 of file tm.h. Referenced by wait_event().

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