threadinfo.c File Reference

L4-specific functions for getting thread information. More...

#include <l4/util/rdtsc.h>
#include <l4/log/l4log.h>
#include <l4/names/libnames.h>
#include "threadinfo.h"
#include "service.h"
#include "debug.h"

Defines
#define	DIRENT_BUF_SIZE   4096
Functions
int	get_thread_info (thread_t tid, thread_info_t *thread, thread_t *next)
	Return prio and time of a given pid.
int	get_thread_name (thread_info_t *thread)
	Return name of a thread.
int	get_thread_values (load_display_t *disp)
	Read thread-values into load-display struct.

---

Detailed Description

L4-specific functions for getting thread information.

Date:

01/19/2004

Author:

Jork Loeser <jork.loeser@inf.tu-dresden.de>

---

Function Documentation

int get_thread_info	(	thread_t	tid,
		thread_info_t *	thread,
		thread_t *	next
	)

Return prio and time of a given pid.

This function fills: tid, prio, abstime

Returns:

0 on success, !0 else

Return values:

next

contains the next thread-id

int get_thread_name

(

thread_info_t *

thread

)

Return name of a thread.

This function fills: name

Returns:

1 on error, 0 else

int get_thread_values

(

load_display_t *

disp

)

Read thread-values into load-display struct.

This function reads the current thread information into the given struct. The entries are read from the /proc filesystem. This functions only modifies the following arguments:

disp->list list of thread-infos, unsorted

Return values:

	disp->list_size	number of valid elements in list
	disp->array	array of thread-infos, tid-sorted
	disp->array_size	number of allocated array-elements

list and array are allocated as needed, reusing previously allocated fields.

Precondition:

Not reentrant, Must not be called in parallel.

References check_list(), get_thread_info(), and get_thread_name().