SMP::SMPSignalManager Class Reference

the class which manages signal passing in SMP kernel More...

#include <signalmanager.h>

Collaboration diagram for SMP::SMPSignalManager:

[legend]List of all members.

Public Member Functions
	SMPSignalManager (SMPKernel *k)
	~SMPSignalManager ()
void	register_thread (int fid, pthread_t tid)
	at first, kernel should register to this manager about filters to watch for, so that the signal manager can know what to watch
void	start ()
void	stop (bool wait_handler)
void	clear ()
void	monitor (int id)
void	signal (int id)
int	get_thread_id (int fid)
int	get_filter_id (int id)
void	set_timeout_f (int fid, int ms)
int	get_timeout_f (int fid)
Static Public Member Functions
static int	get_timeout (int id)

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Detailed Description

the class which manages signal passing in SMP kernel

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Constructor & Destructor Documentation

SMP::SMPSignalManager::SMPSignalManager

(

SMPKernel *

k

)

constructor

SMP::SMPSignalManager::~SMPSignalManager

(

)

destructor

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Member Function Documentation

void SMP::SMPSignalManager::register_thread	(	int	fid,
		pthread_t	tid
	)

at first, kernel should register to this manager about filters to watch for, so that the signal manager can know what to watch

Parameters:

	fid	the filter to be watched, the filter should have signal-type input port implemented
	tid	the thread id of the filter's signal_handler() thread

Warning:

all the registration process (call to this function) should be finished before calling start()

void SMP::SMPSignalManager::start

(

)

start the manager for watching, this will spawn as many watchdog threads as the number of signal_handler threads in SMP kernel

void SMP::SMPSignalManager::stop

(

bool

wait_handler

)

stop the manager, which stops and kills all watchdog threads in the scope of the SMP execution

void SMP::SMPSignalManager::clear

(

)

clear the vectors which stores information about the signal threads to watch

void SMP::SMPSignalManager::monitor

(

int

id

)

this function is used to signal for start-of-watch of a signal_handler's execution

void SMP::SMPSignalManager::signal

(

int

id

)

this function is used to signal for end-of-watch of a signal_handler's execution

int SMP::SMPSignalManager::get_thread_id

(

int

fid

)

get the inner id of watchdog thread in signal manager, given the filter id defined in SMP kernel

int SMP::SMPSignalManager::get_filter_id

(

int

id

)

[inline]

get the filter id defined in SMP kernel, given the inner id of watchdog thread in signal manager

void SMP::SMPSignalManager::set_timeout_f	(	int	fid,
		int	ms
	)			[inline]

for filter to set its signal_handler watchdog's timeout value

int SMP::SMPSignalManager::get_timeout_f

(

int

fid

)

[inline]

for filter to get the timeout value

int SMP::SMPSignalManager::get_timeout

(

int

id

)

[inline, static]

for the monitor_thread (the watchdog) to get the timeout of a watchdog for a specific filter

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The documentation for this class was generated from the following files:

• signalmanager.h
• signalmanager.cpp

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