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Developer Documentation |
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Centre for Vision, Speech & Signal Processing |
Parent Classes:
Variables:
- BooleanT exists;
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Process exists ?
Basic info. Statable.
- BooleanT basic_valid;
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Information valid ?
- int size;
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Size of process
- DateC started;
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When was it started.
- UserInfoC owner;
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Owner of process.
- int grpid;
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Group id.
Bit more privilaged. (requires open file handle.)
- StringC cmdLine;
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The command line.
- BooleanT stopped;
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Has process been stopped ?
- BooleanT detail_valid;
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Information valid ?
- int niceness;
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Niceness.
- int priority;
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Current priority of process.
- int ppid;
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Parent id.
- int pgrp;
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Process group id.
- DateC pr_time;
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Processor time.
- DateC pr_ctime;
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Child processor time.
Methods:
- ProcessInfoBodyC(int apid = -1)
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Constructor.
- BooleanT Update()
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Update information.
- BooleanT GetBasic(int fd = -1)
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Get basic info.
- BooleanT GetDetail(int fd)
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Get detailed info.
- IntT Niceness() const
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Get niceness of process.
- BooleanT Nice(int nicev)
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Set niceness of process
- BooleanT Exists() const
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Does process exist ?
- const UserInfoC & Owner() const
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Who owns it.
- const DateC & Started() const
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When was the process started ?
- RealT CPUTime() const
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How much time spent on CPU ?
For this process only.
- const StringC & CmdLine() const
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What was the command line ?
- BooleanT Signal(IntT signo)
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Send a signal to the process.
- BooleanT Kill(BooleanT hard = FALSE)
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Kill the child process.
If hard is FALSE, a SIGQUIT is sent.(This can be intercepted by the
process) Otherwise a SIGKILL is sent.
- BooleanT SigStop()
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Stop this process. (Like Ctrl-z)
- BooleanT SigContinue()
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Continue this process.
Restart the this process after a stop.
- int Pid() const
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Get process id.
- UserInfoC Owner()
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Find the owner of the process.
- UIntT Hash() const
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Hash on pid.
- UIntT MemorySize()
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Get the amount of memory this process is using.
Returns 0 if failed. 1 if special
Will return ((UIntT) -1) if process size is bigger than 4Gb.
- FilenameC ProcFile()
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Generate filename for entry in /proc/
- BodyRefCounterVC & Copy() const
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Creat a copy of this object.
- BooleanT operator==(const BodyRefCounterVC & oth) const
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Compair identitys.
- BooleanT operator!=(const BodyRefCounterVC & oth) const
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Compair identitys.
- BooleanT Save(ostream & out) const
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Save to ostream.
- void AddReference()
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Another reference to the object has been created.
- void RemoveReference()
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One reference to the object was deleted.
Locking scheme
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The object is possible to lock (to make constant). The scheme
assumes that the object is created, it can be locked, after that
it can only be destroyed. The locked object cannot be unlocked.
This locking scheme is very useful
during debugging, using assert() function,
when it is necassary to check that object
is treated as constant and the constancy is not violated by
any casting or passing through the copy constructor of shared
objects.
- void SetConst(void) const
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This locks the object.
Often objects you wish to lock are already const.
- void SetConst(void)
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This locks the object.
- BooleanT IsConst(void) const
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Returns TRUE if the object is locked, ie. it is assumed to be constant.
- BooleanT IsNotConst(void) const
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Returns TRUE if the object is unlocked.
ie. there is no special
information if the object is constant or not.
Counter state information
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- BooleanT ToBeDeleted() const
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Returns TRUE if there is only one reference to the object and the whole object or its reference counting part can be deleted.
- BooleanT ToBeDeletedRemoveIgnoreNoRemove()
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Decrement refrence by 1 return true if this leaves no refrences to the object.
- BooleanT ToBeDeletedRemove()
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Decrement refrence by 1 return true if this leaves no refrences to the object. This also checks the NoRemove flag.
- BooleanT BodyMightBeDeleted() const
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Returns TRUE if the reference counted part of the object can be deleted, ie. flag NOREMOVE is false .
- BooleanT IsCountZero() const
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Are there any refrences left ?
- BooleanT BRCPtrCanDeleteObject() const
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Used by BRRCPtrC to establish if an object has ZERO refrences and can be deleted.
- IntT Count() const
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Returns the current state of the counter, ie. how many references to this object exist.
- const BodyRefCounterC & operator=(const BodyRefCounterC & b)
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It has not meaning to assign object 'b' to this object because it would destroy a history of the object which is counted. So this is a dummy function.
- BooleanT IsValidObject() const
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Test if object is valid.
When amma check is disabled this always returns true.
- BooleanT UserBitTest(IntT x) const
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Test user flag.
- void UserBitSet(IntT x,BooleanT setit = TRUE)
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Test user flag.
- void UserBitZero(IntT x)
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Set bit to zero.
- void ReportBRCError(char * Msg)
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Report error, used in BRCPtrC.
- UIntT Hash() const
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Hash on address of object.
- void SetUndeletable()
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Make object undeletable.
Usefull to prevent recursive deleting in graph structures.
Only hackers need this function.
- void ReportInvalidObject(char * Msg = 0) const
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Tell user about validation failure.
- LabelT Label() const
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Returns the label of this reference counter.
The member function
is useful mainly to recognize objects during debugging.
The value of the label is uniquely defined pointer.
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Programmer:Charles Galambos, Documentation by CxxDoc: Tue Mar 20 10:49:27 2001
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