CPU Proc Public APIs

Description

Functions
void	ReadProcessName (FILE *fp, char *procName)
	This function reads the Process Name from /proc/stat. More...
void	ReadSkippingRandomChar (FILE *fp, char *str)
	This function reads the Process Command Line Output from /proc/cmdline and removes extra characters. More...
char *	GetValuesFromFile (char *fname, char *searchStr, char *strValue, unsigned int strValueLen)
	This function retrieves value of matching string from a file.
void	GetNumOfClientsConnected (unsigned int *cliCount)
void	ReadDeviceName ()
	This function retrieves device name and manufacturer name.
void	stProcData::ReadProcStat (FILE *fp_procStat)
	This function reads status of the Process and gives information like : More...
void	stProcData::OutFilename (char *outProcFilename, int is_dynamic)
	This function constructs a file name based on parameters such as - output Directory Name,PID value,s_comm data,PID value,s_comm data. For example : "/opt/logs/cpuprocanalyzer/<PID value>/s_comm/<PID value>/s_comm". More...
void	stProcData::OutFilename (char *outProcFilename, int ppid, char *pname)
	This function constructs a file name based on parameters such as - output Directory Name,PPID value,Parent process Name,PID value,s_comm data. For example : "/opt/logs/cpuprocanalyzer/<PPID value>/<Parent process name>/<PID value>/s_comm". More...
void	stProcData::GetTotalUsedTime (unsigned long *outTotalTime)
	This function gives Total CPU used time. More...
void	stProcData::GetUserUsedTime (unsigned long *outUserTime)
	This function gives User used CPU time. More...
void	stProcData::GetSystemUsedTime (unsigned long *outSystemTime)
	This function gives information about System used CPU time. More...
void	stProcData::GetTotalMjrFlts (unsigned int *outTotalMjrFlts)
	This function gives the information about Total Major Faults. More...

Function Documentation

ReadProcessName()

void ReadProcessName	(	FILE *	fp,
		char *	procName
	)

This function reads the Process Name from /proc/stat.

Parameters

[in]	fp	File Pointer
[in]	procName	Process Name

Definition at line 287 of file cpuproc_analyzer.cpp.

ReadSkippingRandomChar()

void ReadSkippingRandomChar	(	FILE *	fp,
		char *	str
	)

This function reads the Process Command Line Output from /proc/cmdline and removes extra characters.

Parameters

[in]	fp	File Pointer
[in]	str	String

Definition at line 312 of file cpuproc_analyzer.cpp.

ReadProcStat()

void stProcData::ReadProcStat ( FILE *  fp_procStat )

inline

This function reads status of the Process and gives information like :

• Parent PID, Parent Name, Number of threads in the Process

Parameters

[in]

fp_procStat

File Pointer

Definition at line 532 of file cpuproc_analyzer.cpp.

OutFilename() [1/2]

void stProcData::OutFilename ( char *  outProcFilename, int  is_dynamic  )

inline

This function constructs a file name based on parameters such as - output Directory Name,PID value,s_comm data,PID value,s_comm data. For example : "/opt/logs/cpuprocanalyzer/<PID value>/s_comm/<PID value>/s_comm".

Parameters

[in]

outProcFilename

Output Process Filename

Definition at line 549 of file cpuproc_analyzer.cpp.

OutFilename() [2/2]

void stProcData::OutFilename ( char *  outProcFilename, int  ppid, char *  pname  )

inline

This function constructs a file name based on parameters such as - output Directory Name,PPID value,Parent process Name,PID value,s_comm data. For example : "/opt/logs/cpuprocanalyzer/<PPID value>/<Parent process name>/<PID value>/s_comm".

Parameters

[in]	outProcFilename	Output Process Filename
[in]	ppid	Parent PID
[in]	pname	Parent Name

Definition at line 569 of file cpuproc_analyzer.cpp.

GetTotalUsedTime()

void stProcData::GetTotalUsedTime ( unsigned long *  outTotalTime )

inline

This function gives Total CPU used time.

• Total CPU Used Time value is the sum of User Used CPU Time value and System Used CPU Time value

Parameters

[out]

outTotalTime

Output Total CPU Used Time value

Definition at line 581 of file cpuproc_analyzer.cpp.

GetUserUsedTime()

void stProcData::GetUserUsedTime ( unsigned long *  outUserTime )

inline

This function gives User used CPU time.

• User time is the amount of time the CPU was busy executing code in user space.

Parameters

[out]

outUserTime

Output User used CPU Time value

Definition at line 593 of file cpuproc_analyzer.cpp.

GetSystemUsedTime()

void stProcData::GetSystemUsedTime ( unsigned long *  outSystemTime )

inline

This function gives information about System used CPU time.

• System time is the amount of time the CPU was busy executing code in kernel space.

Parameters

[out]

outSystemTime

Output System used CPU Time value

Definition at line 605 of file cpuproc_analyzer.cpp.

GetTotalMjrFlts()

void stProcData::GetTotalMjrFlts ( unsigned int *  outTotalMjrFlts )

inline

This function gives the information about Total Major Faults.

• The number of major faults the process has made which required loading a memory page from disk.

Parameters

[out]

outTotalMjrFlts

Outputs Total Major Faults

Definition at line 617 of file cpuproc_analyzer.cpp.