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/*
* HrProcessorEntry.c v0.10 * Generated in conjunction with Management Factory scripts: * script version: SNMPv1, 0.16, Apr 25, 1996 * project: D:\TEMP\EXAMPLE\HOSTMIB **************************************************************************** * * * (C) Copyright 1995 DIGITAL EQUIPMENT CORPORATION * * * * This software is an unpublished work protected under the * * the copyright laws of the United States of America, all * * rights reserved. * * * * In the event this software is licensed for use by the United * * States Government, all use, duplication or disclosure by the * * United States Government is subject to restrictions as set * * forth in either subparagraph (c)(1)(ii) of the Rights in * * Technical Data And Computer Software Clause at DFARS * * 252.227-7013, or the Commercial Computer Software Restricted * * Rights Clause at FAR 52.221-19, whichever is applicable. * * * **************************************************************************** * * Facility: * * Windows NT SNMP Extension Agent * * Abstract: * * This module contains the code for dealing with the get, set, and * instance name routines for the HrProcessorEntry. Actual instrumentation code is * supplied by the developer. * * Functions: * * A get and set routine for each attribute in the class. * * The routines for instances within the class. * * Author: * * D. D. Burns @ Webenable Inc * * Revision History: * * V1.00 - 04/28/97 D. D. Burns Genned: Thu Nov 07 16:42:19 1996 * */
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <windows.h>
#include <malloc.h>
#include <snmp.h>
#include "mib.h"
#include "smint.h"
#include "hostmsmi.h"
#include "user.h" /* Developer supplied include file */
#include "HMCACHE.H" /* Cache-related definitions */
#include "HRDEVENT.H" /* HrDevice Table-related definitions */
#include <stdio.h>
/*
|==============================================================================| "Processor-Information Buffer" Definition|| This definition defines a logical "Processor Information Block" where we| can store all the information returned from an NtQuerySystemInformation()| call that requests "SystemProcessorPerformanceInformation" for each running| processor.*/typedef struct pi_block { struct pi_block *other; // Associated "other" buffer
LARGE_INTEGER sys_time; // Time when "pi_array" was last
// refreshed in 100ns ticks
SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION *pi_array; // Array: One element per processor
DWORD pi_size; // Size in bytes of "pi_array" storage
} PI_BLOCK;
/*
|==============================================================================| "Processor-Information Buffer" Instances|| We create two instances of a Processor Information Buffer, one for the| "oldest" and a second for "newest" samples of timer values. Maintaining | two enables us to compute the average over time for processor loads.|| These blocks are initialized by code in "Gen_HrProcessor_Cache()" in| this module.|| These buffers are refreshed in an alternating manner by function| "hrProcessLoad_Refresh()" (in this module) that itself is invoked on a| timer-driven basis. (See source for the function).*/staticPI_BLOCK pi_buf1; // First Buffer
staticPI_BLOCK pi_buf2; // Second Buffer
/*
|==============================================================================| Oldest "Processor-Information Buffer"|| This cell points at one of the two PI_BLOCKs above. It always points to| the buffer block that has the "oldest" data in it.*/staticPI_BLOCK *oldest_pi=NULL;
#if defined(PROC_CACHE) // For debug cache dump only
staticint processor_count;#endif
/*
* GetHrProcessorFrwID * The product ID of the firmware associated with the processor. * * Gets the value for HrProcessorFrwID. * * Arguments: * * outvalue address to return variable value * accesss Reserved for future security use * instance address of instance name as ordered native * data type(s) * * Return Codes: * * Standard PDU error codes. * * SNMP_ERRORSTATUS_NOERROR Successful get * SNMP_ERRORSTATUS_GENERR Catch-all failure code * mibtget.c v0.10 * | =============== From WebEnable Design Spec Rev 3 04/11/97================== | hrProcessorFrwID | | ACCESS SYNTAX | read-only ProductID | | "The product ID of the firmware associated with the processor." | | DISCUSSION: | | <POA-11> The underlying syntax of this attribute is Object Identifier. None | of the documented Win32 API functions seem capable of reporting this value. | We are allowed to report "unknownProductID" ("0.0") in liew of the real | value, and this will be hardcoded unless an alternative is specified. | | RESOLVED >>>>>>>> | <POA-11> Returning an unknown Product ID is acceptable. | RESOLVED >>>>>>>> | |============================================================================ | 1.3.6.1.2.1.25.3.3.1.1.<instance> | | | | | | | | | *-hrProcessorFrwID | | | *-hrProcessorEntry | | *-hrProcessorTable | *-hrDevice */
UINTGetHrProcessorFrwID( OUT ProductID *outvalue , IN Access_Credential *access , IN InstanceName *instance )
{
/*
| The deal on this attribute is that we'll never have a valid OID value| for this attribute. Consequently, we always return the standard| "unknown" OID value ("0.0") regardless of the instance value (which| by now in the calling sequence of things has been validated anyway).*/
if ( (outvalue->ids = SNMP_malloc(2 * sizeof( UINT ))) == NULL) { return SNMP_ERRORSTATUS_GENERR; }outvalue->idLength = 2;
/*
| Load in the OID value for "unknown" for ProductID: "0.0" */outvalue->ids[0] = 0;outvalue->ids[1] = 0;
return SNMP_ERRORSTATUS_NOERROR ;
} /* end of GetHrProcessorFrwID() */
/*
* GetHrProcessorLoad * The average, over the last minute, of the percentage of time that this * processor was not idle. * * Gets the value for HrProcessorLoad. * * Arguments: * * outvalue address to return variable value * accesss Reserved for future security use * instance address of instance name as ordered native * data type(s) * * Return Codes: * * Standard PDU error codes. * * SNMP_ERRORSTATUS_NOERROR Successful get * SNMP_ERRORSTATUS_GENERR Catch-all failure code * mibtget.c v0.10 * | =============== From WebEnable Design Spec Rev 3 04/11/97================== | hrProcessorLoad | | ACCESS SYNTAX | read-only INTEGER (0..100) | | "The average, over the last minute, of the percentage of time that this | processor was not idle." | | DISCUSSION: | | <POA-12> It seems likely to me that this performance statistic might be | maintained or be derivable from performance information maintained in the | Registry. Please describe. | | RESOLVED >>>>>>>> | <POA-12> I think we should just use the PerfMon code for this. | RESOLVED >>>>>>>> | |============================================================================ | We reference a continuously updated module-local cache of CPU time-usage | info maintained in the buffer-blocks "pi_buf1" and "pi_buf2" defined | at the beginning of this module. In the code below, we reach into these | caches and compute the processor load for the processor specified. |============================================================================ | 1.3.6.1.2.1.25.3.3.1.2.<instance> | | | | | | | | | *-hrProcessorLoad | | | *-hrProcessorEntry | | *-hrProcessorTable | *-hrDevice */
UINTGetHrProcessorLoad( OUT Integer *outvalue , IN Access_Credential *access , IN InstanceName *instance )
{ULONG index; /* As fetched from instance structure */CACHEROW *row; /* Row entry fetched from cache */ULONG p; /* Selected Processor (number from 0) */SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION *oldest, *newest;/* --> CPU data for "n" and "n+1minute" */LONGLONG llDendiff; /* Difference Denominator */LONGLONG llNewNum; /* Numerator of Newest Time-count */LONGLONG llOldNum; /* Numerator of Oldest Time-count */double fNum,fDen; /* Floated versions of LONGLONGs */double fload; /* Percentage Load */
/*
| Grab the instance information*/index = GET_INSTANCE(0);
/*
| Use it to find the right entry in the cache*/if ((row = FindTableRow(index, &hrDevice_cache)) == NULL) { return SNMP_ERRORSTATUS_GENERR; }
/*
| By convention with "Gen_HrProcessor_Cache()" the cache initialization| routine, the "hidden context" for devices which are "Processors" is| the Processor Number, starting with 0.*/p = row->attrib_list[HIDDEN_CTX].u.unumber_value;
/*
| We compute the load using "SystemProcessorPerformanceInformation" that| has been gathered for all processors in buffers maintained in "pi_buf1"| and "pi_buf2".|| Obtain pointers to the "newest" and "oldest" slug of information for| the specified processor out of "pi_buf1/2".*/oldest = &(oldest_pi->pi_array[p]);newest = &(oldest_pi->other->pi_array[p]);
/*
| The performance info (as of this writing) we need comes from:|| typedef struct _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION {| LARGE_INTEGER IdleTime;| LARGE_INTEGER KernelTime;| LARGE_INTEGER UserTime;| LARGE_INTEGER DpcTime; // DEVL only
| LARGE_INTEGER InterruptTime; // DEVL only
| ULONG InterruptCount;| } ....|| where "IdleTime" is taken to be time spent by this processor in its| idlethread.|| "KernelTime" is taken to be total time spent by processor in kernel| mode code (including the idle thread).|| "UserTime" is taken to be total time spent by processor in user mode| code.|| all in ticks of 100ns (one tenth of a millionth of a second).|| So total "Not-Idle" time is "(KernelTime-IdleTime) + UserTime" in ticks.| Total time for the interval is the difference in the "sys_time" that is| associated with each buffer ("oldest_pi->" and "oldest_pi->other->").|*/llNewNum = (newest->KernelTime.QuadPart - newest->IdleTime.QuadPart) + newest->UserTime.QuadPart;llOldNum = (oldest->KernelTime.QuadPart - oldest->IdleTime.QuadPart) + oldest->UserTime.QuadPart;
/* (Newest System-Time) - (Oldest System-Time) */llDendiff = oldest_pi->other->sys_time.QuadPart - oldest_pi->sys_time.QuadPart;
/* If there will be no divide by 0 */if ( llDendiff != 0 ) {
/*
| Now float these guys and convert to a percentage. */ fNum = (double) (llNewNum - llOldNum); fDen = (double) llDendiff;
fload = (fNum / fDen) * 100.0; }else { fload = 0.0; } *outvalue = (int) fload; // Truncate to integer
return SNMP_ERRORSTATUS_NOERROR ;
} /* end of GetHrProcessorLoad() */
/*
* HrProcessorEntryFindInstance * * This routine is used to verify that the specified instance is * valid. * * Arguments: * * FullOid Address for the full oid - group, variable, * and instance information * instance Address for instance specification as an oid * * Return Codes: * * SNMP_ERRORSTATUS_NOERROR Instance found and valid * SNMP_ERRORSTATUS_NOSUCHNAME Invalid instance * */
UINTHrProcessorEntryFindInstance( IN ObjectIdentifier *FullOid , IN OUT ObjectIdentifier *instance ){ UINT tmp_instance ; /* Instance arc value */ CACHEROW *row; /* Row entry fetched from cache */
//
// Developer instrumentation code to find appropriate instance goes here.
// For non-tables, it is not necessary to modify this routine. However, if
// there is any context that needs to be set, it can be done here.
//
if ( FullOid->idLength <= HRPROCESSORENTRY_VAR_INDEX ) // No instance was specified
return SNMP_ERRORSTATUS_NOSUCHNAME ; else if ( FullOid->idLength != HRPROCESSORENTRY_VAR_INDEX + 1 ) // Instance length is more than 1
return SNMP_ERRORSTATUS_NOSUCHNAME ; else // The only valid instance for a non-table are instance 0. If this
// is a non-table, the following code validates the instances. If this
// is a table, developer modification is necessary below.
tmp_instance = FullOid->ids[ HRPROCESSORENTRY_VAR_INDEX ] ;
/*
| For hrProcessorTable, the instance arc(s) is a single arc, and | it must correctly select an entry in the hrDeviceTable cache. | | Check that here. */ if ( (row = FindTableRow(tmp_instance, &hrDevice_cache)) == NULL ) { return SNMP_ERRORSTATUS_NOSUCHNAME ; } else { /*
| The instance arc selects an hrDeviceTable row entry, but is that | entry actually for a device of type "Processor"? | | (We examine the last arc of the OID that specifies the device | type in the row entry selected by the instance arc). */ if (row->attrib_list[HRDV_TYPE].u.unumber_value != HRDV_TYPE_LASTARC_PROCESSOR) {
return SNMP_ERRORSTATUS_NOSUCHNAME; }
// the instance is valid. Create the instance portion of the OID
// to be returned from this call.
instance->ids[ 0 ] = tmp_instance ; instance->idLength = 1 ; }
return SNMP_ERRORSTATUS_NOERROR ;
} /* end of HrProcessorEntryFindInstance() */
/*
* HrProcessorEntryFindNextInstance * * This routine is called to get the next instance. If no instance * was passed than return the first instance (1). * * Arguments: * * FullOid Address for the full oid - group, variable, * and instance information * instance Address for instance specification as an oid * * Return Codes: * * SNMP_ERRORSTATUS_NOERROR Instance found and valid * SNMP_ERRORSTATUS_NOSUCHNAME Invalid instance * */
UINTHrProcessorEntryFindNextInstance( IN ObjectIdentifier *FullOid , IN OUT ObjectIdentifier *instance ){ //
// Developer supplied code to find the next instance of class goes here.
// If this is a class with cardinality 1, no modification of this routine
// is necessary unless additional context needs to be set.
// If the FullOid does not specify an instance, then the only instance
// of the class is returned. If this is a table, the first row of the
// table is returned.
//
// If an instance is specified and this is a non-table class, then NOSUCHNAME
// is returned so that correct MIB rollover processing occurs. If this is
// a table, then the next instance is the one following the current instance.
// If there are no more instances in the table, return NOSUCHNAME.
//
CACHEROW *row; ULONG tmp_instance;
if ( FullOid->idLength <= HRPROCESSORENTRY_VAR_INDEX ) { /*
| Too short: must return the instance arc that selects the first | entry in the table if there is one. */ tmp_instance = 0; } else { /*
| There is at least one instance arc. Even if it is the only arc | we use it as the "index" in a request for the "NEXT" one. */ tmp_instance = FullOid->ids[ HRPROCESSORENTRY_VAR_INDEX ] ; }
/* Now go off and try to find the next instance in the table */ if ((row = FindNextTableRow(tmp_instance, &hrDevice_cache)) == NULL) { return SNMP_ERRORSTATUS_NOSUCHNAME ; }
/*
| The instance arc selects an hrDeviceTable row entry, but is that | entry actually for a device of type "Processor"? | | (We examine the last arc of the OID that specifies the device | type in the row entry selected by the instance arc). */ do { if (row->attrib_list[HRDV_TYPE].u.unumber_value == HRDV_TYPE_LASTARC_PROCESSOR) {
/* Found an hrDeviceTable entry for the right device type */ break; }
/* Step to the next row in the table */ row = GetNextTableRow( row ); } while ( row != NULL );
/* If we found a proper device-type row . . . */ if ( row != NULL) { instance->ids[ 0 ] = row->index ; instance->idLength = 1 ; } else {
/*
| Fell off the end of the hrDeviceTable without finding a row | entry that had the right device type. */ return SNMP_ERRORSTATUS_NOSUCHNAME ; }
return SNMP_ERRORSTATUS_NOERROR ;
} /* end of HrProcessorEntryFindNextInstance() */
/*
* HrProcessorEntryConvertInstance * * This routine is used to convert the object id specification of an * instance into an ordered native representation. The object id format * is that object identifier that is returned from the Find Instance * or Find Next Instance routines. It is NOT the full object identifier * that contains the group and variable object ids as well. The native * representation is an argc/argv-like structure that contains the * ordered variables that define the instance. This is specified by * the MIB's INDEX clause. See RFC 1212 for information about the INDEX * clause. * * * Arguments: * * oid_spec Address of the object id instance specification * native_spec Address to return the ordered native instance * specification * * Return Codes: * * SUCCESS Conversion complete successfully * FAILURE Unable to convert object id into native format * */
UINTHrProcessorEntryConvertInstance( IN ObjectIdentifier *oid_spec , IN OUT InstanceName *native_spec ){static char *array; /* The address of this (char *) is passed back */ /* as though it were an array of length 1 of these */ /* types. */
static ULONG inst; /* The address of this ULONG is passed back */ /* (Obviously, no "free()" action is needed) */
/* We only expect the one arc in "oid_spec" */ inst = oid_spec->ids[0]; array = (char *) &inst;
native_spec->count = 1; native_spec->array = &array; return SUCCESS ;
} /* end of HrProcessorEntryConvertInstance() */
/*
* HrProcessorEntryFreeInstance * * This routine is used to free an ordered native representation of an * instance name. * * Arguments: * * instance Address to return the ordered native instance * specification * * Return Codes: * * */
voidHrProcessorEntryFreeInstance( IN OUT InstanceName *instance ){
/* No action needed for hrProcessor Table */} /* end of HrProcessorEntryFreeInstance() */
/*
| End of Generated Code*/ /* Gen_HrProcessor_Cache - Gen. a initial cache for HrDevice PROCESSOR Table *//* Gen_HrProcessor_Cache - Gen. a initial cache for HrDevice PROCESSOR Table *//* Gen_HrProcessor_Cache - Gen. a initial cache for HrDevice PROCESSOR Table */
BOOLGen_HrProcessor_Cache( ULONG type_arc )
/*
| EXPLICIT INPUTS:|| "type_arc" is the number "n" to be used as the last arc in the| device-type OID:|| 1.3.6.1.2.1.25.3.1.n| | | || | | * Identifying arc for type| | *-hrDeviceTypes (OIDs specifying device types)| *-hrDevice|| for devices created by this cache-population routine.|| IMPLICIT INPUTS:|| None.|| OUTPUTS:|| On Success:| Function returns TRUE indicating that the HrDevice cache has been fully| populated with all rows required for Processor devices.|| On any Failure:| Function returns FALSE (indicating "not enough storage" or other| internal logic error).|| THE BIG PICTURE:|| At subagent startup time, the cache for each table in the MIB is| populated with rows for each row in the table. This function is| invoked by the start-up code in "Gen_HrDevice_Cache()" to| populate the cache for the HrDevice table with processor-specific| entries.|| OTHER THINGS TO KNOW:|| This function is loading entries into the existing HrDevice cache| for devices of type "processor" as well as setting up what logically| amounts to a "cache" of information used to compute the value of| hrProcessorLoad.|| Specifically, this function initializes module-local cells that| describe buffers containing processor-time information for each| processor.|| This function holds a convention with the GET routines earlier in| this module that the "HIDDEN_CTX" attribute for processors contains| a number that can be used to select which processor information| is to be returned. We generate this number here.|============================================================================| 1.3.6.1.2.1.25.3.3.1...| | | || | | *hrProcessorEntry| | *hrProcessorTable| *-hrDevice|*/{SYSTEM_INFO sys_info; /* Filled in by GetSystemInfo for processors */UINT i; /* Handy-Dandy loop index */char *descr; /* Selected description string */
/* Acquire system information statistics */GetSystemInfo(&sys_info);
/*
| Build a description based on the system info. We presume all processors| are identical.*/switch (sys_info.wProcessorArchitecture) {
case PROCESSOR_ARCHITECTURE_INTEL: switch (sys_info.wProcessorLevel) { case 3: descr = "Intel 80386"; break; case 4: descr = "Intel 80486"; break; case 5: descr = "Intel Pentium"; break; default: descr = "Intel"; break; } break; case PROCESSOR_ARCHITECTURE_ALPHA: switch (sys_info.wProcessorLevel) { case 21064: descr = "Alpha 21064"; break; case 21066: descr = "Alpha 21066"; break; case 21164: descr = "Alpha 21164"; break; default: descr = "DEC Alpha"; break; } break;
case PROCESSOR_ARCHITECTURE_MIPS: switch (sys_info.wProcessorLevel) { case 4: descr = "MIPS R4000"; break; default: descr = "MIPS"; break; } break;
case PROCESSOR_ARCHITECTURE_PPC: switch (sys_info.wProcessorLevel) { case 1: descr = "PPC 601"; break; case 3: descr = "PPC 603"; break; case 4: descr = "PPC 604"; break; case 6: descr = "PPC 603+"; break; case 9: descr = "PPC 604+"; break; case 20: descr = "PPC 620"; break; default: descr = "PPC"; break; } break; case PROCESSOR_ARCHITECTURE_UNKNOWN: default: descr = "Unknown Processor Type"; }
/*
| For every processor we have in the system, fill in a row in the hrDevice| table.*/for (i = 0; i < sys_info.dwNumberOfProcessors; i += 1) {
/*
| "Hidden Context" is a generated number starting at 0 which we'll | consider to be the processor number.. */
if (AddHrDeviceRow(type_arc, // DeviceType OID Last-Arc
descr, // Device Description
&i, // Hidden Ctx "Processor #"
CA_NUMBER // Hidden Ctx type
) == NULL ) {
/* Something blew */ return ( FALSE ); } }
/*
| Now initialize the PI_BLOCK instances needed to compute the hrProcessorLoad| and the pointer to the PI_BLOCK instance that is to be considered the| "oldest".*/
/*
| Storage for both buffers. . . .*/pi_buf1.pi_size = sys_info.dwNumberOfProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION);if ((pi_buf1.pi_array = (SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION *) malloc(pi_buf1.pi_size)) == NULL) { return ( FALSE ); // Out of Memory
}
pi_buf2.pi_size = sys_info.dwNumberOfProcessors * sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION);if ((pi_buf2.pi_array = (SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION *) malloc(pi_buf2.pi_size)) == NULL) { return ( FALSE ); // Out of Memory
}
/*
| Now "hook" the two buffer blocks together so we can switch between them| symmetrically.*/pi_buf1.other = &pi_buf2;pi_buf2.other = &pi_buf1;
#if defined(PROC_CACHE) // For debug cache dump only
processor_count = sys_info.dwNumberOfProcessors;#endif
/*
| Pretend the first is the oldest and get it refreshed.*/oldest_pi = &pi_buf1; // Select it
hrProcessLoad_Refresh(); // Refresh it, and select the other as "oldest"
SleepEx(1, FALSE); // Pause one millisecond to avoid divide by 0
hrProcessLoad_Refresh(); // Refresh the second and select other as "oldest"
/*
| Now each Processor Information Block contains full information (about| all processors) separated in time by 1 millisecond. The "oldest" will| be refreshed periodically every minute by the timer which is initialized| via a call to "TrapInit()" made from source "mib.c" after the initialization| of caches is complete. Once the timer begins ticking regularly, the time| samples in these two PI_BLOCK buffers will differ by one minute, (the period| of the timer) which is the period required by the definition of| "hrProcessorLoad".*/
return ( TRUE );}
/* hrProcessLoad_Refresh - Processor Load Time-Information Refresh Routine *//* hrProcessLoad_Refresh - Processor Load Time-Information Refresh Routine *//* hrProcessLoad_Refresh - Processor Load Time-Information Refresh Routine */
voidhrProcessLoad_Refresh( void )
/*
| EXPLICIT INPUTS:|| None.|| IMPLICIT INPUTS:|| The "Processor-Information Buffer" specified by module-local cell| "oldest_pi" is refreshed with new time information fetched from| the kernel.|| OUTPUTS:|| On Success:| The PI_Block specified by "oldest_pi" is refreshed and "oldest_pi"| is set to point to the other PI_BLOCK.|| On any Failure:| Function simply returns.|| THE BIG PICTURE:|| At subagent startup time, a timer is created by code in "TrapInit()"| set to "tick" at an interval of one minute.|| Each time the timer goes off, the SNMP Agent calls the | "SnmpExtensionTrap()" standard entry point for the sub agent. Rather| than handle a trap, that function will invoke this function which| gathers CPU performance data so that the hrProcessLoad value can be| properly computed.|| OTHER THINGS TO KNOW:|| We alternate the buffer into which the newest CPU data is placed| by simply changing "oldest_pi" (each time we're invoked) to point| to the "other" buffer after we're done refreshing the oldest buffer.| In this manner, we always have two buffers of Processor Load info| allowing us to compute the load during the times associated with| those two buffers.*/{NTSTATUS ntstatus;DWORD bytesused;
/* Get the current system-time in 100ns intervals . . .*/ntstatus = NtQuerySystemTime (&oldest_pi->sys_time);
/*
| . . . and as rapidly thereafter refresh the oldest buffer with information| on all processors */ntstatus = NtQuerySystemInformation(SystemProcessorPerformanceInformation, oldest_pi->pi_array, oldest_pi->pi_size, &bytesused);
#if defined(PROC_CACHE)
/* =========================== DEBUG DUMP ================================== */ { FILE *pfile; /* Dump goes here */ time_t ltime; /* For debug message */ int i; /* Loop index */ SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION *oldest, *newest;/* --> CPU data for "n" and "n+1minute" */
if ((pfile=fopen(PROC_FILE, "a+")) != NULL) {
time( <ime); fprintf(pfile, "\n=============== Open for appending: %s", ctime( <ime ));
fprintf(pfile, "Periodic Refresh of \"oldest_pi\" @ %x\n", oldest_pi);
/* For each processor . . . */ for (i=0; i < processor_count; i += 1) {
fprintf(pfile, "For Processor %d:\n", i);
oldest = &(oldest_pi->pi_array[i]); //newest = &(oldest_pi->other->pi_array[i]);
fprintf(pfile, " IdleTime = (HI) %x (LO) %x\n", oldest->IdleTime.HighPart, oldest->IdleTime.LowPart); fprintf(pfile, " KernelTime = (HI) %x (LO) %x\n", oldest->KernelTime.HighPart, oldest->KernelTime.LowPart); fprintf(pfile, " UserTime = (HI) %x (LO) %x\n", oldest->UserTime.HighPart, oldest->UserTime.LowPart); } }
fclose(pfile); }/* =========================== DEBUG DUMP ================================== */#endif
/* Now the other buffer contains the "oldest" data, so change "oldest_pi" */oldest_pi = oldest_pi->other;}
|
