- [ZBX-3547] Rewrote performance counters and cpu stats collection for Windows [merged from branches/1.8 r19318

1 files changed, 46 insertions, 27 deletions

diff --git a/include/perfmon.h b/include/perfmon.h
index ab80469f4bf..b8798fe158c 100644
--- a/include/perfmon.h
+++ b/include/perfmon.h
@@ -22,39 +22,58 @@
 
 #if !defined(_WINDOWS)
 #	error "This module allowed only for Windows OS"
-#endif /* _WINDOWS */
+#endif
 
-/*
- * Performance Counter Indexes
- */
-
-#define PCI_SYSTEM			(2)
-#define PCI_PROCESSOR			(238)
-#define PCI_PROCESSOR_TIME		(6)
-#define PCI_PROCESSOR_QUEUE_LENGTH	(44)
-#define PCI_SYSTEM_UP_TIME		(674)
-#define PCI_TERMINAL_SERVICES		(2176)
-#define PCI_TOTAL_SESSIONS		(2178)
-
-/*
- * Performance Countername structure
- */
+#define PCI_SYSTEM			2
+#define PCI_PROCESSOR			238
+#define PCI_PROCESSOR_TIME		6
+#define PCI_PROCESSOR_QUEUE_LENGTH	44
+#define PCI_SYSTEM_UP_TIME		674
+#define PCI_TERMINAL_SERVICES		2176
+#define PCI_TOTAL_SESSIONS		2178
 
-struct perfcounter
+typedef enum
 {
-	struct perfcounter *next;
-	unsigned long	pdhIndex;
-	TCHAR		name[PDH_MAX_COUNTER_NAME];
-	/* must be character array! if you want to rewrite  */
-	/* to use dynamic memory allocation CHECK for usage */
-	/* of sizeof function                               */
+	PERF_COUNTER_NOTSUPPORTED = 0,
+	PERF_COUNTER_INITIALIZED,
+	PERF_COUNTER_GET_SECOND_VALUE,	/* waiting for the second raw value (needed for some, e.g. rate, counters) */
+	PERF_COUNTER_ACTIVE,
 };
 
-typedef struct perfcounter PERFCOUNTER;
+typedef struct perf_counter_id
+{
+	struct perf_counter_id	*next;
+	unsigned long		pdhIndex;
+	TCHAR			name[PDH_MAX_COUNTER_NAME];
+}
+PERF_COUNTER_ID;
+
+typedef struct perf_counter_data
+{
+	struct perf_counter_data	*next;
+	char				*name;
+	char				*counterpath;
+	int				interval;
+	int				status;
+	HCOUNTER			handle;
+	PDH_RAW_COUNTER			rawValues[2];	/* rate counters need two raw values */
+	int				olderRawValue;	/* index of the older of both values */
+	double				*value_array;	/* a circular buffer of values */
+	int				value_current;	/* index of the last stored value */
+	int				value_count;	/* number of values in the array */
+	double				sum;		/* sum of last value_count values */
+}
+PERF_COUNTER_DATA;
 
-extern PERFCOUNTER *PerfCounterList;
+PDH_STATUS	zbx_PdhMakeCounterPath(const char *function, PDH_COUNTER_PATH_ELEMENTS *cpe, char *counterpath);
+PDH_STATUS	zbx_PdhOpenQuery(const char *function, PDH_HQUERY query);
+PDH_STATUS	zbx_PdhAddCounter(const char *function, PERF_COUNTER_DATA *counter, PDH_HQUERY query,
+		const char *counterpath, PDH_HCOUNTER *handle);
+PDH_STATUS	zbx_PdhCollectQueryData(const char *function, const char *counterpath, PDH_HQUERY query);
+PDH_STATUS	zbx_PdhGetRawCounterValue(const char *function, const char *counterpath, PDH_HCOUNTER handle, PPDH_RAW_COUNTER value);
 
-LPTSTR	GetCounterName(DWORD pdhIndex);
-int	check_counter_path(char *counterPath);
+PDH_STATUS	calculate_counter_value(const char *function, const char *counterpath, double *value);
+LPTSTR		get_counter_name(DWORD pdhIndex);
+int		check_counter_path(char *counterPath);
 
 #endif /* ZABBIX_PERFMON_H */