2 * Performance Data Helper (pdh.dll)
4 * Copyright 2007 Andrey Turkin
5 * Copyright 2007 Hans Leidekker
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
25 #define NONAMELESSUNION
26 #define NONAMELESSSTRUCT
34 #include "wine/debug.h"
35 #include "wine/list.h"
36 #include "wine/unicode.h"
38 WINE_DEFAULT_DEBUG_CHANNEL(pdh);
40 static CRITICAL_SECTION pdh_handle_cs;
41 static CRITICAL_SECTION_DEBUG pdh_handle_cs_debug =
44 { &pdh_handle_cs_debug.ProcessLocksList,
45 &pdh_handle_cs_debug.ProcessLocksList },
46 0, 0, { (DWORD_PTR)(__FILE__ ": pdh_handle_cs") }
48 static CRITICAL_SECTION pdh_handle_cs = { &pdh_handle_cs_debug, -1, 0, 0, 0, 0 };
50 static inline void *heap_alloc( SIZE_T size )
52 return HeapAlloc( GetProcessHeap(), 0, size );
55 static inline void *heap_alloc_zero( SIZE_T size )
57 return HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, size );
60 static inline void heap_free( LPVOID mem )
62 HeapFree( GetProcessHeap(), 0, mem );
65 static inline WCHAR *pdh_strdup( const WCHAR *src )
69 if (!src) return NULL;
70 if ((dst = heap_alloc( (strlenW( src ) + 1) * sizeof(WCHAR) ))) strcpyW( dst, src );
74 static inline WCHAR *pdh_strdup_aw( const char *src )
79 if (!src) return NULL;
80 len = MultiByteToWideChar( CP_ACP, 0, src, -1, NULL, 0 );
81 if ((dst = heap_alloc( len * sizeof(WCHAR) ))) MultiByteToWideChar( CP_ACP, 0, src, -1, dst, len );
85 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
87 TRACE("(0x%p, %d, %p)\n",hinstDLL,fdwReason,lpvReserved);
89 if (fdwReason == DLL_WINE_PREATTACH) return FALSE; /* prefer native version */
91 if (fdwReason == DLL_PROCESS_ATTACH)
93 DisableThreadLibraryCalls( hinstDLL );
108 DWORD magic; /* signature */
109 struct list entry; /* list entry */
110 WCHAR *path; /* identifier */
111 DWORD type; /* counter type */
112 DWORD status; /* update status */
113 LONG scale; /* scale factor */
114 LONG defaultscale; /* default scale factor */
115 DWORD_PTR user; /* user data */
116 DWORD_PTR queryuser; /* query user data */
117 LONGLONG base; /* samples per second */
118 FILETIME stamp; /* time stamp */
119 void (CALLBACK *collect)( struct counter * ); /* collect callback */
120 union value one; /* first value */
121 union value two; /* second value */
124 #define PDH_MAGIC_COUNTER 0x50444831 /* 'PDH1' */
126 static struct counter *create_counter( void )
128 struct counter *counter;
130 if ((counter = heap_alloc_zero( sizeof(struct counter) )))
132 counter->magic = PDH_MAGIC_COUNTER;
138 static void destroy_counter( struct counter *counter )
141 heap_free( counter->path );
142 heap_free( counter );
145 #define PDH_MAGIC_QUERY 0x50444830 /* 'PDH0' */
149 DWORD magic; /* signature */
150 DWORD_PTR user; /* user data */
151 HANDLE thread; /* collect thread */
152 DWORD interval; /* collect interval */
153 HANDLE wait; /* wait event */
154 HANDLE stop; /* stop event */
155 struct list counters; /* counter list */
158 static struct query *create_query( void )
162 if ((query = heap_alloc_zero( sizeof(struct query) )))
164 query->magic = PDH_MAGIC_QUERY;
165 list_init( &query->counters );
171 static void destroy_query( struct query *query )
179 DWORD index; /* name index */
180 const WCHAR *path; /* identifier */
181 void (CALLBACK *collect)( struct counter * ); /* collect callback */
182 DWORD type; /* counter type */
183 LONG scale; /* default scale factor */
184 LONGLONG base; /* samples per second */
187 static const WCHAR path_processor_time[] =
188 {'\\','P','r','o','c','e','s','s','o','r','(','_','T','o','t','a','l',')',
189 '\\','%',' ','P','r','o','c','e','s','s','o','r',' ','T','i','m','e',0};
190 static const WCHAR path_uptime[] =
191 {'\\','S','y','s','t','e','m', '\\', 'S','y','s','t','e','m',' ','U','p',' ','T','i','m','e',0};
193 static void CALLBACK collect_processor_time( struct counter *counter )
195 counter->two.largevalue = 500000; /* FIXME */
196 counter->status = PDH_CSTATUS_VALID_DATA;
199 static void CALLBACK collect_uptime( struct counter *counter )
201 counter->two.largevalue = GetTickCount64();
202 counter->status = PDH_CSTATUS_VALID_DATA;
205 #define TYPE_PROCESSOR_TIME \
206 (PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_RATE | PERF_TIMER_100NS | PERF_DELTA_COUNTER | \
207 PERF_INVERSE_COUNTER | PERF_DISPLAY_PERCENT)
209 #define TYPE_UPTIME \
210 (PERF_SIZE_LARGE | PERF_TYPE_COUNTER | PERF_COUNTER_ELAPSED | PERF_OBJECT_TIMER | PERF_DISPLAY_SECONDS)
212 /* counter source registry */
213 static const struct source counter_sources[] =
215 { 6, path_processor_time, collect_processor_time, TYPE_PROCESSOR_TIME, -5, 10000000 },
216 { 674, path_uptime, collect_uptime, TYPE_UPTIME, -3, 1000 }
219 static BOOL pdh_match_path( LPCWSTR fullpath, LPCWSTR path )
223 if (strchrW( path, '\\')) p = fullpath;
224 else p = strrchrW( fullpath, '\\' ) + 1;
225 if (strcmpW( p, path )) return FALSE;
229 /***********************************************************************
230 * PdhAddCounterA (PDH.@)
232 PDH_STATUS WINAPI PdhAddCounterA( PDH_HQUERY query, LPCSTR path,
233 DWORD_PTR userdata, PDH_HCOUNTER *counter )
238 TRACE("%p %s %lx %p\n", query, debugstr_a(path), userdata, counter);
240 if (!path) return PDH_INVALID_ARGUMENT;
242 if (!(pathW = pdh_strdup_aw( path )))
243 return PDH_MEMORY_ALLOCATION_FAILURE;
245 ret = PdhAddCounterW( query, pathW, userdata, counter );
251 /***********************************************************************
252 * PdhAddCounterW (PDH.@)
254 PDH_STATUS WINAPI PdhAddCounterW( PDH_HQUERY hquery, LPCWSTR path,
255 DWORD_PTR userdata, PDH_HCOUNTER *hcounter )
257 struct query *query = hquery;
258 struct counter *counter;
261 TRACE("%p %s %lx %p\n", hquery, debugstr_w(path), userdata, hcounter);
263 if (!path || !hcounter) return PDH_INVALID_ARGUMENT;
265 EnterCriticalSection( &pdh_handle_cs );
266 if (!query || query->magic != PDH_MAGIC_QUERY)
268 LeaveCriticalSection( &pdh_handle_cs );
269 return PDH_INVALID_HANDLE;
273 for (i = 0; i < sizeof(counter_sources) / sizeof(counter_sources[0]); i++)
275 if (pdh_match_path( counter_sources[i].path, path ))
277 if ((counter = create_counter()))
279 counter->path = pdh_strdup( counter_sources[i].path );
280 counter->collect = counter_sources[i].collect;
281 counter->type = counter_sources[i].type;
282 counter->defaultscale = counter_sources[i].scale;
283 counter->base = counter_sources[i].base;
284 counter->queryuser = query->user;
285 counter->user = userdata;
287 list_add_tail( &query->counters, &counter->entry );
290 LeaveCriticalSection( &pdh_handle_cs );
291 return ERROR_SUCCESS;
293 LeaveCriticalSection( &pdh_handle_cs );
294 return PDH_MEMORY_ALLOCATION_FAILURE;
297 LeaveCriticalSection( &pdh_handle_cs );
298 return PDH_CSTATUS_NO_COUNTER;
301 /***********************************************************************
302 * PdhAddEnglishCounterA (PDH.@)
304 PDH_STATUS WINAPI PdhAddEnglishCounterA( PDH_HQUERY query, LPCSTR path,
305 DWORD_PTR userdata, PDH_HCOUNTER *counter )
307 TRACE("%p %s %lx %p\n", query, debugstr_a(path), userdata, counter);
309 if (!query) return PDH_INVALID_ARGUMENT;
310 return PdhAddCounterA( query, path, userdata, counter );
313 /***********************************************************************
314 * PdhAddEnglishCounterW (PDH.@)
316 PDH_STATUS WINAPI PdhAddEnglishCounterW( PDH_HQUERY query, LPCWSTR path,
317 DWORD_PTR userdata, PDH_HCOUNTER *counter )
319 TRACE("%p %s %lx %p\n", query, debugstr_w(path), userdata, counter);
321 if (!query) return PDH_INVALID_ARGUMENT;
322 return PdhAddCounterW( query, path, userdata, counter );
325 /* caller must hold counter lock */
326 static PDH_STATUS format_value( struct counter *counter, DWORD format, union value *raw1,
327 union value *raw2, PDH_FMT_COUNTERVALUE *value )
331 factor = counter->scale ? counter->scale : counter->defaultscale;
332 if (format & PDH_FMT_LONG)
334 if (format & PDH_FMT_1000) value->u.longValue = raw2->longvalue * 1000;
335 else value->u.longValue = raw2->longvalue * pow( 10, factor );
337 else if (format & PDH_FMT_LARGE)
339 if (format & PDH_FMT_1000) value->u.largeValue = raw2->largevalue * 1000;
340 else value->u.largeValue = raw2->largevalue * pow( 10, factor );
342 else if (format & PDH_FMT_DOUBLE)
344 if (format & PDH_FMT_1000) value->u.doubleValue = raw2->doublevalue * 1000;
345 else value->u.doubleValue = raw2->doublevalue * pow( 10, factor );
349 WARN("unknown format %x\n", format);
350 return PDH_INVALID_ARGUMENT;
352 return ERROR_SUCCESS;
355 /***********************************************************************
356 * PdhCalculateCounterFromRawValue (PDH.@)
358 PDH_STATUS WINAPI PdhCalculateCounterFromRawValue( PDH_HCOUNTER handle, DWORD format,
359 PPDH_RAW_COUNTER raw1, PPDH_RAW_COUNTER raw2,
360 PPDH_FMT_COUNTERVALUE value )
363 struct counter *counter = handle;
365 TRACE("%p 0x%08x %p %p %p\n", handle, format, raw1, raw2, value);
367 if (!value) return PDH_INVALID_ARGUMENT;
369 EnterCriticalSection( &pdh_handle_cs );
370 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
372 LeaveCriticalSection( &pdh_handle_cs );
373 return PDH_INVALID_HANDLE;
376 ret = format_value( counter, format, (union value *)&raw1->SecondValue,
377 (union value *)&raw2->SecondValue, value );
379 LeaveCriticalSection( &pdh_handle_cs );
384 /***********************************************************************
385 * PdhCloseQuery (PDH.@)
387 PDH_STATUS WINAPI PdhCloseQuery( PDH_HQUERY handle )
389 struct query *query = handle;
390 struct list *item, *next;
392 TRACE("%p\n", handle);
394 EnterCriticalSection( &pdh_handle_cs );
395 if (!query || query->magic != PDH_MAGIC_QUERY)
397 LeaveCriticalSection( &pdh_handle_cs );
398 return PDH_INVALID_HANDLE;
403 HANDLE thread = query->thread;
404 SetEvent( query->stop );
405 LeaveCriticalSection( &pdh_handle_cs );
407 WaitForSingleObject( thread, INFINITE );
409 EnterCriticalSection( &pdh_handle_cs );
410 if (query->magic != PDH_MAGIC_QUERY)
412 LeaveCriticalSection( &pdh_handle_cs );
413 return ERROR_SUCCESS;
415 CloseHandle( query->stop );
416 CloseHandle( query->thread );
417 query->thread = NULL;
420 LIST_FOR_EACH_SAFE( item, next, &query->counters )
422 struct counter *counter = LIST_ENTRY( item, struct counter, entry );
424 list_remove( &counter->entry );
425 destroy_counter( counter );
428 destroy_query( query );
430 LeaveCriticalSection( &pdh_handle_cs );
431 return ERROR_SUCCESS;
434 /* caller must hold query lock */
435 static void collect_query_data( struct query *query )
439 LIST_FOR_EACH( item, &query->counters )
442 struct counter *counter = LIST_ENTRY( item, struct counter, entry );
444 counter->collect( counter );
446 GetLocalTime( &time );
447 SystemTimeToFileTime( &time, &counter->stamp );
451 /***********************************************************************
452 * PdhCollectQueryData (PDH.@)
454 PDH_STATUS WINAPI PdhCollectQueryData( PDH_HQUERY handle )
456 struct query *query = handle;
458 TRACE("%p\n", handle);
460 EnterCriticalSection( &pdh_handle_cs );
461 if (!query || query->magic != PDH_MAGIC_QUERY)
463 LeaveCriticalSection( &pdh_handle_cs );
464 return PDH_INVALID_HANDLE;
467 if (list_empty( &query->counters ))
469 LeaveCriticalSection( &pdh_handle_cs );
473 collect_query_data( query );
475 LeaveCriticalSection( &pdh_handle_cs );
476 return ERROR_SUCCESS;
479 static DWORD CALLBACK collect_query_thread( void *arg )
481 struct query *query = arg;
482 DWORD interval = query->interval;
483 HANDLE stop = query->stop;
487 if (WaitForSingleObject( stop, interval ) != WAIT_TIMEOUT) ExitThread( 0 );
489 EnterCriticalSection( &pdh_handle_cs );
490 if (query->magic != PDH_MAGIC_QUERY)
492 LeaveCriticalSection( &pdh_handle_cs );
493 ExitThread( PDH_INVALID_HANDLE );
496 collect_query_data( query );
498 if (!SetEvent( query->wait ))
500 LeaveCriticalSection( &pdh_handle_cs );
503 LeaveCriticalSection( &pdh_handle_cs );
507 /***********************************************************************
508 * PdhCollectQueryDataEx (PDH.@)
510 PDH_STATUS WINAPI PdhCollectQueryDataEx( PDH_HQUERY handle, DWORD interval, HANDLE event )
513 struct query *query = handle;
515 TRACE("%p %d %p\n", handle, interval, event);
517 EnterCriticalSection( &pdh_handle_cs );
518 if (!query || query->magic != PDH_MAGIC_QUERY)
520 LeaveCriticalSection( &pdh_handle_cs );
521 return PDH_INVALID_HANDLE;
523 if (list_empty( &query->counters ))
525 LeaveCriticalSection( &pdh_handle_cs );
530 HANDLE thread = query->thread;
531 SetEvent( query->stop );
532 LeaveCriticalSection( &pdh_handle_cs );
534 WaitForSingleObject( thread, INFINITE );
536 EnterCriticalSection( &pdh_handle_cs );
537 if (query->magic != PDH_MAGIC_QUERY)
539 LeaveCriticalSection( &pdh_handle_cs );
540 return PDH_INVALID_HANDLE;
542 CloseHandle( query->thread );
543 query->thread = NULL;
545 else if (!(query->stop = CreateEventW( NULL, FALSE, FALSE, NULL )))
547 ret = GetLastError();
548 LeaveCriticalSection( &pdh_handle_cs );
552 query->interval = interval * 1000;
553 if (!(query->thread = CreateThread( NULL, 0, collect_query_thread, query, 0, NULL )))
555 ret = GetLastError();
556 CloseHandle( query->stop );
558 LeaveCriticalSection( &pdh_handle_cs );
562 LeaveCriticalSection( &pdh_handle_cs );
563 return ERROR_SUCCESS;
566 /***********************************************************************
567 * PdhCollectQueryDataWithTime (PDH.@)
569 PDH_STATUS WINAPI PdhCollectQueryDataWithTime( PDH_HQUERY handle, LONGLONG *timestamp )
571 struct query *query = handle;
572 struct counter *counter;
575 TRACE("%p %p\n", handle, timestamp);
577 if (!timestamp) return PDH_INVALID_ARGUMENT;
579 EnterCriticalSection( &pdh_handle_cs );
580 if (!query || query->magic != PDH_MAGIC_QUERY)
582 LeaveCriticalSection( &pdh_handle_cs );
583 return PDH_INVALID_HANDLE;
585 if (list_empty( &query->counters ))
587 LeaveCriticalSection( &pdh_handle_cs );
591 collect_query_data( query );
593 item = list_head( &query->counters );
594 counter = LIST_ENTRY( item, struct counter, entry );
596 *timestamp = ((LONGLONG)counter->stamp.dwHighDateTime << 32) | counter->stamp.dwLowDateTime;
598 LeaveCriticalSection( &pdh_handle_cs );
599 return ERROR_SUCCESS;
602 /***********************************************************************
603 * PdhGetCounterInfoA (PDH.@)
605 PDH_STATUS WINAPI PdhGetCounterInfoA( PDH_HCOUNTER handle, BOOLEAN text, LPDWORD size, PPDH_COUNTER_INFO_A info )
607 struct counter *counter = handle;
609 TRACE("%p %d %p %p\n", handle, text, size, info);
611 EnterCriticalSection( &pdh_handle_cs );
612 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
614 LeaveCriticalSection( &pdh_handle_cs );
615 return PDH_INVALID_HANDLE;
619 LeaveCriticalSection( &pdh_handle_cs );
620 return PDH_INVALID_ARGUMENT;
622 if (*size < sizeof(PDH_COUNTER_INFO_A))
624 *size = sizeof(PDH_COUNTER_INFO_A);
625 LeaveCriticalSection( &pdh_handle_cs );
626 return PDH_MORE_DATA;
629 memset( info, 0, sizeof(PDH_COUNTER_INFO_A) );
631 info->dwType = counter->type;
632 info->CStatus = counter->status;
633 info->lScale = counter->scale;
634 info->lDefaultScale = counter->defaultscale;
635 info->dwUserData = counter->user;
636 info->dwQueryUserData = counter->queryuser;
638 *size = sizeof(PDH_COUNTER_INFO_A);
640 LeaveCriticalSection( &pdh_handle_cs );
641 return ERROR_SUCCESS;
644 /***********************************************************************
645 * PdhGetCounterInfoW (PDH.@)
647 PDH_STATUS WINAPI PdhGetCounterInfoW( PDH_HCOUNTER handle, BOOLEAN text, LPDWORD size, PPDH_COUNTER_INFO_W info )
649 struct counter *counter = handle;
651 TRACE("%p %d %p %p\n", handle, text, size, info);
653 EnterCriticalSection( &pdh_handle_cs );
654 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
656 LeaveCriticalSection( &pdh_handle_cs );
657 return PDH_INVALID_HANDLE;
661 LeaveCriticalSection( &pdh_handle_cs );
662 return PDH_INVALID_ARGUMENT;
664 if (*size < sizeof(PDH_COUNTER_INFO_W))
666 *size = sizeof(PDH_COUNTER_INFO_W);
667 LeaveCriticalSection( &pdh_handle_cs );
668 return PDH_MORE_DATA;
671 memset( info, 0, sizeof(PDH_COUNTER_INFO_W) );
673 info->dwType = counter->type;
674 info->CStatus = counter->status;
675 info->lScale = counter->scale;
676 info->lDefaultScale = counter->defaultscale;
677 info->dwUserData = counter->user;
678 info->dwQueryUserData = counter->queryuser;
680 *size = sizeof(PDH_COUNTER_INFO_W);
682 LeaveCriticalSection( &pdh_handle_cs );
683 return ERROR_SUCCESS;
686 /***********************************************************************
687 * PdhGetCounterTimeBase (PDH.@)
689 PDH_STATUS WINAPI PdhGetCounterTimeBase( PDH_HCOUNTER handle, LONGLONG *base )
691 struct counter *counter = handle;
693 TRACE("%p %p\n", handle, base);
695 if (!base) return PDH_INVALID_ARGUMENT;
697 EnterCriticalSection( &pdh_handle_cs );
698 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
700 LeaveCriticalSection( &pdh_handle_cs );
701 return PDH_INVALID_HANDLE;
704 *base = counter->base;
706 LeaveCriticalSection( &pdh_handle_cs );
707 return ERROR_SUCCESS;
710 /***********************************************************************
711 * PdhGetFormattedCounterValue (PDH.@)
713 PDH_STATUS WINAPI PdhGetFormattedCounterValue( PDH_HCOUNTER handle, DWORD format,
714 LPDWORD type, PPDH_FMT_COUNTERVALUE value )
717 struct counter *counter = handle;
719 TRACE("%p %x %p %p\n", handle, format, type, value);
721 if (!value) return PDH_INVALID_ARGUMENT;
723 EnterCriticalSection( &pdh_handle_cs );
724 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
726 LeaveCriticalSection( &pdh_handle_cs );
727 return PDH_INVALID_HANDLE;
731 LeaveCriticalSection( &pdh_handle_cs );
732 return PDH_INVALID_DATA;
734 if (!(ret = format_value( counter, format, &counter->one, &counter->two, value )))
736 value->CStatus = ERROR_SUCCESS;
737 if (type) *type = counter->type;
740 LeaveCriticalSection( &pdh_handle_cs );
744 /***********************************************************************
745 * PdhGetRawCounterValue (PDH.@)
747 PDH_STATUS WINAPI PdhGetRawCounterValue( PDH_HCOUNTER handle, LPDWORD type,
748 PPDH_RAW_COUNTER value )
750 struct counter *counter = handle;
752 TRACE("%p %p %p\n", handle, type, value);
754 if (!value) return PDH_INVALID_ARGUMENT;
756 EnterCriticalSection( &pdh_handle_cs );
757 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
759 LeaveCriticalSection( &pdh_handle_cs );
760 return PDH_INVALID_HANDLE;
763 value->CStatus = counter->status;
764 value->TimeStamp.dwLowDateTime = counter->stamp.dwLowDateTime;
765 value->TimeStamp.dwHighDateTime = counter->stamp.dwHighDateTime;
766 value->FirstValue = counter->one.largevalue;
767 value->SecondValue = counter->two.largevalue;
768 value->MultiCount = 1; /* FIXME */
770 if (type) *type = counter->type;
772 LeaveCriticalSection( &pdh_handle_cs );
773 return ERROR_SUCCESS;
776 /***********************************************************************
777 * PdhLookupPerfIndexByNameA (PDH.@)
779 PDH_STATUS WINAPI PdhLookupPerfIndexByNameA( LPCSTR machine, LPCSTR name, LPDWORD index )
782 WCHAR *machineW = NULL;
785 TRACE("%s %s %p\n", debugstr_a(machine), debugstr_a(name), index);
787 if (!name) return PDH_INVALID_ARGUMENT;
789 if (machine && !(machineW = pdh_strdup_aw( machine ))) return PDH_MEMORY_ALLOCATION_FAILURE;
791 if (!(nameW = pdh_strdup_aw( name )))
792 return PDH_MEMORY_ALLOCATION_FAILURE;
794 ret = PdhLookupPerfIndexByNameW( machineW, nameW, index );
797 heap_free( machineW );
801 /***********************************************************************
802 * PdhLookupPerfIndexByNameW (PDH.@)
804 PDH_STATUS WINAPI PdhLookupPerfIndexByNameW( LPCWSTR machine, LPCWSTR name, LPDWORD index )
808 TRACE("%s %s %p\n", debugstr_w(machine), debugstr_w(name), index);
810 if (!name || !index) return PDH_INVALID_ARGUMENT;
814 FIXME("remote machine not supported\n");
815 return PDH_CSTATUS_NO_MACHINE;
817 for (i = 0; i < sizeof(counter_sources) / sizeof(counter_sources[0]); i++)
819 if (pdh_match_path( counter_sources[i].path, name ))
821 *index = counter_sources[i].index;
822 return ERROR_SUCCESS;
825 return PDH_STRING_NOT_FOUND;
828 /***********************************************************************
829 * PdhLookupPerfNameByIndexA (PDH.@)
831 PDH_STATUS WINAPI PdhLookupPerfNameByIndexA( LPCSTR machine, DWORD index, LPSTR buffer, LPDWORD size )
834 WCHAR *machineW = NULL;
835 WCHAR bufferW[PDH_MAX_COUNTER_NAME];
836 DWORD sizeW = sizeof(bufferW) / sizeof(WCHAR);
838 TRACE("%s %d %p %p\n", debugstr_a(machine), index, buffer, size);
840 if (!buffer || !size) return PDH_INVALID_ARGUMENT;
842 if (machine && !(machineW = pdh_strdup_aw( machine ))) return PDH_MEMORY_ALLOCATION_FAILURE;
844 if (!(ret = PdhLookupPerfNameByIndexW( machineW, index, bufferW, &sizeW )))
846 int required = WideCharToMultiByte( CP_ACP, 0, bufferW, -1, NULL, 0, NULL, NULL );
848 if (size && *size < required) ret = PDH_MORE_DATA;
849 else WideCharToMultiByte( CP_ACP, 0, bufferW, -1, buffer, required, NULL, NULL );
850 if (size) *size = required;
852 heap_free( machineW );
856 /***********************************************************************
857 * PdhLookupPerfNameByIndexW (PDH.@)
859 PDH_STATUS WINAPI PdhLookupPerfNameByIndexW( LPCWSTR machine, DWORD index, LPWSTR buffer, LPDWORD size )
864 TRACE("%s %d %p %p\n", debugstr_w(machine), index, buffer, size);
868 FIXME("remote machine not supported\n");
869 return PDH_CSTATUS_NO_MACHINE;
872 if (!buffer || !size) return PDH_INVALID_ARGUMENT;
873 if (!index) return ERROR_SUCCESS;
875 for (i = 0; i < sizeof(counter_sources) / sizeof(counter_sources[0]); i++)
877 if (counter_sources[i].index == index)
879 WCHAR *p = strrchrW( counter_sources[i].path, '\\' ) + 1;
880 unsigned int required = strlenW( p ) + 1;
882 if (*size < required) ret = PDH_MORE_DATA;
885 strcpyW( buffer, p );
892 return PDH_INVALID_ARGUMENT;
895 /***********************************************************************
896 * PdhOpenQueryA (PDH.@)
898 PDH_STATUS WINAPI PdhOpenQueryA( LPCSTR source, DWORD_PTR userdata, PDH_HQUERY *query )
901 WCHAR *sourceW = NULL;
903 TRACE("%s %lx %p\n", debugstr_a(source), userdata, query);
905 if (source && !(sourceW = pdh_strdup_aw( source ))) return PDH_MEMORY_ALLOCATION_FAILURE;
907 ret = PdhOpenQueryW( sourceW, userdata, query );
908 heap_free( sourceW );
913 /***********************************************************************
914 * PdhOpenQueryW (PDH.@)
916 PDH_STATUS WINAPI PdhOpenQueryW( LPCWSTR source, DWORD_PTR userdata, PDH_HQUERY *handle )
920 TRACE("%s %lx %p\n", debugstr_w(source), userdata, handle);
922 if (!handle) return PDH_INVALID_ARGUMENT;
926 FIXME("log file data source not supported\n");
927 return PDH_INVALID_ARGUMENT;
929 if ((query = create_query()))
931 query->user = userdata;
934 return ERROR_SUCCESS;
936 return PDH_MEMORY_ALLOCATION_FAILURE;
939 /***********************************************************************
940 * PdhRemoveCounter (PDH.@)
942 PDH_STATUS WINAPI PdhRemoveCounter( PDH_HCOUNTER handle )
944 struct counter *counter = handle;
946 TRACE("%p\n", handle);
948 EnterCriticalSection( &pdh_handle_cs );
949 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
951 LeaveCriticalSection( &pdh_handle_cs );
952 return PDH_INVALID_HANDLE;
955 list_remove( &counter->entry );
956 destroy_counter( counter );
958 LeaveCriticalSection( &pdh_handle_cs );
959 return ERROR_SUCCESS;
962 /***********************************************************************
963 * PdhSetCounterScaleFactor (PDH.@)
965 PDH_STATUS WINAPI PdhSetCounterScaleFactor( PDH_HCOUNTER handle, LONG factor )
967 struct counter *counter = handle;
969 TRACE("%p\n", handle);
971 EnterCriticalSection( &pdh_handle_cs );
972 if (!counter || counter->magic != PDH_MAGIC_COUNTER)
974 LeaveCriticalSection( &pdh_handle_cs );
975 return PDH_INVALID_HANDLE;
977 if (factor < PDH_MIN_SCALE || factor > PDH_MAX_SCALE)
979 LeaveCriticalSection( &pdh_handle_cs );
980 return PDH_INVALID_ARGUMENT;
983 counter->scale = factor;
985 LeaveCriticalSection( &pdh_handle_cs );
986 return ERROR_SUCCESS;
989 /***********************************************************************
990 * PdhValidatePathA (PDH.@)
992 PDH_STATUS WINAPI PdhValidatePathA( LPCSTR path )
997 TRACE("%s\n", debugstr_a(path));
999 if (!path) return PDH_INVALID_ARGUMENT;
1000 if (!(pathW = pdh_strdup_aw( path ))) return PDH_MEMORY_ALLOCATION_FAILURE;
1002 ret = PdhValidatePathW( pathW );
1008 static PDH_STATUS validate_path( LPCWSTR path )
1010 if (!path || !*path) return PDH_INVALID_ARGUMENT;
1011 if (*path++ != '\\' || !strchrW( path, '\\' )) return PDH_CSTATUS_BAD_COUNTERNAME;
1012 return ERROR_SUCCESS;
1015 /***********************************************************************
1016 * PdhValidatePathW (PDH.@)
1018 PDH_STATUS WINAPI PdhValidatePathW( LPCWSTR path )
1023 TRACE("%s\n", debugstr_w(path));
1025 if ((ret = validate_path( path ))) return ret;
1027 for (i = 0; i < sizeof(counter_sources) / sizeof(counter_sources[0]); i++)
1028 if (pdh_match_path( counter_sources[i].path, path )) return ERROR_SUCCESS;
1030 return PDH_CSTATUS_NO_COUNTER;
1033 /***********************************************************************
1034 * PdhValidatePathExA (PDH.@)
1036 PDH_STATUS WINAPI PdhValidatePathExA( PDH_HLOG source, LPCSTR path )
1038 TRACE("%p %s\n", source, debugstr_a(path));
1042 FIXME("log file data source not supported\n");
1043 return ERROR_SUCCESS;
1045 return PdhValidatePathA( path );
1048 /***********************************************************************
1049 * PdhValidatePathExW (PDH.@)
1051 PDH_STATUS WINAPI PdhValidatePathExW( PDH_HLOG source, LPCWSTR path )
1053 TRACE("%p %s\n", source, debugstr_w(path));
1057 FIXME("log file data source not supported\n");
1058 return ERROR_SUCCESS;
1060 return PdhValidatePathW( path );