diff options
Diffstat (limited to 'src/collectors/windows.plugin/perflib-names.c')
| -rw-r--r-- | src/collectors/windows.plugin/perflib-names.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/src/collectors/windows.plugin/perflib-names.c b/src/collectors/windows.plugin/perflib-names.c deleted file mode 100644 index 5b47cbce7..000000000 --- a/src/collectors/windows.plugin/perflib-names.c +++ /dev/null @@ -1,242 +0,0 @@ -// SPDX-License-Identifier: GPL-3.0-or-later
-
-#include "perflib.h"
-
-#define REGISTRY_KEY "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Perflib\\009"
-
-typedef struct perflib_registry {
- DWORD id;
- char *key;
- char *help;
-} perfLibRegistryEntry;
-
-static inline bool compare_perfLibRegistryEntry(const char *k1, const char *k2) {
- return strcmp(k1, k2) == 0;
-}
-
-static inline const char *value2key_perfLibRegistryEntry(perfLibRegistryEntry *entry) {
- return entry->key;
-}
-
-#define SIMPLE_HASHTABLE_COMPARE_KEYS_FUNCTION compare_perfLibRegistryEntry
-#define SIMPLE_HASHTABLE_VALUE2KEY_FUNCTION value2key_perfLibRegistryEntry
-#define SIMPLE_HASHTABLE_KEY_TYPE const char
-#define SIMPLE_HASHTABLE_VALUE_TYPE perfLibRegistryEntry
-#define SIMPLE_HASHTABLE_NAME _PERFLIB
-#include "libnetdata/simple_hashtable.h"
-
-static struct {
- SPINLOCK spinlock;
- size_t size;
- perfLibRegistryEntry **array;
- struct simple_hashtable_PERFLIB hashtable;
- FILETIME lastWriteTime;
-} names_globals = {
- .spinlock = NETDATA_SPINLOCK_INITIALIZER,
- .size = 0,
- .array = NULL,
-};
-
-DWORD RegistryFindIDByName(const char *name) {
- DWORD rc = PERFLIB_REGISTRY_NAME_NOT_FOUND;
-
- spinlock_lock(&names_globals.spinlock);
- XXH64_hash_t hash = XXH3_64bits((void *)name, strlen(name));
- SIMPLE_HASHTABLE_SLOT_PERFLIB *sl = simple_hashtable_get_slot_PERFLIB(&names_globals.hashtable, hash, name, false);
- perfLibRegistryEntry *e = SIMPLE_HASHTABLE_SLOT_DATA(sl);
- if(e) rc = e->id;
- spinlock_unlock(&names_globals.spinlock);
-
- return rc;
-}
-
-static inline void RegistryAddToHashTable_unsafe(perfLibRegistryEntry *entry) {
- XXH64_hash_t hash = XXH3_64bits((void *)entry->key, strlen(entry->key));
- SIMPLE_HASHTABLE_SLOT_PERFLIB *sl = simple_hashtable_get_slot_PERFLIB(&names_globals.hashtable, hash, entry->key, true);
- perfLibRegistryEntry *e = SIMPLE_HASHTABLE_SLOT_DATA(sl);
- if(!e || e->id > entry->id)
- simple_hashtable_set_slot_PERFLIB(&names_globals.hashtable, sl, hash, entry);
-}
-
-static void RegistrySetData_unsafe(DWORD id, const char *key, const char *help) {
- if(id >= names_globals.size) {
- // increase the size of the array
-
- size_t old_size = names_globals.size;
-
- if(!names_globals.size)
- names_globals.size = 20000;
- else
- names_globals.size *= 2;
-
- names_globals.array = reallocz(names_globals.array, names_globals.size * sizeof(perfLibRegistryEntry *));
-
- memset(names_globals.array + old_size, 0, (names_globals.size - old_size) * sizeof(perfLibRegistryEntry *));
- }
-
- perfLibRegistryEntry *entry = names_globals.array[id];
- if(!entry)
- entry = names_globals.array[id] = (perfLibRegistryEntry *)calloc(1, sizeof(perfLibRegistryEntry));
-
- bool add_to_hash = false;
- if(key && !entry->key) {
- entry->key = strdup(key);
- add_to_hash = true;
- }
-
- if(help && !entry->help)
- entry->help = strdup(help);
-
- entry->id = id;
-
- if(add_to_hash)
- RegistryAddToHashTable_unsafe(entry);
-}
-
-const char *RegistryFindNameByID(DWORD id) {
- const char *s = "";
- spinlock_lock(&names_globals.spinlock);
-
- if(id < names_globals.size) {
- perfLibRegistryEntry *titleEntry = names_globals.array[id];
- if(titleEntry && titleEntry->key)
- s = titleEntry->key;
- }
-
- spinlock_unlock(&names_globals.spinlock);
- return s;
-}
-
-const char *RegistryFindHelpByID(DWORD id) {
- const char *s = "";
- spinlock_lock(&names_globals.spinlock);
-
- if(id < names_globals.size) {
- perfLibRegistryEntry *titleEntry = names_globals.array[id];
- if(titleEntry && titleEntry->help)
- s = titleEntry->help;
- }
-
- spinlock_unlock(&names_globals.spinlock);
- return s;
-}
-
-// ----------------------------------------------------------
-
-static inline void readRegistryKeys_unsafe(BOOL helps) {
- TCHAR *pData = NULL;
-
- HKEY hKey;
- DWORD dwType;
- DWORD dwSize = 0;
- LONG lStatus;
-
- LPCSTR valueName;
- if(helps)
- valueName = TEXT("help");
- else
- valueName = TEXT("CounterDefinition");
-
- // Open the key for the English counters
- lStatus = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT(REGISTRY_KEY), 0, KEY_READ, &hKey);
- if (lStatus != ERROR_SUCCESS) {
- nd_log(NDLS_COLLECTORS, NDLP_ERR,
- "Failed to open registry key HKEY_LOCAL_MACHINE, subkey '%s', error %ld\n", REGISTRY_KEY, (long)lStatus);
- return;
- }
-
- // Get the size of the 'Counters' data
- lStatus = RegQueryValueEx(hKey, valueName, NULL, &dwType, NULL, &dwSize);
- if (lStatus != ERROR_SUCCESS) {
- nd_log(NDLS_COLLECTORS, NDLP_ERR,
- "Failed to get registry key HKEY_LOCAL_MACHINE, subkey '%s', value '%s', size of data, error %ld\n",
- REGISTRY_KEY, (const char *)valueName, (long)lStatus);
- goto cleanup;
- }
-
- // Allocate memory for the data
- pData = mallocz(dwSize);
-
- // Read the 'Counters' data
- lStatus = RegQueryValueEx(hKey, valueName, NULL, &dwType, (LPBYTE)pData, &dwSize);
- if (lStatus != ERROR_SUCCESS || dwType != REG_MULTI_SZ) {
- nd_log(NDLS_COLLECTORS, NDLP_ERR,
- "Failed to get registry key HKEY_LOCAL_MACHINE, subkey '%s', value '%s', data, error %ld\n",
- REGISTRY_KEY, (const char *)valueName, (long)lStatus);
- goto cleanup;
- }
-
- // Process the counter data
- TCHAR *ptr = pData;
- while (*ptr) {
- TCHAR *sid = ptr; // First string is the ID
- ptr += lstrlen(ptr) + 1; // Move to the next string
- TCHAR *name = ptr; // Second string is the name
- ptr += lstrlen(ptr) + 1; // Move to the next pair
-
- DWORD id = strtoul(sid, NULL, 10);
-
- if(helps)
- RegistrySetData_unsafe(id, NULL, name);
- else
- RegistrySetData_unsafe(id, name, NULL);
- }
-
-cleanup:
- if(pData) freez(pData);
- RegCloseKey(hKey);
-}
-
-static BOOL RegistryKeyModification(FILETIME *lastWriteTime) {
- HKEY hKey;
- LONG lResult;
- BOOL ret = FALSE;
-
- // Open the registry key
- lResult = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT(REGISTRY_KEY), 0, KEY_READ, &hKey);
- if (lResult != ERROR_SUCCESS) {
- nd_log(NDLS_COLLECTORS, NDLP_ERR,
- "Failed to open registry key HKEY_LOCAL_MACHINE, subkey '%s', error %ld\n", REGISTRY_KEY, (long)lResult);
- return FALSE;
- }
-
- // Get the last write time
- lResult = RegQueryInfoKey(hKey, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, lastWriteTime);
- if (lResult != ERROR_SUCCESS) {
- nd_log(NDLS_COLLECTORS, NDLP_ERR,
- "Failed to query registry key HKEY_LOCAL_MACHINE, subkey '%s', last write time, error %ld\n", REGISTRY_KEY, (long)lResult);
- ret = FALSE;
- }
- else
- ret = TRUE;
-
- RegCloseKey(hKey);
- return ret;
-}
-
-static inline void RegistryFetchAll_unsafe(void) {
- readRegistryKeys_unsafe(FALSE);
- readRegistryKeys_unsafe(TRUE);
-}
-
-void PerflibNamesRegistryInitialize(void) {
- spinlock_lock(&names_globals.spinlock);
- simple_hashtable_init_PERFLIB(&names_globals.hashtable, 20000);
- RegistryKeyModification(&names_globals.lastWriteTime);
- RegistryFetchAll_unsafe();
- spinlock_unlock(&names_globals.spinlock);
-}
-
-void PerflibNamesRegistryUpdate(void) {
- FILETIME lastWriteTime = { 0 };
- RegistryKeyModification(&lastWriteTime);
-
- if(CompareFileTime(&lastWriteTime, &names_globals.lastWriteTime) > 0) {
- spinlock_lock(&names_globals.spinlock);
- if(CompareFileTime(&lastWriteTime, &names_globals.lastWriteTime) > 0) {
- names_globals.lastWriteTime = lastWriteTime;
- RegistryFetchAll_unsafe();
- }
- spinlock_unlock(&names_globals.spinlock);
- }
-}
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