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Bug#33748 my_getsystime, my_micro_time and my_micro_time_and_time broken on windows

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- Fix 'my_win_init' code that handles initialization of
   "query_performance_counter" and conversion from registry values to
   environment strings
This commit is contained in:
msvensson@pilot.mysql.com
2008-01-09 19:13:07 +01:00
parent e898b7943b
commit 76951b5534
1 changed files with 48 additions and 67 deletions
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115
mysys/my_init.c
View File

@ -30,7 +30,6 @@
#endif
my_bool have_tcpip=0;
static void my_win_init(void);
static my_bool win32_have_tcpip(void);
static my_bool win32_init_tcp_ip();
#else
#define my_win_init()
@ -233,29 +232,6 @@ Voluntary context switches %ld, Involuntary context switches %ld\n",
#ifdef __WIN__
/*
This code is specially for running MySQL, but it should work in
other cases too.
Inizializzazione delle variabili d'ambiente per Win a 32 bit.
Vengono inserite nelle variabili d'ambiente (utilizzando cosi'
le funzioni getenv e putenv) i valori presenti nelle chiavi
del file di registro:
HKEY_LOCAL_MACHINE\software\MySQL
Se la kiave non esiste nonn inserisce nessun valore
*/
/* Crea la stringa d'ambiente */
void setEnvString(char *ret, const char *name, const char *value)
{
DBUG_ENTER("setEnvString");
strxmov(ret, name,"=",value,NullS);
DBUG_VOID_RETURN ;
}
/*
my_parameter_handler
@ -305,17 +281,6 @@ int handle_rtc_failure(int err_type, const char *file, int line,
static void my_win_init(void)
{
HKEY hSoftMysql ;
DWORD dimName = 256 ;
DWORD dimData = 1024 ;
DWORD dimNameValueBuffer = 256 ;
DWORD dimDataValueBuffer = 1024 ;
DWORD indexValue = 0 ;
long retCodeEnumValue ;
char NameValueBuffer[256] ;
char DataValueBuffer[1024] ;
char EnvString[1271] ;
const char *targetKey = "Software\\MySQL" ;
DBUG_ENTER("my_win_init");
setlocale(LC_CTYPE, ""); /* To get right sortorder */
@ -343,43 +308,58 @@ static void my_win_init(void)
_tzset();
/* apre la chiave HKEY_LOCAL_MACHINES\software\MySQL */
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,(LPCTSTR)targetKey,0,
KEY_READ,&hSoftMysql) != ERROR_SUCCESS)
DBUG_VOID_RETURN;
/*
** Ne legge i valori e li inserisce nell'ambiente
** suppone che tutti i valori letti siano di tipo stringa + '\0'
** Legge il valore con indice 0 e lo scarta
*/
retCodeEnumValue = RegEnumValue(hSoftMysql, indexValue++,
(LPTSTR)NameValueBuffer, &dimNameValueBuffer,
NULL, NULL, (LPBYTE)DataValueBuffer,
&dimDataValueBuffer) ;
while (retCodeEnumValue != ERROR_NO_MORE_ITEMS)
{
char *my_env;
/* Crea la stringa d'ambiente */
setEnvString(EnvString, NameValueBuffer, DataValueBuffer) ;
/*
Open HKEY_LOCAL_MACHINE\SOFTWARE\MySQL and set any strings found
there as environment variables
*/
HKEY key_handle;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, (LPCTSTR)"SOFTWARE\\MySQL",
0, KEY_READ, &key_handle) == ERROR_SUCCESS)
{
LONG ret;
DWORD index= 0;
DWORD type;
char key_name[256], key_data[1024];
size_t key_name_len= sizeof(key_name) - 1;
size_t key_data_len= sizeof(key_data) - 1;
/* Inserisce i dati come variabili d'ambiente */
my_env=strdup(EnvString); /* variable for putenv must be allocated ! */
putenv(my_env) ;
while ((ret= RegEnumValue(key_handle, index++,
key_name, &key_name_len,
NULL, &type, (LPBYTE)&key_data,
&key_data_len)) != ERROR_NO_MORE_ITEMS)
{
char env_string[sizeof(key_name) + sizeof(key_data) + 2];
dimNameValueBuffer = dimName ;
dimDataValueBuffer = dimData ;
if (ret == ERROR_MORE_DATA)
{
/* Registry value larger than 'key_data', skip it */
DBUG_PRINT("error", ("Skipped registry value that was too large"));
}
else if (ret == ERROR_SUCCESS)
{
if (type == REG_SZ)
{
strxmov(env_string, key_name, "=", key_data, NullS);
retCodeEnumValue = RegEnumValue(hSoftMysql, indexValue++,
NameValueBuffer, &dimNameValueBuffer,
NULL, NULL, (LPBYTE)DataValueBuffer,
&dimDataValueBuffer) ;
/* variable for putenv must be allocated ! */
putenv(strdup(env_string)) ;
}
}
else
{
/* Unhandled error, break out of loop */
break;
}
key_name_len= sizeof(key_name) - 1;
key_data_len= sizeof(key_data) - 1;
}
RegCloseKey(key_handle) ;
}
}
/* chiude la chiave */
RegCloseKey(hSoftMysql) ;
/* The following is used by time functions */
#define OFFSET_TO_EPOC ((__int64) 134774 * 24 * 60 * 60 * 1000 * 1000 * 10)
#define MS 10000000
@ -387,7 +367,8 @@ static void my_win_init(void)
FILETIME ft;
LARGE_INTEGER li, t_cnt;
DBUG_ASSERT(sizeof(LARGE_INTEGER) == sizeof(query_performance_frequency));
if (QueryPerformanceFrequency((LARGE_INTEGER *)&query_performance_frequency))
if (QueryPerformanceFrequency((LARGE_INTEGER *)
&query_performance_frequency) == 0)
query_performance_frequency= 0;
else
{