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authorDavi Arnaut <davi.arnaut@oracle.com>2010-12-15 18:00:54 -0200
committerDavi Arnaut <davi.arnaut@oracle.com>2010-12-15 18:00:54 -0200
commit7941c7eaafdd1b69ff2752ed1fa426f0772dd104 (patch)
treef75060207a4df6e4d6b36b803f00cfac0d90dc3e /mysys
parentac665ecf065d8a2a79e95fcfcfa3caad2ea62527 (diff)
downloadmariadb-git-7941c7eaafdd1b69ff2752ed1fa426f0772dd104.tar.gz
Cleanup my_win_init by moving time and registry related
initialization to specific functions. Also, remove a large block of white space. There shouldn't be any functional change.
Diffstat (limited to 'mysys')
-rw-r--r--mysys/my_init.c194
1 files changed, 91 insertions, 103 deletions
diff --git a/mysys/my_init.c b/mysys/my_init.c
index e3b189c27bb..ab6ffef7ac7 100644
--- a/mysys/my_init.c
+++ b/mysys/my_init.c
@@ -311,6 +311,89 @@ int handle_rtc_failure(int err_type, const char *file, int line,
#pragma runtime_checks("", restore)
#endif
+#define OFFSET_TO_EPOC ((__int64) 134774 * 24 * 60 * 60 * 1000 * 1000 * 10)
+#define MS 10000000
+
+static void win_init_time(void)
+{
+ /* The following is used by time functions */
+ FILETIME ft;
+ LARGE_INTEGER li, t_cnt;
+
+ DBUG_ASSERT(sizeof(LARGE_INTEGER) == sizeof(query_performance_frequency));
+
+ if (QueryPerformanceFrequency((LARGE_INTEGER *)&query_performance_frequency) == 0)
+ query_performance_frequency= 0;
+ else
+ {
+ GetSystemTimeAsFileTime(&ft);
+ li.LowPart= ft.dwLowDateTime;
+ li.HighPart= ft.dwHighDateTime;
+ query_performance_offset= li.QuadPart-OFFSET_TO_EPOC;
+ QueryPerformanceCounter(&t_cnt);
+ query_performance_offset-= (t_cnt.QuadPart /
+ query_performance_frequency * MS +
+ t_cnt.QuadPart %
+ query_performance_frequency * MS /
+ query_performance_frequency);
+ }
+}
+
+
+/*
+ Open HKEY_LOCAL_MACHINE\SOFTWARE\MySQL and set any strings found
+ there as environment variables
+*/
+static void win_init_registry(void)
+{
+ 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];
+ DWORD key_name_len= sizeof(key_name) - 1;
+ DWORD key_data_len= sizeof(key_data) - 1;
+
+ 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];
+
+ 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);
+
+ /* 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);
+ }
+}
+
static void my_win_init(void)
{
@@ -318,17 +401,18 @@ static void my_win_init(void)
#if defined(_MSC_VER)
#if _MSC_VER < 1300
- /*
+ /*
Clear the OS system variable TZ and avoid the 100% CPU usage
Only for old versions of Visual C++
*/
- _putenv( "TZ=" );
-#endif
+ _putenv("TZ=");
+#endif
#if _MSC_VER >= 1400
/* this is required to make crt functions return -1 appropriately */
_set_invalid_parameter_handler(my_parameter_handler);
#endif
-#endif
+#endif
+
#ifdef __MSVC_RUNTIME_CHECKS
/*
Install handler to send RTC (Runtime Error Check) warnings
@@ -339,106 +423,10 @@ static void my_win_init(void)
_tzset();
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- /* The following is used by time functions */
-#define OFFSET_TO_EPOC ((__int64) 134774 * 24 * 60 * 60 * 1000 * 1000 * 10)
-#define MS 10000000
- {
- FILETIME ft;
- LARGE_INTEGER li, t_cnt;
- DBUG_ASSERT(sizeof(LARGE_INTEGER) == sizeof(query_performance_frequency));
- if (QueryPerformanceFrequency((LARGE_INTEGER *)&query_performance_frequency) == 0)
- query_performance_frequency= 0;
- else
- {
- GetSystemTimeAsFileTime(&ft);
- li.LowPart= ft.dwLowDateTime;
- li.HighPart= ft.dwHighDateTime;
- query_performance_offset= li.QuadPart-OFFSET_TO_EPOC;
- QueryPerformanceCounter(&t_cnt);
- query_performance_offset-= (t_cnt.QuadPart /
- query_performance_frequency * MS +
- t_cnt.QuadPart %
- query_performance_frequency * MS /
- query_performance_frequency);
- }
- }
+ win_init_time();
+ win_init_registry();
- {
- /*
- 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];
- DWORD key_name_len= sizeof(key_name) - 1;
- DWORD key_data_len= sizeof(key_data) - 1;
-
- 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];
-
- 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);
-
- /* 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) ;
- }
- }
- DBUG_VOID_RETURN ;
+ DBUG_VOID_RETURN;
}