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ntdll: Use a pthread mutex for the drive info section. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-07-13 18:45:04 +02:00
parent 3b745f17b5
commit d7ef680e95
1 changed files with 3 additions and 2 deletions
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5
dlls/ntdll/unix/file.c
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@ -1871,13 +1871,14 @@ static NTSTATUS server_get_file_info( HANDLE handle, IO_STATUS_BLOCK *io, void *
/* retrieve device/inode number for all the drives */
static unsigned int get_drives_info( struct file_identity info[MAX_DOS_DRIVES] )
{
static pthread_mutex_t cache_mutex = PTHREAD_MUTEX_INITIALIZER;
static struct file_identity cache[MAX_DOS_DRIVES];
static time_t last_update;
static unsigned int nb_drives;
unsigned int ret;
time_t now = time(NULL);
RtlEnterCriticalSection( &dir_section );
pthread_mutex_lock( &cache_mutex );
if (now != last_update)
{
char *buffer, *p;
@ -1912,7 +1913,7 @@ static unsigned int get_drives_info( struct file_identity info[MAX_DOS_DRIVES] )
}
memcpy( info, cache, sizeof(cache) );
ret = nb_drives;
RtlLeaveCriticalSection( &dir_section );
pthread_mutex_unlock( &cache_mutex );
return ret;
}