/* Called from the main thread to start watching FILE in PARENT_DIR,
subject to FLAGS. If SUBDIRS is TRUE, watch the subdirectories of
PARENT_DIR as well. Value is a pointer to 'struct notification'
used by the thread that watches the changes. */
static struct notification *
add_watch (const char *parent_dir, const char *file, BOOL subdirs, DWORD flags)
{
HANDLE hdir;
struct notification *dirwatch = NULL;
if (!file)
return NULL;
hdir = CreateFile (parent_dir,
FILE_LIST_DIRECTORY,
/* FILE_SHARE_DELETE doesn't preclude other
processes from deleting files inside
parent_dir. */
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED,
NULL);
if (hdir == INVALID_HANDLE_VALUE)
return NULL;
if ((dirwatch = start_watching (file, hdir, subdirs, flags)) == NULL)
CloseHandle (hdir);
return dirwatch;
}
/* Called from the main thread to start watching FILE in PARENT_DIR,
subject to FLAGS. If SUBDIRS is TRUE, watch the subdirectories of
PARENT_DIR as well. Value is a pointer to 'struct notification'
used by the thread that watches the changes. */
static struct notification *
add_watch (const char *parent_dir, const char *file, BOOL subdirs, DWORD flags)
{
HANDLE hdir;
struct notification *dirwatch = NULL;
if (!file)
return NULL;
if (w32_unicode_filenames)
{
wchar_t dir_w[MAX_PATH], file_w[MAX_PATH];
filename_to_utf16 (parent_dir, dir_w);
if (*file)
filename_to_utf16 (file, file_w);
else
file_w[0] = 0;
hdir = CreateFileW (dir_w,
FILE_LIST_DIRECTORY,
/* FILE_SHARE_DELETE doesn't preclude other
processes from deleting files inside
parent_dir. */
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED,
NULL);
}
else
{
char dir_a[MAX_PATH], file_a[MAX_PATH];
filename_to_ansi (parent_dir, dir_a);
if (*file)
filename_to_ansi (file, file_a);
else
file_a[0] = '\0';
hdir = CreateFileA (dir_a,
FILE_LIST_DIRECTORY,
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE,
NULL, OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED,
NULL);
}
if (hdir == INVALID_HANDLE_VALUE)
return NULL;
if ((dirwatch = start_watching (file, hdir, subdirs, flags)) == NULL)
{
CloseHandle (hdir);
dirwatch->dir = NULL;
}
return dirwatch;
}
void TCP_RECEIVEOBJ::session_start(void)
{
if (watching) start_watching();
}
