Hi all
there is a Windows API function as
HANDLE CreateFile(
LPCTSTR lpFileName,
DWORD dwDesiredAccess,
DWORD dwShareMode,
LPSECURITY_ATTRIBUTES lpSecurityAttributes,
DWORD dwCreationDisposition,
DWORD dwFlagsAndAttributes,
HANDLE hTemplateFile
);
This function contains argument for share mode.. When I provide it 0 value then no other process can open/access the file already opened while created this call. That is while I have its handle opened if i try to access file through notepad.. it is restricted.
I need to have a similar working in Linux platform. I found two functions given in Linux which are fcntl() and flock() these two provides file locking facility in Linux. But I have tested it by opening a file and then locking it using fcntl() but then when i open the same file through editor or open() system call it is opened and locking is not functional . I need you people's help. I want to have a lock on the file that no process shall be able to open the file while is is locked. plz help me out and suggest me what i am missing.
Regards