NAME

ACE_File_Lock - A wrapper around the UNIX file locking mechanism.

SYNOPSIS

#include <ace/Synch.h>

class ACE_File_Lock { public: ACE_File_Lock (ACE_HANDLE handle = ACE_INVALID_HANDLE); ACE_File_Lock (LPCTSTR filename, int flags, mode_t mode = 0); int open (LPCTSTR filename, int flags, mode_t mode = 0); ~ACE_File_Lock (void); int remove (void); int acquire (short whence = 0, off_t start = 0, off_t len = 1); int tryacquire (short whence = 0, off_t start = 0, off_t len = 1); int release (short whence = 0, off_t start = 0, off_t len = 1); int acquire_write ( short whence = 0, off_t start = 0, off_t len = 1 ); int tryacquire_write ( short whence = 0, off_t start = 0, off_t len = 1 ); int acquire_read ( short whence = 0, off_t start = 0, off_t len = 1 ); int tryacquire_read ( short whence = 0, off_t start = 0, off_t len = 1 ); ACE_HANDLE get_handle (void); void set_handle (ACE_HANDLE); void dump (void) const; ACE_ALLOC_HOOK_DECLARE; protected: ACE_OS::ace_flock_t lock_; private: void operator= (const ACE_File_Lock &); ACE_File_Lock (const ACE_File_Lock &); };

DESCRIPTION

Wrappers for various synchronization routines.

Prevent assignment and initialization.

void operator= (const ACE_File_Lock &);

ACE_File_Lock (const ACE_File_Lock &);

AUTHOR

Doug Schmidt

LIBRARY

ace