diff options
author | Corinna Vinschen <corinna@vinschen.de> | 2008-03-24 17:48:58 +0300 |
---|---|---|
committer | Corinna Vinschen <corinna@vinschen.de> | 2008-03-24 17:48:58 +0300 |
commit | a998dd705576606f85e3598e5a38ea8d3805f798 (patch) | |
tree | 4c93e5acf920571b791af3f4ac4d5cf5829e6e1a /winsup/cygwin/fhandler.cc | |
parent | 88f0dc31d111c9f0ff4a888777a7f8afdc7bf295 (diff) |
* fhandler.cc (fhandler_base::dup): Drop setting flags in the parent.
Implement advisory file locking.
* cygheap.h (struct init_cygheap): Add inode_list member.
* cygwin.din (lockf): Export.
* dcrt0.cc (child_info_spawn::handle_spawn): Call
fixup_lockf_after_exec.
* dtable.h (class dtable): Add fhandler_disk_file as friend class.
* fhandler.cc (fhandler_base::close): Call del_my_locks if node is set.
(fhandler_base::fhandler_base): Initialize node to NULL.
(fhandler_base::fixup_after_fork): Ditto.
* fhandler.h (class fhandler_base): Add member node.
* fhandler_disk_file.cc (fhandler_disk_file::lock): Delete.
* flock.cc: Implement all advisory file locking here.
(fhandler_disk_file::lock): Implement here.
(flock): Call fcntl with F_FLOCK bit set. Remove test main function.
(lockf): New function.
* fork.cc (frok::child): Call fixup_lockf_after_fork.
* ntdll.h (DIRECTORY_ALL_ACCESS): Define.
(struct _OBJECT_BASIC_INFORMATION): Define.
(enum _EVENT_TYPE): Define.
(NtCreateDirectoryObject): Declare.
(NtCreateEvent): Declare.
(NtCreateMutant): Declare.
(NtOpenEvent): Declare.
(NtOpenMutant): Declare.
* include/cygwin/version.h: Bump API minor number.
Diffstat (limited to 'winsup/cygwin/fhandler.cc')
-rw-r--r-- | winsup/cygwin/fhandler.cc | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc index c283b3e3c..22afb63ac 100644 --- a/winsup/cygwin/fhandler.cc +++ b/winsup/cygwin/fhandler.cc @@ -1004,9 +1004,13 @@ fhandler_base::pwrite (void *, size_t, _off64_t) int fhandler_base::close () { + extern void del_my_locks (inode_t *); int res = -1; syscall_printf ("closing '%s' handle %p", get_name (), get_handle ()); + /* Delete all POSIX locks on the file. */ + if (node) + del_my_locks (node); if (nohandle () || CloseHandle (get_handle ())) res = 0; else @@ -1135,7 +1139,6 @@ fhandler_base::dup (fhandler_base *child) } if (get_overlapped ()) child->setup_overlapped (); - set_flags (child->get_flags ()); return 0; } @@ -1265,6 +1268,7 @@ fhandler_base::fhandler_base () : raixget (0), raixput (0), rabuflen (0), + node (NULL), fs_flags (0), archetype (NULL), usecount (0) @@ -1336,6 +1340,10 @@ fhandler_base::fixup_after_fork (HANDLE parent) fork_fixup (parent, io_handle, "io_handle"); if (get_overlapped ()) setup_overlapped (); + /* POSIX locks are not inherited across fork. The lock structures + are deleted globally in fixup_lockf_after_fork. Here we just + have to reset the pointer. */ + node = NULL; } void |