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Diffstat (limited to 'winsup/cygwin/ChangeLog')
| -rw-r--r-- | winsup/cygwin/ChangeLog | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 1fae68e9a..1e67bc4e6 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,91 @@ +2008-03-31 Corinna Vinschen <corinna@vinschen.de> + + * smallprint.cc (__small_vswprintf): Fix uninitialized usage of `w'. + + Revamp advisory file locking to avoid cross reference pointers as well + as to allow BSD flock semantics. More agressively delete unused nodes + and sync objects. + * fhandler.h (fhandler_base::ino): Rename from namehash. Fix comment. + (fhandler_base::node): Remove. + (fhandler_base::unique_id): Add. + (fhandler_base::del_my_locks): New method. + (get_ino): Rename from get_namehash. Change usage throughout Cygwin. + (get_unique_id): New method. + * fhandler.cc (fhandler_base::close): Call own del_my_locks method. + Fix comment. + (fhandler_base::fhandler_base): Accommodate new and changed members. + (fhandler_base::fixup_after_fork): Call del_my_locks. + (fhandler_base::fixup_after_exec): Ditto for files with close-on-exec + flag set. + * fhandler_disk_file.cc (get_ino_by_handle): Rename from + readdir_get_ino_by_handle. Accommodate throughout. + (fhandler_base::open_fs): Fill ino with inode number if FS has good + inodes. Allocate a LUID and store in unique_id to recognize file + descriptors referencing the same file object. + * flock.cc: Drop flock TODO comments. Use explicit types __dev32_t + and __ino64_t instead of dev_t and ino_t. + (LOCK_OBJ_NAME_LEN): Change to reflect longer lf_id length. + (get_obj_handle_count): New method. + (lockf_t::lf_id): Change type to long long. + (inode_t::get_lock_obj_handle_count): Drop in favor of static function + get_obj_handle_count. + (inode_t::del_locks): Remove. + (inode_t::get): Add create_if_missing flag argument. + (inode_t::del_my_locks): Reimplement to handle POSIX and BSD flock + locks. Return if node can be deleted or not. + (inode_t::~inode_t): Ditto. Close handles to i_dir and i_mtx. + (fixup_lockf_after_fork): Remove. + (fhandler_base::del_my_locks): New method. + (fixup_lockf_after_exec): Check if node can be deleted. + (inode_t::get): Only create node if create_if_missing is set. Lock + the returned node here before unlocking the node list. + (inode_t::get_all_locks_list): Accommodate new lf_id length. + (inode_t::create_lock_obj): Ditto. + (lockf_t::open_lock_obj): Ditto. Change return type to bool. De-const. + Set lf_obj instead of returning a handle. + (lockf_t::del_lock_obj): Call SetEvent only if new incoming parameters + allow it. Explain how it's supposed to work. + (fhandler_disk_file::lock): Only fetch file length in SEEK_END case. + Use NtQueryInformationFile(FileStandardInformation) instead of + calling fstat_by_handle. Always unlock node before returning. + Use fhandler's unique id to create lf_id for BSD flock locks. + Rely on node lock from inode_t::get. Call del_lock_obj on removed + locks here to allow explicit unlocking. Delete node if no lock exists + on the file anymore. + (lf_setlock): Get file handle as additional parameter. Handle the fact + that lf_getblock now always opens the attached event object. Reactivate + erroneously applied patch which deactivates setting thread priority. + Additionally handle blocking on BSD flock locks. + (lf_clearlock): Get file handle as additional parameter. + (lf_getlock): Close event handle opened by lf_getblock. + (lf_getblock): Open potentially blocking event object here and check + its signal state if it's a BSD flock lock. + (lf_wakelock): Get file handle as additional parameter. + * fork.cc (frok::child): Drop call to fixup_lockf_after_fork. + * ntdll.h (struct _EVENT_BASIC_INFORMATION): Define. + (enum _EVENT_INFORMATION_CLASS): Define. + (NtQueryEvent): Declare. + + * fhandler.h (fhandler_base::fs_flags): Remove. + (fhandler_base::set_fs_flags): Remove. + (fhandler_base::get_fs_flags): Remove. + * fhandler.cc (fhandler_base::write): Check for sparse file using + pc.fs_flags(). + * fhandler_disk_file.cc (fhandler_disk_file::ftruncate): Ditto. + + The return of the volume serial number in fs_info. + * fhandler.h (get_dev): New method. + * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Drop call to + NtQueryVolumeInformationFile(FileFsVolumeInformation). Just use + get_dev() method. + * fhandler_fifo.cc (fhandler_fifo::open) Use device ID and inode number + to generate fifo name. + * path.h (fs_info::sernum): New member. + (fs_info::serial_number): New method. + (path_conv::fs_serial_number): New method. + * path.cc (fs_info::update): Fetch volume serial number and store in + sernum. + 2008-03-28 Corinna Vinschen <corinna@vinschen.de> * flock.cc (lockf_t::operator new): Add operator taking a pointer. Call |