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Kernel: Implement multi-watch InodeWatcher :^)

This patch modifies InodeWatcher to switch to a one watcher, multiple
watches architecture.  The following changes have been made:

- The watch_file syscall is removed, and in its place the
  create_iwatcher, iwatcher_add_watch and iwatcher_remove_watch calls
  have been added.
- InodeWatcher now holds multiple WatchDescriptions for each file that
  is being watched.
- The InodeWatcher file descriptor can be read from to receive events on
  all watched files.

Co-authored-by: Gunnar Beutner <gunnar@beutner.name>
This commit is contained in:
sin-ack 2021-05-12 19:17:51 +00:00 committed by Andreas Kling
parent 2de11b0dc8
commit fe5ca6ca27
16 changed files with 521 additions and 262 deletions

View file

@ -109,6 +109,7 @@ public:
virtual bool is_block_device() const { return false; }
virtual bool is_character_device() const { return false; }
virtual bool is_socket() const { return false; }
virtual bool is_inode_watcher() const { return false; }
virtual FileBlockCondition& block_condition() { return m_block_condition; }