Add all extant virtual files to a list. Add an "exclusive owner" (`exc_owner`)

member to all virtual files.  Add a routine, H5FD_has_conflict(), that returns
true if a new virtual file is identical to an existing virtual file that has an
exclusive owner.  Establish an exclusive owner for a VFD SWMR virtual file's
lower virtual file.

Rename bsdqueue.h to H5queue.h and install it, since it's used by H5FDpublic.h.

This is part of a changeset that helps us avoid creating multiple H5F_shared_t
for one file when virtual datasets are used with VFD SWMR.  The old code for
deduplicating VFD SWMR H5F_shared_t instances did not work correctly with VFD
SWMR, so we'd end up with multiple H5F_shared_t all active on the same file.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/H5FDprivate.h b/src/H5FDprivate.h
index 9126371..4eeea36 100644
--- a/src/H5FDprivate.h
+++ b/src/H5FDprivate.h
@@ -317,6 +317,7 @@ H5_DLL herr_t H5FD_free_driver_info(hid_t driver_id, const void *driver_info);
 H5_DLL hid_t H5FD_register(const void *cls, size_t size, hbool_t app_ref);
 H5_DLL H5FD_t *H5FD_open(const char *name, unsigned flags, hid_t fapl_id,
 		  haddr_t maxaddr);
+bool H5FD_has_conflict(H5FD_t *);
 H5_DLL herr_t H5FD_close(H5FD_t *file);
 H5_DLL int H5FD_cmp(const H5FD_t *f1, const H5FD_t *f2);
 H5_DLL herr_t H5FD_driver_query(const H5FD_class_t *driver, unsigned long *flags/*out*/);