[svn-r6387] Purpose:

    Bug Fix

Description:
    Metadata cache in parallel I/O can cause hangs in applications which
    perform independent I/O on chunked datasets, because the metadata cache
    can attempt to flush out dirty metadata from only a single process, instead
    of collectively from all processes.

Solution:
    Pass a dataset transfer property list down from every API function which
    could possibly trigger metadata I/O.

    Then, split the metadata cache into two sets of entries to allow dirty
    metadata to be set aside when a hash table collision occurs during
    independent I/O.

Platforms tested:
    Tested h5committest {arabica (fortran), eirene (fortran, C++)
        modi4 (parallel, fortran)}

    FreeBSD 4.7 (sleipnir) serial & parallel

Misc. update:
    Updated release_docs/RELEASE

1 files changed, 5 insertions, 5 deletions

diff --git a/src/H5FDprivate.h b/src/H5FDprivate.h
index 187af34..f64eecb 100644
--- a/src/H5FDprivate.h
+++ b/src/H5FDprivate.h
@@ -20,16 +20,16 @@ H5_DLL herr_t H5FD_sb_decode(H5FD_t *file, const char *name, const uint8_t *buf)
 H5_DLL void *H5FD_fapl_get(H5FD_t *file);
 H5_DLL void *H5FD_fapl_copy(hid_t driver_id, const void *fapl);
 H5_DLL herr_t H5FD_fapl_free(hid_t driver_id, void *fapl);
-H5_DLL void *H5FD_dxpl_copy(hid_t driver_id, const void *dxpl);
+H5_DLL herr_t H5FD_dxpl_copy(hid_t driver_id, const void *dxpl, void **copied_dxpl);
 H5_DLL herr_t H5FD_dxpl_free(hid_t driver_id, void *dxpl);
 H5_DLL H5FD_t *H5FD_open(const char *name, unsigned flags, hid_t fapl_id,
 		  haddr_t maxaddr);
 H5_DLL herr_t H5FD_close(H5FD_t *file);
 H5_DLL int H5FD_cmp(const H5FD_t *f1, const H5FD_t *f2);
 H5_DLL int H5FD_query(const H5FD_t *f, unsigned long *flags/*out*/);
-H5_DLL haddr_t H5FD_alloc(H5FD_t *file, H5FD_mem_t type, hsize_t size);
-H5_DLL herr_t H5FD_free(H5FD_t *file, H5FD_mem_t type, haddr_t addr, hsize_t size);
-H5_DLL haddr_t H5FD_realloc(H5FD_t *file, H5FD_mem_t type, haddr_t old_addr,
+H5_DLL haddr_t H5FD_alloc(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, hsize_t size);
+H5_DLL herr_t H5FD_free(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, haddr_t addr, hsize_t size);
+H5_DLL haddr_t H5FD_realloc(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, haddr_t old_addr,
 		     hsize_t old_size, hsize_t new_size);
 H5_DLL haddr_t H5FD_get_eoa(H5FD_t *file);
 H5_DLL herr_t H5FD_set_eoa(H5FD_t *file, haddr_t addr);
@@ -38,7 +38,7 @@ H5_DLL herr_t H5FD_read(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, haddr_t ad
 		 void *buf/*out*/);
 H5_DLL herr_t H5FD_write(H5FD_t *file, H5FD_mem_t type, hid_t dxpl_id, haddr_t addr, size_t size,
 		  const void *buf);
-H5_DLL herr_t H5FD_flush(H5FD_t *file, unsigned closing);
+H5_DLL herr_t H5FD_flush(H5FD_t *file, hid_t dxpl_id, unsigned closing);
 H5_DLL herr_t H5FD_get_fileno(const H5FD_t *file, unsigned long *filenum);
 H5_DLL herr_t H5FD_get_vfd_handle(H5FD_t *file, hid_t fapl, void** file_handle);