summaryrefslogtreecommitdiffstats
path: root/src/H5FDstream.c
diff options
context:
space:
mode:
authorQuincey Koziol <koziol@hdfgroup.org>2000-09-26 22:50:18 (GMT)
committerQuincey Koziol <koziol@hdfgroup.org>2000-09-26 22:50:18 (GMT)
commit183c8245af3a43d2f07845a0ac717f558afa3d1c (patch)
treeeaf1cdd565774fb008e9e6f836550caf7eb8d0c8 /src/H5FDstream.c
parent415e326afec0c6975a7b02fc77a72adcb8ba979e (diff)
downloadhdf5-183c8245af3a43d2f07845a0ac717f558afa3d1c.zip
hdf5-183c8245af3a43d2f07845a0ac717f558afa3d1c.tar.gz
hdf5-183c8245af3a43d2f07845a0ac717f558afa3d1c.tar.bz2
[svn-r2600] Purpose:
Implemented new feature Description: Added data sieve buffering code to raw I/O data path. This is enabled for all the VFL drivers except the mpio & core drivers. Also added two new API functions to control the sieve buffer size: H5Pset_sieve_buf_size() and H5Pget_sieve_buf_size(). Platforms tested: Solaris 2.6 (i.e. baldric)
Diffstat (limited to 'src/H5FDstream.c')
-rw-r--r--src/H5FDstream.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/src/H5FDstream.c b/src/H5FDstream.c
index cd0e6e6..ba07ae4 100644
--- a/src/H5FDstream.c
+++ b/src/H5FDstream.c
@@ -108,6 +108,7 @@ static H5FD_t *H5FD_stream_open (const char *name, unsigned flags,
hid_t fapl_id, haddr_t maxaddr);
static herr_t H5FD_stream_flush (H5FD_t *_stream);
static herr_t H5FD_stream_close (H5FD_t *_stream);
+static herr_t H5FD_stream_query(const H5FD_t *_f1, unsigned long *flags);
static haddr_t H5FD_stream_get_eoa (H5FD_t *_stream);
static herr_t H5FD_stream_set_eoa (H5FD_t *_stream, haddr_t addr);
static haddr_t H5FD_stream_get_eof (H5FD_t *_stream);
@@ -134,8 +135,8 @@ static const H5FD_class_t H5FD_stream_g =
NULL, /* dxpl_free */
H5FD_stream_open, /* open */
H5FD_stream_close, /* close */
- NULL, /* query */
NULL, /* cmp */
+ H5FD_stream_query, /*query */
NULL, /* alloc */
NULL, /* free */
H5FD_stream_get_eoa, /* get_eoa */
@@ -753,6 +754,39 @@ static herr_t H5FD_stream_close (H5FD_t *_stream)
/*-------------------------------------------------------------------------
+ * Function: H5FD_stream_query
+ *
+ * Purpose: Set the flags that this VFL driver is capable of supporting.
+ * (listed in H5FDpublic.h)
+ *
+ * Return: Success: non-negative
+ *
+ * Failure: negative
+ *
+ * Programmer: Quincey Koziol
+ * Tuesday, September 26, 2000
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5FD_stream_query(const UNUSED H5FD_t *_f, unsigned long *flags /* out */)
+{
+ herr_t ret_value=SUCCEED;
+
+ FUNC_ENTER(H5FD_stream_query, FAIL);
+
+ /* Set the VFL feature flags that this driver supports */
+ if(flags) {
+ *flags|=H5FD_FEAT_DATA_SIEVE; /* OK to perform data sieving for faster raw data reads & writes */
+ } /* end if */
+
+ FUNC_LEAVE(ret_value);
+}
+
+
+/*-------------------------------------------------------------------------
* Function: H5FD_stream_get_eoa
*
* Purpose: Gets the end-of-address marker for the file. The EOA marker