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-rw-r--r--src/H5FDwindows.c158
1 files changed, 98 insertions, 60 deletions
diff --git a/src/H5FDwindows.c b/src/H5FDwindows.c
index bbae92c..912c721 100644
--- a/src/H5FDwindows.c
+++ b/src/H5FDwindows.c
@@ -139,11 +139,12 @@ static herr_t H5FD_windows_read(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, h
static herr_t H5FD_windows_write(H5FD_t *_file, H5FD_mem_t type, hid_t fapl_id, haddr_t addr,
size_t size, const void *buf);
static herr_t H5FD_windows_flush(H5FD_t *_file, hid_t dxpl_id, unsigned closing);
+static herr_t H5FD_windows_truncate(H5FD_t *_file, hid_t dxpl_id, hbool_t closing);
static const H5FD_class_t H5FD_windows_g = {
- "windows", /*name */
- MAXADDR, /*maxaddr */
- H5F_CLOSE_WEAK, /* fc_degree */
+ "windows", /*name */
+ MAXADDR, /*maxaddr */
+ H5F_CLOSE_WEAK, /* fc_degree */
NULL, /*sb_size */
NULL, /*sb_encode */
NULL, /*sb_decode */
@@ -154,22 +155,23 @@ static const H5FD_class_t H5FD_windows_g = {
0, /*dxpl_size */
NULL, /*dxpl_copy */
NULL, /*dxpl_free */
- H5FD_windows_open, /*open */
- H5FD_windows_close, /*close */
- H5FD_windows_cmp, /*cmp */
- H5FD_windows_query, /*query */
+ H5FD_windows_open, /*open */
+ H5FD_windows_close, /*close */
+ H5FD_windows_cmp, /*cmp */
+ H5FD_windows_query, /*query */
NULL, /*alloc */
NULL, /*free */
- H5FD_windows_get_eoa, /*get_eoa */
- H5FD_windows_set_eoa, /*set_eoa */
- H5FD_windows_get_eof, /*get_eof */
- H5FD_windows_get_handle,/*get_handle */
- H5FD_windows_read, /*read */
- H5FD_windows_write, /*write */
- H5FD_windows_flush, /*flush */
- NULL, /*lock */
- NULL, /*unlock */
- H5FD_FLMAP_SINGLE /*fl_map */
+ H5FD_windows_get_eoa, /*get_eoa */
+ H5FD_windows_set_eoa, /*set_eoa */
+ H5FD_windows_get_eof, /*get_eof */
+ H5FD_windows_get_handle, /*get_handle */
+ H5FD_windows_read, /*read */
+ H5FD_windows_write, /*write */
+ H5FD_windows_flush, /*flush */
+ H5FD_windows_truncate, /*truncate */
+ NULL, /*lock */
+ NULL, /*unlock */
+ H5FD_FLMAP_SINGLE /*fl_map */
};
/* Declare a free list to manage the H5FD_windows_t struct */
@@ -941,22 +943,20 @@ done:
FUNC_LEAVE_NOAPI(ret_value)
}
+
/*-------------------------------------------------------------------------
* Function: H5FD_windows_flush
*
* Purpose: Makes sure that the true file size is the same (or larger)
- * than the end-of-address.
+ * than the end-of-address.
*
* Return: Success: Non-negative
- *
- * Failure: Negative
+ * Failure: Negative
*
* Programmer: Scott Wegner
- * Based on code by Robb Matzke
+ * Based on code by Robb Matzke
* Thursday, May 24 2007
*
- * Modifications:
- *
*-------------------------------------------------------------------------
*/
/* ARGSUSED */
@@ -964,58 +964,96 @@ static herr_t
H5FD_windows_flush(H5FD_t *_file, hid_t UNUSED dxpl_id, unsigned closing)
{
H5FD_windows_t *file = (H5FD_windows_t*)_file;
- herr_t ret_value=SUCCEED; /* Return value */
-#ifndef WINDOWS_USE_STDIO
- LARGE_INTEGER li;
- HANDLE filehandle;
-#else
- int fd;
-#endif /* WINDOWS_USE_STDIO */
+ herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(H5FD_windows_flush, FAIL)
- assert(file);
+ HDassert(file);
+
+ /* Only try to flush if we have write access */
+ if(file->write_access) {
+ /* Flush */
+ if(!closing) {
+#ifdef WINDOWS_USE_STDIO
+ if(fflush(file->fp) == EOF)
+ HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "fflush failed")
+#endif /* WINDOWS_USE_STDIO */
+
+ /* Reset last file I/O information */
+ file->pos = HADDR_UNDEF;
+ file->op = OP_UNKNOWN;
+ } /* end if */
+ } /* end if */
- if (file->eoa != file->eof) {
+done:
+ FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5FD_windows_flush() */
+
+
+/*-------------------------------------------------------------------------
+ * Function: H5FD_windows_truncate
+ *
+ * Purpose: Makes sure that the true file size is the same (or larger)
+ * than the end-of-address.
+ *
+ * Return: Success: Non-negative
+ * Failure: Negative
+ *
+ * Programmer: Scott Wegner
+ * Based on code by Robb Matzke
+ * Thursday, May 24 2007
+ *
+ *-------------------------------------------------------------------------
+ */
+/* ARGSUSED */
+static herr_t
+H5FD_windows_truncate(H5FD_t *_file, hid_t UNUSED dxpl_id, hbool_t closing)
+{
+ H5FD_windows_t *file = (H5FD_windows_t*)_file;
#ifndef WINDOWS_USE_STDIO
+ LARGE_INTEGER li;
+ HANDLE filehandle;
+#else
+ int fd;
+#endif /* WINDOWS_USE_STDIO */
+ herr_t ret_value = SUCCEED; /* Return value */
- /* Extend the file to make sure it's large enough */
- if( (filehandle = (HANDLE)_get_osfhandle(file->fd)) == INVALID_HANDLE_VALUE)
- HGOTO_ERROR(H5E_FILE, H5E_FILEOPEN, FAIL, "unable to get file handle for file")
+ FUNC_ENTER_NOAPI(H5FD_windows_truncate, FAIL)
- li.QuadPart = (__int64)file->eoa;
- (void)SetFilePointer((HANDLE)filehandle,li.LowPart,&li.HighPart,FILE_BEGIN);
- if(SetEndOfFile(filehandle) == 0)
- HGOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to extend file properly")
+ HDassert(file);
+ if(file->eoa != file->eof) {
+#ifndef WINDOWS_USE_STDIO
+ /* Extend the file to make sure it's large enough */
+ if((filehandle = (HANDLE)_get_osfhandle(file->fd)) == INVALID_HANDLE_VALUE)
+ HGOTO_ERROR(H5E_FILE, H5E_FILEOPEN, FAIL, "unable to get file handle for file")
+
+ li.QuadPart = (__int64)file->eoa;
+ (void)SetFilePointer((HANDLE)filehandle, li.LowPart, &li.HighPart, FILE_BEGIN);
+ if(SetEndOfFile(filehandle) == 0)
+ HGOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to extend file properly")
#else /* WINDOWS_USE_STDIO */
- /* Only try to flush if we have write access */
- if(!file->write_access)
- HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "cannot flush without write access")
-
- if((fd = _fileno(file->fp)) == -1)
- HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to get file descriptor for file")
- if(_chsize_s(fd, file->eoa))
- HGOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to extend file properly")
-
- /* Flush */
- if(!closing)
- if (fflush(file->fp) == EOF)
- HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "fflush failed")
+ /* Only try to flush if we have write access */
+ if(!file->write_access)
+ HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "cannot flush without write access")
+
+ if((fd = _fileno(file->fp)) == -1)
+ HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to get file descriptor for file")
+ if(_chsize_s(fd, file->eoa))
+ HGOTO_ERROR(H5E_IO, H5E_SEEKERROR, FAIL, "unable to extend file properly")
#endif /* WINDOWS_USE_STDIO */
- /* Update the eof value */
- file->eof = file->eoa;
-
- /* Reset last file I/O information */
- file->pos = HADDR_UNDEF;
- file->op = OP_UNKNOWN;
+ /* Update the eof value */
+ file->eof = file->eoa;
- }
+ /* Reset last file I/O information */
+ file->pos = HADDR_UNDEF;
+ file->op = OP_UNKNOWN;
+ } /* end if */
done:
FUNC_LEAVE_NOAPI(ret_value)
-}
+} /* end H5FD_windows_truncate() */
#endif /* H5_HAVE_WINDOWS */