gfs_pio_truncate3
Truncate a file to a specified length
Usage
#include <gfarm/gfarm.h>
char *gfs_pio_truncate (GFS_File gf, file_offset_t length);
Overview
The gfs_pio_truncate() function truncates the regular file gf to the length bytes.
If the file was previously shorter than the length, it is extended, and the extended part is filled by zero bytes.
The file pointer is not changed.
You must specify GFS_FILE_MODE_WRITE in opening the file, because it must be open for writing.
Return values
NULL
|
The function terminated successfully. |
|---|---|
|
Insufficient memory was available. |
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An error except the above occurred. The reason is shown by its pointed strings. |
Releases
Unchanged in 2 releases since Debian 6.0 (Squeeze).