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gd_flush(3) | GETDATA | gd_flush(3) |
NAME¶
gd_flush — write all pending dirfile changes to disk.SYNOPSIS¶
#include <getdata.h>int
gd_flush(DIRFILE *dirfile, const char
*field_code);
DESCRIPTION¶
The gd_flush() function flushes and closes all file handles associated with field_code, or its input(s), in the dirfile specified by dirfile. If the field_code contains a valid representation suffix, it will be ignored. As a special case, if field_code is NULL, all fields in dirfile will be flushed and closed. In this special case, modified metadata will also be flushed to disk as if gd_metaflush(3) had been called. Metadata is written to disk using the current Standards Version as stored in the dirfile object. See gd_dirfile_standards(3) to change or report the current Standards Version. If the dirfile metadata conforms to no known Standards Version, a Standards non-compliant fragment will be written.RETURN VALUE¶
On success, zero is returned. On error, -1 is returned and the dirfile error is set to a non-zero error value. Possible error values are:- GD_E_BAD_CODE
- The field specified by field_code was not found in the database.
- GD_E_BAD_DIRFILE
- The supplied dirfile was invalid.
- GD_E_BAD_REPR
- The representation suffix specified in field_code was not recognised.
- GD_E_FLUSH
- A temporary file could not be opened into which to write the modified metadata, or renaming the temporary file over the original fragment failed. Only returned when field_code is NULL.
- GD_E_RAW_IO
- An error occurred while trying to flush or close the field(s).
SEE ALSO¶
gd_open(3), gd_close(3), gd_dirfile_standards(3), gd_error(3), gd_error_string(3), gd_metaflush(3)24 July 2010 | Version 0.7.0 |