Reference/es_mb_savefile
Syntax
int es_mb_savebuffer( struct es_mb *db, const char *filen, unsigned bufsize, unsigned wmax );
Arguments
struct es_mb *db |
Database to be saved. |
const char *filen |
File path name prefix. |
unsigned bufsize |
Buffer size used in serializing database. |
unsigned wmax |
Maximum file size. |
Return Codes
ES_ERROR_NONE |
Success. No errors. |
ES_ERROR_FAILTOSAVE |
Failed to save. Check errno for any system errors. |
Description
es_mb_savefile is a wrapper function over es_mb_save() for serializing a database to a file.
bufsize is the size of the internal buffer used by es_mb_savefile in serializing the database.
es_mb_savefile creates multiple files on disk depending on the wmax parameter. Initially a file is created with the name filen as a prefix and "_0.mb" as a postfix. Once roughly wmax bytes have been written to disk a new file with the postfix "_1.mb" is created and es_mb_savefile continues to serialize to this new file. es_mb_savefile continues to create new files every wmax bytes until serialization is complete.
Set wmax to zero to force es_mb_savefile() to serialize the entire database to one file only.
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