md-posix.c File Reference

A metadata backend on top of a POSIX compatible filesystem. More...

#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <time.h>
#include "md-posix.h"
#include <esdm-internal.h>

Include dependency graph for md-posix.c:

Macros
#define	_GNU_SOURCE   /* See feature_test_macros(7) */
#define	DEBUG_ENTER   ESDM_DEBUG_COM_FMT("METADUMMY", "", "")
#define	DEBUG(fmt, ...)   ESDM_DEBUG_COM_FMT("METADUMMY", fmt, __VA_ARGS__)
#define	sprintfDatasetDir(path, d)   (sprintf(path, "%s/datasets/%c%c", tgt, d->id[0], d->id[1]))
#define	sprintfDatasetMd(path, d)   (sprintf(path, "%s/datasets/%c%c/%s.md", tgt, d->id[0], d->id[1], d->id + 2))

Functions
esdm_md_backend_t *	metadummy_backend_init (esdm_config_backend_t *config)

Detailed Description

A metadata backend on top of a POSIX compatible filesystem.

Function Documentation

metadummy_backend_init()

esdm_md_backend_t* metadummy_backend_init

(

esdm_config_backend_t *

config

)

Initializes the POSIX plugin. In particular this involves:

• Load configuration of this backend
• Load and potentially calibrate performance model
• Connect with support services e.g. for technical metadata
• Setup directory structures used by this POSIX specific backend
• Populate esdm_md_backend_t struct and callbacks required for registration

Takes possession of the config argument. Pass a malloc()ed object.

Returns

pointer to backend struct