ESDM module registry that keeps track of available backends. More...

#include <esdm-internal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "backends-metadata/posix/md-posix.h"

Include dependency graph for esdm-modules.c:

Macros
#define	ESDM_HAS_MD_POSIX

#define	DEBUG_ENTER ESDM_DEBUG_COM_FMT("MODULES", "", "")

#define	DEBUG(fmt, ...) ESDM_DEBUG_COM_FMT("MODULES", fmt, __VA_ARGS__)

#define	ESDM_HAS_MONDODB

Functions
esdm_modules_t *	esdm_modules_init (esdm_instance_t *esdm)

esdm_status	esdm_modules_finalize (esdm_instance_t *esdm)

esdm_backend_t **	esdm_modules_makeBackendRecommendation (esdm_modules_t modules, esdm_dataspace_t space, int64_t out_backendCount, int64_t out_maxFragmentSize)

esdm_backend_t *	esdm_modules_randomWeightedBackend (esdm_modules_t *modules)

esdm_backend_t *	esdm_modules_fastestBackend (esdm_modules_t *modules)

esdm_status	esdm_modules_get_by_type (esdm_module_type_t type, esdm_module_type_array_t **array)

Detailed Description

ESDM module registry that keeps track of available backends.

Function Documentation

esdm_backend_t* esdm_modules_fastestBackend ( esdm_modules_t * modules )

Get a pointer to the backend with the highest estimated throughput.

esdm_backend_t** esdm_modules_makeBackendRecommendation	(	esdm_modules_t *	modules,
		esdm_dataspace_t *	space,
		int64_t *	out_moduleCount,
		int64_t *	out_maxFragmentSize
	)

Make a recommendation on which data backend to use to store data for the given dataspace.

Parameters

[in]	modules	usually esdm->modules
[in]	space	the dataspace for which the recommendation is to be made
[out]	out_moduleCount	returns the number of recommended backends
[out]	out_maxFragmentSize	a max fragment size that is suitable for use with all the recommended backends (optional, may be NULL)

Returns: a freshly allocated array of *out_moduleCount backend pointers, must be free'd by the caller