Tribblix: manual page: dat_provider

DAT_PROVIDER_INIT(3DAT) Direct Access Transport Library Functions

NAME

dat_provider_init - locate the Provider in the Static Registry

SYNOPSIS

cc [ flag... ] file... -ldat [ library... ]
#include <dat/udat.h>

void
dat_provider_init (
IN const DAT_PROVIDER_INFO *provider_info,
IN const char * instance_data
)

PARAMETERS

provider_info
The information that was provided by the Consumer to
locate the Provider in the Static Registry.

instance_data
The instance data string obtained from the entry
found in the Static Registry for the Provider.

DESCRIPTION

A constructor the Registry calls on a Provider before the first call
to dat_ia_open(3DAT) for a given IA name when the Provider is auto-
loaded. An application that explicitly loads a Provider on its own
can choose to use dat_provider_init() just as the Registry would have
done for an auto-loaded Provider.

The Provider's implementation of this method must call
dat_registry_add_provider(3DAT), using the IA name in the
provider_info.ia_name field, to register itself with the Dynamic
Registry. The implementation must not register other IA names at this
time. Otherwise, the Provider is free to perform any initialization
it finds useful within this method.

This method is called before the first call to dat_ia_open() for a
given IA name after one of the following has occurred:

o The Provider library was loaded into memory.

o The Registry called dat_provider_fini(3DAT) for that IA
name.

o The Provider called dat_registry_remove_provider(3DAT) for
that IA name (but it is still the Provider indicated in
the Static Registry).

If this method fails, it should ensure that it does not leave its
entry in the Dynamic Registry.

RETURN VALUES

No values are returned.