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globus_gass_transfer(3) Library Functions Manual globus_gass_transfer(3)

NAME

globus_gass_transfer - GASS Transfer API


- GASS Transfer API.

SYNOPSIS

Topics


Activation
Activation. Client-Initiated Operations
GASS Transfer Client Operations. Implementing Servers
GASS Server Implementation. Sending and Receiving Data
Sending and Receiving Data. Referrals
GASS Referrals. Request Handles
Request Handles. Request Attributes
Request Attributes. Listener attributes
Listener attributes. Implementing Request Attributes
Implementing Request Attributes. Protocol Modules
Protocol Implementation API.

Macros


#define GLOBUS_GASS_TRANSFER_LENGTH_UNKNOWN
#define GLOBUS_GASS_TRANSFER_TIMESTAMP_UNKNOWN

Enumerations


enum { GLOBUS_GASS_TRANSFER_ERROR_BAD_PORT = 2, GLOBUS_GASS_TRANSFER_ERROR_INTERNAL_ERROR, GLOBUS_GASS_TRANSFER_ERROR_BAD_URL, GLOBUS_GASS_TRANSFER_ERROR_NOT_SUPPORTED, GLOBUS_GASS_TRANSFER_ERROR_NOT_IMPLEMENTED, GLOBUS_GASS_TRANSFER_ERROR_MALLOC_FAILED, GLOBUS_GASS_TRANSFER_ERROR_NOT_INITIALIZED, GLOBUS_GASS_TRANSFER_ERROR_NULL_POINTER, GLOBUS_GASS_TRANSFER_ERROR_NOT_REGISTERED, GLOBUS_GASS_TRANSFER_ERROR_NOT_FOUND, GLOBUS_GASS_TRANSFER_ERROR_INVALID_USE, GLOBUS_GASS_TRANSFER_ERROR_TOO_LARGE, GLOBUS_GASS_TRANSFER_ERROR_REQUEST_FAILED, GLOBUS_GASS_TRANSFER_ERROR_DONE, GLOBUS_GASS_TRANSFER_ERROR_ALREADY_REGISTERED, GLOBUS_GASS_TRANSFER_ERROR_OPEN_FAILED, GLOBUS_GASS_TRANSFER_ERROR_TRANSFER_FAILED }
enum

Detailed Description

GASS Transfer API.

The GASS Transfer API is the core part of the GASS (Global Access to Secondary Storage) component of the Grid Community Toolkit. The purpose of GASS is to provide a simple way to enable grid applications to securely stage and access data to and from remote file servers using a simple protocol-independent API.

The GASS Transfer API provides a way to implement both client and server components. These share common data block and request management functionality. Client-specific functions are provided to implement file "get", "put", and "append" operations. Server-specific functions are provided to implement servers which service such requests. Client and server functionality can be included in a single application, so one could implement proxies or cross-protocol bridges.

The GASS Transfer API is easily extensible to support different remote data access protocols. The standard Globus distribution includes client-side support for the http, and https protocols, as well as server-side support for the http and https protocols. An application which requires additional protocol support may add this through the protocol module interface.

The GASS Transfer API is defined in the header file "globus_gass_transfer.h"

The GLOBUS_GASS_TRANSFER_MODULE must be activated before calling any functions in this API.

Macro Definition Documentation

#define GLOBUS_GASS_TRANSFER_LENGTH_UNKNOWN

Value for files we don't know the length of.

#define GLOBUS_GASS_TRANSFER_TIMESTAMP_UNKNOWN

Value for timestamps we don't know the value of.

Enumeration Type Documentation

anonymous enum

GASS error codes

Enumerator

Invalid port in URL
Something bad occurred while processing the request
Unparsable URL
Invalid file open mode in the GASS File library
Operation not supported by GASS for this type of URL
Out of memory
Uninitialized or invalid handle
NULL pointer passed as parameter
GASS Server not yet registered
URL not in cache
Invalid use of a GASS handle
Bytes array exceeds GASS request size
GASS Transfer request did not complete successfully
GASS handle already closed before this operation began
GASS handle already registered for processing
Could not open local file
A protocol error or client-initiated failure has occurred

anonymous enum

Default buffer length for the globus_gass_transfer_assist library.

Author

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Version 9.5 globus_gass_transfer