Provided by: libglobus-ftp-control-doc_4.7-1_all 
NAME
globus_ftp_control.h -
SYNOPSIS
Data Structures
struct globus_ftp_control_dcau_subject_s
struct globus_ftp_control_round_robin_s
union globus_ftp_control_dcau_u
union globus_ftp_control_layout_u
union globus_ftp_control_parallelism_u
struct globus_ftp_control_tcpbuffer_default_t
struct globus_ftp_control_tcpbuffer_fixed_t
struct globus_ftp_control_tcpbuffer_automatic_s
union globus_ftp_control_tcpbuffer_t
struct globus_ftp_control_auth_info_s
Macros
#define GLOBUS_FTP_CONTROL_MODULE (&globus_i_ftp_control_module)
Typedefs
typedef enum
globus_ftp_control_type_e globus_ftp_control_type_t"
typedef enum
globus_ftp_control_mode_e globus_ftp_control_mode_t"
typedef enum
globus_ftp_control_dcau_mode_e globus_ftp_control_dcau_mode_t"
typedef struct
globus_ftp_control_dcau_subject_s globus_ftp_control_dcau_subject_t"
typedef enum
globus_ftp_control_striping_mode_e globus_ftp_control_striping_mode_t"
typedef struct
globus_ftp_control_round_robin_s globus_ftp_control_round_robin_t"
typedef union
globus_ftp_control_dcau_u globus_ftp_control_dcau_t"
typedef union
globus_ftp_control_layout_u globus_ftp_control_layout_t"
typedef enum
globus_ftp_control_structure_e globus_ftp_control_structure_t"
typedef enum
globus_ftp_control_parallelism_mode_e globus_ftp_control_parallelism_mode_t"
typedef union
globus_ftp_control_parallelism_u globus_ftp_control_parallelism_t"
typedef enum
globus_ftp_control_tcpbuffer_mode_e globus_ftp_control_tcpbuffer_mode_t"
typedef struct
globus_ftp_control_tcpbuffer_automatic_s globus_ftp_control_tcpbuffer_automatic_t"
typedef union
globus_ftp_control_tcpbuffer_t globus_ftp_control_tcpbuffer_t"
typedef struct
globus_ftp_control_auth_info_s globus_ftp_control_auth_info_t"
typedef void(* globus_ftp_control_response_callback_t )(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error,
globus_ftp_control_response_t *ftp_response)
typedef void(* globus_ftp_control_callback_t )(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error)
typedef void(* globus_ftp_control_command_callback_t )(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error, union
globus_ftp_control_command_u *command)
typedef void(* globus_ftp_control_auth_callback_t )(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error,
globus_ftp_control_auth_info_t *auth_result)
typedef unsigned long globus_ftp_control_auth_requirements_t
typedef void(* globus_ftp_control_data_callback_t )(void *callback_arg,
globus_ftp_control_handle_t *handle, globus_object_t *error, globus_byte_t *buffer,
globus_size_t length, globus_off_t offset, globus_bool_t eof)
typedef void(* globus_ftp_control_server_callback_t )(void *callback_arg, struct
globus_ftp_control_server_s *server_handle, globus_object_t *error)
Enumerations
enum globus_ftp_control_type_e
enum globus_ftp_control_mode_e
enum globus_ftp_control_dcau_mode_e
enum globus_ftp_control_striping_mode_e
enum globus_ftp_control_protection_t
enum globus_ftp_control_delay_passive_t
enum globus_ftp_control_structure_e
enum globus_ftp_control_parallelism_mode_e
enum globus_ftp_control_tcpbuffer_mode_e { GLOBUS_FTP_CONTROL_TCPBUFFER_DEFAULT,
GLOBUS_FTP_CONTROL_TCPBUFFER_FIXED, GLOBUS_FTP_CONTROL_TCPBUFFER_AUTOMATIC }
Functions
globus_result_t globus_ftp_control_local_layout (globus_ftp_control_handle_t *handle,
globus_ftp_control_layout_t *layout, globus_size_t data_size)
globus_result_t globus_ftp_control_data_set_interface (globus_ftp_control_handle_t
*handle, const char *interface_addr)
globus_result_t globus_ftp_control_create_data_info (globus_ftp_control_handle_t *handle,
globus_ftp_control_data_write_info_t *data_info, globus_byte_t *buffer, globus_size_t
length, globus_off_t offset, globus_bool_t eof, globus_ftp_control_data_callback_t
callback, void *callback_arg)
globus_result_t globus_ftp_control_release_data_info (globus_ftp_control_handle_t *handle,
globus_ftp_control_data_write_info_t *data_info)
globus_result_t globus_ftp_control_data_write_stripe (globus_ftp_control_handle_t *handle,
globus_byte_t *buffer, globus_size_t length, globus_off_t offset, globus_bool_t eof,
int stripe_ndx, globus_ftp_control_data_callback_t callback, void *callback_arg)
globus_result_t globus_X_ftp_control_data_write_stripe (globus_ftp_control_handle_t
*handle, globus_byte_t *buffer, globus_size_t length, globus_off_t offset,
globus_bool_t eof, int stripe_ndx, globus_ftp_control_data_write_info_t *data_info)
Detailed Description
GSIFTP Control Connection API (Data structures and types)
Macro Definition Documentation
#define GLOBUS_FTP_CONTROL_MODULE (&globus_i_ftp_control_module)
Module descriptor. The Globus FTP Control library uses the standard module activation and
deactivation API to initialize it's state. Before any GSIFTP functions are called, the
module must be activated
* globus_module_activate(GLOBUS_GSIFTP_CONTROL_MODULE);
*
This function returns GLOBUS_SUCCESS if the GSIFTP library was successfully initialized.
This may be called multiple times.
To deactivate the GSIFTP library, the following must be called
* globus_module_deactivate(GLOBUS_GSIFTP_CONTROL_MODULE);
*
Typedef Documentation
typedef enum globus_ftp_control_type_e globus_ftp_control_type_t
control structure types. The enumeration values match the character value of the argument
to TYPE.
typedef enum globus_ftp_control_mode_e globus_ftp_control_mode_t
control structure mode
typedef enum globus_ftp_control_dcau_mode_e globus_ftp_control_dcau_mode_t
control dcau types
typedef struct globus_ftp_control_dcau_subject_s globus_ftp_control_dcau_subject_t
control dcau subject authentication type
typedef enum globus_ftp_control_striping_mode_e globus_ftp_control_striping_mode_t
control striping Types
typedef struct globus_ftp_control_round_robin_s globus_ftp_control_round_robin_t
control striping round robin attribute structure
typedef union globus_ftp_control_dcau_u globus_ftp_control_dcau_t
control dcau union
typedef union globus_ftp_control_layout_u globus_ftp_control_layout_t
control striping attribute union
typedef enum globus_ftp_control_structure_e globus_ftp_control_structure_t
control structure structure
typedef enum globus_ftp_control_parallelism_mode_e globus_ftp_control_parallelism_mode_t
control parallelism Types
typedef union globus_ftp_control_parallelism_u globus_ftp_control_parallelism_t
control parallelism attribute structure
typedef enum globus_ftp_control_tcpbuffer_mode_e globus_ftp_control_tcpbuffer_mode_t
TCP Buffer Setting Modes.
typedef struct globus_ftp_control_tcpbuffer_automatic_s
globus_ftp_control_tcpbuffer_automatic_t
Automatically set the TCP buffer/window size.
typedef union globus_ftp_control_tcpbuffer_t globus_ftp_control_tcpbuffer_t
control tcpbuffer attribute structure
typedef struct globus_ftp_control_auth_info_s
globus_ftp_control_auth_info_t"
Authentication Values. This structure is populated and passed back to the user via the
globus_ftp_control_auth_callback_t(). It contains the information needed to decide if a
client may use the server.
typedef void(* globus_ftp_control_response_callback_t)(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error, globus_ftp_control_response_t
*ftp_response)
Asynchronous operation completion callback. This callback is called whenever a reply to
command is received on the FTP control channel. It allows the user to handle the received
reply or alternatively handle any errors that occurred during the interaction with the FTP
server. This function will be called multiple times in the case when intermediate
responses (1yz) are received.
Parameters:
callback_arg User supplied argument to the callback function
handle A pointer to the GSIFTP control handle. Used to identify which control
connection the operation was applied to.
error Pointer to a globus error object containing information about any errors that
occurred processing the operation
ftp_response Pointer to a response structure containing the FTP response to the
command.
typedef void(* globus_ftp_control_callback_t)(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error)
Asynchronous control callback. This callback is used as a generic control operation
callback.
Parameters:
callback_arg User supplied argument to the callback function
handle A pointer to the GSIFTP control handle. Used to identify which control
connection the operation was applied to.
error Pointer to a globus error object containing information about any errors that
occurred processing the operation
typedef void(* globus_ftp_control_command_callback_t)(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error, union
globus_ftp_control_command_u *command)
Server command callback. When a command from a client is received on the control channel a
user callback with this signature is called.
Parameters:
callback_arg The user argument passed to the callback function.
handle The control handle that the command was issued on.
error Indicates if a command was successful read or or if a failure occurred. This
object will be freed once this callback returns. If the user wishes to have a copy of
the error that persists past the life of this callback, they must make a copy using
globus_object_copy(), and free it with globus_object_free().
command The command structure indicates what type of command the client issued. Based
on the 'type' further information can be extracted. This command structure will be
freed once this callback returns. If the user wishes to have a copy of the error that
persists past the life of this callback, they must make a copy using
globus_ftp_control_command_copy(), and free it with globus_ftp_control_command_free().
typedef void(* globus_ftp_control_auth_callback_t)(void *callback_arg, struct
globus_ftp_control_handle_s *handle, globus_object_t *error,
globus_ftp_control_auth_info_t *auth_result)
Server authentication complete callback. A function with this signature is registered by
calling globus_ftp_control_accept(). It is called when the authentication protocal has
completed. Based on the auth_result, the server implementor should determine authorization
and then send the appropriate response using globus_ftp_control_send_response(),
indicating to the client whether authorization was successful or not.
Parameters:
handle This structure is populated when the callback is called and represents a
control connection to the client.
auth_result A globus_ftp_control_auth_result_t containing the values the client sent
for gss authentication, user name, password and account. If any of the values were not
sent by the client they will be NULL. Based on that information the user can decide if
the client will be authorized for use of the server.
callback_arg The user argument passed to the callback.
typedef unsigned long globus_ftp_control_auth_requirements_t
Authentication requirements. The value of this should be a bitwise or of
• GLOBUS_FTP_CONTROL_AUTH_NONE
• GLOBUS_FTP_CONTROL_AUTH_GSSAPI
• GLOBUS_FTP_CONTROL_AUTH_USER
• GLOBUS_FTP_CONTROL_AUTH_PASS
• GLOBUS_FTP_CONTROL_AUTH_ACCT
typedef void(* globus_ftp_control_data_callback_t)(void *callback_arg,
globus_ftp_control_handle_t *handle, globus_object_t *error, globus_byte_t *buffer,
globus_size_t length, globus_off_t offset, globus_bool_t eof)
Asynchronous data transmission operation callback. This callback is called in functions
that send or receive data on the data channel(s).
In the case of a write, this function is invoked when the entire data buffer is sent.
Depending on the data transfer properties set by the globus_ftp_control_local_*()
functions, the data may actually be split into multiple buffers and sent to multiple data
nodes.
In the case of a read, this function will return a single extent of the data. The order of
the data returned is not defined in an extended block mode data transfer. It is up to the
user of the API to re-construct the file order.
Parameters:
callback_arg User supplied argument to the callback function
handle A pointer to the GSIFTP control handle. Used to identify which control
connection the operation was applied to.
error Pointer to a globus error object containing information about any errors that
occurred processing the operation
buffer The user buffer passed as a parameter to globus_ftp_control_data_read() or
globus_ftp_control_data_write().
length The amount of data in the buffer. In the case of an incoming data channel, this
may be less than the buffer size.
offset The file offset of the data which is contained in the buffer.
eof This is set to GLOBUS_TRUE then all of the data associated with the transfer has
arrived on the data connections associated with this handle. If multiple data
callbacks are registered with this handle, there is no guaranteed order of the EOF
callback with respect to other data callbacks. If multiple callbacks are registered
when EOF is reached on the data connections, at least one callback function will be
called with eof set to GLOBUS_TRUE.
typedef void(* globus_ftp_control_server_callback_t)(void *callback_arg, struct
globus_ftp_control_server_s *server_handle, globus_object_t *error)
Server callback. A functions with this signature can be used as general callbacks for the
GSIFTP server API.
Parameters:
server_handle The server handle associated with callback.
result Indicates if the operation completed successfully or if a failure occurred.
callback_arg The user argument passed to the callback function.
Enumeration Type Documentation
enum globus_ftp_control_type_e
control structure types. The enumeration values match the character value of the argument
to TYPE.
enum globus_ftp_control_mode_e
control structure mode
enum globus_ftp_control_dcau_mode_e
control dcau types
enum globus_ftp_control_striping_mode_e
control striping Types
enum globus_ftp_control_protection_t
control protection levels
enum globus_ftp_control_delay_passive_t
delayed passive flags
enum globus_ftp_control_structure_e
control structure structure
enum globus_ftp_control_parallelism_mode_e
control parallelism Types
enum globus_ftp_control_tcpbuffer_mode_e
TCP Buffer Setting Modes.
Enumerator
GLOBUS_FTP_CONTROL_TCPBUFFER_DEFAULT
Don't change the TCP buffer/window size from the system default.
GLOBUS_FTP_CONTROL_TCPBUFFER_FIXED
Set the TCP buffer/window size to a fixed value.
GLOBUS_FTP_CONTROL_TCPBUFFER_AUTOMATIC
Automatically set the TCP buffer/window size.
Function Documentation
globus_result_t globus_ftp_control_local_layout (globus_ftp_control_handle_t *handle,
globus_ftp_control_layout_t *layout, globus_size_tdata_size)
Update the handle with the layout and the size of the data sent over the data channel.
This function is deprecated. The interface will be the changed to that of
globus_X_ftp_control_local_layout()
Parameters:
handle A pointer to the FTP control handle into which to insert the layout
information.
layout A variable containing the layout information
data_size The size of the data that is going to be sent. This may be needed to
interpret the layout information.
References GLOBUS_FTP_CONTROL_MODULE.
globus_result_t globus_ftp_control_data_set_interface (globus_ftp_control_handle_t *handle,
const char *interface_addr)
Create an outgoing FTP data connection. This function sets the interface that will be used
to send and receive information along the data channel.
Parameters:
handle A pointer to a FTP control handle which is configured to create an outgoing
data connection.
interface_addr
References GLOBUS_FTP_CONTROL_MODULE.
globus_result_t globus_ftp_control_create_data_info (globus_ftp_control_handle_t *handle,
globus_ftp_control_data_write_info_t *data_info, globus_byte_t *buffer,
globus_size_tlength, globus_off_toffset, globus_bool_teof,
globus_ftp_control_data_callback_tcallback, void *callback_arg)
Create a globus_ftp_control_data_write_info_t structure. This funciton populates a
globus_ftp_control_data_callback_t structure with valid information. This structure
provides the user a way to register several data writes with a single callback. This is
quite useful to the writter of enqueue functions. It allows a single call to
globus_ftp_control_data_write() to be broken up into many writes, potentially on different
stripes, and for a single callback to be called when all are finished.
Parameters:
handle A pointer to a FTP control handle. The handle contains information about the
current state of the control and data connections.
data_info The globus_ftp_control_data_write_info_t structure to be released.
buffer The pointer to the user buffer that will be passed to the callback argument
when there are zero references to data_info. This is intended to be the start of all
the data the user intends to write using globus_ftp_control_data_write_stripe(), but
it does not have to be.
length The length of the memory segment pointed to by the argument buffer.
offset The file offset of the data segment specified.
eof This should be set to true if the user plans on registering eof on the data_info
structure.
callback The user function to be called when all references to data_info are released.
This occurs after all data registered for write from
globus_ftp_control_data_write_stripe have occured and the user calls
globus_ftp_control_release_data_info(). The callback is passed all of the arguments
passed to this function with the exception of data_info.
callback_arg User supplied argument to the callback function
References GLOBUS_FTP_CONTROL_MODULE.
globus_result_t globus_ftp_control_release_data_info (globus_ftp_control_handle_t *handle,
globus_ftp_control_data_write_info_t *data_info)
Release a data_info structure. This function releases all memory and references created
when a call to globus_ftp_control_create_data_info() was made. For every call to
globus_ftp_control_create_data_info() a call to this function must be made.
Parameters:
handle A pointer to a FTP control handle. The handle contains information about the
current state of the control and data connections.
data_info The globus_ftp_control_data_write_info_t structure to be released.
References GLOBUS_FTP_CONTROL_MODULE.
globus_result_t globus_ftp_control_data_write_stripe (globus_ftp_control_handle_t *handle,
globus_byte_t *buffer, globus_size_tlength, globus_off_toffset, globus_bool_teof,
intstripe_ndx, globus_ftp_control_data_callback_tcallback, void *callback_arg)
Write FTP data to a particular stripe. This function allows the user to write to a
specified stripe. The stripe index relates to the order passsed into local_spor(). This
function differs from globus_ftp_control_data_write() in that no enqueue function is
needed since the user specifies the stripe on which data is written. In order to use this
function the user must have a valid pointer to a globus_ftp_control_data_write_info_t
structure. The data_info structure can be obtained by a call to
globus_ftp_control_create_data_info(). Many calls to this function can be made, but only a
single user callback occurs per creation of a globus_ftp_control_data_write_info_t
structure.
Parameters:
handle A pointer to a FTP control handle. The handle contains information about the
current state of the control and data connections.
buffer a pointer to the data the user wishes to send along the FTP data channels.
length the length of the data pointer to by the parameter buffer.
offset the offset into the file of the data.
eof A boolean stating that this will be the last chuck of data registered on the given
stripe. In order to properly send an eof message the user must register an eof on
every stripe.
stripe_ndx The index of the stripe on which the data will be sent. The index of each
stripe is determined by the call to local_spas or local_spor.
callback The function to be called once the data has been sent
callback_arg User supplied argument to the callback function
References GLOBUS_FTP_CONTROL_MODULE.
globus_result_t globus_X_ftp_control_data_write_stripe (globus_ftp_control_handle_t *handle,
globus_byte_t *buffer, globus_size_tlength, globus_off_toffset, globus_bool_teof,
intstripe_ndx, globus_ftp_control_data_write_info_t *data_info)
Write data on a specific stripe from an enqueue callback function only. This function
allows the user to register the write of ftp data on a specfic stripe. This function can
only be called fromed an enqueue function callback. This function should be used only by
the implementor of an enqueue funciton. It should be viewed as unstable and used used only
by advanced users. This is the only function in the library that the enqueue function
implemtor is allowed from the enqueue callback.
Parameters:
handle A pointer to a FTP control handle. The handle contains information about the
current state of the control and data connections.
buffer a pointer to the data the user wishes to send along the FTP data channels.
length the length of the data pointer to by the parameter buffer.
offset the offset into the file of the data.
eof a boolean stating that this is the last buffer to be registered. When using the X
version of this function the user does not need to register an eof on each stripe, the
control library will take care of that internally.
stripe_ndx The index of the stripe on which the data will be sent. The index of each
stripe is determined by the call to local_spas or local_spor.
data_info An opaque structure that is passed into the enqueue function and contains
reference count and state information. The same data_info pointer that is passed into
the enqueue function must be used for this parameter.
References GLOBUS_FTP_CONTROL_MODULE.
Author
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