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globus_xio_file_driver_cntls(3) globus_xio globus_xio_file_driver_cntls(3)

NAME

globus_xio_file_driver_cntls - Attributes and Cntls.

SYNOPSIS

Enumerations


enum globus_xio_file_attr_cmd_t { GLOBUS_XIO_FILE_SET_MODE, GLOBUS_XIO_FILE_GET_MODE, GLOBUS_XIO_FILE_SET_FLAGS, GLOBUS_XIO_FILE_GET_FLAGS, GLOBUS_XIO_FILE_SET_TRUNC_OFFSET, GLOBUS_XIO_FILE_GET_TRUNC_OFFSET, GLOBUS_XIO_FILE_SET_HANDLE, GLOBUS_XIO_FILE_GET_HANDLE, GLOBUS_XIO_FILE_SET_BLOCKING_IO, GLOBUS_XIO_FILE_GET_BLOCKING_IO, GLOBUS_XIO_FILE_SEEK }

Functions


globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_MODE, int mode)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_MODE, int *mode_out)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_FLAGS, int flags)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_FLAGS, int *flags_out)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_TRUNC_OFFSET, globus_off_t offset)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_TRUNC_OFFSET, globus_off_t *offset_out)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_HANDLE, globus_xio_system_file_t handle)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_HANDLE, globus_xio_system_file_t *handle_out)
globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_GET_HANDLE, globus_xio_system_file_t *handle_out)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_BLOCKING_IO, globus_bool_t use_blocking_io)
globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_SET_BLOCKING_IO, globus_bool_t use_blocking_io)
globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_BLOCKING_IO, globus_bool_t *use_blocking_io_out)
globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_GET_BLOCKING_IO, globus_bool_t *use_blocking_io_out)
globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_SEEK, globus_off_t *in_out_offset, globus_xio_file_whence_t whence)

Detailed Description

Attributes and Cntls.

File driver specific attrs and cntls.

See also:

globus_xio_attr_cntl()

globus_xio_handle_cntl()

Enumeration Type Documentation

enum globus_xio_file_attr_cmd_t

doxygen varargs filter stuff File driver specific cntls

Enumerator

GLOBUS_XIO_FILE_SET_MODE
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_GET_MODE
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_SET_FLAGS
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_GET_FLAGS
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_SET_TRUNC_OFFSET
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_GET_TRUNC_OFFSET
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_SET_HANDLE
See usage for: globus_xio_attr_cntl
GLOBUS_XIO_FILE_GET_HANDLE
See usage for: globus_xio_attr_cntl , globus_xio_handle_cntl
GLOBUS_XIO_FILE_SET_BLOCKING_IO
See usage for: globus_xio_attr_cntl , globus_xio_handle_cntl
GLOBUS_XIO_FILE_GET_BLOCKING_IO
See usage for: globus_xio_attr_cntl , globus_xio_handle_cntl
GLOBUS_XIO_FILE_SEEK
See usage for: globus_xio_handle_cntl

Function Documentation

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_MODE, int mode)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the file create mode.

Use this to set the permissions a non-existent file is created with, The default mode is 0644.

Parameters:

mode A bitwise OR of all the modes desired

See also:

globus_xio_file_mode_t

string opt: mode=int

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_MODE, int * mode_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the file create mode.

Parameters:

mode_out The current mode will be stored here.

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_FLAGS, int flags)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the file open flags.

The default flags specify to create the file if it doesn't exist, open it for reading and writing, and interpret it as a binary file.

Parameters:

flags A bitwise OR of all the flags desired

See also:

globus_xio_file_flag_t

string opt: flags=int

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_FLAGS, int * flags_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the file open flags.

Parameters:

flags_out The current flags will be stored here.

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_TRUNC_OFFSET, globus_off_t offset)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the file truncate offset.

Use this in conjunction with the GLOBUS_XIO_FILE_TRUNC flag to truncate a file to a non-zero offset. If the file was larger than offset bytes, the extra data is lost. If the file was shorter or non-existent, it is extended and the extended part reads as zeros. (default is 0)

Parameters:

offset The desired size of the file.

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_TRUNC_OFFSET, globus_off_t * offset_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the file truncate offset.

Parameters:

offset_out The offset will be stored here.

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_HANDLE, globus_xio_system_file_t handle)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Set the file handle to use.

Do not open a new file, use this pre-opened handle instead.

Parameters:

handle Use this handle (fd or HANDLE) for the file. Note: close() will not be called on this handle.

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_HANDLE, globus_xio_system_file_t * handle_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the file handle in use or in attr.

Parameters:

handle_out The file handle (fd or HANDLE) will be stored here. If none is set, GLOBUS_XIO_TCP_INVALID_HANDLE will be set.

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_SET_BLOCKING_IO, globus_bool_t use_blocking_io)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Enable true blocking io when making globus_xio_read/write() calls. Note: use with caution. You can deadlock an entire app with this.

Parameters:

use_blocking_io If GLOBUS_TRUE, true blocking io will be enabled. GLOBUS_FALSE will disable it (default);

globus_result_t globus_xio_attr_cntl (attr, driver, GLOBUS_XIO_FILE_GET_BLOCKING_IO, globus_bool_t * use_blocking_io_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the blocking io status in use or in attr.

Parameters:

use_blocking_io_out The flag will be set here. GLOBUS_TRUE for enabled.

string opt: blocking=bool

globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_GET_HANDLE, globus_xio_system_file_t * handle_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the file handle in use or in attr.

Parameters:

handle_out The file handle (fd or HANDLE) will be stored here. If none is set, GLOBUS_XIO_TCP_INVALID_HANDLE will be set.

globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_SET_BLOCKING_IO, globus_bool_t use_blocking_io)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Enable true blocking io when making globus_xio_read/write() calls. Note: use with caution. You can deadlock an entire app with this.

Parameters:

use_blocking_io If GLOBUS_TRUE, true blocking io will be enabled. GLOBUS_FALSE will disable it (default);

globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_GET_BLOCKING_IO, globus_bool_t * use_blocking_io_out)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Get the blocking io status in use or in attr.

Parameters:

use_blocking_io_out The flag will be set here. GLOBUS_TRUE for enabled.

string opt: blocking=bool

globus_result_t globus_xio_handle_cntl (handle, driver, GLOBUS_XIO_FILE_SEEK, globus_off_t * in_out_offset, globus_xio_file_whence_t whence)

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. Reposition read/write file offset.

Parameters:

in_out_offset Specify the desired offset (according to whence). On success, the actual file offset will be stored here.
whence Specify how offset should be interpreted.

See also:

globus_xio_file_whence_t

GLOBUS_XIO_SEEK

Author

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Wed Feb 27 2019 Version 6.1