#include <gfarm/gfarm.h>
gfarm_error_t gfs_pio_sendfile( |
w_gf, | |
w_off, | ||
r_fd, | ||
r_off, | ||
len, | ||
sentp) ; |
GFS_File w_gf
;gfarm_off_t w_off
;int r_fd
;gfarm_off_t r_off
;gfarm_off_t len
;gfarm_off_t * sentp
;
Sends
len
bytes of data from
the position specified by the offset
r_off
in a local file which is pointed by a file descriptor
r_fd
,
to the position specified by the offset
w_off
of a Gfarm file
w_gf
.
If len is -1, this function transfers until the end of the file.
The transfered bytes will be stored to the memory pointed by
sentp
when
sentp
is not NULL
.
If
len
is a positive value,
and the value pointed by
sentp
is less than
len
,
that means the transfer reached
EOF.
GFARM_ERR_NO_ERROR
The function terminated successfully.
GFARM_ERR_OPERATION_NOT_PERMITTED
gf
does not specify a regular file.
GFARM_ERR_BAD_FILE_DESCRIPTOR
The file descripter specified by gf
is
not a valid or is not open for reading.
GFARM_ERR_NO_FILE_SYSTEM_NODE
There is no available file system node.
GFARM_ERR_NO_MEMORY
Insufficient memory was available.
An error except the above occurred. The reason is shown by gfarm_error_string(3).