NAME¶

gfs_pio_recvfile - receive a Gfarm file to local machine

SYNOPSIS¶

#include <gfarm/gfarm.h>

gfarm_error_t gfs_pio_recvfile(GFS_File r_gf, gfarm_off_t r_off, int w_fd, gfarm_off_t w_off, gfarm_off_t len, gfarm_off_t * recvp);

DESCRIPTION¶

Receives len bytes of data from the position specified by the offset r_off in a Gfarm file r_gf, to the position specified by the offset w_off of a local file which is pointed by a file descriptor w_fd. If len is -1, this function transfers until the end of the file. The transfered bytes will be stored to the memory pointed by recvp when recvp is not NULL. If len is a positive value, and the value pointed by recvp is less than len, that means the transfer reached EOF.

RETURN VALUES¶

GFARM_ERR_NO_ERROR

GFARM_ERR_OPERATION_NOT_PERMITTED

GFARM_ERR_BAD_FILE_DESCRIPTOR

GFARM_ERR_NO_FILE_SYSTEM_NODE

GFARM_ERR_NO_MEMORY

Others

SEE ALSO¶

gfs_pio_create(3), gfs_pio_open(3), gfs_pio_read(3), gfs_pio_sendfile(3)