Will there be a splice 2 full#

Upon successful completion, splice() returns the number of bytes splicedĪ return value of 0 means end of input. SPLICE_F_GIFT Unused for splice() see vmsplice(2). MSG_MORE in send(2), and the description of TCP_CORK When the fd_out refers to a socket (see also the description of SPLICE_F_MORE More data will be coming in a subsequent splice. That are spliced to/from may block (unless they have the O_NONBLOCKįlag set). This makes the splice pipe operations nonblocking,īut splice() may nevertheless block because the file descriptors It is a no-op (but is still permitted in a splice() call) in theįuture, a correct implementation may be restored.

Implementation of this flag was buggy: therefore starting in Linux 2.6.21

Will there be a splice 2 full#

The pipe, or if the pipe buffers don't refer to full pages. Kernel: pages may still be copied if the kernel cannot move the pages from Together zero or more of the following values: SPLICE_F_MOVE Attempt to move pages instead of copying. The flags argument is a bit mask that is composed by ORing Offset from which bytes will be read from fd_in in this case, theĪnalogous statements apply for fd_out and Then off_in must point to a buffer which specifies the starting

If fd_in does not refer to a pipe and off_in is not NULL,.

If fd_in does not refer to a pipe and off_in is NULL, thenīytes are read from fd_in starting from the file offset, and the.

If fd_in refers to a pipe, then off_in must be NULL.The following semantics apply for fd_in and

It transfers up to lenīytes of data from the file descriptor fd_in to the file descriptorįd_out, where one of the file descriptors must refer to a pipe. Kernel address space and user address space. #include ssize_t splice(int fd_in, off64_t * off_in, int fd_out, off64_t * off_out, size_t len, unsigned int flags ) DESCRIPTION splice() moves data between two file descriptors without copying between SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */