diff options
Diffstat (limited to 'man2/sendfile.2')
| -rw-r--r-- | man2/sendfile.2 | 28 |
1 files changed, 14 insertions, 14 deletions
diff --git a/man2/sendfile.2 b/man2/sendfile.2 index a385949c1..660ced064 100644 --- a/man2/sendfile.2 +++ b/man2/sendfile.2 @@ -44,9 +44,9 @@ copies data between one file descriptor and another. Because this copying is done within the kernel, .BR sendfile () is more efficient than the combination of -.BR read (2) +.MR read 2 and -.BR write (2), +.MR write 2 , which would require transferring data to and from user space. .P .I in_fd @@ -88,7 +88,7 @@ is the number of bytes to copy between the file descriptors. The .I in_fd argument must correspond to a file which supports -.BR mmap (2)-like +.MR mmap 2 -like operations (i.e., it cannot be a socket). Except since Linux 5.12 @@ -98,7 +98,7 @@ and if is a pipe, in which case .BR sendfile () desugars to a -.BR splice (2) +.MR splice 2 and its restrictions apply. .P Before Linux 2.6.33, @@ -137,7 +137,7 @@ Bad address. .TP .B EINVAL Descriptor is not valid or locked, or an -.BR mmap (2)-like +.MR mmap 2 -like operation is not available for .IR in_fd , or @@ -210,13 +210,13 @@ to send some header data in front of the file contents, you will find it useful to employ the .B TCP_CORK option, described in -.BR tcp (7), +.MR tcp 7 , to minimize the number of packets and to tune performance. .P Applications may wish to fall back to -.BR read (2) +.MR read 2 and -.BR write (2) +.MR write 2 in the case where .BR sendfile () fails with @@ -234,12 +234,12 @@ remain unmodified until the reader on the other end of has consumed the transferred data. .P The Linux-specific -.BR splice (2) +.MR splice 2 call supports transferring data between arbitrary file descriptors provided one (or both) of them is a pipe. .SH SEE ALSO -.BR copy_file_range (2), -.BR mmap (2), -.BR open (2), -.BR socket (2), -.BR splice (2) +.MR copy_file_range 2 , +.MR mmap 2 , +.MR open 2 , +.MR socket 2 , +.MR splice 2 |