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.TH io_block 3
.SH NAME
io_block \- switch to blocking I/O
.SH SYNTAX
.B #include <libowfat/io.h>
void \fBio_block\fP(int64 fd);
.SH DESCRIPTION
io_block puts UNIX descriptor fd into ``blocking mode.''
File descriptors are normally in blocking mode, except if they come from
accept() or io_accept() and the listening socket was in non-blocking
mode.
.SH "SEE ALSO"
io_nonblock(3)