+
−@node write
+
−@section @code{write}
+
−@findex write
+
−
+
−POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/write.html}
+
−
+
−Gnulib module: write, nonblocking, sigpipe
+
−
+
−Portability problems fixed by Gnulib module @code{stdio}, together with module @code{nonblocking}:
+
−@itemize
+
−@item
+
−When writing to a non-blocking pipe whose buffer is full, this function fails
+
−with @code{errno} being set to @code{ENOSPC} instead of @code{EAGAIN} on some
+
−platforms:
+
−mingw, MSVC 9.
+
−@item
+
−When writing to a non-blocking pipe on which no reader is currently waiting
+
−an amount of bytes that exceeds the pipe buffer's size, then -- even if the
+
−pipe's buffer is empty -- this function fails, instead of performing a partial
+
−write into the pipe buffer, on some platforms:
+
−mingw, MSVC 9.
+
−@end itemize
+
−
+
−Portability problems fixed by Gnulib module @code{stdio}, together with module @code{sigpipe}:
+
−@itemize
+
−@item
+
−When writing to a pipe with no readers, this function fails with error
+
−@code{EINVAL}, instead of obeying the current @code{SIGPIPE} handler, on
+
−some platforms:
+
−mingw, MSVC 9.
+
−@end itemize
+
−
+
−Portability problems not fixed by Gnulib:
+
−@itemize
+
−@item
+
−This function may fail with error @code{EINTR}, even in programs that don't
+
−install any signal handlers, on some platforms:
+
−MacOS X 10.5.
+
−@end itemize
+
−
+
−For handling @code{EINTR}, Gnulib provides a module @samp{safe-write} with a
+
−function @code{safe_write}.