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73899ad375
* lib/write.c (rpl_write): Split a write request that failed merely because the byte count was larger than the pipe buffer's size. * doc/posix-functions/write.texi: Mention the problem with large byte counts.
36 lines
1.1 KiB
Plaintext
36 lines
1.1 KiB
Plaintext
@node write
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@section @code{write}
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@findex write
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POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/write.html}
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Gnulib module: write, nonblocking, sigpipe
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Portability problems fixed by Gnulib module @code{stdio}, together with module @code{nonblocking}:
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@itemize
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@item
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When writing to a non-blocking pipe whose buffer is full, this function fails
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with @code{errno} being set to @code{ENOSPC} instead of @code{EAGAIN} on some
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platforms:
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mingw.
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@item
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When writing to a non-blocking pipe on which no reader is currently waiting
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an amount of bytes that exceeds the pipe buffer's size, then -- even if the
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pipe's buffer is empty -- this function fails, instead of performing a partial
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write into the pipe buffer, on some platforms:
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mingw.
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@end itemize
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Portability problems fixed by Gnulib module @code{stdio}, together with module @code{sigpipe}:
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@itemize
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@item
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When writing to a pipe with no readers, this function fails with error
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@code{EINVAL}, instead of obeying the current @code{SIGPIPE} handler, on
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some platforms:
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mingw.
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@end itemize
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Portability problems not fixed by Gnulib:
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@itemize
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@end itemize
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