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Removed some remarks about a future thread system.

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mainzelm 2001-12-17 09:25:29 +00:00
parent 8f3c22b40d
commit fc75f384a6
1 changed files with 1 additions and 10 deletions
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11
doc/scsh-manual/syscalls.tex
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@ -930,7 +930,7 @@ buffering is turned off
\end{defundesc} \end{defundesc}
\subsection{File locking} \subsection{File locking}
\label{sec:filelocking}
Scsh provides {\Posix} advisory file locking. Scsh provides {\Posix} advisory file locking.
\emph{Advisory} locks are locks that can be checked by user code, \emph{Advisory} locks are locks that can be checked by user code,
but do not affect other I/O operations. but do not affect other I/O operations.
@ -1973,20 +1973,11 @@ values \ex{'early}, \ex{'late}, or {\sharpf} (\ie, no autoreap).
The child is reaped from the {\Unix} kernel's process table The child is reaped from the {\Unix} kernel's process table
into scsh as soon as it dies. This is done by having a into scsh as soon as it dies. This is done by having a
signal handler for the \ex{SIGCHLD} signal reap the process. signal handler for the \ex{SIGCHLD} signal reap the process.
\emph{
If a scsh program sets its own handler for the \ex{SIGCHLD}
signal, the handler must reap dead children
by calling \ex{wait}, \ex{wait-any}, or \ex{reap-zombies}.}
We deprecate interrupt-driven code, and hope to provide
alternative tools in a future, multi-threaded release of scsh.
\item [late] \item [late]
The child is not autoreaped until it dies \emph{and} the scsh program The child is not autoreaped until it dies \emph{and} the scsh program
drops all pointers to its process object. That is, the process drops all pointers to its process object. That is, the process
table is cleaned out during garbage collection. table is cleaned out during garbage collection.
\oops{The \ex{late} policy is not supported under the current
release of scsh. It requires more sophisticated gc hooks than
we can get from the release of {\scm} that we use.}
\item [\sharpf] \item [\sharpf]
If autoreaping is turned off, process reaping is completely under If autoreaping is turned off, process reaping is completely under