From 1544f90960275dc9211bde30329c3258e0e1bf38 Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Sat, 25 Dec 2004 21:56:33 +0000
Subject: New thread library

---
 src/libthread/ioproc.c | 77 --------------------------------------------------
 1 file changed, 77 deletions(-)
 delete mode 100644 src/libthread/ioproc.c

(limited to 'src/libthread/ioproc.c')

diff --git a/src/libthread/ioproc.c b/src/libthread/ioproc.c
deleted file mode 100644
index 4e4c32a8..00000000
--- a/src/libthread/ioproc.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <u.h>
-#include <libc.h>
-#include <thread.h>
-#include "ioproc.h"
-
-enum
-{
-	STACK = 8192,
-};
-
-void
-iointerrupt(Ioproc *io)
-{
-	if(!io->inuse)
-		return;
-	threadint(io->tid);
-}
-
-static void
-xioproc(void *a)
-{
-	Ioproc *io, *x;
-	io = a;
-	/*
-	 * first recvp acquires the ioproc.
-	 * second tells us that the data is ready.
-	 */
-	for(;;){
-		while(recv(io->c, &x) == -1)
-			;
-		if(x == 0)	/* our cue to leave */
-			break;
-		assert(x == io);
-
-		/* caller is now committed -- even if interrupted he'll return */
-		while(recv(io->creply, &x) == -1)
-			;
-		if(x == 0)	/* caller backed out */
-			continue;
-		assert(x == io);
-
-		io->ret = io->op(&io->arg);
-		if(io->ret < 0)
-			rerrstr(io->err, sizeof io->err);
-		while(send(io->creply, &io) == -1)
-			;
-		while(recv(io->creply, &x) == -1)
-			;
-	}
-}
-
-Ioproc*
-ioproc(void)
-{
-	Ioproc *io;
-
-	io = mallocz(sizeof(*io), 1);
-	if(io == nil)
-		sysfatal("ioproc malloc: %r");
-	io->c = chancreate(sizeof(void*), 0);
-	io->creply = chancreate(sizeof(void*), 0);
-	io->tid = proccreate(xioproc, io, STACK);
-	return io;
-}
-
-void
-closeioproc(Ioproc *io)
-{
-	if(io == nil)
-		return;
-	iointerrupt(io);
-	while(send(io->c, 0) == -1)
-		;
-	chanfree(io->c);
-	chanfree(io->creply);
-	free(io);
-}
-- 
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