Attachment 923 Details for Bug 1400 – sync through pipe

[patch] sync through pipe

patch-kcwu-luit.c (text/plain), 1.60 KB, created by Kuang-che Wu on 2004-09-16 22:08:48 UTC

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Creator: Kuang-che Wu

Created: 2004-09-16 22:08:48 UTC

Size: 1.60 KB

patch

obsolete

>--- programs/luit/luit.c	Fri Mar  5 01:48:51 2004
>+++ /tmp/luit/luit.c	Sun Jul 18 09:01:22 2004
>@@ -45,6 +45,8 @@
> #include "charset.h"
> #include "iso2022.h"
> 
>+static int p2c_waitpipe[2];
>+static int c2p_waitpipe[2];
> static Iso2022Ptr inputState = NULL, outputState = NULL;
> 
> static char *child_argv0 = NULL;
>@@ -462,6 +464,8 @@
>         exit(1);
>     }
> 
>+    pipe(p2c_waitpipe);
>+    pipe(c2p_waitpipe);
>     pid = fork();
>     if(pid < 0) {
>         perror("Couldn't fork");
>@@ -470,8 +474,12 @@
> 
>     if(pid == 0) {
>         close(pty);
>+	close(p2c_waitpipe[1]);
>+	close(c2p_waitpipe[0]);
>         child(line, path, child_argv);
>     } else {
>+	close(p2c_waitpipe[0]);
>+	close(c2p_waitpipe[1]);
>         free(child_argv);
>         free(path);
>         free(line);
>@@ -486,6 +494,7 @@
> {
>     int tty;
>     int pgrp;
>+    char tmp[10];
> 
>     close(0);
>     close(1);
>@@ -501,6 +510,7 @@
>         kill(getppid(), SIGABRT);
>         exit(1);
>     }
>+    write(c2p_waitpipe[1],"1",1);
>     
>     if(tty != 0)
>         dup2(tty, 0);
>@@ -512,6 +522,9 @@
>     if(tty > 2)
>         close(tty);
>     
>+    read(p2c_waitpipe[0],tmp,1);
>+    close(c2p_waitpipe[1]);
>+    close(p2c_waitpipe[0]);
>     execvp(path, argv);
>     perror("Couldn't exec");
>     exit(1);
>@@ -535,7 +548,9 @@
>     int i;
>     int val;
>     int rc;
>+    char tmp[10];
> 
>+    read(c2p_waitpipe[0],tmp,1);
>     if(verbose) {
>         reportIso2022(outputState);
>     }
>@@ -564,6 +579,9 @@
> 
>     setWindowSize(0, pty);
> 
>+    write(p2c_waitpipe[1],"1",1);
>+    close(c2p_waitpipe[0]);
>+    close(p2c_waitpipe[1]);
>     for(;;) {
>         rc = waitForInput(0, pty);
>

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