From 8164bf28464ad3e7628c422d6f02e3b515702d12 Mon Sep 17 00:00:00 2001
From: John Denker <jsd@av8n.com>
Date: Sun, 22 Jul 2012 20:27:21 -0700
Subject: progress toward cleaning up logic of various modes and how the use
 their pipes

---
 tools/hi-q.c        | 32 +++++++++++++++++++++++++-------
 tools/hi-test.c     | 20 ++++++++++++++++++++
 tools/hi-test4.conf | 10 ++++++++++
 3 files changed, 55 insertions(+), 7 deletions(-)
 create mode 100755 tools/hi-test4.conf

diff --git a/tools/hi-q.c b/tools/hi-q.c
index 8766b08..39c68e3 100644
--- a/tools/hi-q.c
+++ b/tools/hi-q.c
@@ -425,13 +425,31 @@ bar
 
   // For N-1 kids, the loose end feeds forward.
   //    It will be written by this kid and read by the next kid.
-  // For the last kid, the loose end connects to hi-q.
-  //    It will be written by hi-q and read by the last kid.
-
-      int lastkid = (ii == nkids-1);
-  #define flip(a,b) (lastkid ? b : a)
-      loose_end = datapipe[flip(rEnd, wEnd)];
-      kid_end   = datapipe[flip(wEnd, rEnd)];
+  // For the special kid, the loose end will be its nonstandard input.
+  //    It will be written by us (hi-q) and read by the last kid.
+
+      switch (filter[ii].mode) {
+        case series:
+        case sa:
+            loose_end = datapipe[rEnd];
+            kid_end   = datapipe[wEnd];
+          break;
+        case qq:
+            loose_end = datapipe[wEnd];  // reverse of normal "series" case
+            kid_end   = datapipe[rEnd];  // reverse of normal "series" case
+          break;
+        case postspam:
+        case stub:       // didn't need a connection at all
+           cerr << "ignoring fd " << datapipe[wEnd]
+                << " and " << datapipe[rEnd]
+                << endl;
+            xclose(datapipe[wEnd]);
+            xclose(datapipe[rEnd]);
+          break;
+        case fail:
+            cerr << "should never happen:  invalid filter" << endl;
+            exeunt(ex_syserr);
+      }
     }
 
     kidpid[ii] = fork();
diff --git a/tools/hi-test.c b/tools/hi-test.c
index 47128a9..e2626cc 100644
--- a/tools/hi-test.c
+++ b/tools/hi-test.c
@@ -50,10 +50,22 @@ void dump(const string var){
   else  cerr << " is not set." << endl;
 }
 
+void countsome(const int unit){
+    char buf[3000];
+    int total(0);
+    for (;;) {
+      int rslt = read(unit, buf, sizeof(buf));
+      if (rslt <= 0) break;
+      total += rslt;
+    }
+    cerr << "read " << total << " bytes from unit " << unit << endl;
+}
+
 int main(int _argc, const char** _argv){
   int snooze(0);
   int status(0);
   int killmode(0);
+  int countmode(0);
   int argc(_argc);
   const char **argv(_argv);
   progname = *argv; argv++; argc--;
@@ -84,6 +96,10 @@ int main(int _argc, const char** _argv){
       killmode++;
       continue;
     }
+    if (prefix(arg, "-count")) {
+      countmode++;
+      continue;
+    }
     if (arg.substr(0,1) == "x") {
       continue;
     }
@@ -103,6 +119,10 @@ int main(int _argc, const char** _argv){
   if (foo) cerr << " HI_Q_GROUP: " << foo;
   cerr << endl;
   sleep(snooze);
+  if (countmode) {
+    countsome(0);
+    countsome(1);
+  }
   if (killmode) exeunt(status);
   exit(status);
 }
diff --git a/tools/hi-test4.conf b/tools/hi-test4.conf
new file mode 100755
index 0000000..caabbd2
--- /dev/null
+++ b/tools/hi-test4.conf
@@ -0,0 +1,10 @@
+#!/usr/local/bin/bash-c set -x ; /bin/echo "a b c" | 1</tmp/a /usr/src/qmail/tools/hi-q $0 ; echo $?
+#..............................................................................................................................|||
+#0000000001111111111222222222233333333334444444444555555555566666666667777777777888888888899999999990000000000111111111122222222223
+#1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890
+#! /usr/local/bin/bash-c  set -x ; /bin/echo "a b c " | 1</tmp/a TCPREMOTEHOST=asf TCPREMOTEIP=1.2.3.4  /var/qmail/bin/hi-q $0 ; echo $?
+
+series  /bin/cat
+stub    hi-test x0 -snooze 1
+series  /bin/cat
+qq      hi-test -count
-- 
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