From 6923595761a5006862bd785c63b35eb988543362 Mon Sep 17 00:00:00 2001
From: John Denker <jsd@av8n.com>
Date: Fri, 20 Jul 2012 12:15:59 -0700
Subject: much smarter about exit status conventions

---
 tools/hi-q.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

(limited to 'tools/hi-q.c')

diff --git a/tools/hi-q.c b/tools/hi-q.c
index f195508..369935e 100644
--- a/tools/hi-q.c
+++ b/tools/hi-q.c
@@ -68,6 +68,7 @@ foo_sa(TOOBIG,       98,  "message was too big to process (see --max-size)"
 
 void panic(const int sts) {
   // FIXME: stop other children
+  cerr << "hi-q: panic called with " << sts << endl;
   exit(sts);
 }
 
@@ -171,7 +172,15 @@ int xclose(int arg){
 
 extern char** environ;
 
-typedef enum {grey, black, qq, fail} moder;
+// meanings:
+// sa is a filter, using not-very-expressive exit codes: 0=ham 1=spam.
+// stub is not a filter; no stdin or stdout; just looks at environment.
+// series is a filter.
+// qq is not a filter, just an absorber.
+//
+// Note that series and stub use the same exit codes as qq.
+//
+typedef enum {series, stub, sa, qq, fail} moder;
 
 class jobber{
 public:
@@ -193,9 +202,9 @@ public:
 
   void setmode(const string _mode) {
     if (0) {}
-    else if (_mode == "gray")  mode = grey;
-    else if (_mode == "grey")  mode = grey;     // variant spelling
-    else if (_mode == "black") mode = black;
+    else if (_mode == "sa")  mode = sa;
+    else if (_mode == "stub")  mode = stub;
+    else if (_mode == "series") mode = series;
     else if (_mode == "qq") mode = qq;
     else {
       cerr << "jobber: bad mode: " << _mode << endl;
@@ -310,7 +319,7 @@ bar
 //xx fprintf(stderr, "Top of loop %d loose: %d\n", ii, loose_end);
 
     int kid_end;
-    if (filter[ii].mode != grey){
+    if (filter[ii].mode != stub){
       int datapipe[2];
 
       if (loose_end) {
@@ -396,7 +405,7 @@ bar
         }
       }
 
-      if (filter[ii].mode != grey){
+      if (filter[ii].mode != stub){
         close(loose_end);          // the reading end is none of this kid's business
                                   // except last kid:  writing end
 
@@ -540,7 +549,7 @@ bar
       string exword = "spam";           // default, for non-modern status codes
       int excode = ex_spam;             // default, for non-modern status codes
       int sts = WEXITSTATUS(best_blame);
-      if (filter[kidno].mode == grey) {
+      if (filter[kidno].mode != sa) {
         exword = codemap[sts];
         excode = sts;
       }
-- 
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