still doesn't work

1 files changed, 20 insertions, 13 deletions

diff --git a/tools/hi-q.c b/tools/hi-q.c
index 3de9f1c..2078c60 100644
--- a/tools/hi-q.c
+++ b/tools/hi-q.c
@@ -265,13 +265,22 @@ int main(int argc, char** argv, char const * const * env) {
                             // equal to pid of kid#0
       if (ii) kidgroup = kidpid[0];
       if (setpgid(0, kidgroup) != 0) {
-        cerr << "setpgid failed! " << errno << " ... ";
+        cerr << "*** kid " << ii 
+           << " setpgid failed! " << errno << " ... ";
         perror(0);
+      } else {
+        cerr << "*** kid " << ii << " setpgid OK" << endl;
       }
-      if (ii == 0) {
-        int junk(1);
-        write(sync[wEnd], &junk, 1);
-        //cerr << "sync sent" << endl;
+
+      if (ii==0) {
+        int junk;
+        cerr << "about to read sync" << endl;
+        ssize_t rslt = read(sync[rEnd], &junk, 1);
+        if (rslt != 1) {
+          cerr << "bad sync ... 1 != " << rslt << endl;
+        } else {
+          cerr << "back from read sync, good: " << rslt << endl;
+        }
       }
 
 #if 1
@@ -324,14 +333,6 @@ int main(int argc, char** argv, char const * const * env) {
 ////////???    if (1) usleep(0);
 ///////???  if (ii == 0) usleep(1);
 
-    if (ii==0) {
-      int junk;
-      //cerr << "about to read sync" << endl;
-      ssize_t rslt = read(sync[rEnd], &junk, 1);
-      //cerr << "back from read sync: " << rslt << endl;
-      if (rslt) {}
-    }
-
 #if 0
     cerr << "apparent kid #" << ii 
             << " (" << kidpid[ii] << ") "
@@ -339,6 +340,12 @@ int main(int argc, char** argv, char const * const * env) {
 #endif
   } /* end loop starting all kids */
 
+  { // release the hold on kid #0
+    int junk(1);
+    write(sync[wEnd], &junk, 1);
+    cerr << "sync sent" << endl;
+  }
+
 // here with the whole pipeline of kids launched
 
   close(0);             // the reading end of stdin was