lots of work on determinism in the linux driver.

luprex/core/cpp/drivertests.cpp

@@ -19,38 +19,6 @@ static void dump_lines(StreamBuffer *in, StreamBuffer *out, int chid) {
     }
 }
 
-// This test allows input on stdin or on port 8085.
-// You can type lines and see them echoed.
-class DriverListenTest : public DrivenEngine {
-public:
-    std::vector<SharedChannel> channels_;
-    virtual void event_init(int argc, char *argv[]) {
-        listen_port(8085);
-    }
-    
-    virtual void event_update() {
-        while (true) {
-            SharedChannel ch = new_incoming_channel();
-            if (ch == nullptr) break;
-            ch->set_readline(true);
-            channels_.emplace_back(std::move(ch));
-        }
-
-        SharedChannel stdioch = get_stdio_channel();
-        dump_lines(stdioch->in(), stdioch->out(), 0);
-        std::vector<SharedChannel> keep;
-        for (SharedChannel &ch : channels_) {
-            dump_lines(ch->in(), stdioch->out(), ch->chid());
-            if (ch->closed()) {
-                write_closed_message(ch.get(), stdioch->out());
-            } else {
-                keep.emplace_back(std::move(ch));
-            }
-        }
-        channels_ = std::move(keep);
-    }
-};
-
 // This test connects to a public webserver and prints
 // the output from the server.
 class DriverWebServerTest : public DrivenEngine {
@@ -104,6 +72,15 @@ public:
     }
 };
 
+static int64_t mallocstate() {
+    int64_t result = 0;
+    for (int i = 0; i < 10; i++) {
+        int64_t n = int64_t(malloc(1));
+        result = (result * 17) + n;
+    }
+    return result;
+}
+
 // This test just prints the time.
 class DriverPrintClockTest : public DrivenEngine {
 public:
@@ -117,11 +94,12 @@ public:
     virtual void event_update() {
         double clock = get_clock();
         if (clock > last_clock_ + 0.5) {
-            stdostream() << std::fixed << std::setprecision(2) << clock << "   ";
+            int64_t ms = mallocstate();
+            stdostream() << std::fixed << std::setprecision(2) << clock << "   " << std::hex << ms << "  ";
             count_++;
             last_clock_ = clock;
         }
-        if (count_ == 10) {
+        if (count_ == 4) {
             stdostream() << std::endl;
             count_ = 0;
         }
@@ -143,10 +121,6 @@ private:
 };
 
 
-UniqueDrivenEngine make_DriverListenTest() {
-    return UniqueDrivenEngine(new DriverListenTest);
-}
-
 UniqueDrivenEngine make_DriverWebServerTest() {
     return UniqueDrivenEngine(new DriverWebServerTest);
 }