#341 Added option --dry-run.

src/App.cpp

@@ -130,6 +130,13 @@ int App::exec()
     Mem::allocate(m_options->algo(), m_options->threads(), m_options->doubleHash(), m_options->hugePages());
     Summary::print();
 
+    if (m_options->dryRun()) {
+        LOG_NOTICE("OK");
+        release();
+
+        return 0;
+    }
+
 #   ifndef XMRIG_NO_API
     Api::start();
 #   endif
@@ -146,12 +153,7 @@ int App::exec()
     const int r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
     uv_loop_close(uv_default_loop());
 
-    delete m_network;
+    release();
-
-    Options::release();
-    Mem::release();
-    Platform::release();
-
     return r;
 }
 
@@ -200,6 +202,18 @@ void App::close()
 }
 
 
+void App::release()
+{
+    if (m_network) {
+        delete m_network;
+    }
+
+    Options::release();
+    Mem::release();
+    Platform::release();
+}
+
+
 void App::onSignal(uv_signal_t *handle, int signum)
 {
     switch (signum)

src/App.h

@@ -51,6 +51,7 @@ protected:
 private:
   void background();
   void close();
+  void release();
 
   static void onSignal(uv_signal_t *handle, int signum);
 

src/Options.cpp

@@ -101,12 +101,16 @@ static char const short_options[] = "a:c:khBp:Px:r:R:s:t:T:o:u:O:v:Vl:S";
 
 static struct option const options[] = {
     { "algo",             1, nullptr, 'a'  },
+    { "api-access-token", 1, nullptr, 4001 },
+    { "api-port",         1, nullptr, 4000 },
+    { "api-worker-id",    1, nullptr, 4002 },
     { "av",               1, nullptr, 'v'  },
     { "background",       0, nullptr, 'B'  },
     { "config",           1, nullptr, 'c'  },
     { "cpu-affinity",     1, nullptr, 1020 },
     { "cpu-priority",     1, nullptr, 1021 },
     { "donate-level",     1, nullptr, 1003 },
+    { "dry-run",          0, nullptr, 5000 },
     { "help",             0, nullptr, 'h'  },
     { "keepalive",        0, nullptr ,'k'  },
     { "log-file",         1, nullptr, 'l'  },
@@ -126,9 +130,6 @@ static struct option const options[] = {
     { "user-agent",       1, nullptr, 1008 },
     { "userpass",         1, nullptr, 'O'  },
     { "version",          0, nullptr, 'V'  },
-    { "api-port",         1, nullptr, 4000 },
-    { "api-access-token", 1, nullptr, 4001 },
-    { "api-worker-id",    1, nullptr, 4002 },
     { 0, 0, 0, 0 }
 };
 
@@ -141,6 +142,7 @@ static struct option const config_options[] = {
     { "cpu-affinity",  1, nullptr, 1020 },
     { "cpu-priority",  1, nullptr, 1021 },
     { "donate-level",  1, nullptr, 1003 },
+    { "dry-run",       0, nullptr, 5000 },
     { "huge-pages",    0, nullptr, 1009 },
     { "log-file",      1, nullptr, 'l'  },
     { "max-cpu-usage", 1, nullptr, 1004 },
@@ -205,6 +207,7 @@ Options::Options(int argc, char **argv) :
     m_background(false),
     m_colors(true),
     m_doubleHash(false),
+    m_dryRun(false),
     m_hugePages(true),
     m_ready(false),
     m_safe(false),
@@ -384,6 +387,7 @@ bool Options::parseArg(int key, const char *arg)
     case 'S':  /* --syslog */
     case 1005: /* --safe */
     case 1006: /* --nicehash */
+    case 5000: /* --dry-run */
         return parseBoolean(key, true);
 
     case 1002: /* --no-color */
@@ -557,6 +561,10 @@ bool Options::parseBoolean(int key, bool enable)
         m_colors = enable;
         break;
 
+    case 5000: /* --dry-run */
+        m_dryRun = enable;
+        break;
+
     default:
         break;
     }

src/Options.h

@@ -59,6 +59,7 @@ public:
     inline bool background() const                { return m_background; }
     inline bool colors() const                    { return m_colors; }
     inline bool doubleHash() const                { return m_doubleHash; }
+    inline bool dryRun() const                    { return m_dryRun; }
     inline bool hugePages() const                 { return m_hugePages; }
     inline bool syslog() const                    { return m_syslog; }
     inline const char *apiToken() const           { return m_apiToken; }
@@ -110,6 +111,7 @@ private:
     bool m_background;
     bool m_colors;
     bool m_doubleHash;
+    bool m_dryRun;
     bool m_hugePages;
     bool m_ready;
     bool m_safe;