From 29be5cc07bdaa22086da6d0607a1c86b07e95875 Mon Sep 17 00:00:00 2001
From: Mihai Moldovan <ïonic@ionic.de>
Date: Sat, 2 Jul 2016 21:49:10 +0000
Subject: 
 {nx-X11/programs/Xserver/hw/nxagent/{Args.c,Options.{c,h}},nxcomp/{Loop,Misc}.cpp}:
 add tolerancechecks parameter as an nx/nx option and ReconnectTolerance as an
 nxagentOption.

---
 nx-X11/programs/Xserver/hw/nxagent/Args.c    | 76 ++++++++++++++++++++++++++++
 nx-X11/programs/Xserver/hw/nxagent/Options.c |  2 +
 nx-X11/programs/Xserver/hw/nxagent/Options.h | 17 +++++++
 3 files changed, 95 insertions(+)

(limited to 'nx-X11/programs/Xserver')

diff --git a/nx-X11/programs/Xserver/hw/nxagent/Args.c b/nx-X11/programs/Xserver/hw/nxagent/Args.c
index 832595786..9e54c0073 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Args.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Args.c
@@ -1405,6 +1405,82 @@ static void nxagentParseOptions(char *name, char *value)
 
     return;
   }
+  else if (!strcmp(name, "tolerancechecks"))
+  {
+    if (strcmp(value, "strict") == 0)
+    {
+      nxagentChangeOption(ReconnectTolerance, ToleranceChecksStrict);
+    }
+    else if (strcmp(value, "safe") == 0)
+    {
+      nxagentChangeOption(ReconnectTolerance, ToleranceChecksSafe);
+    }
+    else if (strcmp(value, "risky") == 0)
+    {
+      nxagentChangeOption(ReconnectTolerance, ToleranceChecksRisky);
+    }
+    else if (strcmp(value, "none") == 0)
+    {
+      nxagentChangeOption(ReconnectTolerance, ToleranceChecksBypass);
+    }
+    else
+    {
+      /*
+       * Check for a matching integer. Or any integer, really.
+       */
+      long tolerance_parse = 0;
+
+      errno = 0;
+      tolerance_parse = strtol(value, NULL, 10);
+
+      if ((errno) && (0 == tolerance_parse))
+      {
+        fprintf(stderr, "nxagentParseOptions: Unable to convert value [%s] of option [%s]. "
+                        "Ignoring option.\n",
+                        validateString(value), validateString(name));
+
+        return;
+      }
+
+      if ((long) UINT_MAX < tolerance_parse)
+      {
+        tolerance_parse = UINT_MAX;
+
+        fprintf(stderr, "nxagentParseOptions: Warning: value [%s] of option [%s] "
+                        "out of range, clamped to [%u].\n",
+                        validateString(value), validateString(name), tolerance_parse);
+      }
+
+      if (0 > tolerance_parse)
+      {
+        tolerance_parse = 0;
+
+        fprintf(stderr, "nxagentParseOptions: Warning: value [%s] of option [%s] "
+                        "out of range, clamped to [%u].\n",
+                        validateString(value), validateString(name), tolerance_parse);
+      }
+
+      #ifdef TEST
+      switch (tolerance_parse) {
+        case ToleranceChecksStrict:
+        case ToleranceChecksSafe:
+        case ToleranceChecksRisky:
+        case ToleranceChecksBypass:
+                               break;
+        default:
+                               fprintf(stderr, "nxagentParseOptions: Warning: value [%s] of "
+                                               "option [%s] unknown, will be mapped to "
+                                               "\"Bypass\" [%u] value internally.\n",
+                                       validateString(value), validateString(name),
+                                       (unsigned int)ToleranceChecksBypass);
+      }
+      #endif
+
+      nxagentChangeOption(ReconnectTolerance, tolerance_parse);
+    }
+
+    return;
+  }
   else
   {
     #ifdef DEBUG
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Options.c b/nx-X11/programs/Xserver/hw/nxagent/Options.c
index 0a894f9a4..978f3ab95 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Options.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Options.c
@@ -166,6 +166,8 @@ void nxagentInitOptions()
   nxagentOptions.Xinerama = 1;
 
   nxagentOptions.SleepTime = DEFAULT_SLEEP_TIME;
+
+  nxagentOptions.ReconnectTolerance = DEFAULT_TOLERANCE;
 }
 
 /*
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Options.h b/nx-X11/programs/Xserver/hw/nxagent/Options.h
index df6f8b65b..20616a90b 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Options.h
+++ b/nx-X11/programs/Xserver/hw/nxagent/Options.h
@@ -67,6 +67,17 @@ typedef enum _ClientOsType
 
 } ClientOsType;
 
+typedef enum _ToleranceChecksMode
+{
+  ToleranceChecksStrict = 0,
+  ToleranceChecksSafe = 1,
+  ToleranceChecksRisky = 2,
+  ToleranceChecksBypass = 3
+} ToleranceChecksMode;
+
+
+#define DEFAULT_TOLERANCE ToleranceChecksStrict
+
 /*
  * Set of options affecting agent operations.
  */
@@ -414,6 +425,12 @@ typedef struct _AgentOptions
 
   unsigned int SleepTime;
 
+  /*
+   * Tolerance - tightens or loosens reconnect checks.
+   */
+
+  ToleranceChecksMode ReconnectTolerance;
+
 } AgentOptionsRec;
 
 typedef AgentOptionsRec *AgentOptionsPtr;
-- 
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