TerraSync: tweak warnings around checksum failures

Trying to reduce log spam when there is a server-side failure.

simgear/io/HTTPRepository.cxx

@@ -418,7 +418,7 @@ public:
             SG_LOG(SG_TERRASYNC, SG_WARN, "updated file but not found in dir:" << _relativePath << " " << file);
         } else {
             if (it->hash != hash) {
-                SG_LOG(SG_TERRASYNC, SG_INFO, "Checksum error for " << absolutePath() << "/" << file << " " << it->hash << " " << hash);
+                SG_LOG(SG_TERRASYNC, SG_WARN, "Checksum error for " << absolutePath() << "/" << file << " " << it->hash << " " << hash);
                 // we don't erase the file on a hash mismatch, because if we're syncing during the
                 // middle of a server-side update, the downloaded file may actually become valid.
                 _repository->failedToUpdateChild(_relativePath, HTTPRepository::REPO_ERROR_CHECKSUM);
@@ -1210,15 +1210,15 @@ HTTPRepository::failure() const
         } else if (fileStatus == HTTPRepository::REPO_ERROR_CANCELLED) {
             // if we were cancelled, don't report or log
             return;
+        } else {
+            SG_LOG(SG_TERRASYNC, SG_WARN, "failed to update entry:" << relativePath << " status/code: "
+               << innerResultCodeAsString(fileStatus) << "/" << fileStatus);
         }
 
         Failure f;
         f.path = relativePath;
         f.error = fileStatus;
         failures.push_back(f);
-
-        SG_LOG(SG_TERRASYNC, SG_WARN, "failed to update entry:" << relativePath << " status/code: "
-               << innerResultCodeAsString(fileStatus) << "/" << fileStatus);
     }
 
 } // of namespace simgear

simgear/io/HTTPRequest.cxx

@@ -193,6 +193,8 @@ void Request::onDone()
 //------------------------------------------------------------------------------
 void Request::onFail()
 {
+  // log if we FAIELD< but not if we CANCELLED
+  if (_ready_state == FAILED) {
     SG_LOG
     (
       SG_IO,
@@ -201,6 +203,7 @@ void Request::onFail()
                         << responseCode() << "/" << responseReason()
     );
   }
+}
 
 //------------------------------------------------------------------------------
 void Request::onAlways()
@@ -344,12 +347,17 @@ void Request::setSuccess(int code)
 //------------------------------------------------------------------------------
 void Request::setFailure(int code, const std::string& reason)
 {
+  // we use -1 for cancellation, don't be noisy in that case
+  if (code >= 0) { 
     SG_LOG(SG_IO, SG_WARN, "HTTP request: set failure:" << code << " reason " << reason);
+  }
+
   _responseStatus = code;
   _responseReason = reason;
 
-  if( !isComplete() )
+  if( !isComplete() ) {
-    setReadyState(FAILED);
+    setReadyState(code < 0 ? CANCELLED : FAILED);
+  }
 }
 
 //------------------------------------------------------------------------------
@@ -373,6 +381,12 @@ void Request::setReadyState(ReadyState state)
 
     _cb_fail(this);
   }
+  else if (state == CANCELLED )
+  {
+    onFail(); // do this for compatability
+    onAlways();
+    _cb_fail(this);
+  }
   else
     return;
 
@@ -402,7 +416,7 @@ bool Request::serverSupportsPipelining() const
 //------------------------------------------------------------------------------
 bool Request::isComplete() const
 {
-  return _ready_state == DONE || _ready_state == FAILED;
+  return _ready_state == DONE || _ready_state == FAILED || _ready_state == CANCELLED;
 }
 
 //------------------------------------------------------------------------------

simgear/io/HTTPRequest.hxx

@@ -54,7 +54,8 @@ public:
       HEADERS_RECEIVED,
       LOADING,
       DONE,
-      FAILED
+      FAILED,
+      CANCELLED
     };
 
     virtual ~Request();