Api: Add miner_setverbosity().

CHANGELOG.md

@@ -16,6 +16,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Replaced opencl kernel with opensource jawawawa opencl kernel
 - Added support for jawawawa AMD binary kernels
 - AMD auto kernel selection. Try bin first, if not fall back to opencl.
+- API: New method `miner_setverbosity`. [#1382](https://github.com/ethereum-mining/ethminer/pull/1382).
 
 ## 0.15.0rc1
 

docs/API_DOCUMENTATION.md

@@ -20,6 +20,7 @@
     * [miner_getscramblerinfo](#miner_getscramblerinfo)
     * [miner_setscramblerinfo](#miner_setscramblerinfo)
     * [miner_pausegpu](#miner_pausegpu)
+    * [miner_setverbosity](#miner_setverbosity)
 
 ## Introduction
 
@@ -566,3 +567,28 @@ and expect a result like this:
 
 which confirms the action has been performed.
 Again: This ONLY (re)starts mining if GPU was paused via a previous API call and not if GPU pauses for other reasons.
+
+### miner_setverbosity
+
+Set the verbosity level of ethminer.
+
+```json
+{
+  "id": 1,
+  "jsonrpc": "2.0",
+  "method": "miner_setverbosity",
+  "data": {
+    "verbosity": 9
+  }
+}
+```
+
+and expect a result like this:
+
+```json
+{
+  "id": 1,
+  "jsonrpc": "2.0",
+  "result": true
+}
+```

libapicore/ApiServer.cpp

@@ -624,6 +624,30 @@ void ApiConnection::processRequest(Json::Value& jRequest, Json::Value& jResponse
         jResponse["result"] = true;
     }
 
+    else if (_method == "miner_setverbosity")
+    {
+        if (!checkApiWriteAccess(m_readonly, jResponse))
+            return;
+
+        Json::Value jRequestParams;
+        if (!getRequestValue("params", jRequestParams, jRequest, false, jResponse))
+            return;
+
+        unsigned verbosity;
+        if (!getRequestValue("verbosity", verbosity, jRequestParams, false, jResponse))
+            return;
+
+        if (verbosity > 9)
+        {
+            jResponse["error"]["code"] = -422;
+            jResponse["error"]["message"] = "Verbosity out of bounds (0-9)";
+            return;
+        }
+        cnote << "Setting verbosity level to " << verbosity;
+        g_logVerbosity = verbosity;
+        jResponse["result"] = true;
+    }
+
     else
     {
         // Any other method not found