File logging option

cli-miner.cpp

@@ -124,6 +124,9 @@ int main(int argc, char *argv[])
 	printer::inst()->print_str("'c' - connection\n");
 	printer::inst()->print_str("-------------------------------------------------------------------\n");
 
+	if(strlen(jconf::inst()->GetOutputFile()) != 0)
+		printer::inst()->open_logfile(jconf::inst()->GetOutputFile());
+
 	executor::inst()->ex_start();
 
 	int key;

config.txt

@@ -140,6 +140,14 @@
  */
 "h_print_time" : 60,
 
+/*
+ * Output file
+ *
+ * output_file  - This option will log all output to a file.
+ *
+ */
+"output_file" : "",
+
 /*
  * Built-in web server
  * I like checking my hashrate on my phone. Don't you?

console.cpp

@@ -155,6 +155,13 @@ printer* printer::oInst = nullptr;
 printer::printer()
 {
 	verbose_level = LINF;
+	logfile = nullptr;
+}
+
+bool printer::open_logfile(const char* file)
+{
+	logfile = fopen(file, "ab+");
+	return logfile != nullptr;
 }
 
 void printer::print_msg(verbosity verbose, const char* fmt, ...)
@@ -185,10 +192,22 @@ void printer::print_msg(verbosity verbose, const char* fmt, ...)
 
 	std::unique_lock<std::mutex> lck(print_mutex);
 	fputs(buf, stdout);
+
+	if(logfile != nullptr)
+	{
+		fputs(buf, logfile);
+		fflush(logfile);
+	}
 }
 
 void printer::print_str(const char* str)
 {
 	std::unique_lock<std::mutex> lck(print_mutex);
 	fputs(str, stdout);
+
+	if(logfile != nullptr)
+	{
+		fputs(str, logfile);
+		fflush(logfile);
+	}
 }

console.h

@@ -31,6 +31,7 @@ public:
 	inline void set_verbose_level(size_t level) { verbose_level = (verbosity)level; }
 	void print_msg(verbosity verbose, const char* fmt, ...);
 	void print_str(const char* str);
+	bool open_logfile(const char* file);
 
 private:
 	printer();
@@ -38,4 +39,5 @@ private:
 
 	std::mutex print_mutex;
 	verbosity verbose_level;
+	FILE* logfile;
 };

jconf.cpp

@@ -45,9 +45,10 @@ using namespace rapidjson;
 /*
  * This enum needs to match index in oConfigValues, otherwise we will get a runtime error
  */
-enum configEnum { iCpuThreadNum, aCpuThreadsConf, sUseSlowMem, bNiceHashMode, bTlsMode, bTlsSecureAlgo, sTlsFingerprint,
-	sPoolAddr, sWalletAddr, sPoolPwd, iCallTimeout, iNetRetry, iGiveUpLimit, iVerboseLevel, iAutohashTime, iHttpdPort,
-	bPreferIpv4 };
+enum configEnum { iCpuThreadNum, aCpuThreadsConf, sUseSlowMem, bNiceHashMode,
+	bTlsMode, bTlsSecureAlgo, sTlsFingerprint, sPoolAddr, sWalletAddr, sPoolPwd,
+	iCallTimeout, iNetRetry, iGiveUpLimit, iVerboseLevel, iAutohashTime,
+	sOutputFile, iHttpdPort, bPreferIpv4 };
 
 struct configVal {
 	configEnum iName;
@@ -72,6 +73,7 @@ configVal oConfigValues[] = {
 	{ iGiveUpLimit, "giveup_limit", kNumberType },
 	{ iVerboseLevel, "verbose_level", kNumberType },
 	{ iAutohashTime, "h_print_time", kNumberType },
+	{ sOutputFile, "output_file", kStringType },
 	{ iHttpdPort, "httpd_port", kNumberType },
 	{ bPreferIpv4, "prefer_ipv4", kTrueType }
 };
@@ -242,6 +244,11 @@ bool jconf::NiceHashMode()
 	return prv->configValues[bNiceHashMode]->GetBool();
 }
 
+const char* jconf::GetOutputFile()
+{
+	return prv->configValues[sOutputFile]->GetString();
+}
+
 bool jconf::check_cpu_features()
 {
 	constexpr int AESNI_BIT = 1 << 25;

jconf.h

@@ -43,6 +43,8 @@ public:
 	uint64_t GetVerboseLevel();
 	uint64_t GetAutohashTime();
 
+	const char* GetOutputFile();
+
 	uint64_t GetCallTimeout();
 	uint64_t GetNetRetry();
 	uint64_t GetGiveUpLimit();