Converting log writers and input readers to plugins.

src/logging/writers/ascii/Ascii.h

@@ -0,0 +1,73 @@
+// See the file "COPYING" in the main distribution directory for copyright.
+//
+// Log writer for delimiter-separated ASCII logs.
+
+#ifndef LOGGING_WRITER_ASCII_H
+#define LOGGING_WRITER_ASCII_H
+
+#include "logging/WriterBackend.h"
+#include "threading/formatters/Ascii.h"
+#include "threading/formatters/JSON.h"
+
+namespace logging { namespace writer {
+
+class Ascii : public WriterBackend {
+public:
+	Ascii(WriterFrontend* frontend);
+	~Ascii();
+
+	static string LogExt();
+
+	static WriterBackend* Instantiate(WriterFrontend* frontend)
+		{ return new Ascii(frontend); }
+
+protected:
+	virtual bool DoInit(const WriterInfo& info, int num_fields,
+			    const threading::Field* const* fields);
+	virtual bool DoWrite(int num_fields, const threading::Field* const* fields,
+			     threading::Value** vals);
+	virtual bool DoSetBuf(bool enabled);
+	virtual bool DoRotate(const char* rotated_path, double open,
+			      double close, bool terminating);
+	virtual bool DoFlush(double network_time);
+	virtual bool DoFinish(double network_time);
+	virtual bool DoHeartbeat(double network_time, double current_time);
+
+private:
+	bool IsSpecial(string path) 	{ return path.find("/dev/") == 0; }
+	bool WriteHeader(const string& path);
+	bool WriteHeaderField(const string& key, const string& value);
+	void CloseFile(double t);
+	string Timestamp(double t); // Uses current time if t is zero.
+	void InitConfigOptions();
+	bool InitFilterOptions();
+	bool InitFormatter();
+
+	int fd;
+	string fname;
+	ODesc desc;
+	bool ascii_done;
+
+	// Options set from the script-level.
+	bool output_to_stdout;
+	bool include_meta;
+	bool tsv;
+
+	string separator;
+	string set_separator;
+	string empty_field;
+	string unset_field;
+	string meta_prefix;
+
+	bool use_json;
+	string json_timestamps;
+
+	threading::formatter::Formatter* formatter;
+	bool init_options;
+};
+
+}
+}
+
+
+#endif