(LogReader): сделал возможность задавать фильтр на выводимый тест (grep)

Utilities/ULog/log.cc

@@ -25,7 +25,7 @@ static struct option longopts[] =
 	{ "off", required_argument, 0, 'o' },
 	{ "on", required_argument, 0, 'e' },
 	{ "save-loglevels", required_argument, 0, 'u' },
-	{ "restore-loglevels", required_argument, 0, 'g' },
+	{ "restore-loglevels", required_argument, 0, 'y' },
 	{ "view-default-loglevels", required_argument, 0, 'b' },
 	{ "list", optional_argument, 0, 'l' },
 	{ "rotate", optional_argument, 0, 'r' },
@@ -35,6 +35,7 @@ static struct option longopts[] =
 	{ "reconnect-delay", required_argument, 0, 'x' },
 	{ "logfile", required_argument, 0, 'w' },
 	{ "logfile-truncate", required_argument, 0, 'z' },
+	{ "grep", required_argument, 0, 'g' },
 	{ NULL, 0, 0, 0 }
 };
 // --------------------------------------------------------------------------
@@ -60,10 +61,11 @@ static void print_help()
 	printf("[-e | --on] [logfilter]                     - On(enable) the write log file (if before disabled).\n");
 	printf("[-r | --rotate] [logfilter]                 - rotate log file.\n");
 	printf("[-u | --save-loglevels] [logfilter]         - save log levels (disable restore after disconnected).\n");
-	printf("[-g | --restore-loglevels] [logfilter]      - restore default log levels.\n");
+	printf("[-y | --restore-loglevels] [logfilter]      - restore default log levels.\n");
 	printf("[-b | --view-default-loglevels] [logfilter] - list of default log levels.\n");
 
 	printf("[-l | --list] [logfilter]                   - List of managed logs.\n");
+	printf("[-g | --grep pattern                        - Print lines matching a pattern (c++ regexp)\n");
 	printf("[-f | --filter] logfilter                   - ('filter mode'). View log only from 'logfilter'(regexp)\n");
 	printf("\n");
 	printf("Note: 'logfilter' -  regexp for name of log. Default: ALL logs.\n");
@@ -90,12 +92,13 @@ int main( int argc, char** argv )
 	timeout_t rdelay = 8000;
 	string logfile("");
 	bool logtruncate = false;
+	std::string textfilter("");
 
 	try
 	{
 		while(1)
 		{
-			opt = getopt_long(argc, argv, "chvlf:a:p:i:d:s:n:eorbx:w:zt:gub", longopts, &optindex);
+			opt = getopt_long(argc, argv, "chvlf:a:p:i:d:s:n:eorbx:w:zt:g:uby:", longopts, &optindex);
 
 			if( opt == -1 )
 				break;
@@ -187,7 +190,7 @@ int main( int argc, char** argv )
 				}
 				break;
 
-				case 'g':  // --restore-loglevels
+				case 'y':  // --restore-loglevels
 				{
 					LogServerTypes::Command cmd = LogServerTypes::cmdRestoreLogLevel;
 					std::string filter("");
@@ -277,6 +280,10 @@ int main( int argc, char** argv )
 					logfile = string(optarg);
 					break;
 
+				case 'g':
+					textfilter = string(optarg);
+					break;
+
 				case 'z':
 					logtruncate = true;
 					break;
@@ -303,6 +310,7 @@ int main( int argc, char** argv )
 		lr.setCommandOnlyMode(cmdonly);
 		lr.setinTimeout(tout);
 		lr.setReconnectDelay(rdelay);
+		lr.setTextFilter(textfilter);
 
 		if( !logfile.empty() )
 			lr.log()->logFile(logfile, logtruncate);

conf/libuniset2.spec

@@ -506,6 +506,8 @@ rm -f %buildroot%_libdir/*.la
 %exclude %_pkgconfigdir/libUniSet2.pc
         
 # history of current unpublished changes
+- (LogReader): add '--grep' mode
+- minor fixes
 
 %changelog
 * Tue Sep 12 2017 Alexei Takaseev <taf@altlinux.org> 2.6-alt19.1

include/LogReader.h

@@ -75,6 +75,11 @@ namespace uniset
 				reconDelay = msec;
 			}
 
+			inline void setTextFilter( const std::string& f )
+			{
+				textfilter  = f;
+			}
+
 			DebugStream::StreamEvent_Signal signal_stream_event();
 
 			void setLogLevel( Debug::type t );
@@ -100,7 +105,8 @@ namespace uniset
 			std::string iaddr = { "" };
 			int port = { 0 };
 			bool cmdonly { false };
-			unsigned int readcount = { 0 }; // количество циклов чтения
+			size_t readcount = { 0 }; // количество циклов чтения
+			std::string textfilter = { "" };
 
 			DebugStream rlog;
 			std::shared_ptr<DebugStream> outlog; // рабочий лог в который выводиться полученная информация..

src/Log/LogAgregator.cc

@@ -315,7 +315,7 @@ namespace uniset
 
 			for( const auto& i : lst )
 			{
-				if( std::regex_match(i.name, rule) )
+				if( std::regex_search(i.name, rule) )
 				{
 					l.push_back(i);
 				}

src/Log/LogReader.cc

@@ -19,6 +19,7 @@
 #include <Poco/Net/NetException.h>
 #include <iostream>
 #include <sstream>
+#include <regex>
 #include "PassiveTimer.h"
 #include "Exceptions.h"
 #include "LogReader.h"
@@ -301,6 +302,8 @@ void LogReader::readlogs( const std::string& _addr, int _port, LogServerTypes::C
 
 	bool send_ok = cmd == LogServerTypes::cmdNOP ? true : false;
 
+	std::regex rule(textfilter);
+
 	while( rcount > 0 )
 	{
 		try
@@ -328,6 +331,10 @@ void LogReader::readlogs( const std::string& _addr, int _port, LogServerTypes::C
 				send_ok = true;
 			}
 
+			// Если мы работаем с текстовым фильтром
+			// то надо читать построчно..
+			ostringstream line;
+
 			while( tcp->poll(UniSetTimer::millisecToPoco(inTimeout), Poco::Net::Socket::SELECT_READ) )
 			{
 				ssize_t n = tcp->available();
@@ -337,7 +344,34 @@ void LogReader::readlogs( const std::string& _addr, int _port, LogServerTypes::C
 					tcp->receiveBytes(buf, n);
 					buf[n] = '\0';
 
-					outlog->any(false) << buf;
+					if( textfilter.empty() )
+					{
+						outlog->any(false) << buf;
+					}
+					else
+					{
+						// Всё это пока не оптимально,
+						// но мы ведь и не спешим..
+						for( ssize_t i=0; i<n; i++ )
+						{
+							// пока не встретили конец строки
+							// наполняем line..
+							if( buf[i] != '\n' )
+							{
+								line << buf[i];
+								continue;
+							}
+
+							line << endl;
+
+							std::string s(line.str());
+
+							if( std::regex_search(s, rule) )
+								outlog->any(false) << s;
+
+							line.str("");
+						}
+					}
 				}
 				else if( n == 0 && readcount <= 0 )
 					break;