(ModbusTCPCore): немного оптимизировал чтение (чтобы каждый раз

conf/libuniset2.spec

@@ -14,7 +14,7 @@
 
 Name: libuniset2
 Version: 2.4
-Release: alt7
+Release: alt8
 Summary: UniSet - library for building distributed industrial control systems
 
 License: LGPL
@@ -484,6 +484,9 @@ mv -f %buildroot%python_sitelibdir_noarch/* %buildroot%python_sitelibdir/%oname
 # ..
 
 %changelog
+* Fri Aug 19 2016 Pavel Vainerman <pv@altlinux.ru> 2.4-alt8
+- ModbusTCPCore: minor optimization
+
 * Fri Aug 19 2016 Pavel Vainerman <pv@altlinux.ru> 2.4-alt7
 - minor fixes
 

src/Communications/Modbus/ModbusTCPCore.cc

@@ -20,6 +20,7 @@ using namespace std;
 using namespace ModbusRTU;
 // -------------------------------------------------------------------------
 #define USE_BUFFER_FOR_READ 1
+#define DEFAULT_BUFFER_SIZE_FOR_READ 255
 // -------------------------------------------------------------------------
 size_t ModbusTCPCore::readNextData(UTCPStream* tcp,
 								   std::queue<unsigned char>& qrecv, size_t max, timeout_t t )
@@ -31,6 +32,8 @@ size_t ModbusTCPCore::readNextData(UTCPStream* tcp,
 
 #ifdef USE_BUFFER_FOR_READ
 
+	max = std::max(max,(size_t)DEFAULT_BUFFER_SIZE_FOR_READ);
+
 	char* buf = new char[max];
 
 	if( buf == 0 )