X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fconsole.cpp;fp=source%2Fconsole.cpp;h=eb7ac4b588bf4b6724ad8b28f02142ab010531ca;hb=33a5613489bbb9d4eab5c8761af88f4c1352aad4;hp=0000000000000000000000000000000000000000;hpb=5ed3d4f2ff489d02661aaabb24d4182f76499926;p=libs%2Fcore.git

diff --git a/source/console.cpp b/source/console.cpp
new file mode 100644
index 0000000..eb7ac4b
--- /dev/null
+++ b/source/console.cpp
@@ -0,0 +1,173 @@
+/* $Id$
+
+This file is part of libmspio
+Copyright © 2008  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#ifndef WIN32
+#include <errno.h>
+#include <fcntl.h>
+#include <termios.h>
+#endif
+#include <msp/core/except.h>
+#include "console.h"
+
+namespace {
+
+#ifndef WIN32
+termios orig_attr;
+#endif
+
+} // namespace
+
+namespace Msp {
+namespace IO {
+
+Console::Console(unsigned n)
+{
+	if(n>2)
+		throw InvalidParameterValue("Invalid parameter for Console::Console");
+
+	mode=(n==0 ? M_READ : M_WRITE);
+
+#ifdef WIN32
+	switch(n)
+	{
+	case 0: handle=GetStdHandle(STD_INPUT_HANDLE); break;
+	case 1: handle=GetStdHandle(STD_OUTPUT_HANDLE); break;
+	case 2: handle=GetStdHandle(STD_ERROR_HANDLE); break;
+	}
+#else
+	handle=n;
+
+	if(handle==0)
+		tcgetattr(handle, &orig_attr);
+#endif
+}
+
+Console::~Console()
+{
+#ifndef WIN32
+	if(handle==0)
+		tcsetattr(handle, TCSADRAIN, &orig_attr);
+#endif
+}
+
+void Console::set_block(bool b)
+{
+#ifdef WIN32
+	// XXX Dunno how to do this in win32
+	(void)b;
+#else
+	int flags=fcntl(0, F_GETFL);
+	flags=(flags&~O_NONBLOCK) | (b?0:O_NONBLOCK);
+	fcntl(0, F_SETFL, flags);
+#endif
+}
+
+void Console::set_local_echo(bool e)
+{
+	if(!(mode&M_READ))
+		throw InvalidState("Local echo can only be set on input console");
+
+#ifdef WIN32
+	DWORD m;
+	GetConsoleMode(handle, &m);
+	SetConsoleMode(handle, (m&~ENABLE_ECHO_INPUT) | (e?ENABLE_ECHO_INPUT:0));
+#else
+	termios t;
+	tcgetattr(0, &t);
+	t.c_lflag=(t.c_lflag&~ECHO) | (e?ECHO:0);
+	tcsetattr(0, TCSADRAIN, &t);
+#endif
+}
+
+void Console::set_line_buffer(bool l)
+{
+	if(!(mode&M_READ))
+		throw InvalidState("Line buffering can only be set on input console");
+
+#ifdef WIN32
+	DWORD m;
+	GetConsoleMode(handle, &m);
+	SetConsoleMode(handle, (m&~ENABLE_LINE_INPUT) | (l?ENABLE_LINE_INPUT:0));
+#else
+	// XXX ICANON does more than just set line buffering, may need a bit more thought
+	termios t;
+	tcgetattr(0, &t);
+	t.c_lflag=(t.c_lflag&~ICANON) | (l?ICANON:0);
+	tcsetattr(0, TCSADRAIN, &t);
+#endif
+}
+
+Handle Console::get_event_handle()
+{
+	return 0;
+}
+
+unsigned Console::do_write(const char *buf, unsigned len)
+{
+	if(!(mode&M_WRITE))
+		throw InvalidState("Console is not writable");
+
+#ifdef WIN32
+	DWORD ret;
+	if(!WriteFile(handle, buf, len, &ret, 0))
+		throw SystemError("Writing to console failed", GetLastError());
+#else
+	int ret=::write(1, buf, len);
+	if(ret==-1)
+		throw SystemError("Writing to console failed", errno);
+#endif
+
+	return ret;
+}
+
+unsigned Console::do_read(char *buf, unsigned len)
+{
+	if(!(mode&M_READ))
+		throw InvalidState("Console is not readable");
+
+#ifdef WIN32
+	DWORD ret;
+	if(!ReadFile(handle, buf, len, &ret, 0))
+		throw SystemError("Reading from console failed", GetLastError());
+#else
+	int ret=::read(0, buf, len);
+	if(ret==-1)
+	{
+		if(errno==EAGAIN)
+			return 0;
+		else
+			throw SystemError("Reading from console failed", errno);
+	}
+	else if(ret==0)
+		eof_flag=true;
+#endif
+
+	return ret;
+}
+
+Console &Console::instance(unsigned n)
+{
+	static Console in(0);
+	static Console out(1);
+	static Console err(2);
+
+	switch(n)
+	{
+	case 0: return in;
+	case 1: return out;
+	case 2: return err;
+	}
+
+	throw InvalidParameterValue("Unknown Console instance requested");
+}
+
+Console &cin=Console::instance(0);
+Console &cout=Console::instance(1);
+Console &cerr=Console::instance(2);
+
+} // namespace IO
+} // namespace Msp