107 lines
3.2 KiB
C++
Executable File
107 lines
3.2 KiB
C++
Executable File
/**********
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This library is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the
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Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)
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This library is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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**********/
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// Copyright (c) 1996-2016 Live Networks, Inc. All rights reserved.
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// Basic Usage Environment: for a simple, non-scripted, console application
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// Implementation
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#include "BasicUsageEnvironment0.hh"
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#include <stdio.h>
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#if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_WCE)
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#define snprintf _snprintf
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#endif
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////////// BasicUsageEnvironment //////////
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BasicUsageEnvironment0::BasicUsageEnvironment0(TaskScheduler& taskScheduler)
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: UsageEnvironment(taskScheduler),
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fBufferMaxSize(RESULT_MSG_BUFFER_MAX) {
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reset();
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}
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BasicUsageEnvironment0::~BasicUsageEnvironment0() {
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}
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void BasicUsageEnvironment0::reset() {
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fCurBufferSize = 0;
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fResultMsgBuffer[fCurBufferSize] = '\0';
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}
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// Implementation of virtual functions:
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char const* BasicUsageEnvironment0::getResultMsg() const {
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return fResultMsgBuffer;
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}
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void BasicUsageEnvironment0::setResultMsg(MsgString msg) {
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reset();
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appendToResultMsg(msg);
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}
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void BasicUsageEnvironment0::setResultMsg(MsgString msg1, MsgString msg2) {
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setResultMsg(msg1);
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appendToResultMsg(msg2);
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}
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void BasicUsageEnvironment0::setResultMsg(MsgString msg1, MsgString msg2,
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MsgString msg3) {
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setResultMsg(msg1, msg2);
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appendToResultMsg(msg3);
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}
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void BasicUsageEnvironment0::setResultErrMsg(MsgString msg, int err) {
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setResultMsg(msg);
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if (err == 0) err = getErrno();
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#if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_WCE)
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char errMsg[RESULT_MSG_BUFFER_MAX] = "\0";
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if (0 != FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 0, errMsg, sizeof(errMsg)/sizeof(errMsg[0]), NULL)) {
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// Remove all trailing '\r', '\n' and '.'
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for (char* p = errMsg + strlen(errMsg); p != errMsg && (*p == '\r' || *p == '\n' || *p == '.' || *p == '\0'); --p) {
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*p = '\0';
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}
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} else
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snprintf(errMsg, sizeof(errMsg)/sizeof(errMsg[0]), "error %d", err);
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appendToResultMsg(errMsg);
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#else
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appendToResultMsg(strerror(err));
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#endif
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}
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void BasicUsageEnvironment0::appendToResultMsg(MsgString msg) {
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char* curPtr = &fResultMsgBuffer[fCurBufferSize];
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unsigned spaceAvailable = fBufferMaxSize - fCurBufferSize;
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unsigned msgLength = strlen(msg);
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// Copy only enough of "msg" as will fit:
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if (msgLength > spaceAvailable-1) {
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msgLength = spaceAvailable-1;
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}
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memmove(curPtr, (char*)msg, msgLength);
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fCurBufferSize += msgLength;
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fResultMsgBuffer[fCurBufferSize] = '\0';
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}
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void BasicUsageEnvironment0::reportBackgroundError() {
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fputs(getResultMsg(), stderr);
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}
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