| /********** |
| This library is free software; you can redistribute it and/or modify it under |
| the terms of the GNU Lesser General Public License as published by the |
| Free Software Foundation; either version 2.1 of the License, or (at your |
| option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.) |
| |
| This library is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for |
| more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with this library; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| **********/ |
| // Copyright (c) 1996-2015 Live Networks, Inc. All rights reserved. |
| // Basic Usage Environment: for a simple, non-scripted, console application |
| // Implementation |
| |
| #include "BasicUsageEnvironment0.hh" |
| #include <stdio.h> |
| #if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_WCE) |
| #define snprintf _snprintf |
| #endif |
| |
| |
| ////////// BasicUsageEnvironment ////////// |
| |
| BasicUsageEnvironment0::BasicUsageEnvironment0(TaskScheduler& taskScheduler) |
| : UsageEnvironment(taskScheduler), |
| fBufferMaxSize(RESULT_MSG_BUFFER_MAX) { |
| reset(); |
| } |
| |
| BasicUsageEnvironment0::~BasicUsageEnvironment0() { |
| } |
| |
| void BasicUsageEnvironment0::reset() { |
| fCurBufferSize = 0; |
| fResultMsgBuffer[fCurBufferSize] = '\0'; |
| } |
| |
| |
| // Implementation of virtual functions: |
| |
| char const* BasicUsageEnvironment0::getResultMsg() const { |
| return fResultMsgBuffer; |
| } |
| |
| void BasicUsageEnvironment0::setResultMsg(MsgString msg) { |
| reset(); |
| appendToResultMsg(msg); |
| } |
| |
| void BasicUsageEnvironment0::setResultMsg(MsgString msg1, MsgString msg2) { |
| setResultMsg(msg1); |
| appendToResultMsg(msg2); |
| } |
| |
| void BasicUsageEnvironment0::setResultMsg(MsgString msg1, MsgString msg2, |
| MsgString msg3) { |
| setResultMsg(msg1, msg2); |
| appendToResultMsg(msg3); |
| } |
| |
| void BasicUsageEnvironment0::setResultErrMsg(MsgString msg, int err) { |
| setResultMsg(msg); |
| |
| if (err == 0) err = getErrno(); |
| #if defined(__WIN32__) || defined(_WIN32) || defined(_WIN32_WCE) |
| char errMsg[RESULT_MSG_BUFFER_MAX] = "\0"; |
| if (0 != FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM, NULL, err, 0, errMsg, sizeof(errMsg)/sizeof(errMsg[0]), NULL)) { |
| // Remove all trailing '\r', '\n' and '.' |
| for (char* p = errMsg + strlen(errMsg); p != errMsg && (*p == '\r' || *p == '\n' || *p == '.' || *p == '\0'); --p) { |
| *p = '\0'; |
| } |
| } else |
| snprintf(errMsg, sizeof(errMsg)/sizeof(errMsg[0]), "error %d", err); |
| appendToResultMsg(errMsg); |
| #else |
| appendToResultMsg(strerror(err)); |
| #endif |
| } |
| |
| |
| |
| |
| void BasicUsageEnvironment0::appendToResultMsg(MsgString msg) { |
| char* curPtr = &fResultMsgBuffer[fCurBufferSize]; |
| unsigned spaceAvailable = fBufferMaxSize - fCurBufferSize; |
| unsigned msgLength = strlen(msg); |
| |
| // Copy only enough of "msg" as will fit: |
| if (msgLength > spaceAvailable-1) { |
| msgLength = spaceAvailable-1; |
| } |
| |
| memmove(curPtr, (char*)msg, msgLength); |
| fCurBufferSize += msgLength; |
| fResultMsgBuffer[fCurBufferSize] = '\0'; |
| } |
| |
| void BasicUsageEnvironment0::reportBackgroundError() { |
| fputs(getResultMsg(), stderr); |
| } |
| |