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https://bitbucket.org/smil3y/kde-workspace.git
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f39596ee19
since kde-runtime was merged into kde-workspace some checks definitions are duplicated in config-runtime headers thus it is removed. missing function and header checks were added, most of which also missing in kde-runtime and kde-workspace so that is by no means mistake made during the merge. the check for libkstat for Solaris is actually done via /dev/kstat existence check from ksysguardd/Solaris/Solaris.cmake. Signed-off-by: Ivailo Monev <xakepa10@laimg.moc>
136 lines
3.3 KiB
C++
136 lines
3.3 KiB
C++
/* This file is part of the KDE libraries
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Copyright (C) 2001 Malte Starostik <malte@kde.org>
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Copyright (C) 2001 Leon Bottou <leon@bottou.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "djvucreator.h"
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#include <config-workspace.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <QFile>
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#include <QImage>
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#include <kdemacros.h>
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extern "C"
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{
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KDE_EXPORT ThumbCreator *new_creator()
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{
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return new DjVuCreator;
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}
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}
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bool DjVuCreator::create(const QString &path, int width, int height, QImage &img)
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{
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int output[2];
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QByteArray data(1024, 'k');
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bool ok = false;
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if (pipe(output) == -1)
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return false;
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const char* argv[8];
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QByteArray sizearg, fnamearg;
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sizearg = QByteArray::number(width) + 'x' + QByteArray::number(height);
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fnamearg = QFile::encodeName( path );
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argv[0] = "ddjvu";
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argv[1] = "-page";
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argv[2] = "1"; // krazy:exclude=doublequote_chars
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argv[3] = "-size";
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argv[4] = sizearg.data();
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argv[5] = fnamearg.data();
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argv[6] = 0;
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pid_t pid = fork();
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if (pid == 0)
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{
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close(output[0]);
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dup2(output[1], STDOUT_FILENO);
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execvp(argv[0], const_cast<char *const *>(argv));
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exit(1);
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}
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else if (pid >= 0)
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{
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close(output[1]);
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int offset = 0;
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while (!ok) {
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(output[0], &fds);
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struct timeval tv;
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tv.tv_sec = 20;
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tv.tv_usec = 0;
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if (select(output[0] + 1, &fds, 0, 0, &tv) <= 0) {
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if (errno == EINTR || errno == EAGAIN)
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continue;
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break; // error or timeout
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}
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if (FD_ISSET(output[0], &fds)) {
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int count = read(output[0], data.data() + offset, 1024);
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if (count == -1)
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break;
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if (count) // prepare for next block
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{
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offset += count;
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data.resize(offset + 1024);
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}
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else // got all data
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{
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data.resize(offset);
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ok = true;
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}
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}
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}
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if (!ok)
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kill(pid, SIGTERM);
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int status = 0;
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if (waitpid(pid, &status, 0) != pid || (status != 0 && status != 256) )
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ok = false;
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}
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else
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{
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close(output[1]);
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}
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close(output[0]);
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int l = img.loadFromData( data );
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return ok && l;
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}
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ThumbCreator::Flags DjVuCreator::flags() const
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{
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return static_cast<Flags>(DrawFrame);
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}
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