SortedFile::SortedFile(const string & fileName,
int offset, int len, Datatype type,
int maxItems, Status& status)
: fileName(fileName), type(type), offset(offset),
length(len), maxItems(maxItems)
{
// Check incoming parameters.
status = OK;
if (offset < 0 || len < 1)
status = BADSORTPARM;
else if (type != STRING && type != INTEGER && type != DOUBLE)
status = BADSORTPARM;
else if (type == INTEGER && len != sizeof(int)
|| type == DOUBLE && len != sizeof(double))
status = BADSORTPARM;
if (status != OK)
return;
// Must have space for at least 2 items (records) because otherwise
// items cannot be swapped and sorted!
if (maxItems < 2 || !(buffer = new SORTREC [maxItems])) {
status = INSUFMEM;
return;
}
status = sortFile();
}
void sortMp3Files(char* path){
DIR *folder;
struct dirent *file;
if((folder = opendir(path)) != NULL){
while((file = readdir(folder)) != NULL){
if(strstr(file->d_name, ".mp3\0")){
sortFile(path, file->d_name);
}
}
}else{
perror("Could not open folder");
exit(1);
}
}
void FilesGrouper::addFilesToSort(istream &ifs, bool l_entered) {
if (l_entered)
cout << "Enter all files to be merged into one file, when finished, enter 'q':\n";
string filename;
ofstream ofs(new_file);
ofstream ofsEnteredFiles(listed_files);
while (getline(ifs, filename)) {
if (l_entered && filename == "q")
break;
if (filename != "") {
ofs << filename << "\n";
ofsEnteredFiles << (filename + "_copy") << "\n";
}
}
ofs.close();
ofsEnteredFiles.close();
// Iterate through the file and parse
ifstream ifs2(new_file);
ofs.open(current_file); // purpose is not to overwrite main file containing list of files to merge
while (getline(ifs2, filename)) {
if (sortFile(filename)) {
ofs << filename;
if (duplicate_original_file)
ofs << "_copy";
ofs << "\n";
}
}
// Update all the subfiles generated presorted files thus no need to sort file
for (int i = 0; i < subfile_count; ++i) {
ofs << ("sub_file_" + to_string(i)) << "\n";
}
ofs.close();
}
void MainWindow::createActions() /*菜单选项*/
{
/*文件菜单*/
openAction = new QAction(tr("打开"),this);
openAction->setStatusTip(tr("打开新文件"));
connect(openAction,SIGNAL(triggered()),this,SLOT(openFile()));
importAction = new QAction(tr("导入"),this);
importAction->setStatusTip(tr("导入数据"));
connect(importAction,SIGNAL(triggered()),this,SLOT(importFile()));
importAction->setDisabled(true);
sortAction = new QAction(tr("分类数据"),this);
sortAction->setStatusTip(tr("处理分类数据"));
connect(sortAction,SIGNAL(triggered()),this,SLOT(sortFile()));
sortAction->setDisabled(true);
exitAction = new QAction(tr("退出"),this);
exitAction->setStatusTip(tr("退出程序"));
connect(exitAction,SIGNAL(triggered()),this,SLOT(close()));
/*导入菜单*/
ebdicAction = new QAction(tr("显示EBDIC码"),this);
ebdicAction->setStatusTip(tr("显示EBDIC码"));
connect(ebdicAction,SIGNAL(triggered()),this,SLOT(loadEBDIC()));
ebdicAction->setDisabled(true);
reelAction = new QAction(tr("显示卷头"),this);
reelAction->setStatusTip(tr("显示卷头信息"));
connect(reelAction,SIGNAL(triggered()),this,SLOT(loadReel()));
reelAction->setDisabled(true);
traceAction = new QAction(tr("显示道头"),this);
traceAction->setStatusTip(tr("显示选定位置道头信息"));
connect(traceAction,SIGNAL(triggered()),this,SLOT(loadTrace()));
traceAction->setDisabled(true);
dataAction = new QAction(tr("地震数据"),this);
dataAction->setStatusTip(tr("显示选定位置的地震记录"));
connect(dataAction,SIGNAL(triggered()),this,SLOT(loadData()));
dataAction->setDisabled(true);
/*画图菜单*/
waveAction = new QAction(tr("波形显示"),this);
waveAction->setStatusTip(tr("波形显示剖面"));
connect(waveAction,SIGNAL(triggered()),this,SLOT(drawWave()));
waveAction->setDisabled(true);
grayAction = new QAction(tr("灰度显示"),this);
grayAction->setStatusTip(tr("显示灰度图像"));
connect(grayAction,SIGNAL(triggered()),this,SLOT(drawGray()));
grayAction->setDisabled(true);
colorAction = new QAction(tr("彩色显示"),this);
colorAction->setStatusTip(tr("显示彩色图像"));
connect(colorAction,SIGNAL(triggered()),this,SLOT(drawColor()));
colorAction->setDisabled(true);
//操作openGL图像
bigAction = new QAction(tr("放大"),this);
bigAction->setStatusTip(tr("放大图像"));
connect(bigAction,SIGNAL(triggered()),this,SLOT(bigger()));
bigAction->setDisabled(true);
littleAction = new QAction(tr("缩小"),this);
littleAction->setStatusTip(tr("缩小图像"));
connect(littleAction,SIGNAL(triggered()),this,SLOT(little()));
littleAction->setDisabled(true);
moveleftAction = new QAction(tr("左移"),this);
moveleftAction->setStatusTip(tr("左移图像"));
connect(moveleftAction,SIGNAL(triggered()),this,SLOT(moveleft()));
moveleftAction->setDisabled(true);
moverightAction = new QAction(tr("右移"),this);
moverightAction->setStatusTip(tr("图像右移"));
connect(moverightAction,SIGNAL(triggered()),this,SLOT(moveright()));
moverightAction->setDisabled(true);
moveupAction = new QAction(tr("上移"),this);
moveupAction->setStatusTip(tr("上移图像"));
connect(moveupAction,SIGNAL(triggered()),this,SLOT(moveup()));
moveupAction->setDisabled(true);
movedownAction = new QAction(tr("下移"),this);
movedownAction->setStatusTip(tr("下移图像"));
connect(movedownAction,SIGNAL(triggered()),this,SLOT(movedown()));
movedownAction->setDisabled(true);
moveMouseAction = new QAction(tr("移动"),this);
moveMouseAction->setStatusTip(tr("使用鼠标移动图像"));
connect(moveMouseAction,SIGNAL(triggered()),this,SLOT(moveMouse()));
moveMouseAction->setDisabled(true);
rotateMouseAction = new QAction(tr("旋转"),this);
rotateMouseAction->setStatusTip(tr("旋转图像"));
connect(rotateMouseAction,SIGNAL(triggered()),this,SLOT(rotateMouse()));
rotateMouseAction->setDisabled(true);
nextSliceAction = new QAction(tr("下一条剖面"),this);
nextSliceAction->setStatusTip(tr("选择下一条剖面"));
connect(nextSliceAction,SIGNAL(triggered()),this,SLOT(nextSlice()));
nextSliceAction->setDisabled(true);
preSliceAction = new QAction(tr("上一条剖面"),this);
preSliceAction->setStatusTip(tr("选择上一条剖面"));
connect(preSliceAction,SIGNAL(triggered()),this,SLOT(preSlice()));
preSliceAction->setDisabled(true);
drawGridAction = new QAction(tr("关闭网格"),this);
drawGridAction->setStatusTip(tr("打开/关闭剖面图像上的网格"));
connect(drawGridAction,SIGNAL(triggered()),this,SLOT(drawGrid()));
drawGridAction->setDisabled(true);
}
/*Function used to build process tree*/
void spawn()
{
pid_t pid;
int status;
int j;
pid = fork();
/*Error*/
if (pid < 0) {
printf("*** ERROR: forking child process failed\n");
myLog = fopen("log.txt", "a+");
fprintf(myLog, "*** ERROR: forking child process failed\n");
fclose(myLog);
exit(1);
}
/* Parent*/
else if(pid>0) {
printf("Parent: my pid = %d, parent pid = %d \n", getpid(), getppid());
myLog = fopen("log.txt", "a+");
fprintf(myLog, "Parent: my pid = %d, parent pid = %d \n", getpid(), getppid());
fclose(myLog);
/*Left Side*/
if( (pid=fork()) ==0){
printf(" Child: my pid = %d, parent pid = %d \n", getpid(), getppid());
myLog = fopen("log.txt", "a+");
fprintf(myLog, " Child: my pid = %d, parent pid = %d \n", getpid(), getppid());
fclose(myLog);
/*Grandchild process*/
for(j=0; j<2; j++){
if( (pid=fork()) ==0){
printf(" Grandchild: my pid = %d, parent pid = %d \n", getpid(), getppid());
myLog = fopen("log.txt", "a+");
fprintf(myLog, " Grandchild: my pid = %d, parent pid = %d \n", getpid(), getppid());
fclose(myLog);
/*Pipes for Left Grandchildren*/
/*First Left Grandkid*/
if(j==0){
dup2(pipeLeft[WRITE], pipeUp[WRITE]);
}
/*Second Left Grandkid*/
else{
dup2(pipeRight[WRITE], pipeUp[WRITE]);
}
close(pipeUp[READ]);
close(pipeLeft[READ]);
close(pipeLeft[WRITE]);
close(pipeRight[READ]);
close(pipeRight[WRITE]);
sortFile(getpid(), files[j+1]);
}//end of if
}//end of for - Grandchildren
/*Children Wait for Left GrandChildren*/
/*Pipes for left child*/
dup2(pipeLeft[WRITE], pipeUp[WRITE]);
dup2(pipeLeft[READ], pipeUp[READ]);
dup2(pipeRight[READ], pipeUp[READ]);
close(pipeUp[READ]);
close(pipeLeft[WRITE]);
close(pipeRight[WRITE]);
waitpid(0,&status,0);
waitpid(0,&status,0);
read_pipe(pipeLeft[READ], getpid());
read_pipe(pipeRight[READ], getpid());
}//end of Left Child
/*Parent Waits for Children*/
/*Pipes for Parent*/
//dup2(pipeLeft[READ], pipeUp[READ]); //connect left pipe to up read
//dup2(pipeRight[READ], pipeUp[READ]); //connect right pipe to up read
close(pipeUp[WRITE]);
close(pipeUp[READ]);
close(pipeLeft[WRITE]);
close(pipeRight[WRITE]);
waitpid(0,&status,0);
waitpid(0,&status,0);
read_pipe(pipeLeft[READ], getpid());
read_pipe(pipeRight[READ], getpid());
}//end of Parent
/*Right Side*/
else if (pid == 0) { /* for the child process: */
printf(" Child: my pid = %d, parent pid = %d \n", getpid(), getppid());
myLog = fopen("log.txt", "a+");
fprintf(myLog, " Child: my pid = %d, parent pid = %d \n", getpid(), getppid());
fclose(myLog);
/*Grandchild process*/
for(j=0; j<2; j++){
if( (pid=fork()) ==0){
printf(" Grandchild: my pid = %d, parent pid = %d \n", getpid(), getppid());
myLog = fopen("log.txt", "a+");
fprintf(myLog, " Grandchild: my pid = %d, parent pid = %d \n", getpid(), getppid());
fclose(myLog);
/*Pipes for Right Grandchildren*/
//dup2(pipeUp[WRITE], 1); //redirect standard output to pipeUp[WRITE]
/*First Right Grandkid*/
if(j==0){
dup2(pipeLeft[WRITE], pipeUp[WRITE]);
}
/*Second Right Grandkid*/
else{
dup2(pipeRight[WRITE], pipeUp[WRITE]);
}
close(pipeUp[READ]);
close(pipeLeft[READ]);
close(pipeLeft[WRITE]);
close(pipeRight[READ]);
close(pipeRight[WRITE]);
sortFile(getpid(), files[j+3]);
}//end of if
}//end of for Grandchildren
/*Children Wait for Right GrandChildren*/
/*Pipes for Right Child*/
dup2(pipeRight[WRITE], pipeUp[WRITE]);
dup2(pipeLeft[READ], pipeUp[READ]);
dup2(pipeRight[READ], pipeUp[READ]);
close(pipeUp[READ]);
close(pipeLeft[WRITE]);
close(pipeRight[WRITE]);
waitpid(0,&status,0);
waitpid(0,&status,0);
read_pipe(pipeLeft[READ], getpid());
read_pipe(pipeRight[READ], getpid());
}//end of Right Child
}//end of spawn
