int main() {
char studentName[40];
int studentGrade;
Student * curStudent = NULL;
FILE * studentFile = fopen("test.txt","r");
Tree theTree;
int first = 0;
int shouldContinue = 1;
/* initialize tree */
Initialize (&theTree, (©Student), (&destroyStudent), (&compareStudents));
printf("Initialize()\n");
getTreeInfo(&theTree);
while (fscanf(studentFile,"%s %d",studentName,&studentGrade)==2) {
curStudent = malloc(sizeof(Student));
InitializeStudent(studentName,studentGrade,curStudent);
printf("Insert(%s,%d)\n", studentName,studentGrade);
Insert(&theTree,curStudent);
getTreeInfo(&theTree);
}
fclose(studentFile);
while (shouldContinue == 1) {
void * theStudent = malloc(sizeof(Student));
Student * printStudent;
if (first == 0) {
shouldContinue = Minimum(&theTree,theStudent);
if (shouldContinue == 0)
break;
first++;
} else {
shouldContinue = Successor(&theTree,theStudent);
if (shouldContinue == 0)
break;
}
printStudent = (Student *)theStudent;
printf("%s \t%d%%\n", NameOfStudent(*printStudent),GradeOfStudent(*printStudent));
free(theStudent);
}
Destroy(&theTree);
return 0;
}
void saveTreeToDsik()
{
//write TreeRecord
int fd = -1;
int buf[2014] = {0};
char treeInfo[2048]={0};
getTreeInfo(treeInfo);
printf("%s\n", treeInfo);
fd = open("TreeRecord", O_RDWR);
if (fd == -1)
{
printf("Failed to open 'TreeRecord'!\n");
return;
}
strcpy(buf,treeInfo);
printf("buf :%s\n", buf);
write(fd, buf, 1024);
close(fd);
}
void TestB()
{
char tty_name[] = "/dev_tty1";
int fd_stdin = open(tty_name, O_RDWR);
assert(fd_stdin == 0);
int fd_stdout = open(tty_name, O_RDWR);
assert(fd_stdout == 1);
char rdbuf[128];
char cmd[8];
char filename[120];
char buf[1024];
int m,n;
initFSTree();
printf(" ==================================\n");
printf(" File Manager \n");
printf(" Kernel on Orange's \n\n");
printf(" ==================================\n");
while (1) {
printPath();
printf("$ :");
int r = read(fd_stdin, rdbuf, 70);
rdbuf[r] = 0;
if (strcmp(rdbuf, "i") == 0)
{
char treeInfo[2048] = {0};
getTreeInfo(treeInfo);
printf("%s\n", treeInfo);
}
else if(strcmp(rdbuf, "s") == 0)
{
showTree();
}
else if(strcmp(rdbuf, "p") == 0)
{
printPath();
printf("\n");
}
else if (strcmp(rdbuf, "help") == 0)
{
printf("=============================================================================\n");
printf("Command List :\n");
printf("1. create [filename] : Create a new file \n");
printf("2. read [filename] : Read the file\n");
printf("3. write [filename] : Write at the end of the file\n");
printf("4. delete [filename] : Delete the file\n");
printf("5. help : Display the help message\n");
printf("==============================================================================\n");
}
else if (strcmp(rdbuf, "dir") == 0)
{
printCurrFile();
continue;
}
else
{
int fd;
int i = 0;
int j = 0;
char temp = -1;
while(rdbuf[i]!=' ' && rdbuf[i] != 0)
{
cmd[i] = rdbuf[i];
i++;
}
cmd[i++] = 0;
while(rdbuf[i] != 0)
{
filename[j] = rdbuf[i];
i++;
j++;
}
filename[j] = 0;
if(strcmp(cmd, "mkdir") == 0)
{
createDir(filename);
saveTreeToDsik();
// //write TreeRecord
// char treeInfo[2048]={0};
// getTreeInfo(treeInfo);
// printf("%s\n", treeInfo);
// fd = open("TreeRecord", O_RDWR);
// if (fd == -1)
// {
// printf("Failed to open 'TreeRecord'!\n");
// continue ;
// }
// strcpy(buf,treeInfo);
// printf("buf :%s\n", buf);
// n = write(fd, buf, 1024);
// close(fd);
}
else if(strcmp(cmd, "cd") == 0)
{
//open dir
if(strcmp(filename, "..") == 0)
{
backDir();
}
else
{
openDir(filename);
}
}
else if(strcmp(cmd,"rmdir") == 0)
{
//delete dir
if(isThereFile(filename) == 0)
{
printf("fail to remove dir, not here!\n");
continue;
}
deleteDirRecord(filename);
saveTreeToDsik();
// //write TreeRecord
// char treeInfo[2048]={0};
// getTreeInfo(treeInfo);
// printf("%s\n", treeInfo);
// fd = open("TreeRecord", O_RDWR);
// if (fd == -1)
// {
// printf("Failed to open 'TreeRecord'!\n");
// continue ;
// }
// strcpy(buf,treeInfo);
// printf("buf :%s\n", buf);
// n = write(fd, buf, 1024);
// close(fd);
}
else if (strcmp(cmd, "create") == 0)
{
fd = open(filename, O_CREAT | O_RDWR);
if (fd == -1)
{
printf("Failed to create file! Please check the fileaname!\n");
continue ;
}
buf[0] = 0;
write(fd, buf, 1);
printf("File created: %s (fd %d)\n", filename, fd);
close(fd);
//add to tree currFatherDir
fTreeArray[treeCurrSize].currDir = treeCurrSize;
fTreeArray[treeCurrSize].fatherDir = currFatherDir;
fTreeArray[treeCurrSize].isDir = 0; //not a dir
strcpy(fTreeArray[treeCurrSize].fileName, filename);
treeCurrSize++;
treeCount++;
// showTree();
// char* treeInfo;
// treeInfo = getTreeInfo();
// printf("%d\n", treeCurrSize);
saveTreeToDsik();
// //write TreeRecord
// char treeInfo[2048]={0};
// getTreeInfo(treeInfo);
// printf("%s\n", treeInfo);
// fd = open("TreeRecord", O_RDWR);
// if (fd == -1)
// {
// printf("Failed to open 'TreeRecord'!\n");
// continue ;
// }
// strcpy(buf,treeInfo);
// printf("buf :%s\n", buf);
// n = write(fd, buf, 1024);
// close(fd);
}
else if (strcmp(cmd, "read") == 0)
{
if(isThereFile(filename) == 0)
{
printf("fail to read file, not here!\n");
continue;
}
fd = open(filename, O_RDWR);
if (fd == -1)
{
printf("Failed to open file! Please check the fileaname!\n");
continue ;
}
n = read(fd, buf, 1024);
printf("%s\n", buf);
close(fd);
}
else if (strcmp(cmd, "write") == 0)
{
// if(isThereFile(filename) == 0)
// {
// printf("fail to write file, not here!\n");
// continue;
// }
fd = open(filename, O_RDWR);
if (fd == -1)
{
printf("Failed to open file! Please check the fileaname!\n");
continue ;
}
m = read(fd_stdin, rdbuf,80);
rdbuf[m] = 0;
n = write(fd, rdbuf, m+1);
close(fd);
}
else if (strcmp(cmd, "delete") == 0)
{
if(isThereFile(filename) == 0)
{
printf("fail to delete file, not here!\n");
continue;
}
m=unlink(filename);
if (m == 0)
{
printf("File deleted!\n");
//delete file from tree records, not a dir
int i = 0;
for (; i < treeCurrSize; ++i)
{
if(strcmp(fTreeArray[i].fileName,filename) == 0)
{
fTreeArray[i].currDir = -1;
continue;
}
}
treeCount--;
// showTree();
saveTreeToDsik();
// //write TreeRecord
// char treeInfo[2048]={0};
// getTreeInfo(treeInfo);
// printf("%s\n", treeInfo);
// fd = open("TreeRecord", O_RDWR);
// if (fd == -1)
// {
// printf("Failed to open 'TreeRecord'!\n");
// continue ;
// }
// strcpy(buf,treeInfo);
// printf("buf :%s\n", buf);
// n = write(fd, buf, 1024);
// close(fd);
continue;
}
else
{
printf("Failed to delete file! Please check the fileaname!\n");
continue;
}
}
else
{
printf("Command not found, Please check!\n");
continue;
}
}
}
assert(0); /* never arrive here */
}