Removed old files

This commit is contained in:
Claudio Maggioni 2016-03-16 21:20:15 +01:00
parent 75dc64a462
commit e96a300f8e
12 changed files with 14 additions and 470 deletions

14
.gitignore vendored
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@ -1,5 +1,10 @@
#kate directory files
*.directory
#Qt creator .pro.user
*.pro.user
*.cbp
*.txt.user
# Compiled Object files
*.slo
@ -29,3 +34,12 @@
*.exe
*.out
*.app
# cmake
CMakeCache.txt
CMakeFiles
CMakeScripts
Makefile
cmake_install.cmake
install_manifest.txt

17
Msh.pro
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@ -1,17 +0,0 @@
TEMPLATE = app
CONFIG += console c++11
CONFIG -= app_bundle
CONFIG -= qt
SOURCES += main.cpp \
command.cpp \
commands.cpp \
cmds.cpp \
shell.cpp \
commandexecutor.cpp
HEADERS += \
command.h \
shell.h \
cmds.h \
commandexecutor.h

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@ -1,28 +0,0 @@
/**
builtin commands
*/
#include "cmds.h"
using namespace std;
int Cmds::cdExecute(const vector<string>* args, CommandExecutor*){
if (args->operator[](1) == "\0") {
cerr << "expected argument to \"cd\"\n";
} else {
if (chdir(args->operator[](1).c_str()) != 0) {
cerr << "error";
}
}
return 1;
}
int Cmds::exitExecute(const vector<string>*, CommandExecutor*){
return 0; //TODO: better exit signal giving
}
int Cmds::helpExecute(const vector<string>*, CommandExecutor*){
cout << " info" << endl;
return 1;
}

17
cmds.h
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@ -1,17 +0,0 @@
#ifndef CMDS_H
#define CMDS_H
#include "commandexecutor.h"
#include <iostream>
#include <vector>
#include <string>
#include <unistd.h>
using std::string;
using std::vector;
namespace Cmds {
int cdExecute(const vector<string>* args, CommandExecutor*);
int exitExecute(const vector<string>*, CommandExecutor*);
int helpExecute(const vector<string>*, CommandExecutor*);
}
#endif // CMDS_H

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@ -1,34 +0,0 @@
#include "shell.h"
Command::Command(const string& n, int (*funcptr)(const vector<string>* args, CommandExecutor*)) : name(n) , funcCommand(funcptr){
checkObj();
numCom++;
}
int Command::execute(const vector<string>* args, CommandExecutor* ciao){
if(args==nullptr) return -1;
return (*funcCommand)(args, ciao);
}
string Command::getName(){
return this->name;
}
Command::Command(const Command& old) : name(old.name) , funcCommand(old.funcCommand){
checkObj();
numCom++;
}
void Command::checkObj(){
for(unsigned int i=0; i<name.length(); i++){
if(!((name[i]>'a'&&name[i]<'z')||(name[i]>'A'&&name[i]<'Z'))){
throw CommandNameNotValidException();
}
}
}
Command::~Command(){
numCom--;
}
unsigned int Command::numCom = 0;

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@ -1,28 +0,0 @@
#ifndef COMMAND_H
#define COMMAND_H
#include <string>
#include <vector>
#include "shell.h"
#include "commandexecutor.h"
using std::string;
using std::vector;
class Command
{
const string name;
static unsigned int numCom;
int (*funcCommand)(const vector<string>*,CommandExecutor*);
void checkObj();
public:
Command(const string& n, int (*funcptr)(const vector<string>* args, CommandExecutor*));
Command(const Command&);
~Command();
string getName();
int execute(const vector<string>*, CommandExecutor* ciao);
};
class CommandNameNotValidException{};
#endif // COMMAND_H

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@ -1,6 +0,0 @@
#include "commandexecutor.h"
CommandExecutor::CommandExecutor()
{
}

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@ -1,15 +0,0 @@
#ifndef COMMANDEXECUTOR_H
#define COMMANDEXECUTOR_H
#include <vector>
#include <string>
class CommandExecutor
{
public:
virtual int executeCmd(std::vector<std::string>* args) = 0;
virtual int executeCmd(const std::string& args) = 0;
virtual size_t howManyCmds() const = 0;
CommandExecutor();
};
#endif // COMMANDEXECUTOR_H

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@ -1,26 +0,0 @@
#include "shell.h"
Shell::Commands::Commands(Shell* s) : commands(), threadCommands()
{
parent = s;
}
void Shell::Commands::add(Command* cmd, bool isthread){
if(!isthread) commands.push_back(cmd);
else threadCommands.push_back(cmd);
}
size_t Shell::Commands::howMany() const{
return commands.size();
}
int Shell::Commands::launch(const vector<string>* args, bool launchThread){
for(unsigned int i=0; i<(launchThread ? threadCommands.size() : commands.size()); i++){
if((launchThread ? threadCommands[i]->getName() : commands[i]->getName())==args->operator [](0)){
return (launchThread ? threadCommands[i]->execute(args, parent) : commands[i]->execute(args, parent));
}
}
throw CommandNotFoundException();
}

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@ -1,28 +0,0 @@
#include <cstdlib>
#include <iostream>
#include "shell.h"
#include "command.h"
#include "cmds.h"
using namespace std;
using namespace Cmds;
static void setup(Shell *);
int main(int argc, char **argv)
{
string c = "msh-console-test";
string ps = "[msh-console-test]:";
Shell mshConsoleTest(c, ps, &setup);
//add builtin commands
mshConsoleTest.addCmd(new Command("cd", &cdExecute));
mshConsoleTest.addCmd(new Command("exit", &exitExecute));
mshConsoleTest.addCmd(new Command("help", &helpExecute));
mshConsoleTest.launch();
return EXIT_SUCCESS;
}
void setup(Shell *s){
cout << "Now entering in test shell...\n" << endl;
s->executeCmd("stty -ctlecho");
}

196
shell.cpp
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@ -1,196 +0,0 @@
#include "shell.h"
string Shell::getPs() const
{
return ps;
}
void Shell::setPs(const string &value)
{
ps = value;
}
string Shell::getName() const
{
return name;
}
void Shell::setName(const string &value)
{
name = value;
}
Shell::Shell( string n, string ps,void (*s)(Shell*), void (*pss)(Shell*)) : cmds(this)
{
shellSetup = s;
name = n;
this->ps = ps;
shellPostSetup = pss;
notLoop = false;
}
void Shell::launch(){
//launch setup
if(notLoop) {
throw ShellLaunchInSetupException();
return;
}
if(shellSetup!=0) {
notLoop = true;
(*shellSetup)(this);
notLoop = false;
}
//launch loop
string* line;
vector<string>* args;
int status;
do {
bool readSuccess;
do{
cout << ps << " ";
try{
line = read_line();
readSuccess = true;
}
catch (IsUndoingLineException){
cout << "\n";
readSuccess = false;
}
}while(!readSuccess);
args = split_line(line);
status = executeCmd(args);
delete args;
} while (status);
if(shellPostSetup!=0) {
shellPostSetup(this);
}
}
int Shell::launchCmd(vector<string>* args)
{
int status;
pid_t pid = fork();
if (pid == 0) {
//child process
//execute threadCommand
int a;
try {
a=cmds.launch(args, true);
}
catch (CommandNotFoundException){
//execute bash command or program
vector<char *> argv(args->size() + 1);
size_t i;
for (i = 0; i != args->size()-1; ++i)
{
argv[i] = &(args->operator[](i)[0]);
}
argv[i] = NULL;
if((a=execvp(argv[0], argv.data())) == -1) {
cerr << name <<": command " << args->operator [](0) << " not found\n";
}
exit(EXIT_FAILURE);
}
exit(EXIT_SUCCESS);
}
else if (pid < 0) {
// Error forking
cerr << name <<": error forking the process\n";
}
else {
// Parent process
do {
//wait until child finished
waitpid(pid, &status, WUNTRACED);
} while (!WIFEXITED(status) && !WIFSIGNALED(status));
}
return 1;
}
int Shell::executeCmd(vector<string>* args)
{
if (args->operator [](0) == "\0") {
// An empty command was entered.
return 1;
}
int ret;
try {
ret = cmds.launch(args, false);
}
catch(CommandNotFoundException) {
ret = launchCmd(args);
}
return ret;
}
inline int Shell::executeCmd(const std::string &args){
return executeCmd(split_line(&args));
}
void Shell::EofHandler(int){
undoingLine = true;
}
void Shell::setShellSetup(void (*s)(Shell *)){
shellSetup=s;
}
void (*Shell::getShellSetup())(Shell*) {
return shellSetup;
}
void Shell::setShellPostSetup(void (*s)(Shell *)){
shellPostSetup=s;
}
void (*Shell::getShellPostSetup())(Shell*) {
return shellPostSetup;
}
void setEofHandler(void (*funcptr)(int)){
struct sigaction *sa = new struct sigaction();
sa->sa_handler = funcptr;
sa->sa_flags = 0; // not SA_RESTART!;
sigaction(SIGINT, sa, NULL);
delete sa;
}
string* Shell::read_line()
{
string* buffer = new string();
setEofHandler(EofHandler);
getline(cin,*buffer); // get command
cin.clear(); // clear flags
if(undoingLine){
undoingLine=false;
throw IsUndoingLineException();
}
return buffer;
}
vector<string>* Shell::split_line(const string* line)
{
vector<string>* tokens = new vector<string>();
string ln = *line;
istringstream is(ln);
int i;
for(i=0; getline(is, ln, ' '); i++){
tokens->push_back(ln);
}
tokens->push_back("\0");
return tokens;
}
bool Shell::undoingLine = false;
void Shell::addCmd(Command* cmd, bool isthread){
cmds.add(cmd, isthread);
}
size_t Shell::howManyCmds() const{
return cmds.howMany();
}

75
shell.h
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#ifndef SHELL_H
#define SHELL_H
#include <iostream>
#include <sys/wait.h>
#include <unistd.h>
#include <cstdlib>
#include <sstream>
#include <string>
#include <cstring>
#include <vector>
#include <csignal>
#include "command.h"
//#include "commands.h"
#include "commandexecutor.h"
using std::string;
using std::cin;
using std::cout;
using std::cerr;
using std::string;
using std::vector;
using std::istringstream;
using std::nullptr_t;
class Shell : public CommandExecutor
{
class Commands
{
Shell* parent;
vector<Command*> commands; //commands that work the same thread of the shell
vector<Command*> threadCommands; //commands that work on a different thread
public:
Commands(Shell*);
void add(Command*, bool isthread=false);
size_t howMany() const;
int launch(const vector<string>* args, bool launchThread=false);
};
static bool undoingLine;
Commands cmds;
string ps;
string name;
void (*shellSetup)(Shell *);
void (*shellPostSetup)(Shell *);
bool notLoop;
int launchCmd(vector<string>* args);
static void EofHandler(int);
string* read_line();
vector<string>* split_line(const string* line);
class IsUndoingLineException {};
public:
Shell(string n="msh", string ps="MSH$", void (*s)(Shell*)=0, void (*pss)(Shell*)=0);
string getPs() const;
void setPs(const string &value);
string getName() const;
void setName(const string &value);
void launch();
void setShellSetup(void (*)(Shell *));
void (*getShellSetup())(Shell*);
void setShellPostSetup(void (*)(Shell *));
void (*getShellPostSetup())(Shell*);
//for in-shell commands
void addCmd(Command *cmd, bool isThread=false);
size_t howManyCmds() const;
int executeCmd(vector<string>* args);
int executeCmd(const string& args);
//excepsetions
class CommandNotFoundException{};
class ShellLaunchInSetupException{};
};
#endif // SHELL_H