169 lines
3.2 KiB
C++
169 lines
3.2 KiB
C++
#ifndef __UTIL_H
|
|
#define __UTIL_H
|
|
|
|
#include <string>
|
|
#include <list>
|
|
#include <set>
|
|
#include <sstream>
|
|
|
|
#include <sys/types.h>
|
|
#include <dirent.h>
|
|
#include <unistd.h>
|
|
|
|
#include <boost/format.hpp>
|
|
|
|
using namespace std;
|
|
using namespace boost;
|
|
|
|
|
|
class Error : public exception
|
|
{
|
|
protected:
|
|
string err;
|
|
public:
|
|
Error(const format & f);
|
|
~Error() throw () { };
|
|
const char * what() const throw () { return err.c_str(); }
|
|
const string & msg() const throw () { return err; }
|
|
};
|
|
|
|
class SysError : public Error
|
|
{
|
|
public:
|
|
SysError(const format & f);
|
|
};
|
|
|
|
class UsageError : public Error
|
|
{
|
|
public:
|
|
UsageError(const format & f) : Error(f) { };
|
|
};
|
|
|
|
|
|
typedef list<string> Strings;
|
|
typedef set<string> StringSet;
|
|
|
|
|
|
/* Paths are just strings. */
|
|
typedef string Path;
|
|
typedef list<Path> Paths;
|
|
typedef set<Path> PathSet;
|
|
|
|
|
|
/* The canonical system name, as returned by config.guess. */
|
|
extern string thisSystem;
|
|
|
|
|
|
/* Return an absolutized path, resolving paths relative to the
|
|
specified directory, or the current directory otherwise. The path
|
|
is also canonicalised. */
|
|
Path absPath(Path path, Path dir = "");
|
|
|
|
/* Canonicalise a path (as in realpath(3)). */
|
|
Path canonPath(const Path & path);
|
|
|
|
/* Return the directory part of the given path, i.e., everything
|
|
before the final `/'. */
|
|
Path dirOf(const Path & path);
|
|
|
|
/* Return the base name of the given path, i.e., everything following
|
|
the final `/'. */
|
|
string baseNameOf(const Path & path);
|
|
|
|
/* Return true iff the given path exists. */
|
|
bool pathExists(const Path & path);
|
|
|
|
/* Delete a path; i.e., in the case of a directory, it is deleted
|
|
recursively. Don't use this at home, kids. */
|
|
void deletePath(const Path & path);
|
|
|
|
/* Make a path read-only recursively. */
|
|
void makePathReadOnly(const Path & path);
|
|
|
|
/* Create a temporary directory. */
|
|
Path createTempDir();
|
|
|
|
|
|
/* Messages. */
|
|
|
|
typedef enum {
|
|
lvlError,
|
|
lvlTalkative,
|
|
lvlChatty,
|
|
lvlDebug,
|
|
lvlVomit
|
|
} Verbosity;
|
|
|
|
extern Verbosity verbosity; /* supress msgs > this */
|
|
|
|
class Nest
|
|
{
|
|
private:
|
|
bool nest;
|
|
public:
|
|
Nest();
|
|
~Nest();
|
|
void open(Verbosity level, const format & f);
|
|
};
|
|
|
|
void printMsg_(Verbosity level, const format & f);
|
|
|
|
#define startNest(varName, level, f) \
|
|
Nest varName; \
|
|
if (level <= verbosity) { \
|
|
varName.open(level, (f)); \
|
|
}
|
|
|
|
#define printMsg(level, f) \
|
|
do { \
|
|
if (level <= verbosity) { \
|
|
printMsg_(level, (f)); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define debug(f) printMsg(lvlDebug, f)
|
|
|
|
|
|
/* Wrappers arount read()/write() that read/write exactly the
|
|
requested number of bytes. */
|
|
void readFull(int fd, unsigned char * buf, size_t count);
|
|
void writeFull(int fd, const unsigned char * buf, size_t count);
|
|
|
|
|
|
/* Automatic cleanup of resources. */
|
|
|
|
class AutoDelete
|
|
{
|
|
string path;
|
|
bool del;
|
|
public:
|
|
AutoDelete(const string & p);
|
|
~AutoDelete();
|
|
void cancel();
|
|
};
|
|
|
|
class AutoCloseFD
|
|
{
|
|
int fd;
|
|
public:
|
|
AutoCloseFD();
|
|
AutoCloseFD(int fd);
|
|
~AutoCloseFD();
|
|
void operator =(int fd);
|
|
operator int();
|
|
};
|
|
|
|
class AutoCloseDir
|
|
{
|
|
DIR * dir;
|
|
public:
|
|
AutoCloseDir();
|
|
AutoCloseDir(DIR * dir);
|
|
~AutoCloseDir();
|
|
void operator =(DIR * dir);
|
|
operator DIR *();
|
|
};
|
|
|
|
|
|
#endif /* !__UTIL_H */
|