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#ifndef __EXCEPTIONS_H__
#define __EXCEPTIONS_H__
#ifdef __cplusplus
#include <stdio.h>
#include <unistd.h>
#include <stddef.h>
#include <string.h>
#include <stdlib.h>
class GeneralException;
char * xstrdup(const char *);
void * xmalloc(size_t) throw (GeneralException);
void xfree(void *&);
void * xrealloc(void *, size_t);
int xpipe(int *, int = 0) throw (GeneralException);
pid_t xfork() throw (GeneralException);
class String;
class Base {
public:
static char * strdup(const char * s) {
return xstrdup(s);
}
static void * malloc(ssize_t s) {
return xmalloc(s);
}
static void * realloc(void * p, size_t s) {
return xrealloc(p, s);
}
static void * calloc(size_t n, size_t s) {
return xmalloc(n * s);
}
void * operator new(size_t s) {
return xmalloc(s);
}
void * operator new(size_t s, void * p) {
return memset(p, 0, s);
}
void operator delete(void * p) {
xfree(p);
}
static void free(void *& p) {
xfree(p);
}
static void free(char *& p) {
xfree((void *) p);
}
static int pipe(int * p, int flag = 0) {
return xpipe(p, flag);
}
static pid_t fork() {
return xfork();
}
};
class GeneralException : public Base {
public:
GeneralException(String);
GeneralException(const GeneralException &);
~GeneralException();
char * GetMsg();
protected:
GeneralException();
char * msg;
static char t[BUFSIZ];
};
class MemoryException : public GeneralException {
public:
MemoryException(ssize_t);
};
enum op_t {
IO_WRITE = 1,
IO_READ
};
class IOGeneral : public GeneralException {
public:
IOGeneral(String);
protected:
IOGeneral();
};
class IOException : public IOGeneral {
public:
IOException(String, op_t, ssize_t);
};
class IOAgain : public IOGeneral {
public:
IOAgain();
};
class TaskSwitch : public GeneralException {
public:
TaskSwitch();
};
#include <String.h>
#else
#error This only works with a C++ compiler
#endif
#endif
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