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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997, 1998, 1999, 2000
* Sleepycat Software. All rights reserved.
*/
#include "db_config.h"
#ifndef lint
static const char revid[] = "$Id: cxx_except.cpp,v 11.7 2000/09/21 15:05:45 dda Exp $";
#endif /* not lint */
#include <string.h>
#include "db_cxx.h"
#include "cxx_int.h"
// tmpString is used to create strings on the stack
//
class tmpString
{
public:
tmpString(const char *str1,
const char *str2 = 0,
const char *str3 = 0,
const char *str4 = 0,
const char *str5 = 0)
{
int len = strlen(str1);
if (str2)
len += strlen(str2);
if (str3)
len += strlen(str3);
if (str4)
len += strlen(str4);
if (str5)
len += strlen(str5);
s_ = new char[len+1];
strcpy(s_, str1);
if (str2)
strcat(s_, str2);
if (str3)
strcat(s_, str3);
if (str4)
strcat(s_, str4);
if (str5)
strcat(s_, str5);
}
~tmpString() { delete [] s_; }
operator const char *() { return (s_); }
private:
char *s_;
};
// Note: would not be needed if we can inherit from exception
// It does not appear to be possible to inherit from exception
// with the current Microsoft library (VC5.0).
//
static char *dupString(const char *s)
{
char *r = new char[strlen(s)+1];
strcpy(r, s);
return (r);
}
////////////////////////////////////////////////////////////////////////
// //
// DbException //
// //
////////////////////////////////////////////////////////////////////////
DbException::~DbException()
{
if (what_)
delete [] what_;
}
DbException::DbException(int err)
: err_(err)
{
what_ = dupString(db_strerror(err));
}
DbException::DbException(const char *description)
: err_(0)
{
what_ = dupString(tmpString(description));
}
DbException::DbException(const char *prefix, int err)
: err_(err)
{
what_ = dupString(tmpString(prefix, ": ", db_strerror(err)));
}
DbException::DbException(const char *prefix1, const char *prefix2, int err)
: err_(err)
{
what_ = dupString(tmpString(prefix1, ": ", prefix2, ": ", db_strerror(err)));
}
DbException::DbException(const DbException &that)
: err_(that.err_)
{
what_ = dupString(that.what_);
}
DbException &DbException::operator = (const DbException &that)
{
if (this != &that) {
err_ = that.err_;
if (what_)
delete [] what_;
what_ = 0; // in case new throws exception
what_ = dupString(that.what_);
}
return (*this);
}
int DbException::get_errno() const
{
return (err_);
}
const char *DbException::what() const
{
return (what_);
}
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