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127 lines
2.8 KiB
C++
127 lines
2.8 KiB
C++
/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997, 1998
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* Sleepycat Software. All rights reserved.
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*/
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#include "config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)cxx_except.cpp 10.6 (Sleepycat) 4/10/98";
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#endif /* not lint */
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#include "db_cxx.h"
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#include "cxx_int.h"
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#include <string.h>
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// tmpString is used to create strings on the stack
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//
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class tmpString
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{
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public:
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tmpString(const char *str1,
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const char *str2 = 0,
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const char *str3 = 0,
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const char *str4 = 0,
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const char *str5 = 0)
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{
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int len = strlen(str1);
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if (str2)
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len += strlen(str2);
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if (str3)
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len += strlen(str3);
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if (str4)
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len += strlen(str4);
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if (str5)
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len += strlen(str5);
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s_ = new char[len+1];
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strcpy(s_, str1);
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if (str2)
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strcat(s_, str2);
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if (str3)
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strcat(s_, str3);
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if (str4)
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strcat(s_, str4);
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if (str5)
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strcat(s_, str5);
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}
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~tmpString() { delete [] s_; }
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operator const char *() { return s_; }
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private:
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char *s_;
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};
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// Note: would not be needed if we can inherit from exception
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// It does not appear to be possible to inherit from exception
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// with the current Microsoft library (VC5.0).
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//
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static char *dupString(const char *s)
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{
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char *r = new char[strlen(s)+1];
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strcpy(r, s);
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return r;
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}
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////////////////////////////////////////////////////////////////////////
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// //
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// DbException //
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// //
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////////////////////////////////////////////////////////////////////////
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DbException::~DbException()
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{
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if (what_)
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delete [] what_;
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}
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DbException::DbException(int err)
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: err_(err)
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{
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what_ = dupString(strerror(err));
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}
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DbException::DbException(const char *description)
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: err_(0)
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{
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what_ = dupString(tmpString(description));
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}
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DbException::DbException(const char *prefix, int err)
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: err_(err)
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{
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what_ = dupString(tmpString(prefix, ": ", strerror(err)));
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}
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DbException::DbException(const char *prefix1, const char *prefix2, int err)
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: err_(err)
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{
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what_ = dupString(tmpString(prefix1, ": ", prefix2, ": ", strerror(err)));
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}
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DbException::DbException(const DbException &that)
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: err_(that.err_)
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{
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what_ = dupString(that.what_);
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}
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DbException &DbException::operator = (const DbException &that)
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{
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err_ = that.err_;
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what_ = dupString(that.what_);
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return *this;
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}
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const int DbException::get_errno()
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{
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return err_;
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}
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const char *DbException::what() const
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{
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return what_;
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}
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