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/*
* Copyright (C) 2013 Max Kellermann <max@duempel.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Error.hxx"
#include "Domain.hxx"
#include <system_error>
#ifdef WIN32
#include <windows.h>
#endif
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
const Domain exception_domain("exception");
const Domain errno_domain("errno");
#ifdef WIN32
const Domain win32_domain("win32");
#endif
Error::~Error() {}
void
Error::Set(std::exception_ptr src)
{
try {
/* classify the exception */
std::rethrow_exception(src);
} catch (const std::system_error &se) {
if (se.code().category() == std::system_category()) {
#ifdef WIN32
Set(win32_domain, se.code().value(), se.what());
#else
Set(errno_domain, se.code().value(), se.what());
#endif
} else
Set(exception_domain, se.what());
} catch (const std::exception &e) {
Set(exception_domain, e.what());
} catch (...) {
Set(exception_domain, "Unknown exception");
}
}
void
Error::Set(const Domain &_domain, int _code, const char *_message)
{
domain = &_domain;
code = _code;
message.assign(_message);
}
void
Error::Format2(const Domain &_domain, int _code, const char *fmt, ...)
{
char buffer[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
Set(_domain, _code, buffer);
}
void
Error::FormatPrefix(const char *fmt, ...)
{
char buffer[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
AddPrefix(buffer);
}
void
Error::SetErrno(int e)
{
Set(errno_domain, e, strerror(e));
}
void
Error::SetErrno()
{
SetErrno(errno);
}
void
Error::SetErrno(int e, const char *prefix)
{
Format(errno_domain, e, "%s: %s", prefix, strerror(e));
}
void
Error::SetErrno(const char *prefix)
{
SetErrno(errno, prefix);
}
void
Error::FormatErrno(int e, const char *fmt, ...)
{
char buffer[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
SetErrno(e, buffer);
}
void
Error::FormatErrno(const char *fmt, ...)
{
const int e = errno;
char buffer[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
SetErrno(e, buffer);
}
#ifdef WIN32
void
Error::SetLastError(DWORD _code, const char *prefix)
{
char msg[256];
FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, _code, 0, msg, sizeof(msg), nullptr);
Format(win32_domain, int(_code), "%s: %s", prefix, msg);
}
void
Error::SetLastError(const char *prefix)
{
SetLastError(GetLastError(), prefix);
}
void
Error::FormatLastError(DWORD _code, const char *fmt, ...)
{
char buffer[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
SetLastError(_code, buffer);
}
void
Error::FormatLastError(const char *fmt, ...)
{
DWORD _code = GetLastError();
char buffer[1024];
va_list ap;
va_start(ap, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, ap);
va_end(ap);
SetLastError(_code, buffer);
}
#endif
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