util/Error: remove obsolete class
This commit is contained in:
Max Kellermann
@@ -1,204 +0,0 @@
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/*
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* Copyright (C) 2013 Max Kellermann <max@duempel.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "Error.hxx"
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#include "Domain.hxx"
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#include <system_error>
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#ifdef WIN32
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#include <windows.h>
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#endif
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#include <errno.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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const Domain exception_domain("exception");
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const Domain errno_domain("errno");
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#ifdef WIN32
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const Domain win32_domain("win32");
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#endif
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Error::~Error() {}
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void
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Error::Set(std::exception_ptr src)
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{
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try {
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/* classify the exception */
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std::rethrow_exception(src);
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} catch (const std::system_error &se) {
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if (se.code().category() == std::system_category()) {
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#ifdef WIN32
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Set(win32_domain, se.code().value(), se.what());
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#else
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Set(errno_domain, se.code().value(), se.what());
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#endif
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} else
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Set(exception_domain, se.what());
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} catch (const std::exception &e) {
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Set(exception_domain, e.what());
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} catch (...) {
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Set(exception_domain, "Unknown exception");
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}
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}
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void
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Error::Set(const Domain &_domain, int _code, const char *_message)
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{
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domain = &_domain;
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code = _code;
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message.assign(_message);
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}
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void
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Error::Format2(const Domain &_domain, int _code, const char *fmt, ...)
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{
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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Set(_domain, _code, buffer);
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}
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void
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Error::FormatPrefix(const char *fmt, ...)
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{
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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AddPrefix(buffer);
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}
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void
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Error::SetErrno(int e)
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{
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Set(errno_domain, e, strerror(e));
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}
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void
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Error::SetErrno()
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{
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SetErrno(errno);
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}
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void
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Error::SetErrno(int e, const char *prefix)
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{
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Format(errno_domain, e, "%s: %s", prefix, strerror(e));
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}
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void
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Error::SetErrno(const char *prefix)
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{
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SetErrno(errno, prefix);
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}
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void
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Error::FormatErrno(int e, const char *fmt, ...)
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{
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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SetErrno(e, buffer);
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}
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void
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Error::FormatErrno(const char *fmt, ...)
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{
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const int e = errno;
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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SetErrno(e, buffer);
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}
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#ifdef WIN32
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void
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Error::SetLastError(DWORD _code, const char *prefix)
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{
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char msg[256];
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FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |
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FORMAT_MESSAGE_IGNORE_INSERTS,
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nullptr, _code, 0, msg, sizeof(msg), nullptr);
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Format(win32_domain, int(_code), "%s: %s", prefix, msg);
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}
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void
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Error::SetLastError(const char *prefix)
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{
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SetLastError(GetLastError(), prefix);
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}
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void
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Error::FormatLastError(DWORD _code, const char *fmt, ...)
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{
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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SetLastError(_code, buffer);
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}
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void
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Error::FormatLastError(const char *fmt, ...)
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{
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DWORD _code = GetLastError();
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char buffer[1024];
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(buffer, sizeof(buffer), fmt, ap);
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va_end(ap);
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SetLastError(_code, buffer);
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}
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#endif
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@@ -1,186 +0,0 @@
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/*
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* Copyright (C) 2013 Max Kellermann <max@duempel.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
|
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
|
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* documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ERROR_HXX
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#define ERROR_HXX
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#include "check.h"
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#include "Compiler.h"
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#include <string>
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#include <utility>
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#include <exception>
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#include <assert.h>
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class Domain;
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/** Domain for std::exception */
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extern const Domain exception_domain;
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extern const Domain errno_domain;
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#ifdef WIN32
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/* fuck WIN32! */
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#include <windows.h>
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#define IgnoreError MPDIgnoreError
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#undef GetMessage
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/**
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* Domain for GetLastError().
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*/
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extern const Domain win32_domain;
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#endif
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/**
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* This class contains information about a runtime error.
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*/
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class Error {
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const Domain *domain;
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int code;
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std::string message;
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public:
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Error():domain(nullptr), code(0) {}
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Error(const Domain &_domain, int _code, const char *_message)
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:domain(&_domain), code(_code), message(_message) {}
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Error(const Domain &_domain, const char *_message)
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:domain(&_domain), code(0), message(_message) {}
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~Error();
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bool IsDefined() const {
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return domain != nullptr;
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}
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void Clear() {
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domain = nullptr;
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}
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const Domain &GetDomain() const {
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assert(IsDefined());
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return *domain;
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}
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bool IsDomain(const Domain &other) const {
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return domain == &other;
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}
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int GetCode() const {
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assert(IsDefined());
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return code;
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}
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const char *GetMessage() const {
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assert(IsDefined());
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return message.c_str();
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}
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void Set(const Error &other) {
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assert(!IsDefined());
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assert(other.IsDefined());
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domain = other.domain;
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code = other.code;
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message = other.message;
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}
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void Set(std::exception_ptr src);
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void Set(const Domain &_domain, int _code, const char *_message);
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void Set(const Domain &_domain, const char *_message) {
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Set(_domain, 0, _message);
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}
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private:
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void Format2(const Domain &_domain, int _code, const char *fmt, ...);
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public:
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template<typename... Args>
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void Format(const Domain &_domain, int _code,
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const char *fmt, Args&&... args) {
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Format2(_domain, _code, fmt, std::forward<Args>(args)...);
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}
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template<typename... Args>
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void Format(const Domain &_domain, const char *fmt, Args&&... args) {
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Format2(_domain, 0, fmt, std::forward<Args>(args)...);
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}
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void AddPrefix(const char *prefix) {
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message.insert(0, prefix);
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}
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gcc_printf(2,3)
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void FormatPrefix(const char *fmt, ...);
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void SetErrno(int e);
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void SetErrno();
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void SetErrno(int e, const char *prefix);
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void SetErrno(const char *prefix);
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gcc_printf(2,3)
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void FormatErrno(const char *prefix, ...);
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gcc_printf(3,4)
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void FormatErrno(int e, const char *prefix, ...);
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#ifdef WIN32
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void SetLastError(DWORD _code, const char *prefix);
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void SetLastError(const char *prefix);
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gcc_printf(3,4)
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void FormatLastError(DWORD code, const char *fmt, ...);
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gcc_printf(2,3)
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void FormatLastError(const char *fmt, ...);
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#endif
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};
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/**
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* Pass a temporary instance of this class to ignore errors.
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*/
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class IgnoreError final {
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Error error;
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public:
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operator Error &() {
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assert(!error.IsDefined());
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return error;
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}
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};
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#endif
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