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ternfs-XTXMarkets/cpp/core/Exception.hpp
2025-09-17 18:20:23 +01:00

120 lines
3.9 KiB
C++

// Copyright 2025 XTX Markets Technologies Limited
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#pragma once
#include <string.h>
#include <string>
#include <sstream>
#include "FormatTuple.hpp"
#include "strerror.h"
#define TERN_EXCEPTION(...) TernException(__LINE__, SHORT_FILE, removeTemplates(__PRETTY_FUNCTION__).c_str(), VALIDATE_FORMAT(__VA_ARGS__))
#define SYSCALL_EXCEPTION(...) SyscallException(__LINE__, SHORT_FILE, removeTemplates(__PRETTY_FUNCTION__).c_str(), errno, VALIDATE_FORMAT(__VA_ARGS__))
#define EXPLICIT_SYSCALL_EXCEPTION(rc, ...) SyscallException(__LINE__, SHORT_FILE, removeTemplates(__PRETTY_FUNCTION__).c_str(), rc, VALIDATE_FORMAT(__VA_ARGS__))
#define FATAL_EXCEPTION(...) FatalException(__LINE__, SHORT_FILE, removeTemplates(__PRETTY_FUNCTION__).c_str(), VALIDATE_FORMAT(__VA_ARGS__))
std::string removeTemplates(const std::string & s);
const char *translateErrno(int _errno);
class AbstractException : public std::exception {
public:
virtual const char *what() const throw() override = 0;
};
class TernException : public AbstractException {
public:
template <typename TFmt, typename ... Args>
TernException(int line, const char *file, const char *function, TFmt fmt, Args ... args);
virtual const char *what() const throw() override;
private:
std::string _msg;
};
class SyscallException : public AbstractException {
public:
template <typename ... Args>
SyscallException(int line, const char *file, const char *function, int capturedErrno, const char *format, Args ... args);
virtual const char *what() const throw() override;
private:
int _errno;
std::string _msg;
};
class FatalException : public AbstractException {
public:
template <typename ... Args>
FatalException(int line, const char *file, const char *function, const char *format, Args ... args);
virtual const char *what() const throw() override;
private:
std::string _msg;
};
class AssertionException : public AbstractException {
public:
template <typename ... Args>
AssertionException(int line, const char *file, const char *function, const char *expr, const char* fmt, Args ... args);
AssertionException(int line, const char *file, const char *function, const char *expr) : AssertionException(line, file, function, expr, nullptr) {}
virtual const char *what() const throw() override { return _msg.c_str(); }
private:
std::string _msg;
};
template <typename TFmt, typename ... Args>
TernException::TernException(int line, const char *file, const char *function, TFmt fmt, Args ... args) {
std::stringstream ss;
ss << "TernException(" << file << "@" << line << " in " << function << "):\n";
format_pack(ss, fmt, args...);
_msg = ss.str();
}
template <typename ... Args>
SyscallException::SyscallException(int line, const char *file, const char *function, int capturedErrno, const char *fmt, Args ... args) :
_errno(capturedErrno)
{
const char* errmsg = safe_strerror(_errno);
std::stringstream ss;
ss << "SyscallException(" << file << "@" << line << ", " << _errno << "/" << translateErrno(_errno) << "=" << errmsg << " in " << function << "): ";
format_pack(ss, fmt, args...);
_msg = ss.str();
}
template <typename ... Args>
FatalException::FatalException(int line, const char *file, const char *function, const char *fmt, Args ... args) {
std::stringstream ss;
ss << "FatalException(" << file << "@" << line << " in " << function << "): ";
format_pack(ss, fmt, args...);
_msg = ss.str();
}
template <typename ... Args>
AssertionException::AssertionException(int line, const char *file, const char *function, const char *expr, const char* fmt, Args ... args) {
std::stringstream ss;
ss << "AssertionException(" << file << "@" << line << " in " << function << "):\n";
ss << "Expected: " << expr;
if (fmt != nullptr && fmt[0] != '\0') {
ss << "\nMessage: ";
format_pack(ss, fmt, args...);
}
_msg = ss.str();
}