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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* palloc.h
*
*/
#ifndef PEXCEPTION_H_
#define PEXCEPTION_H_
#include "pstring.h"
#include "ptypes.h"
#include <exception>
namespace plib {
//============================================================
// terminate
//============================================================
/*! Terminate the program
*
* \note could be enhanced by setting a termination handler
*/
[[noreturn]] void terminate(const pstring &msg) noexcept;
//============================================================
// exception base
//============================================================
class pexception : public std::exception
{
public:
explicit pexception(const pstring &text);
const pstring &text() { return m_text; }
const char* what() const noexcept override { return m_text.c_str(); }
private:
pstring m_text;
};
class file_e : public plib::pexception
{
public:
file_e(const pstring &fmt, const pstring &filename);
};
class file_open_e : public file_e
{
public:
explicit file_open_e(const pstring &filename);
};
class file_read_e : public file_e
{
public:
explicit file_read_e(const pstring &filename);
};
class file_write_e : public file_e
{
public:
explicit file_write_e(const pstring &filename);
};
class null_argument_e : public plib::pexception
{
public:
explicit null_argument_e(const pstring &argument);
};
class out_of_mem_e : public plib::pexception
{
public:
explicit out_of_mem_e(const pstring &location);
};
/* FIXME: currently only a stub for later use. More use could be added by
* using “-fnon-call-exceptions" and sigaction to enable c++ exception supported.
*/
class fpexception_e : public pexception
{
public:
explicit fpexception_e(const pstring &text);
};
static constexpr unsigned FP_INEXACT = 0x0001;
static constexpr unsigned FP_DIVBYZERO = 0x0002;
static constexpr unsigned FP_UNDERFLOW = 0x0004;
static constexpr unsigned FP_OVERFLOW = 0x0008;
static constexpr unsigned FP_INVALID = 0x00010;
static constexpr unsigned FP_ALL = 0x0001f;
/*
* Catch SIGFPE on linux for debugging purposes.
*/
class fpsignalenabler
{
public:
explicit fpsignalenabler(unsigned fpexceptions);
COPYASSIGNMOVE(fpsignalenabler, delete)
~fpsignalenabler();
/* is the functionality supported ? */
static bool supported();
/* returns last global enable state */
static bool global_enable(bool enable);
private:
int m_last_enabled;
static bool m_enable;
};
} // namespace plib
#endif /* PEXCEPTION_H_ */
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