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/*
* Copyright © 2024 Michael Smith <mikesmiffy128@gmail.com>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef INC_ERRMSG_H
#define INC_ERRMSG_H
#ifdef _WIN32
#include <stdarg.h>
// note: redundant declspec avoids warnings if Windows.h was also included
__declspec(dllimport) unsigned long __stdcall FormatMessageA(unsigned long,
const void *, unsigned long, unsigned long, char *, unsigned long,
va_list *);
#endif
#include "con_.h"
#include "os.h"
extern const char msg_note[], msg_warn[], msg_error[];
#define _ERRMSG_STR1(x) #x
#define _ERRMSG_STR(x) _ERRMSG_STR1(x)
#ifdef MODULE_NAME
#define _errmsg_msg(mod, msg, s, ...) \
con_warn("sst: %s: %s" s ": %s\n", mod, msg, __VA_ARGS__)
// XXX: can we avoid using the ##__VA_ARGS__ extension here somehow?
#define _errmsg_msgx(mod, msg, s, ...) \
con_warn("sst: %s: %s" s "\n", mod, msg, ##__VA_ARGS__)
#else
// dumb hack: we don't want sst.c to say "sst: sst:" - easier to just drop the
// module parameter here so all the stuff below can just remain the same
#define _errmsg_msg(ignored, msg, s, ...) \
con_warn("sst: %s" s ": %s\n", msg, __VA_ARGS__)
#define _errmsg_msgx(ignored, msg, s, ...) \
con_warn("sst: %s" s "\n", msg, ##__VA_ARGS__)
#endif
#define _errmsg_std(msg, ...) \
_errmsg_msg(_ERRMSG_STR(MODULE_NAME), msg, __VA_ARGS__, strerror(errno))
#define _errmsg_x(msg, ...) \
_errmsg_msgx(_ERRMSG_STR(MODULE_NAME), msg, __VA_ARGS__)
#ifdef _WIN32
#define _errmsg_sys(msg, ...) do { \
char _errmsg_buf[512]; \
FormatMessageA(/*FORMAT_MESSAGE_FROM_SYSTEM*/ 4096, 0, os_lasterror(), \
/*MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT)*/ 1024, _errmsg_buf, \
sizeof(_errmsg_buf), 0); \
_errmsg_msg(_ERRMSG_STR(MODULE_NAME), msg, __VA_ARGS__, _errmsg_buf); \
} while (0)
#define _errmsg_dl _errmsg_sys
#else
#define _errmsg_sys _errmsg_std
static inline const char *_errmsg_dlerror(void) {
char *dlerror(void);
const char *e = dlerror();
if (!e) return "Unknown error"; // just in case, better avoid weirdness!
return e;
}
#define _errmsg_dl(msg, ...) \
_errmsg_msg(_ERRMSG_STR(MODULE_NAME), msg, __VA_ARGS__, _errmsg_dlerror());
#endif
// Reminder: will need add warnsock/errsock if we ever do stuff with sockets,
// because of Windows's WSAGetLastError() abomination.
#define errmsg_warnstd(...) _errmsg_std(msg_warn, __VA_ARGS__)
#define errmsg_warnsys(...) _errmsg_sys(msg_warn, __VA_ARGS__)
#define errmsg_warndl(...) _errmsg_dl(msg_warn, __VA_ARGS__)
#define errmsg_warnx(...) _errmsg_x(msg_warn, __VA_ARGS__)
#define errmsg_errorstd(...) _errmsg_std(msg_error, __VA_ARGS__)
#define errmsg_errorsys(...) _errmsg_sys(msg_error, __VA_ARGS__)
#define errmsg_errordl(...) _errmsg_dl(msg_error, __VA_ARGS__)
#define errmsg_errorx(...) _errmsg_x(msg_error, __VA_ARGS__)
#define errmsg_note(...) _errmsg_x(msg_note, __VA_ARGS__)
#endif
// vi: sw=4 ts=4 noet tw=80 cc=80
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