| /* |
| Copyright (c) 2012 Martin Sustrik All rights reserved. |
| Copyright 2016 Garrett D'Amore <garrett@damore.org> |
| |
| Permission is hereby granted, free of charge, to any person obtaining a copy |
| of this software and associated documentation files (the "Software"), |
| to deal in the Software without restriction, including without limitation |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| and/or sell copies of the Software, and to permit persons to whom |
| the Software is furnished to do so, subject to the following conditions: |
| |
| The above copyright notice and this permission notice shall be included |
| in all copies or substantial portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| IN THE SOFTWARE. |
| */ |
| |
| #ifndef NN_ERR_INCLUDED |
| #define NN_ERR_INCLUDED |
| |
| #include <errno.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| /* Include nn.h header to define nanomsg-specific error codes. */ |
| #include "../nn.h" |
| |
| #include "fast.h" |
| |
| #if defined _MSC_VER |
| #define NN_NORETURN __declspec(noreturn) |
| #elif defined __GNUC__ |
| #define NN_NORETURN __attribute__ ((noreturn)) |
| #else |
| #define NN_NORETURN |
| #endif |
| |
| /* Same as system assert(). However, under Win32 assert has some deficiencies. |
| Thus this macro. */ |
| #define nn_assert(x) \ |
| do {\ |
| if (nn_slow (!(x))) {\ |
| nn_backtrace_print (); \ |
| fprintf (stderr, "Assertion failed: %s (%s:%d)\n", #x, \ |
| __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| #define nn_assert_state(obj, state_name) \ |
| do {\ |
| if (nn_slow ((obj)->state != state_name)) {\ |
| nn_backtrace_print (); \ |
| fprintf (stderr, \ |
| "Assertion failed: %d == %s (%s:%d)\n", \ |
| (obj)->state, #state_name, \ |
| __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| /* Checks whether memory allocation was successful. */ |
| #define alloc_assert(x) \ |
| do {\ |
| if (nn_slow (!x)) {\ |
| nn_backtrace_print (); \ |
| fprintf (stderr, "Out of memory (%s:%d)\n",\ |
| __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| /* Check the condition. If false prints out the errno. */ |
| #define errno_assert(x) \ |
| do {\ |
| if (nn_slow (!(x))) {\ |
| nn_backtrace_print (); \ |
| fprintf (stderr, "%s [%d] (%s:%d)\n", nn_err_strerror (errno),\ |
| (int) errno, __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| /* Checks whether supplied errno number is an error. */ |
| #define errnum_assert(cond, err) \ |
| do {\ |
| if (nn_slow (!(cond))) {\ |
| nn_backtrace_print (); \ |
| fprintf (stderr, "%s [%d] (%s:%d)\n", nn_err_strerror (err),\ |
| (int) (err), __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| /* Checks the condition. If false prints out the GetLastError info. */ |
| #define win_assert(x) \ |
| do {\ |
| if (nn_slow (!(x))) {\ |
| char errstr [256];\ |
| DWORD errnum = WSAGetLastError ();\ |
| nn_backtrace_print (); \ |
| nn_win_error ((int) errnum, errstr, 256);\ |
| fprintf (stderr, "%s [%d] (%s:%d)\n",\ |
| errstr, (int) errnum, __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| /* Checks the condition. If false prints out the WSAGetLastError info. */ |
| #define wsa_assert(x) \ |
| do {\ |
| if (nn_slow (!(x))) {\ |
| char errstr [256];\ |
| DWORD errnum = WSAGetLastError ();\ |
| nn_backtrace_print (); \ |
| nn_win_error (errnum, errstr, 256);\ |
| fprintf (stderr, "%s [%d] (%s:%d)\n",\ |
| errstr, (int) errnum, __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| }\ |
| } while (0) |
| |
| /* Assertion-like macros for easier fsm debugging. */ |
| #define nn_fsm_error(message, state, src, type) \ |
| do {\ |
| nn_backtrace_print(); \ |
| fprintf (stderr, "%s: state=%d source=%d action=%d (%s:%d)\n", \ |
| message, state, src, type, __FILE__, __LINE__);\ |
| fflush (stderr);\ |
| nn_err_abort ();\ |
| } while (0) |
| |
| #define nn_fsm_bad_action(state, src, type) nn_fsm_error(\ |
| "Unexpected action", state, src, type) |
| #define nn_fsm_bad_state(state, src, type) nn_fsm_error(\ |
| "Unexpected state", state, src, type) |
| #define nn_fsm_bad_source(state, src, type) nn_fsm_error(\ |
| "Unexpected source", state, src, type) |
| |
| /* Compile-time assert. */ |
| #define CT_ASSERT_HELPER2(prefix, line) prefix##line |
| #define CT_ASSERT_HELPER1(prefix, line) CT_ASSERT_HELPER2(prefix, line) |
| #if defined __COUNTER__ |
| #define CT_ASSERT(x) \ |
| typedef int CT_ASSERT_HELPER1(ct_assert_,__COUNTER__) [(x) ? 1 : -1] |
| #else |
| #define CT_ASSERT(x) \ |
| typedef int CT_ASSERT_HELPER1(ct_assert_,__LINE__) [(x) ? 1 : -1] |
| #endif |
| |
| NN_NORETURN void nn_err_abort (void); |
| int nn_err_errno (void); |
| const char *nn_err_strerror (int errnum); |
| void nn_backtrace_print (void); |
| |
| #ifdef NN_HAVE_WINDOWS |
| int nn_err_wsa_to_posix (int wsaerr); |
| void nn_win_error (int err, char *buf, size_t bufsize); |
| #endif |
| |
| #endif |