1 /* 2 Copyright (c) 2009-2012 250bpm s.r.o. 3 Copyright (c) 2007-2009 iMatix Corporation 4 Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file 5 6 This file is part of Crossroads I/O project. 7 8 Crossroads I/O is free software; you can redistribute it and/or modify it 9 under the terms of the GNU Lesser General Public License as published by 10 the Free Software Foundation; either version 3 of the License, or 11 (at your option) any later version. 12 13 Crossroads is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU Lesser General Public License for more details. 17 18 You should have received a copy of the GNU Lesser General Public License 19 along with this program. If not, see <http://www.gnu.org/licenses/>. 20 */ 21 22 #ifndef __XS_ERR_HPP_INCLUDED__ 23 #define __XS_ERR_HPP_INCLUDED__ 24 25 // Crossroads-specific error codes are defined in xs.h 26 #include "../include/xs/xs.h" 27 28 #include <assert.h> 29 #include <errno.h> 30 #include <string.h> 31 #include <stdlib.h> 32 #include <stdio.h> 33 34 #include "platform.hpp" 35 #include "likely.hpp" 36 37 #ifdef XS_HAVE_WINDOWS 38 #include "windows.hpp" 39 #else 40 #include <netdb.h> 41 #endif 42 43 namespace xs 44 { 45 const char *errno_to_string (int errno_); 46 void xs_abort (const char *errmsg_); 47 } 48 49 #ifdef XS_HAVE_WINDOWS 50 51 namespace xs 52 { 53 const char *wsa_error (); 54 const char *wsa_error_no (int no_); 55 void win_error (char *buffer_, size_t buffer_size_); 56 void wsa_error_to_errno (); 57 } 58 59 // Provides convenient way to check WSA-style errors on Windows. 60 #define wsa_assert(x) \ 61 do {\ 62 if (unlikely (!(x))) {\ 63 const char *errstr = xs::wsa_error ();\ 64 if (errstr != NULL) {\ 65 fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \ 66 __FILE__, __LINE__);\ 67 xs::xs_abort (errstr);\ 68 }\ 69 }\ 70 } while (false) 71 72 // Provides convenient way to assert on WSA-style errors on Windows. 73 #define wsa_assert_no(no) \ 74 do {\ 75 const char *errstr = xs::wsa_error_no (no);\ 76 if (errstr != NULL) {\ 77 fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \ 78 __FILE__, __LINE__);\ 79 xs::xs_abort (errstr);\ 80 }\ 81 } while (false) 82 83 // Provides convenient way to check GetLastError-style errors on Windows. 84 #define win_assert(x) \ 85 do {\ 86 if (unlikely (!(x))) {\ 87 char errstr [256];\ 88 xs::win_error (errstr, 256);\ 89 fprintf (stderr, "Assertion failed: %s (%s:%d)\n", errstr, \ 90 __FILE__, __LINE__);\ 91 xs::xs_abort (errstr);\ 92 }\ 93 } while (false) 94 95 #endif 96 97 // This macro works in exactly the same way as the normal assert. It is used 98 // in its stead because standard assert on Win32 in broken - it prints nothing 99 // when used within the scope of JNI library. 100 #define xs_assert(x) \ 101 do {\ 102 if (unlikely (!(x))) {\ 103 fprintf (stderr, "Assertion failed: %s (%s:%d)\n", #x, \ 104 __FILE__, __LINE__);\ 105 xs::xs_abort (#x);\ 106 }\ 107 } while (false) 108 109 // Provides convenient way to check for errno-style errors. 110 #define errno_assert(x) \ 111 do {\ 112 if (unlikely (!(x))) {\ 113 const char *errstr = strerror (errno);\ 114 fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__);\ 115 xs::xs_abort (errstr);\ 116 }\ 117 } while (false) 118 119 // Provides convenient way to check for POSIX errors. 120 #define posix_assert(x) \ 121 do {\ 122 if (unlikely (x)) {\ 123 const char *errstr = strerror (x);\ 124 fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__);\ 125 xs::xs_abort (errstr);\ 126 }\ 127 } while (false) 128 129 // Provides convenient way to check for errors from getaddrinfo. 130 #define gai_assert(x) \ 131 do {\ 132 if (unlikely (x)) {\ 133 const char *errstr = gai_strerror (x);\ 134 fprintf (stderr, "%s (%s:%d)\n", errstr, __FILE__, __LINE__);\ 135 xs::xs_abort (errstr);\ 136 }\ 137 } while (false) 138 139 // Provides convenient way to check whether memory allocation have succeeded. 140 #define alloc_assert(x) \ 141 do {\ 142 if (unlikely (!x)) {\ 143 fprintf (stderr, "FATAL ERROR: OUT OF MEMORY (%s:%d)\n",\ 144 __FILE__, __LINE__);\ 145 xs::xs_abort ("FATAL ERROR: OUT OF MEMORY");\ 146 }\ 147 } while (false) 148 149 #endif 150 151 152