libbase/utility.h

   1 // utility.h -- Various little utility functions, macros & typedefs.
   2 //
   3 //   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Free Software
   4 //   Foundation, Inc
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 3 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // This program is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software
  18 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19
  20 #ifndef GNASH_UTILITY_H
  21 #define GNASH_UTILITY_H
  22
  23 // HAVE_FINITE, HAVE_PTHREADS, WIN32, NDEBUG etc.
  24 #ifdef HAVE_CONFIG_H
  25 #include "gnashconfig.h"
  26 #endif
  27
  28 #include <cstdlib>
  29 #include <cassert>
  30 #include <cstring>
  31 #include <string>
  32 #include <typeinfo>
  33
  34 #ifdef HAVE_PTHREADS
  35 #include <pthread.h>
  36 #endif
  37
  38 #if defined(__GNUC__) && __GNUC__ > 2
  39 #  include <cxxabi.h>
  40 #endif
  41
  42 #if defined(_WIN32) || defined(WIN32)
  43 #ifndef NDEBUG
  44
  45 // On windows, replace ANSI assert with our own, for a less annoying
  46 // debugging experience.
  47 #ifndef __MINGW32__
  48 #undef assert
  49 #define assert(x)       if (!(x)) { __asm { int 3 } }
  50 #endif
  51 #endif // not NDEBUG
  52 #endif // _WIN32
  53
  54 #ifdef __amigaos4__
  55 #include <stdio.h> //for FILE * in tu_file.h
  56 #include <fcntl.h> //for fcntl in Socket.cpp
  57 #include <netdb.h> //for hostent in Socket.cpp
  58 #include <netinet/tcp.h> //for TCP_NODELAY in Socket.cpp
  59 #undef UNUSED //to avoid "already defined" messages
  60 #define SHUT_RDWR 0
  61
  62 namespace std
  63 {
  64         typedef std::basic_string<wchar_t> wstring;
  65 };
  66 #endif
  67
  68 #if defined(__HAIKU__)
  69 namespace std {
  70         class wstring : public std::basic_string<char>
  71         {
  72         public:
  73                 wstring(const char *t)
  74                         : std::basic_string<char>(t)
  75                 {
  76                 }
  77                 wstring()
  78                 {
  79                 }
  80                 wstring(const wstring &that)
  81                         : std::basic_string<char>(that.c_str())
  82                 {
  83                 }
  84                 wstring(const std::basic_string<char> &that)
  85                         : std::basic_string<char>(that)
  86                 {
  87                 }
  88         };
  89 };
  90 #endif
  91
  92 namespace gnash {
  93
  94 /// Return (unmangled) name of this instance type. Used for
  95 /// logging in various places.
  96 template <class T>
  97 std::string typeName(const T& inst)
  98 {
  99         std::string typeName = typeid(inst).name();
 100 #if defined(__GNUC__) && __GNUC__ > 2
 101         int status;
 102         char* typeNameUnmangled =
 103                 abi::__cxa_demangle (typeName.c_str(), NULL, NULL,
 104                                      &status);
 105         if (status == 0)
 106         {
 107                 typeName = typeNameUnmangled;
 108                 std::free(typeNameUnmangled);
 109         }
 110 #endif // __GNUC__ > 2
 111         return typeName;
 112 }
 113
 114 /// Used in logging.
 115 #ifdef HAVE_PTHREADS
 116 #else
 117 # ifdef _WIN32
 118 } // end namespace gnash
 119 extern "C" unsigned long int /* DWORD WINAPI */ GetCurrentThreadId(void);
 120 namespace gnash {
 121 # else
 122 /* getpid() */
 123 #include <sys/types.h>
 124 #include <unistd.h>
 125 # endif
 126 #endif
 127
 128 inline unsigned long int /* pthread_t */ get_thread_id(void)
 129 {
 130 #ifdef HAVE_PTHREADS
 131 # ifdef __APPLE_CC__
 132     return reinterpret_cast<unsigned long int>(pthread_self());
 133 # else
 134     // This isn't a proper style C++ cast, but FreeBSD has a problem with
 135     // static_cast for this as pthread_self() returns a pointer. We can
 136     // use that too, this ID is only used for the log file to keep output
 137     // from seperare threads clear.
 138 # ifdef _WIN32
 139     return GetCurrentThreadId();
 140 #else
 141     return (unsigned long int)pthread_self();
 142 #endif
 143 # endif
 144 #else
 145 # ifdef _WIN32
 146     return GetCurrentThreadId();
 147 # else
 148     return static_cast<unsigned long int>(getpid());
 149 # endif
 150 #endif
 151 }
 152
 153 } // namespace gnash
 154
 155 // Handy macro to quiet compiler warnings about unused parameters/variables.
 156 #define UNUSED(x) (x) = (x)
 157
 158 #endif // _GNASH_UTILITY_H
 159
 160
 161 // Local Variables:
 162 // mode: C++
 163 // c-basic-offset: 8
 164 // tab-width: 8
 165 // indent-tabs-mode: t
 166 // End: