1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/genericopenlibs/cppstdlib/src/stdcpp_support.cpp Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,213 @@
1.4 +// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// Name : stdcpp_support.cpp
1.18 +// Part of : standard c++ library.
1.19 +//
1.20 +//
1.21 +
1.22 +#include <new>
1.23 +#include <stdcpp_support.h>
1.24 +#include <typeinfo>
1.25 +#include <string>
1.26 +#include <stdexcept>
1.27 +
1.28 +
1.29 +EXPORT_C void TranslateSymErrorToCppException(TInt aError)
1.30 +{
1.31 + switch(aError)
1.32 + {
1.33 + case KErrNoMemory:
1.34 + // This is about to use the emergency buffer!
1.35 + __THROW(std::bad_alloc());
1.36 + case KErrArgument:
1.37 + __THROW(std::invalid_argument("Invalid argument"));
1.38 + case KErrOverflow :
1.39 + __THROW(std::overflow_error("Overflow error"));
1.40 + case KErrUnderflow:
1.41 + __THROW(std::underflow_error("Underflow error"));
1.42 + default:
1.43 + __THROW(Symbian_error(KErrGeneral));
1.44 + }
1.45 +}
1.46 +
1.47 +EXPORT_C TInt TranslateCppExceptionToSymError(const std::exception& aThrow)
1.48 +{
1.49 +#ifndef __GCCXML__
1.50 + const std::type_info& atype = typeid(aThrow);
1.51 +
1.52 + if(atype == typeid (std::bad_alloc))
1.53 + return KErrNoMemory;
1.54 + else if(atype == typeid(std::invalid_argument))
1.55 + return KErrArgument;
1.56 + else if(atype == typeid(std::out_of_range))
1.57 + // std::out_of_range is of type logic_error which by definition means that it is
1.58 + // "presumably detectable before the program executes".
1.59 + // std::out_of_range is used to report an argument is not within the expected range.
1.60 + // The description of KErrArgument says an argument is out of range. Hence the mapping.
1.61 + return KErrArgument;
1.62 + else if(atype == typeid(std::overflow_error))
1.63 + return KErrOverflow;
1.64 + else if(atype == typeid(std::underflow_error))
1.65 + return KErrUnderflow;
1.66 + else
1.67 + return KErrGeneral;
1.68 +#else
1.69 + return KErrGeneral;
1.70 +#endif
1.71 +}
1.72 +
1.73 +#ifdef __WINSCW__
1.74 +/*
1.75 + * The StdC++ global new and delete operators defined here. They are done only for the emulator
1.76 + * as for EABI platforms, it is part of the runtime support(i.e., stdnew.dll).
1.77 + */
1.78 +#include <e32std.h>
1.79 +
1.80 +EXPORT_C const std::nothrow_t std::nothrow;
1.81 +
1.82 +EXPORT_C void* operator new(std::size_t a_size) __THROW(std::bad_alloc)
1.83 + {
1.84 + for (;;)
1.85 + {
1.86 + void* p = User::Alloc(a_size);
1.87 +
1.88 + if (p)
1.89 + {
1.90 + return p;
1.91 + }
1.92 + std::new_handler nh_func ;
1.93 + std::new_handler *ptr = reinterpret_cast<std::new_handler*>(Dll::Tls());
1.94 + nh_func = (ptr)?(*ptr):NULL;
1.95 +
1.96 + if (nh_func)
1.97 + {
1.98 + nh_func();
1.99 + }
1.100 + else
1.101 + {
1.102 + __THROW(std::bad_alloc());
1.103 + }
1.104 + }
1.105 + }
1.106 +
1.107 +EXPORT_C void* operator new[](std::size_t a_size) __THROW(std::bad_alloc)
1.108 + {
1.109 + return ::operator new(a_size);
1.110 + }
1.111 +
1.112 +EXPORT_C void* operator new(std::size_t a_size, const std::nothrow_t&) __NO_THROW
1.113 + {
1.114 + for (;;)
1.115 + {
1.116 + void* p = User::Alloc(a_size);
1.117 +
1.118 + if (p)
1.119 + {
1.120 + return p;
1.121 + }
1.122 +
1.123 + std::new_handler nh_func ;
1.124 + std::new_handler *ptr = reinterpret_cast<std::new_handler*>(Dll::Tls());
1.125 + nh_func = (ptr)?(*ptr):NULL;
1.126 +
1.127 + if (nh_func)
1.128 + {
1.129 + try
1.130 + {
1.131 + nh_func();
1.132 + }
1.133 + catch (...)
1.134 + {
1.135 + return 0;
1.136 + }
1.137 + }
1.138 + else
1.139 + {
1.140 + return 0;
1.141 + }
1.142 + }
1.143 + }
1.144 +
1.145 +EXPORT_C void* operator new[](std::size_t a_size, const std::nothrow_t) __NO_THROW
1.146 + {
1.147 + return ::operator new(a_size, std::nothrow);
1.148 + }
1.149 +
1.150 +// Symbian-specific addition.
1.151 +EXPORT_C void* operator new(std::size_t a_size, std::size_t a_extra_size) __NO_THROW
1.152 + {
1.153 + return ::operator new(a_size + a_extra_size, std::nothrow);
1.154 + }
1.155 +
1.156 +EXPORT_C void operator delete(void* p) __NO_THROW
1.157 + {
1.158 + User::Free(p);
1.159 + }
1.160 +
1.161 +EXPORT_C void operator delete(void* p, const std::nothrow_t&) __NO_THROW
1.162 + {
1.163 + User::Free(p);
1.164 + }
1.165 +
1.166 +EXPORT_C void operator delete[](void* p) __NO_THROW
1.167 + {
1.168 + User::Free(p);
1.169 + }
1.170 +
1.171 +EXPORT_C void operator delete[](void* p, const std::nothrow_t&) __NO_THROW
1.172 + {
1.173 + User::Free(p);
1.174 + }
1.175 +
1.176 +// Symbian-specific addition.
1.177 +EXPORT_C void operator delete(void* p, std::size_t) __NO_THROW
1.178 + {
1.179 + User::Free(p);
1.180 + }
1.181 +_LIT(K,"set_new_handler");
1.182 +
1.183 +
1.184 +using std::new_handler;
1.185 +
1.186 +EXPORT_C new_handler std::set_new_handler(new_handler a_new_nh) __NO_THROW
1.187 + {
1.188 + new_handler current_nh;
1.189 + TAny* tls_word_p = Dll::Tls();
1.190 +
1.191 + if (!tls_word_p)
1.192 + {
1.193 + // This is the first time we're called, so we need to set up the TLS.
1.194 +
1.195 + tls_word_p = User::Alloc( sizeof(new_handler) );
1.196 + if ( !tls_word_p )
1.197 + {
1.198 + User::Panic(K, KErrNoMemory);
1.199 + }
1.200 +
1.201 + Dll::SetTls(tls_word_p);
1.202 + current_nh = 0;
1.203 + }
1.204 + else
1.205 + {
1.206 + // Get the currently installed new_handler function.
1.207 + current_nh = *reinterpret_cast<new_handler*>(tls_word_p);
1.208 + }
1.209 +
1.210 + // Set the new new_handler.
1.211 + *reinterpret_cast<new_handler*>(tls_word_p) = a_new_nh;
1.212 +
1.213 + return current_nh;
1.214 + }
1.215 +
1.216 +#endif //__WINSCW__