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//===---------------------- system_error.cpp ------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This was lifted from libc++ and modified for C++03.
//
//===----------------------------------------------------------------------===//
#include "llvm/Config/config.h"
#include "system_error.h"
#include <string>
#include <cstring>
namespace llvm {
// class error_category
error_category::error_category() {
}
error_category::~error_category() {
}
error_condition
error_category::default_error_condition(int ev) const {
return error_condition(ev, *this);
}
bool
error_category::equivalent(int code, const error_condition& condition) const {
return default_error_condition(code) == condition;
}
bool
error_category::equivalent(const error_code& code, int condition) const {
return *this == code.category() && code.value() == condition;
}
std::string
_do_message::message(int ev) const {
return std::string(std::strerror(ev));
}
class _generic_error_category : public _do_message {
public:
virtual const char* name() const;
virtual std::string message(int ev) const;
};
const char*
_generic_error_category::name() const {
return "generic";
}
std::string
_generic_error_category::message(int ev) const {
#ifdef ELAST
if (ev > ELAST)
return std::string("unspecified generic_category error");
#endif // ELAST
return _do_message::message(ev);
}
const error_category&
generic_category() {
static _generic_error_category s;
return s;
}
class _system_error_category : public _do_message {
public:
virtual const char* name() const;
virtual std::string message(int ev) const;
virtual error_condition default_error_condition(int ev) const;
};
const char*
_system_error_category::name() const {
return "system";
}
// std::string _system_error_category::message(int ev) const {
// Is in Platform/system_error.inc
// error_condition _system_error_category::default_error_condition(int ev) const
// Is in Platform/system_error.inc
const error_category&
system_category() {
static _system_error_category s;
return s;
}
// error_condition
std::string
error_condition::message() const {
return _cat_->message(_val_);
}
// error_code
std::string
error_code::message() const {
return _cat_->message(_val_);
}
// system_error
std::string
system_error::_init(const error_code& ec, std::string what_arg) {
if (ec)
{
if (!what_arg.empty())
what_arg += ": ";
what_arg += ec.message();
}
return what_arg;
}
system_error::system_error(error_code ec, const std::string& what_arg)
: runtime_error(_init(ec, what_arg)), _ec_(ec) {
}
system_error::system_error(error_code ec, const char* what_arg)
: runtime_error(_init(ec, what_arg)), _ec_(ec) {
}
system_error::system_error(error_code ec)
: runtime_error(_init(ec, "")), _ec_(ec) {
}
system_error::system_error(int ev, const error_category& ecat,
const std::string& what_arg)
: runtime_error(_init(error_code(ev, ecat), what_arg))
, _ec_(error_code(ev, ecat)) {
}
system_error::system_error(int ev, const error_category& ecat,
const char* what_arg)
: runtime_error(_init(error_code(ev, ecat), what_arg))
, _ec_(error_code(ev, ecat)) {
}
system_error::system_error(int ev, const error_category& ecat)
: runtime_error(_init(error_code(ev, ecat), "")), _ec_(error_code(ev, ecat)) {
}
system_error::~system_error() throw() {
}
void
_throw_system_error(int ev, const char* what_arg) {
throw system_error(error_code(ev, system_category()), what_arg);
}
} // end namespace llvm
#ifdef LLVM_ON_WIN32
#include <Windows.h>
#include <WinError.h>
namespace llvm {
std::string
_system_error_category::message(int ev) const {
LPVOID lpMsgBuf = 0;
DWORD retval = ::FormatMessageA(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
ev,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
(LPSTR) &lpMsgBuf,
0,
NULL);
if (retval == 0) {
::LocalFree(lpMsgBuf);
return std::string("Unknown error");
}
std::string str( static_cast<LPCSTR>(lpMsgBuf) );
::LocalFree(lpMsgBuf);
while (str.size()
&& (str[str.size()-1] == '\n' || str[str.size()-1] == '\r'))
str.erase( str.size()-1 );
if (str.size() && str[str.size()-1] == '.')
str.erase( str.size()-1 );
return str;
}
error_condition
_system_error_category::default_error_condition(int ev) const {
switch (ev)
{
case 0: return make_error_condition(errc::success);
// Windows system -> posix_errno decode table ---------------------------//
// see WinError.h comments for descriptions of errors
case ERROR_ACCESS_DENIED: return make_error_condition(errc::permission_denied);
case ERROR_ALREADY_EXISTS: return make_error_condition(errc::file_exists);
case ERROR_BAD_UNIT: return make_error_condition(errc::no_such_device);
case ERROR_BUFFER_OVERFLOW: return make_error_condition(errc::filename_too_long);
case ERROR_BUSY: return make_error_condition(errc::device_or_resource_busy);
case ERROR_BUSY_DRIVE: return make_error_condition(errc::device_or_resource_busy);
case ERROR_CANNOT_MAKE: return make_error_condition(errc::permission_denied);
case ERROR_CANTOPEN: return make_error_condition(errc::io_error);
case ERROR_CANTREAD: return make_error_condition(errc::io_error);
case ERROR_CANTWRITE: return make_error_condition(errc::io_error);
case ERROR_CURRENT_DIRECTORY: return make_error_condition(errc::permission_denied);
case ERROR_DEV_NOT_EXIST: return make_error_condition(errc::no_such_device);
case ERROR_DEVICE_IN_USE: return make_error_condition(errc::device_or_resource_busy);
case ERROR_DIR_NOT_EMPTY: return make_error_condition(errc::directory_not_empty);
case ERROR_DIRECTORY: return make_error_condition(errc::invalid_argument);
case ERROR_DISK_FULL: return make_error_condition(errc::no_space_on_device);
case ERROR_FILE_EXISTS: return make_error_condition(errc::file_exists);
case ERROR_FILE_NOT_FOUND: return make_error_condition(errc::no_such_file_or_directory);
case ERROR_HANDLE_DISK_FULL: return make_error_condition(errc::no_space_on_device);
case ERROR_INVALID_ACCESS: return make_error_condition(errc::permission_denied);
case ERROR_INVALID_DRIVE: return make_error_condition(errc::no_such_device);
case ERROR_INVALID_FUNCTION: return make_error_condition(errc::function_not_supported);
case ERROR_INVALID_HANDLE: return make_error_condition(errc::invalid_argument);
case ERROR_INVALID_NAME: return make_error_condition(errc::invalid_argument);
case ERROR_LOCK_VIOLATION: return make_error_condition(errc::no_lock_available);
case ERROR_LOCKED: return make_error_condition(errc::no_lock_available);
case ERROR_NEGATIVE_SEEK: return make_error_condition(errc::invalid_argument);
case ERROR_NOACCESS: return make_error_condition(errc::permission_denied);
case ERROR_NOT_ENOUGH_MEMORY: return make_error_condition(errc::not_enough_memory);
case ERROR_NOT_READY: return make_error_condition(errc::resource_unavailable_try_again);
case ERROR_NOT_SAME_DEVICE: return make_error_condition(errc::cross_device_link);
case ERROR_OPEN_FAILED: return make_error_condition(errc::io_error);
case ERROR_OPEN_FILES: return make_error_condition(errc::device_or_resource_busy);
case ERROR_OPERATION_ABORTED: return make_error_condition(errc::operation_canceled);
case ERROR_OUTOFMEMORY: return make_error_condition(errc::not_enough_memory);
case ERROR_PATH_NOT_FOUND: return make_error_condition(errc::no_such_file_or_directory);
case ERROR_READ_FAULT: return make_error_condition(errc::io_error);
case ERROR_RETRY: return make_error_condition(errc::resource_unavailable_try_again);
case ERROR_SEEK: return make_error_condition(errc::io_error);
case ERROR_SHARING_VIOLATION: return make_error_condition(errc::permission_denied);
case ERROR_TOO_MANY_OPEN_FILES: return make_error_condition(errc::too_many_files_open);
case ERROR_WRITE_FAULT: return make_error_condition(errc::io_error);
case ERROR_WRITE_PROTECT: return make_error_condition(errc::permission_denied);
case ERROR_SEM_TIMEOUT: return make_error_condition(errc::timed_out);
case WSAEACCES: return make_error_condition(errc::permission_denied);
case WSAEADDRINUSE: return make_error_condition(errc::address_in_use);
case WSAEADDRNOTAVAIL: return make_error_condition(errc::address_not_available);
case WSAEAFNOSUPPORT: return make_error_condition(errc::address_family_not_supported);
case WSAEALREADY: return make_error_condition(errc::connection_already_in_progress);
case WSAEBADF: return make_error_condition(errc::bad_file_descriptor);
case WSAECONNABORTED: return make_error_condition(errc::connection_aborted);
case WSAECONNREFUSED: return make_error_condition(errc::connection_refused);
case WSAECONNRESET: return make_error_condition(errc::connection_reset);
case WSAEDESTADDRREQ: return make_error_condition(errc::destination_address_required);
case WSAEFAULT: return make_error_condition(errc::bad_address);
case WSAEHOSTUNREACH: return make_error_condition(errc::host_unreachable);
case WSAEINPROGRESS: return make_error_condition(errc::operation_in_progress);
case WSAEINTR: return make_error_condition(errc::interrupted);
case WSAEINVAL: return make_error_condition(errc::invalid_argument);
case WSAEISCONN: return make_error_condition(errc::already_connected);
case WSAEMFILE: return make_error_condition(errc::too_many_files_open);
case WSAEMSGSIZE: return make_error_condition(errc::message_size);
case WSAENAMETOOLONG: return make_error_condition(errc::filename_too_long);
case WSAENETDOWN: return make_error_condition(errc::network_down);
case WSAENETRESET: return make_error_condition(errc::network_reset);
case WSAENETUNREACH: return make_error_condition(errc::network_unreachable);
case WSAENOBUFS: return make_error_condition(errc::no_buffer_space);
case WSAENOPROTOOPT: return make_error_condition(errc::no_protocol_option);
case WSAENOTCONN: return make_error_condition(errc::not_connected);
case WSAENOTSOCK: return make_error_condition(errc::not_a_socket);
case WSAEOPNOTSUPP: return make_error_condition(errc::operation_not_supported);
case WSAEPROTONOSUPPORT: return make_error_condition(errc::protocol_not_supported);
case WSAEPROTOTYPE: return make_error_condition(errc::wrong_protocol_type);
case WSAETIMEDOUT: return make_error_condition(errc::timed_out);
case WSAEWOULDBLOCK: return make_error_condition(errc::operation_would_block);
default: return error_condition(ev, system_category());
}
}
} // end namespace llvm
#endif // LLVM_ON_WIN32
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