diff options
Diffstat (limited to 'contrib/atf/atf-c++/detail/exceptions.cpp')
| -rw-r--r-- | contrib/atf/atf-c++/detail/exceptions.cpp | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/contrib/atf/atf-c++/detail/exceptions.cpp b/contrib/atf/atf-c++/detail/exceptions.cpp new file mode 100644 index 0000000..79c5b48 --- /dev/null +++ b/contrib/atf/atf-c++/detail/exceptions.cpp @@ -0,0 +1,157 @@ +// +// Automated Testing Framework (atf) +// +// Copyright (c) 2007 The NetBSD Foundation, Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND +// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, +// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY +// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE +// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER +// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN +// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// + +#if defined(HAVE_CONFIG_H) +#include "bconfig.h" +#endif + +#include <cstdarg> +#include <cstdio> +#include <cstring> +#include <new> + +extern "C" { +#include "../../atf-c/error.h" +}; + +#include "exceptions.hpp" +#include "sanity.hpp" + +// ------------------------------------------------------------------------ +// The "system_error" type. +// ------------------------------------------------------------------------ + +atf::system_error::system_error(const std::string& who, + const std::string& message, + int sys_err) : + std::runtime_error(who + ": " + message), + m_sys_err(sys_err) +{ +} + +atf::system_error::~system_error(void) + throw() +{ +} + +int +atf::system_error::code(void) + const + throw() +{ + return m_sys_err; +} + +const char* +atf::system_error::what(void) + const + throw() +{ + try { + if (m_message.length() == 0) { + m_message = std::string(std::runtime_error::what()) + ": "; + m_message += ::strerror(m_sys_err); + } + + return m_message.c_str(); + } catch (...) { + return "Unable to format system_error message"; + } +} + +// ------------------------------------------------------------------------ +// Free functions. +// ------------------------------------------------------------------------ + +static +void +throw_libc_error(atf_error_t err) +{ + PRE(atf_error_is(err, "libc")); + + const int ecode = atf_libc_error_code(err); + const std::string msg = atf_libc_error_msg(err); + atf_error_free(err); + throw atf::system_error("XXX", msg, ecode); +} + +static +void +throw_no_memory_error(atf_error_t err) +{ + PRE(atf_error_is(err, "no_memory")); + + atf_error_free(err); + throw std::bad_alloc(); +} + +static +void +throw_unknown_error(atf_error_t err) +{ + PRE(atf_is_error(err)); + + static char buf[4096]; + atf_error_format(err, buf, sizeof(buf)); + atf_error_free(err); + throw std::runtime_error(buf); +} + +void +atf::throw_atf_error(atf_error_t err) +{ + static struct handler { + const char* m_name; + void (*m_func)(atf_error_t); + } handlers[] = { + { "libc", throw_libc_error }, + { "no_memory", throw_no_memory_error }, + { NULL, throw_unknown_error }, + }; + + PRE(atf_is_error(err)); + + handler* h = handlers; + while (h->m_name != NULL) { + if (atf_error_is(err, h->m_name)) { + h->m_func(err); + UNREACHABLE; + } else + h++; + } + // XXX: I'm not sure that raising an "unknown" error is a wise thing + // to do here. The C++ binding is supposed to have feature parity + // with the C one, so all possible errors raised by the C library + // should have their counterpart in the C++ library. Still, removing + // this will require some code auditing that I can't afford at the + // moment. + INV(h->m_name == NULL && h->m_func != NULL); + h->m_func(err); + UNREACHABLE; +} |
