--- /dev/null
+/*
+* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
+*
+* This file is part of CasparCG (www.casparcg.com).
+*
+* CasparCG is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* CasparCG is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
+*
+* Author: Robert Nagy, ronag89@gmail.com
+*/
+
+#include "stdafx.h"
+
+#include "except.h"
+
+#include <boost/thread/tss.hpp>
+#include <boost/algorithm/string/join.hpp>
+
+namespace {
+
+boost::thread_specific_ptr<std::list<std::string>>& context_stacks_per_thread()
+{
+ static boost::thread_specific_ptr<std::list<std::string>> instances;
+
+ return instances;
+}
+
+}
+
+namespace caspar {
+
+std::list<std::string>& context_stack_for_thread()
+{
+ auto local = context_stacks_per_thread().get();
+
+ if (!local)
+ {
+ local = new std::list<std::string>();
+ context_stacks_per_thread().reset(local);
+ }
+
+ return *local;
+}
+
+std::string get_context()
+{
+ return boost::join(context_stack_for_thread(), "");
+}
+
+scoped_context::scoped_context()
+ : scoped_context::scoped_context("")
+{
+}
+
+scoped_context::scoped_context(std::string msg)
+ : for_thread_(context_stack_for_thread())
+{
+ for_thread_.push_back(std::move(msg));
+ msg_ = &for_thread_.back();
+}
+
+void scoped_context::replace_msg(std::string msg)
+{
+ if (&for_thread_ != &context_stack_for_thread())
+ CASPAR_THROW_EXCEPTION(invalid_operation() << msg_info("Called from wrong thread"));
+
+ *msg_ = std::move(msg);
+}
+
+void scoped_context::clear_msg()
+{
+ replace_msg("");
+}
+
+scoped_context::~scoped_context()
+{
+ for_thread_.pop_back();
+}
+
+
+
+std::string get_message_and_context(const caspar_exception& e)
+{
+ std::string result;
+
+ auto msg = boost::get_error_info<msg_info_t>(e);
+ auto ctx = boost::get_error_info<context_info_t>(e);
+
+ if (msg)
+ result += *msg;
+
+ if (ctx && !ctx->empty())
+ {
+ result += " (";
+ result += *ctx;
+ result += ")";
+ }
+
+ if (!result.empty() && result.back() != '.')
+ result += ".";
+
+ return result;
+}
+
+}
#include "os/stack_trace.h"
#include <exception>
+#include <list>
+
#include <boost/exception/all.hpp>
#include <boost/exception/error_info.hpp>
#include <boost/throw_exception.hpp>
+#include <boost/noncopyable.hpp>
namespace caspar {
typedef boost::error_info<struct tag_error_info, std::string> error_info_t;
typedef boost::error_info<struct tag_source_info, std::string> source_info_t;
typedef boost::error_info<struct tag_file_name_info, std::string> file_name_info_t;
+typedef boost::error_info<struct tag_context_info, std::string> context_info_t;
template<typename T>
inline arg_name_info_t arg_name_info(const T& str) {return arg_name_info_t(u8(str));}
inline source_info_t source_info(const T& str) {return source_info_t(u8(str));}
template<typename T>
inline file_name_info_t file_name_info(const T& str) {return file_name_info_t(u8(str));}
+template<typename T>
+inline context_info_t context_info(const T& str) {return context_info_t(u8(str));}
typedef boost::error_info<struct tag_line_info, size_t> line_info;
typedef boost::error_info<struct tag_nested_exception_, std::exception_ptr> nested_exception;
struct user_error : virtual caspar_exception {};
struct not_supported : virtual user_error {};
-#define CASPAR_THROW_EXCEPTION(e) BOOST_THROW_EXCEPTION(e << call_stack_info(caspar::get_call_stack()))
+std::string get_context();
+
+class scoped_context : boost::noncopyable
+{
+public:
+ scoped_context();
+ scoped_context(std::string msg);
+ template <typename Str>
+ scoped_context(Str msg)
+ : scoped_context(u8(std::move(msg)))
+ {
+ }
+
+ ~scoped_context();
+ void replace_msg(std::string msg);
+ template <typename Str>
+ void replace_msg(std::string msg)
+ {
+ replace_msg(u8(std::move(msg)));
+ }
+ void clear_msg();
+private:
+ std::list<std::string>& for_thread_;
+ std::string* msg_;
+};
+
+#define _CASPAR_GENERATE_UNIQUE_IDENTIFIER_CAT(name, line) name##line
+#define _CASPAR_GENERATE_UNIQUE_IDENTIFIER(name, line) _CASPAR_GENERATE_UNIQUE_IDENTIFIER_CAT(name, line)
+#define CASPAR_SCOPED_CONTEXT_MSG(ctx_msg) ::caspar::scoped_context _CASPAR_GENERATE_UNIQUE_IDENTIFIER(SCOPED_CONTEXT, __LINE__)(u8(ctx_msg));
+
+#define CASPAR_THROW_EXCEPTION(e) BOOST_THROW_EXCEPTION(e << call_stack_info(caspar::get_call_stack()) << context_info(get_context()))
+
+std::string get_message_and_context(const caspar_exception& e);
}