[text_producer] Made text bounds to be calculated at construction instead of after...

[casparcg] / common / except.cpp

diff --git a/common/except.cpp b/common/except.cpp
index 63ccf7a61de2556fd9f16ca8da18919e98e20bef..7257e79971162bb2fa5663e527e1818bfa975884 100644 (file)
--- a/common/except.cpp
+++ b/common/except.cpp
@@ -1,111 +1,115 @@
+/*
+* 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.hpp>
-
-#include "os/windows/windows.h"
+#include <boost/thread/tss.hpp>
+#include <boost/algorithm/string/join.hpp>
 
-namespace caspar { namespace detail {
+namespace {
 
-typedef struct tagTHREADNAME_INFO
+boost::thread_specific_ptr<std::list<std::string>>& context_stacks_per_thread()
 {
-       DWORD dwType; // must be 0x1000
-       LPCSTR szName; // pointer to name (in user addr space)
-       DWORD dwThreadID; // thread ID (-1=caller thread)
-       DWORD dwFlags; // reserved for future use, must be zero
-} THREADNAME_INFO;
+       static boost::thread_specific_ptr<std::list<std::string>> instances;
 
-inline void SetThreadName(DWORD dwThreadID, LPCSTR szThreadName)
-{
-       THREADNAME_INFO info;
-       {
-               info.dwType = 0x1000;
-               info.szName = szThreadName;
-               info.dwThreadID = dwThreadID;
-               info.dwFlags = 0;
-       }
-       __try
-       {
-               RaiseException( 0x406D1388, 0, sizeof(info)/sizeof(ULONG_PTR), (ULONG_PTR*)&info );
-       }
-       __except (EXCEPTION_CONTINUE_EXECUTION){}       
+       return instances;
 }
 
-} // namespace detail
+}
+
+namespace caspar {
 
-bool& installed_for_thread()
+std::list<std::string>& context_stack_for_thread()
 {
-       static boost::thread_specific_ptr<bool> installed;
+       auto local = context_stacks_per_thread().get();
 
-       auto for_thread = installed.get();
-       
-       if (!for_thread)
+       if (!local)
        {
-               for_thread = new bool(false);
-               installed.reset(for_thread);
+               local = new std::list<std::string>();
+               context_stacks_per_thread().reset(local);
        }
 
-       return *for_thread;
+       return *local;
 }
 
-void win32_exception::install_handler() 
+std::string get_context()
 {
-//#ifndef _DEBUG
-       _set_se_translator(win32_exception::Handler);
-       installed_for_thread() = true;
-//#endif
+       return boost::join(context_stack_for_thread(), "");
 }
 
-void win32_exception::ensure_handler_installed_for_thread(
-               const char* thread_description)
+scoped_context::scoped_context()
+       : scoped_context::scoped_context("")
 {
-       if (!installed_for_thread())
-       {
-               install_handler();
+}
 
-               if (thread_description)
-                       detail::SetThreadName(GetCurrentThreadId(), thread_description);
-       }
+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 win32_exception::Handler(unsigned int errorCode, EXCEPTION_POINTERS* pInfo) {
-       switch(errorCode)
-       {
-       case EXCEPTION_ACCESS_VIOLATION:
-               throw win32_access_violation(*(pInfo->ExceptionRecord));
-               break;
+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"));
 
-       default:
-               throw win32_exception(*(pInfo->ExceptionRecord));
-       }
+       *msg_ = std::move(msg);
 }
 
-win32_exception::win32_exception(const EXCEPTION_RECORD& info) : message_("Win32 exception"), location_(info.ExceptionAddress), errorCode_(info.ExceptionCode)
+void scoped_context::clear_msg()
 {
-       switch(info.ExceptionCode)
-       {
-       case EXCEPTION_ACCESS_VIOLATION:
-               message_ = "Access violation";
-               break;
-       case EXCEPTION_FLT_DIVIDE_BY_ZERO:
-       case EXCEPTION_INT_DIVIDE_BY_ZERO:
-               message_ = "Divide by zero";
-               break;
-       }
+       replace_msg("");
 }
 
-win32_access_violation::win32_access_violation(const EXCEPTION_RECORD& info) : win32_exception(info), isWrite_(false), badAddress_(0) 
+scoped_context::~scoped_context()
 {
-       isWrite_ = info.ExceptionInformation[0] == 1;
-       badAddress_ = reinterpret_cast<win32_exception::address>(info.ExceptionInformation[1]);
+       for_thread_.pop_back();
 }
 
-const char* win32_access_violation::what() const
+
+
+std::string get_message_and_context(const caspar_exception& e)
 {
-       sprintf_s<>(messageBuffer_, "Access violation at %p, trying to %s %p", location(), isWrite_?"write":"read", badAddress_);
+       std::string result;
+
+       auto msg = boost::get_error_info<msg_info_t>(e);
+       auto ctx = boost::get_error_info<context_info_t>(e);
 
-       return messageBuffer_;
+       if (msg)
+               result += *msg;
+
+       if (ctx && !ctx->empty())
+       {
+               result += " (";
+               result += *ctx;
+               result += ")";
+       }
+
+       if (!result.empty() && result.back() != '.')
+               result += ".";
+
+       return result;
 }
 
-}
\ No newline at end of file
+}