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Merge pull request #11376 from alalek:cv_error_set_terminate

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This commit is contained in:
Alexander Alekhin 2018-04-23 14:51:55 +00:00
commit e82af627ed
1 changed files with 62 additions and 15 deletions
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77
modules/core/src/system.cpp
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@ -71,12 +71,26 @@ static bool param_dumpErrors = utils::getConfigurationParameterBool("OPENCV_DUMP
} // namespace cv } // namespace cv
#ifndef CV_ERROR_SET_TERMINATE_HANDLER // build config option
# if defined(_WIN32)
# define CV_ERROR_SET_TERMINATE_HANDLER 1
# endif
#endif
#if CV_ERROR_SET_TERMINATE_HANDLER == 0
# undef CV_ERROR_SET_TERMINATE_HANDLER
#endif
#ifdef _MSC_VER #ifdef _MSC_VER
# if _MSC_VER >= 1700 # if _MSC_VER >= 1700
# pragma warning(disable:4447) // Disable warning 'main' signature found without threading model # pragma warning(disable:4447) // Disable warning 'main' signature found without threading model
# endif # endif
#endif #endif
#ifdef CV_ERROR_SET_TERMINATE_HANDLER
#include <exception> // std::set_terminate
#include <cstdlib> // std::abort
#endif
#if defined __ANDROID__ || defined __linux__ || defined __FreeBSD__ || defined __HAIKU__ #if defined __ANDROID__ || defined __linux__ || defined __FreeBSD__ || defined __HAIKU__
# include <unistd.h> # include <unistd.h>
# include <fcntl.h> # include <fcntl.h>
@ -925,28 +939,61 @@ int cv_vsnprintf(char* buf, int len, const char* fmt, va_list args)
#endif #endif
} }
static void dumpException(const Exception& exc)
{
const char* errorStr = cvErrorStr(exc.code);
char buf[1 << 12];
cv_snprintf(buf, sizeof(buf),
"OpenCV(%s) Error: %s (%s) in %s, file %s, line %d",
CV_VERSION,
errorStr, exc.err.c_str(), exc.func.size() > 0 ?
exc.func.c_str() : "unknown function", exc.file.c_str(), exc.line);
#ifdef __ANDROID__
__android_log_print(ANDROID_LOG_ERROR, "cv::error()", "%s", buf);
#else
fflush(stdout); fflush(stderr);
fprintf(stderr, "%s\n", buf);
fflush(stderr);
#endif
}
#ifdef CV_ERROR_SET_TERMINATE_HANDLER
static bool cv_terminate_handler_installed = false;
static std::terminate_handler cv_old_terminate_handler;
static cv::Exception cv_terminate_handler_exception;
static bool param_setupTerminateHandler = utils::getConfigurationParameterBool("OPENCV_SETUP_TERMINATE_HANDLER", true);
static void cv_terminate_handler() {
std::cerr << "OpenCV: terminate handler is called! The last OpenCV error is:\n";
dumpException(cv_terminate_handler_exception);
if (false /*cv_old_terminate_handler*/) // buggy behavior is observed with doubled "abort/retry/ignore" windows
cv_old_terminate_handler();
abort();
}
#endif
void error( const Exception& exc ) void error( const Exception& exc )
{ {
#ifdef CV_ERROR_SET_TERMINATE_HANDLER
{
cv::AutoLock lock(getInitializationMutex());
if (!cv_terminate_handler_installed)
{
if (param_setupTerminateHandler)
cv_old_terminate_handler = std::set_terminate(cv_terminate_handler);
cv_terminate_handler_installed = true;
}
cv_terminate_handler_exception = exc;
}
#endif
if (customErrorCallback != 0) if (customErrorCallback != 0)
customErrorCallback(exc.code, exc.func.c_str(), exc.err.c_str(), customErrorCallback(exc.code, exc.func.c_str(), exc.err.c_str(),
exc.file.c_str(), exc.line, customErrorCallbackData); exc.file.c_str(), exc.line, customErrorCallbackData);
else if (param_dumpErrors) else if (param_dumpErrors)
{ {
const char* errorStr = cvErrorStr(exc.code); dumpException(exc);
char buf[1 << 12];
cv_snprintf(buf, sizeof(buf),
"OpenCV(%s) Error: %s (%s) in %s, file %s, line %d",
CV_VERSION,
errorStr, exc.err.c_str(), exc.func.size() > 0 ?
exc.func.c_str() : "unknown function", exc.file.c_str(), exc.line);
#ifdef __ANDROID__
__android_log_print(ANDROID_LOG_ERROR, "cv::error()", "%s", buf);
#else
fflush(stdout); fflush(stderr);
fprintf(stderr, "%s\n", buf);
fflush(stderr);
#endif
} }
if(breakOnError) if(breakOnError)