*/
+#ifndef DCPOMATIC_EXCEPTIONS_H
+#define DCPOMATIC_EXCEPTIONS_H
+
/** @file src/exceptions.h
* @brief Our exceptions.
*/
#include <stdexcept>
-#include <sstream>
#include <cstring>
+#include <boost/exception/all.hpp>
+#include <boost/filesystem.hpp>
+#include <boost/thread.hpp>
+extern "C" {
+#include <libavutil/pixfmt.h>
+}
/** @class StringError
* @brief A parent class for exceptions using messages held in a std::string
/** @param m Error message.
* @param f Name of the file that this exception concerns.
*/
- FileError (std::string m, std::string f)
+ FileError (std::string m, boost::filesystem::path f)
: StringError (m)
, _file (f)
{}
virtual ~FileError () throw () {}
/** @return name of the file that this exception concerns */
- std::string file () const {
+ boost::filesystem::path file () const {
return _file;
}
private:
/** name of the file that this exception concerns */
- std::string _file;
+ boost::filesystem::path _file;
+};
+
+class JoinError : public StringError
+{
+public:
+ JoinError (std::string s)
+ : StringError (s)
+ {}
};
-
/** @class OpenFileError.
* @brief Indicates that some error occurred when trying to open a file.
{
public:
/** @param f File that we were trying to open */
- OpenFileError (std::string f)
- : FileError ("could not open file " + f, f)
- {}
+ OpenFileError (boost::filesystem::path f);
};
/** @class CreateFileError.
{
public:
/** @param f File that we were trying to create */
- CreateFileError (std::string f)
- : FileError ("could not create file " + f, f)
- {}
+ CreateFileError (boost::filesystem::path f);
};
/** @param f File that we were trying to read from.
* @param e errno value, or 0.
*/
- ReadFileError (std::string f, int e = 0)
- : FileError ("", f)
- {
- std::stringstream s;
- s << "could not read from file " << f;
- if (e) {
- s << " (" << strerror (e) << ")";
- }
- _what = s.str ();
- }
+ ReadFileError (boost::filesystem::path f, int e = 0);
};
/** @class WriteFileError.
/** @param f File that we were trying to write to.
* @param e errno value, or 0.
*/
- WriteFileError (std::string f, int e)
- : FileError ("", f)
- {
- std::stringstream s;
- s << "could not write to file " << f;
- if (e) {
- s << " (" << strerror (e) << ")";
- }
- _what = s.str ();
- }
+ WriteFileError (boost::filesystem::path f, int e);
};
/** @class SettingError.
{
public:
/** @param s Name of setting that was required */
- MissingSettingError (std::string s)
- : SettingError (s, "missing required setting " + s)
- {}
+ MissingSettingError (std::string s);
};
/** @class BadSettingError
: StringError (s)
{}
};
+
+class KDMError : public StringError
+{
+public:
+ KDMError (std::string s)
+ : StringError (s)
+ {}
+};
+
+class PixelFormatError : public StringError
+{
+public:
+ PixelFormatError (std::string o, AVPixelFormat f);
+};
+
+/** An error that occurs while parsing a SubRip file */
+class SubRipError : public FileError
+{
+public:
+ SubRipError (std::string, std::string, boost::filesystem::path);
+};
+
+/** A parent class for classes which have a need to catch and
+ * re-throw exceptions. This is intended for classes
+ * which run their own thread; they should do something like
+ *
+ * void my_thread ()
+ * try {
+ * // do things which might throw exceptions
+ * } catch (...) {
+ * store_current ();
+ * }
+ *
+ * and then in another thread call rethrow(). If any
+ * exception was thrown by my_thread it will be stored by
+ * store_current() and then rethrow() will re-throw it where
+ * it can be handled.
+ */
+class ExceptionStore
+{
+public:
+ void rethrow () {
+ boost::mutex::scoped_lock lm (_mutex);
+ if (_exception) {
+ boost::rethrow_exception (_exception);
+ _exception = boost::exception_ptr ();
+ }
+ }
+
+protected:
+
+ void store_current () {
+ boost::mutex::scoped_lock lm (_mutex);
+ _exception = boost::current_exception ();
+ }
+
+private:
+ boost::exception_ptr _exception;
+ mutable boost::mutex _mutex;
+};
+
+
+
+#endif