//
// The *Explicit functions take an explicit value for errno.
+inline std::system_error makeSystemErrorExplicit(int err, const char* msg) {
+ // TODO: The C++ standard indicates that std::generic_category() should be
+ // used for POSIX errno codes.
+ //
+ // We should ideally change this to use std::generic_category() instead of
+ // std::system_category(). However, undertaking this change will require
+ // updating existing call sites that currently catch exceptions thrown by
+ // this code and currently expect std::system_category.
+ return std::system_error(err, std::system_category(), msg);
+}
+
+template <class... Args>
+std::system_error makeSystemErrorExplicit(int err, Args&&... args) {
+ return makeSystemErrorExplicit(
+ err, to<fbstring>(std::forward<Args>(args)...).c_str());
+}
+
+inline std::system_error makeSystemError(const char* msg) {
+ return makeSystemErrorExplicit(errno, msg);
+}
+
+template <class... Args>
+std::system_error makeSystemError(Args&&... args) {
+ return makeSystemErrorExplicit(errno, std::forward<Args>(args)...);
+}
+
// Helper to throw std::system_error
[[noreturn]] inline void throwSystemErrorExplicit(int err, const char* msg) {
- throw std::system_error(err, std::system_category(), msg);
+ throw makeSystemErrorExplicit(err, msg);
}
template <class... Args>
[[noreturn]] void throwSystemErrorExplicit(int err, Args&&... args) {
- throwSystemErrorExplicit(
- err, to<fbstring>(std::forward<Args>(args)...).c_str());
+ throw makeSystemErrorExplicit(err, std::forward<Args>(args)...);
}
// Helper to throw std::system_error from errno and components of a string
} \
} while (0)
-} // namespace folly
+} // namespace folly