From 5ed2428b3c86a60b9b836446a5274cc5cf395783 Mon Sep 17 00:00:00 2001 From: "Michael J. Spencer" Date: Tue, 16 Nov 2010 18:31:52 +0000 Subject: This is the first step in adding sane error handling support to LLVMSystem. The system API's will be shifted over to returning an error_code, and returning other return values as out parameters to the function. Code that needs to check error conditions will use the errc enum values which are the same as the posix_errno defines (EBADF, E2BIG, etc...), and are compatable with the error codes in WinError.h due to some magic in system_error. An example would be: if (error_code ec = KillEvil("Java")) { // error_code can be converted to bool. handle_error(ec); } llvm-svn: 119360 --- llvm/lib/System/Unix/system_error.inc | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 llvm/lib/System/Unix/system_error.inc (limited to 'llvm/lib/System/Unix') diff --git a/llvm/lib/System/Unix/system_error.inc b/llvm/lib/System/Unix/system_error.inc new file mode 100644 index 00000000000..a382214877f --- /dev/null +++ b/llvm/lib/System/Unix/system_error.inc @@ -0,0 +1,34 @@ +//===- llvm/System/Unix/system_error.inc - Unix error_code ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file provides the Unix specific implementation of the error_code +// and error_condition classes. +// +//===----------------------------------------------------------------------===// + +//===----------------------------------------------------------------------===// +//=== WARNING: Implementation here must contain only generic UNIX code that +//=== is guaranteed to work on *all* UNIX variants. +//===----------------------------------------------------------------------===// + +using namespace llvm; + +std::string +_system_error_category::message(int ev) const { + return _do_message::message(ev); +} + +error_condition +_system_error_category::default_error_condition(int ev) const { +#ifdef ELAST + if (ev > ELAST) + return error_condition(ev, system_category()); +#endif // ELAST + return error_condition(ev, generic_category()); +} -- cgit v1.2.3