Utils/Exception: Allow to disable ErrnoExceptions via SENF_NO_ERRNOEXC

[senf.git] / Utils / Exception.cci

diff --git a/Utils/Exception.cci b/Utils/Exception.cci
index a9830b5..40d89a5 100644 (file)
--- a/Utils/Exception.cci
+++ b/Utils/Exception.cci
@@ -21,26 +21,80 @@
     \brief Exception inline non-template implementation */
 
 // Custom includes
+#include <errno.h>
+#include <cstring>
 
 #define prefix_ inline
 ///////////////////////////////cci.p///////////////////////////////////////
 
-prefix_  senf::SystemException::SystemException(int err_)
-    : where(0), err(err_)
+prefix_ senf::SystemException::SystemException(SystemException const & other)
+    : std::stringstream(other.str(),std::ios::out), code_(other.code_)
+{}
+
+prefix_ senf::SystemException::SystemException(std::string const & where, int code)
+    : std::stringstream(std::ios::out), code_(code)
+{
+    if (! where.empty())
+        (*this) << where << ": ";
+    (*this) << "(" << code_ << ") " << description();
+}
+
+prefix_ char const * senf::SystemException::what()
+    const throw()
+{
+    /// \fixme Replace the 'stringstream' base-class with our own stream with a specialized
+    /// streambuf which allows to efficiently access the contents as a C string.
+    buffer_ = this->str();
+    return buffer_.c_str();
+}
+
+prefix_ int senf::SystemException::errorNumber()
+    const
+{
+    return code_;
+}
+
+prefix_ char const * senf::SystemException::description()
+    const
 {
-    init();
+    return std::strerror(code_);
 }
 
-prefix_ senf::SystemException::SystemException(char const * where_, int err_)
-    : where(where_), err(err_)
+prefix_ bool senf::SystemException::anyOf(int c0, int c1, int c2, int c3, int c4, int c5,
+                                          int c6, int c7, int c8, int c9)
 {
-    init();
+    return 
+        (c0 && code_ == c0) ||
+        (c1 && code_ == c1) ||
+        (c2 && code_ == c2) ||
+        (c3 && code_ == c3) ||
+        (c4 && code_ == c4) ||
+        (c5 && code_ == c5) ||
+        (c6 && code_ == c6) ||
+        (c7 && code_ == c7) ||
+        (c8 && code_ == c8) ||
+        (c9 && code_ == c9);
 }
 
 prefix_  senf::SystemException::~SystemException()
     throw()
 {}
 
+prefix_ void senf::throwErrno()
+{
+    throwErrno("", errno);
+}
+
+prefix_ void senf::throwErrno(std::string const & where)
+{
+    throwErrno(where, errno);
+}
+
+prefix_ void senf::throwErrno(int code)
+{
+    throwErrno("", code);
+}
+
 ///////////////////////////////cci.e///////////////////////////////////////
 #undef prefix_
 
@@ -52,4 +106,5 @@ prefix_  senf::SystemException::~SystemException()
 // indent-tabs-mode: nil
 // ispell-local-dictionary: "american"
 // compile-command: "scons -u test"
+// comment-column: 40
 // End: