From 24f410931d76bc37dd575436a7b11a87b6aef0c9 Mon Sep 17 00:00:00 2001
From: Alan Conway <aconway@apache.org>
Date: Thu, 20 Nov 2008 18:29:20 +0000
Subject: Replaced boost.spirit-based URL parser with simple recursive descent
 parser.

boost.spirit has some known thread-safety issues and appears to be causing
qpid clients to crash in several scenarios.

The new parser is trivially thread safe and relatively easy to extend.
It's a simple recursive descent parser, sufficient for simple grammars
like those used in URL formats. It's not intended to be a
full-featured parser framework like spirit.


git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@719317 13f79535-47bb-0310-9956-ffa450edef68
---
 cpp/src/qpid/Address.cpp | 36 ++++++++++++++++++++++++++++++------
 1 file changed, 30 insertions(+), 6 deletions(-)

(limited to 'cpp/src/qpid/Address.cpp')

diff --git a/cpp/src/qpid/Address.cpp b/cpp/src/qpid/Address.cpp
index e278c0295c..ac8c7f30b1 100644
--- a/cpp/src/qpid/Address.cpp
+++ b/cpp/src/qpid/Address.cpp
@@ -18,17 +18,41 @@
 
 #include "Address.h"
 
+#include <ostream>
+
+using namespace std;
+
 namespace qpid {
 
-std::ostream& operator<<(std::ostream& os, const Address& addr) {
-    const TcpAddress *t = addr.get<TcpAddress>();
-    if (t)
-        os << *t;
-    return os;
+TcpAddress::TcpAddress(const std::string& h, uint16_t p): host(h), port(p) {}
+
+struct AddressOstreamVisitor : public boost::static_visitor<ostream&> {
+    ostream& out;
+    AddressOstreamVisitor(ostream& o) : out(o) {}
+    template <class T> ostream& operator()(const T& data) { return out << data; }
+};
+
+ostream& operator<<(ostream& os, const Address& addr) {
+    AddressOstreamVisitor visitor(os);
+    return boost::apply_visitor(visitor, addr.value);
+}
+
+bool operator==(const TcpAddress& x, const TcpAddress& y) {
+    return y.host==x.host && y.port == x.port;
 }
 
-std::ostream& operator<<(std::ostream& os, const TcpAddress& a) {
+ostream& operator<<(ostream& os, const TcpAddress& a) {
     return os << "tcp:" << a.host << ":" << a.port;
 }
 
+ExampleAddress::ExampleAddress(const char c) : data(c) {}
+
+bool operator==(const ExampleAddress& x, const ExampleAddress& y) {
+    return x.data == y.data;
+}
+
+ostream& operator<<(ostream& os, const ExampleAddress& ex) {
+    return os << "example:" << ex.data;
+}
+
 } // namespace qpid
-- 
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