From 601d67fd5f5a9e430a59a1930382eae67eb39fb4 Mon Sep 17 00:00:00 2001
From: danieldg <danieldg@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Thu, 14 Jan 2010 18:17:08 +0000
Subject: Move revision information from Version object to a static symbol

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@12256 e03df62e-2008-0410-955e-edbf42e46eb7
---
 include/dynamic.h             |  5 ++++-
 include/modules.h             | 16 +++++++++++-----
 src/commands/cmd_modules.cpp  |  8 +++++++-
 src/dynamic.cpp               | 13 ++++++++++++-
 src/modmanager_dynamic.cpp    |  4 ++--
 src/modules.cpp               | 10 ++++++++--
 src/modules/m_httpd_stats.cpp |  2 +-
 7 files changed, 45 insertions(+), 13 deletions(-)

diff --git a/include/dynamic.h b/include/dynamic.h
index ccb22f8cc..01bdcdec5 100644
--- a/include/dynamic.h
+++ b/include/dynamic.h
@@ -45,7 +45,10 @@ class CoreExport DLLManager : public classbase
 
 	/** Return a module by calling the init function
 	 */
-	Module* callInit();
+	Module* CallInit();
+
+	/** Get detailed version information from the module file */
+	std::string GetVersion();
 };
 
 #endif
diff --git a/include/modules.h b/include/modules.h
index f980caf41..a3f596091 100644
--- a/include/modules.h
+++ b/include/modules.h
@@ -180,17 +180,22 @@ class CoreExport VersionBase
 	/** Module description
 	 */
 	const std::string description;
-	/** Version information.
-	 */
-	const std::string version;
 
 	/** Flags
 	 */
 	const int Flags;
 
+	/** Server linking description string */
+	const std::string link_data;
+
 	/** Initialize version class
 	 */
-	VersionBase(const std::string &desc, int flags = VF_NONE, const std::string& src_rev = VERSION " r" REVISION);
+	VersionBase(const std::string &desc, int flags = VF_NONE);
+
+	virtual ~VersionBase() {}
+
+	/** Return true if the module can link (default is identity comparison) */
+	virtual bool CanLink(const std::string& other_data);
 };
 
 typedef VersionBase<API_VERSION> Version;
@@ -1690,7 +1695,8 @@ struct AllModuleList {
 	extern "C" DllExport Module * MODULE_INIT_SYM() \
 	{ \
 		return new y; \
-	}
+	} \
+	extern "C" const char inspircd_src_version[] = VERSION " r" REVISION;
 #endif
 
 #define COMMAND_INIT(c) MODULE_INIT(CommandModule<c>)
diff --git a/src/commands/cmd_modules.cpp b/src/commands/cmd_modules.cpp
index 27f8246ca..eb93d2927 100644
--- a/src/commands/cmd_modules.cpp
+++ b/src/commands/cmd_modules.cpp
@@ -58,8 +58,14 @@ CmdResult CommandModules::Handle (const std::vector<std::string>&, User *user)
 				if (!(V.Flags & mult))
 					flags[pos] = '-';
 
+#ifdef PURE_STATIC
+			user->SendText(":%s 702 %s :%p %s %s :%s", ServerInstance->Config->ServerName.c_str(),
+				user->nick.c_str(), (void*)m, module_names[i].c_str(), flags.c_str(), V.description.c_str());
+#else
+			std::string srcrev = m->ModuleDLLManager->GetVersion();
 			user->SendText(":%s 702 %s :%p %s %s :%s - %s", ServerInstance->Config->ServerName.c_str(),
-				user->nick.c_str(), (void*)m, module_names[i].c_str(), flags.c_str(), V.description.c_str(), V.version.c_str());
+				user->nick.c_str(), (void*)m, module_names[i].c_str(), flags.c_str(), V.description.c_str(), srcrev.c_str());
+#endif
 		}
 		else
 		{
diff --git a/src/dynamic.cpp b/src/dynamic.cpp
index 719046dbe..ebaaa5191 100644
--- a/src/dynamic.cpp
+++ b/src/dynamic.cpp
@@ -45,7 +45,7 @@ union init_t {
 	Module* (*fptr)();
 };
 
-Module* DLLManager::callInit()
+Module* DLLManager::CallInit()
 {
 	if (!h)
 		return NULL;
@@ -60,3 +60,14 @@ Module* DLLManager::callInit()
 
 	return (*initfn.fptr)();
 }
+
+std::string DLLManager::GetVersion()
+{
+	if (!h)
+		return "";
+
+	const char* srcver = (char*)dlsym(h, "inspircd_src_version");
+	if (srcver)
+		return srcver;
+	return "Unversioned module";
+}
diff --git a/src/modmanager_dynamic.cpp b/src/modmanager_dynamic.cpp
index f6b4617a0..2f686ec96 100644
--- a/src/modmanager_dynamic.cpp
+++ b/src/modmanager_dynamic.cpp
@@ -82,7 +82,7 @@ bool ModuleManager::Load(const char* filename)
 
 	try
 	{
-		newmod = newhandle->callInit();
+		newmod = newhandle->CallInit();
 
 		if (newmod)
 		{
@@ -91,7 +91,7 @@ bool ModuleManager::Load(const char* filename)
 			Version v = newmod->GetVersion();
 
 			ServerInstance->Logs->Log("MODULE", DEFAULT,"New module introduced: %s (Module version %s)%s",
-				filename, v.version.c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
+				filename, newhandle->GetVersion().c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
 
 			Modules[filename_str] = newmod;
 		}
diff --git a/src/modules.cpp b/src/modules.cpp
index 46582fc79..f460a6a28 100644
--- a/src/modules.cpp
+++ b/src/modules.cpp
@@ -26,11 +26,17 @@
 
 // Version is a simple class for holding a modules version number
 template<>
-VersionBase<API_VERSION>::VersionBase(const std::string &modv, int flags, const std::string& rev)
-: description(modv), version(rev), Flags(flags)
+VersionBase<API_VERSION>::VersionBase(const std::string &modv, int flags)
+: description(modv), Flags(flags)
 {
 }
 
+template<>
+bool VersionBase<API_VERSION>::CanLink(const std::string& other_data)
+{
+	return link_data == other_data;
+}
+
 Request::Request(Module* src, Module* dst, const char* idstr)
 : id(idstr), source(src), dest(dst)
 {
diff --git a/src/modules/m_httpd_stats.cpp b/src/modules/m_httpd_stats.cpp
index 23dee0c08..00c6a5d7f 100644
--- a/src/modules/m_httpd_stats.cpp
+++ b/src/modules/m_httpd_stats.cpp
@@ -135,7 +135,7 @@ class ModuleHttpStats : public Module
 				{
 					Module* m = ServerInstance->Modules->Find(i->c_str());
 					Version v = m->GetVersion();
-					data << "<module><name>" << *i << "</name><version>" << v.version << "</version><description>" << Sanitize(v.description) << "</description></module>";
+					data << "<module><name>" << *i << "</name><description>" << Sanitize(v.description) << "</description></module>";
 				}
 				data << "</modulelist><channellist>";
 
-- 
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