Second Life viewer sources 1.22.0-RC

1 files changed, 131 insertions, 0 deletions

diff --git a/linden/indra/newview/llappviewerlinux_api_dbus.cpp b/linden/indra/newview/llappviewerlinux_api_dbus.cpp
new file mode 100644
index 0000000..806714f
--- /dev/null
+++ b/linden/indra/newview/llappviewerlinux_api_dbus.cpp
@@ -0,0 +1,131 @@
+/** 
+ * @file llappviewerlinux_api_dbus.cpp
+ * @brief dynamic DBus symbol-grabbing code
+ *
+ * $LicenseInfo:firstyear=2008&license=viewergpl$
+ * 
+ * Copyright (c) 2008, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#if LL_DBUS_ENABLED
+
+#include "linden_common.h"
+
+extern "C" {
+#include <dbus/dbus-glib.h>
+
+#include "apr_pools.h"
+#include "apr_dso.h"
+}
+
+#define DEBUGMSG(...) lldebugs << llformat(__VA_ARGS__) << llendl
+#define INFOMSG(...) llinfos << llformat(__VA_ARGS__) << llendl
+#define WARNMSG(...) llwarns << llformat(__VA_ARGS__) << llendl
+
+#define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) RTN (*ll##DBUSSYM)(__VA_ARGS__) = NULL
+#include "llappviewerlinux_api_dbus_syms_raw.inc"
+#undef LL_DBUS_SYM
+
+static bool sSymsGrabbed = false;
+static apr_pool_t *sSymDBUSDSOMemoryPool = NULL;
+static apr_dso_handle_t *sSymDBUSDSOHandleG = NULL;
+
+bool grab_dbus_syms(std::string dbus_dso_name)
+{
+        if (sSymsGrabbed)
+        {
+                // already have grabbed good syms
+                return TRUE;
+        }
+
+        bool sym_error = false;
+        bool rtn = false;
+        apr_status_t rv;
+        apr_dso_handle_t *sSymDBUSDSOHandle = NULL;
+
+#define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) do{rv = apr_dso_sym((apr_dso_handle_sym_t*)&ll##DBUSSYM, sSymDBUSDSOHandle, #DBUSSYM); if (rv != APR_SUCCESS) {INFOMSG("Failed to grab symbol: %s", #DBUSSYM); if (REQUIRED) sym_error = true;} else DEBUGMSG("grabbed symbol: %s from %p", #DBUSSYM, (void*)ll##DBUSSYM);}while(0)
+
+        //attempt to load the shared library
+        apr_pool_create(&sSymDBUSDSOMemoryPool, NULL);
+  
+        if ( APR_SUCCESS == (rv = apr_dso_load(&sSymDBUSDSOHandle,
+                                               dbus_dso_name.c_str(),
+                                               sSymDBUSDSOMemoryPool) ))
+        {
+                INFOMSG("Found DSO: %s", dbus_dso_name.c_str());
+
+#include "llappviewerlinux_api_dbus_syms_raw.inc"
+      
+                if ( sSymDBUSDSOHandle )
+                {
+                        sSymDBUSDSOHandleG = sSymDBUSDSOHandle;
+                        sSymDBUSDSOHandle = NULL;
+                }
+      
+                rtn = !sym_error;
+        }
+        else
+        {
+                INFOMSG("Couldn't load DSO: %s", dbus_dso_name.c_str());
+                rtn = false; // failure
+        }
+
+        if (sym_error)
+        {
+                WARNMSG("Failed to find necessary symbols in DBUS-GLIB libraries.");
+        }
+#undef LL_DBUS_SYM
+
+        sSymsGrabbed = rtn;
+        return rtn;
+}
+
+
+void ungrab_dbus_syms()
+{ 
+        // should be safe to call regardless of whether we've
+        // actually grabbed syms.
+
+        if ( sSymDBUSDSOHandleG )
+        {
+                apr_dso_unload(sSymDBUSDSOHandleG);
+                sSymDBUSDSOHandleG = NULL;
+        }
+        
+        if ( sSymDBUSDSOMemoryPool )
+        {
+                apr_pool_destroy(sSymDBUSDSOMemoryPool);
+                sSymDBUSDSOMemoryPool = NULL;
+        }
+        
+        // NULL-out all of the symbols we'd grabbed
+#define LL_DBUS_SYM(REQUIRED, DBUSSYM, RTN, ...) do{ll##DBUSSYM = NULL;}while(0)
+#include "llappviewerlinux_api_dbus_syms_raw.inc"
+#undef LL_DBUS_SYM
+
+        sSymsGrabbed = false;
+}
+
+#endif // LL_DBUS_ENABLED