Merge lp:~kyrofa/go-mir/connection into lp:go-mir

[Kyle Fazzari]

Add Go bindings for MirConnection.

Add Go bindings for MirConnection.

[lp:~kyrofa/go-mir/connection]

2. By Kyle Fazzari on 2015-09-17

Add Go bindings for MirConnection.

Signed-off-by: Kyle Fazzari <email address hidden>

3. By Kyle Fazzari on 2015-09-17

Restrict the license header to version 3 of the GPL.

Signed-off-by: Kyle Fazzari <email address hidden>

[dobey (dobey)]

This needs to be LGPLv3, not GPL.

review: Needs Fixing

[lp:~kyrofa/go-mir/connection]

4. By Kyle Fazzari on 2015-09-17

Change license to LGPLv3.

Signed-off-by: Kyle Fazzari <email address hidden>

[dobey (dobey)]

review: Approve

=== added file 'COPYING.LESSER'
--- COPYING.LESSER	1970-01-01 00:00:00 +0000
+++ COPYING.LESSER	2015-09-17 17:46:48 +0000
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
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+other than an Application or a Combined Work as defined below.
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+Application, but excluding the System Libraries of the Combined Work.
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+  You may convey a covered work under sections 3 and 4 of this License
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+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
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=== added directory 'mir'
=== added file 'mir/connection.go'
--- mir/connection.go	1970-01-01 00:00:00 +0000
+++ mir/connection.go	2015-09-17 17:46:48 +0000
@@ -0,0 +1,64 @@
+/* Copyright (C) 2015 Canonical Ltd.
+ *
+ * This file is part of go-mir.
+ *
+ * go-mir is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License version 3, as published by the
+ * Free Software Foundation.
+ *
+ * go-mir is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with go-mir. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package mir
+
+// #cgo pkg-config: mirclient
+// #include <stdlib.h>
+// #include <mir_toolkit/mir_connection.h>
+import "C"
+
+import (
+	"fmt"
+	"unsafe"
+)
+
+// Connection represents a connection to the Mir server.
+type Connection struct {
+	connection *C.MirConnection
+}
+
+// NewConnection request (and waits for) a connection to the Mir server. Note
+// that it's up to the caller to explicitly Release() this connection.
+func NewConnection(serverFilePath string, clientName string) (*Connection, error) {
+	serverFilePathCstring := C.CString(serverFilePath)
+	defer C.free(unsafe.Pointer(serverFilePathCstring))
+
+	clientNameCstring := C.CString(clientName)
+	defer C.free(unsafe.Pointer(clientNameCstring))
+
+	connection := &Connection{}
+	connection.connection = C.mir_connect_sync(serverFilePathCstring,
+		clientNameCstring)
+
+	if connection.connection == nil {
+		return nil, fmt.Errorf("Failed to connect to Mir Trusted Session")
+	}
+
+	return connection, nil
+}
+
+// Release releases the connection to the Mir server.
+func (connection *Connection) Release() {
+	C.mir_connection_release(connection.connection)
+}
+
+// ToMirConnection returns the raw MirConnection (in case other bindings require
+// it).
+func (connection *Connection) ToMirConnection() *C.MirConnection {
+	return connection.connection
+}