[Xen-changelog] [xen-unstable] tools: libxl: remove BitField type class from IDL

[Xen patchbot-unstable <patchbot@xxxxxxx>]

# HG changeset patch
# User Ian Campbell <ian.campbell@xxxxxxxxxx>
# Date 1303315987 -3600
# Node ID 81c5e5aa5a10a68d85d82c31315f71165c44807d
# Parent  cf9e32ac2fb6155e023d7e269ad4d788d720832d
tools: libxl: remove BitField type class from IDL

All usages are single bit BitFields, AKA booleans.

In general we prefer to use simple structures (e.g. without packing or
specific layouts) in the libxl API and take care of any require
structure by marshalling within the library instead of expecting users
to do so (e.g. the PCI device BDF is unpacked in the libxl API).

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Acked-by: Ian Jackson <ian.jackson.citrix.com>
Committed-by: Ian Jackson <ian.jackson.citrix.com>
---


diff -r cf9e32ac2fb6 -r 81c5e5aa5a10 tools/libxl/gentypes.py
--- a/tools/libxl/gentypes.py   Wed Apr 20 17:13:07 2011 +0100
+++ b/tools/libxl/gentypes.py   Wed Apr 20 17:13:07 2011 +0100
@@ -22,9 +22,7 @@
     return ty.typename
 
 def libxl_C_instance_of(ty, instancename):
-    if isinstance(ty, libxltypes.BitField):
-        return libxl_C_type_of(ty) + " " + instancename + ":%d" % ty.width
-    elif isinstance(ty, libxltypes.Aggregate) and ty.typename is None:
+    if isinstance(ty, libxltypes.Aggregate) and ty.typename is None:
         if instancename is None:
             return libxl_C_type_define(ty)
         else:
diff -r cf9e32ac2fb6 -r 81c5e5aa5a10 tools/libxl/idl.txt
--- a/tools/libxl/idl.txt       Wed Apr 20 17:13:07 2011 +0100
+++ b/tools/libxl/idl.txt       Wed Apr 20 17:13:07 2011 +0100
@@ -64,14 +64,6 @@
  The <N> for a given instance must be passed to the constructor and is
  then available in UInt.width
 
-libxltype.BitField
-
- Instances of this class represent bitfield type classes.
-
- The base type and desired width for a given instance must be passed
- to the contructor. The base type becomes the type of the instance and
- width is contained in BitField.width
-
 libxltype.Reference
 
  Instances of this type represent a reference to another type
diff -r cf9e32ac2fb6 -r 81c5e5aa5a10 tools/libxl/libxl.idl
--- a/tools/libxl/libxl.idl     Wed Apr 20 17:13:07 2011 +0100
+++ b/tools/libxl/libxl.idl     Wed Apr 20 17:13:07 2011 +0100
@@ -89,11 +89,11 @@
 libxl_dominfo = Struct("dominfo",[
     ("uuid",        libxl_uuid),
     ("domid",       libxl_domid),
-    ("running",     BitField(uint8, 1)),
-    ("blocked",     BitField(uint8, 1)),
-    ("paused",      BitField(uint8, 1)),
-    ("shutdown",    BitField(uint8, 1)),
-    ("dying",       BitField(uint8, 1)),
+    ("running",     bool),
+    ("blocked",     bool),
+    ("paused",      bool),
+    ("shutdown",    bool),
+    ("dying",       bool),
     
     ("shutdown_reason", unsigned, False, 
 """Valid SHUTDOWN_* value from xen/sched.h iff (shutdown||dying).
@@ -326,9 +326,9 @@
 libxl_vcpuinfo = Struct("vcpuinfo", [
     ("vcpuid", uint32,              False, "vcpu's id"),
     ("cpu", uint32,                 False, "current mapping"),
-    ("online", BitField(uint8, 1),  False, "currently online (not 
hotplugged)?"),
-    ("blocked", BitField(uint8, 1), False, "blocked waiting for an event?"),
-    ("running", BitField(uint8, 1), False, "currently scheduled on its CPU?"),
+    ("online", bool,                False, "currently online (not 
hotplugged)?"),
+    ("blocked", bool,               False, "blocked waiting for an event?"),
+    ("running", bool,               False, "currently scheduled on its CPU?"),
     ("vcpu_time", uint64,           False, "total vcpu time ran (ns)"),
     ("cpumap", libxl_cpumap,        False, "current cpu's affinities"),
     ])
diff -r cf9e32ac2fb6 -r 81c5e5aa5a10 tools/libxl/libxltypes.py
--- a/tools/libxl/libxltypes.py Wed Apr 20 17:13:07 2011 +0100
+++ b/tools/libxl/libxltypes.py Wed Apr 20 17:13:07 2011 +0100
@@ -81,14 +81,6 @@
                                                 comment=comment,
                                                 typename=self.rawname))
         
-class BitField(Type):
-    def __init__(self, ty, w, **kwargs):
-        kwargs.setdefault('namespace', None)
-        kwargs.setdefault('destructor_fn', None)
-        Type.__init__(self, ty.typename, **kwargs)
-
-        self.width = w
-
 class Field(object):
     """An element of an Aggregate type"""
     def __init__(self, type, name, **kwargs):
diff -r cf9e32ac2fb6 -r 81c5e5aa5a10 tools/python/genwrap.py
--- a/tools/python/genwrap.py   Wed Apr 20 17:13:07 2011 +0100
+++ b/tools/python/genwrap.py   Wed Apr 20 17:13:07 2011 +0100
@@ -7,7 +7,7 @@
 (TYPE_BOOL, TYPE_INT, TYPE_UINT, TYPE_STRING) = range(4)
 
 def py_type(ty):
-    if ty == libxltypes.bool or isinstance(ty, libxltypes.BitField) and 
ty.width == 1:
+    if ty == libxltypes.bool:
         return TYPE_BOOL
     if isinstance(ty, libxltypes.Enumeration):
         return TYPE_UINT

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