def __str__(self):
try:
value = self.value()
tname = self.fundamental_typename()
gvalue_type = gdb.lookup_type("GValue")
if tname is None:
v = "<None>"
elif tname == "GstFraction":
v = "%d/%d" % (value[0], value[1])
elif tname == "GstBitmask":
v = "0x%016x" % long(value)
elif tname == "gboolean":
v = "false" if int(value) == 0 else "true"
elif tname == "GstFlagSet":
v = "%x:%x" % (value[0], value[1])
elif tname == "GstIntRange":
rmin = int(value[0]["v_uint64"]) >> 32
rmax = int(value[0]["v_uint64"]) & 0xffffffff
step = int(value[1]["v_int"])
if step == 1:
v = "[ %d, %d ]" % (rmin, rmax)
else:
v = "[ %d, %d, %d ]" % (rmin * step, rmax * step, step)
elif tname == "GstFractionRange":
v = "[ %s, %s ]" % (GdbGValue(value[0]), GdbGValue(value[1]))
elif tname in ("GstValueList", "GstValueArray"):
if gvalue_type.fields()[1].type == value.type:
gdb_type = gdb.lookup_type("GArray").pointer()
value = value[0]["v_pointer"].cast(gdb_type)
v = "<"
for l in _g_array_iter(value, gvalue_type):
v += " " if v == "<" else ", "
v += str(GdbGValue(l))
v += " >"
elif tname == "GEnum":
v = "%s(%s)" % (g_type_to_name(
g_type_to_typenode(self.val["g_type"])), value["v_int"])
else:
try:
v = value.string()
except RuntimeError:
# it is not a string-like type
if gvalue_type.fields()[1].type == value.type:
# don't print the raw GValue union
v = "<unknown type: %s>" % tname
else:
v = str(value)
except gdb.MemoryError:
v = "<inaccessible memory at 0x%x>" % int(self.val)
return v
def g_inherits_type(val, typename):
if is_gst_type(val, "GstObject"):
gtype = _g_type_from_instance(val)
if gtype is None:
return False
typenode = g_type_to_typenode(gtype)
elif is_gst_type(val, "GstMiniObject"):
mini = val.cast(gdb.lookup_type("GstMiniObject").pointer())
try:
typenode = mini["type"].cast(gdb.lookup_type("TypeNode").pointer())
except gdb.MemoryError:
return False
else:
return False
for i in range(typenode["n_supers"]):
if g_type_to_name(typenode["supers"][i]) == typename:
return True
return False
def _g_value_get_value(val):
typenode = g_type_to_typenode(val["g_type"])
if not typenode:
return None
tname = g_quark_to_string(typenode["qname"])
fname = g_type_to_name(typenode["supers"][int(typenode["n_supers"])])
if fname in ("gchar", "guchar", "gboolean", "gint", "guint", "glong",
"gulong", "gint64", "guint64", "gfloat", "gdouble",
"gpointer", "GFlags"):
try:
t = gdb.lookup_type(tname).pointer()
except RuntimeError:
t = gdb.lookup_type(fname).pointer()
elif fname == "gchararray":
t = gdb.lookup_type("char").pointer().pointer()
elif fname == "GstBitmask":
t = gdb.lookup_type("guint64").pointer()
elif fname == "GstFlagSet":
t = gdb.lookup_type("guint").pointer().pointer()
return val["data"].cast(t)
elif fname == "GstFraction":
t = gdb.lookup_type("gint").pointer().pointer()
return val["data"].cast(t)
elif fname == "GstFractionRange":
t = gdb.lookup_type("GValue").pointer().pointer()
elif fname == "GstValueList":
t = gdb.lookup_type("GArray").pointer().pointer()
elif fname in ("GBoxed", "GObject"):
try:
t = gdb.lookup_type(tname).pointer().pointer()
except RuntimeError:
t = gdb.lookup_type(tname).pointer().pointer()
else:
return val["data"]
return val["data"].cast(t).dereference()
def fundamental_typename(self):
typenode = g_type_to_typenode(self.val["g_type"])
if not typenode:
return None
return g_type_to_name(typenode["supers"][int(typenode["n_supers"])])
