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authorMarek Gradzki <mgradzki@cisco.com>2017-05-12 18:24:34 +0200
committerDamjan Marion <dmarion.lists@gmail.com>2017-05-15 17:27:01 +0000
commited76d5f2e383834d8c6aae8ab3b89cf7d2479d0c (patch)
tree52c89a33fbedcf44d5b7ddf2356a678c588efe0c /src/vpp-api/java/jvpp/gen/jvppgen
parent0194f1aeefaf9917e0303ca36969a22f320d4444 (diff)
jvpp: fix memory allocation for variable lenght messages (VPP-841)
Change-Id: I9a46125e3cf9815c08cf8cca17713ec6e9121eae Signed-off-by: Marek Gradzki <mgradzki@cisco.com> (cherry picked from commit 307cfd8eb14ff7df04316ffa56f2c2481d650d7e)
Diffstat (limited to 'src/vpp-api/java/jvpp/gen/jvppgen')
-rw-r--r--src/vpp-api/java/jvpp/gen/jvppgen/jni_gen.py22
-rw-r--r--src/vpp-api/java/jvpp/gen/jvppgen/jvpp_c_gen.py23
-rw-r--r--src/vpp-api/java/jvpp/gen/jvppgen/types_gen.py12
3 files changed, 40 insertions, 17 deletions
diff --git a/src/vpp-api/java/jvpp/gen/jvppgen/jni_gen.py b/src/vpp-api/java/jvpp/gen/jvppgen/jni_gen.py
index 328cc8d35d2..cb0d66e85cc 100644
--- a/src/vpp-api/java/jvpp/gen/jvppgen/jni_gen.py
+++ b/src/vpp-api/java/jvpp/gen/jvppgen/jni_gen.py
@@ -248,16 +248,13 @@ struct_setter_templates = {'u8': u8_struct_setter_template,
}
-def jni_request_binding_for_type(field_type, c_name, field_reference_name, field_name, field_length,
- is_variable_len_array, object_name="request"):
+def jni_request_identifiers_for_type(field_type, field_reference_name, field_name, object_name="request"):
"""
- Generates jni code that initializes C structure that corresponds to a field of java object
+ Generates jni code that defines C variable corresponding to field of java object
(dto or custom type). To be used in request message handlers.
:param field_type: type of the field to be initialized (as defined in vpe.api)
- :param c_name: name of the message struct member to be initialized
:param field_reference_name: name of the field reference in generated code
:param field_name: name of the field (camelcase)
- :param field_length: integer or name of variable that stores field length
:param object_name: name of the object to be initialized
"""
# field identifiers
@@ -266,7 +263,7 @@ def jni_request_binding_for_type(field_type, c_name, field_reference_name, field
jni_getter = util.jni_field_accessors[field_type]
# field identifier
- msg_initialization = request_field_identifier_template.substitute(
+ return request_field_identifier_template.substitute(
jni_type=jni_type,
field_reference_name=field_reference_name,
field_name=field_name,
@@ -274,6 +271,17 @@ def jni_request_binding_for_type(field_type, c_name, field_reference_name, field
jni_getter=jni_getter,
object_name=object_name)
+
+def jni_request_binding_for_type(field_type, c_name, field_reference_name, field_length, is_variable_len_array):
+ """
+ Generates jni code that initializes C structure that corresponds to a field of java object
+ (dto or custom type). To be used in request message handlers.
+ :param field_type: type of the field to be initialized (as defined in vpe.api)
+ :param c_name: name of the message struct member to be initialized
+ :param field_reference_name: name of the field reference in generated code
+ :param field_length: integer or name of variable that stores field length
+ """
+
# field setter
field_length_check = ""
@@ -287,7 +295,7 @@ def jni_request_binding_for_type(field_type, c_name, field_reference_name, field
struct_setter_template = struct_setter_templates[field_type]
- msg_initialization += struct_setter_template.substitute(
+ msg_initialization = struct_setter_template.substitute(
c_name=c_name,
field_reference_name=field_reference_name,
field_length_check=field_length_check)
diff --git a/src/vpp-api/java/jvpp/gen/jvppgen/jvpp_c_gen.py b/src/vpp-api/java/jvpp/gen/jvppgen/jvpp_c_gen.py
index 5b0fbc95035..1425cdb7a8f 100644
--- a/src/vpp-api/java/jvpp/gen/jvppgen/jvpp_c_gen.py
+++ b/src/vpp-api/java/jvpp/gen/jvppgen/jvpp_c_gen.py
@@ -113,6 +113,7 @@ request_field_identifier_template = Template("""
${jni_type} ${field_reference_name} = (*env)->Get${jni_getter}(env, ${object_name}, ${field_reference_name}FieldId);
""")
+jni_msg_size_template = Template(""" + ${array_length}*sizeof(${element_type})""")
jni_impl_template = Template("""
/**
@@ -127,9 +128,11 @@ JNIEXPORT jint JNICALL Java_io_fd_vpp_jvpp_${plugin_name}_JVpp${java_plugin_name
u32 my_context_id = vppjni_get_context_id (&jvpp_main);
$request_class
+ $jni_identifiers
+
// create message:
- mp = vl_msg_api_alloc(sizeof(*mp));
- memset (mp, 0, sizeof (*mp));
+ mp = vl_msg_api_alloc(${msg_size});
+ memset (mp, 0, ${msg_size});
mp->_vl_msg_id = ntohs (get_message_id(env, "${c_name}_${crc}"));
mp->client_index = plugin_main->my_client_index;
mp->context = clib_host_to_net_u32 (my_context_id);
@@ -155,8 +158,10 @@ def generate_jni_impl(func_list, plugin_name, inputfile):
arguments = ''
request_class = ''
+ jni_identifiers = ''
msg_initialization = ''
f_name_uppercase = f_name.upper()
+ msg_size = 'sizeof(*mp)'
if f['args']:
arguments = ', jobject request'
@@ -166,13 +171,19 @@ def generate_jni_impl(func_list, plugin_name, inputfile):
java_name_upper=camel_case_function_name_upper,
plugin_name=plugin_name)
- for t in zip(f['types'], f['args'], f['lengths']):
+ for t in zip(f['types'], f['args'], f['lengths'], f['arg_types']):
field_name = util.underscore_to_camelcase(t[1])
+ is_variable_len_array = t[2][1]
+ if is_variable_len_array:
+ msg_size += jni_msg_size_template.substitute(array_length=util.underscore_to_camelcase(t[2][0]),
+ element_type=t[3])
+ jni_identifiers += jni_gen.jni_request_identifiers_for_type(field_type=t[0],
+ field_reference_name=field_name,
+ field_name=field_name)
msg_initialization += jni_gen.jni_request_binding_for_type(field_type=t[0], c_name=t[1],
field_reference_name=field_name,
- field_name=field_name,
field_length=t[2][0],
- is_variable_len_array=t[2][1])
+ is_variable_len_array=is_variable_len_array)
jni_impl.append(jni_impl_template.substitute(
inputfile=inputfile,
@@ -185,6 +196,8 @@ def generate_jni_impl(func_list, plugin_name, inputfile):
plugin_name=plugin_name,
java_plugin_name=plugin_name.title(),
request_class=request_class,
+ jni_identifiers=jni_identifiers,
+ msg_size=msg_size,
msg_initialization=msg_initialization,
args=arguments))
diff --git a/src/vpp-api/java/jvpp/gen/jvppgen/types_gen.py b/src/vpp-api/java/jvpp/gen/jvppgen/types_gen.py
index 7a5eec377fa..93883ba1a3b 100644
--- a/src/vpp-api/java/jvpp/gen/jvppgen/types_gen.py
+++ b/src/vpp-api/java/jvpp/gen/jvppgen/types_gen.py
@@ -108,12 +108,14 @@ def generate_struct_initialization(type_def, c_name_prefix, object_name, indent)
for t in zip(type_def['types'], type_def['args'], type_def['lengths']):
field_reference_name = "${c_name}" + util.underscore_to_camelcase_upper(t[1])
field_name = util.underscore_to_camelcase(t[1])
+ struct_initialization += jni_gen.jni_request_identifiers_for_type(field_type=t[0],
+ field_reference_name=field_reference_name,
+ field_name=field_name,
+ object_name=object_name)
struct_initialization += jni_gen.jni_request_binding_for_type(field_type=t[0], c_name=c_name_prefix + t[1],
- field_reference_name=field_reference_name,
- field_name=field_name,
- field_length=t[2][0],
- is_variable_len_array=t[2][1],
- object_name=object_name)
+ field_reference_name=field_reference_name,
+ field_length=t[2][0],
+ is_variable_len_array=t[2][1])
return indent + struct_initialization.replace('\n', '\n' + indent)