diff options
author | 2016-06-15 16:38:33 +0200 | |
---|---|---|
committer | 2016-06-24 13:23:16 +0000 | |
commit | fa42e25c4e498c57e15ebb0ded56502a61b7dc08 (patch) | |
tree | a6a79850ddab1e962c9f639050a09925fe57c9f0 | |
parent | 80ee21386cea217d0e9292d2a8b15ea88bf99d30 (diff) |
VPP-118: add support for variable length arrays to jvpp
* extends VPP's message definition language with the following syntax:
u32 count:
u8 array[count];
which is traslated to:
u32 count;
u8 array[0];
but now, python API representation generated by vppapigen
contains information about where the array length is stored.
* modifies existing response messages to use the new syntax
Change-Id: I68210bc7a3a755d03d067e9b79a567f40e2d31f3
Signed-off-by: Marek Gradzki <mgradzki@cisco.com>
-rw-r--r-- | vpp-api/java/jvpp/gen/jvpp_c_gen.py | 23 | ||||
-rwxr-xr-x | vpp-api/java/jvpp/gen/jvpp_gen.py | 8 | ||||
-rwxr-xr-x | vpp-api/python/pneum/api-gen.py | 2 | ||||
-rw-r--r-- | vpp/api/vpe.api | 4 | ||||
-rw-r--r-- | vppapigen/gram.y | 2 | ||||
-rw-r--r-- | vppapigen/node.c | 21 | ||||
-rw-r--r-- | vppapigen/node.h | 3 |
7 files changed, 54 insertions, 9 deletions
diff --git a/vpp-api/java/jvpp/gen/jvpp_c_gen.py b/vpp-api/java/jvpp/gen/jvpp_c_gen.py index c006c341..0b7fc67d 100644 --- a/vpp-api/java/jvpp/gen/jvpp_c_gen.py +++ b/vpp-api/java/jvpp/gen/jvpp_c_gen.py @@ -210,7 +210,10 @@ def generate_jni_impl(func_list, inputfile): for t in zip(f['c_types'], f['args'], f['lengths']): c_type = t[0] c_name = t[1] - field_length = t[2] + # variable length arrays do not need special handling in requests, + # because the length of Java array is known: + field_length = t[2][0] + java_field_name = util.underscore_to_camelcase(c_name) struct_setter_template = struct_setter_templates[c_type] @@ -241,6 +244,9 @@ default_dto_field_setter_template = Template(""" (*env)->Set${jni_setter}(env, dto, ${java_name}FieldId, mp->${c_name}); """) +variable_length_array_value_template = Template("""mp->${length_var_name}""") +variable_length_array_template = Template("""clib_net_to_host_${length_field_type}(${value})""") + u16_dto_field_setter_template = Template(""" (*env)->Set${jni_setter}(env, dto, ${java_name}FieldId, clib_net_to_host_u16(mp->${c_name})); """) @@ -267,6 +273,8 @@ u32_array_dto_field_setter_template = Template(""" for (_i = 0; _i < ${field_length}; _i++) { ${java_name}ArrayElements[_i] = clib_net_to_host_u32(mp->${c_name}[_i]); } + + (*env)->ReleaseIntArrayElements(env, ${java_name}, ${java_name}ArrayElements, 0); (*env)->SetObjectField(env, dto, ${java_name}FieldId, ${java_name}); } """) @@ -281,6 +289,8 @@ u64_array_dto_field_setter_template = Template(""" for (_i = 0; _i < ${field_length}; _i++) { ${java_name}ArrayElements[_i] = clib_net_to_host_u64(mp->${c_name}[_i]); } + + (*env)->ReleaseLongArrayElements(env, ${java_name}, ${java_name}ArrayElements, 0); (*env)->SetObjectField(env, dto, ${java_name}FieldId, ${java_name}); } """) @@ -353,7 +363,16 @@ def generate_msg_handlers(func_list, inputfile): c_type = t[0] jni_type = t[1] c_name = t[2] - field_length = t[3] + field_length = t[3][0] + + # check if we are processing variable length array + if t[3][1]: + length_var_name = t[3][0] + length_field_type = f['c_types'][f['args'].index(length_var_name)] + field_length = variable_length_array_value_template.substitute(length_var_name=length_var_name) + if length_field_type != 'u8': # we need net to host conversion: + field_length = variable_length_array_template.substitute( + length_field_type=length_field_type, value=field_length) # for retval don't generate setters and generate retval check if util.is_retval_field(c_name): diff --git a/vpp-api/java/jvpp/gen/jvpp_gen.py b/vpp-api/java/jvpp/gen/jvpp_gen.py index c08593e1..26bcea15 100755 --- a/vpp-api/java/jvpp/gen/jvpp_gen.py +++ b/vpp-api/java/jvpp/gen/jvpp_gen.py @@ -80,11 +80,15 @@ def get_types(t, filter): if len(i) is 3: # array type types_list.append(vpp_2_jni_type_mapping[i[0]] + 'Array') c_types_list.append(i[0] + '[]') - lengths_list.append(i[2]) + lengths_list.append((i[2], False)) + elif len(i) is 4: # variable length array type + types_list.append(vpp_2_jni_type_mapping[i[0]] + 'Array') + c_types_list.append(i[0] + '[]') + lengths_list.append((i[3], True)) else: # primitive type types_list.append(vpp_2_jni_type_mapping[i[0]]) c_types_list.append(i[0]) - lengths_list.append(0) + lengths_list.append((0, False)) return types_list, c_types_list, lengths_list diff --git a/vpp-api/python/pneum/api-gen.py b/vpp-api/python/pneum/api-gen.py index df92c196..081fb983 100755 --- a/vpp-api/python/pneum/api-gen.py +++ b/vpp-api/python/pneum/api-gen.py @@ -67,7 +67,7 @@ def get_pack(t): j = -1 for i in t: j += 1 - if len(i) is 3: + if len(i) is 3 or len(i) is 4: # TODO: add support for variable length arrays (VPP-162) size = type_size[i[0]] bytecount += size * int(i[2]) # Check if we have a zero length array diff --git a/vpp/api/vpe.api b/vpp/api/vpe.api index 24bd0ae6..f91dd871 100644 --- a/vpp/api/vpe.api +++ b/vpp/api/vpe.api @@ -643,7 +643,7 @@ typeonly manual_print manual_endian define ip4_fib_counter { manual_java manual_print manual_endian define vnet_ip4_fib_counters { u32 vrf_id; u32 count; - vl_api_ip4_fib_counter_t c[0]; + vl_api_ip4_fib_counter_t c[count]; }; typeonly manual_print manual_endian define ip6_fib_counter { @@ -656,7 +656,7 @@ typeonly manual_print manual_endian define ip6_fib_counter { manual_java manual_print manual_endian define vnet_ip6_fib_counters { u32 vrf_id; u32 count; - vl_api_ip6_fib_counter_t c[0]; + vl_api_ip6_fib_counter_t c[count]; }; /** \brief Request for a single block of summary stats diff --git a/vppapigen/gram.y b/vppapigen/gram.y index 09e20067..ccdcc8f2 100644 --- a/vppapigen/gram.y +++ b/vppapigen/gram.y @@ -31,6 +31,7 @@ void generate (YYSTYPE); YYSTYPE add_union(YYSTYPE, YYSTYPE); YYSTYPE add_scalar_vbl(YYSTYPE); YYSTYPE add_vector_vbl(YYSTYPE, YYSTYPE); + YYSTYPE add_variable_length_vector_vbl(YYSTYPE, YYSTYPE); YYSTYPE set_flags(YYSTYPE, YYSTYPE); %} @@ -86,4 +87,5 @@ onedef: PRIMTYPE vbl SEMI {$$ = add_primtype($1, $2, 0);} vbl: NAME {$$ = add_scalar_vbl($1);} | NAME LBRACK NUMBER RBRACK {$$ = add_vector_vbl($1, $3);} + | NAME LBRACK NAME RBRACK {$$ = add_variable_length_vector_vbl($1, $3);} ; diff --git a/vppapigen/node.c b/vppapigen/node.c index 2fb65c2d..30a3b017 100644 --- a/vppapigen/node.c +++ b/vppapigen/node.c @@ -1161,7 +1161,11 @@ void node_vector_generate (node_t *this, enum passid which, FILE *fp) fprintf(fp, "}\n"); break; case PYTHON_PASS: - fprintf(fp, "'%s', '%d'),\n", CDATA0, IDATA1); + if (CDATA2 != 0) { // variable length vector + fprintf(fp, "'%s', '%d', '%s'),\n", CDATA0, IDATA1, CDATA2); + } else { + fprintf(fp, "'%s', '%d'),\n", CDATA0, IDATA1); + } break; default: @@ -1461,6 +1465,21 @@ YYSTYPE add_vector_vbl (YYSTYPE a1, YYSTYPE a2) } /* + * add_vector_vbl (char *vector_name, char *vector_length_var) + */ + +YYSTYPE add_variable_length_vector_vbl (YYSTYPE vector_name, YYSTYPE vector_length_var) +{ + node_t *np; + + np = make_node(NODE_VECTOR); + np->data[0] = (void *) vector_name; + np->data[1] = (void *) 0; // vector size used for vpe.api.h generation (array of length zero) + np->data[2] = (void *) vector_length_var; // name of the variable that stores vector length + return ((YYSTYPE) np); +} + +/* * add_scalar_vbl (char *name) */ YYSTYPE add_scalar_vbl (YYSTYPE a1) diff --git a/vppapigen/node.h b/vppapigen/node.h index 1f5a153c..fc331507 100644 --- a/vppapigen/node.h +++ b/vppapigen/node.h @@ -73,12 +73,13 @@ typedef struct node_ { struct node_ *peer; struct node_ *deeper; int flags; - void *data[2]; + void *data[3]; } node_t; /* To shut up gcc-4.2.x warnings */ #define CDATA0 ((char *)(this->data[0])) #define IDATA1 ((int)(uword)(this->data[1])) +#define CDATA2 ((char *)(this->data[2])) #define NODE_FLAG_MANUAL_PRINT (1<<0) #define NODE_FLAG_MANUAL_ENDIAN (1<<1) |