diff options
Diffstat (limited to 'src/vpp/api/json_format.h')
| -rw-r--r-- | src/vpp/api/json_format.h | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/src/vpp/api/json_format.h b/src/vpp/api/json_format.h new file mode 100644 index 00000000..154fb3df --- /dev/null +++ b/src/vpp/api/json_format.h @@ -0,0 +1,254 @@ +/* + *------------------------------------------------------------------ + * json_format.h + * + * Copyright (c) 2015 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + *------------------------------------------------------------------ + */ + +#ifndef __JSON_FORMAT_H__ +#define __JSON_FORMAT_H__ + +#include <vppinfra/clib.h> +#include <vppinfra/format.h> +#include <netinet/ip.h> + +/* JSON value type */ +typedef enum +{ + VAT_JSON_NONE, + VAT_JSON_OBJECT, + VAT_JSON_ARRAY, + VAT_JSON_STRING, + VAT_JSON_REAL, + VAT_JSON_UINT, + VAT_JSON_INT, + VAT_JSON_IPV4, + VAT_JSON_IPV6, + VAT_JSON_MAX +} vat_json_val_type_t; + +typedef struct vat_json_node_s vat_json_node_t; +typedef struct vat_json_pair_s vat_json_pair_t; + +/* JSON object structure */ +struct vat_json_node_s +{ + vat_json_val_type_t type; + union + { + vat_json_pair_t *pairs; + vat_json_node_t *array; + u8 *string; + struct in_addr ip4; + struct in6_addr ip6; + u64 uint; + i64 sint; + f64 real; + }; +}; + +struct vat_json_pair_s +{ + const char *name; + vat_json_node_t value; +}; + +void vat_json_print (FILE * ofp, vat_json_node_t * node); +void vat_json_free (vat_json_node_t * node); + +static_always_inline void +vat_json_init_object (vat_json_node_t * json) +{ + json->type = VAT_JSON_OBJECT; + json->pairs = NULL; +} + +static_always_inline void +vat_json_init_array (vat_json_node_t * json) +{ + json->type = VAT_JSON_ARRAY; + json->array = NULL; +} + +static_always_inline void +vat_json_set_string (vat_json_node_t * json, u8 * str) +{ + json->type = VAT_JSON_STRING; + json->string = str; +} + +static_always_inline void +vat_json_set_string_copy (vat_json_node_t * json, const u8 * str) +{ + u8 *ns = NULL; + vec_validate (ns, strlen ((const char *) str)); + strcpy ((char *) ns, (const char *) str); + vec_add1 (ns, '\0'); + vat_json_set_string (json, ns); +} + +static_always_inline void +vat_json_set_int (vat_json_node_t * json, i64 num) +{ + json->type = VAT_JSON_INT; + json->sint = num; +} + +static_always_inline void +vat_json_set_uint (vat_json_node_t * json, u64 num) +{ + json->type = VAT_JSON_UINT; + json->uint = num; +} + +static_always_inline void +vat_json_set_real (vat_json_node_t * json, f64 real) +{ + json->type = VAT_JSON_REAL; + json->real = real; +} + +static_always_inline void +vat_json_set_ip4 (vat_json_node_t * json, struct in_addr ip4) +{ + json->type = VAT_JSON_IPV4; + json->ip4 = ip4; +} + +static_always_inline void +vat_json_set_ip6 (vat_json_node_t * json, struct in6_addr ip6) +{ + json->type = VAT_JSON_IPV6; + json->ip6 = ip6; +} + +static_always_inline vat_json_node_t * +vat_json_object_add (vat_json_node_t * json, const char *name) +{ + ASSERT (VAT_JSON_OBJECT == json->type); + uword pos = vec_len (json->pairs); + vec_validate (json->pairs, pos); + json->pairs[pos].name = name; + return &json->pairs[pos].value; +} + +static_always_inline vat_json_node_t * +vat_json_array_add (vat_json_node_t * json) +{ + ASSERT (VAT_JSON_ARRAY == json->type); + uword pos = vec_len (json->array); + vec_validate (json->array, pos); + return &json->array[pos]; +} + +static_always_inline vat_json_node_t * +vat_json_object_add_list (vat_json_node_t * json, const char *name) +{ + vat_json_node_t *array_node = vat_json_object_add (json, name); + vat_json_init_array (array_node); + return array_node; +} + +static_always_inline void +vat_json_object_add_string_copy (vat_json_node_t * json, + const char *name, u8 * str) +{ + vat_json_set_string_copy (vat_json_object_add (json, name), str); +} + +static_always_inline void +vat_json_object_add_uint (vat_json_node_t * json, + const char *name, u64 number) +{ + vat_json_set_uint (vat_json_object_add (json, name), number); +} + +static_always_inline void +vat_json_object_add_int (vat_json_node_t * json, const char *name, i64 number) +{ + vat_json_set_int (vat_json_object_add (json, name), number); +} + +static_always_inline void +vat_json_object_add_real (vat_json_node_t * json, const char *name, f64 real) +{ + vat_json_set_real (vat_json_object_add (json, name), real); +} + +static_always_inline void +vat_json_object_add_ip4 (vat_json_node_t * json, + const char *name, struct in_addr ip4) +{ + vat_json_set_ip4 (vat_json_object_add (json, name), ip4); +} + +static_always_inline void +vat_json_object_add_ip6 (vat_json_node_t * json, + const char *name, struct in6_addr ip6) +{ + vat_json_set_ip6 (vat_json_object_add (json, name), ip6); +} + +static_always_inline void +vat_json_array_add_int (vat_json_node_t * json, i64 number) +{ + vat_json_set_int (vat_json_array_add (json), number); +} + +static_always_inline void +vat_json_array_add_uint (vat_json_node_t * json, u64 number) +{ + vat_json_set_uint (vat_json_array_add (json), number); +} + +static_always_inline void +vat_json_object_add_bytes (vat_json_node_t * json, + const char *name, u8 * array, uword size) +{ + ASSERT (VAT_JSON_OBJECT == json->type); + vat_json_node_t *json_array = vat_json_object_add (json, name); + vat_json_init_array (json_array); + int i; + for (i = 0; i < size; i++) + { + vat_json_array_add_uint (json_array, array[i]); + } +} + +static_always_inline vat_json_node_t * +vat_json_object_get_element (vat_json_node_t * json, const char *name) +{ + int i = 0; + + ASSERT (VAT_JSON_OBJECT == json->type); + for (i = 0; i < vec_len (json->pairs); i++) + { + if (0 == strcmp (json->pairs[i].name, name)) + { + return &json->pairs[i].value; + } + } + return NULL; +} + +#endif /* __JSON_FORMAT_H__ */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |