/*** This file is part of PulseAudio. Copyright 2016 Arun Raghavan PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, see . ***/ #pragma once #include #include #include #define PA_DOUBLE_IS_EQUAL(x, y) (((x) - (y)) < 0.000001 && ((x) - (y)) > -0.000001) typedef enum { PA_JSON_TYPE_INIT = 0, PA_JSON_TYPE_NULL, PA_JSON_TYPE_INT, PA_JSON_TYPE_DOUBLE, PA_JSON_TYPE_BOOL, PA_JSON_TYPE_STRING, PA_JSON_TYPE_ARRAY, PA_JSON_TYPE_OBJECT, } pa_json_type; typedef struct pa_json_object pa_json_object; pa_json_object* pa_json_parse(const char *str); pa_json_type pa_json_object_get_type(const pa_json_object *obj); void pa_json_object_free(pa_json_object *obj); /* All pointer members that are returned are valid while the corresponding object is valid */ int64_t pa_json_object_get_int(const pa_json_object *o); double pa_json_object_get_double(const pa_json_object *o); bool pa_json_object_get_bool(const pa_json_object *o); const char* pa_json_object_get_string(const pa_json_object *o); const pa_json_object* pa_json_object_get_object_member(const pa_json_object *o, const char *name); /** Returns pa_hashmap (char* -> const pa_json_object*) to iterate over object members. \since 15.0 */ const pa_hashmap *pa_json_object_get_object_member_hashmap(const pa_json_object *o); int pa_json_object_get_array_length(const pa_json_object *o); const pa_json_object* pa_json_object_get_array_member(const pa_json_object *o, int index); bool pa_json_object_equal(const pa_json_object *o1, const pa_json_object *o2); /** @{ \name Write functions */ /** Structure which holds a JSON encoder. Wrapper for pa_strbuf and encoder context. \since 15.0 */ typedef struct pa_json_encoder pa_json_encoder; /** Create a new pa_json_encoder structure. \since 15.0 */ pa_json_encoder *pa_json_encoder_new(void); /** Free a pa_json_encoder structure. \since 15.0 */ void pa_json_encoder_free(pa_json_encoder *encoder); /** Convert pa_json_encoder to string, free pa_json_encoder structure. * The returned string needs to be freed with pa_xree(). \since 15.0 */ char *pa_json_encoder_to_string_free(pa_json_encoder *encoder); /** Check if a pa_json_encoder is empty (nothing has been added). \since 16.0 */ bool pa_json_encoder_is_empty(pa_json_encoder *encoder); /** Start appending JSON object element by writing an opening brace. \since 15.0 */ void pa_json_encoder_begin_element_object(pa_json_encoder *encoder); /** Start appending JSON object member to JSON object. \since 15.0 */ void pa_json_encoder_begin_member_object(pa_json_encoder *encoder, const char *name); /** End appending JSON object element or member to JSON object. \since 15.0 */ void pa_json_encoder_end_object(pa_json_encoder *encoder); /** Start appending JSON array element by writing an opening bracket. \since 15.0 */ void pa_json_encoder_begin_element_array(pa_json_encoder *encoder); /** Start appending JSON array member to JSON object. \since 15.0 */ void pa_json_encoder_begin_member_array(pa_json_encoder *encoder, const char *name); /** End appending JSON array element or member to JSON object. \since 15.0 */ void pa_json_encoder_end_array(pa_json_encoder *encoder); /** Append null element to JSON. \since 15.0 */ void pa_json_encoder_add_element_null(pa_json_encoder *encoder); /** Append null member to JSON object. \since 15.0 */ void pa_json_encoder_add_member_null(pa_json_encoder *encoder, const char *name); /** Append boolean element to JSON. \since 15.0 */ void pa_json_encoder_add_element_bool(pa_json_encoder *encoder, bool value); /** Append boolean member to JSON object. \since 15.0 */ void pa_json_encoder_add_member_bool(pa_json_encoder *encoder, const char *name, bool value); /** Append string element to JSON. Value will be escaped. \since 15.0 */ void pa_json_encoder_add_element_string(pa_json_encoder *encoder, const char *value); /** Append string member to JSON object. Value will be escaped. \since 15.0 */ void pa_json_encoder_add_member_string(pa_json_encoder *encoder, const char *name, const char *value); /** Append integer element to JSON. \since 15.0 */ void pa_json_encoder_add_element_int(pa_json_encoder *encoder, int64_t value); /** Append integer member to JSON object. \since 15.0 */ void pa_json_encoder_add_member_int(pa_json_encoder *encoder, const char *name, int64_t value); /** Append double element to JSON. \since 15.0 */ void pa_json_encoder_add_element_double(pa_json_encoder *encoder, double value, int precision); /** Append double member to JSON object. \since 15.0 */ void pa_json_encoder_add_member_double(pa_json_encoder *encoder, const char *name, double value, int precision); /** Append raw json string element to JSON. String will be written as is. \since 15.0 */ void pa_json_encoder_add_element_raw_json(pa_json_encoder *encoder, const char *raw_json_string); /** Append raw json string member to JSON object. String will be written as is. \since 15.0 */ void pa_json_encoder_add_member_raw_json(pa_json_encoder *encoder, const char *name, const char *raw_json_string);