gp_json_writer.h

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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
 * Copyright (C) 2021-2022 Cyril Hrubis <metan@ucw.cz>
 */
 
#ifndef GP_JSON_WRITER_H
#define GP_JSON_WRITER_H
 
#include <utils/gp_json_common.h>
 
struct gp_json_writer {
        unsigned int depth;
        char depth_type[GP_JSON_RECURSION_MAX/8];
        char depth_first[GP_JSON_RECURSION_MAX/8];
 
        void (*err_print)(void *err_print_priv, const char *line);
        void *err_print_priv;
        char err[GP_JSON_ERR_MAX];
 
        int (*out)(struct gp_json_writer *self, const char *buf, size_t buf_size);
        void *out_priv;
};
 
#define GP_JSON_WRITER_INIT(out_, out_priv_) { \
        .err_print = GP_JSON_ERR_PRINT, \
        .err_print_priv = GP_JSON_ERR_PRINT_PRIV, \
        .out = out_, \
        .out_priv = out_priv_ \
}
 
gp_json_writer *gp_json_writer_vec_new(void);
 
void gp_json_writer_vec_free(gp_json_writer *self);
 
static inline char *gp_json_writer_vec(gp_json_writer *self)
{
        return self->out_priv;
}
 
static inline int gp_json_writer_err(gp_json_writer *self)
{
        return !!self->err[0];
}
 
int gp_json_obj_start(gp_json_writer *self, const char *id);
 
int gp_json_obj_finish(gp_json_writer *self);
 
int gp_json_arr_start(gp_json_writer *self, const char *id);
 
int gp_json_arr_finish(gp_json_writer *self);
 
int gp_json_null_add(gp_json_writer *self, const char *id);
 
int gp_json_int_add(gp_json_writer *self, const char *id, long val);
 
int gp_json_bool_add(gp_json_writer *self, const char *id, int val);
 
int gp_json_float_add(gp_json_writer *self, const char *id, double val);
 
int gp_json_str_add(gp_json_writer *self, const char *id, const char *str);
 
int gp_json_finish(gp_json_writer *self);
 
#endif /* GP_JSON_WRITER_H */