dgd kfun extension mapping

random_map.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>
#include <curl/curl.h>
#include <json-c/json.h>
#include "lpc_ext.h"

static void random_map(LPC_frame f, int nargs, LPC_value retval)
{
	LPC_dataspace data;
	LPC_mapping mapping;
	LPC_value mapping_key, mapping_value;
	LPC_string key_str, val_str;
	char key[100];
	char val[5];

	data = lpc_frame_dataspace(f);
	mapping_key = lpc_value_temp(data);
	mapping_value = lpc_value_temp(data);

	sprintf(key, "key_%d", 1);
	sprintf(val, "val_%d", rand());

	key_str = lpc_string_new(data, key, strlen(key));
	val_str = lpc_string_new(data, val, strlen(val));
	lpc_string_putval(mapping_key, key_str);
	lpc_string_putval(mapping_value, val_str);
	mapping = lpc_mapping_new(data);
	lpc_mapping_assign(data, mapping, mapping_key, mapping_value);
	lpc_mapping_putval(retval, mapping);
    /* expected, ([ "key_1":"val_1234" ]) */
    /* actual,   ([ "val_730934857":"val_730934857" ]) */
}

static char random_map_proto[] =
    { LPC_TYPE_ARRAY_OF(LPC_TYPE_MAPPING), LPC_TYPE_STRING, 0 };

static LPC_ext_kfun kf[1] = {
	"random_map",
	random_map_proto,
	&random_map
};

int lpc_ext_init(int major, int minor, char *config)
{
	time_t t;
	srand((unsigned)time(&t));
	lpc_ext_kfun(kf, 1);
	return 1;
}