mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-16 00:00:02 +01:00
66 lines
1.5 KiB
C++
66 lines
1.5 KiB
C++
/** Compatability for different library versions.
|
|
*
|
|
* @author Steffen Vogel <post@steffenvogel.de>
|
|
* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
|
|
* @license Apache License 2.0
|
|
*********************************************************************************/
|
|
|
|
#include <cstring>
|
|
#include <jansson.h>
|
|
#include <unistd.h>
|
|
|
|
#include <villas/compat.hpp>
|
|
|
|
#if JANSSON_VERSION_HEX < 0x020A00
|
|
size_t json_dumpb(const json_t *json, char *buffer, size_t size, size_t flags)
|
|
{
|
|
char *str;
|
|
size_t len;
|
|
|
|
str = json_dumps(json, flags);
|
|
if (!str)
|
|
return 0;
|
|
|
|
len = strlen(str); // Not \0 terminated
|
|
if (buffer && len <= size)
|
|
memcpy(buffer, str, len);
|
|
|
|
free(str);
|
|
|
|
return len;
|
|
}
|
|
|
|
static size_t json_loadfd_callback(void *buffer, size_t buflen, void *data)
|
|
{
|
|
int *fd = (int *) data;
|
|
|
|
return (size_t) read(*fd, buffer, buflen);
|
|
}
|
|
|
|
json_t *json_loadfd(int input, size_t flags, json_error_t *error)
|
|
{
|
|
return json_load_callback(json_loadfd_callback, (void *) &input, flags, error);
|
|
}
|
|
|
|
|
|
static int json_dumpfd_callback(const char *buffer, size_t size, void *data)
|
|
{
|
|
#ifdef HAVE_UNISTD_H
|
|
int *dest = (int *)data;
|
|
|
|
if (write(*dest, buffer, size) == (ssize_t)size)
|
|
return 0;
|
|
#else
|
|
(void)buffer;
|
|
(void)size;
|
|
(void)data;
|
|
#endif // HAVE_UNISTD_H
|
|
|
|
return -1;
|
|
}
|
|
|
|
int json_dumpfd(const json_t *json, int output, size_t flags)
|
|
{
|
|
return json_dump_callback(json, json_dumpfd_callback, (void *) &output, flags);
|
|
}
|
|
#endif // JANSSON_VERSION_HEX < 0x020A00
|