int intfstream_close(intfstream_internal_t *intf)
{
if (!intf)
return -1;
switch (intf->type)
{
case INTFSTREAM_FILE:
if (intf->file.fp)
return filestream_close(intf->file.fp);
return 0;
case INTFSTREAM_MEMORY:
if (intf->memory.fp)
memstream_close(intf->memory.fp);
return 0;
case INTFSTREAM_CHD:
#ifdef HAVE_CHD
if (intf->chd.fp)
chdstream_close(intf->chd.fp);
#endif
return 0;
}
return -1;
}
int
delim_output(FILE *stream, int *need_delimp,
int (*writer)(FILE *stream, void *data),
void *data)
{
int o;
/* If we don't need a delimiter, then we don't need to go
* through a temporary stream. It's all the same whether
* WRITER emits anything or not. */
if (!*need_delimp) {
o = writer(stream, data);
} else {
struct memstream ms;
if (memstream_init(&ms) < 0)
return -1;
o = writer(ms.stream, data);
if (memstream_close(&ms) < 0)
o = -1;
if (o > 0 && ((*need_delimp
&& account_output(&o, fprintf(stream, ", ")) < 0)
|| fwrite(ms.buf, 1, ms.size, stream) != ms.size))
o = -1;
memstream_destroy(&ms);
}
if (o < 0)
return -1;
*need_delimp = *need_delimp || o > 0;
return o;
}
int intfstream_close(intfstream_internal_t *intf)
{
if (!intf)
return -1;
switch (intf->type)
{
case INTFSTREAM_FILE:
return filestream_close(intf->file.fp);
case INTFSTREAM_MEMORY:
memstream_close(intf->memory.fp);
return 0;
}
return -1;
}
