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rtl_tcp: add option to tame the linked list

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This commit is contained in:
Hoernchen 2013-01-09 23:57:47 +01:00
parent 5673a56223
commit 1cde8634ca
1 changed files with 16 additions and 1 deletions
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17
src/rtl_tcp.c
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@ -80,6 +80,7 @@ static rtlsdr_dev_t *dev = NULL;
int global_numq = 0; int global_numq = 0;
static struct llist *ll_buffers = 0; static struct llist *ll_buffers = 0;
int llbuf_num=500;
static int do_exit = 0; static int do_exit = 0;
@ -92,6 +93,7 @@ void usage(void)
"\t[-g gain (default: 0 for auto)]\n" "\t[-g gain (default: 0 for auto)]\n"
"\t[-s samplerate in Hz (default: 2048000 Hz)]\n" "\t[-s samplerate in Hz (default: 2048000 Hz)]\n"
"\t[-b number of buffers (default: 32, set by library)]\n" "\t[-b number of buffers (default: 32, set by library)]\n"
"\t[-n max number of linked list buffers to keep (default: 500)]\n"
"\t[-d device index (default: 0)]\n"); "\t[-d device index (default: 0)]\n");
exit(1); exit(1);
} }
@ -157,6 +159,16 @@ void rtlsdr_callback(unsigned char *buf, uint32_t len, void *ctx)
cur = cur->next; cur = cur->next;
num_queued++; num_queued++;
} }
if(llbuf_num && llbuf_num == num_queued-2){
struct llist *curelem;
free(ll_buffers->data);
curelem = ll_buffers->next;
free(ll_buffers);
ll_buffers = curelem;
}
cur->next = rpt; cur->next = rpt;
if (num_queued > global_numq) if (num_queued > global_numq)
@ -397,7 +409,7 @@ int main(int argc, char **argv)
struct sigaction sigact, sigign; struct sigaction sigact, sigign;
#endif #endif
while ((opt = getopt(argc, argv, "a:p:f:g:s:b:d:")) != -1) { while ((opt = getopt(argc, argv, "a:p:f:g:s:b:n:d:")) != -1) {
switch (opt) { switch (opt) {
case 'd': case 'd':
dev_index = atoi(optarg); dev_index = atoi(optarg);
@ -420,6 +432,9 @@ int main(int argc, char **argv)
case 'b': case 'b':
buf_num = atoi(optarg); buf_num = atoi(optarg);
break; break;
case 'n':
llbuf_num = atoi(optarg);
break;
default: default:
usage(); usage();
break; break;