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allow pop without dest

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MightyPork
2023-01-12 23:58:44 +01:00
parent 73e0d601db
commit 3d96951ce3
1 changed files with 9 additions and 4 deletions
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circbuf_deque/circbuf.c
+9 -4
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@@ -107,14 +107,17 @@ bool cbuf_push(CircBuf *cb, const void *source)
/** Pop one element from the front_writepos */
bool cbuf_pop(CircBuf *cb, void *dest)
{
if (cb == NULL || dest == NULL || cb->num_used == 0) {
if (cb == NULL || cb->num_used == 0) {
return false;
}
cb->num_used--;
circbuf_size_t f = front_writepos(cb);
read_buffer(cb, f, dest);
if (dest != NULL) {
read_buffer(cb, f, dest);
}
#ifdef CIRCBUF_ZERO_FREE_SLOTS
memset(PV_OFFS(cb->buf, cb->elem_size, f), 0, cb->elem_size);
@@ -196,11 +199,13 @@ bool cbuf_push_back(CircBuf *cb, const void *source)
/** Pop one element from the back */
bool cbuf_pop_back(CircBuf *cb, void *dest)
{
if (cb == NULL || dest == NULL || cb->num_used == 0) {
if (cb == NULL || cb->num_used == 0) {
return false;
}
read_buffer(cb, cb->back, dest);
if (dest != NULL) {
read_buffer(cb, cb->back, dest);
}
#ifdef CIRCBUF_ZERO_FREE_SLOTS
memset(PV_OFFS(cb->buf, cb->elem_size, cb->back), 0, cb->elem_size);