diff --git a/lib/ngtcp2_acktr.c b/lib/ngtcp2_acktr.c
index e8a0ce35ca79db8c7b078c12016ec2d725575f40..2b035a5104c22c09041787893aa92dd7dda5e324 100644
--- a/lib/ngtcp2_acktr.c
+++ b/lib/ngtcp2_acktr.c
@@ -214,7 +214,7 @@ ngtcp2_ksl_it ngtcp2_acktr_get(ngtcp2_acktr *acktr) {
ngtcp2_acktr_ack_entry *ngtcp2_acktr_add_ack(ngtcp2_acktr *acktr,
uint64_t pkt_num, ngtcp2_ack *fr,
- ngtcp2_tstamp ts, int ack_only) {
+ ngtcp2_tstamp ts) {
ngtcp2_acktr_ack_entry *ent;
if (ngtcp2_ringbuf_full(&acktr->acks)) {
@@ -227,7 +227,6 @@ ngtcp2_acktr_ack_entry *ngtcp2_acktr_add_ack(ngtcp2_acktr *acktr,
ent->ack = fr;
ent->pkt_num = pkt_num;
ent->ts = ts;
- ent->ack_only = (uint8_t)ack_only;
return ent;
}
diff --git a/lib/ngtcp2_acktr.h b/lib/ngtcp2_acktr.h
index 2b57c22a96fcf0ea8793b21e7cd2d050770070df..6cc2868f57297f554306a535b5c0dd1c4f17fa28 100644
--- a/lib/ngtcp2_acktr.h
+++ b/lib/ngtcp2_acktr.h
@@ -82,7 +82,6 @@ typedef struct {
ngtcp2_ack *ack;
uint64_t pkt_num;
ngtcp2_tstamp ts;
- uint8_t ack_only;
} ngtcp2_acktr_ack_entry;
typedef enum {
@@ -177,13 +176,12 @@ ngtcp2_ksl_it ngtcp2_acktr_get(ngtcp2_acktr *acktr);
/*
* ngtcp2_acktr_add_ack adds the outgoing ACK frame |fr| to |acktr|.
* |pkt_num| is the packet number which |fr| belongs. This function
- * transfers the ownership of |fr| to |acktr|. |ack_only| is nonzero
- * if the packet contains an ACK frame only. This function returns a
- * pointer to the object it adds.
+ * transfers the ownership of |fr| to |acktr|. This function returns
+ * a pointer to the object it adds.
*/
ngtcp2_acktr_ack_entry *ngtcp2_acktr_add_ack(ngtcp2_acktr *acktr,
uint64_t pkt_num, ngtcp2_ack *fr,
- ngtcp2_tstamp ts, int ack_only);
+ ngtcp2_tstamp ts);
/*
* ngtcp2_acktr_recv_ack processes the incoming ACK frame |fr|.
diff --git a/lib/ngtcp2_conn.c b/lib/ngtcp2_conn.c
index a7080a84b6678daf485e930fd2f9b1a6c5a08123..4106dce60f471a254958f86c4f885745e7b2fde7 100644
--- a/lib/ngtcp2_conn.c
+++ b/lib/ngtcp2_conn.c
@@ -973,7 +973,6 @@ static ssize_t conn_write_handshake_pkt(ngtcp2_conn *conn, uint8_t *dest,
ssize_t spktlen;
ngtcp2_crypto_ctx ctx;
ngtcp2_rtb_entry *rtbent;
- ngtcp2_acktr_ack_entry *ack_ent = NULL;
ngtcp2_pktns *pktns;
size_t left;
uint8_t flags = NGTCP2_RTB_FLAG_NONE;
@@ -1148,8 +1147,7 @@ static ssize_t conn_write_handshake_pkt(ngtcp2_conn *conn, uint8_t *dest,
ngtcp2_mem_free(conn->mem, ackfr);
} else {
ngtcp2_acktr_commit_ack(&pktns->acktr);
- ack_ent = ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack,
- ts, 0 /* ack_only */);
+ ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack, ts);
/* Now ackfr is owned by conn->acktr. */
pkt_empty = 0;
}
@@ -1194,8 +1192,6 @@ static ssize_t conn_write_handshake_pkt(ngtcp2_conn *conn, uint8_t *dest,
ngtcp2_rtb_entry_del(rtbent, conn->mem);
return rv;
}
- } else if (ack_ent) {
- ack_ent->ack_only = 1;
}
++pktns->last_tx_pkt_num;
@@ -1230,7 +1226,6 @@ static ssize_t conn_write_handshake_ack_pkt(ngtcp2_conn *conn, uint8_t *dest,
ngtcp2_crypto_ctx ctx;
ngtcp2_pktns *pktns;
ngtcp2_rtb_entry *rtbent;
- ngtcp2_acktr_ack_entry *ack_ent = NULL;
ssize_t spktlen;
int force_initial;
@@ -1300,9 +1295,7 @@ static ssize_t conn_write_handshake_ack_pkt(ngtcp2_conn *conn, uint8_t *dest,
ngtcp2_mem_free(conn->mem, ackfr);
} else {
ngtcp2_acktr_commit_ack(&pktns->acktr);
-
- ack_ent = ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack, ts,
- 0 /* ack_only*/);
+ ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack, ts);
}
ackfr = NULL;
}
@@ -1345,8 +1338,6 @@ static ssize_t conn_write_handshake_ack_pkt(ngtcp2_conn *conn, uint8_t *dest,
if (spktlen < 0) {
return spktlen;
}
-
- ack_ent->ack_only = 1;
}
++pktns->last_tx_pkt_num;
@@ -1588,7 +1579,6 @@ static ssize_t conn_write_pkt(ngtcp2_conn *conn, uint8_t *dest, size_t destlen,
ngtcp2_rtb_entry *ent;
ngtcp2_strm *strm;
int pkt_empty = 1;
- ngtcp2_acktr_ack_entry *ack_ent = NULL;
size_t ndatalen = 0;
int send_stream = 0;
int stream_blocked = 0;
@@ -1949,9 +1939,7 @@ tx_strmq_finish:
} else {
ngtcp2_acktr_commit_ack(&pktns->acktr);
pkt_empty = 0;
-
- ack_ent = ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack,
- ts, 0 /*ack_only*/);
+ ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack, ts);
/* Now ackfr is owned by conn->acktr. */
pkt_empty = 0;
}
@@ -2009,8 +1997,6 @@ tx_strmq_finish:
ngtcp2_strm_shutdown(data_strm, NGTCP2_STRM_FLAG_SHUT_WR);
}
}
- } else if (ack_ent) {
- ack_ent->ack_only = 1;
}
if (pdatalen && send_stream) {
@@ -2116,8 +2102,7 @@ static ssize_t conn_write_single_frame_pkt(ngtcp2_conn *conn, uint8_t *dest,
/* Do this when we are sure that there is no error. */
if (fr->type == NGTCP2_FRAME_ACK) {
ngtcp2_acktr_commit_ack(&pktns->acktr);
- ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &fr->ack, ts,
- 1 /* ack_only */);
+ ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &fr->ack, ts);
}
++pktns->last_tx_pkt_num;
@@ -2274,8 +2259,7 @@ static ssize_t conn_write_probe_ping(ngtcp2_conn *conn, uint8_t *dest,
ngtcp2_mem_free(conn->mem, ackfr);
} else {
ngtcp2_acktr_commit_ack(&pktns->acktr);
- ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack, ts,
- 0 /* ack_only */);
+ ngtcp2_acktr_add_ack(&pktns->acktr, hd.pkt_num, &ackfr->ack, ts);
}
ackfr = NULL;
}
diff --git a/tests/ngtcp2_acktr_test.c b/tests/ngtcp2_acktr_test.c
index 4e51f00f4d846ccf134bbecf659e7ab448bbc1aa..9de99965adce42e5690e7d208d5d7cb28c3a3e46 100644
--- a/tests/ngtcp2_acktr_test.c
+++ b/tests/ngtcp2_acktr_test.c
@@ -332,7 +332,7 @@ void test_ngtcp2_acktr_recv_ack(void) {
blks[2].gap = 3; /* 4486, 4485, 4484, (4483) */
blks[2].blklen = 1; /* 4482, 4481 */
- ngtcp2_acktr_add_ack(&acktr, pkt_num, fr, 1000000009, 0 /* ack_only */);
+ ngtcp2_acktr_add_ack(&acktr, pkt_num, fr, 1000000009);
}
ackfr.type = NGTCP2_FRAME_ACK;