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Added TCP_SNDQUEUELOWAT corresponding to TCP_SNDLOWAT and added tcp_sndqueuelen() - this fixes bug #28605

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This commit is contained in:
goldsimon
2010-01-27 18:24:57 +00:00
parent 853e33bdb4
commit 04a8b0f85d
5 changed files with 34 additions and 12 deletions
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10
src/api/api_msg.c
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@@ -292,7 +292,10 @@ sent_tcp(void *arg, struct tcp_pcb *pcb, u16_t len)
}
if (conn) {
if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT)) {
/* If the queued byte- or pbuf-count drops below the configured low-water limit,
let select mark this pcb as writable again. */
if ((conn->pcb.tcp != NULL) && (tcp_sndbuf(conn->pcb.tcp) > TCP_SNDLOWAT) &&
(tcp_sndqueuelen(conn->pcb.tcp) < TCP_SNDQUEUELOWAT)) {
API_EVENT(conn, NETCONN_EVT_SENDPLUS, len);
}
}
@@ -1101,7 +1104,10 @@ do_writemore(struct netconn *conn)
conn->state = NETCONN_NONE;
}
err = tcp_output_nagle(conn->pcb.tcp);
if ((err == ERR_OK) && (tcp_sndbuf(conn->pcb.tcp) <= TCP_SNDLOWAT)) {
/* If the queued byte- or pbuf-count exceeds the configured low-water limit,
let select mark this pcb as non-writable. */
if ((err == ERR_OK) && (tcp_sndbuf(conn->pcb.tcp) <= TCP_SNDLOWAT) ||
(tcp_sndqueuelen(conn->pcb.tcp) >= TCP_SNDQUEUELOWAT)) {
API_EVENT(conn, NETCONN_EVT_SENDMINUS, len);
}
} else if (err == ERR_MEM) {