contrib/libshout/corrected-blocking-state.patch
2020-01-12 17:42:06 +11:00

126 lines
5.1 KiB
Diff

From 0ac7ed9e84c3871d4427acc1ce59dca5e4af21ef Mon Sep 17 00:00:00 2001
From: Philipp Schafft <lion@lion.leolix.org>
Date: Wed, 26 Jun 2019 18:58:44 +0000
Subject: [PATCH] Fix: Corrected blocking state of connections
Thanks to Bernd Geiser <bg@ferncast.de> for initial report.
Fixes: #2309
---
include/shout/shout.h.in | 8 +++++++-
src/connection.c | 13 +++++++------
src/shout.c | 7 +++++--
3 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/include/shout/shout.h.in b/include/shout/shout.h.in
index 6fda58b..297ff17 100644
--- a/include/shout/shout.h.in
+++ b/include/shout/shout.h.in
@@ -85,6 +85,11 @@ extern "C" {
#define SHOUT_TLS_RFC2818 ( 11) /* Use TLS for transport layer like HTTPS [RFC2818] does. */
#define SHOUT_TLS_RFC2817 ( 12) /* Use TLS via HTTP Upgrade:-header [RFC2817]. */
+/* Possible values for blocking */
+#define SHOUT_BLOCKING_DEFAULT (255) /* Use the default blocking setting. */
+#define SHOUT_BLOCKING_FULL ( 0) /* Block in all I/O related functions */
+#define SHOUT_BLOCKING_NONE ( 1) /* Do not block in I/O related functions */
+
#define SHOUT_AI_BITRATE "bitrate"
#define SHOUT_AI_SAMPLERATE "samplerate"
#define SHOUT_AI_CHANNELS "channels"
@@ -244,7 +249,8 @@ int shout_set_protocol(shout_t *self, unsigned int protocol);
unsigned int shout_get_protocol(shout_t *self);
/* Instructs libshout to use nonblocking I/O. Must be called before
- * shout_open (no switching back and forth midstream at the moment). */
+ * shout_open (no switching back and forth midstream at the moment).
+ * nonblocking is one of SHOUT_BLOCKING_xxx. */
int shout_set_nonblocking(shout_t* self, unsigned int nonblocking);
unsigned int shout_get_nonblocking(shout_t *self);
diff --git a/src/connection.c b/src/connection.c
index 07fc587..01b15ba 100644
--- a/src/connection.c
+++ b/src/connection.c
@@ -118,7 +118,7 @@ static struct timeval shout_connection_iter__wait_for_io__get_timeout(shout_conn
.tv_usec = (timeout % 1000) * 1000
};
return tv;
- } else if (con->nonblocking) {
+ } else if (con->nonblocking == SHOUT_BLOCKING_NONE) {
return tv_nonblocking;
} else {
return tv_blocking;
@@ -167,7 +167,7 @@ static shout_connection_return_state_t shout_connection_iter__socket(shout_conne
}
break;
case SHOUT_SOCKSTATE_CONNECTING:
- if (con->nonblocking) {
+ if (con->nonblocking == SHOUT_BLOCKING_NONE) {
ret = shout_connection_iter__wait_for_io(con, shout, 1, 1, 0);
if (ret != SHOUT_RS_DONE) {
return ret;
@@ -460,7 +460,7 @@ int shout_connection_iter(shout_connection_t *con, shout_t *shou
break; \
case SHOUT_RS_TIMEOUT: \
case SHOUT_RS_NOTNOW: \
- if (con->nonblocking) \
+ if (con->nonblocking == SHOUT_BLOCKING_NONE) \
return SHOUTERR_RETRY; \
retry = 1; \
break; \
@@ -518,7 +518,7 @@ int shout_connection_select_tlsmode(shout_connection_t *con, int
}
int shout_connection_set_nonblocking(shout_connection_t *con, unsigned int nonblocking)
{
- if (!con)
+ if (!con || (nonblocking != SHOUT_BLOCKING_DEFAULT && nonblocking != SHOUT_BLOCKING_FULL && nonblocking != SHOUT_BLOCKING_NONE))
return SHOUTERR_INSANE;
if (con->socket != SOCK_ERROR)
@@ -563,13 +563,14 @@ int shout_connection_connect(shout_connection_t *con, shout_t *s
if (con->socket != SOCK_ERROR || con->current_socket_state != SHOUT_SOCKSTATE_UNCONNECTED)
return SHOUTERR_BUSY;
- shout_connection_set_nonblocking(con, shout_get_nonblocking(shout));
+ if (con->nonblocking == SHOUT_BLOCKING_DEFAULT)
+ shout_connection_set_nonblocking(con, shout_get_nonblocking(shout));
port = shout->port;
if (shout_get_protocol(shout) == SHOUT_PROTOCOL_ICY)
port++;
- if (con->nonblocking) {
+ if (con->nonblocking == SHOUT_BLOCKING_NONE) {
con->socket = sock_connect_non_blocking(shout->host, port);
} else {
con->socket = sock_connect(shout->host, port);
diff --git a/src/shout.c b/src/shout.c
index 1439c14..9845d13 100644
--- a/src/shout.c
+++ b/src/shout.c
@@ -417,7 +417,7 @@ int shout_set_metadata(shout_t *self, shout_metadata_t *metadata)
#ifdef HAVE_OPENSSL
shout_connection_select_tlsmode(connection, self->tls_mode);
#endif
- shout_connection_set_nonblocking(connection, 0);
+ shout_connection_set_nonblocking(connection, SHOUT_BLOCKING_FULL);
connection->target_message_state = SHOUT_MSGSTATE_PARSED_FINAL;
@@ -989,7 +989,10 @@ unsigned int shout_get_protocol(shout_t *self)
int shout_set_nonblocking(shout_t *self, unsigned int nonblocking)
{
- if (!self || (nonblocking != 0 && nonblocking != 1))
+ if (nonblocking == SHOUT_BLOCKING_DEFAULT)
+ nonblocking = SHOUT_BLOCKING_FULL;
+
+ if (!self || (nonblocking != SHOUT_BLOCKING_FULL && nonblocking != SHOUT_BLOCKING_NONE))
return SHOUTERR_INSANE;
if (self->connection)
--
2.22.0