[FFmpeg-devel] [PATCH 1/4] libformat/tcp: Moved all options to a separate structure

[Karthick J]

---
 libavformat/tcp.c | 46 +++++++++++++++++++++++++---------------------
 1 file changed, 25 insertions(+), 21 deletions(-)

diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index 07b4ed9..06368ff 100644
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -32,18 +32,22 @@
 #include <poll.h>
 #endif
 
-typedef struct TCPContext {
-    const AVClass *class;
-    int fd;
+typedef struct TCPOptions {
     int listen;
-    int open_timeout;
     int rw_timeout;
     int listen_timeout;
     int recv_buffer_size;
     int send_buffer_size;
+} TCPOptions;
+
+typedef struct TCPContext {
+    const AVClass *class;
+    int fd;
+    int open_timeout;
+    TCPOptions options;
 } TCPContext;
 
-#define OFFSET(x) offsetof(TCPContext, x)
+#define OFFSET(x) (offsetof(TCPContext, options) + offsetof(TCPOptions, x))
 #define D AV_OPT_FLAG_DECODING_PARAM
 #define E AV_OPT_FLAG_ENCODING_PARAM
 static const AVOption options[] = {
@@ -87,26 +91,26 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
     if (p) {
         if (av_find_info_tag(buf, sizeof(buf), "listen", p)) {
             char *endptr = NULL;
-            s->listen = strtol(buf, &endptr, 10);
+            s->options.listen = strtol(buf, &endptr, 10);
             /* assume if no digits were found it is a request to enable it */
             if (buf == endptr)
-                s->listen = 1;
+                s->options.listen = 1;
         }
         if (av_find_info_tag(buf, sizeof(buf), "timeout", p)) {
-            s->rw_timeout = strtol(buf, NULL, 10);
+            s->options.rw_timeout = strtol(buf, NULL, 10);
         }
         if (av_find_info_tag(buf, sizeof(buf), "listen_timeout", p)) {
-            s->listen_timeout = strtol(buf, NULL, 10);
+            s->options.listen_timeout = strtol(buf, NULL, 10);
         }
     }
-    if (s->rw_timeout >= 0) {
+    if (s->options.rw_timeout >= 0) {
         s->open_timeout =
-        h->rw_timeout   = s->rw_timeout;
+        h->rw_timeout   = s->options.rw_timeout;
     }
     hints.ai_family = AF_UNSPEC;
     hints.ai_socktype = SOCK_STREAM;
     snprintf(portstr, sizeof(portstr), "%d", port);
-    if (s->listen)
+    if (s->options.listen)
         hints.ai_flags |= AI_PASSIVE;
     if (!hostname[0])
         ret = getaddrinfo(NULL, portstr, &hints, &ai);
@@ -142,21 +146,21 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
 
     /* Set the socket's send or receive buffer sizes, if specified.
        If unspecified or setting fails, system default is used. */
-    if (s->recv_buffer_size > 0) {
-        setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &s->recv_buffer_size, sizeof (s->recv_buffer_size));
+    if (s->options.recv_buffer_size > 0) {
+        setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &s->options.recv_buffer_size, sizeof (s->options.recv_buffer_size));
     }
-    if (s->send_buffer_size > 0) {
-        setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &s->send_buffer_size, sizeof (s->send_buffer_size));
+    if (s->options.send_buffer_size > 0) {
+        setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &s->options.send_buffer_size, sizeof (s->options.send_buffer_size));
     }
 
-    if (s->listen == 2) {
+    if (s->options.listen == 2) {
         // multi-client
         if ((ret = ff_listen(fd, cur_ai->ai_addr, cur_ai->ai_addrlen)) < 0)
             goto fail1;
-    } else if (s->listen == 1) {
+    } else if (s->options.listen == 1) {
         // single client
         if ((ret = ff_listen_bind(fd, cur_ai->ai_addr, cur_ai->ai_addrlen,
-                                  s->listen_timeout, h)) < 0)
+                                  s->options.listen_timeout, h)) < 0)
             goto fail1;
         // Socket descriptor already closed here. Safe to overwrite to client one.
         fd = ret;
@@ -198,11 +202,11 @@ static int tcp_accept(URLContext *s, URLContext **c)
     TCPContext *sc = s->priv_data;
     TCPContext *cc;
     int ret;
-    av_assert0(sc->listen);
+    av_assert0(sc->options.listen);
     if ((ret = ffurl_alloc(c, s->filename, s->flags, &s->interrupt_callback)) < 0)
         return ret;
     cc = (*c)->priv_data;
-    ret = ff_accept(sc->fd, sc->listen_timeout, s);
+    ret = ff_accept(sc->fd, sc->options.listen_timeout, s);
     if (ret < 0)
         return ret;
     cc->fd = ret;
-- 
1.9.1