[PATCH 13/17] Add RedsState reference to RedsStream

[Frediano Ziglio <fziglio@xxxxxxxxxx>]

From: Jonathon Jongsma <jjongsma@xxxxxxxxxx>

Allows us to remove use of global 'reds' variable from reds-stream.c.
Requires changing the RedsStream constructor to accept a RedsState arg.
---
 server/reds-stream.c       | 22 +++++++++++++---------
 server/reds-stream.h       |  3 ++-
 server/reds.c              |  2 +-
 server/tests/stream-test.c |  8 +++++---
 4 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/server/reds-stream.c b/server/reds-stream.c
index 2eb8f89..ec720e0 100644
--- a/server/reds-stream.c
+++ b/server/reds-stream.c
@@ -21,9 +21,9 @@
 
 #include "main-dispatcher.h"
 #include "red-common.h"
+#include "common/log.h"
 #include "reds-stream.h"
 #include "reds.h"
-#include "common/log.h"
 
 #include <errno.h>
 #include <netdb.h>
@@ -95,6 +95,7 @@ struct RedsStreamPrivate {
     ssize_t (*write)(RedsStream *s, const void *buf, size_t nbyte);
     ssize_t (*writev)(RedsStream *s, const struct iovec *iov, int iovcnt);
 
+    RedsState *reds;
 };
 
 static ssize_t stream_write_cb(RedsStream *s, const void *buf, size_t size)
@@ -167,7 +168,7 @@ static ssize_t stream_ssl_read_cb(RedsStream *s, void *buf, size_t size)
 void reds_stream_remove_watch(RedsStream* s)
 {
     if (s->watch) {
-        reds_get_core_interface(reds)->watch_remove(s->watch);
+        reds_get_core_interface(s->priv->reds)->watch_remove(s->watch);
         s->watch = NULL;
     }
 }
@@ -378,13 +379,14 @@ void reds_stream_set_channel(RedsStream *stream, int connection_id,
     stream->priv->info->id   = channel_id;
 }
 
-RedsStream *reds_stream_new(int socket)
+RedsStream *reds_stream_new(RedsState *reds, int socket)
 {
     RedsStream *stream;
 
     stream = spice_malloc0(sizeof(RedsStream) + sizeof(RedsStreamPrivate));
     stream->priv = (RedsStreamPrivate *)(stream+1);
     stream->priv->info = spice_new0(SpiceChannelEventInfo, 1);
+    stream->priv->reds = reds;
     reds_stream_set_socket(stream, socket);
 
     stream->priv->read = stream_read_cb;
@@ -485,21 +487,23 @@ static void async_read_handler(G_GNUC_UNUSED int fd,
                                void *data)
 {
     AsyncRead *async = (AsyncRead *)data;
+    RedsStream *stream = async->stream;
+    RedsState *reds = stream->priv->reds;
 
     for (;;) {
         int n = async->end - async->now;
 
         spice_assert(n > 0);
-        n = reds_stream_read(async->stream, async->now, n);
+        n = reds_stream_read(stream, async->now, n);
         if (n <= 0) {
             if (n < 0) {
                 switch (errno) {
                 case EAGAIN:
-                    if (!async->stream->watch) {
-                        async->stream->watch = reds_get_core_interface(reds)->watch_add(reds_get_core_interface(reds),
-                                                                                        async->stream->socket,
-                                                                                        SPICE_WATCH_EVENT_READ,
-                                                                                        async_read_handler, async);
+                    if (!stream->watch) {
+                        stream->watch = reds_get_core_interface(reds)->watch_add(reds_get_core_interface(reds),
+                                                                                 stream->socket,
+                                                                                 SPICE_WATCH_EVENT_READ,
+                                                                                 async_read_handler, async);
                     }
                     return;
                 case EINTR:
diff --git a/server/reds-stream.h b/server/reds-stream.h
index 72e5dd1..1123048 100644
--- a/server/reds-stream.h
+++ b/server/reds-stream.h
@@ -28,6 +28,7 @@
 typedef void (*AsyncReadDone)(void *opaque);
 typedef void (*AsyncReadError)(void *opaque, int err);
 
+typedef struct RedsState RedsState;
 typedef struct RedsStream RedsStream;
 typedef struct RedsStreamPrivate RedsStreamPrivate;
 
@@ -67,7 +68,7 @@ void reds_stream_push_channel_event(RedsStream *s, int event);
 void reds_stream_remove_watch(RedsStream* s);
 void reds_stream_set_channel(RedsStream *stream, int connection_id,
                              int channel_type, int channel_id);
-RedsStream *reds_stream_new(int socket);
+RedsStream *reds_stream_new(RedsState *reds, int socket);
 bool reds_stream_is_ssl(RedsStream *stream);
 RedsStreamSslStatus reds_stream_ssl_accept(RedsStream *stream);
 int reds_stream_enable_ssl(RedsStream *stream, SSL_CTX *ctx);
diff --git a/server/reds.c b/server/reds.c
index 4611c97..8bb0ce4 100644
--- a/server/reds.c
+++ b/server/reds.c
@@ -2324,7 +2324,7 @@ static RedLinkInfo *reds_init_client_connection(RedsState *reds, int socket)
 
     link = spice_new0(RedLinkInfo, 1);
     link->reds = reds;
-    link->stream = reds_stream_new(socket);
+    link->stream = reds_stream_new(reds, socket);
 
     /* gather info + send event */
 
diff --git a/server/tests/stream-test.c b/server/tests/stream-test.c
index f83f0e1..3aa059c 100644
--- a/server/tests/stream-test.c
+++ b/server/tests/stream-test.c
@@ -7,10 +7,12 @@
 #include "reds-stream.h"
 #include "basic_event_loop.h"
 
+static SpiceServer *server = NULL;
+
 static int server_init(void)
 {
     SpiceCoreInterface *core = basic_event_loop_init();
-    SpiceServer *server = spice_server_new();
+    server = spice_server_new();
 
     return spice_server_init(server, core);
 }
@@ -89,9 +91,9 @@ int main(int argc, char *argv[])
         return -1;
     }
 
-    st[0] = reds_stream_new(sv[0]);
+    st[0] = reds_stream_new(server, sv[0]);
     spice_assert(reds_stream_is_plain_unix(st[0]));
-    st[1] = reds_stream_new(sv[1]);
+    st[1] = reds_stream_new(server, sv[1]);
     spice_assert(reds_stream_is_plain_unix(st[1]));
 
     /* send stdin, for the fun of it */
-- 
2.5.0

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