[RISU PATCH v4 03/29] Hoist trace file and socket opening

[Richard Henderson <richard.henderson@linaro.org>]

We will want to share this code with --dump.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
v3: Hoist socket connecting as well as trace file opening.
---
 risu.c | 49 +++++++++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 26 deletions(-)

diff --git a/risu.c b/risu.c
index 059348f..2f6a677 100644
--- a/risu.c
+++ b/risu.c
@@ -363,6 +363,29 @@ int main(int argc, char **argv)
         }
     }
 
+    if (trace) {
+        if (strcmp(trace_fn, "-") == 0) {
+            comm_fd = ismaster ? STDOUT_FILENO : STDIN_FILENO;
+        } else {
+            if (ismaster) {
+                comm_fd = open(trace_fn, O_WRONLY | O_CREAT, S_IRWXU);
+            } else {
+                comm_fd = open(trace_fn, O_RDONLY);
+            }
+#ifdef HAVE_ZLIB
+            gz_trace_file = gzdopen(comm_fd, ismaster ? "wb9" : "rb");
+#endif
+        }
+    } else {
+        if (ismaster) {
+            fprintf(stderr, "master port %d\n", port);
+            comm_fd = master_connect(port);
+        } else {
+            fprintf(stderr, "apprentice host %s port %d\n", hostname, port);
+            comm_fd = apprentice_connect(hostname, port);
+        }
+    }
+
     imgfile = argv[optind];
     if (!imgfile) {
         fprintf(stderr, "Error: must specify image file name\n\n");
@@ -373,34 +396,8 @@ int main(int argc, char **argv)
     load_image(imgfile);
 
     if (ismaster) {
-        if (trace) {
-            if (strcmp(trace_fn, "-") == 0) {
-                comm_fd = STDOUT_FILENO;
-            } else {
-                comm_fd = open(trace_fn, O_WRONLY | O_CREAT, S_IRWXU);
-#ifdef HAVE_ZLIB
-                gz_trace_file = gzdopen(comm_fd, "wb9");
-#endif
-            }
-        } else {
-            fprintf(stderr, "master port %d\n", port);
-            comm_fd = master_connect(port);
-        }
         return master();
     } else {
-        if (trace) {
-            if (strcmp(trace_fn, "-") == 0) {
-                comm_fd = STDIN_FILENO;
-            } else {
-                comm_fd = open(trace_fn, O_RDONLY);
-#ifdef HAVE_ZLIB
-                gz_trace_file = gzdopen(comm_fd, "rb");
-#endif
-            }
-        } else {
-            fprintf(stderr, "apprentice host %s port %d\n", hostname, port);
-            comm_fd = apprentice_connect(hostname, port);
-        }
         return apprentice();
     }
 }
-- 
2.34.1