Reengineer the socket splicing regression tests:

- Move the tests from splice to new sosplice directory for consistent naming.
- Split the API tests and the TCP splicing tests into separate directories.
- Create some tests for the upcoming UDP splicing.
- Tests can be run in obj directories now.
- The API tests can run both on a local and on a remote machine now.
- Fix the forking TCP tests which splice and read or write simultaneously.
- Bunch of little fixes for races in the tests.
- Deduplicate code, move checks into common functions.

1 files changed, 22 insertions, 0 deletions

diff --git a/regress/sys/kern/sosplice/tcp/args-write.pl b/regress/sys/kern/sosplice/tcp/args-write.pl
new file mode 100644
index 00000000000..22fa57eba6f
--- /dev/null
+++ b/regress/sys/kern/sosplice/tcp/args-write.pl
@@ -0,0 +1,22 @@
+# test mix write and relay
+
+use strict;
+use warnings;
+
+our %args = (
+    client => {
+	len => 65521,
+	nocheck => 1,
+    },
+    relay => {
+	func => sub {
+	    write_stream(@_, 32749);
+	    IO::Handle::flush(\*STDOUT);
+	    relay(@_);
+	    write_stream(@_, 2039);
+	},
+	nocheck => 1,
+    },
+    len => 100309,
+    md5 => "0efc7833e5c0652823ca63eaccb9918f",
+);