misc: add tracedump API plugin

Type: feature

Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I586547508003b95eaa74e18e4a5ac6f72986822c

1 files changed, 150 insertions, 0 deletions

diff --git a/src/plugins/tracedump/tracedump_test.c b/src/plugins/tracedump/tracedump_test.c
new file mode 100644
index 00000000000..ba811b5d38c
--- /dev/null
+++ b/src/plugins/tracedump/tracedump_test.c
@@ -0,0 +1,150 @@
+/*
+ * tracedump.c - tracedump vpp-api-test plug-in
+ *
+ * Copyright (c) <current-year> <your-organization>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vat/vat.h>
+#include <vlibapi/api.h>
+#include <vlibmemory/api.h>
+#include <vppinfra/error.h>
+#include <vnet/api_errno.h>
+#include <stdbool.h>
+
+#define __plugin_msg_base tracedump_test_main.msg_id_base
+#include <vlibapi/vat_helper_macros.h>
+
+/* Declare message IDs */
+#include <tracedump/tracedump.api_enum.h>
+#include <tracedump/tracedump.api_types.h>
+
+typedef struct
+{
+  /* API message ID base */
+  u16 msg_id_base;
+  vat_main_t *vat_main;
+} tracedump_test_main_t;
+
+tracedump_test_main_t tracedump_test_main;
+
+static void
+vl_api_trace_details_t_handler (vl_api_trace_details_t * dmp)
+{
+  u32 thread_id, position;
+
+  thread_id = clib_net_to_host_u32 (dmp->thread_id);
+  position = clib_net_to_host_u32 (dmp->position);
+  fformat
+    (stdout,
+     "thread %d position %d more_this_thread %d more_threads %d done %d\n",
+     thread_id, position, (u32) dmp->more_this_thread,
+     (u32) dmp->more_threads, (u32) dmp->done);
+  fformat (stdout, "  %U\n", vl_api_format_string, (&dmp->trace_data));
+}
+
+
+static void
+vl_api_trace_dump_reply_t_handler (vl_api_trace_dump_reply_t * rmp)
+{
+  tracedump_test_main_t *ttm = &tracedump_test_main;
+  vat_main_t *vam = ttm->vat_main;
+  vl_api_trace_dump_t *mp;
+  i32 retval = (i32) clib_net_to_host_u32 (rmp->retval);
+  u32 thread_id, position;
+
+  if (retval != 0 || rmp->done)
+    {
+      vam->result_ready = 1;
+      vam->retval = retval;
+
+      /* Clear the cache */
+      if (retval == 0 && rmp->flush_only == 0)
+	{
+	  M (TRACE_DUMP, mp);
+	  mp->clear_cache = 1;
+	  mp->thread_id = 0xFFFFFFFF;
+	  mp->position = 0xFFFFFFFF;
+	  S (mp);
+	}
+      return;
+    }
+
+  /* Figure out where the next batch starts */
+  thread_id = clib_host_to_net_u32 (rmp->last_thread_id);
+  position = clib_host_to_net_u32 (rmp->last_position);
+
+  if (rmp->more_threads)
+    {
+      position = 0;
+      thread_id++;
+    }
+  else
+    position++;
+
+  M (TRACE_DUMP, mp);
+  mp->clear_cache = 0;
+  mp->thread_id = clib_host_to_net_u32 (thread_id);
+  mp->position = clib_host_to_net_u32 (position);
+  mp->max_records = clib_host_to_net_u32 (10);
+  S (mp);
+}
+
+static int
+api_trace_dump (vat_main_t * vam)
+{
+  vl_api_trace_dump_t *mp;
+  int ret;
+
+  M (TRACE_DUMP, mp);
+  mp->clear_cache = 1;
+  mp->thread_id = 0;
+  mp->position = 0;
+  mp->max_records = clib_host_to_net_u32 (10);
+
+  S (mp);
+
+  W (ret);
+  return ret;
+}
+
+#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
+#define vl_endianfun
+#include <tracedump/tracedump.api.h>
+#undef vl_endianfun
+#define vl_printfun
+#include <tracedump/tracedump.api.h>
+#undef vl_printfun
+
+void
+manual_setup_message_id_table (vat_main_t * vam)
+{
+  vl_msg_api_set_handlers (VL_API_TRACE_DETAILS
+			   + tracedump_test_main.msg_id_base, "trace_details",
+			   vl_api_trace_details_t_handler, vl_noop_handler,
+			   vl_api_trace_details_t_endian,
+			   vl_api_trace_details_t_print,
+			   sizeof (vl_api_trace_details_t), 1);
+}
+
+#define VL_API_LOCAL_SETUP_MESSAGE_ID_TABLE manual_setup_message_id_table
+#define VL_API_TRACE_DUMP_REPLY_T_HANDLER
+
+#include <tracedump/tracedump.api_test.c>
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */