Infrastructure for timer insertion, logging, and testing.

1 files changed, 83 insertions, 0 deletions

diff --git a/test/core/statistics/timers_test.c b/test/core/statistics/timers_test.c
new file mode 100644
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+++ b/test/core/statistics/timers_test.c
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+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/statistics/timers.h"
+#include <stdlib.h>
+#include "test/core/util/test_config.h"
+
+void test_log_events(int num_seqs) {
+  int start = 0;
+  int *state;
+  state = calloc(num_seqs,sizeof(state[0]));
+  while (start < num_seqs) {
+    int i;
+    int row;
+    if (state[start] == 3) { /* Already done with this posn */
+      start++;
+      continue;
+    }
+
+    row = rand() % 10; /* how many in a row */
+    for (i = start; (i < start+row) && (i < num_seqs); i++) {
+      int j;
+      int advance = 1 + rand() % 3; /* how many to advance by */
+      for (j=0; j<advance; j++) {
+        switch (state[i]) {
+          case 0:
+            GRPC_TIMER_MARK(STATE_0, i);
+            state[i]++;
+            break;
+          case 1:
+            GRPC_TIMER_MARK(STATE_1, i);
+            state[i]++;
+            break;
+          case 2:
+            GRPC_TIMER_MARK(STATE_2, i);
+            state[i]++;
+            break;
+          case 3:
+            break;
+        }
+      }
+    }
+  }
+  free(state);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  grpc_timers_log_global_init();
+  test_log_events(1000000);
+  grpc_timers_log_global_destroy();
+  return 0;
+}