Initial checkin of gRPC to third_party/

third_party/grpc/test/core/iomgr/timer_list_test.c

Index: third_party/grpc/test/core/iomgr/timer_list_test.c
diff --git a/third_party/grpc/test/core/iomgr/timer_list_test.c b/third_party/grpc/test/core/iomgr/timer_list_test.c
new file mode 100644
index 0000000000000000000000000000000000000000..7a21fdd5c1084bb6c69475b07624974401589256
--- /dev/null
+++ b/third_party/grpc/test/core/iomgr/timer_list_test.c
@@ -0,0 +1,160 @@
+/*
+ *
+ * Copyright 2015-2016, 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/iomgr/timer.h"
+
+#include <string.h>
+
+#include <grpc/support/log.h>
+#include "test/core/util/test_config.h"
+
+#define MAX_CB 30
+
+static int cb_called[MAX_CB][2];
+
+static void cb(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
+  cb_called[(intptr_t)arg][success]++;
+}
+
+static void add_test(void) {
+  gpr_timespec start = gpr_now(GPR_CLOCK_REALTIME);
+  int i;
+  grpc_timer timers[20];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+
+  grpc_timer_list_init(start);
+  memset(cb_called, 0, sizeof(cb_called));
+
+  /* 10 ms timers.  will expire in the current epoch */
+  for (i = 0; i < 10; i++) {
+    grpc_timer_init(&exec_ctx, &timers[i],
+                    gpr_time_add(start, gpr_time_from_millis(10, GPR_TIMESPAN)),
+                    cb, (void *)(intptr_t)i, start);
+  }
+
+  /* 1010 ms timers.  will expire in the next epoch */
+  for (i = 10; i < 20; i++) {
+    grpc_timer_init(
+        &exec_ctx, &timers[i],
+        gpr_time_add(start, gpr_time_from_millis(1010, GPR_TIMESPAN)), cb,
+        (void *)(intptr_t)i, start);
+  }
+
+  /* collect timers.  Only the first batch should be ready. */
+  GPR_ASSERT(grpc_timer_check(
+      &exec_ctx, gpr_time_add(start, gpr_time_from_millis(500, GPR_TIMESPAN)),
+      NULL));
+  grpc_exec_ctx_finish(&exec_ctx);
+  for (i = 0; i < 20; i++) {
+    GPR_ASSERT(cb_called[i][1] == (i < 10));
+    GPR_ASSERT(cb_called[i][0] == 0);
+  }
+
+  GPR_ASSERT(!grpc_timer_check(
+                 &exec_ctx,
+                 gpr_time_add(start, gpr_time_from_millis(600, GPR_TIMESPAN)),
+                 NULL));
+  grpc_exec_ctx_finish(&exec_ctx);
+  for (i = 0; i < 30; i++) {
+    GPR_ASSERT(cb_called[i][1] == (i < 10));
+    GPR_ASSERT(cb_called[i][0] == 0);
+  }
+
+  /* collect the rest of the timers */
+  GPR_ASSERT(grpc_timer_check(
+      &exec_ctx, gpr_time_add(start, gpr_time_from_millis(1500, GPR_TIMESPAN)),
+      NULL));
+  grpc_exec_ctx_finish(&exec_ctx);
+  for (i = 0; i < 30; i++) {
+    GPR_ASSERT(cb_called[i][1] == (i < 20));
+    GPR_ASSERT(cb_called[i][0] == 0);
+  }
+
+  GPR_ASSERT(!grpc_timer_check(
+                 &exec_ctx,
+                 gpr_time_add(start, gpr_time_from_millis(1600, GPR_TIMESPAN)),
+                 NULL));
+  for (i = 0; i < 30; i++) {
+    GPR_ASSERT(cb_called[i][1] == (i < 20));
+    GPR_ASSERT(cb_called[i][0] == 0);
+  }
+
+  grpc_timer_list_shutdown(&exec_ctx);
+  grpc_exec_ctx_finish(&exec_ctx);
+}
+
+static gpr_timespec tfm(int m) {
+  gpr_timespec t = gpr_time_from_millis(m, GPR_TIMESPAN);
+  t.clock_type = GPR_CLOCK_REALTIME;
+  return t;
+}
+
+/* Cleaning up a list with pending timers. */
+void destruction_test(void) {
+  grpc_timer timers[5];
+  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
+
+  grpc_timer_list_init(gpr_time_0(GPR_CLOCK_REALTIME));
+  memset(cb_called, 0, sizeof(cb_called));
+
+  grpc_timer_init(&exec_ctx, &timers[0], tfm(100), cb, (void *)(intptr_t)0,
+                  gpr_time_0(GPR_CLOCK_REALTIME));
+  grpc_timer_init(&exec_ctx, &timers[1], tfm(3), cb, (void *)(intptr_t)1,
+                  gpr_time_0(GPR_CLOCK_REALTIME));
+  grpc_timer_init(&exec_ctx, &timers[2], tfm(100), cb, (void *)(intptr_t)2,
+                  gpr_time_0(GPR_CLOCK_REALTIME));
+  grpc_timer_init(&exec_ctx, &timers[3], tfm(3), cb, (void *)(intptr_t)3,
+                  gpr_time_0(GPR_CLOCK_REALTIME));
+  grpc_timer_init(&exec_ctx, &timers[4], tfm(1), cb, (void *)(intptr_t)4,
+                  gpr_time_0(GPR_CLOCK_REALTIME));
+  GPR_ASSERT(1 == grpc_timer_check(&exec_ctx, tfm(2), NULL));
+  grpc_exec_ctx_finish(&exec_ctx);
+  GPR_ASSERT(1 == cb_called[4][1]);
+  grpc_timer_cancel(&exec_ctx, &timers[0]);
+  grpc_timer_cancel(&exec_ctx, &timers[3]);
+  grpc_exec_ctx_finish(&exec_ctx);
+  GPR_ASSERT(1 == cb_called[0][0]);
+  GPR_ASSERT(1 == cb_called[3][0]);
+
+  grpc_timer_list_shutdown(&exec_ctx);
+  grpc_exec_ctx_finish(&exec_ctx);
+  GPR_ASSERT(1 == cb_called[1][0]);
+  GPR_ASSERT(1 == cb_called[2][0]);
+}
+
+int main(int argc, char **argv) {
+  grpc_test_init(argc, argv);
+  add_test();
+  destruction_test();
+  return 0;
+}