Add contributed test

1 files changed, 48 insertions, 0 deletions

diff --git a/test/core/surface/concurrent_connectivity_test.c b/test/core/surface/concurrent_connectivity_test.c
new file mode 100644
index 0000000000..d8639f5e51
--- /dev/null
+++ b/test/core/surface/concurrent_connectivity_test.c
@@ -0,0 +1,48 @@
+#include <stdio.h>
+
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/thd.h>
+
+#define NUM_THREADS 100
+static grpc_channel* channels[NUM_THREADS];
+static grpc_completion_queue* queues[NUM_THREADS];
+
+void create_loop_destroy(void* actually_an_int) {
+  int thread_index = (int)(actually_an_int);
+  for (int i = 0; i < 10; ++i) {
+    grpc_completion_queue* cq = grpc_completion_queue_create(NULL);
+    grpc_channel* chan = grpc_insecure_channel_create("localhost", NULL, NULL);
+
+    channels[thread_index] = chan;
+    queues[thread_index] = cq;
+
+    gpr_timespec inf_future = gpr_inf_future(GPR_CLOCK_REALTIME);
+    gpr_timespec delta = gpr_time_from_millis(10, GPR_TIMESPAN);
+    for (int j = 0; j < 10; ++j) {
+      gpr_timespec later_time =
+          gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), delta);
+      grpc_connectivity_state state =
+          grpc_channel_check_connectivity_state(chan, 1);
+      grpc_channel_watch_connectivity_state(chan, state, later_time, cq, NULL);
+      grpc_completion_queue_next(cq, inf_future, NULL);
+    }
+    grpc_channel_destroy(channels[thread_index]);
+    grpc_completion_queue_destroy(queues[thread_index]);
+  }
+}
+
+int main() {
+  grpc_init();
+  gpr_thd_id threads[NUM_THREADS];
+  for (intptr_t i = 0; i < NUM_THREADS; ++i) {
+    gpr_thd_options options = gpr_thd_options_default();
+    gpr_thd_options_set_joinable(&options);
+    gpr_thd_new(&threads[i], create_loop_destroy, (void*)i, &options);
+  }
+  for (int i = 0; i < NUM_THREADS; ++i) {
+    gpr_thd_join(threads[i]);
+  }
+  grpc_shutdown();
+  return 0;
+}