Use macros instead of const variables

test/core/iomgr/ev_epoll_linux_test.c

@@ -139,23 +139,25 @@ static void increment(grpc_exec_ctx *exec_ctx, void *arg, grpc_error *error) {
  * polling_island_merge()[ev_epoll_linux.c], where the parent relationship was
  * inverted.
  */
+
+#define NUM_FDS 2
+#define NUM_POLLSETS 2
+#define NUM_CLOSURES 4
+
 static void test_pollset_queue_merge_items() {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  const int num_fds = 2;
-  const int num_pollsets = 2;
-  const int num_closures = 4;
-  test_fd tfds[2 /* num_fds */];
-  int fds[2 /* num_fds */];
-  test_pollset pollsets[2 /* num_pollsets */];
-  grpc_closure closures[4 /* num_closures */];
+  test_fd tfds[NUM_FDS];
+  int fds[NUM_FDS];
+  test_pollset pollsets[NUM_POLLSETS];
+  grpc_closure closures[NUM_CLOSURES];
   int i;
   int result = 0;
 
-  test_fd_init(tfds, fds, num_fds);
-  test_pollset_init(pollsets, num_pollsets);
+  test_fd_init(tfds, fds, NUM_FDS);
+  test_pollset_init(pollsets, NUM_POLLSETS);
 
   /* Two distinct polling islands, each with their own FD and pollset. */
-  for (i = 0; i < num_fds; i++) {
+  for (i = 0; i < NUM_FDS; i++) {
     grpc_pollset_add_fd(&exec_ctx, pollsets[i].pollset, tfds[i].fd);
     grpc_exec_ctx_flush(&exec_ctx);
   }
@@ -173,7 +175,7 @@ static void test_pollset_queue_merge_items() {
   grpc_closure_init(
       closures + 3, increment, &result,
       grpc_workqueue_scheduler(grpc_fd_get_polling_island(tfds[1].fd)));
-  for (i = 0; i < num_closures; ++i) {
+  for (i = 0; i < NUM_CLOSURES; ++i) {
     grpc_closure_sched(&exec_ctx, closures + i, GRPC_ERROR_NONE);
   }
 
@@ -186,7 +188,7 @@ static void test_pollset_queue_merge_items() {
    * the merged polling island.
    */
   grpc_pollset_worker *worker = NULL;
-  for (i = 0; i < num_closures; ++i) {
+  for (i = 0; i < NUM_CLOSURES; ++i) {
     const gpr_timespec deadline = gpr_time_add(
         gpr_now(GPR_CLOCK_MONOTONIC), gpr_time_from_seconds(2, GPR_TIMESPAN));
     gpr_mu_lock(pollsets[1].mu);
@@ -196,13 +198,17 @@ static void test_pollset_queue_merge_items() {
                           gpr_now(GPR_CLOCK_MONOTONIC), deadline));
     gpr_mu_unlock(pollsets[1].mu);
   }
-  GPR_ASSERT(result == num_closures);
+  GPR_ASSERT(result == NUM_CLOSURES);
 
-  test_fd_cleanup(&exec_ctx, tfds, num_fds);
-  test_pollset_cleanup(&exec_ctx, pollsets, num_pollsets);
+  test_fd_cleanup(&exec_ctx, tfds, NUM_FDS);
+  test_pollset_cleanup(&exec_ctx, pollsets, NUM_POLLSETS);
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
+#undef NUM_FDS
+#undef NUM_POLLSETS
+#undef NUM_CLOSURES
+
 /*
  * Cases to test:
  *  case 1) Polling islands of both fd and pollset are NULL
@@ -213,18 +219,20 @@ static void test_pollset_queue_merge_items() {
  *     case 4.2) Polling islands of fd and pollset are NOT-equal (This results
  *     in a merge)
  * */
+
+#define NUM_FDS 8
+#define NUM_POLLSETS 4
+
 static void test_add_fd_to_pollset() {
   grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  const int num_fds = 8;
-  const int num_pollsets = 4;
-  test_fd tfds[8 /* num_fds */];
-  int fds[8 /* num_fds */];
-  test_pollset pollsets[4 /* num_pollsets */];
+  test_fd tfds[NUM_FDS];
+  int fds[NUM_FDS];
+  test_pollset pollsets[NUM_POLLSETS];
   void *expected_pi = NULL;
   int i;
 
-  test_fd_init(tfds, fds, num_fds);
-  test_pollset_init(pollsets, num_pollsets);
+  test_fd_init(tfds, fds, NUM_FDS);
+  test_pollset_init(pollsets, NUM_POLLSETS);
 
   /*Step 1.
    * Create three polling islands (This will exercise test case 1 and 2) with
@@ -285,22 +293,25 @@ static void test_add_fd_to_pollset() {
 
   /* Compare Fd:0's polling island with that of all other Fds */
   expected_pi = grpc_fd_get_polling_island(tfds[0].fd);
-  for (i = 1; i < num_fds; i++) {
+  for (i = 1; i < NUM_FDS; i++) {
     GPR_ASSERT(grpc_are_polling_islands_equal(
         expected_pi, grpc_fd_get_polling_island(tfds[i].fd)));
   }
 
   /* Compare Fd:0's polling island with that of all other pollsets */
-  for (i = 0; i < num_pollsets; i++) {
+  for (i = 0; i < NUM_POLLSETS; i++) {
     GPR_ASSERT(grpc_are_polling_islands_equal(
         expected_pi, grpc_pollset_get_polling_island(pollsets[i].pollset)));
   }
 
-  test_fd_cleanup(&exec_ctx, tfds, num_fds);
-  test_pollset_cleanup(&exec_ctx, pollsets, num_pollsets);
+  test_fd_cleanup(&exec_ctx, tfds, NUM_FDS);
+  test_pollset_cleanup(&exec_ctx, pollsets, NUM_POLLSETS);
   grpc_exec_ctx_finish(&exec_ctx);
 }
 
+#undef NUM_FDS
+#undef NUM_POLLSETS
+
 int main(int argc, char **argv) {
   const char *poll_strategy = NULL;
   grpc_test_init(argc, argv);