1 files changed, 0 insertions, 72 deletions
diff --git a/src/core/lib/support/backoff.cc b/src/core/lib/support/backoff.cc
deleted file mode 100644
index 6dc0df473b..0000000000
--- a/src/core/lib/support/backoff.cc
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- *
- * Copyright 2016 gRPC authors.
- *
- * 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 "src/core/lib/support/backoff.h"
-
-#include <grpc/support/useful.h>
-
-void gpr_backoff_init(gpr_backoff *backoff, int64_t initial_connect_timeout,
-                      double multiplier, double jitter,
-                      int64_t min_timeout_millis, int64_t max_timeout_millis) {
-  backoff->initial_connect_timeout = initial_connect_timeout;
-  backoff->multiplier = multiplier;
-  backoff->jitter = jitter;
-  backoff->min_timeout_millis = min_timeout_millis;
-  backoff->max_timeout_millis = max_timeout_millis;
-  backoff->rng_state = (uint32_t)gpr_now(GPR_CLOCK_REALTIME).tv_nsec;
-}
-
-gpr_timespec gpr_backoff_begin(gpr_backoff *backoff, gpr_timespec now) {
-  backoff->current_timeout_millis = backoff->initial_connect_timeout;
-  const int64_t first_timeout =
-      GPR_MAX(backoff->current_timeout_millis, backoff->min_timeout_millis);
-  return gpr_time_add(now, gpr_time_from_millis(first_timeout, GPR_TIMESPAN));
-}
-
-/* Generate a random number between 0 and 1. */
-static double generate_uniform_random_number(uint32_t *rng_state) {
-  *rng_state = (1103515245 * *rng_state + 12345) % ((uint32_t)1 << 31);
-  return *rng_state / (double)((uint32_t)1 << 31);
-}
-
-gpr_timespec gpr_backoff_step(gpr_backoff *backoff, gpr_timespec now) {
-  const double new_timeout_millis =
-      backoff->multiplier * (double)backoff->current_timeout_millis;
-  backoff->current_timeout_millis =
-      GPR_MIN((int64_t)new_timeout_millis, backoff->max_timeout_millis);
-
-  const double jitter_range_width = backoff->jitter * new_timeout_millis;
-  const double jitter =
-      (2 * generate_uniform_random_number(&backoff->rng_state) - 1) *
-      jitter_range_width;
-
-  backoff->current_timeout_millis =
-      (int64_t)((double)(backoff->current_timeout_millis) + jitter);
-
-  const gpr_timespec current_deadline = gpr_time_add(
-      now, gpr_time_from_millis(backoff->current_timeout_millis, GPR_TIMESPAN));
-
-  const gpr_timespec min_deadline = gpr_time_add(
-      now, gpr_time_from_millis(backoff->min_timeout_millis, GPR_TIMESPAN));
-
-  return gpr_time_max(current_deadline, min_deadline);
-}
-
-void gpr_backoff_reset(gpr_backoff *backoff) {
-  backoff->current_timeout_millis = backoff->initial_connect_timeout;
-}