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-rw-r--r--src/core/ext/transport/chttp2/transport/flow_control.cc5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/core/ext/transport/chttp2/transport/flow_control.cc b/src/core/ext/transport/chttp2/transport/flow_control.cc
index 5f3dd98461..53932bcb7f 100644
--- a/src/core/ext/transport/chttp2/transport/flow_control.cc
+++ b/src/core/ext/transport/chttp2/transport/flow_control.cc
@@ -40,6 +40,7 @@ namespace chttp2 {
namespace {
static constexpr const int kTracePadding = 30;
+static constexpr const uint32_t kMaxWindowUpdateSize = (1u << 31) - 1;
static char* fmt_int64_diff_str(int64_t old_val, int64_t new_val) {
char* str;
@@ -193,7 +194,7 @@ uint32_t TransportFlowControl::MaybeSendUpdate(bool writing_anyway) {
if ((writing_anyway || announced_window_ <= target_announced_window / 2) &&
announced_window_ != target_announced_window) {
const uint32_t announce = static_cast<uint32_t> GPR_CLAMP(
- target_announced_window - announced_window_, 0, UINT32_MAX);
+ target_announced_window - announced_window_, 0, kMaxWindowUpdateSize);
announced_window_ += announce;
return announce;
}
@@ -267,7 +268,7 @@ uint32_t StreamFlowControl::MaybeSendUpdate() {
FlowControlTrace trace("s updt sent", tfc_, this);
if (local_window_delta_ > announced_window_delta_) {
uint32_t announce = static_cast<uint32_t> GPR_CLAMP(
- local_window_delta_ - announced_window_delta_, 0, UINT32_MAX);
+ local_window_delta_ - announced_window_delta_, 0, kMaxWindowUpdateSize);
UpdateAnnouncedWindowDelta(tfc_, announce);
return announce;
}