Refactoring std::chrono out.

include/grpc++/client_context.h

@@ -34,15 +34,13 @@
 #ifndef GRPCXX_CLIENT_CONTEXT_H
 #define GRPCXX_CLIENT_CONTEXT_H
 
-#include <chrono>
 #include <map>
 #include <string>
 
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc++/config.h>
-
-using std::chrono::system_clock;
+#include <grpc++/time.h>
 
 struct grpc_call;
 struct grpc_completion_queue;
@@ -87,8 +85,19 @@ class ClientContext {
     return trailing_metadata_;
   }
 
-  void set_absolute_deadline(const system_clock::time_point& deadline);
-  system_clock::time_point absolute_deadline();
+  template <typename T>
+  void set_deadline(const T& deadline) {
+    TimePoint<T> deadline_tp(deadline);
+    deadline_ = deadline_tp.raw_time();
+  }
+
+#ifndef GRPC_CXX0X_NO_CHRONO
+  std::chrono::system_clock::time_point deadline() {
+    return Timespec2Timepoint(deadline_);
+  }
+#endif  // !GRPC_CXX0X_NO_CHRONO
+
+  gpr_timespec raw_deadline() { return deadline_; }
 
   void set_authority(const grpc::string& authority) { authority_ = authority; }
 
@@ -125,14 +134,12 @@ class ClientContext {
   grpc_completion_queue* cq() { return cq_; }
   void set_cq(grpc_completion_queue* cq) { cq_ = cq; }
 
-  gpr_timespec RawDeadline() { return absolute_deadline_; }
-
   grpc::string authority() { return authority_; }
 
   bool initial_metadata_received_;
   grpc_call* call_;
   grpc_completion_queue* cq_;
-  gpr_timespec absolute_deadline_;
+  gpr_timespec deadline_;
   grpc::string authority_;
   std::multimap<grpc::string, grpc::string> send_initial_metadata_;
   std::multimap<grpc::string, grpc::string> recv_initial_metadata_;

include/grpc++/completion_queue.h

@@ -34,9 +34,9 @@
 #ifndef GRPCXX_COMPLETION_QUEUE_H
 #define GRPCXX_COMPLETION_QUEUE_H
 
-#include <chrono>
-#include <grpc++/impl/client_unary_call.h>
 #include <grpc/support/time.h>
+#include <grpc++/impl/client_unary_call.h>
+#include <grpc++/time.h>
 
 struct grpc_completion_queue;
 
@@ -82,10 +82,13 @@ class CompletionQueue {
 
   // Nonblocking (until deadline) read from queue.
   // Cannot rely on result of tag or ok if return is TIMEOUT
-  NextStatus AsyncNext(void** tag, bool* ok,
-                       std::chrono::system_clock::time_point deadline);
+  template<typename T>
+  NextStatus AsyncNext(void** tag, bool* ok, const T& deadline) {
+    TimePoint<T> deadline_tp(deadline);
+    return AsyncNextInternal(tag, ok, deadline_tp.raw_time());
+  }
 
-  // Blocking (until deadline) read from queue.
+  // Blocking read from queue.
   // Returns false if the queue is ready for destruction, true if event
 
   bool Next(void** tag, bool* ok) {

include/grpc++/credentials.h

@@ -34,7 +34,6 @@
 #ifndef GRPCXX_CREDENTIALS_H
 #define GRPCXX_CREDENTIALS_H
 
-#include <chrono>
 #include <memory>
 
 #include <grpc++/config.h>
@@ -103,7 +102,7 @@ std::unique_ptr<Credentials> ComputeEngineCredentials();
 // grpc_max_auth_token_lifetime or will be cropped to this value.
 std::unique_ptr<Credentials> ServiceAccountCredentials(
     const grpc::string& json_key, const grpc::string& scope,
-    std::chrono::seconds token_lifetime);
+    long token_lifetime);
 
 // Builds JWT credentials.
 // json_key is the JSON key string containing the client's private key.
@@ -111,7 +110,7 @@ std::unique_ptr<Credentials> ServiceAccountCredentials(
 // this credentials.  It should not exceed grpc_max_auth_token_lifetime or
 // will be cropped to this value.
 std::unique_ptr<Credentials> JWTCredentials(
-    const grpc::string& json_key, std::chrono::seconds token_lifetime);
+    const grpc::string& json_key, long token_lifetime);
 
 // Builds refresh token credentials.
 // json_refresh_token is the JSON string containing the refresh token along

include/grpc++/server_context.h

@@ -34,10 +34,11 @@
 #ifndef GRPCXX_SERVER_CONTEXT_H
 #define GRPCXX_SERVER_CONTEXT_H
 
-#include <chrono>
 #include <map>
 
+#include <grpc/support/time.h>
 #include <grpc++/config.h>
+#include <grpc++/time.h>
 
 struct gpr_timespec;
 struct grpc_metadata;
@@ -71,9 +72,13 @@ class ServerContext {
   ServerContext();  // for async calls
   ~ServerContext();
 
-  std::chrono::system_clock::time_point absolute_deadline() {
-    return deadline_;
+#ifndef GRPC_CXX0X_NO_CHRONO
+  std::chrono::system_clock::time_point deadline() {
+    return Timespec2Timepoint(deadline_);
   }
+#endif  // !GRPC_CXX0X_NO_CHRONO
+
+  gpr_timespec raw_deadline() { return deadline_; }
 
   void AddInitialMetadata(const grpc::string& key, const grpc::string& value);
   void AddTrailingMetadata(const grpc::string& key, const grpc::string& value);
@@ -110,7 +115,7 @@ class ServerContext {
 
   CompletionOp* completion_op_;
 
-  std::chrono::system_clock::time_point deadline_;
+  gpr_timespec deadline_;
   grpc_call* call_;
   CompletionQueue* cq_;
   bool sent_initial_metadata_;

include/grpc++/time.h

@@ -34,6 +34,23 @@
 #ifndef GRPC_INTERNAL_CPP_UTIL_TIME_H
 #define GRPC_INTERNAL_CPP_UTIL_TIME_H
 
+#include <grpc++/config.h>
+
+namespace grpc {
+
+template <typename T>
+class TimePoint {
+ public:
+  TimePoint(const T& time) : time_(time) { }
+  gpr_timespec raw_time() const { return time_; }
+ private:
+  gpr_timespec time_;
+};
+
+}  // namespace grpc
+
+#ifndef GRPC_CXX0X_NO_CHRONO
+
 #include <chrono>
 
 #include <grpc/support/time.h>
@@ -46,6 +63,19 @@ void Timepoint2Timespec(const std::chrono::system_clock::time_point& from,
 
 std::chrono::system_clock::time_point Timespec2Timepoint(gpr_timespec t);
 
+template <>
+class TimePoint<std::chrono::system_clock::time_point> {
+ public:
+  TimePoint(const std::chrono::system_clock::time_point& time) {
+	Timepoint2Timespec(time, &time_);
+  }
+  gpr_timespec raw_time() const { return time_; }
+ private:
+  gpr_timespec time_;
+};
+
 }  // namespace grpc
 
+#endif  // !GRPC_CXX0X_NO_CHRONO
+
 #endif  // GRPC_INTERNAL_CPP_UTIL_TIME_H

src/cpp/client/channel.cc

@@ -33,7 +33,6 @@
 
 #include "src/cpp/client/channel.h"
 
-#include <chrono>
 #include <memory>
 
 #include <grpc/grpc.h>
@@ -64,7 +63,7 @@ Call Channel::CreateCall(const RpcMethod& method, ClientContext* context,
                                          context->authority().empty()
                                              ? target_.c_str()
                                              : context->authority().c_str(),
-                                         context->RawDeadline());
+                                         context->raw_deadline());
   context->set_call(c_call);
   return Call(c_call, this, cq);
 }

src/cpp/client/client_context.cc

@@ -34,9 +34,7 @@
 #include <grpc++/client_context.h>
 
 #include <grpc/grpc.h>
-#include "src/cpp/util/time.h"
-
-using std::chrono::system_clock;
+#include <grpc++/time.h>
 
 namespace grpc {
 
@@ -44,7 +42,7 @@ ClientContext::ClientContext()
     : initial_metadata_received_(false),
       call_(nullptr),
       cq_(nullptr),
-      absolute_deadline_(gpr_inf_future) {}
+      deadline_(gpr_inf_future) {}
 
 ClientContext::~ClientContext() {
   if (call_) {
@@ -64,15 +62,6 @@ ClientContext::~ClientContext() {
   }
 }
 
-void ClientContext::set_absolute_deadline(
-    const system_clock::time_point& deadline) {
-  Timepoint2Timespec(deadline, &absolute_deadline_);
-}
-
-system_clock::time_point ClientContext::absolute_deadline() {
-  return Timespec2Timepoint(absolute_deadline_);
-}
-
 void ClientContext::AddMetadata(const grpc::string& meta_key,
                                 const grpc::string& meta_value) {
   send_initial_metadata_.insert(std::make_pair(meta_key, meta_value));

src/cpp/client/secure_credentials.cc

@@ -96,27 +96,27 @@ std::unique_ptr<Credentials> ComputeEngineCredentials() {
 // Builds service account credentials.
 std::unique_ptr<Credentials> ServiceAccountCredentials(
     const grpc::string& json_key, const grpc::string& scope,
-    std::chrono::seconds token_lifetime) {
-  if (token_lifetime.count() <= 0) {
+    long token_lifetime) {
+  if (token_lifetime <= 0) {
     gpr_log(GPR_ERROR,
             "Trying to create ServiceAccountCredentials "
             "with non-positive lifetime");
     return WrapCredentials(nullptr);
   }
-  gpr_timespec lifetime = gpr_time_from_seconds(token_lifetime.count());
+  gpr_timespec lifetime = gpr_time_from_seconds(token_lifetime);
   return WrapCredentials(grpc_service_account_credentials_create(
       json_key.c_str(), scope.c_str(), lifetime));
 }
 
 // Builds JWT credentials.
 std::unique_ptr<Credentials> JWTCredentials(
-    const grpc::string& json_key, std::chrono::seconds token_lifetime) {
-  if (token_lifetime.count() <= 0) {
+    const grpc::string& json_key, long token_lifetime) {
+  if (token_lifetime <= 0) {
     gpr_log(GPR_ERROR,
             "Trying to create JWTCredentials with non-positive lifetime");
     return WrapCredentials(nullptr);
   }
-  gpr_timespec lifetime = gpr_time_from_seconds(token_lifetime.count());
+  gpr_timespec lifetime = gpr_time_from_seconds(token_lifetime);
   return WrapCredentials(
       grpc_jwt_credentials_create(json_key.c_str(), lifetime));
 }

src/cpp/common/completion_queue.cc

@@ -36,7 +36,7 @@
 
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
-#include "src/cpp/util/time.h"
+#include <grpc++/time.h>
 
 namespace grpc {
 
@@ -77,13 +77,6 @@ CompletionQueue::NextStatus CompletionQueue::AsyncNextInternal(
   }
 }
 
-CompletionQueue::NextStatus CompletionQueue::AsyncNext(
-    void** tag, bool* ok, std::chrono::system_clock::time_point deadline) {
-  gpr_timespec gpr_deadline;
-  Timepoint2Timespec(deadline, &gpr_deadline);
-  return AsyncNextInternal(tag, ok, gpr_deadline);
-}
-
 bool CompletionQueue::Pluck(CompletionQueueTag* tag) {
   std::unique_ptr<grpc_event, EventDeleter> ev;
 

src/cpp/server/server.cc

@@ -45,9 +45,9 @@
 #include <grpc++/server_context.h>
 #include <grpc++/server_credentials.h>
 #include <grpc++/thread_pool_interface.h>
+#include <grpc++/time.h>
 
 #include "src/cpp/proto/proto_utils.h"
-#include "src/cpp/util/time.h"
 
 namespace grpc {
 
@@ -348,7 +348,7 @@ class Server::AsyncRequest GRPC_FINAL : public CompletionQueueTag {
     ServerContext* ctx = ctx_ ? ctx_ : generic_ctx_;
     GPR_ASSERT(ctx);
     if (*status) {
-      ctx->deadline_ = Timespec2Timepoint(call_details_.deadline);
+      ctx->deadline_ = call_details_.deadline;
       for (size_t i = 0; i < array_.count; i++) {
         ctx->client_metadata_.insert(std::make_pair(
             grpc::string(array_.metadata[i].key),

src/cpp/server/server_context.cc

@@ -33,11 +33,11 @@
 
 #include <grpc++/server_context.h>
 
-#include <grpc++/impl/call.h>
-#include <grpc++/impl/sync.h>
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
-#include "src/cpp/util/time.h"
+#include <grpc++/impl/call.h>
+#include <grpc++/impl/sync.h>
+#include <grpc++/time.h>
 
 namespace grpc {
 
@@ -99,7 +99,7 @@ ServerContext::ServerContext()
 ServerContext::ServerContext(gpr_timespec deadline, grpc_metadata* metadata,
                              size_t metadata_count)
     : completion_op_(nullptr),
-      deadline_(Timespec2Timepoint(deadline)),
+      deadline_(deadline),
       call_(nullptr),
       cq_(nullptr),
       sent_initial_metadata_(false) {

src/cpp/util/time.cc

@@ -31,9 +31,12 @@
  *
  */
 
-#include "src/cpp/util/time.h"
+#include <grpc++/config.h>
+
+#ifndef GRPC_CXX0X_NO_CHRONO
 
 #include <grpc/support/time.h>
+#include <grpc++/time.h>
 
 using std::chrono::duration_cast;
 using std::chrono::nanoseconds;
@@ -68,3 +71,5 @@ system_clock::time_point Timespec2Timepoint(gpr_timespec t) {
 }
 
 }  // namespace grpc
+
+#endif  // !GRPC_CXX0X_NO_CHRONO

test/cpp/client/credentials_test.cc

@@ -47,7 +47,7 @@ class CredentialsTest : public ::testing::Test {
 
 TEST_F(CredentialsTest, InvalidServiceAccountCreds) {
   std::unique_ptr<Credentials> bad1 =
-      ServiceAccountCredentials("", "", std::chrono::seconds(1));
+      ServiceAccountCredentials("", "", 1);
   EXPECT_EQ(nullptr, bad1.get());
 }
 

test/cpp/end2end/async_end2end_test.cc

@@ -35,9 +35,9 @@
 #include <memory>
 
 #include "test/core/util/test_config.h"
+#include "test/core/util/port.h"
 #include "test/cpp/util/echo_duplicate.pb.h"
 #include "test/cpp/util/echo.pb.h"
-#include "src/cpp/util/time.h"
 #include <grpc++/async_unary_call.h>
 #include <grpc++/channel_arguments.h>
 #include <grpc++/channel_interface.h>
@@ -50,7 +50,7 @@
 #include <grpc++/server_credentials.h>
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
-#include "test/core/util/port.h"
+#include <grpc++/time.h>
 #include <gtest/gtest.h>
 
 #include <grpc/grpc.h>

test/cpp/end2end/end2end_test.cc

@@ -34,10 +34,10 @@
 #include <chrono>
 #include <thread>
 
+#include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 #include "test/cpp/util/echo_duplicate.pb.h"
 #include "test/cpp/util/echo.pb.h"
-#include "src/cpp/util/time.h"
 #include "src/cpp/server/thread_pool.h"
 #include <grpc++/channel_arguments.h>
 #include <grpc++/channel_interface.h>
@@ -50,7 +50,7 @@
 #include <grpc++/server_credentials.h>
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
-#include "test/core/util/port.h"
+#include <grpc++/time.h>
 #include <gtest/gtest.h>
 
 #include <grpc/grpc.h>
@@ -72,8 +72,8 @@ void MaybeEchoDeadline(ServerContext* context, const EchoRequest* request,
                        EchoResponse* response) {
   if (request->has_param() && request->param().echo_deadline()) {
     gpr_timespec deadline = gpr_inf_future;
-    if (context->absolute_deadline() != system_clock::time_point::max()) {
-      Timepoint2Timespec(context->absolute_deadline(), &deadline);
+    if (context->deadline() != system_clock::time_point::max()) {
+      Timepoint2Timespec(context->deadline(), &deadline);
     }
     response->mutable_param()->set_request_deadline(deadline.tv_sec);
   }
@@ -245,7 +245,7 @@ TEST_F(End2endTest, RpcDeadlineExpires) {
   ClientContext context;
   std::chrono::system_clock::time_point deadline =
       std::chrono::system_clock::now() + std::chrono::microseconds(10);
-  context.set_absolute_deadline(deadline);
+  context.set_deadline(deadline);
   Status s = stub_->Echo(&context, request, &response);
   EXPECT_EQ(StatusCode::DEADLINE_EXCEEDED, s.code());
 }
@@ -260,7 +260,7 @@ TEST_F(End2endTest, RpcLongDeadline) {
   ClientContext context;
   std::chrono::system_clock::time_point deadline =
       std::chrono::system_clock::now() + std::chrono::hours(1);
-  context.set_absolute_deadline(deadline);
+  context.set_deadline(deadline);
   Status s = stub_->Echo(&context, request, &response);
   EXPECT_EQ(response.message(), request.message());
   EXPECT_TRUE(s.IsOk());
@@ -277,7 +277,7 @@ TEST_F(End2endTest, EchoDeadline) {
   ClientContext context;
   std::chrono::system_clock::time_point deadline =
       std::chrono::system_clock::now() + std::chrono::seconds(100);
-  context.set_absolute_deadline(deadline);
+  context.set_deadline(deadline);
   Status s = stub_->Echo(&context, request, &response);
   EXPECT_EQ(response.message(), request.message());
   EXPECT_TRUE(s.IsOk());
@@ -428,7 +428,7 @@ TEST_F(End2endTest, DiffPackageServices) {
 // rpc and stream should fail on bad credentials.
 TEST_F(End2endTest, BadCredentials) {
   std::unique_ptr<Credentials> bad_creds =
-      ServiceAccountCredentials("", "", std::chrono::seconds(1));
+      ServiceAccountCredentials("", "", 1);
   EXPECT_EQ(nullptr, bad_creds.get());
   std::shared_ptr<ChannelInterface> channel =
       CreateChannel(server_address_.str(), bad_creds, ChannelArguments());

test/cpp/end2end/generic_end2end_test.cc

@@ -35,7 +35,6 @@
 #include <memory>
 
 #include "src/cpp/proto/proto_utils.h"
-#include "src/cpp/util/time.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 #include "test/cpp/util/echo.pb.h"
@@ -55,6 +54,7 @@
 #include <grpc++/slice.h>
 #include <grpc++/status.h>
 #include <grpc++/stream.h>
+#include <grpc++/time.h>
 #include <gtest/gtest.h>
 
 #include <grpc/grpc.h>

test/cpp/interop/client.cc

@@ -138,8 +138,7 @@ std::shared_ptr<ChannelInterface> CreateChannelForTestCase(
     std::unique_ptr<Credentials> creds;
     GPR_ASSERT(FLAGS_enable_ssl);
     grpc::string json_key = GetServiceAccountJsonKey();
-    creds = ServiceAccountCredentials(json_key, FLAGS_oauth_scope,
-                                      std::chrono::hours(1));
+    creds = ServiceAccountCredentials(json_key, FLAGS_oauth_scope, 3600);
     return CreateTestChannel(host_port, FLAGS_server_host_override,
                              FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
   } else if (test_case == "compute_engine_creds") {
@@ -152,7 +151,7 @@ std::shared_ptr<ChannelInterface> CreateChannelForTestCase(
     std::unique_ptr<Credentials> creds;
     GPR_ASSERT(FLAGS_enable_ssl);
     grpc::string json_key = GetServiceAccountJsonKey();
-    creds = JWTCredentials(json_key, std::chrono::hours(1));
+    creds = JWTCredentials(json_key, 3600);
     return CreateTestChannel(host_port, FLAGS_server_host_override,
                              FLAGS_enable_ssl, FLAGS_use_prod_roots, creds);
   } else {

test/cpp/util/time_test.cc

@@ -31,11 +31,10 @@
  *
  */
 
-#include "src/cpp/util/time.h"
-
 #include <chrono>
 
 #include <grpc/support/time.h>
+#include <grpc++/time.h>
 #include <gtest/gtest.h>
 
 using std::chrono::duration_cast;