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-rw-r--r--src/core/ext/README.md5
-rw-r--r--src/core/ext/client_channel/channel_connectivity.c5
-rw-r--r--src/core/ext/client_channel/subchannel.c6
-rw-r--r--src/core/ext/lb_policy/grpclb/grpclb.c7
-rw-r--r--src/core/ext/resolver/README.md4
-rw-r--r--src/core/ext/resolver/dns/native/dns_resolver.c6
-rw-r--r--src/core/ext/transport/README.md1
-rw-r--r--src/core/ext/transport/chttp2/README.md1
-rw-r--r--src/core/ext/transport/chttp2/transport/chttp2_transport.c10
-rw-r--r--src/core/lib/README.md6
-rw-r--r--src/core/lib/channel/README.md4
-rw-r--r--src/core/lib/channel/deadline_filter.c7
-rw-r--r--src/core/lib/channel/deadline_filter.h1
-rw-r--r--src/core/lib/channel/handshaker.c5
-rw-r--r--src/core/lib/iomgr/README.md6
-rw-r--r--src/core/lib/iomgr/tcp_client_posix.c4
-rw-r--r--src/core/lib/iomgr/tcp_client_uv.c5
-rw-r--r--src/core/lib/iomgr/tcp_client_windows.c4
-rw-r--r--src/core/lib/iomgr/timer.h16
-rw-r--r--src/core/lib/iomgr/timer_generic.c15
-rw-r--r--src/core/lib/iomgr/timer_generic.h2
-rw-r--r--src/core/lib/iomgr/timer_uv.c13
-rw-r--r--src/core/lib/iomgr/timer_uv.h2
-rw-r--r--src/core/lib/surface/README.md4
-rw-r--r--src/core/lib/surface/alarm.c5
-rw-r--r--src/core/lib/transport/README.md7
-rw-r--r--src/core/lib/tsi/README.md2
-rw-r--r--src/node/interop/interop_client.js3
-rwxr-xr-xsrc/php/tests/interop/interop_client.php11
-rw-r--r--src/python/grpcio/grpc/_channel.py12
-rw-r--r--src/python/grpcio_tests/tests/reflection/_reflection_servicer_test.py16
-rw-r--r--src/python/grpcio_tests/tests/tests.json1
-rw-r--r--src/python/grpcio_tests/tests/unit/_compression_test.py2
-rw-r--r--src/python/grpcio_tests/tests/unit/_empty_message_test.py4
-rw-r--r--src/python/grpcio_tests/tests/unit/_exit_scenarios.py2
-rw-r--r--src/python/grpcio_tests/tests/unit/_invocation_defects_test.py247
-rw-r--r--src/python/grpcio_tests/tests/unit/_metadata_test.py4
37 files changed, 400 insertions, 55 deletions
diff --git a/src/core/ext/README.md b/src/core/ext/README.md
new file mode 100644
index 0000000000..0812b20823
--- /dev/null
+++ b/src/core/ext/README.md
@@ -0,0 +1,5 @@
+Optional plugins for gRPC Core: Modules in this directory extend gRPC Core in
+useful ways. All optional code belongs here.
+
+NOTE: The movement of code between lib and ext is an ongoing effort, so this
+directory currently contains too much of the core library.
diff --git a/src/core/ext/client_channel/channel_connectivity.c b/src/core/ext/client_channel/channel_connectivity.c
index b10f444b63..dd70bc2c6c 100644
--- a/src/core/ext/client_channel/channel_connectivity.c
+++ b/src/core/ext/client_channel/channel_connectivity.c
@@ -76,6 +76,7 @@ typedef struct {
gpr_mu mu;
callback_phase phase;
grpc_closure on_complete;
+ grpc_closure on_timeout;
grpc_timer alarm;
grpc_connectivity_state state;
grpc_completion_queue *cq;
@@ -200,6 +201,8 @@ void grpc_channel_watch_connectivity_state(
gpr_mu_init(&w->mu);
grpc_closure_init(&w->on_complete, watch_complete, w,
grpc_schedule_on_exec_ctx);
+ grpc_closure_init(&w->on_timeout, timeout_complete, w,
+ grpc_schedule_on_exec_ctx);
w->phase = WAITING;
w->state = last_observed_state;
w->cq = cq;
@@ -208,7 +211,7 @@ void grpc_channel_watch_connectivity_state(
grpc_timer_init(&exec_ctx, &w->alarm,
gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC),
- timeout_complete, w, gpr_now(GPR_CLOCK_MONOTONIC));
+ &w->on_timeout, gpr_now(GPR_CLOCK_MONOTONIC));
if (client_channel_elem->filter == &grpc_client_channel_filter) {
GRPC_CHANNEL_INTERNAL_REF(channel, "watch_channel_connectivity");
diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/client_channel/subchannel.c
index f8f48f2894..54764ea7f8 100644
--- a/src/core/ext/client_channel/subchannel.c
+++ b/src/core/ext/client_channel/subchannel.c
@@ -109,6 +109,9 @@ struct grpc_subchannel {
/** callback for connection finishing */
grpc_closure connected;
+ /** callback for our alarm */
+ grpc_closure on_alarm;
+
/** pollset_set tracking who's interested in a connection
being setup */
grpc_pollset_set *pollset_set;
@@ -483,7 +486,8 @@ static void maybe_start_connecting_locked(grpc_exec_ctx *exec_ctx,
gpr_log(GPR_INFO, "Retry in %" PRId64 ".%09d seconds",
time_til_next.tv_sec, time_til_next.tv_nsec);
}
- grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, on_alarm, c, now);
+ grpc_closure_init(&c->on_alarm, on_alarm, c, grpc_schedule_on_exec_ctx);
+ grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, &c->on_alarm, now);
}
}
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/lb_policy/grpclb/grpclb.c
index 390c6ff817..3cdd96e7ae 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/lb_policy/grpclb/grpclb.c
@@ -327,6 +327,9 @@ typedef struct glb_lb_policy {
/* A response from the LB server has been received. Process it */
grpc_closure lb_on_response_received;
+ /* LB call retry timer callback. */
+ grpc_closure lb_on_call_retry;
+
grpc_call *lb_call; /* streaming call to the LB server, */
grpc_metadata_array lb_initial_metadata_recv; /* initial MD from LB server */
@@ -1368,8 +1371,10 @@ static void lb_on_server_status_received(grpc_exec_ctx *exec_ctx, void *arg,
}
}
GRPC_LB_POLICY_WEAK_REF(&glb_policy->base, "grpclb_retry_timer");
+ grpc_closure_init(&glb_policy->lb_on_call_retry, lb_call_on_retry_timer,
+ glb_policy, grpc_schedule_on_exec_ctx);
grpc_timer_init(exec_ctx, &glb_policy->lb_call_retry_timer, next_try,
- lb_call_on_retry_timer, glb_policy, now);
+ &glb_policy->lb_on_call_retry, now);
}
gpr_mu_unlock(&glb_policy->mu);
GRPC_LB_POLICY_WEAK_UNREF(exec_ctx, &glb_policy->base,
diff --git a/src/core/ext/resolver/README.md b/src/core/ext/resolver/README.md
new file mode 100644
index 0000000000..b0e234e96a
--- /dev/null
+++ b/src/core/ext/resolver/README.md
@@ -0,0 +1,4 @@
+# Resolver
+
+Implementations of various name resolution schemes.
+See the [naming spec](/doc/naming.md).
diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/resolver/dns/native/dns_resolver.c
index 124b16bbc3..bb2b012507 100644
--- a/src/core/ext/resolver/dns/native/dns_resolver.c
+++ b/src/core/ext/resolver/dns/native/dns_resolver.c
@@ -81,6 +81,7 @@ typedef struct {
/** retry timer */
bool have_retry_timer;
grpc_timer retry_timer;
+ grpc_closure on_retry;
/** retry backoff state */
gpr_backoff backoff_state;
@@ -199,8 +200,9 @@ static void dns_on_resolved(grpc_exec_ctx *exec_ctx, void *arg,
} else {
gpr_log(GPR_DEBUG, "retrying immediately");
}
- grpc_timer_init(exec_ctx, &r->retry_timer, next_try, dns_on_retry_timer, r,
- now);
+ grpc_closure_init(&r->on_retry, dns_on_retry_timer, r,
+ grpc_schedule_on_exec_ctx);
+ grpc_timer_init(exec_ctx, &r->retry_timer, next_try, &r->on_retry, now);
}
if (r->resolved_result != NULL) {
grpc_channel_args_destroy(exec_ctx, r->resolved_result);
diff --git a/src/core/ext/transport/README.md b/src/core/ext/transport/README.md
new file mode 100644
index 0000000000..2290568784
--- /dev/null
+++ b/src/core/ext/transport/README.md
@@ -0,0 +1 @@
+Transports for gRPC
diff --git a/src/core/ext/transport/chttp2/README.md b/src/core/ext/transport/chttp2/README.md
new file mode 100644
index 0000000000..8880a47460
--- /dev/null
+++ b/src/core/ext/transport/chttp2/README.md
@@ -0,0 +1 @@
+CHTTP2 - gRPC's implementation of a HTTP2 based transport
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index 0f762dbceb..1bf6dd4c28 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -47,6 +47,7 @@
#include "src/core/ext/transport/chttp2/transport/http2_errors.h"
#include "src/core/ext/transport/chttp2/transport/internal.h"
#include "src/core/ext/transport/chttp2/transport/status_conversion.h"
+#include "src/core/ext/transport/chttp2/transport/varint.h"
#include "src/core/lib/channel/channel_args.h"
#include "src/core/lib/http/parser.h"
#include "src/core/lib/iomgr/workqueue.h"
@@ -1677,8 +1678,9 @@ static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
if (optional_message != NULL) {
size_t msg_len = strlen(optional_message);
- GPR_ASSERT(msg_len < 127);
- message_pfx = grpc_slice_malloc(15);
+ GPR_ASSERT(msg_len <= UINT32_MAX);
+ uint32_t msg_len_len = GRPC_CHTTP2_VARINT_LENGTH((uint32_t)msg_len, 0);
+ message_pfx = grpc_slice_malloc(14 + msg_len_len);
p = GRPC_SLICE_START_PTR(message_pfx);
*p++ = 0x40;
*p++ = 12; /* len(grpc-message) */
@@ -1694,7 +1696,9 @@ static void close_from_api(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
*p++ = 'a';
*p++ = 'g';
*p++ = 'e';
- *p++ = (uint8_t)msg_len;
+ GRPC_CHTTP2_WRITE_VARINT((uint32_t)msg_len, 0, 0, p,
+ (uint32_t)msg_len_len);
+ p += msg_len_len;
GPR_ASSERT(p == GRPC_SLICE_END_PTR(message_pfx));
len += (uint32_t)GRPC_SLICE_LENGTH(message_pfx);
len += (uint32_t)msg_len;
diff --git a/src/core/lib/README.md b/src/core/lib/README.md
new file mode 100644
index 0000000000..69b6bce2d9
--- /dev/null
+++ b/src/core/lib/README.md
@@ -0,0 +1,6 @@
+Required elements of gRPC Core: Each module in this directory is required to
+build gRPC. If it's possible to envisage a configuration where code is not
+required, then that code belongs in ext/ instead.
+
+NOTE: The movement of code between lib and ext is an ongoing effort, so this
+directory currently contains too much of the core library.
diff --git a/src/core/lib/channel/README.md b/src/core/lib/channel/README.md
new file mode 100644
index 0000000000..2dfcfe6e66
--- /dev/null
+++ b/src/core/lib/channel/README.md
@@ -0,0 +1,4 @@
+# Channel
+
+Provides channel/call stack implementation, and implementation of common filters
+for that implementation.
diff --git a/src/core/lib/channel/deadline_filter.c b/src/core/lib/channel/deadline_filter.c
index 8dd6d099e1..a45a4d4b82 100644
--- a/src/core/lib/channel/deadline_filter.c
+++ b/src/core/lib/channel/deadline_filter.c
@@ -83,8 +83,11 @@ static void start_timer_if_needed_locked(grpc_exec_ctx* exec_ctx,
// Take a reference to the call stack, to be owned by the timer.
GRPC_CALL_STACK_REF(deadline_state->call_stack, "deadline_timer");
deadline_state->timer_pending = true;
- grpc_timer_init(exec_ctx, &deadline_state->timer, deadline, timer_callback,
- elem, gpr_now(GPR_CLOCK_MONOTONIC));
+ grpc_closure_init(&deadline_state->timer_callback, timer_callback, elem,
+ grpc_schedule_on_exec_ctx);
+ grpc_timer_init(exec_ctx, &deadline_state->timer, deadline,
+ &deadline_state->timer_callback,
+ gpr_now(GPR_CLOCK_MONOTONIC));
}
}
static void start_timer_if_needed(grpc_exec_ctx* exec_ctx,
diff --git a/src/core/lib/channel/deadline_filter.h b/src/core/lib/channel/deadline_filter.h
index 716a852565..bd2b84f79e 100644
--- a/src/core/lib/channel/deadline_filter.h
+++ b/src/core/lib/channel/deadline_filter.h
@@ -46,6 +46,7 @@ typedef struct grpc_deadline_state {
bool timer_pending;
// The deadline timer.
grpc_timer timer;
+ grpc_closure timer_callback;
// Closure to invoke when the call is complete.
// We use this to cancel the timer.
grpc_closure on_complete;
diff --git a/src/core/lib/channel/handshaker.c b/src/core/lib/channel/handshaker.c
index ff827527b3..c052ca5385 100644
--- a/src/core/lib/channel/handshaker.c
+++ b/src/core/lib/channel/handshaker.c
@@ -86,6 +86,7 @@ struct grpc_handshake_manager {
grpc_tcp_server_acceptor* acceptor;
// Deadline timer across all handshakers.
grpc_timer deadline_timer;
+ grpc_closure on_timeout;
// The final callback and user_data to invoke after the last handshaker.
grpc_closure on_handshake_done;
void* user_data;
@@ -224,9 +225,11 @@ void grpc_handshake_manager_do_handshake(
grpc_schedule_on_exec_ctx);
// Start deadline timer, which owns a ref.
gpr_ref(&mgr->refs);
+ grpc_closure_init(&mgr->on_timeout, on_timeout, mgr,
+ grpc_schedule_on_exec_ctx);
grpc_timer_init(exec_ctx, &mgr->deadline_timer,
gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC),
- on_timeout, mgr, gpr_now(GPR_CLOCK_MONOTONIC));
+ &mgr->on_timeout, gpr_now(GPR_CLOCK_MONOTONIC));
// Start first handshaker, which also owns a ref.
gpr_ref(&mgr->refs);
bool done = call_next_handshaker_locked(exec_ctx, mgr, GRPC_ERROR_NONE);
diff --git a/src/core/lib/iomgr/README.md b/src/core/lib/iomgr/README.md
new file mode 100644
index 0000000000..9b22b76ceb
--- /dev/null
+++ b/src/core/lib/iomgr/README.md
@@ -0,0 +1,6 @@
+# iomgr
+
+Platform abstractions for I/O (mostly network).
+
+Provides abstractions over TCP/UDP I/O, file loading, polling, and concurrency
+management for various operating systems.
diff --git a/src/core/lib/iomgr/tcp_client_posix.c b/src/core/lib/iomgr/tcp_client_posix.c
index c8237dc38f..9a77c92016 100644
--- a/src/core/lib/iomgr/tcp_client_posix.c
+++ b/src/core/lib/iomgr/tcp_client_posix.c
@@ -65,6 +65,7 @@ typedef struct {
grpc_fd *fd;
gpr_timespec deadline;
grpc_timer alarm;
+ grpc_closure on_alarm;
int refs;
grpc_closure write_closure;
grpc_pollset_set *interested_parties;
@@ -352,9 +353,10 @@ static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx,
}
gpr_mu_lock(&ac->mu);
+ grpc_closure_init(&ac->on_alarm, tc_on_alarm, ac, grpc_schedule_on_exec_ctx);
grpc_timer_init(exec_ctx, &ac->alarm,
gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC),
- tc_on_alarm, ac, gpr_now(GPR_CLOCK_MONOTONIC));
+ &ac->on_alarm, gpr_now(GPR_CLOCK_MONOTONIC));
grpc_fd_notify_on_write(exec_ctx, ac->fd, &ac->write_closure);
gpr_mu_unlock(&ac->mu);
diff --git a/src/core/lib/iomgr/tcp_client_uv.c b/src/core/lib/iomgr/tcp_client_uv.c
index ed0de50fc1..5225a5402b 100644
--- a/src/core/lib/iomgr/tcp_client_uv.c
+++ b/src/core/lib/iomgr/tcp_client_uv.c
@@ -49,6 +49,7 @@
typedef struct grpc_uv_tcp_connect {
uv_connect_t connect_req;
grpc_timer alarm;
+ grpc_closure on_alarm;
uv_tcp_t *tcp_handle;
grpc_closure *closure;
grpc_endpoint **endpoint;
@@ -148,9 +149,11 @@ static void tcp_client_connect_impl(grpc_exec_ctx *exec_ctx,
uv_tcp_connect(&connect->connect_req, connect->tcp_handle,
(const struct sockaddr *)resolved_addr->addr,
uv_tc_on_connect);
+ grpc_closure_init(&connect->on_alarm, uv_tc_on_alarm, connect,
+ grpc_schedule_on_exec_ctx);
grpc_timer_init(exec_ctx, &connect->alarm,
gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC),
- uv_tc_on_alarm, connect, gpr_now(GPR_CLOCK_MONOTONIC));
+ &connect->on_alarm, gpr_now(GPR_CLOCK_MONOTONIC));
}
// overridden by api_fuzzer.c
diff --git a/src/core/lib/iomgr/tcp_client_windows.c b/src/core/lib/iomgr/tcp_client_windows.c
index 275258ebb5..1e84ec3a1e 100644
--- a/src/core/lib/iomgr/tcp_client_windows.c
+++ b/src/core/lib/iomgr/tcp_client_windows.c
@@ -58,6 +58,7 @@ typedef struct {
grpc_winsocket *socket;
gpr_timespec deadline;
grpc_timer alarm;
+ grpc_closure on_alarm;
char *addr_name;
int refs;
grpc_closure on_connect;
@@ -229,7 +230,8 @@ void grpc_tcp_client_connect(grpc_exec_ctx *exec_ctx, grpc_closure *on_done,
ac->resource_quota = resource_quota;
grpc_closure_init(&ac->on_connect, on_connect, ac, grpc_schedule_on_exec_ctx);
- grpc_timer_init(exec_ctx, &ac->alarm, deadline, on_alarm, ac,
+ grpc_closure_init(&ac->on_alarm, on_alarm, ac, grpc_schedule_on_exec_ctx);
+ grpc_timer_init(exec_ctx, &ac->alarm, deadline, &ac->on_alarm,
gpr_now(GPR_CLOCK_MONOTONIC));
grpc_socket_notify_on_write(exec_ctx, socket, &ac->on_connect);
return;
diff --git a/src/core/lib/iomgr/timer.h b/src/core/lib/iomgr/timer.h
index 20fe98c4a7..d84a278b18 100644
--- a/src/core/lib/iomgr/timer.h
+++ b/src/core/lib/iomgr/timer.h
@@ -49,15 +49,15 @@
typedef struct grpc_timer grpc_timer;
-/* Initialize *timer. When expired or canceled, timer_cb will be called with
- *timer_cb_arg and error set to indicate if it expired (GRPC_ERROR_NONE) or
- was canceled (GRPC_ERROR_CANCELLED). timer_cb is guaranteed to be called
- exactly once, and application code should check the error to determine
- how it was invoked. The application callback is also responsible for
- maintaining information about when to free up any user-level state. */
+/* Initialize *timer. When expired or canceled, closure will be called with
+ error set to indicate if it expired (GRPC_ERROR_NONE) or was canceled
+ (GRPC_ERROR_CANCELLED). timer_cb is guaranteed to be called exactly once, and
+ application code should check the error to determine how it was invoked. The
+ application callback is also responsible for maintaining information about
+ when to free up any user-level state. */
void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer,
- gpr_timespec deadline, grpc_iomgr_cb_func timer_cb,
- void *timer_cb_arg, gpr_timespec now);
+ gpr_timespec deadline, grpc_closure *closure,
+ gpr_timespec now);
/* Note that there is no timer destroy function. This is because the
timer is a one-time occurrence with a guarantee that the callback will
diff --git a/src/core/lib/iomgr/timer_generic.c b/src/core/lib/iomgr/timer_generic.c
index ecd3b284dc..40c8351472 100644
--- a/src/core/lib/iomgr/timer_generic.c
+++ b/src/core/lib/iomgr/timer_generic.c
@@ -178,28 +178,27 @@ static void note_deadline_change(shard_type *shard) {
}
void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer,
- gpr_timespec deadline, grpc_iomgr_cb_func timer_cb,
- void *timer_cb_arg, gpr_timespec now) {
+ gpr_timespec deadline, grpc_closure *closure,
+ gpr_timespec now) {
int is_first_timer = 0;
shard_type *shard = &g_shards[shard_idx(timer)];
GPR_ASSERT(deadline.clock_type == g_clock_type);
GPR_ASSERT(now.clock_type == g_clock_type);
- grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg,
- grpc_schedule_on_exec_ctx);
+ timer->closure = closure;
timer->deadline = deadline;
timer->triggered = 0;
if (!g_initialized) {
timer->triggered = 1;
grpc_closure_sched(
- exec_ctx, &timer->closure,
+ exec_ctx, timer->closure,
GRPC_ERROR_CREATE("Attempt to create timer before initialization"));
return;
}
if (gpr_time_cmp(deadline, now) <= 0) {
timer->triggered = 1;
- grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE);
+ grpc_closure_sched(exec_ctx, timer->closure, GRPC_ERROR_NONE);
return;
}
@@ -251,7 +250,7 @@ void grpc_timer_cancel(grpc_exec_ctx *exec_ctx, grpc_timer *timer) {
shard_type *shard = &g_shards[shard_idx(timer)];
gpr_mu_lock(&shard->mu);
if (!timer->triggered) {
- grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED);
+ grpc_closure_sched(exec_ctx, timer->closure, GRPC_ERROR_CANCELLED);
timer->triggered = 1;
if (timer->heap_index == INVALID_HEAP_INDEX) {
list_remove(timer);
@@ -317,7 +316,7 @@ static size_t pop_timers(grpc_exec_ctx *exec_ctx, shard_type *shard,
grpc_timer *timer;
gpr_mu_lock(&shard->mu);
while ((timer = pop_one(shard, now))) {
- grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_REF(error));
+ grpc_closure_sched(exec_ctx, timer->closure, GRPC_ERROR_REF(error));
n++;
}
*new_min_deadline = compute_min_deadline(shard);
diff --git a/src/core/lib/iomgr/timer_generic.h b/src/core/lib/iomgr/timer_generic.h
index e4494adb5f..9d901c7e68 100644
--- a/src/core/lib/iomgr/timer_generic.h
+++ b/src/core/lib/iomgr/timer_generic.h
@@ -43,7 +43,7 @@ struct grpc_timer {
int triggered;
struct grpc_timer *next;
struct grpc_timer *prev;
- grpc_closure closure;
+ grpc_closure *closure;
};
#endif /* GRPC_CORE_LIB_IOMGR_TIMER_GENERIC_H */
diff --git a/src/core/lib/iomgr/timer_uv.c b/src/core/lib/iomgr/timer_uv.c
index 00b835ffb8..fa2cdee964 100644
--- a/src/core/lib/iomgr/timer_uv.c
+++ b/src/core/lib/iomgr/timer_uv.c
@@ -55,21 +55,20 @@ void run_expired_timer(uv_timer_t *handle) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
GPR_ASSERT(!timer->triggered);
timer->triggered = 1;
- grpc_closure_sched(&exec_ctx, &timer->closure, GRPC_ERROR_NONE);
+ grpc_closure_sched(&exec_ctx, timer->closure, GRPC_ERROR_NONE);
stop_uv_timer(handle);
grpc_exec_ctx_finish(&exec_ctx);
}
void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer,
- gpr_timespec deadline, grpc_iomgr_cb_func timer_cb,
- void *timer_cb_arg, gpr_timespec now) {
+ gpr_timespec deadline, grpc_closure *closure,
+ gpr_timespec now) {
uint64_t timeout;
uv_timer_t *uv_timer;
- grpc_closure_init(&timer->closure, timer_cb, timer_cb_arg,
- grpc_schedule_on_exec_ctx);
+ timer->closure = closure;
if (gpr_time_cmp(deadline, now) <= 0) {
timer->triggered = 1;
- grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_NONE);
+ grpc_closure_sched(exec_ctx, timer->closure, GRPC_ERROR_NONE);
return;
}
timer->triggered = 0;
@@ -84,7 +83,7 @@ void grpc_timer_init(grpc_exec_ctx *exec_ctx, grpc_timer *timer,
void grpc_timer_cancel(grpc_exec_ctx *exec_ctx, grpc_timer *timer) {
if (!timer->triggered) {
timer->triggered = 1;
- grpc_closure_sched(exec_ctx, &timer->closure, GRPC_ERROR_CANCELLED);
+ grpc_closure_sched(exec_ctx, timer->closure, GRPC_ERROR_CANCELLED);
stop_uv_timer((uv_timer_t *)timer->uv_timer);
}
}
diff --git a/src/core/lib/iomgr/timer_uv.h b/src/core/lib/iomgr/timer_uv.h
index 3de383ebd5..13cf8bd4fa 100644
--- a/src/core/lib/iomgr/timer_uv.h
+++ b/src/core/lib/iomgr/timer_uv.h
@@ -37,7 +37,7 @@
#include "src/core/lib/iomgr/exec_ctx.h"
struct grpc_timer {
- grpc_closure closure;
+ grpc_closure *closure;
/* This is actually a uv_timer_t*, but we want to keep platform-specific
types out of headers */
void *uv_timer;
diff --git a/src/core/lib/surface/README.md b/src/core/lib/surface/README.md
new file mode 100644
index 0000000000..74cbd71131
--- /dev/null
+++ b/src/core/lib/surface/README.md
@@ -0,0 +1,4 @@
+# Surface
+
+Surface provides the bulk of the gRPC Core public API, and translates it into
+calls against core components.
diff --git a/src/core/lib/surface/alarm.c b/src/core/lib/surface/alarm.c
index aa9d60ee6a..e71c0ebfc5 100644
--- a/src/core/lib/surface/alarm.c
+++ b/src/core/lib/surface/alarm.c
@@ -38,6 +38,7 @@
struct grpc_alarm {
grpc_timer alarm;
+ grpc_closure on_alarm;
grpc_cq_completion completion;
/** completion queue where events about this alarm will be posted */
grpc_completion_queue *cq;
@@ -64,9 +65,11 @@ grpc_alarm *grpc_alarm_create(grpc_completion_queue *cq, gpr_timespec deadline,
alarm->tag = tag;
grpc_cq_begin_op(cq, tag);
+ grpc_closure_init(&alarm->on_alarm, alarm_cb, alarm,
+ grpc_schedule_on_exec_ctx);
grpc_timer_init(&exec_ctx, &alarm->alarm,
gpr_convert_clock_type(deadline, GPR_CLOCK_MONOTONIC),
- alarm_cb, alarm, gpr_now(GPR_CLOCK_MONOTONIC));
+ &alarm->on_alarm, gpr_now(GPR_CLOCK_MONOTONIC));
grpc_exec_ctx_finish(&exec_ctx);
return alarm;
}
diff --git a/src/core/lib/transport/README.md b/src/core/lib/transport/README.md
new file mode 100644
index 0000000000..e7e135edeb
--- /dev/null
+++ b/src/core/lib/transport/README.md
@@ -0,0 +1,7 @@
+# Transport
+
+Common implementation details for gRPC Transports.
+
+Transports multiplex messages across some single connection. In ext/ there are
+implementations atop [a custom http2 implementation](/src/core/ext/transport/chttp2/README.md)
+and atop [cronet](/src/core/ext/transport/cronet/README.md).
diff --git a/src/core/lib/tsi/README.md b/src/core/lib/tsi/README.md
new file mode 100644
index 0000000000..3ca3c1ef38
--- /dev/null
+++ b/src/core/lib/tsi/README.md
@@ -0,0 +1,2 @@
+# Transport Security Interface
+An abstraction library over crypto and auth modules (typically OpenSSL)
diff --git a/src/node/interop/interop_client.js b/src/node/interop/interop_client.js
index 46ddecfb1f..75cfb41342 100644
--- a/src/node/interop/interop_client.js
+++ b/src/node/interop/interop_client.js
@@ -312,6 +312,9 @@ function customMetadata(client, done) {
}
};
var streaming_arg = {
+ response_parameters: [
+ {size: 314159}
+ ],
payload: {
body: zeroBuffer(271828)
}
diff --git a/src/php/tests/interop/interop_client.php b/src/php/tests/interop/interop_client.php
index d201915d66..2acf5612c7 100755
--- a/src/php/tests/interop/interop_client.php
+++ b/src/php/tests/interop/interop_client.php
@@ -451,11 +451,22 @@ function customMetadata($stub)
$streaming_request = new grpc\testing\StreamingOutputCallRequest();
$streaming_request->setPayload($payload);
+ $response_parameters = new grpc\testing\ResponseParameters();
+ $response_parameters->setSize($response_len);
+ $streaming_request->getResponseParameters()[] = $response_parameters;
$streaming_call->write($streaming_request);
$streaming_call->writesDone();
+ $result = $streaming_call->read();
hardAssertIfStatusOk($streaming_call->getStatus());
+ $streaming_initial_metadata = $streaming_call->getMetadata();
+ hardAssert(array_key_exists($ECHO_INITIAL_KEY, $streaming_initial_metadata),
+ 'Initial metadata does not contain expected key');
+ hardAssert(
+ $streaming_initial_metadata[$ECHO_INITIAL_KEY][0] === $ECHO_INITIAL_VALUE,
+ 'Incorrect initial metadata value');
+
$streaming_trailing_metadata = $streaming_call->getTrailingMetadata();
hardAssert(array_key_exists($ECHO_TRAILING_KEY,
$streaming_trailing_metadata),
diff --git a/src/python/grpcio/grpc/_channel.py b/src/python/grpcio/grpc/_channel.py
index 41e9163cd6..e8c6a99cb1 100644
--- a/src/python/grpcio/grpc/_channel.py
+++ b/src/python/grpcio/grpc/_channel.py
@@ -32,6 +32,7 @@
import sys
import threading
import time
+import logging
import grpc
from grpc import _common
@@ -197,7 +198,16 @@ def _consume_request_iterator(
event_handler = _event_handler(state, call, None)
def consume_request_iterator():
- for request in request_iterator:
+ while True:
+ try:
+ request = next(request_iterator)
+ except StopIteration:
+ break
+ except Exception as e:
+ logging.exception("Exception iterating requests!")
+ call.cancel()
+ _abort(state, grpc.StatusCode.UNKNOWN, "Exception iterating requests!")
+ return
serialized_request = _common.serialize(request, request_serializer)
with state.condition:
if state.code is None and not state.cancelled:
diff --git a/src/python/grpcio_tests/tests/reflection/_reflection_servicer_test.py b/src/python/grpcio_tests/tests/reflection/_reflection_servicer_test.py
index c7bfeaeb95..43d6c971b5 100644
--- a/src/python/grpcio_tests/tests/reflection/_reflection_servicer_test.py
+++ b/src/python/grpcio_tests/tests/reflection/_reflection_servicer_test.py
@@ -75,7 +75,7 @@ class ReflectionServicerTest(unittest.TestCase):
file_by_filename='i-donut-exist'
),
)
- responses = tuple(self._stub.ServerReflectionInfo(requests))
+ responses = tuple(self._stub.ServerReflectionInfo(iter(requests)))
expected_responses = (
reflection_pb2.ServerReflectionResponse(
valid_host='',
@@ -93,7 +93,7 @@ class ReflectionServicerTest(unittest.TestCase):
)
),
)
- self.assertEqual(expected_responses, responses)
+ self.assertSequenceEqual(expected_responses, responses)
def testFileBySymbol(self):
requests = (
@@ -104,7 +104,7 @@ class ReflectionServicerTest(unittest.TestCase):
file_containing_symbol='i.donut.exist.co.uk.org.net.me.name.foo'
),
)
- responses = tuple(self._stub.ServerReflectionInfo(requests))
+ responses = tuple(self._stub.ServerReflectionInfo(iter(requests)))
expected_responses = (
reflection_pb2.ServerReflectionResponse(
valid_host='',
@@ -122,7 +122,7 @@ class ReflectionServicerTest(unittest.TestCase):
)
),
)
- self.assertEqual(expected_responses, responses)
+ self.assertSequenceEqual(expected_responses, responses)
@unittest.skip('TODO(atash): implement file-containing-extension reflection '
'(see https://github.com/google/protobuf/issues/2248)')
@@ -141,7 +141,7 @@ class ReflectionServicerTest(unittest.TestCase):
),
),
)
- responses = tuple(self._stub.ServerReflectionInfo(requests))
+ responses = tuple(self._stub.ServerReflectionInfo(iter(requests)))
expected_responses = (
reflection_pb2.ServerReflectionResponse(
valid_host='',
@@ -159,7 +159,7 @@ class ReflectionServicerTest(unittest.TestCase):
)
),
)
- self.assertEqual(expected_responses, responses)
+ self.assertSequenceEqual(expected_responses, responses)
def testListServices(self):
requests = (
@@ -167,7 +167,7 @@ class ReflectionServicerTest(unittest.TestCase):
list_services='',
),
)
- responses = tuple(self._stub.ServerReflectionInfo(requests))
+ responses = tuple(self._stub.ServerReflectionInfo(iter(requests)))
expected_responses = (
reflection_pb2.ServerReflectionResponse(
valid_host='',
@@ -179,7 +179,7 @@ class ReflectionServicerTest(unittest.TestCase):
)
),
)
- self.assertEqual(expected_responses, responses)
+ self.assertSequenceEqual(expected_responses, responses)
if __name__ == '__main__':
unittest.main(verbosity=2)
diff --git a/src/python/grpcio_tests/tests/tests.json b/src/python/grpcio_tests/tests/tests.json
index 0109ee2173..70d965d3ca 100644
--- a/src/python/grpcio_tests/tests/tests.json
+++ b/src/python/grpcio_tests/tests/tests.json
@@ -28,6 +28,7 @@
"unit._empty_message_test.EmptyMessageTest",
"unit._exit_test.ExitTest",
"unit._invalid_metadata_test.InvalidMetadataTest",
+ "unit._invocation_defects_test.InvocationDefectsTest",
"unit._metadata_code_details_test.MetadataCodeDetailsTest",
"unit._metadata_test.MetadataTest",
"unit._rpc_test.RPCTest",
diff --git a/src/python/grpcio_tests/tests/unit/_compression_test.py b/src/python/grpcio_tests/tests/unit/_compression_test.py
index 83b9109466..4d3f02e917 100644
--- a/src/python/grpcio_tests/tests/unit/_compression_test.py
+++ b/src/python/grpcio_tests/tests/unit/_compression_test.py
@@ -125,7 +125,7 @@ class CompressionTest(unittest.TestCase):
compressed_channel = grpc.insecure_channel('localhost:%d' % self._port,
options=[('grpc.default_compression_algorithm', 1)])
multi_callable = compressed_channel.stream_stream(_STREAM_STREAM)
- call = multi_callable([request] * test_constants.STREAM_LENGTH)
+ call = multi_callable(iter([request] * test_constants.STREAM_LENGTH))
for response in call:
self.assertEqual(request, response)
diff --git a/src/python/grpcio_tests/tests/unit/_empty_message_test.py b/src/python/grpcio_tests/tests/unit/_empty_message_test.py
index 131f6e9452..69f4689279 100644
--- a/src/python/grpcio_tests/tests/unit/_empty_message_test.py
+++ b/src/python/grpcio_tests/tests/unit/_empty_message_test.py
@@ -123,12 +123,12 @@ class EmptyMessageTest(unittest.TestCase):
def testStreamUnary(self):
response = self._channel.stream_unary(_STREAM_UNARY)(
- [_REQUEST] * test_constants.STREAM_LENGTH)
+ iter([_REQUEST] * test_constants.STREAM_LENGTH))
self.assertEqual(_RESPONSE, response)
def testStreamStream(self):
response_iterator = self._channel.stream_stream(_STREAM_STREAM)(
- [_REQUEST] * test_constants.STREAM_LENGTH)
+ iter([_REQUEST] * test_constants.STREAM_LENGTH))
self.assertSequenceEqual(
[_RESPONSE] * test_constants.STREAM_LENGTH, list(response_iterator))
diff --git a/src/python/grpcio_tests/tests/unit/_exit_scenarios.py b/src/python/grpcio_tests/tests/unit/_exit_scenarios.py
index b33802bf57..777527137f 100644
--- a/src/python/grpcio_tests/tests/unit/_exit_scenarios.py
+++ b/src/python/grpcio_tests/tests/unit/_exit_scenarios.py
@@ -240,7 +240,7 @@ if __name__ == '__main__':
multi_callable = channel.stream_unary(method)
future = multi_callable.future(infinite_request_iterator())
result, call = multi_callable.with_call(
- [REQUEST] * test_constants.STREAM_LENGTH)
+ iter([REQUEST] * test_constants.STREAM_LENGTH))
elif (args.scenario == IN_FLIGHT_STREAM_STREAM_CALL or
args.scenario == IN_FLIGHT_PARTIAL_STREAM_STREAM_CALL):
multi_callable = channel.stream_stream(method)
diff --git a/src/python/grpcio_tests/tests/unit/_invocation_defects_test.py b/src/python/grpcio_tests/tests/unit/_invocation_defects_test.py
new file mode 100644
index 0000000000..4312679bb9
--- /dev/null
+++ b/src/python/grpcio_tests/tests/unit/_invocation_defects_test.py
@@ -0,0 +1,247 @@
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import itertools
+import threading
+import unittest
+from concurrent import futures
+
+import grpc
+from grpc.framework.foundation import logging_pool
+
+from tests.unit.framework.common import test_constants
+from tests.unit.framework.common import test_control
+
+_SERIALIZE_REQUEST = lambda bytestring: bytestring * 2
+_DESERIALIZE_REQUEST = lambda bytestring: bytestring[len(bytestring) // 2:]
+_SERIALIZE_RESPONSE = lambda bytestring: bytestring * 3
+_DESERIALIZE_RESPONSE = lambda bytestring: bytestring[:len(bytestring) // 3]
+
+_UNARY_UNARY = '/test/UnaryUnary'
+_UNARY_STREAM = '/test/UnaryStream'
+_STREAM_UNARY = '/test/StreamUnary'
+_STREAM_STREAM = '/test/StreamStream'
+
+
+class _Callback(object):
+ def __init__(self):
+ self._condition = threading.Condition()
+ self._value = None
+ self._called = False
+
+ def __call__(self, value):
+ with self._condition:
+ self._value = value
+ self._called = True
+ self._condition.notify_all()
+
+ def value(self):
+ with self._condition:
+ while not self._called:
+ self._condition.wait()
+ return self._value
+
+
+class _Handler(object):
+ def __init__(self, control):
+ self._control = control
+
+ def handle_unary_unary(self, request, servicer_context):
+ self._control.control()
+ if servicer_context is not None:
+ servicer_context.set_trailing_metadata((('testkey', 'testvalue',),))
+ return request
+
+ def handle_unary_stream(self, request, servicer_context):
+ for _ in range(test_constants.STREAM_LENGTH):
+ self._control.control()
+ yield request
+ self._control.control()
+ if servicer_context is not None:
+ servicer_context.set_trailing_metadata((('testkey', 'testvalue',),))
+
+ def handle_stream_unary(self, request_iterator, servicer_context):
+ if servicer_context is not None:
+ servicer_context.invocation_metadata()
+ self._control.control()
+ response_elements = []
+ for request in request_iterator:
+ self._control.control()
+ response_elements.append(request)
+ self._control.control()
+ if servicer_context is not None:
+ servicer_context.set_trailing_metadata((('testkey', 'testvalue',),))
+ return b''.join(response_elements)
+
+ def handle_stream_stream(self, request_iterator, servicer_context):
+ self._control.control()
+ if servicer_context is not None:
+ servicer_context.set_trailing_metadata((('testkey', 'testvalue',),))
+ for request in request_iterator:
+ self._control.control()
+ yield request
+ self._control.control()
+
+
+class _MethodHandler(grpc.RpcMethodHandler):
+ def __init__(
+ self, request_streaming, response_streaming, request_deserializer,
+ response_serializer, unary_unary, unary_stream, stream_unary,
+ stream_stream):
+ self.request_streaming = request_streaming
+ self.response_streaming = response_streaming
+ self.request_deserializer = request_deserializer
+ self.response_serializer = response_serializer
+ self.unary_unary = unary_unary
+ self.unary_stream = unary_stream
+ self.stream_unary = stream_unary
+ self.stream_stream = stream_stream
+
+
+class _GenericHandler(grpc.GenericRpcHandler):
+ def __init__(self, handler):
+ self._handler = handler
+
+ def service(self, handler_call_details):
+ if handler_call_details.method == _UNARY_UNARY:
+ return _MethodHandler(
+ False, False, None, None, self._handler.handle_unary_unary, None,
+ None, None)
+ elif handler_call_details.method == _UNARY_STREAM:
+ return _MethodHandler(
+ False, True, _DESERIALIZE_REQUEST, _SERIALIZE_RESPONSE, None,
+ self._handler.handle_unary_stream, None, None)
+ elif handler_call_details.method == _STREAM_UNARY:
+ return _MethodHandler(
+ True, False, _DESERIALIZE_REQUEST, _SERIALIZE_RESPONSE, None, None,
+ self._handler.handle_stream_unary, None)
+ elif handler_call_details.method == _STREAM_STREAM:
+ return _MethodHandler(
+ True, True, None, None, None, None, None,
+ self._handler.handle_stream_stream)
+ else:
+ return None
+
+
+class FailAfterFewIterationsCounter(object):
+ def __init__(self, high, bytestring):
+ self._current = 0
+ self._high = high
+ self._bytestring = bytestring
+
+ def __iter__(self):
+ return self
+
+ def __next__(self):
+ if self._current >= self._high:
+ raise Exception("This is a deliberate failure in a unit test.")
+ else:
+ self._current += 1
+ return self._bytestring
+
+
+def _unary_unary_multi_callable(channel):
+ return channel.unary_unary(_UNARY_UNARY)
+
+
+def _unary_stream_multi_callable(channel):
+ return channel.unary_stream(
+ _UNARY_STREAM,
+ request_serializer=_SERIALIZE_REQUEST,
+ response_deserializer=_DESERIALIZE_RESPONSE)
+
+
+def _stream_unary_multi_callable(channel):
+ return channel.stream_unary(
+ _STREAM_UNARY,
+ request_serializer=_SERIALIZE_REQUEST,
+ response_deserializer=_DESERIALIZE_RESPONSE)
+
+
+def _stream_stream_multi_callable(channel):
+ return channel.stream_stream(_STREAM_STREAM)
+
+
+class InvocationDefectsTest(unittest.TestCase):
+ def setUp(self):
+ self._control = test_control.PauseFailControl()
+ self._handler = _Handler(self._control)
+ self._server_pool = logging_pool.pool(test_constants.THREAD_CONCURRENCY)
+
+ self._server = grpc.server(self._server_pool)
+ port = self._server.add_insecure_port('[::]:0')
+ self._server.add_generic_rpc_handlers((_GenericHandler(self._handler),))
+ self._server.start()
+
+ self._channel = grpc.insecure_channel('localhost:%d' % port)
+
+ def tearDown(self):
+ self._server.stop(0)
+
+ def testIterableStreamRequestBlockingUnaryResponse(self):
+ requests = [b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)]
+ multi_callable = _stream_unary_multi_callable(self._channel)
+
+ with self.assertRaises(grpc.RpcError):
+ response = multi_callable(
+ requests,
+ metadata=(('test', 'IterableStreamRequestBlockingUnaryResponse'),))
+
+ def testIterableStreamRequestFutureUnaryResponse(self):
+ requests = [b'\x07\x08' for _ in range(test_constants.STREAM_LENGTH)]
+ multi_callable = _stream_unary_multi_callable(self._channel)
+ response_future = multi_callable.future(
+ requests,
+ metadata=(
+ ('test', 'IterableStreamRequestFutureUnaryResponse'),))
+
+ with self.assertRaises(grpc.RpcError):
+ response = response_future.result()
+
+ def testIterableStreamRequestStreamResponse(self):
+ requests = [b'\x77\x58' for _ in range(test_constants.STREAM_LENGTH)]
+ multi_callable = _stream_stream_multi_callable(self._channel)
+ response_iterator = multi_callable(
+ requests,
+ metadata=(('test', 'IterableStreamRequestStreamResponse'),))
+
+ with self.assertRaises(grpc.RpcError):
+ next(response_iterator)
+
+ def testIteratorStreamRequestStreamResponse(self):
+ requests_iterator = FailAfterFewIterationsCounter(
+ test_constants.STREAM_LENGTH // 2, b'\x07\x08')
+ multi_callable = _stream_stream_multi_callable(self._channel)
+ response_iterator = multi_callable(
+ requests_iterator,
+ metadata=(('test', 'IteratorStreamRequestStreamResponse'),))
+
+ with self.assertRaises(grpc.RpcError):
+ for _ in range(test_constants.STREAM_LENGTH // 2 + 1):
+ next(response_iterator)
diff --git a/src/python/grpcio_tests/tests/unit/_metadata_test.py b/src/python/grpcio_tests/tests/unit/_metadata_test.py
index da73476929..caba53ffcc 100644
--- a/src/python/grpcio_tests/tests/unit/_metadata_test.py
+++ b/src/python/grpcio_tests/tests/unit/_metadata_test.py
@@ -193,7 +193,7 @@ class MetadataTest(unittest.TestCase):
def testStreamUnary(self):
multi_callable = self._channel.stream_unary(_STREAM_UNARY)
unused_response, call = multi_callable.with_call(
- [_REQUEST] * test_constants.STREAM_LENGTH,
+ iter([_REQUEST] * test_constants.STREAM_LENGTH),
metadata=_CLIENT_METADATA)
self.assertTrue(test_common.metadata_transmitted(
_SERVER_INITIAL_METADATA, call.initial_metadata()))
@@ -202,7 +202,7 @@ class MetadataTest(unittest.TestCase):
def testStreamStream(self):
multi_callable = self._channel.stream_stream(_STREAM_STREAM)
- call = multi_callable([_REQUEST] * test_constants.STREAM_LENGTH,
+ call = multi_callable(iter([_REQUEST] * test_constants.STREAM_LENGTH),
metadata=_CLIENT_METADATA)
self.assertTrue(test_common.metadata_transmitted(
_SERVER_INITIAL_METADATA, call.initial_metadata()))