Merge pull request #5731 from ctiller/huh_omg

Fix some race conditions
pull/5543/head
Jan Tattermusch 9 years ago
commit f9b26d9463
  1. 36
      Makefile
  2. 10
      build.yaml
  3. 14
      src/core/client_config/subchannel.c
  4. 16
      src/core/iomgr/timer.c
  5. 1
      src/core/iomgr/timer.h
  6. 2
      src/core/surface/completion_queue.c
  7. 83
      test/core/surface/concurrent_connectivity_test.c
  8. 16
      tools/run_tests/sources_and_headers.json
  9. 21
      tools/run_tests/tests.json
  10. 27
      vsprojects/buildtests_c.sln
  11. 199
      vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj
  12. 21
      vsprojects/vcxproj/test/concurrent_connectivity_test/concurrent_connectivity_test.vcxproj.filters

@ -849,6 +849,7 @@ chttp2_status_conversion_test: $(BINDIR)/$(CONFIG)/chttp2_status_conversion_test
chttp2_stream_map_test: $(BINDIR)/$(CONFIG)/chttp2_stream_map_test
chttp2_varint_test: $(BINDIR)/$(CONFIG)/chttp2_varint_test
compression_test: $(BINDIR)/$(CONFIG)/compression_test
concurrent_connectivity_test: $(BINDIR)/$(CONFIG)/concurrent_connectivity_test
dns_resolver_connectivity_test: $(BINDIR)/$(CONFIG)/dns_resolver_connectivity_test
dns_resolver_test: $(BINDIR)/$(CONFIG)/dns_resolver_test
dualstack_socket_test: $(BINDIR)/$(CONFIG)/dualstack_socket_test
@ -1160,6 +1161,7 @@ buildtests_c: privatelibs_c \
$(BINDIR)/$(CONFIG)/chttp2_stream_map_test \
$(BINDIR)/$(CONFIG)/chttp2_varint_test \
$(BINDIR)/$(CONFIG)/compression_test \
$(BINDIR)/$(CONFIG)/concurrent_connectivity_test \
$(BINDIR)/$(CONFIG)/dns_resolver_connectivity_test \
$(BINDIR)/$(CONFIG)/dns_resolver_test \
$(BINDIR)/$(CONFIG)/dualstack_socket_test \
@ -1404,6 +1406,8 @@ test_c: buildtests_c
$(Q) $(BINDIR)/$(CONFIG)/chttp2_varint_test || ( echo test chttp2_varint_test failed ; exit 1 )
$(E) "[RUN] Testing compression_test"
$(Q) $(BINDIR)/$(CONFIG)/compression_test || ( echo test compression_test failed ; exit 1 )
$(E) "[RUN] Testing concurrent_connectivity_test"
$(Q) $(BINDIR)/$(CONFIG)/concurrent_connectivity_test || ( echo test concurrent_connectivity_test failed ; exit 1 )
$(E) "[RUN] Testing dns_resolver_connectivity_test"
$(Q) $(BINDIR)/$(CONFIG)/dns_resolver_connectivity_test || ( echo test dns_resolver_connectivity_test failed ; exit 1 )
$(E) "[RUN] Testing dns_resolver_test"
@ -6079,6 +6083,38 @@ endif
endif
CONCURRENT_CONNECTIVITY_TEST_SRC = \
test/core/surface/concurrent_connectivity_test.c \
CONCURRENT_CONNECTIVITY_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CONCURRENT_CONNECTIVITY_TEST_SRC))))
ifeq ($(NO_SECURE),true)
# You can't build secure targets if you don't have OpenSSL.
$(BINDIR)/$(CONFIG)/concurrent_connectivity_test: openssl_dep_error
else
$(BINDIR)/$(CONFIG)/concurrent_connectivity_test: $(CONCURRENT_CONNECTIVITY_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
$(E) "[LD] Linking $@"
$(Q) mkdir -p `dirname $@`
$(Q) $(LD) $(LDFLAGS) $(CONCURRENT_CONNECTIVITY_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/concurrent_connectivity_test
endif
$(OBJDIR)/$(CONFIG)/test/core/surface/concurrent_connectivity_test.o: $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
deps_concurrent_connectivity_test: $(CONCURRENT_CONNECTIVITY_TEST_OBJS:.o=.dep)
ifneq ($(NO_SECURE),true)
ifneq ($(NO_DEPS),true)
-include $(CONCURRENT_CONNECTIVITY_TEST_OBJS:.o=.dep)
endif
endif
DNS_RESOLVER_CONNECTIVITY_TEST_SRC = \
test/core/client_config/resolvers/dns_resolver_connectivity_test.c \

@ -1057,6 +1057,16 @@ targets:
- grpc
- gpr_test_util
- gpr
- name: concurrent_connectivity_test
build: test
language: c
src:
- test/core/surface/concurrent_connectivity_test.c
deps:
- grpc_test_util
- grpc
- gpr_test_util
- gpr
- name: dns_resolver_connectivity_test
cpu_cost: 0.1
build: test

@ -505,7 +505,8 @@ void grpc_connected_subchannel_ping(grpc_exec_ctx *exec_ctx,
elem->filter->start_transport_op(exec_ctx, elem, &op);
}
static void publish_transport(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) {
static void publish_transport_locked(grpc_exec_ctx *exec_ctx,
grpc_subchannel *c) {
size_t channel_stack_size;
grpc_connected_subchannel *con;
grpc_channel_stack *stk;
@ -541,8 +542,6 @@ static void publish_transport(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) {
grpc_closure_init(&sw_subchannel->closure, subchannel_on_child_state_changed,
sw_subchannel);
gpr_mu_lock(&c->mu);
if (c->disconnected) {
gpr_mu_unlock(&c->mu);
gpr_free(sw_subchannel);
@ -575,7 +574,6 @@ static void publish_transport(grpc_exec_ctx *exec_ctx, grpc_subchannel *c) {
grpc_connectivity_state_set(exec_ctx, &c->state_tracker, GRPC_CHANNEL_READY,
"connected");
gpr_mu_unlock(&c->mu);
gpr_free((void *)filters);
}
@ -644,21 +642,23 @@ static void subchannel_connected(grpc_exec_ctx *exec_ctx, void *arg,
bool iomgr_success) {
grpc_subchannel *c = arg;
GRPC_SUBCHANNEL_WEAK_REF(c, "connected");
gpr_mu_lock(&c->mu);
if (c->connecting_result.transport != NULL) {
publish_transport(exec_ctx, c);
publish_transport_locked(exec_ctx, c);
} else if (c->disconnected) {
GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting");
} else {
gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
gpr_mu_lock(&c->mu);
GPR_ASSERT(!c->have_alarm);
c->have_alarm = 1;
grpc_connectivity_state_set(exec_ctx, &c->state_tracker,
GRPC_CHANNEL_TRANSIENT_FAILURE,
"connect_failed");
grpc_timer_init(exec_ctx, &c->alarm, c->next_attempt, on_alarm, c, now);
gpr_mu_unlock(&c->mu);
}
gpr_mu_unlock(&c->mu);
GRPC_SUBCHANNEL_WEAK_UNREF(exec_ctx, c, "connecting");
}
static gpr_timespec compute_connect_deadline(grpc_subchannel *c) {

@ -33,11 +33,11 @@
#include "src/core/iomgr/timer.h"
#include "src/core/iomgr/timer_heap.h"
#include "src/core/iomgr/time_averaged_stats.h"
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/useful.h>
#include "src/core/iomgr/time_averaged_stats.h"
#include "src/core/iomgr/timer_heap.h"
#define INVALID_HEAP_INDEX 0xffffffffu
@ -330,6 +330,18 @@ static int run_some_expired_timers(grpc_exec_ctx *exec_ctx, gpr_timespec now,
gpr_mu_unlock(&g_mu);
gpr_mu_unlock(&g_checker_mu);
} else if (next != NULL) {
/* TODO(ctiller): this forces calling code to do an short poll, and
then retry the timer check (because this time through the timer list was
contended).
We could reduce the cost here dramatically by keeping a count of how many
currently active pollers got through the uncontended case above
successfully, and waking up other pollers IFF that count drops to zero.
Once that count is in place, this entire else branch could disappear. */
*next = gpr_time_min(
*next, gpr_time_add(now, gpr_time_from_millis(1, GPR_TIMESPAN)));
}
return (int)n;

@ -96,7 +96,6 @@ void grpc_timer_cancel(grpc_exec_ctx *exec_ctx, grpc_timer *timer);
*next is never guaranteed to be updated on any given execution; however,
with high probability at least one thread in the system will see an update
at any time slice. */
bool grpc_timer_check(grpc_exec_ctx *exec_ctx, gpr_timespec now,
gpr_timespec *next);
void grpc_timer_list_init(gpr_timespec now);

@ -86,7 +86,7 @@ struct grpc_completion_queue {
#define POLLSET_FROM_CQ(cq) ((grpc_pollset *)(cq + 1))
static gpr_mu g_freelist_mu;
grpc_completion_queue *g_freelist;
static grpc_completion_queue *g_freelist;
static void on_pollset_shutdown_done(grpc_exec_ctx *exec_ctx, void *cc,
bool success);

@ -0,0 +1,83 @@
/*
*
* 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.
*
*/
#include <stdio.h>
#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/thd.h>
#include "test/core/util/test_config.h"
#define NUM_THREADS 100
static grpc_channel* channels[NUM_THREADS];
static grpc_completion_queue* queues[NUM_THREADS];
void create_loop_destroy(void* actually_an_int) {
int thread_index = (int)(intptr_t)(actually_an_int);
for (int i = 0; i < 10; ++i) {
grpc_completion_queue* cq = grpc_completion_queue_create(NULL);
grpc_channel* chan = grpc_insecure_channel_create("localhost", NULL, NULL);
channels[thread_index] = chan;
queues[thread_index] = cq;
for (int j = 0; j < 10; ++j) {
gpr_timespec later_time = GRPC_TIMEOUT_MILLIS_TO_DEADLINE(10);
grpc_connectivity_state state =
grpc_channel_check_connectivity_state(chan, 1);
grpc_channel_watch_connectivity_state(chan, state, later_time, cq, NULL);
GPR_ASSERT(grpc_completion_queue_next(cq,
GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3),
NULL).type == GRPC_OP_COMPLETE);
}
grpc_channel_destroy(channels[thread_index]);
grpc_completion_queue_destroy(queues[thread_index]);
}
}
int main(int argc, char** argv) {
grpc_test_init(argc, argv);
grpc_init();
gpr_thd_id threads[NUM_THREADS];
for (intptr_t i = 0; i < NUM_THREADS; ++i) {
gpr_thd_options options = gpr_thd_options_default();
gpr_thd_options_set_joinable(&options);
gpr_thd_new(&threads[i], create_loop_destroy, (void*)i, &options);
}
for (int i = 0; i < NUM_THREADS; ++i) {
gpr_thd_join(threads[i]);
}
grpc_shutdown();
return 0;
}

@ -189,6 +189,22 @@
"third_party": false,
"type": "target"
},
{
"deps": [
"gpr",
"gpr_test_util",
"grpc",
"grpc_test_util"
],
"headers": [],
"language": "c",
"name": "concurrent_connectivity_test",
"src": [
"test/core/surface/concurrent_connectivity_test.c"
],
"third_party": false,
"type": "target"
},
{
"deps": [
"gpr",

@ -253,6 +253,27 @@
"windows"
]
},
{
"args": [],
"ci_platforms": [
"linux",
"mac",
"posix",
"windows"
],
"cpu_cost": 1.0,
"exclude_configs": [],
"flaky": false,
"gtest": false,
"language": "c",
"name": "concurrent_connectivity_test",
"platforms": [
"linux",
"mac",
"posix",
"windows"
]
},
{
"args": [],
"ci_platforms": [

@ -251,6 +251,17 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "compression_test", "vcxproj
{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "concurrent_connectivity_test", "vcxproj\test\concurrent_connectivity_test\concurrent_connectivity_test.vcxproj", "{391B366C-D916-45AA-3FE5-67363A46193B}"
ProjectSection(myProperties) = preProject
lib = "False"
EndProjectSection
ProjectSection(ProjectDependencies) = postProject
{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
EndProjectSection
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "dns_resolver_connectivity_test", "vcxproj\test\dns_resolver_connectivity_test\dns_resolver_connectivity_test.vcxproj", "{F7B6FE68-E847-D7CA-4062-E737E542BCC3}"
ProjectSection(myProperties) = preProject
lib = "False"
@ -1747,6 +1758,22 @@ Global
{5AFE7D17-A4A7-D68E-4491-CBC852F9D2A0}.Release-DLL|Win32.Build.0 = Release|Win32
{5AFE7D17-A4A7-D68E-4491-CBC852F9D2A0}.Release-DLL|x64.ActiveCfg = Release|x64
{5AFE7D17-A4A7-D68E-4491-CBC852F9D2A0}.Release-DLL|x64.Build.0 = Release|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|Win32.ActiveCfg = Debug|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|x64.ActiveCfg = Debug|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Release|Win32.ActiveCfg = Release|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Release|x64.ActiveCfg = Release|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|Win32.Build.0 = Debug|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug|x64.Build.0 = Debug|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Release|Win32.Build.0 = Release|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Release|x64.Build.0 = Release|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|Win32.Build.0 = Debug|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|x64.ActiveCfg = Debug|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Debug-DLL|x64.Build.0 = Debug|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|Win32.ActiveCfg = Release|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|Win32.Build.0 = Release|Win32
{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|x64.ActiveCfg = Release|x64
{391B366C-D916-45AA-3FE5-67363A46193B}.Release-DLL|x64.Build.0 = Release|x64
{F7B6FE68-E847-D7CA-4062-E737E542BCC3}.Debug|Win32.ActiveCfg = Debug|Win32
{F7B6FE68-E847-D7CA-4062-E737E542BCC3}.Debug|x64.ActiveCfg = Debug|x64
{F7B6FE68-E847-D7CA-4062-E737E542BCC3}.Release|Win32.ActiveCfg = Release|Win32

@ -0,0 +1,199 @@
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<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
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<PropertyGroup Label="Globals">
<ProjectGuid>{391B366C-D916-45AA-3FE5-67363A46193B}</ProjectGuid>
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