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-rw-r--r--src/core/iomgr/block_annotate.h44
-rw-r--r--src/core/iomgr/pollset_multipoller_with_epoll.c5
-rw-r--r--src/core/iomgr/pollset_multipoller_with_poll_posix.c3
-rw-r--r--src/core/iomgr/pollset_posix.c3
-rw-r--r--src/core/iomgr/resolve_address_posix.c6
-rw-r--r--src/core/iomgr/resolve_address_windows.c3
6 files changed, 64 insertions, 0 deletions
diff --git a/src/core/iomgr/block_annotate.h b/src/core/iomgr/block_annotate.h
new file mode 100644
index 0000000000..c962da0a89
--- /dev/null
+++ b/src/core/iomgr/block_annotate.h
@@ -0,0 +1,44 @@
+/*
+ *
+ * Copyright 2015, 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.
+ *
+ */
+
+#ifndef GRPC_INTERNAL_CORE_IOMGR_BLOCK_ANNOTATE_H
+#define GRPC_INTERNAL_CORE_IOMGR_BLOCK_ANNOTATE_H
+
+/* These annotations identify the beginning and end of regions where
+ the code may block for reasons other than synchronization functions.
+ These include poll, epoll, and getaddrinfo. */
+
+#define GRPC_IOMGR_START_BLOCKING_REGION do {} while (0)
+#define GRPC_IOMGR_END_BLOCKING_REGION do {} while (0)
+
+#endif /* GRPC_INTERNAL_CORE_IOMGR_BLOCK_ANNOTATE_H */
diff --git a/src/core/iomgr/pollset_multipoller_with_epoll.c b/src/core/iomgr/pollset_multipoller_with_epoll.c
index 481bdc4ede..39746d501b 100644
--- a/src/core/iomgr/pollset_multipoller_with_epoll.c
+++ b/src/core/iomgr/pollset_multipoller_with_epoll.c
@@ -41,6 +41,7 @@
#include <sys/epoll.h>
#include <unistd.h>
+#include "src/core/iomgr/block_annotate.h"
#include "src/core/iomgr/fd_posix.h"
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
@@ -180,7 +181,9 @@ static void multipoll_with_epoll_pollset_maybe_work(
pfds[1].events = POLLIN;
pfds[1].revents = 0;
+ GRPC_IOMGR_START_BLOCKING_REGION;
poll_rv = grpc_poll_function(pfds, 2, timeout_ms);
+ GRPC_IOMGR_END_BLOCKING_REGION;
if (poll_rv < 0) {
if (errno != EINTR) {
@@ -194,7 +197,9 @@ static void multipoll_with_epoll_pollset_maybe_work(
}
if (pfds[1].revents) {
do {
+ GRPC_IOMGR_START_BLOCKING_REGION;
ep_rv = epoll_wait(h->epoll_fd, ep_ev, GRPC_EPOLL_MAX_EVENTS, 0);
+ GRPC_IOMGR_END_BLOCKING_REGION;
if (ep_rv < 0) {
if (errno != EINTR) {
gpr_log(GPR_ERROR, "epoll_wait() failed: %s", strerror(errno));
diff --git a/src/core/iomgr/pollset_multipoller_with_poll_posix.c b/src/core/iomgr/pollset_multipoller_with_poll_posix.c
index cae260cab0..0b12aaca6d 100644
--- a/src/core/iomgr/pollset_multipoller_with_poll_posix.c
+++ b/src/core/iomgr/pollset_multipoller_with_poll_posix.c
@@ -42,6 +42,7 @@
#include <stdlib.h>
#include <string.h>
+#include "src/core/iomgr/block_annotate.h"
#include "src/core/iomgr/fd_posix.h"
#include "src/core/iomgr/iomgr_internal.h"
#include <grpc/support/alloc.h>
@@ -145,7 +146,9 @@ static void multipoll_with_poll_pollset_maybe_work(
POLLOUT, &watchers[i]);
}
+ GRPC_IOMGR_START_BLOCKING_REGION;
r = grpc_poll_function(pfds, pfd_count, timeout);
+ GRPC_IOMGR_END_BLOCKING_REGION;
for (i = 1; i < pfd_count; i++) {
grpc_fd_end_poll(&watchers[i], pfds[i].revents & POLLIN,
diff --git a/src/core/iomgr/pollset_posix.c b/src/core/iomgr/pollset_posix.c
index f3e424e83c..cfdfbcf606 100644
--- a/src/core/iomgr/pollset_posix.c
+++ b/src/core/iomgr/pollset_posix.c
@@ -43,6 +43,7 @@
#include <unistd.h>
#include "src/core/iomgr/alarm_internal.h"
+#include "src/core/iomgr/block_annotate.h"
#include "src/core/iomgr/fd_posix.h"
#include "src/core/iomgr/iomgr_internal.h"
#include "src/core/iomgr/socket_utils_posix.h"
@@ -453,7 +454,9 @@ static void basic_pollset_maybe_work(grpc_pollset *pollset,
/* poll fd count (argument 2) is shortened by one if we have no events
to poll on - such that it only includes the kicker */
+ GRPC_IOMGR_START_BLOCKING_REGION;
r = grpc_poll_function(pfd, nfds, timeout);
+ GRPC_IOMGR_END_BLOCKING_REGION;
GRPC_TIMER_MARK(GRPC_PTAG_POLL_FINISHED, r);
if (fd) {
diff --git a/src/core/iomgr/resolve_address_posix.c b/src/core/iomgr/resolve_address_posix.c
index 91754ebaaa..e7ebe3a2e6 100644
--- a/src/core/iomgr/resolve_address_posix.c
+++ b/src/core/iomgr/resolve_address_posix.c
@@ -41,6 +41,7 @@
#include <sys/un.h>
#include <string.h>
+#include "src/core/iomgr/block_annotate.h"
#include "src/core/iomgr/iomgr_internal.h"
#include "src/core/iomgr/sockaddr_utils.h"
#include "src/core/support/string.h"
@@ -103,13 +104,18 @@ grpc_resolved_addresses *grpc_blocking_resolve_address(
hints.ai_socktype = SOCK_STREAM; /* stream socket */
hints.ai_flags = AI_PASSIVE; /* for wildcard IP address */
+ GRPC_IOMGR_START_BLOCKING_REGION;
s = getaddrinfo(host, port, &hints, &result);
+ GRPC_IOMGR_END_BLOCKING_REGION;
+
if (s != 0) {
/* Retry if well-known service name is recognized */
char *svc[][2] = {{"http", "80"}, {"https", "443"}};
for (i = 0; i < GPR_ARRAY_SIZE(svc); i++) {
if (strcmp(port, svc[i][0]) == 0) {
+ GRPC_IOMGR_START_BLOCKING_REGION;
s = getaddrinfo(host, svc[i][1], &hints, &result);
+ GRPC_IOMGR_END_BLOCKING_REGION;
break;
}
}
diff --git a/src/core/iomgr/resolve_address_windows.c b/src/core/iomgr/resolve_address_windows.c
index fb5fd0d4f6..e9297a7895 100644
--- a/src/core/iomgr/resolve_address_windows.c
+++ b/src/core/iomgr/resolve_address_windows.c
@@ -40,6 +40,7 @@
#include <sys/types.h>
#include <string.h>
+#include "src/core/iomgr/block_annotate.h"
#include "src/core/iomgr/iomgr_internal.h"
#include "src/core/iomgr/sockaddr_utils.h"
#include "src/core/support/string.h"
@@ -88,7 +89,9 @@ grpc_resolved_addresses *grpc_blocking_resolve_address(
hints.ai_socktype = SOCK_STREAM; /* stream socket */
hints.ai_flags = AI_PASSIVE; /* for wildcard IP address */
+ GRPC_IOMGR_START_BLOCKING_REGION;
s = getaddrinfo(host, port, &hints, &result);
+ GRPC_IOMGR_END_BLOCKING_REGION;
if (s != 0) {
gpr_log(GPR_ERROR, "getaddrinfo: %s", gai_strerror(s));
goto done;
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-07 10:13:45 +0000