Hi Connor,
>-----Original Message-----
>From: Min Hu (Connor) <humi...@huawei.com>
>Sent: Friday 16 April 2021 09:18
>To: dev@dpdk.org
>Cc: Yigit, Ferruh <ferruh.yi...@intel.com>; Power, Ciara
><ciara.po...@intel.com>; Pattan, Reshma <reshma.pat...@intel.com>;
>david.march...@redhat.com
>Subject: [PATCH v4 1/2] telemetry: fix missing check for thread creation
>
>From: Chengwen Feng <fengcheng...@huawei.com>
>
>Add result check and message print out for thread creation after failure.
>
>Fixes: b80fe1805eee ("telemetry: introduce backward compatibility")
>Cc: sta...@dpdk.org
>
>Signed-off-by: Chengwen Feng <fengcheng...@huawei.com>
>Signed-off-by: Min Hu (Connor) <humi...@huawei.com>
>---
> lib/librte_telemetry/telemetry.c | 37
>++++++++++++++++++++++++++++++---
> lib/librte_telemetry/telemetry_legacy.c | 11 ++++++++--
> 2 files changed, 43 insertions(+), 5 deletions(-)
>
>diff --git a/lib/librte_telemetry/telemetry.c
>b/lib/librte_telemetry/telemetry.c
>index 7e08afd..08ce189 100644
>--- a/lib/librte_telemetry/telemetry.c
>+++ b/lib/librte_telemetry/telemetry.c
>@@ -350,6 +350,7 @@ socket_listener(void *socket) {
> while (1) {
> pthread_t th;
>+ int rc;
> struct socket *s = (struct socket *)socket;
> int s_accepted = accept(s->sock, NULL, NULL);
> if (s_accepted < 0) {
>@@ -366,7 +367,17 @@ socket_listener(void *socket)
> __atomic_add_fetch(s->num_clients, 1,
> __ATOMIC_RELAXED);
> }
>- pthread_create(&th, NULL, s->fn, (void
>*)(uintptr_t)s_accepted);
>+ rc = pthread_create(&th, NULL, s->fn,
>+ (void *)(uintptr_t)s_accepted);
>+ if (rc != 0) {
>+ TMTY_LOG(ERR, "Error with create client thread:
>%s\n",
>+ strerror(rc));
>+ close(s_accepted);
>+ if (s->num_clients != NULL)
>+ __atomic_sub_fetch(s->num_clients, 1,
>+ __ATOMIC_RELAXED);
>+ continue;
>+ }
> pthread_detach(th);
> }
> return NULL;
>@@ -425,6 +436,7 @@ static int
> telemetry_legacy_init(void)
> {
> pthread_t t_old;
>+ int rc;
>
> if (num_legacy_callbacks == 1) {
> TMTY_LOG(WARNING, "No legacy callbacks, legacy socket
>not created\n"); @@ -440,7 +452,16 @@ telemetry_legacy_init(void)
> v1_socket.sock = create_socket(v1_socket.path);
> if (v1_socket.sock < 0)
> return -1;
>- pthread_create(&t_old, NULL, socket_listener, &v1_socket);
>+ rc = pthread_create(&t_old, NULL, socket_listener, &v1_socket);
>+ if (rc != 0) {
>+ TMTY_LOG(ERR, "Error with create legcay socket thread:
>%s\n",
>+ strerror(rc));
>+ close(v1_socket.sock);
>+ v1_socket.sock = -1;
>+ unlink(v1_socket.path);
>+ v1_socket.path[0] = '\0';
>+ return -1;
>+ }
> pthread_setaffinity_np(t_old, sizeof(*thread_cpuset), thread_cpuset);
>
> TMTY_LOG(DEBUG, "Legacy telemetry socket initialized ok\n"); @@
>-451,6 +472,7 @@ static int
> telemetry_v2_init(void)
> {
> pthread_t t_new;
>+ int rc;
>
> v2_socket.num_clients = &v2_clients;
> rte_telemetry_register_cmd("/", list_commands, @@ -469,7 +491,16
>@@ telemetry_v2_init(void)
> v2_socket.sock = create_socket(v2_socket.path);
> if (v2_socket.sock < 0)
> return -1;
>- pthread_create(&t_new, NULL, socket_listener, &v2_socket);
>+ rc = pthread_create(&t_new, NULL, socket_listener, &v2_socket);
>+ if (rc != 0) {
>+ TMTY_LOG(ERR, "Error with create socket thread: %s\n",
>+ strerror(rc));
>+ close(v2_socket.sock);
>+ v2_socket.sock = -1;
>+ unlink(v2_socket.path);
>+ v2_socket.path[0] = '\0';
>+ return -1;
>+ }
> pthread_setaffinity_np(t_new, sizeof(*thread_cpuset),
>thread_cpuset);
> atexit(unlink_sockets);
>
>diff --git a/lib/librte_telemetry/telemetry_legacy.c
>b/lib/librte_telemetry/telemetry_legacy.c
>index 5e9af37..b7cd1bd 100644
>--- a/lib/librte_telemetry/telemetry_legacy.c
>+++ b/lib/librte_telemetry/telemetry_legacy.c
>@@ -83,6 +83,7 @@ register_client(const char *cmd __rte_unused, const
>char *params,
> pthread_t th;
> char data[BUF_SIZE];
> int fd;
>+ int rc;
> struct sockaddr_un addrs;
> #endif /* !RTE_EXEC_ENV_WINDOWS */
>
>@@ -112,8 +113,14 @@ register_client(const char *cmd __rte_unused,
>const char *params,
> close(fd);
> return -1;
> }
>- pthread_create(&th, NULL, &legacy_client_handler,
>- (void *)(uintptr_t)fd);
>+ rc = pthread_create(&th, NULL, &legacy_client_handler,
>+ (void *)(uintptr_t)fd);
>+ if (rc != 0) {
>+ fprintf(stderr, "Failed to create legacy client thread: %s\n",
>+ strerror(rc));
>+ close(fd);
>+ return -1;
>+ }
> #endif /* !RTE_EXEC_ENV_WINDOWS */
> return 0;
> }
>--
>2.7.4
I think there is a Fixes tag missing for commit:
Fixes: 6dd571fd07c3 ("telemetry: introduce new functionality")
With that added in, the code changes look good to me,
Acked-by: Ciara Power <ciara.po...@intel.com>
Thanks!
