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| author | Songtao Zhan <zhanst1@chinatelecom.cn> | 2023-04-19 09:38:52 +0800 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2023-04-25 21:54:47 +0200 |
| commit | 3fa0fc5824324c11d78bf961648bb200da31d7bd (patch) | |
| tree | 2e9297b468ce6cc287fc5614d73d60ac06eedadd | |
| parent | 36c8c101cdcd668afefee94f3c0f62ef0bc6d286 (diff) | |
| download | openvswitch-3fa0fc5824324c11d78bf961648bb200da31d7bd.tar.gz | |
util: Fix an issue that thread name cannot be set.
The name of the current thread consists of a name with a maximum
length of 16 bytes and a thread ID. The final name may be longer
than 16 bytes. If the name is longer than 16 bytes, the thread
name will fail to be set
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: Songtao Zhan <zhanst1@chinatelecom.cn>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
| -rw-r--r-- | lib/util.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/util.c b/lib/util.c index 96a71550d..3fb3a4b40 100644 --- a/lib/util.c +++ b/lib/util.c @@ -645,6 +645,12 @@ set_subprogram_name(const char *subprogram_name) free(subprogram_name_set(pname)); #if HAVE_GLIBC_PTHREAD_SETNAME_NP + /* The maximum supported thread name including '\0' is 16. + * Add '>' at 0th position to highlight that the name was truncated. */ + if (strlen(pname) > 15) { + memmove(pname, &pname[strlen(pname) - 15], 15 + 1); + pname[0] = '>'; + } pthread_setname_np(pthread_self(), pname); #elif HAVE_NETBSD_PTHREAD_SETNAME_NP pthread_setname_np(pthread_self(), "%s", pname); |