Before glibc 2.17, bindresvport() is not thread-safe. Since glibc 2.17, it is thread-safe, the patch can refer to URL: http://sourceware.org/git/?p=glibc.git;a=commit;h=f6da27e53695ad1cc0e2a9490358decbbfdff5e5 Signed-off-by: Peng Haitao <penght@xxxxxxxxxxxxxx> --- man3/bindresvport.3 | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/man3/bindresvport.3 b/man3/bindresvport.3 index d2e73a4..2c7152d 100644 --- a/man3/bindresvport.3 +++ b/man3/bindresvport.3 @@ -89,6 +89,16 @@ is not NULL and .I sin->sin_family is not .BR AF_INET . +.SH ATTRIBUTES +.SS Multithreading (see pthreads(7)) +Before glibc 2.17, the +.BR bindresvport () +uses a static variable that is not protected, so it is not thread-safe. + +Since glibc 2.17, the +.BR bindresvport () +uses a lock to protect static variable, so it is thread-safe. +.\" Modified in commit f6da27e53695ad1cc0e2a9490358decbbfdff5e5 .SH CONFORMING TO Not in POSIX.1-2001. Present on the BSDs, Solaris, and many other systems. -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
