mir/bind
2
0
Fork 0
mirror of https://gitlab.isc.org/isc-projects/bind9 synced 2025-08-22 10:10:06 +00:00
Code Issues Releases Wiki Activity

Prevent unbuffered stderr I/O on Windows

Browse Source 
Make stderr fully buffered on Windows to improve named performance when
it is logging to stderr, which happens e.g. in system tests.  Note that:

  - line buffering (_IOLBF) is unavailable on Windows,

  - fflush() is called anyway after each log message gets written to the
    default stderr logging channels created by libisc.
This commit is contained in:
Michał Kępień 2019-09-26 13:53:03 +02:00
parent 27cd2c7c23
commit c72da3497d
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
bin/named/main.c
View File

@ -1398,6 +1398,17 @@ main(int argc, char *argv[]) {
(void) ProfilerStart(NULL);
#endif
#ifdef WIN32
/*
* Prevent unbuffered I/O from crippling named performance on Windows
* when it is logging to stderr (e.g. in system tests). Use full
* buffering (_IOFBF) as line buffering (_IOLBF) is unavailable on
* Windows and fflush() is called anyway after each log message gets
* written to the default stderr logging channels created by libisc.
*/
setvbuf(stderr, NULL, _IOFBF, BUFSIZ);
#endif
/*
* Record version in core image.
* strings named.core | grep "named version:"