lib/glibc
1
0
Fork 0
mirror of https://sourceware.org/git/glibc.git synced 2025-07-29 11:41:21 +03:00
Code Activity

Consolidate and deprecate ftime

Browse Source 
ftime is an obsolete variation on gettimeofday, offering only
millisecond time resolution; it was probably a system call in ooold
versions of BSD Unix.  For historic reasons, we had three
implementations of it.  These are all consolidated into time/ftime.c,
and then the function is deprecated.

For some reason, the implementation of ftime in terms of gettimeofday
was rounding rather than truncating microseconds to milliseconds.  In
all the other places where we use a higher-resolution time function to
implement a lower-resolution one, we truncate.  ftime is changed to
match, just for tidiness' sake.

Like gettimeofday, ftime tries to report the time zone, and using that
information is always a bug.  This patch dummies out the reported
timezone information; the timezone and dstflag fields of the
returned "struct timeb" will always be zero.

Checked on x86_64-linux-gnu, i686-linux-gnu, powerpc64le-linux-gnu,
powerpc64-linux-gnu, and powerpc-linux-gnu.

Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Zack Weinberg
2019-09-04 16:51:23 +00:00
committed by Adhemerval Zanella
parent f9a7554009
commit 2b5fea833b
6 changed files with 21 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
sysdeps/unix/sysv/linux/ftime.c
View File

@ -1,3 +0,0 @@
/* Linux defines the ftime system call but doesn't actually implement
it. Use the BSD implementation. */
#include <sysdeps/unix/bsd/ftime.c>