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videolan
vlc-gpu
Commits
a056e64e
Commit
a056e64e
authored
May 19, 2008
by
Rémi Denis-Courmont
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mwait/mdate: remove cached_time - not thread-safe
Could go badly wrong on platforms without atomic 64-bits access
parent
e2b38c96
Changes
1
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1 changed file
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3 additions
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12 deletions
+3
-12
src/misc/mtime.c
src/misc/mtime.c
+3
-12
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src/misc/mtime.c
View file @
a056e64e
...
...
@@ -172,8 +172,6 @@ static inline unsigned mprec( void )
#endif
}
static
volatile
mtime_t
cached_time
=
0
;
/**
* Return high precision date
*
...
...
@@ -313,7 +311,7 @@ mtime_t mdate( void )
res
=
(
mtime_t
)
tv_date
.
tv_sec
*
1000000
+
(
mtime_t
)
tv_date
.
tv_usec
;
#endif
return
cached_time
=
res
;
return
res
;
}
/**
...
...
@@ -327,9 +325,8 @@ mtime_t mdate( void )
void
mwait
(
mtime_t
date
)
{
/* If the deadline is already elapsed, or within the clock precision,
* do not even bother the clock. */
if
(
(
date
-
cached_time
)
<
(
mtime_t
)
mprec
()
)
// OK: mtime_t is signed
return
;
* do not even bother the system timer. */
date
-=
mprec
();
#if 0 && defined (HAVE_CLOCK_NANOSLEEP)
lldiv_t d = lldiv( date, 1000000 );
...
...
@@ -360,8 +357,6 @@ void mwait( mtime_t date )
*/
void
msleep
(
mtime_t
delay
)
{
mtime_t
earlier
=
cached_time
;
#if defined( HAVE_CLOCK_NANOSLEEP )
lldiv_t
d
=
lldiv
(
delay
,
1000000
);
struct
timespec
ts
=
{
d
.
quot
,
d
.
rem
*
1000
};
...
...
@@ -398,10 +393,6 @@ void msleep( mtime_t delay )
* or clock_nanosleep() if this is an issue. */
select
(
0
,
NULL
,
NULL
,
NULL
,
&
tv_delay
);
#endif
earlier
+=
delay
;
if
(
cached_time
<
earlier
)
cached_time
=
earlier
;
}
/*
...
...
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