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varnishcache
varnish-cache
Commits
7a30f9f1
Commit
7a30f9f1
authored
Jan 18, 2018
by
Nils Goroll
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Plain Diff
introduce a bitfield for vsm client segment flags
parent
46561a19
Changes
1
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Showing
1 changed file
with
12 additions
and
10 deletions
+12
-10
vsm.c
lib/libvarnishapi/vsm.c
+12
-10
No files found.
lib/libvarnishapi/vsm.c
View file @
7a30f9f1
...
...
@@ -76,9 +76,10 @@ struct vsm_set;
struct
vsm_seg
{
unsigned
magic
;
#define VSM_SEG_MAGIC 0xeb6c6dfd
unsigned
flags
;
#define VSM_FLAG_MARKSCAN (1U<<0)
#define VSM_FLAG_STALE (1U<<1)
VTAILQ_ENTRY
(
vsm_seg
)
list
;
int
markscan
;
int
stale
;
struct
vsm_set
*
set
;
char
**
av
;
int
refs
;
...
...
@@ -219,7 +220,7 @@ vsm_delseg(struct vsm_seg *vg)
if
(
vg
->
b
!=
NULL
)
vsm_unmapseg
(
vg
);
if
(
vg
->
stale
)
if
(
vg
->
flags
&
VSM_FLAG_STALE
)
VTAILQ_REMOVE
(
&
vg
->
set
->
stale
,
vg
,
list
);
else
VTAILQ_REMOVE
(
&
vg
->
set
->
segs
,
vg
,
list
);
...
...
@@ -487,7 +488,7 @@ vsm_refresh_set2(struct vsm *vd, struct vsm_set *vs, struct vsb *vsb)
p
=
VSB_data
(
vsb
)
+
ac
;
VTAILQ_FOREACH
(
vg
,
&
vs
->
segs
,
list
)
vg
->
markscan
=
0
;
vg
->
flags
&=
~
VSM_FLAG_MARKSCAN
;
/*
* Efficient comparison by walking the two lists side-by-side because
...
...
@@ -527,7 +528,7 @@ vsm_refresh_set2(struct vsm *vd, struct vsm_set *vs, struct vsb *vsb)
AN
(
vg2
);
vg2
->
av
=
av
;
vg2
->
set
=
vs
;
vg2
->
markscan
=
1
;
vg2
->
flags
=
VSM_FLAG_MARKSCAN
;
vg2
->
serial
=
++
vd
->
serial
;
VTAILQ_INSERT_TAIL
(
&
vs
->
segs
,
vg2
,
list
);
continue
;
...
...
@@ -542,7 +543,7 @@ vsm_refresh_set2(struct vsm *vd, struct vsm_set *vs, struct vsb *vsb)
continue
;
/* entry compared equal, so it survives */
vg
->
markscan
=
1
;
vg
->
flags
|=
VSM_FLAG_MARKSCAN
;
vg
=
VTAILQ_NEXT
(
vg
,
list
);
}
return
(
retval
);
...
...
@@ -558,10 +559,11 @@ vsm_refresh_set(struct vsm *vd, struct vsm_set *vs, struct vsb *vsb)
if
(
retval
&
VSM_NUKE_ALL
)
retval
|=
VSM_MGT_CHANGED
;
VTAILQ_FOREACH_SAFE
(
vg
,
&
vs
->
segs
,
list
,
vg2
)
{
if
(
!
vg
->
markscan
||
(
retval
&
VSM_NUKE_ALL
))
{
if
((
vg
->
flags
&
VSM_FLAG_MARKSCAN
)
==
0
||
(
retval
&
VSM_NUKE_ALL
))
{
VTAILQ_REMOVE
(
&
vs
->
segs
,
vg
,
list
);
if
(
vg
->
refs
)
{
vg
->
stale
=
1
;
vg
->
flags
|=
VSM_FLAG_STALE
;
VTAILQ_INSERT_TAIL
(
&
vs
->
stale
,
vg
,
list
);
}
else
{
VAV_Free
(
vg
->
av
);
...
...
@@ -793,7 +795,7 @@ VSM_Unmap(struct vsm *vd, struct vsm_fantom *vf)
if
(
vg
->
refs
>
0
)
return
(
0
);
vsm_unmapseg
(
vg
);
if
(
vg
->
stale
)
if
(
vg
->
flags
&
VSM_FLAG_STALE
)
vsm_delseg
(
vg
);
return
(
0
);
}
...
...
@@ -808,7 +810,7 @@ VSM_StillValid(const struct vsm *vd, const struct vsm_fantom *vf)
CHECK_OBJ_NOTNULL
(
vd
,
VSM_MAGIC
);
AN
(
vf
);
vg
=
vsm_findseg
(
vd
,
vf
);
if
(
vg
==
NULL
||
vg
->
stale
)
if
(
vg
==
NULL
||
vg
->
flags
&
VSM_FLAG_STALE
)
return
(
VSM_invalid
);
return
(
VSM_valid
);
}
...
...
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