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timeout.c
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Kirill Smelkov
timeout.c
Commits
2c55edda
Commit
2c55edda
authored
May 27, 2013
by
William Ahern
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Plain Diff
fix fls paramterization
parent
df1d1855
Changes
1
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Showing
1 changed file
with
27 additions
and
27 deletions
+27
-27
timer.c
timer.c
+27
-27
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timer.c
View file @
2c55edda
...
...
@@ -74,18 +74,18 @@ static int timer_debug;
#define HAI SAY("HAI")
static
inline
char
*
fmt_
(
char
*
buf
,
uint64_t
ts
)
{
static
inline
char
*
fmt_
(
char
*
buf
,
uint64_t
ts
,
int
wheel_bit
,
int
wheel_num
)
{
char
*
p
=
buf
;
int
period
,
n
,
i
;
int
wheel
,
n
,
i
;
for
(
period
=
2
;
period
>=
0
;
period
--
)
{
n
=
63
&
(
ts
>>
(
period
*
6
));
for
(
wheel
=
wheel_num
-
2
;
wheel
>=
0
;
wheel
--
)
{
n
=
((
1
<<
wheel_bit
)
-
1
)
&
(
ts
>>
(
wheel
*
WHEEL_BIT
));
for
(
i
=
5
;
i
>=
0
;
i
--
)
{
for
(
i
=
wheel_bit
-
1
;
i
>=
0
;
i
--
)
{
*
p
++
=
'0'
+
!!
(
n
&
(
1
<<
i
));
}
if
(
period
!=
0
)
if
(
wheel
!=
0
)
*
p
++
=
':'
;
}
...
...
@@ -94,15 +94,15 @@ static inline char *fmt_(char *buf, uint64_t ts) {
return
buf
;
}
/* fmt_() */
#define fmt(ts) fmt_(((char[
64]){ 0 }), (ts)
)
#define fmt(ts) fmt_(((char[
(1 << WHEEL_BIT) + WHEEL_NUM + 1]){ 0 }), (ts), WHEEL_BIT, WHEEL_NUM
)
static
inline
char
*
bin64_
(
char
*
buf
,
uint64_t
n
)
{
static
inline
char
*
bin64_
(
char
*
buf
,
uint64_t
n
,
int
wheel_bit
)
{
char
*
p
=
buf
;
int
i
;
for
(
i
=
0
;
i
<
64
;
i
++
)
{
*
p
++
=
"01"
[
0x1
&
(
n
>>
(
63
-
i
))];
for
(
i
=
0
;
i
<
(
1
<<
wheel_bit
)
;
i
++
)
{
*
p
++
=
"01"
[
0x1
&
(
n
>>
(
((
1
<<
wheel_bit
)
-
1
)
-
i
))];
}
*
p
=
0
;
...
...
@@ -110,7 +110,7 @@ static inline char *bin64_(char *buf, uint64_t n) {
return
buf
;
}
/* bin64_() */
#define bin64(ts) bin64_(((char[
65]){ 0 }), (ts)
)
#define bin64(ts) bin64_(((char[
(1 << WHEEL_BIT) + 1]){ 0 }), (ts), WHEEL_BIT
)
/*
...
...
@@ -176,7 +176,7 @@ static inline char *bin64_(char *buf, uint64_t n) {
typedef
uint64_t
wheel_t
;
#define ctz(n) __builtin_ctzll(n)
#define fls(n) ((
1 << WHEEL
_BIT) - __builtin_clzll(n))
#define fls(n) ((
int)(sizeof (long long) * CHAR
_BIT) - __builtin_clzll(n))
#elif WHEEL_BIT == 5
...
...
@@ -187,7 +187,7 @@ typedef uint64_t wheel_t;
typedef
uint32_t
wheel_t
;
#define ctz(n) __builtin_ctzl(n)
#define fls(n) ((
1 << WHEEL
_BIT) - __builtin_clzl(n))
#define fls(n) ((
int)(sizeof (long) * CHAR
_BIT) - __builtin_clzl(n))
#elif WHEEL_BIT == 4
...
...
@@ -198,7 +198,7 @@ typedef uint32_t wheel_t;
typedef
uint16_t
wheel_t
;
#define ctz(n) __builtin_ctz(n)
#define fls(n) ((
1 << WHEEL
_BIT) - __builtin_clz(n))
#define fls(n) ((
int)(sizeof (int) * CHAR
_BIT) - __builtin_clz(n))
#elif WHEEL_BIT == 3
...
...
@@ -209,7 +209,7 @@ typedef uint16_t wheel_t;
typedef
uint8_t
wheel_t
;
#define ctz(n) __builtin_ctz(n)
#define fls(n) ((
1 << WHEEL
_BIT) - __builtin_clz(n))
#define fls(n) ((
int)(sizeof (int) * CHAR
_BIT) - __builtin_clz(n))
#else
#error invalid WHEEL_BIT value
...
...
@@ -232,16 +232,6 @@ static inline wheel_t rotr(const wheel_t v, int c) {
}
/* rotr() */
static
inline
int
timeout_wheel
(
timeout_t
timeout
)
{
return
(
fls
(
MIN
(
timeout
,
TIMEOUT_MAX
))
-
1
)
/
WHEEL_BIT
;
}
/* timeout_wheel() */
static
inline
int
timer_slot
(
int
wheel
,
timer_t
expires
)
{
return
WHEEL_MASK
&
((
expires
>>
(
wheel
*
WHEEL_BIT
))
-
!!
wheel
);
}
/* timer_slot() */
/*
* T I M E O U T R O U T I N E S
*
...
...
@@ -328,6 +318,16 @@ static inline timeout_t timer_rem(struct timer *T, struct timeout *to) {
}
/* timer_rem() */
static
inline
int
timeout_wheel
(
timeout_t
timeout
)
{
return
(
fls
(
MIN
(
timeout
,
TIMEOUT_MAX
))
-
1
)
/
WHEEL_BIT
;
}
/* timeout_wheel() */
static
inline
int
timer_slot
(
int
wheel
,
timer_t
expires
)
{
return
WHEEL_MASK
&
((
expires
>>
(
wheel
*
WHEEL_BIT
))
-
!!
wheel
);
}
/* timer_slot() */
void
timer_add
(
struct
timer
*
T
,
struct
timeout
*
to
,
timer_t
expires
)
{
timeout_t
rem
;
int
wheel
,
slot
;
...
...
@@ -380,12 +380,12 @@ void timer_step(struct timer *T, timer_t curtime) {
SAYit
(
2
,
"-- wheel (%u) ------------------------------------"
,
wheel
);
if
((
elapsed
>>
(
wheel
*
WHEEL_BIT
))
>
WHEEL_MAX
)
{
pending
=
~
WHEEL_C
(
0
);
pending
=
(
wheel_t
)
~
WHEEL_C
(
0
);
}
else
{
_elapsed
=
WHEEL_MASK
&
(
elapsed
>>
(
wheel
*
WHEEL_BIT
));
slot
=
WHEEL_MASK
&
(
T
->
curtime
>>
(
wheel
*
WHEEL_BIT
));
SAYit
(
2
,
"wheel:%
u _elapsed:%llu
slot:%d"
,
wheel
,
_elapsed
,
slot
);
SAYit
(
2
,
"wheel:%
d _elapsed:%"
WHEEL_PRIu
"
slot:%d"
,
wheel
,
_elapsed
,
slot
);
pending
=
rotl
(((
UINT64_C
(
1
)
<<
_elapsed
)
-
1
),
slot
);
slot
=
WHEEL_MASK
&
(
curtime
>>
(
wheel
*
WHEEL_BIT
));
...
...
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