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yitter
雪花ID全家桶(SnowFlake IdGenerator)
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1f13dca4
雪
雪花ID全家桶(SnowFlake IdGenerator)
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yitter
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雪花ID全家桶(SnowFlake IdGenerator)
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1f13dca4
编写于
6月 15, 2022
作者:
微
微希夷
提交者:
yitter
6月 15, 2022
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差异文件
!18 !optimize cpu used
* !optimize 时间追平漂移量时,损耗一点时间(微妙级别)降低CPU占用
上级
5e243405
变更
1
显示空白变更内容
内联
并排
Showing
1 changed file
with
32 addition
and
20 deletion
+32
-20
PHP/src/snowflake/snowflake.c
PHP/src/snowflake/snowflake.c
+32
-20
未找到文件。
PHP/src/snowflake/snowflake.c
浏览文件 @
1f13dca4
...
...
@@ -4,6 +4,7 @@
#else
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#endif
#include <stdlib.h>
#include <stdio.h>
...
...
@@ -11,19 +12,19 @@
#include "spinlock.h"
// static void EndOverCostAction(uint64_t useTimeTick, snowflake *flake);
static
inline
uint64_t
NextOverCostId
(
snowflake
*
flake
);
static
inline
uint64_t
NextNormalId
(
snowflake
*
flake
);
static
inline
uint64_t
GetCurrentTimeTick
(
snowflake
*
flake
);
static
inline
uint64_t
GetNextTimeTick
(
snowflake
*
flake
);
static
inline
uint64_t
CalcId
(
snowflake
*
flake
);
static
inline
uint64_t
CalcTurnBackId
(
snowflake
*
flake
);
static
inline
uint64_t
NextOverCostId
(
snowflake
*
flake
);
static
inline
uint64_t
NextNormalId
(
snowflake
*
flake
);
static
inline
uint64_t
GetCurrentTimeTick
(
snowflake
*
flake
);
static
inline
uint64_t
GetNextTimeTick
(
snowflake
*
flake
);
static
inline
uint64_t
CalcId
(
snowflake
*
flake
);
static
inline
uint64_t
CalcTurnBackId
(
snowflake
*
flake
);
static
inline
uint64_t
GetSysCurrentTime
();
int
ncpu
;
uint16_t
spin
=
2048
;
uint32_t
pid
=
0
;
void
Config
(
snowflake
*
flake
)
void
Config
(
snowflake
*
flake
)
{
if
(
pid
==
0
)
{
...
...
@@ -132,7 +133,7 @@ void Config(snowflake* flake)
// }
// }
static
inline
uint64_t
NextOverCostId
(
snowflake
*
flake
)
static
inline
uint64_t
NextOverCostId
(
snowflake
*
flake
)
{
uint64_t
currentTimeTick
=
GetCurrentTimeTick
(
flake
);
if
(
currentTimeTick
>
flake
->
_LastTimeTick
)
...
...
@@ -169,7 +170,7 @@ static inline uint64_t NextOverCostId(snowflake* flake)
return
CalcId
(
flake
);
}
static
inline
uint64_t
NextNormalId
(
snowflake
*
flake
)
static
inline
uint64_t
NextNormalId
(
snowflake
*
flake
)
{
uint64_t
currentTimeTick
=
GetCurrentTimeTick
(
flake
);
if
(
currentTimeTick
<
flake
->
_LastTimeTick
)
...
...
@@ -221,39 +222,50 @@ static inline uint64_t GetSysCurrentTime()
gettimeofday
(
&
t
,
NULL
);
return
(
uint64_t
)(
t
.
tv_sec
*
1000
+
t
.
tv_usec
/
1000
);
#endif
}
static
inline
uint64_t
GetCurrentTimeTick
(
snowflake
*
flake
)
static
inline
uint64_t
GetCurrentTimeTick
(
snowflake
*
flake
)
{
return
GetSysCurrentTime
()
-
flake
->
BaseTime
;
}
static
inline
uint64_t
GetNextTimeTick
(
snowflake
*
flake
)
static
inline
uint64_t
GetNextTimeTick
(
snowflake
*
flake
)
{
uint64_t
tempTimeTicker
=
GetCurrentTimeTick
(
flake
);
while
(
tempTimeTicker
<=
flake
->
_LastTimeTick
)
struct
timespec
delay
;
delay
.
tv_sec
=
0
;
delay
.
tv_nsec
=
500000
;
while
(
1
)
{
tempTimeTicker
=
GetCurrentTimeTick
(
flake
);
if
(
tempTimeTicker
>
flake
->
_LastTimeTick
)
{
break
;
}
#ifdef WIN32
SwitchToThread
();
#else
nanosleep
(
&
delay
,
NULL
);
#endif
}
return
tempTimeTicker
;
}
static
inline
uint64_t
CalcId
(
snowflake
*
flake
)
static
inline
uint64_t
CalcId
(
snowflake
*
flake
)
{
uint64_t
result
=
(
flake
->
_LastTimeTick
<<
flake
->
_TimestampShift
)
+
(
flake
->
WorkerId
<<
flake
->
SeqBitLength
)
+
(
flake
->
_CurrentSeqNumber
);
flake
->
_CurrentSeqNumber
++
;
return
result
;
}
static
inline
uint64_t
CalcTurnBackId
(
snowflake
*
flake
)
static
inline
uint64_t
CalcTurnBackId
(
snowflake
*
flake
)
{
uint64_t
result
=
(
flake
->
_LastTimeTick
<<
flake
->
_TimestampShift
)
+
(
flake
->
WorkerId
<<
flake
->
SeqBitLength
)
+
(
flake
->
_TurnBackTimeTick
);
flake
->
_TurnBackTimeTick
--
;
return
result
;
}
static
inline
uint64_t
NextSonwId
(
snowflake
*
flake
)
static
inline
uint64_t
NextSonwId
(
snowflake
*
flake
)
{
uint64_t
currentTimeTick
=
GetCurrentTimeTick
(
flake
);
if
(
flake
->
_LastTimeTick
==
currentTimeTick
)
...
...
@@ -273,12 +285,12 @@ static inline uint64_t NextSonwId(snowflake* flake)
return
(
uint64_t
)((
currentTimeTick
<<
flake
->
_TimestampShift
)
|
(
flake
->
WorkerId
<<
flake
->
SeqBitLength
)
|
flake
->
_CurrentSeqNumber
);
}
static
inline
uint64_t
GetId
(
snowflake
*
flake
)
static
inline
uint64_t
GetId
(
snowflake
*
flake
)
{
return
flake
->
Method
==
1
?
(
flake
->
_IsOverCost
!=
0
?
NextOverCostId
(
flake
)
:
NextNormalId
(
flake
))
:
NextSonwId
(
flake
);
}
uint64_t
NextId
(
snowflake
*
flake
)
uint64_t
NextId
(
snowflake
*
flake
)
{
spin_lock
(
&
flake
->
_Lock
,
pid
);
uint64_t
id
=
GetId
(
flake
);
...
...
@@ -286,9 +298,9 @@ uint64_t NextId(snowflake* flake)
return
id
;
}
uint64_t
*
NextNumId
(
snowflake
*
flake
,
uint32_t
num
)
uint64_t
*
NextNumId
(
snowflake
*
flake
,
uint32_t
num
)
{
uint64_t
*
arr
=
(
uint64_t
*
)
malloc
(
sizeof
(
uint64_t
)
*
num
);
uint64_t
*
arr
=
(
uint64_t
*
)
malloc
(
sizeof
(
uint64_t
)
*
num
);
spin_lock
(
&
flake
->
_Lock
,
pid
);
uint32_t
i
;
for
(
i
=
0
;
i
<
num
;
i
++
)
...
...
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