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ruanhaishen
redis
Commits
a8c912ea
Commit
a8c912ea
authored
Jan 13, 2020
by
antirez
Browse files
A few comments about main thread serving I/O as well.
Related to #6110.
parent
24896427
Changes
1
Hide whitespace changes
Inline
Side-by-side
src/networking.c
View file @
a8c912ea
...
@@ -2656,6 +2656,10 @@ pthread_mutex_t io_threads_mutex[IO_THREADS_MAX_NUM];
...
@@ -2656,6 +2656,10 @@ pthread_mutex_t io_threads_mutex[IO_THREADS_MAX_NUM];
_Atomic
unsigned
long
io_threads_pending
[
IO_THREADS_MAX_NUM
];
_Atomic
unsigned
long
io_threads_pending
[
IO_THREADS_MAX_NUM
];
int
io_threads_active
;
/* Are the threads currently spinning waiting I/O? */
int
io_threads_active
;
/* Are the threads currently spinning waiting I/O? */
int
io_threads_op
;
/* IO_THREADS_OP_WRITE or IO_THREADS_OP_READ. */
int
io_threads_op
;
/* IO_THREADS_OP_WRITE or IO_THREADS_OP_READ. */
/* This is the list of clients each thread will serve when threaded I/O is
* used. We spawn N threads, and the N+1 list is used for the clients that
* are processed by the main thread itself (this is why ther is "+1"). */
list
*
io_threads_list
[
IO_THREADS_MAX_NUM
+
1
];
list
*
io_threads_list
[
IO_THREADS_MAX_NUM
+
1
];
void
*
IOThreadMain
(
void
*
myid
)
{
void
*
IOThreadMain
(
void
*
myid
)
{
...
@@ -2729,7 +2733,7 @@ void initThreadedIO(void) {
...
@@ -2729,7 +2733,7 @@ void initThreadedIO(void) {
}
}
io_threads
[
i
]
=
tid
;
io_threads
[
i
]
=
tid
;
}
}
io_threads_list
[
server
.
io_threads_num
]
=
listCreate
();
io_threads_list
[
server
.
io_threads_num
]
=
listCreate
();
/* For main thread */
}
}
void
startThreadedIO
(
void
)
{
void
startThreadedIO
(
void
)
{
...
@@ -2814,6 +2818,7 @@ int handleClientsWithPendingWritesUsingThreads(void) {
...
@@ -2814,6 +2818,7 @@ int handleClientsWithPendingWritesUsingThreads(void) {
io_threads_pending
[
j
]
=
count
;
io_threads_pending
[
j
]
=
count
;
}
}
/* Also use the main thread to process a slide of clients. */
listRewind
(
io_threads_list
[
server
.
io_threads_num
],
&
li
);
listRewind
(
io_threads_list
[
server
.
io_threads_num
],
&
li
);
while
((
ln
=
listNext
(
&
li
)))
{
while
((
ln
=
listNext
(
&
li
)))
{
client
*
c
=
listNodeValue
(
ln
);
client
*
c
=
listNodeValue
(
ln
);
...
@@ -2898,6 +2903,7 @@ int handleClientsWithPendingReadsUsingThreads(void) {
...
@@ -2898,6 +2903,7 @@ int handleClientsWithPendingReadsUsingThreads(void) {
io_threads_pending
[
j
]
=
count
;
io_threads_pending
[
j
]
=
count
;
}
}
/* Also use the main thread to process a slide of clients. */
listRewind
(
io_threads_list
[
server
.
io_threads_num
],
&
li
);
listRewind
(
io_threads_list
[
server
.
io_threads_num
],
&
li
);
while
((
ln
=
listNext
(
&
li
)))
{
while
((
ln
=
listNext
(
&
li
)))
{
client
*
c
=
listNodeValue
(
ln
);
client
*
c
=
listNodeValue
(
ln
);
...
...
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