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CLEANUP: fd: remove FD_POLL_DATA and FD_POLL_STICKY

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The former was not used and the second was used only as a positive mask
of the flags to keep instead of having the flags that are updated. Both
were removed in favor of a new FD_POLL_UPDT_MASK that only mentions the
updated flags. This will ease merging of state and ev later.
This commit is contained in:
Willy Tarreau 2021-04-06 16:48:02 +02:00
parent 26754901e9
commit fc0cdfb9b7
2 changed files with 3 additions and 4 deletions
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3
include/haproxy/fd-t.h
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@ -42,8 +42,7 @@ enum {
#define FD_POLL_ERR 0x08
#define FD_POLL_HUP 0x10
#define FD_POLL_DATA (FD_POLL_IN | FD_POLL_OUT)
#define FD_POLL_STICKY (FD_POLL_ERR | FD_POLL_HUP)
#define FD_POLL_UPDT_MASK (FD_POLL_IN | FD_POLL_PRI | FD_POLL_OUT)
/* FD_EV_* are the values used in fdtab[].state to define the polling states in
* each direction. Most of them are manipulated using test-and-set operations

4
include/haproxy/fd.h
View File

@ -386,12 +386,12 @@ static inline void fd_update_events(int fd, unsigned char evts)
}
old = fdtab[fd].ev;
new = (old & FD_POLL_STICKY) | new_flags;
new = (old & ~FD_POLL_UPDT_MASK) | new_flags;
if (unlikely(locked)) {
/* Locked FDs (those with more than 2 threads) are atomically updated */
while (unlikely(new != old && !_HA_ATOMIC_CAS(&fdtab[fd].ev, &old, new)))
new = (old & FD_POLL_STICKY) | new_flags;
new = (old & ~FD_POLL_UPDT_MASK) | new_flags;
} else {
if (new != old)
fdtab[fd].ev = new;