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MINOR: fd: Use a separate lock for logs instead of abusing the fd lock.

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Introduce a new spinlock, log_lock, and use it instead of abusing the FD lock.
This commit is contained in:
Olivier Houchard 2020-02-27 17:25:43 +01:00 committed by Olivier Houchard
parent 079f808741
commit 7fa5562190
1 changed files with 3 additions and 2 deletions
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5
src/fd.c
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@ -364,6 +364,7 @@ void updt_fd_polling(const int fd)
}
}
__decl_spinlock(log_lock);
/* Tries to send <npfx> parts from <prefix> followed by <nmsg> parts from <msg>
* optionally followed by a newline if <nl> is non-null, to file descriptor
* <fd>. The message is sent atomically using writev(). It may be truncated to
@ -421,9 +422,9 @@ ssize_t fd_write_frag_line(int fd, size_t maxlen, const struct ist pfx[], size_t
fcntl(fd, F_SETFL, O_NONBLOCK);
}
HA_SPIN_LOCK(FD_LOCK, &fdtab[fd].lock);
HA_SPIN_LOCK(OTHER_LOCK, &log_lock);
sent = writev(fd, iovec, vec);
HA_SPIN_UNLOCK(FD_LOCK, &fdtab[fd].lock);
HA_SPIN_UNLOCK(OTHER_LOCK, &log_lock);
/* sent > 0 if the message was delivered */
return sent;