net: Track state of setKeepAlive and prevent unnecessary system calls #31551
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jasnell
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The state of .setKeepAlive() is now tracked and code will prevent repeated system calls to setsockopt() when the value has already been set to the desired value for the socket.
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ronag
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| if (msecs != null && typeof msecs !== 'number') | ||
| throw new ERR_INVALID_ARG_TYPE('msecs', 'number', msecs); | ||
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| if (msecs === 0) { |
ronag
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Mar 2, 2020
| if (!this._handle) { | ||
| this.once('connect', () => this.setKeepAlive(setting, msecs)); | ||
| return this; | ||
| } | ||
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| if (this._handle.setKeepAlive) | ||
| if (this._handle.setKeepAlive && | ||
| this[kSetKeepAlive] !== setting) { |
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Doesn't this need to include the msec setting as well?
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This issue/PR was marked as stalled, it will be automatically closed in 30 days. If it should remain open, please leave a comment explaining why it should remain open. |
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Let's leave this open until someone contributes a test or decides to merge without. |
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The state of .setKeepAlive() is now tracked and code will prevent repeated
system calls to setsockopt() when the value has already been set to the
desired value for the socket.
make -j4 test(UNIX), orvcbuild test(Windows) passesRationale
The reason for this change is that if keep alive is set for a HTTP Agent, there will
be repeated calls to
net.Socket.setKeepAlive()which in turn will cause many calls tosetsockopt() that are unnecessary since the socket has already been set to
send keep alive packets.
This is much like #31543