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http2: release request()'s "connect" event listener after it runs #21916

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ide commented Jul 21, 2018

The Http2Session#request() method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with once
instead of on as well.

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • commit message follows commit guidelines
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targos approved these changes Jul 21, 2018

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targos commented Jul 21, 2018

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trivikr commented Jul 22, 2018

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LGTM, could you add a unit test for this behavior?

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

@ide ide force-pushed the ide:http2-onconnect branch from 69d06f7 to 2e6649c Jul 28, 2018

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ide commented Jul 28, 2018

@mcollina Thanks for reviewing. I added a unit test that fails without this commit and passes with it.

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LGTM, good work!

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targos commented Jul 29, 2018

Landed in 2aca095 🎉

@targos targos closed this Jul 29, 2018

targos added a commit that referenced this pull request Jul 29, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: #21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

targos added a commit that referenced this pull request Jul 31, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: #21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

@targos targos referenced this pull request Jul 31, 2018

Merged

v10.8.0 proposal #22040

kjin added a commit to kjin/node that referenced this pull request Aug 23, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: nodejs#21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

kjin added a commit to kjin/node that referenced this pull request Sep 17, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: nodejs#21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

kjin added a commit to kjin/node that referenced this pull request Sep 19, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: nodejs#21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

kjin added a commit to kjin/node that referenced this pull request Sep 25, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: nodejs#21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

kjin added a commit to kjin/node that referenced this pull request Oct 16, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

PR-URL: nodejs#21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

BethGriggs added a commit to BethGriggs/node that referenced this pull request Oct 16, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

Backport-PR-URL: nodejs#22850
PR-URL: nodejs#21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

BethGriggs added a commit that referenced this pull request Oct 17, 2018

http2: release request()'s "connect" event listener after it runs
The `Http2Session#request()` method internally listens to the "connect"
event if the session has not yet established a connection so that the
actual request can be sent after the connection has been established.

This commit removes the event listener after it runs and carries out
the request and is no longer needed. In practice this shouldn't affect
the behavior of the session object since the "connect" event fires only
once anyway, but removing the listener releases its references. The
rest of this class subscribes to the "connect" event with `once`
instead of `on` as well.

Tested by adding a new test that ensures `Http2Session#request()` is
called before the connection is established, indicated by a "connect"
listener that is run. The test also ensures all "connect" listeners are
removed after the connection is established.

Backport-PR-URL: #22850
PR-URL: #21916
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

@BethGriggs BethGriggs referenced this pull request Oct 30, 2018

Merged

v8.13.0 proposal #23974

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