Mercurial > hg
view tests/test-hgweb-no-path-info.t @ 30418:1156ec81f709
util: improve iterfile so it chooses code path wisely
We have performance concerns on "iterfile" as it is 4X slower on normal
files. While modern systems have the nice property that reading a "fast"
(on-disk) file cannot be interrupted and should be made use of.
This patch dumps the related knowledge in comments. And "iterfile" chooses
code paths wisely:
1. If it's CPython 3, or PyPY, use the fast path.
2. If fp is a normal file, use the fast path.
3. If fp is not a normal file and CPython version >= 2.7.4, use the same
workaround (4x slower) as before.
4. If fp is not a normal file and CPython version < 2.7.4, use another
workaround (2x slower but may block longer then necessary) which
basically re-invents the buffer + readline logic in Python.
This will give us good confidence on both correctness and performance
dealing with EINTR in iterfile(fp) for all known supported Python versions.
author | Jun Wu <quark@fb.com> |
---|---|
date | Tue, 15 Nov 2016 20:25:51 +0000 |
parents | fe7158fced4b |
children | 636cf3f7620d |
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This tests if hgweb and hgwebdir still work if the REQUEST_URI variable is no longer passed with the request. Instead, SCRIPT_NAME and PATH_INFO should be used from d74fc8dec2b4 onward to route the request. $ hg init repo $ cd repo $ echo foo > bar $ hg add bar $ hg commit -m "test" $ hg tip changeset: 0:61c9426e69fe tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: test $ cat > request.py <<EOF > from __future__ import absolute_import > import os > import sys > from mercurial.hgweb import ( > hgweb, > hgwebdir, > ) > from mercurial import ( > util, > ) > stringio = util.stringio > > errors = stringio() > input = stringio() > > def startrsp(status, headers): > print '---- STATUS' > print status > print '---- HEADERS' > print [i for i in headers if i[0] != 'ETag'] > print '---- DATA' > return output.write > > env = { > 'wsgi.version': (1, 0), > 'wsgi.url_scheme': 'http', > 'wsgi.errors': errors, > 'wsgi.input': input, > 'wsgi.multithread': False, > 'wsgi.multiprocess': False, > 'wsgi.run_once': False, > 'REQUEST_METHOD': 'GET', > 'PATH_INFO': '/', > 'SCRIPT_NAME': '', > 'SERVER_NAME': '127.0.0.1', > 'SERVER_PORT': os.environ['HGPORT'], > 'SERVER_PROTOCOL': 'HTTP/1.0' > } > > def process(app): > content = app(env, startrsp) > sys.stdout.write(output.getvalue()) > sys.stdout.write(''.join(content)) > getattr(content, 'close', lambda : None)() > print '---- ERRORS' > print errors.getvalue() > > output = stringio() > env['QUERY_STRING'] = 'style=atom' > process(hgweb('.', name='repo')) > > output = stringio() > env['QUERY_STRING'] = 'style=raw' > process(hgwebdir({'repo': '.'})) > EOF $ python request.py ---- STATUS 200 Script output follows ---- HEADERS [('Content-Type', 'application/atom+xml; charset=ascii')] ---- DATA <?xml version="1.0" encoding="ascii"?> <feed xmlns="http://www.w3.org/2005/Atom"> <!-- Changelog --> <id>http://127.0.0.1:$HGPORT/</id> (glob) <link rel="self" href="http://127.0.0.1:$HGPORT/atom-log"/> (glob) <link rel="alternate" href="http://127.0.0.1:$HGPORT/"/> (glob) <title>repo Changelog</title> <updated>1970-01-01T00:00:00+00:00</updated> <entry> <title>[default] test</title> <id>http://127.0.0.1:$HGPORT/#changeset-61c9426e69fef294feed5e2bbfc97d39944a5b1c</id> (glob) <link href="http://127.0.0.1:$HGPORT/rev/61c9426e69fe"/> (glob) <author> <name>test</name> <email>test</email> </author> <updated>1970-01-01T00:00:00+00:00</updated> <published>1970-01-01T00:00:00+00:00</published> <content type="xhtml"> <table xmlns="http://www.w3.org/1999/xhtml"> <tr> <th style="text-align:left;">changeset</th> <td>61c9426e69fe</td> </tr> <tr> <th style="text-align:left;">branch</th> <td>default</td> </tr> <tr> <th style="text-align:left;">bookmark</th> <td></td> </tr> <tr> <th style="text-align:left;">tag</th> <td>tip</td> </tr> <tr> <th style="text-align:left;">user</th> <td>test</td> </tr> <tr> <th style="text-align:left;vertical-align:top;">description</th> <td>test</td> </tr> <tr> <th style="text-align:left;vertical-align:top;">files</th> <td>bar<br /></td> </tr> </table> </content> </entry> </feed> ---- ERRORS ---- STATUS 200 Script output follows ---- HEADERS [('Content-Type', 'text/plain; charset=ascii')] ---- DATA /repo/ ---- ERRORS $ cd ..