Mercurial > hg > mercurial-crew-with-dirclash

comparison mercurial/revlog.py @ 5448:e038738714fd

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revlog: avoid large yields in group() Split large yields so that the downstream consumer (chunkbuffer) will avoid some pain when reading ahead.
author Matt Mackall <mpm@selenic.com>
date Thu, 11 Oct 2007 00:46:51 -0500
parents 64cf1c853674
children c728424d44c6
comparison
equal deleted inserted replaced
5447:56591846f819 5448:e038738714fd
1094 meta += mdiff.trivialdiffheader(len(d)) 1094 meta += mdiff.trivialdiffheader(len(d))
1095 else: 1095 else:
1096 d = self.revdiff(a, b) 1096 d = self.revdiff(a, b)
1097 yield changegroup.chunkheader(len(meta) + len(d)) 1097 yield changegroup.chunkheader(len(meta) + len(d))
1098 yield meta 1098 yield meta
1099 yield d 1099 if len(d) > 2**20:
1100 pos = 0
1101 while pos < len(d):
1102 pos2 = pos + 2 ** 18
1103 yield d[pos:pos2]
1104 pos = pos2
1105 else:
1106 yield d
1100 1107
1101 yield changegroup.closechunk() 1108 yield changegroup.closechunk()
1102 1109
1103 def addgroup(self, revs, linkmapper, transaction, unique=0): 1110 def addgroup(self, revs, linkmapper, transaction, unique=0):
1104 """ 1111 """