Mercurial > hg
changeset 23498:ac910b1f5658
obsstore: prefetch struct.calcsize
This function is widely used and worth but be at module level. No specific
performance boost is visible, but this is more consistent.
| author | Pierre-Yves David <pierre-yves.david@fb.com> |
|---|---|
| date | Wed, 26 Nov 2014 23:21:20 -0800 |
| parents | 5817f71c2336 |
| children | b46876c94a93 |
| files | mercurial/obsolete.py |
| diffstat | 1 files changed, 7 insertions(+), 6 deletions(-) [+] |
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--- a/mercurial/obsolete.py Wed Nov 26 16:58:31 2014 -0800 +++ b/mercurial/obsolete.py Wed Nov 26 23:21:20 2014 -0800 @@ -74,6 +74,7 @@ _pack = struct.pack _unpack = struct.unpack +_calcsize = struct.calcsize _SEEK_END = 2 # os.SEEK_END was introduced in Python 2.5 @@ -142,8 +143,8 @@ _fm0version = 0 _fm0fixed = '>BIB20s' _fm0node = '20s' -_fm0fsize = struct.calcsize(_fm0fixed) -_fm0fnodesize = struct.calcsize(_fm0node) +_fm0fsize = _calcsize(_fm0fixed) +_fm0fnodesize = _calcsize(_fm0node) def _fm0readmarkers(data, off=0): # Loop on markers @@ -275,12 +276,12 @@ _fm1fixed = '>IdhHBBB20s' _fm1nodesha1 = '20s' _fm1nodesha256 = '32s' -_fm1fsize = struct.calcsize(_fm1fixed) +_fm1fsize = _calcsize(_fm1fixed) _fm1parentnone = 3 _fm1parentshift = 14 _fm1parentmask = (_fm1parentnone << _fm1parentshift) _fm1metapair = 'BB' -_fm1metapairsize = struct.calcsize('BB') +_fm1metapairsize = _calcsize('BB') def _fm1readmarkers(data, off=0): # Loop on markers @@ -299,7 +300,7 @@ _fm1node = _fm1nodesha1 if flags & usingsha256: _fm1node = _fm1nodesha256 - fnodesize = struct.calcsize(_fm1node) + fnodesize = _calcsize(_fm1node) # read replacement sucs = () if numsuc: @@ -358,7 +359,7 @@ data.extend(sucs) if parents is not None: data.extend(parents) - totalsize = struct.calcsize(format) + totalsize = _calcsize(format) for key, value in metadata: lk = len(key) lv = len(value)