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sort pending headers before they get processed

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This commit is contained in:
ThomasV 2012-10-25 22:49:01 +02:00
parent 8b865983c6
commit 46eabd1dab
1 changed files with 14 additions and 5 deletions
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19
lib/verifier.py
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@ -49,6 +49,7 @@ class WalletVerifier(threading.Thread):
requested_merkle = []
requested_chunks = []
requested_headers = []
pending_headers_changed = False
# subscribe to block headers
self.interface.send([ ('blockchain.headers.subscribe',[])], 'verifier')
@ -106,17 +107,24 @@ class WalletVerifier(threading.Thread):
elif method == 'blockchain.headers.subscribe':
self.height = result.get('block_height')
self.pending_headers.append(result)
pending_headers_changed = True
elif method == 'blockchain.block.get_header':
height = result.get('block_height')
requested_headers.remove(height)
self.pending_headers.append(result)
pending_headers_changed = True
# process pending headers
# todo: sort them first
for header in self.pending_headers:
self.verify_header(header)
self.pending_headers = []
if pending_headers_changed:
self.pending_headers.sort(key=lambda x: x.get('block_height'))
print "pending headers", map(lambda x: x.get('block_height'), self.pending_headers)
for header in self.pending_headers:
if self.verify_header(header):
self.pending_headers.remove(header)
else:
break
pending_headers_changed = False
@ -173,7 +181,7 @@ class WalletVerifier(threading.Thread):
prev_header = self.read_header(height -1)
if not prev_header:
raise "no previous header", height
print "no previous header", height
return
#prev_hash = prev_header.get('block_height')
@ -195,6 +203,7 @@ class WalletVerifier(threading.Thread):
if ok:
self.save_header(header)
print "verify header: ok", height
return True