From ed05560dc2a71cfb14e01f2480a4bed60a08d5e3 Mon Sep 17 00:00:00 2001
From: Inso <insomniak.fr@gmail.com>
Date: Sun, 22 Nov 2015 13:56:23 +0100
Subject: [PATCH] Better handling of saving data
- Save data by chunck to not get MemoryError
- Save data to a buffer file before writting to the original file
---
src/cutecoin/core/app.py | 29 +++++++++++++++++++++--------
1 file changed, 21 insertions(+), 8 deletions(-)
diff --git a/src/cutecoin/core/app.py b/src/cutecoin/core/app.py
index f1ccc3de..a018dc02 100644
--- a/src/cutecoin/core/app.py
+++ b/src/cutecoin/core/app.py
@@ -364,10 +364,13 @@ class Application(QObject):
"""
identities_path = os.path.join(config.parameters['home'],
'__identities__')
- with open(identities_path, 'w')as outfile:
+ buffer_path = identities_path + ".buf"
+ with open(buffer_path, 'w') as outfile:
data = self.identities_registry.jsonify()
data['version'] = __version__
- json.dump(data, outfile, indent=4, sort_keys=True)
+ for chunk in json.JSONEncoder().iterencode(data):
+ outfile.write(chunk)
+ shutil.move(buffer_path, identities_path)
def save_wallet(self, account, wallet):
"""
@@ -382,10 +385,13 @@ class Application(QObject):
account.name, '__cache__'))
wallet_path = os.path.join(config.parameters['home'],
account.name, '__cache__', wallet.pubkey + "_wal")
- with open(wallet_path, 'w') as outfile:
+ buffer_path = wallet_path + ".buf"
+ with open(buffer_path, 'w') as outfile:
data = wallet.jsonify_caches()
data['version'] = __version__
- json.dump(data, outfile, indent=4, sort_keys=True)
+ for chunk in json.JSONEncoder().iterencode(data):
+ outfile.write(chunk)
+ shutil.move(buffer_path, wallet_path)
def save_cache(self, account):
"""
@@ -408,17 +414,24 @@ class Application(QObject):
network_path = os.path.join(config.parameters['home'],
account.name, '__cache__',
community.currency + '_network')
+ buffer_path = network_path + ".buf"
- with open(network_path, 'w') as outfile:
+ with open(buffer_path, 'w') as outfile:
data = dict()
data['network'] = community.network.jsonify()
data['version'] = __version__
- json.dump(data, outfile, indent=4, sort_keys=True)
+ for chunk in json.JSONEncoder().iterencode(data):
+ outfile.write(chunk)
+ shutil.move(buffer_path, network_path)
- with open(bma_path, 'w') as outfile:
+ buffer_path = bma_path + ".buf"
+
+ with open(buffer_path, 'w') as outfile:
data['cache'] = community.bma_access.jsonify()
data['version'] = __version__
- json.dump(data, outfile, indent=4, sort_keys=True)
+ for chunk in json.JSONEncoder().iterencode(data):
+ outfile.write(chunk)
+ shutil.move(buffer_path, bma_path)
def import_account(self, file, name):
"""
--
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