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bitbake: prserv: Add read-only mode

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[YOCTO #13659]

(Bitbake rev: 44287430b9804fcbf2440f85a2424792140e4dc9)

Signed-off-by: Paul Barker <pbarker@konsulko.com>
[updated for asyncrpc changes]
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Paul Barker
2021-08-19 12:46:44 -04:00
committed by Richard Purdie
parent fb3b05fe8d
commit 295b75cf1c
4 changed files with 86 additions and 32 deletions
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40
bitbake/lib/prserv/serv.py
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@@ -18,14 +18,16 @@ PIDPREFIX = "/tmp/PRServer_%s_%s.pid"
singleton = None
class PRServerClient(bb.asyncrpc.AsyncServerConnection):
def __init__(self, reader, writer, table):
def __init__(self, reader, writer, table, read_only):
super().__init__(reader, writer, 'PRSERVICE', logger)
self.handlers.update({
'get-pr': self.handle_get_pr,
'import-one': self.handle_import_one,
'export': self.handle_export,
'is-readonly': self.handle_is_readonly,
})
self.table = table
self.read_only = read_only
def validate_proto_version(self):
return (self.proto_version == (1, 0))
@@ -56,16 +58,17 @@ class PRServerClient(bb.asyncrpc.AsyncServerConnection):
self.write_message(response)
async def handle_import_one(self, request):
version = request['version']
pkgarch = request['pkgarch']
checksum = request['checksum']
value = request['value']
response = None
if not self.read_only:
version = request['version']
pkgarch = request['pkgarch']
checksum = request['checksum']
value = request['value']
value = self.table.importone(version, pkgarch, checksum, value)
if value is not None:
response = {'value': value}
value = self.table.importone(version, pkgarch, checksum, value)
if value is not None:
response = {'value': value}
else:
response = None
self.write_message(response)
async def handle_export(self, request):
@@ -83,20 +86,25 @@ class PRServerClient(bb.asyncrpc.AsyncServerConnection):
response = {'metainfo': metainfo, 'datainfo': datainfo}
self.write_message(response)
async def handle_is_readonly(self, request):
response = {'readonly': self.read_only}
self.write_message(response)
class PRServer(bb.asyncrpc.AsyncServer):
def __init__(self, dbfile):
def __init__(self, dbfile, read_only=False):
super().__init__(logger)
self.dbfile = dbfile
self.table = None
self.read_only = read_only
def accept_client(self, reader, writer):
return PRServerClient(reader, writer, self.table)
return PRServerClient(reader, writer, self.table, self.read_only)
def _serve_forever(self):
self.db = prserv.db.PRData(self.dbfile)
self.db = prserv.db.PRData(self.dbfile, read_only=self.read_only)
self.table = self.db["PRMAIN"]
logger.debug("Started PRServer with DBfile: %s, Address: %s, PID: %s" %
logger.info("Started PRServer with DBfile: %s, Address: %s, PID: %s" %
(self.dbfile, self.address, str(os.getpid())))
super()._serve_forever()
@@ -194,7 +202,7 @@ def run_as_daemon(func, pidfile, logfile):
os.remove(pidfile)
os._exit(0)
def start_daemon(dbfile, host, port, logfile):
def start_daemon(dbfile, host, port, logfile, read_only=False):
ip = socket.gethostbyname(host)
pidfile = PIDPREFIX % (ip, port)
try:
@@ -210,7 +218,7 @@ def start_daemon(dbfile, host, port, logfile):
dbfile = os.path.abspath(dbfile)
def daemon_main():
server = PRServer(dbfile)
server = PRServer(dbfile, read_only=read_only)
server.start_tcp_server(host, port)
server.serve_forever()