Python create_and_start_event_loop Examples

Example #1

File: get_history.py Project: terracoin/electrum-trc

#!/usr/bin/env python3

import sys
import asyncio

from electrum_trc import bitcoin
from electrum_trc.network import Network
from electrum_trc.util import json_encode, print_msg, create_and_start_event_loop, log_exceptions

try:
    addr = sys.argv[1]
except Exception:
    print("usage: get_history <terracoin_address>")
    sys.exit(1)

loop, stopping_fut, loop_thread = create_and_start_event_loop()
network = Network()
network.start()


@log_exceptions
async def f():
    try:
        sh = bitcoin.address_to_scripthash(addr)
        hist = await network.get_history_for_scripthash(sh)
        print_msg(json_encode(hist))
    finally:
        stopping_fut.set_result(1)


asyncio.run_coroutine_threadsafe(f(), loop)

Example #2

File: watch_address.py Project: terracoin/electrum-trc

import sys
import asyncio

from electrum_trc.network import Network
from electrum_trc.util import print_msg, create_and_start_event_loop
from electrum_trc.synchronizer import SynchronizerBase

try:
    addr = sys.argv[1]
except Exception:
    print("usage: watch_address <terracoin_address>")
    sys.exit(1)

# start network
loop = create_and_start_event_loop()[0]
network = Network()
network.start()


class Notifier(SynchronizerBase):
    def __init__(self, network):
        SynchronizerBase.__init__(self, network)
        self.watched_addresses = set()
        self.watch_queue = asyncio.Queue()

    async def main(self):
        # resend existing subscriptions if we were restarted
        for addr in self.watched_addresses:
            await self._add_address(addr)
        # main loop