47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
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#!/usr/bin/python
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from select import select
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from subprocess import Popen, PIPE, STDOUT
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import sys
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# TODO: byte-by-byte I/O is painful. figure out better buffering
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# that doesn't break everything
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# currently line-buffered
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def run(args):
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#return Popen(args, stdin=PIPE, stdout=PIPE, stderr=STDOUT, bufsize=1, universal_newlines=True)
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return Popen(args, stdin=PIPE, stdout=PIPE, stderr=STDOUT, bufsize=0)
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def main():
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args = sys.argv[1:]
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if len(args) < 2:
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print('usage: %s ROM SHELL')
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print('')
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print('execute the given uxn terminal program (ROM)')
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print('and start a shell process (SHELL).')
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sys.exit(1)
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rom = args[0]
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shell = args[1]
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term = run(['uxnemu', rom])
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term_out = term.stdout.fileno()
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shell = run([shell])
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shell_out = shell.stdout.fileno()
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while shell.poll() is None and term.poll() is None:
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# wait 100ms to see if anything is ready to write
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ns, _, _ = select([term_out, shell_out], [], [], 0.1)
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for n in ns:
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if n == term_out:
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shell.stdin.write(term.stdout.read(1))
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shell.stdin.flush()
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elif n == shell_out:
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term.stdin.write(shell.stdout.read(1))
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term.stdin.flush()
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else:
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raise Exception('unexpected fileno: %d (expected %d or %d)' % (n, term_out, shell_out))
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if __name__ == "__main__":
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main()
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