|
7 | 7 |
|
8 | 8 | import errno |
9 | 9 | import os |
| 10 | +import subprocess |
10 | 11 | import sys |
11 | 12 | import time |
12 | 13 |
|
13 | 14 | from lib.core.common import dataToStdout |
14 | 15 | from lib.core.settings import IS_WIN |
15 | 16 |
|
16 | | -if not IS_WIN: |
| 17 | +if IS_WIN: |
| 18 | + try: |
| 19 | + from win32file import ReadFile, WriteFile |
| 20 | + from win32pipe import PeekNamedPipe |
| 21 | + except ImportError: |
| 22 | + pass |
| 23 | + import msvcrt |
| 24 | +else: |
| 25 | + import select |
17 | 26 | import fcntl |
18 | 27 |
|
19 | 28 | if (sys.hexversion >> 16) >= 0x202: |
@@ -61,30 +70,132 @@ def blockingWriteToFD(fd, data): |
61 | 70 |
|
62 | 71 | break |
63 | 72 |
|
64 | | -def setNonBlocking(fd): |
65 | | - """ |
66 | | - Make a file descriptor non-blocking |
67 | | - """ |
68 | | - |
69 | | - if IS_WIN is not True: |
70 | | - flags = fcntl.fcntl(fd, FCNTL.F_GETFL) |
71 | | - flags = flags | os.O_NONBLOCK |
72 | | - fcntl.fcntl(fd, FCNTL.F_SETFL, flags) |
73 | | - |
74 | | -def pollProcess(process, suppress_errors=False): |
75 | | - while True: |
76 | | - dataToStdout(".") |
77 | | - time.sleep(1) |
| 73 | +# the following code is taken from http://code.activestate.com/recipes/440554-module-to-allow-asynchronous-subprocess-use-on-win/ |
| 74 | +class Popen(subprocess.Popen): |
| 75 | + def recv(self, maxsize=None): |
| 76 | + return self._recv('stdout', maxsize) |
| 77 | + |
| 78 | + def recv_err(self, maxsize=None): |
| 79 | + return self._recv('stderr', maxsize) |
| 80 | + |
| 81 | + def send_recv(self, input='', maxsize=None): |
| 82 | + return self.send(input), self.recv(maxsize), self.recv_err(maxsize) |
| 83 | + |
| 84 | + def get_conn_maxsize(self, which, maxsize): |
| 85 | + if maxsize is None: |
| 86 | + maxsize = 1024 |
| 87 | + elif maxsize < 1: |
| 88 | + maxsize = 1 |
| 89 | + return getattr(self, which), maxsize |
| 90 | + |
| 91 | + def _close(self, which): |
| 92 | + getattr(self, which).close() |
| 93 | + setattr(self, which, None) |
| 94 | + |
| 95 | + if subprocess.mswindows: |
| 96 | + def send(self, input): |
| 97 | + if not self.stdin: |
| 98 | + return None |
| 99 | + |
| 100 | + try: |
| 101 | + x = msvcrt.get_osfhandle(self.stdin.fileno()) |
| 102 | + (errCode, written) = WriteFile(x, input) |
| 103 | + except ValueError: |
| 104 | + return self._close('stdin') |
| 105 | + except (subprocess.pywintypes.error, Exception), why: |
| 106 | + if why[0] in (109, errno.ESHUTDOWN): |
| 107 | + return self._close('stdin') |
| 108 | + raise |
78 | 109 |
|
79 | | - returncode = process.poll() |
| 110 | + return written |
| 111 | + |
| 112 | + def _recv(self, which, maxsize): |
| 113 | + conn, maxsize = self.get_conn_maxsize(which, maxsize) |
| 114 | + if conn is None: |
| 115 | + return None |
| 116 | + |
| 117 | + try: |
| 118 | + x = msvcrt.get_osfhandle(conn.fileno()) |
| 119 | + (read, nAvail, nMessage) = PeekNamedPipe(x, 0) |
| 120 | + if maxsize < nAvail: |
| 121 | + nAvail = maxsize |
| 122 | + if nAvail > 0: |
| 123 | + (errCode, read) = ReadFile(x, nAvail, None) |
| 124 | + except ValueError: |
| 125 | + return self._close(which) |
| 126 | + except (subprocess.pywintypes.error, Exception), why: |
| 127 | + if why[0] in (109, errno.ESHUTDOWN): |
| 128 | + return self._close(which) |
| 129 | + raise |
80 | 130 |
|
81 | | - if returncode is not None: |
82 | | - if not suppress_errors: |
83 | | - if returncode == 0: |
84 | | - dataToStdout(" done\n") |
85 | | - elif returncode < 0: |
86 | | - dataToStdout(" process terminated by signal %d\n" % returncode) |
87 | | - elif returncode > 0: |
88 | | - dataToStdout(" quit unexpectedly with return code %d\n" % returncode) |
| 131 | + if self.universal_newlines: |
| 132 | + read = self._translate_newlines(read) |
| 133 | + return read |
| 134 | + else: |
| 135 | + def send(self, input): |
| 136 | + if not self.stdin: |
| 137 | + return None |
| 138 | + |
| 139 | + if not select.select([], [self.stdin], [], 0)[1]: |
| 140 | + return 0 |
| 141 | + |
| 142 | + try: |
| 143 | + written = os.write(self.stdin.fileno(), input) |
| 144 | + except OSError, why: |
| 145 | + if why[0] == errno.EPIPE: #broken pipe |
| 146 | + return self._close('stdin') |
| 147 | + raise |
89 | 148 |
|
| 149 | + return written |
| 150 | + |
| 151 | + def _recv(self, which, maxsize): |
| 152 | + conn, maxsize = self.get_conn_maxsize(which, maxsize) |
| 153 | + if conn is None: |
| 154 | + return None |
| 155 | + |
| 156 | + flags = fcntl.fcntl(conn, fcntl.F_GETFL) |
| 157 | + if not conn.closed: |
| 158 | + fcntl.fcntl(conn, fcntl.F_SETFL, flags| os.O_NONBLOCK) |
| 159 | + |
| 160 | + try: |
| 161 | + if not select.select([conn], [], [], 0)[0]: |
| 162 | + return '' |
| 163 | + |
| 164 | + r = conn.read(maxsize) |
| 165 | + if not r: |
| 166 | + return self._close(which) |
| 167 | + |
| 168 | + if self.universal_newlines: |
| 169 | + r = self._translate_newlines(r) |
| 170 | + return r |
| 171 | + finally: |
| 172 | + if not conn.closed: |
| 173 | + fcntl.fcntl(conn, fcntl.F_SETFL, flags) |
| 174 | + |
| 175 | +def recv_some(p, t=.1, e=1, tr=5, stderr=0): |
| 176 | + if tr < 1: |
| 177 | + tr = 1 |
| 178 | + x = time.time()+t |
| 179 | + y = [] |
| 180 | + r = '' |
| 181 | + if stderr: |
| 182 | + pr = p.recv_err |
| 183 | + else: |
| 184 | + pr = p.recv |
| 185 | + while time.time() < x or r: |
| 186 | + r = pr() |
| 187 | + if r is None: |
90 | 188 | break |
| 189 | + elif r: |
| 190 | + y.append(r) |
| 191 | + else: |
| 192 | + time.sleep(max((x-time.time())/tr, 0)) |
| 193 | + return ''.join(y) |
| 194 | + |
| 195 | +def send_all(p, data): |
| 196 | + if not data: |
| 197 | + return |
| 198 | + |
| 199 | + while len(data): |
| 200 | + sent = p.send(data) |
| 201 | + data = buffer(data, sent) |
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