1# Copyright (c) 2005 The Regents of The University of Michigan
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright

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21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Nathan Binkert
28
29import os, popen2, re, sys
30
31class MyPOpen(object):
32 def __init__(self, cmd, input = None, output = None, bufsize = -1):
33 self.sts = -1
34
35 if input is None:
36 p2c_read, p2c_write = os.pipe()
37 self.tochild = os.fdopen(p2c_write, 'w', bufsize)
38 else:
39 p2c_write = None
40 if isinstance(input, file):
41 p2c_read = input.fileno()
42 elif isinstance(input, str):
43 input = file(input, 'r')
44 p2c_read = input.fileno()
45 elif isinstance(input, int):
46 p2c_read = input
47 else:
48 raise AttributeError
49
50 if output is None:
51 c2p_read, c2p_write = os.pipe()
52 self.fromchild = os.fdopen(c2p_read, 'r', bufsize)
53 else:
54 c2p_read = None
55 if isinstance(output, file):
56 c2p_write = output.fileno()
57 elif isinstance(output, str):
58 output = file(output, 'w')
59 c2p_write = output.fileno()
60 elif isinstance(output, int):
61 c2p_write = output
62 else:
63 raise AttributeError
64
65 self.pid = os.fork()
66 if self.pid == 0:
67 os.dup2(p2c_read, 0)
68 os.dup2(c2p_write, 1)
69 os.dup2(c2p_write, 2)
70 if isinstance(cmd, basestring):
71 cmd = ['/bin/sh', '-c', cmd]
72 if False:
73 for i in range(3, MAXFD):
74 try:
75 os.close(i)
76 except OSError:
77 pass
78 try:
79 os.execvp(cmd[0], cmd)
80 finally:
81 os._exit(1)
82
83 os.close(p2c_read)
84 os.close(c2p_write)
85
86 def poll(self):
87 if self.sts < 0:
88 pid, sts = os.waitpid(self.pid, os.WNOHANG)
89 if pid == self.pid:
90 self.sts = sts
91 return self.sts
92
93 def wait(self):
94 if self.sts < 0:
95 pid, sts = os.waitpid(self.pid, 0)
96 if pid == self.pid:
97 self.sts = sts
98 return self.sts
99
100class qsub:
101 def __init__(self):
102 self.hold = False
103 self.join = False
104 self.keep_stdout = False
105 self.keep_stderr = False
106 self.node_type = ''
107 self.mail_abort = False
108 self.mail_begin = False
109 self.mail_end = False
110 self.name = ''
111 self.stdout = ''
112 self.priority = 0
113 self.queue = ''
114 self.pbshost = ''
115 self.qsub = 'qsub'
116 self.env = {}
117
118 def build(self, script, args = []):
119 self.cmd = [ self.qsub ]
120
121 if self.env:
122 arg = '-v'
123 arg += ','.join([ '%s=%s' % i for i in self.env.iteritems() ])
124 self.cmd.append(arg)
125
126 if self.hold:
127 self.cmd.append('-h')
128
129 if len(self.stdout):
130 self.cmd.append('-olocalhost:' + self.stdout)
131
132 if self.keep_stdout and self.keep_stderr:
133 self.cmd.append('-koe')
134 elif self.keep_stdout:
135 self.cmd.append('-ko')
136 elif self.keep_stderr:
137 self.cmd.append('-ke')
138 else:
139 self.cmd.append('-kn')
140
141 if self.join:
142 self.cmd.append('-joe')
143
144 if len(self.node_type):
145 self.cmd.append('-lnodes=' + self.node_type)
146
147 if self.mail_abort or self.mail_begin or self.mail_end:
148 flags = ''
149 if self.mail_abort:
150 flags.append('a')
151 if self.mail_begin:
152 flags.append('b')
153 if self.mail_end:
154 flags.append('e')
155 if len(flags):
156 self.cmd.append('-m ' + flags)
157
158 if len(self.name):
159 self.cmd.append("-N%s" % self.name)
160
161 if self.priority != 0:
162 self.cmd.append('-p' + self.priority)
163
164 if len(self.queue):
165 self.cmd.append('-q' + self.queue)
166
167 self.cmd.extend(args)
168 self.script = script
169 self.command = ' '.join(self.cmd + [ self.script ])
170
171 def do(self):
172 pbs = MyPOpen(self.cmd + [ self.script ])
173 self.result = pbs.fromchild.read()
174 ec = pbs.wait()
175
176 if ec != 0 and self.pbshost:
177 cmd = ' '.join(self.cmd + [ '-' ])
178 cmd = [ 'ssh', '-x', self.pbshost, cmd ]
179 self.command = ' '.join(cmd)
180 ssh = MyPOpen(cmd, input = self.script)
181 self.result = ssh.fromchild.read()
182 ec = ssh.wait()
183
184 return ec