1 | #----------------------------------# |
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2 | # -- Author: V.Garonne |
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3 | # -- Date: 08/25/2006 |
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4 | # -- Name: tbroadcast |
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5 | # -- Description: mainc class |
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6 | #----------------------------------# |
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7 | |
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8 | import os |
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9 | import sys |
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10 | import time |
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11 | import string |
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12 | import random |
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13 | import commands |
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14 | |
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15 | from threadpool import WorkRequest |
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16 | from threadpool import ThreadPool |
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17 | from threadpool import NoResultsPending |
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18 | from threadpool import NoWorkersAvailable |
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19 | from threadpool import makeRequests |
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20 | from executer import exeCommand |
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21 | |
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22 | class Scheduler: |
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23 | |
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24 | def __init__(self, num_worker=20): |
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25 | self.pool = ThreadPool(num_worker) |
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26 | self.packages = {} |
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27 | self.instanciate_packages () |
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28 | |
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29 | def instanciate_packages(self): |
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30 | # We create the schedule of the work units |
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31 | cmd = 'cmt show uses' |
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32 | status, output = commands.getstatusoutput (cmd) |
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33 | if status != 0: |
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34 | print output |
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35 | sys.exit(-1) |
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36 | lines = string.split(output, '\n') |
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37 | current_package = self.get_current_package() |
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38 | self.packages [current_package] = {'version': '*', 'dependencies': list(), 'status': 'waiting', 'path':os.getcwd()} |
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39 | for line in lines: |
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40 | if line [0] == '#' and line[:5] != "#CMT>" and line not in ['# Selection :','#']: |
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41 | name = string.split (line)[2] |
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42 | version = string.split (line)[3] |
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43 | if name not in self.packages[current_package]['dependencies']: |
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44 | self.packages[current_package]['dependencies'].append (name) |
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45 | if not self.packages.has_key (name): |
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46 | self.packages [name] = {'version': version, 'dependencies': list(), 'status': 'waiting', 'path':self.get_package_path(name)} |
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47 | found = False |
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48 | for ligne in lines: |
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49 | if ligne [0] == '#' and ligne[:5] != "#CMT>" and ligne not in ['# Selection :','#']: |
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50 | if found: |
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51 | if level < string.find(ligne, 'use'): |
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52 | if string.split (ligne)[2] not in self.packages[name]['dependencies']: |
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53 | self.packages[name]['dependencies'].append (string.split (ligne)[2]) |
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54 | else: |
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55 | found = False |
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56 | if name == string.split (ligne)[2]: |
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57 | level = string.find(ligne, 'use') |
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58 | found = True |
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59 | |
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60 | def get_current_package(self): |
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61 | cmd = 'cmt show macro package' |
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62 | status, output = commands.getstatusoutput (cmd) |
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63 | if status != 0: |
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64 | print output |
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65 | sys.exit(-1) |
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66 | lines = string.split(output, '\n') |
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67 | for line in lines: |
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68 | if line [0] != '#': |
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69 | start = string.find(line,"'") |
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70 | end = string.find(line[start+1:len(line)],"'") |
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71 | return line [start+1:start+end+1] |
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72 | |
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73 | def get_work_area_path (self, name): |
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74 | return self.packages [name]['path'] |
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75 | |
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76 | def get_package_path (self, name): |
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77 | cmd = 'cmt -use='+name+' run pwd' |
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78 | status, output = commands.getstatusoutput (cmd) |
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79 | if status != 0: |
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80 | print output |
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81 | sys.exit(-1) |
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82 | lines = string.split(output, '\n') |
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83 | for line in lines: |
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84 | if line [0] != '#': |
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85 | return line |
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86 | |
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87 | def print_dependencies(self): |
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88 | print '# ------------------------' |
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89 | print '# package --> dependencies' |
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90 | print '# ------------------------' |
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91 | for key in self.packages.keys(): |
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92 | print key, '-->', self.packages[key] ['dependencies'],',', self.packages[key] ['status'] |
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93 | |
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94 | def is_work_unit_waiting (self, name): |
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95 | return self.packages[name] ['status'] == 'waiting' |
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96 | |
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97 | def set_work_unit_status (self, name, status): |
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98 | self.packages[name] ['status'] = status |
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99 | |
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100 | def get_dependencies (self, name): |
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101 | return self.packages[name] ['dependencies'] |
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102 | |
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103 | def get_next_work_units (self): |
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104 | result = list () |
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105 | for key in self.packages.keys(): |
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106 | if len(self.get_dependencies (key)) == 0 and self.is_work_unit_waiting(key) : |
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107 | result.append(key) |
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108 | return result |
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109 | |
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110 | def suppress_work_unit (self, name): |
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111 | print '# remove', name, 'from schedule' |
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112 | for key in self.packages.keys(): |
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113 | if name in self.packages[key]['dependencies']: |
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114 | self.packages[key]['dependencies'].remove(name) |
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115 | |
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116 | def add_work_unit (self, name, cmd): |
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117 | if self.is_work_unit_waiting (name): |
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118 | # we create requests |
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119 | arg = {'cmd': cmd , 'package':name} |
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120 | req = WorkRequest(self.do_execute, [arg] , None, callback=self.result_callback, exc_callback=self.handle_exception) |
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121 | # then we put the work request in the queue... |
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122 | self.set_work_unit_status (name, 'queued') |
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123 | self.pool.putRequest(req) |
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124 | #print "# Work request #%s added on %s." % (req.requestID, str(arg['package'])) |
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125 | |
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126 | def execute (self, command): |
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127 | self.print_dependencies () |
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128 | packages = self.get_next_work_units() |
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129 | if len(packages) !=0: |
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130 | print '\n# Execute parallel actions within ', packages |
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131 | for package in packages: |
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132 | self.add_work_unit (package, command) |
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133 | |
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134 | def execute_all(self,command): |
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135 | self.execute (command) |
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136 | self.wait() |
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137 | |
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138 | def wait (self): |
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139 | self.pool.wait() |
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140 | |
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141 | # this will be called each time a result is available |
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142 | def result_callback(self, request, result): |
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143 | #print "**Result: %s from request #%s" % (str(result), request.requestID) |
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144 | print "# Result: %s from request #%s" % (result['package'], request.requestID) |
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145 | self.execute (result['cmd']) |
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146 | |
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147 | # the work the threads will have to do |
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148 | def do_execute(self, arg): |
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149 | path = self.get_work_area_path (arg['package']) |
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150 | print '#--------------------------------------------------------------' |
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151 | print '# Now trying ['+ arg['cmd']+'] in ' + path |
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152 | print '#--------------------------------------------------------------' |
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153 | self.set_work_unit_status (arg['package'], 'running') |
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154 | cmd = "cmt -use="+ arg['package'] + " run '"+ arg['cmd'] + "'" |
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155 | os.chdir(path) |
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156 | cmd = arg['cmd'] |
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157 | status, output, error, pythonError = exeCommand(cmd, iTimeout = 10) |
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158 | self.suppress_work_unit (arg['package']) |
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159 | self.set_work_unit_status (arg['package'], 'done') |
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160 | # status, output= commands.getstatusoutput(cmd) |
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161 | #print output |
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162 | #if status != 0: |
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163 | # raise RuntimeError(output) |
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164 | return {'output':output, 'cmd': arg['cmd'], 'package':arg['package']} |
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165 | |
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166 | # this will be called when an exception occurs within a thread |
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167 | def handle_exception(self, request, exc_info): |
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168 | print "# Exception occured in request #%s: %s" % \ |
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169 | (request.requestID, exc_info[1]) |
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170 | #--------- EoF --------# |
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