| 1 | #----------------------------------# |
|---|
| 2 | # -- Author: V.Garonne |
|---|
| 3 | # -- Date: 08/25/2006 |
|---|
| 4 | # -- Name: tbroadcast |
|---|
| 5 | # -- Description: mainc class |
|---|
| 6 | #----------------------------------# |
|---|
| 7 | |
|---|
| 8 | import os |
|---|
| 9 | import sys |
|---|
| 10 | import time |
|---|
| 11 | import string |
|---|
| 12 | import random |
|---|
| 13 | import commands |
|---|
| 14 | import traceback |
|---|
| 15 | from threading import BoundedSemaphore |
|---|
| 16 | |
|---|
| 17 | from threadpool import WorkRequest |
|---|
| 18 | from threadpool import ThreadPool |
|---|
| 19 | from threadpool import NoResultsPending |
|---|
| 20 | from threadpool import NoWorkersAvailable |
|---|
| 21 | from threadpool import makeRequests |
|---|
| 22 | from executer import exeCommand |
|---|
| 23 | |
|---|
| 24 | class Scheduler: |
|---|
| 25 | |
|---|
| 26 | def __init__(self, num_workers=20): |
|---|
| 27 | self.pool = ThreadPool(num_workers=num_workers) |
|---|
| 28 | self.current_package = self.get_current_package() |
|---|
| 29 | self.packages = {} |
|---|
| 30 | self.counter = 0 |
|---|
| 31 | self.semaphore = BoundedSemaphore(1) |
|---|
| 32 | self.check_cycles() |
|---|
| 33 | self.instanciate_packages () |
|---|
| 34 | self.reduce_graph () |
|---|
| 35 | |
|---|
| 36 | def get_counter(self): |
|---|
| 37 | self.semaphore.acquire () |
|---|
| 38 | self.counter = self.counter + 1 |
|---|
| 39 | value = self.counter |
|---|
| 40 | self.semaphore.release() |
|---|
| 41 | return value |
|---|
| 42 | |
|---|
| 43 | def check_cycles (self): |
|---|
| 44 | cmd = 'cmt show cycles' |
|---|
| 45 | cycle_found = False |
|---|
| 46 | status, output = commands.getstatusoutput (cmd) |
|---|
| 47 | if status != 0: |
|---|
| 48 | print output |
|---|
| 49 | sys.exit(-1) |
|---|
| 50 | lines = string.split(output, '\n') |
|---|
| 51 | for line in lines: |
|---|
| 52 | if line!='' and line [0] != '#': |
|---|
| 53 | if not cycle_found: |
|---|
| 54 | cycle_found = True |
|---|
| 55 | print "# Error: cycles found, not possible to execute broadcast with threads. See the followings packages:" |
|---|
| 56 | print line |
|---|
| 57 | if cycle_found: |
|---|
| 58 | sys.exit(-1) |
|---|
| 59 | |
|---|
| 60 | def instanciate_packages(self): |
|---|
| 61 | # We create the schedule of the work units |
|---|
| 62 | print '# First, we initialize the DAG by parsing cmt show uses' |
|---|
| 63 | cmd = 'cmt show uses' |
|---|
| 64 | status, output = commands.getstatusoutput (cmd) |
|---|
| 65 | if status != 0: |
|---|
| 66 | print output |
|---|
| 67 | sys.exit(-1) |
|---|
| 68 | lines = string.split(output, '\n') |
|---|
| 69 | self.packages [self.current_package] = {'version': '*', 'dependencies': list(), 'status': 'waiting', 'path':os.getcwd(), 'indice':1} |
|---|
| 70 | indice = 1 |
|---|
| 71 | for line in lines: |
|---|
| 72 | if line [0] == '#' and line[:5] != "#CMT>" and line not in ['# Selection :','#']: |
|---|
| 73 | name = string.split (line)[2] |
|---|
| 74 | version = string.split (line)[3] |
|---|
| 75 | if name not in self.packages[self.current_package]['dependencies']: |
|---|
| 76 | self.packages[self.current_package]['dependencies'].append (name) |
|---|
| 77 | #print '\n#', indice,':: add package', name |
|---|
| 78 | indice = indice + 1 |
|---|
| 79 | if not self.packages.has_key (name): |
|---|
| 80 | self.packages [name] = {'version': version, 'dependencies': list(), 'status': 'waiting', 'path': None, 'indice':indice} |
|---|
| 81 | indice = indice + 1 |
|---|
| 82 | found = False |
|---|
| 83 | for ligne in lines: |
|---|
| 84 | if ligne [0] == '#' and ligne[:5] != "#CMT>" and ligne not in ['# Selection :','#']: |
|---|
| 85 | if found: |
|---|
| 86 | if level < string.find(ligne, 'use'): |
|---|
| 87 | if string.split (ligne)[2] not in self.packages[name]['dependencies']: |
|---|
| 88 | self.packages[name]['dependencies'].append (string.split (ligne)[2]) |
|---|
| 89 | #print "# add dependency", string.split (ligne)[2], ' to package ',name |
|---|
| 90 | else: |
|---|
| 91 | found = False |
|---|
| 92 | if name == string.split (ligne)[2]: |
|---|
| 93 | level = string.find(ligne, 'use') |
|---|
| 94 | found = True |
|---|
| 95 | if line[:4] == "use ": |
|---|
| 96 | result = string.split (line[4:len(line)], ' ') |
|---|
| 97 | if self.packages.has_key(result[0]): |
|---|
| 98 | if len(result)==4: |
|---|
| 99 | name, version, offset, path = string.split (line[4:len(line)], " ") |
|---|
| 100 | #print name, version, offset, path |
|---|
| 101 | #print path[1:-1] + '/' + offset + '/' +name + '/' + version + '/cmt' |
|---|
| 102 | if path == '(no_auto_imports)': |
|---|
| 103 | path = offset |
|---|
| 104 | offset = '' |
|---|
| 105 | if os.path.exists(path[1:-1] + '/' + offset + '/' +name + '/' + version + '/cmt'): |
|---|
| 106 | full_path = path[1:-1] + '/' + offset + '/' +name + '/' + version + '/cmt' |
|---|
| 107 | elif os.path.exists(path[1:-1] + '/' + offset + '/' +name + '/cmt'): |
|---|
| 108 | full_path = path[1:-1] + '/' + offset + '/' +name + '/cmt' |
|---|
| 109 | else: |
|---|
| 110 | print '# error path not found for', name |
|---|
| 111 | sys.exit(-1) |
|---|
| 112 | elif len(result)==5: |
|---|
| 113 | name, version, offset, path, importation = string.split (line[4:len(line)], " ") |
|---|
| 114 | if os.path.exists(path[1:-1] + '/' + offset + '/' +name + '/' + version + '/cmt'): |
|---|
| 115 | full_path = path[1:-1] + '/' + offset + '/' +name + '/' + version + '/cmt' |
|---|
| 116 | elif os.path.exists(path[1:-1] + '/' + offset + '/' +name + '/cmt'): |
|---|
| 117 | full_path = path[1:-1] + '/' + offset + '/' +name + '/cmt' |
|---|
| 118 | else: |
|---|
| 119 | print '# error path not found for', name |
|---|
| 120 | sys.exit(-1) |
|---|
| 121 | elif len(result)==3: |
|---|
| 122 | name, version, path = string.split (line[4:len(line)], " ") |
|---|
| 123 | if os.path.exists(path[1:-1] + '/' +name + '/' + version + '/cmt'): |
|---|
| 124 | full_path = path[1:-1] + '/' +name + '/' + version + '/cmt' |
|---|
| 125 | elif os.path.exists(path[1:-1] + '/' +name + + '/cmt'): |
|---|
| 126 | full_path = path[1:-1] + '/' +name + + '/cmt' |
|---|
| 127 | else: |
|---|
| 128 | print '# error path not found for', name |
|---|
| 129 | sys.exit(-1) |
|---|
| 130 | else: |
|---|
| 131 | print "error:",line |
|---|
| 132 | print str(result) |
|---|
| 133 | sys.exit(-1) |
|---|
| 134 | self.packages[result[0]]['path'] = full_path |
|---|
| 135 | print '# Sometimes takes a certain time (should be improved asap)' |
|---|
| 136 | |
|---|
| 137 | def get_current_package(self): |
|---|
| 138 | cmd = 'cmt show macro package' |
|---|
| 139 | status, output = commands.getstatusoutput (cmd) |
|---|
| 140 | if status != 0: |
|---|
| 141 | print output |
|---|
| 142 | sys.exit(-1) |
|---|
| 143 | lines = string.split(output, '\n') |
|---|
| 144 | for line in lines: |
|---|
| 145 | if line [0] != '#': |
|---|
| 146 | start = string.find(line,"'") |
|---|
| 147 | end = string.find(line[start+1:len(line)],"'") |
|---|
| 148 | return line [start+1:start+end+1] |
|---|
| 149 | |
|---|
| 150 | def get_work_area_path (self, name): |
|---|
| 151 | return self.packages [name]['path'] |
|---|
| 152 | |
|---|
| 153 | def get_package_path (self, name): |
|---|
| 154 | #return os.getcwd () |
|---|
| 155 | cmd = 'cmt -use='+name+' run pwd' |
|---|
| 156 | status, output = commands.getstatusoutput (cmd) |
|---|
| 157 | if status != 0: |
|---|
| 158 | print output |
|---|
| 159 | sys.exit(-1) |
|---|
| 160 | lines = string.split(output, '\n') |
|---|
| 161 | for line in lines: |
|---|
| 162 | if line [0] != '#' and line[:5] != "#CMT>": |
|---|
| 163 | print line |
|---|
| 164 | return line |
|---|
| 165 | |
|---|
| 166 | def print_dependencies(self): |
|---|
| 167 | print '# ------------------------' |
|---|
| 168 | print '# package --> dependencies' |
|---|
| 169 | print '# ------------------------' |
|---|
| 170 | for key in self.packages.keys(): |
|---|
| 171 | print key, '-->', self.packages[key] ['dependencies'],',', self.packages[key] ['status'] |
|---|
| 172 | |
|---|
| 173 | def print_status(self, status): |
|---|
| 174 | print '# ------------------------' |
|---|
| 175 | print '# package --> dependencies' |
|---|
| 176 | print '# ------------------------' |
|---|
| 177 | i = 1 |
|---|
| 178 | for key in self.packages.keys(): |
|---|
| 179 | if self.packages[key] ['status'] == status: |
|---|
| 180 | print i , key, '-->', self.packages[key] ['dependencies'],',', self.packages[key] ['status'] |
|---|
| 181 | i = i + 1 |
|---|
| 182 | |
|---|
| 183 | def reduce_graph(self): |
|---|
| 184 | packages = {} |
|---|
| 185 | dependencies = list () |
|---|
| 186 | dependencies.append (self.current_package) |
|---|
| 187 | space = ' ' |
|---|
| 188 | #print '-->', self.current_package |
|---|
| 189 | packages[self.current_package] = list() |
|---|
| 190 | for package in self.packages[self.current_package]['dependencies']: |
|---|
| 191 | if package not in dependencies: |
|---|
| 192 | dependencies.append(package) |
|---|
| 193 | packages[self.current_package].append(package) |
|---|
| 194 | packages[package] = list() |
|---|
| 195 | #print ' -->', package |
|---|
| 196 | limit = True |
|---|
| 197 | for paquetage in self.packages[package]['dependencies']: |
|---|
| 198 | if paquetage not in dependencies: |
|---|
| 199 | space = space + ' ' |
|---|
| 200 | #print space, paquetage |
|---|
| 201 | dependencies.append (paquetage) |
|---|
| 202 | packages[package].append (paquetage) |
|---|
| 203 | else: |
|---|
| 204 | packages[package] = list() |
|---|
| 205 | space = '' |
|---|
| 206 | for key in packages: |
|---|
| 207 | #print key, packages[key] |
|---|
| 208 | self.packages[key]['dependencies'] = packages[key] |
|---|
| 209 | |
|---|
| 210 | def is_work_unit_waiting (self, name): |
|---|
| 211 | return self.packages[name] ['status'] == 'waiting' |
|---|
| 212 | |
|---|
| 213 | def set_work_unit_status (self, name, status): |
|---|
| 214 | self.packages[name] ['status'] = status |
|---|
| 215 | |
|---|
| 216 | def get_dependencies (self, name): |
|---|
| 217 | return self.packages[name] ['dependencies'] |
|---|
| 218 | |
|---|
| 219 | def get_next_work_units (self): |
|---|
| 220 | result = list () |
|---|
| 221 | for key in self.packages.keys(): |
|---|
| 222 | if len(self.get_dependencies (key)) == 0 and self.is_work_unit_waiting(key) : |
|---|
| 223 | result.append(key) |
|---|
| 224 | return result |
|---|
| 225 | |
|---|
| 226 | def is_work_units (self): |
|---|
| 227 | result = list () |
|---|
| 228 | for key in self.packages.keys(): |
|---|
| 229 | if self.is_work_unit_waiting(key) : |
|---|
| 230 | return True |
|---|
| 231 | return False |
|---|
| 232 | |
|---|
| 233 | def suppress_work_unit (self, name): |
|---|
| 234 | #print '# remove', name, 'from schedule' |
|---|
| 235 | for key in self.packages.keys(): |
|---|
| 236 | if name in self.packages[key]['dependencies']: |
|---|
| 237 | self.packages[key]['dependencies'].remove(name) |
|---|
| 238 | |
|---|
| 239 | def add_work_unit (self, name, cmd): |
|---|
| 240 | if self.is_work_unit_waiting (name): |
|---|
| 241 | # we create requests |
|---|
| 242 | arg = {'cmd': cmd , 'package':name} |
|---|
| 243 | req = WorkRequest(self.do_execute, [arg] , None, callback=self.result_callback, exc_callback=self.handle_exception) |
|---|
| 244 | # then we put the work request in the queue... |
|---|
| 245 | self.set_work_unit_status (name, 'queued') |
|---|
| 246 | self.pool.putRequest(req) |
|---|
| 247 | #print "# Work request #%s added on %s." % (req.requestID, str(arg['package'])) |
|---|
| 248 | |
|---|
| 249 | def execute (self, command): |
|---|
| 250 | #self.print_dependencies () |
|---|
| 251 | packages = self.get_next_work_units() |
|---|
| 252 | if len(packages) !=0: |
|---|
| 253 | print '\n#--------------------------------------------------------------' |
|---|
| 254 | print '# Execute parallel actions within packages', packages |
|---|
| 255 | for package in packages: |
|---|
| 256 | self.add_work_unit (package, command) |
|---|
| 257 | |
|---|
| 258 | def execute_all(self,command): |
|---|
| 259 | #self.print_dependencies () |
|---|
| 260 | self.execute (command) |
|---|
| 261 | self.wait() |
|---|
| 262 | #self.print_dependencies () |
|---|
| 263 | #self.print_status (status='waiting') |
|---|
| 264 | #print self.is_work_units() |
|---|
| 265 | #while self.is_work_units(): |
|---|
| 266 | # self.wait() |
|---|
| 267 | |
|---|
| 268 | def wait (self): |
|---|
| 269 | self.pool.wait() |
|---|
| 270 | |
|---|
| 271 | # this will be called each time a result is available |
|---|
| 272 | def result_callback(self, request, result): |
|---|
| 273 | #print "**Result: %s from request #%s" % (str(result), request.requestID) |
|---|
| 274 | #print "# Result: %s from request #%s" % (result['package'], request.requestID) |
|---|
| 275 | self.execute (result['cmd']) |
|---|
| 276 | |
|---|
| 277 | # the work the threads will have to do |
|---|
| 278 | def do_execute(self, arg): |
|---|
| 279 | path = self.get_work_area_path (arg['package']) |
|---|
| 280 | if path == None: |
|---|
| 281 | raise RuntimeError('Path to package '+ arg['package'] +' not found') |
|---|
| 282 | self.set_work_unit_status (arg['package'], 'running') |
|---|
| 283 | cmd = "cmt -use="+ arg['package'] + " run '"+ arg['cmd'] + "'" |
|---|
| 284 | os.chdir(path) |
|---|
| 285 | print '#--------------------------------------------------------------' |
|---|
| 286 | print '# ('+str(self.get_counter())+'/'+str(len(self.packages))+') Now trying ['+ arg['cmd']+'] in ' + path |
|---|
| 287 | print '#--------------------------------------------------------------' |
|---|
| 288 | cmd = arg['cmd'] |
|---|
| 289 | status, output, error, pythonError = exeCommand(cmd, iTimeout = 10) |
|---|
| 290 | self.suppress_work_unit (arg['package']) |
|---|
| 291 | self.set_work_unit_status (arg['package'], 'done') |
|---|
| 292 | # status, output= commands.getstatusoutput(cmd) |
|---|
| 293 | #if status != 0: |
|---|
| 294 | # raise RuntimeError(output) |
|---|
| 295 | return {'output':output, 'cmd': arg['cmd'], 'package':arg['package']} |
|---|
| 296 | |
|---|
| 297 | # this will be called when an exception occurs within a thread |
|---|
| 298 | def handle_exception(self, request, exc_info): |
|---|
| 299 | #traceback.print_stack() |
|---|
| 300 | print '#--------------------------------------------------------------' |
|---|
| 301 | #print "# Exception occured in request #%s: %s" %(request.requestID, exc_info[1]) |
|---|
| 302 | print "# Exception occured: %s" %(exc_info[1]) |
|---|
| 303 | print '#--------------------------------------------------------------' |
|---|
| 304 | sys.exit(-1) |
|---|
| 305 | #--------- EoF --------# |
|---|
