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