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