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import os
import os.path
import re
import sys
import subprocess
import shlex
# WAF modules
from waflib import Options, Utils, Logs, TaskGen, Build, Context
from waflib.Errors import WafError
# these are set from the main wscript file
APPNAME=None
VERSION=None
bld=None
def get_command_template(env, arguments=()):
cmd = Options.options.command_template or '%s'
for arg in arguments:
cmd = cmd + " " + arg
return cmd
if hasattr(os.path, "relpath"):
relpath = os.path.relpath # since Python 2.6
else:
def relpath(path, start=os.path.curdir):
"""Return a relative version of a path"""
if not path:
raise ValueError("no path specified")
start_list = os.path.abspath(start).split(os.path.sep)
path_list = os.path.abspath(path).split(os.path.sep)
# Work out how much of the filepath is shared by start and path.
i = len(os.path.commonprefix([start_list, path_list]))
rel_list = [os.path.pardir] * (len(start_list)-i) + path_list[i:]
if not rel_list:
return os.path.curdir
return os.path.join(*rel_list)
def find_program(program_name, env):
launch_dir = os.path.abspath(Context.launch_dir)
#top_dir = os.path.abspath(Options.cwd_launch)
found_programs = []
for obj in bld.all_task_gen:
if not getattr(obj, 'is_ns3_program', False):
continue
## filter out programs not in the subtree starting at the launch dir
if not (obj.path.abspath().startswith(launch_dir)
or obj.path.get_bld().abspath().startswith(launch_dir)):
continue
name1 = obj.name
name2 = os.path.join(relpath(obj.path.abspath(), launch_dir), obj.name)
names = [name1, name2]
found_programs.extend(names)
if program_name in names:
return obj
raise ValueError("program '%s' not found; available programs are: %r"
% (program_name, found_programs))
def get_proc_env(os_env=None):
env = bld.env
if sys.platform == 'linux2' or sys.platform == 'linux':
pathvar = 'LD_LIBRARY_PATH'
elif sys.platform == 'darwin':
pathvar = 'DYLD_LIBRARY_PATH'
elif sys.platform == 'win32':
pathvar = 'PATH'
elif sys.platform == 'cygwin':
pathvar = 'PATH'
elif sys.platform.startswith('freebsd'):
pathvar = 'LD_LIBRARY_PATH'
else:
Logs.warn(("Don't know how to configure "
"dynamic library path for the platform %r;"
" assuming it's LD_LIBRARY_PATH.") % (sys.platform,))
pathvar = 'LD_LIBRARY_PATH'
proc_env = dict(os.environ)
if os_env is not None:
proc_env.update(os_env)
if pathvar is not None:
if pathvar in proc_env:
proc_env[pathvar] = os.pathsep.join(list(env['NS3_MODULE_PATH']) + [proc_env[pathvar]])
else:
proc_env[pathvar] = os.pathsep.join(list(env['NS3_MODULE_PATH']))
pymoddir = bld.path.find_dir('bindings/python').get_bld().abspath()
pyvizdir = bld.path.find_dir('src/visualizer').abspath()
if 'PYTHONPATH' in proc_env:
proc_env['PYTHONPATH'] = os.pathsep.join([pymoddir, pyvizdir] + [proc_env['PYTHONPATH']])
else:
proc_env['PYTHONPATH'] = os.pathsep.join([pymoddir, pyvizdir])
if 'PATH' in proc_env:
proc_env['PATH'] = os.pathsep.join(list(env['NS3_EXECUTABLE_PATH']) + [proc_env['PATH']])
else:
proc_env['PATH'] = os.pathsep.join(list(env['NS3_EXECUTABLE_PATH']))
return proc_env
def run_argv(argv, env, os_env=None, cwd=None, force_no_valgrind=False):
proc_env = get_proc_env(os_env)
if Options.options.valgrind and not force_no_valgrind:
if Options.options.command_template:
raise WafError("Options --command-template and --valgrind are conflicting")
if not env['VALGRIND']:
raise WafError("valgrind is not installed")
# Use the first program found in the env['VALGRIND'] list
argv = [env['VALGRIND'][0], "--leak-check=full", "--show-reachable=yes", "--error-exitcode=1"] + argv
proc = subprocess.Popen(argv, env=proc_env, cwd=cwd, stderr=subprocess.PIPE)
stderrdata = proc.communicate()[1]
stderrdata = stderrdata.decode('utf-8')
error = False
for line in stderrdata:
sys.stderr.write(line)
if "== LEAK SUMMARY" in line:
error = True
retval = proc.wait()
if retval == 0 and error:
retval = 1
else:
try:
WindowsError
except NameError:
retval = subprocess.Popen(argv, env=proc_env, cwd=cwd).wait()
else:
try:
retval = subprocess.Popen(argv, env=proc_env, cwd=cwd).wait()
except WindowsError as ex:
raise WafError("Command %s raised exception %s" % (argv, ex))
if retval:
signame = None
if retval < 0: # signal?
import signal
for name, val in vars(signal).items():
if len(name) > 3 and name[:3] == 'SIG' and name[3] != '_':
if val == -retval:
signame = name
break
if signame:
raise WafError("Command %s terminated with signal %s."
" Run it under a debugger to get more information "
"(./waf --run <program> --command-template=\"gdb --args %%s <args>\")." % (argv, signame))
else:
raise WafError("Command %s exited with code %i" % (argv, retval))
return retval
def get_run_program(program_string, command_template=None):
"""
Return the program name and argv of the process that would be executed by
run_program(program_string, command_template).
"""
#print "get_run_program_argv(program_string=%r, command_template=%r)" % (program_string, command_template)
env = bld.env
if command_template in (None, '%s'):
argv = shlex.split(program_string)
#print "%r ==shlex.split==> %r" % (program_string, argv)
program_name = argv[0]
try:
program_obj = find_program(program_name, env)
except ValueError as ex:
raise WafError(str(ex))
program_node = program_obj.path.find_or_declare(program_obj.target)
#try:
# program_node = program_obj.path.find_build(ccroot.get_target_name(program_obj))
#except AttributeError:
# raise Utils.WafError("%s does not appear to be a program" % (program_name,))
execvec = [program_node.abspath()] + argv[1:]
else:
program_name = program_string
try:
program_obj = find_program(program_name, env)
except ValueError as ex:
raise WafError(str(ex))
program_node = program_obj.path.find_or_declare(program_obj.target)
#try:
# program_node = program_obj.path.find_build(ccroot.get_target_name(program_obj))
#except AttributeError:
# raise Utils.WafError("%s does not appear to be a program" % (program_name,))
tmpl = command_template % (program_node.abspath(),)
execvec = shlex.split(tmpl.replace('\\', '\\\\'))
#print "%r ==shlex.split==> %r" % (command_template % (program_node.abspath(env),), execvec)
return program_name, execvec
def run_program(program_string, env, command_template=None, cwd=None, visualize=False):
"""
if command_template is not None, then program_string == program
name and argv is given by command_template with %s replaced by the
full path to the program. Else, program_string is interpreted as
a shell command with first name being the program name.
"""
dummy_program_name, execvec = get_run_program(program_string, command_template)
if cwd is None:
if (Options.options.cwd_launch):
cwd = Options.options.cwd_launch
else:
cwd = Options.cwd_launch
if visualize:
execvec.append("--SimulatorImplementationType=ns3::VisualSimulatorImpl")
return run_argv(execvec, env, cwd=cwd)
def run_python_program(program_string, env, visualize=False):
env = bld.env
execvec = shlex.split(program_string)
if (Options.options.cwd_launch):
cwd = Options.options.cwd_launch
else:
cwd = Options.cwd_launch
if visualize:
execvec.append("--SimulatorImplementationType=ns3::VisualSimulatorImpl")
return run_argv([env['PYTHON'][0]] + execvec, env, cwd=cwd)
def uniquify_list(seq):
"""Remove duplicates while preserving order
From Dave Kirby http://www.peterbe.com/plog/uniqifiers-benchmark
"""
seen = set()
return [ x for x in seq if x not in seen and not seen.add(x)]
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