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author | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
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committer | David Robillard <d@drobilla.net> | 2018-09-15 14:51:02 +0200 |
commit | ffb5286641dca2e12bebd2c4a4f4a73cc11a20e6 (patch) | |
tree | 4d5eee9bf36eb3a34080a7b928333939327a5a96 /waflib/extras/qnxnto.py | |
parent | bd57bc1edb6d8131a920bcc4f12d91457e2ca2ed (diff) | |
parent | 8c96b17a5393bffee0c521c4872a9fa999048032 (diff) | |
download | lilv-ffb5286641dca2e12bebd2c4a4f4a73cc11a20e6.tar.gz lilv-ffb5286641dca2e12bebd2c4a4f4a73cc11a20e6.tar.bz2 lilv-ffb5286641dca2e12bebd2c4a4f4a73cc11a20e6.zip |
Merge commit '8c96b17a5393bffee0c521c4872a9fa999048032' as 'waflib'
Diffstat (limited to 'waflib/extras/qnxnto.py')
-rw-r--r-- | waflib/extras/qnxnto.py | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/waflib/extras/qnxnto.py b/waflib/extras/qnxnto.py new file mode 100644 index 0000000..1158124 --- /dev/null +++ b/waflib/extras/qnxnto.py @@ -0,0 +1,72 @@ +#!/usr/bin/env python +# encoding: utf-8 +# Jérôme Carretero 2011 (zougloub) +# QNX neutrino compatibility functions + +import sys, os +from waflib import Utils + +class Popen(object): + """ + Popen cannot work on QNX from a threaded program: + Forking in threads is not implemented in neutrino. + + Python's os.popen / spawn / fork won't work when running in threads (they will if in the main program thread) + + In waf, this happens mostly in build. + And the use cases can be replaced by os.system() calls. + """ + __slots__ = ["prog", "kw", "popen", "verbose"] + verbose = 0 + def __init__(self, prog, **kw): + try: + self.prog = prog + self.kw = kw + self.popen = None + if Popen.verbose: + sys.stdout.write("Popen created: %r, kw=%r..." % (prog, kw)) + + do_delegate = kw.get('stdout') == -1 and kw.get('stderr') == -1 + if do_delegate: + if Popen.verbose: + print("Delegating to real Popen") + self.popen = self.real_Popen(prog, **kw) + else: + if Popen.verbose: + print("Emulating") + except Exception as e: + if Popen.verbose: + print("Exception: %s" % e) + raise + + def __getattr__(self, name): + if Popen.verbose: + sys.stdout.write("Getattr: %s..." % name) + if name in Popen.__slots__: + return object.__getattribute__(self, name) + else: + if self.popen is not None: + if Popen.verbose: + print("from Popen") + return getattr(self.popen, name) + else: + if name == "wait": + return self.emu_wait + else: + raise Exception("subprocess emulation: not implemented: %s" % name) + + def emu_wait(self): + if Popen.verbose: + print("emulated wait (%r kw=%r)" % (self.prog, self.kw)) + if isinstance(self.prog, str): + cmd = self.prog + else: + cmd = " ".join(self.prog) + if 'cwd' in self.kw: + cmd = 'cd "%s" && %s' % (self.kw['cwd'], cmd) + return os.system(cmd) + +if sys.platform == "qnx6": + Popen.real_Popen = Utils.subprocess.Popen + Utils.subprocess.Popen = Popen + |