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authorDavid Robillard <d@drobilla.net>2019-03-17 17:31:05 +0100
committerDavid Robillard <d@drobilla.net>2019-03-17 17:31:05 +0100
commit406f89271452fdb573c7e28113b1ed08ff2b4eda (patch)
treed2dcbaf61f3749f73dc7a5e10d3fc6cd5e6e129a /extras/qnxnto.py
parent7983a5aae615290d04fd43cbc2752f8cf4a46d10 (diff)
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Squashed 'waflib/' changes from 915dcb1..e7a29b6
e7a29b6 Upgrade to waf 2.0.15 8280f9d Add command for running executables from the build directory 8073c1a Make make_simple_dox() safe in case of exception 70d03b8 Avoid use of global counter hacks for configuration display b7d689a Rewrite test framework 94deadf Automatically add options and move add_flags() to options context f4259ee Reduce system include path noise 927b608 Automatically display configuration header c44b8f3 Set line justification from a constant in the wscript a48e26f Automatically detect if wscript has a test hook ef66724 Save runtime variables in the environment 63bcbcd Clean up TestContext b1d9505 Add ExecutionContext for setting runtime environment 387c1df Add show_diff() and test_file_equals() utilities 29d4d29 Fix in-tree library paths 9fde01f Add custom configuration context 6d3612f Add lib_path_name constant git-subtree-dir: waflib git-subtree-split: e7a29b6b9b2f842314244c23c14d8f8f560904e1
Diffstat (limited to 'extras/qnxnto.py')
-rw-r--r--extras/qnxnto.py72
1 files changed, 72 insertions, 0 deletions
diff --git a/extras/qnxnto.py b/extras/qnxnto.py
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+++ b/extras/qnxnto.py
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+#!/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
+