Tim Peters [Mon, 21 Oct 2019 16:21:35 +0000 (11:21 -0500)]
visit_reachable: replace release-mode test with an assert. (GH-16866)
It should be impossible for an untracked object to have the collecting
flag set. Back when state was stored in gc_refs, it obviously was
impossible (gc_refs couldn't possibly have a positive & negative value
simultaneously). While the _implementation_ of "state" has gotten much
more complicated, it's still _logically_ just as impossible.
Victor Stinner [Fri, 18 Oct 2019 13:49:08 +0000 (15:49 +0200)]
bpo-38502: regrtest uses process groups if available (GH-16829)
test.regrtest now uses process groups in the multiprocessing mode
(-jN command line option) if process groups are available: if
os.setsid() and os.killpg() functions are available.
Tim Graham [Fri, 18 Oct 2019 13:07:20 +0000 (09:07 -0400)]
bpo-27657: Fix urlparse() with numeric paths (#661)
* bpo-27657: Fix urlparse() with numeric paths
Revert parsing decision from bpo-754016 in favor of the documented
consensus in bpo-16932 of how to treat strings without a // to
designate the netloc.
* bpo-22891: Remove urlsplit() optimization for 'http' prefixed inputs.
Gregory P. Smith [Fri, 18 Oct 2019 03:30:42 +0000 (20:30 -0700)]
bpo-33604: Raise TypeError on missing hmac arg. (GH-16805)
Also updates the documentation to clarify the situation surrounding
the digestmod parameter that is required despite its position in the
argument list as of 3.8.0 as well as removing old python2 era
references to "binary strings".
We indavertently had this raise ValueError in 3.8.0 for the missing
arg. This is not considered an API change as no reasonable code would
be catching this missing argument error in order to handle it.
main() is now responsible to send the ANSWER, rather than
ServerProto. main() now waits until it got the HELLO before sending
the ANSWER over the new transport.
Previously, there was a race condition between main() replacing the
protocol and the protocol sending the ANSWER once it gets the HELLO.
Add a total_nframe field to the traces collected by the tracemalloc module.
This field indicates the original number of frames before it was truncated.
Fix test_compile_dir_maxlevels() on Windows without long path
support: only create 3 subdirectories instead of between 20 and 100
subdirectories.
Fix also compile_dir() to use the current sys.getrecursionlimit()
value as the default maxlevels value, rather than using
sys.getrecursionlimit() value read at startup.
Pablo Galindo [Mon, 14 Oct 2019 04:18:05 +0000 (05:18 +0100)]
bpo-38469: Handle named expression scope with global/nonlocal keywords (GH-16755)
The symbol table handing of PEP572's assignment expressions is not resolving correctly the scope of some variables in presence of global/nonlocal keywords in conjunction with comprehensions.
Tim Peters [Sun, 13 Oct 2019 21:47:04 +0000 (16:47 -0500)]
Misc gc code & comment cleanups. (GH-16752)
* Misc gc code & comment cleanups.
validate_list: there are two temp flags polluting pointers, but this checked only one. Now it checks both, and verifies that the list head's pointers are not polluted.
move_unreachable: repaired incoherent comments. Added new comments. Cleared the pollution of the unreachable list head's 'next' pointer (it was expedient while the function was running, but there's no excuse for letting this damage survive the function's end).
* Update Modules/gcmodule.c
Co-Authored-By: Pablo Galindo <Pablogsal@gmail.com>
Pablo Galindo [Sun, 13 Oct 2019 15:48:59 +0000 (16:48 +0100)]
bpo-38379: Don't block collection of unreachable objects when some objects resurrect (GH-16687)
Currently if any finalizer invoked during garbage collection resurrects any object, the gc gives up and aborts the collection. Although finalizers are assured to only run once per object, this behaviour of the gc can lead to an ever-increasing memory situation if new resurrecting objects are allocated in every new gc collection.
To avoid this, recompute what objects among the unreachable set need to be resurrected and what objects can be safely collected. In this way, resurrecting objects will not block the collection of other objects in the unreachable set.
Gregory P. Smith [Sat, 12 Oct 2019 23:35:53 +0000 (16:35 -0700)]
bpo-38456: Use /bin/true in test_subprocess (GH-16736)
* bpo-38456: Use /bin/true in test_subprocess.
Instead of sys.executable, "-c", "pass" or "import sys; sys.exit(0)"
use /bin/true when it is available. On a reasonable machine this
shaves up to two seconds wall time off the otherwise ~40sec execution
on a --with-pydebug build. It should be more notable on many
buildbots or overloaded slower I/O systems (CI, etc).
Victor Stinner [Thu, 10 Oct 2019 19:30:20 +0000 (21:30 +0200)]
bpo-38282: Rewrite getsockaddrarg() helper function (GH-16698)
Rewrite getsockaddrarg() helper function of socketmodule.c (_socket
module) to prevent a false alarm when compiling codde using GCC with
_FORTIFY_SOURCE=2. Pass a pointer of the sock_addr_t union, rather
than passing a pointer to a sockaddr structure.
Add "struct sockaddr_tipc tipc;" to the sock_addr_t union.