Mercurial > public > mercurial-scm > hg-stable

annotate contrib/python-zstandard/zstd/common/threading.c @ 37495:b1fb341d8a61

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
zstandard: vendor python-zstandard 0.9.0 This was just released. It features a number of goodies. More info at https://gregoryszorc.com/blog/2018/04/09/release-of-python-zstandard-0.9/. The clang-format ignore list was updated to reflect the new source of files. The project contains a vendored copy of zstandard 1.3.4. The old version was 1.1.3. One of the changes between those versions is that zstandard is now dual licensed BSD + GPLv2 and the patent rights grant has been removed. Good riddance. The API should be backwards compatible. So no changes in core should be needed. However, there were a number of changes in the library that we'll want to adapt to. Those will be addressed in subsequent commits. Differential Revision: https://phab.mercurial-scm.org/D3198
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 09 Apr 2018 10:13:29 -0700
parents c32454d69b85
children 69de49c4e39c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
1 /**
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
2 * Copyright (c) 2016 Tino Reichardt
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
3 * All rights reserved.
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
4 *
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
5 * This source code is licensed under both the BSD-style license (found in the
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
7 * in the COPYING file in the root directory of this source tree).
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
8 *
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
9 * You can contact the author at:
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
10 * - zstdmt source repository: https://github.com/mcmilk/zstdmt
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
11 */
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
12
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
13 /**
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
14 * This file will hold wrapper for systems, which do not support pthreads
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
15 */
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
16
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
17 /* create fake symbol to avoid empty trnaslation unit warning */
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
18 int g_ZSTD_threading_useles_symbol;
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
19
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
20 #if defined(ZSTD_MULTITHREAD) && defined(_WIN32)
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
21
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
22 /**
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
23 * Windows minimalist Pthread Wrapper, based on :
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
24 * http://www.cse.wustl.edu/~schmidt/win32-cv-1.html
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
25 */
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
26
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
27
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
28 /* === Dependencies === */
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
29 #include <process.h>
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
30 #include <errno.h>
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
31 #include "threading.h"
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
32
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
33
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
34 /* === Implementation === */
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
35
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
36 static unsigned __stdcall worker(void *arg)
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
37 {
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
38 ZSTD_pthread_t* const thread = (ZSTD_pthread_t*) arg;
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
39 thread->arg = thread->start_routine(thread->arg);
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
40 return 0;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
41 }
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
42
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
43 int ZSTD_pthread_create(ZSTD_pthread_t* thread, const void* unused,
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
44 void* (*start_routine) (void*), void* arg)
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
45 {
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
46 (void)unused;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
47 thread->arg = arg;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
48 thread->start_routine = start_routine;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
49 thread->handle = (HANDLE) _beginthreadex(NULL, 0, worker, thread, 0, NULL);
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
50
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
51 if (!thread->handle)
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
52 return errno;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
53 else
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
54 return 0;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
55 }
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
56
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
57 int ZSTD_pthread_join(ZSTD_pthread_t thread, void **value_ptr)
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
58 {
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
59 DWORD result;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
60
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
61 if (!thread.handle) return 0;
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
62
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
63 result = WaitForSingleObject(thread.handle, INFINITE);
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
64 switch (result) {
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
65 case WAIT_OBJECT_0:
37495
b1fb341d8a61 zstandard: vendor python-zstandard 0.9.0
Gregory Szorc <gregory.szorc@gmail.com>
parents: 30924
diff changeset
66 if (value_ptr) *value_ptr = thread.arg;
30924
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
67 return 0;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
68 case WAIT_ABANDONED:
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
69 return EINVAL;
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
70 default:
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
71 return GetLastError();
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
72 }
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
73 }
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
74
c32454d69b85 zstd: vendor python-zstandard 0.7.0
Gregory Szorc <gregory.szorc@gmail.com>
parents:
diff changeset
75 #endif /* ZSTD_MULTITHREAD */