From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- nsprpub/pr/src/md/windows/ntdllmn.c | 57 +++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 nsprpub/pr/src/md/windows/ntdllmn.c (limited to 'nsprpub/pr/src/md/windows/ntdllmn.c') diff --git a/nsprpub/pr/src/md/windows/ntdllmn.c b/nsprpub/pr/src/md/windows/ntdllmn.c new file mode 100644 index 0000000000..e64b312d09 --- /dev/null +++ b/nsprpub/pr/src/md/windows/ntdllmn.c @@ -0,0 +1,57 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * The DLL entry point (DllMain) for NSPR. + * + * The only reason we use DLLMain() now is to find out whether + * the NSPR DLL is statically or dynamically loaded. When + * dynamically loaded, we cannot use static thread-local storage. + * However, static TLS is faster than the TlsXXX() functions. + * So we want to use static TLS whenever we can. A global + * variable _pr_use_static_tls is set in DllMain() during process + * attachment to indicate whether it is safe to use static TLS + * or not. + */ + +#include +#include + +extern BOOL _pr_use_static_tls; /* defined in ntthread.c */ + +BOOL WINAPI DllMain( + HINSTANCE hinstDLL, + DWORD fdwReason, + LPVOID lpvReserved) +{ + PRThread *me; + + switch (fdwReason) { + case DLL_PROCESS_ATTACH: + /* + * If lpvReserved is NULL, we are dynamically loaded + * and therefore can't use static thread-local storage. + */ + if (lpvReserved == NULL) { + _pr_use_static_tls = FALSE; + } else { + _pr_use_static_tls = TRUE; + } + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + if (_pr_initialized) { + me = _MD_GET_ATTACHED_THREAD(); + if ((me != NULL) && (me->flags & _PR_ATTACHED)) { + _PRI_DetachThread(); + } + } + break; + case DLL_PROCESS_DETACH: + break; + } + return TRUE; +} -- cgit v1.2.3