From 281e419402fb1f80d794fe32e8f8e95b66941bc2 Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Tue, 23 Dec 2003 16:43:45 +0000 Subject: [PATCH] add missing file --- winsup/cygwin/cygtls.cc | 125 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 winsup/cygwin/cygtls.cc diff --git a/winsup/cygwin/cygtls.cc b/winsup/cygwin/cygtls.cc new file mode 100644 index 000000000..2734cf536 --- /dev/null +++ b/winsup/cygwin/cygtls.cc @@ -0,0 +1,125 @@ +/* cygtls.h + + Copyright 2003 Red Hat, Inc. + +This software is a copyrighted work licensed under the terms of the +Cygwin license. Please consult the file "CYGWIN_LICENSE" for +details. */ + +#include "winsup.h" +#include "thread.h" +#include "cygtls.h" +#include "assert.h" +#include + +static _threadinfo NO_COPY dummy_thread; +_threadinfo NO_COPY *_last_thread = &dummy_thread; + +CRITICAL_SECTION NO_COPY _threadinfo::protect_linked_list; + +void +_threadinfo::set_state (bool is_exception) +{ + initialized = CYGTLS_INITIALIZED + is_exception; +} + +void +_threadinfo::reset_exception () +{ + if (initialized == CYGTLS_EXCEPTION) + { +#ifdef DEBUGGING + debug_printf ("resetting stack after an exception stack %p, stackptr %p", stack, stackptr); +#endif + set_state (false); + stackptr--; + } +} + +/* Two calls to get the stack right... */ +void +_threadinfo::call (DWORD (*func) (void *, void *), void *arg) +{ + char buf[CYGTLS_PADSIZE]; + call2 (func, arg, buf); +} + +void +_threadinfo::call2 (DWORD (*func) (void *, void *), void *arg, void *buf) +{ + _my_tls.init_thread (buf); + ExitThread (func (arg, buf)); +} + +void +_threadinfo::init () +{ + InitializeCriticalSection (&protect_linked_list); +} + +void +_threadinfo::init_thread (void *x) +{ + if (x) + { + memset (this, 0, sizeof (*this)); + stackptr = stack; + if (_GLOBAL_REENT) + { + local_clib._stdin = _GLOBAL_REENT->_stdin; + local_clib._stdout = _GLOBAL_REENT->_stdout; + local_clib._stderr = _GLOBAL_REENT->_stderr; + local_clib.__sdidinit = _GLOBAL_REENT->__sdidinit; + local_clib.__cleanup = _GLOBAL_REENT->__cleanup; + } + local_clib._current_locale = "C"; + locals.process_logmask = LOG_UPTO (LOG_DEBUG); + } + + EnterCriticalSection (&protect_linked_list); + prev = _last_thread; + _last_thread->next = this; + _last_thread = this; + LeaveCriticalSection (&protect_linked_list); + + set_state (false); + errno_addr = &(local_clib._errno); +} + +void +_threadinfo::remove () +{ + EnterCriticalSection (&protect_linked_list); + if (prev) + { + prev->next = next; + if (next) + next->prev = prev; + if (this == _last_thread) + _last_thread = prev; + prev = next = NULL; + } + LeaveCriticalSection (&protect_linked_list); +} + +void +_threadinfo::push (__stack_t addr, bool exception) +{ + *stackptr++ = (__stack_t) addr; + set_state (exception); +} + +__stack_t +_threadinfo::pop () +{ +#ifdef DEBUGGING + assert (stackptr > stack); +#endif + __stack_t res = *--stackptr; +#ifdef DEBUGGING + *stackptr = 0; + debug_printf ("popped %p, stack %p, stackptr %p", res, stack, stackptr); +#endif + return res; +} +