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* cygtls.h: Add more "don't parse this" guards.

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(_threadinfo::init_thread): Rename from 'init'.
(_threadinfo::init): Declare new function.
(_threadinfo::protect_linked_list): Declare new critical section.
* dcrt0.cc (dll_crt0_1): Call init_thread to initialize thread stuff.
(_dll_crt0): Call _threadinfo::init prior to invoking dll_crt0_1.
* exceptions.cc (_threadinfo::init_thread): Rename from 'init'.
(_threadinfo::init): Define new function.  Protect linked list manipulation
with new critical section.
(_threadinfo::call): Reflect function name change.
(_threadinfo::remove): Protect linked list manipulation with new critical
section
* gentls_offsets: Rework to allow multi-line "don't parse this" protection.
* init.cc (dll_entry): Don't remove threads info stuff here since the remove
function uses a critical section which can't be used during thread creation or
destruction.
* thread.cc (pthread::exit): Call _threadinfo remove function here.
This commit is contained in:
Christopher Faylor
2003-12-06 18:08:38 +00:00
parent bdfb870e4a
commit 2b6d15a908
7 changed files with 56 additions and 12 deletions
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18
winsup/cygwin/exceptions.cc
View File

@ -40,6 +40,8 @@ _threadinfo NO_COPY dummy_thread;
_threadinfo NO_COPY *_last_thread = &dummy_thread;
extern _threadinfo *_main_tls;
CRITICAL_SECTION NO_COPY _threadinfo::protect_linked_list;
extern DWORD sigtid;
extern HANDLE hExeced;
@ -157,18 +159,28 @@ _threadinfo::call (void (*func) (void *, void *), void *arg)
void
_threadinfo::call2 (void (*func) (void *, void *), void *arg, void *buf)
{
init (buf);
init_thread (buf);
func (arg, buf);
}
void
_threadinfo::init (void *)
_threadinfo::init ()
{
InitializeCriticalSection (&protect_linked_list);
}
void
_threadinfo::init_thread (void *)
{
memset (this, 0, sizeof (*this));
stackptr = stack;
EnterCriticalSection (&protect_linked_list);
prev = _last_thread;
_last_thread->next = this;
_last_thread = this;
LeaveCriticalSection (&protect_linked_list);
set_state (false);
errno_addr = &errno;
}
@ -177,6 +189,7 @@ void
_threadinfo::remove ()
{
_threadinfo *t;
EnterCriticalSection (&protect_linked_list);
for (t = _last_thread; t && t != this; t = t->prev)
continue;
if (!t)
@ -186,6 +199,7 @@ _threadinfo::remove ()
t->next->prev = t->prev;
if (t == _last_thread)
_last_thread = t->prev;
LeaveCriticalSection (&protect_linked_list);
}
void