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Properly free thread stacks on NPTL systems.

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This commit is contained in:
Alexandre Julliard 2003-08-02 00:44:25 +00:00
parent 9ebf12c36d
commit 8669193d11
1 changed files with 26 additions and 7 deletions
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33
dlls/ntdll/sysdeps.c
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@ -99,6 +99,10 @@ void SYSDEPS_SetCurThread( TEB *teb )
/* On non-i386 Solaris, we use the LWP private pointer */
_lwp_setprivate( teb );
#endif
#ifdef HAVE_NPTL
teb->pthread_data = (void *)pthread_self();
#endif
}
@ -160,7 +164,6 @@ int SYSDEPS_SpawnThread( TEB *teb )
pthread_attr_t attr;
pthread_attr_init( &attr );
pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_DETACHED );
pthread_attr_setstack( &attr, teb->stack_base, (char *)teb->stack_top - (char *)teb->stack_base );
if (pthread_create( &id, &attr, (void * (*)(void *))SYSDEPS_StartThread, teb )) return -1;
return 0;
@ -277,9 +280,29 @@ void SYSDEPS_SwitchToThreadStack( void (*func)(void *), void *arg )
void SYSDEPS_ExitThread( int status )
{
TEB *teb = NtCurrentTeb();
DWORD size = 0;
#ifdef HAVE_NPTL
static TEB *teb_to_free;
TEB *free_teb;
if ((free_teb = interlocked_xchg_ptr( (void **)&teb_to_free, teb )) != NULL)
{
void *ptr;
TRACE("freeing prev teb %p stack %p fs %04x\n",
free_teb, free_teb->stack_base, free_teb->teb_sel );
pthread_join( (pthread_t)free_teb->pthread_data, &ptr );
wine_ldt_free_fs( free_teb->teb_sel );
ptr = free_teb->stack_base;
NtFreeVirtualMemory( GetCurrentProcess(), &ptr, &size, MEM_RELEASE );
}
SIGNAL_Block();
SYSDEPS_AbortThread( status );
#else
struct thread_cleanup_info info;
MEMORY_BASIC_INFORMATION meminfo;
DWORD size = 0;
NtQueryVirtualMemory( GetCurrentProcess(), teb->stack_top, MemoryBasicInformation,
&meminfo, sizeof(meminfo), NULL );
@ -288,17 +311,13 @@ void SYSDEPS_ExitThread( int status )
info.status = status;
SIGNAL_Block();
#ifdef HAVE_NPTL
SYSDEPS_AbortThread( status );
#else
SIGNAL_Reset();
size = 0;
NtFreeVirtualMemory( GetCurrentProcess(), &teb->stack_base, &size, MEM_RELEASE | MEM_SYSTEM );
close( teb->wait_fd[0] );
close( teb->wait_fd[1] );
close( teb->reply_fd );
close( teb->request_fd );
SIGNAL_Reset();
teb->stack_low = get_temp_stack();
teb->stack_top = (char *) teb->stack_low + TEMP_STACK_SIZE;
SYSDEPS_SwitchToThreadStack( cleanup_thread, &info );