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ntdll: Avoid heap allocations during thread creation.

This commit is contained in:
Alexandre Julliard 2007-01-18 12:20:10 +01:00
parent 735dbc406b
commit fb75c66897
1 changed files with 2 additions and 8 deletions
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10
dlls/ntdll/thread.c
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@ -231,6 +231,7 @@ HANDLE thread_init(void)
sigstack_total_size = get_signal_stack_total_size();
while (1 << sigstack_zero_bits < sigstack_total_size) sigstack_zero_bits++;
assert( 1 << sigstack_zero_bits == sigstack_total_size ); /* must be a power of 2 */
assert( sigstack_total_size >= sizeof(TEB) + sizeof(struct startup_info) );
thread_info.teb_size = sigstack_total_size;
addr = NULL;
@ -344,7 +345,6 @@ static void start_thread( struct wine_pthread_thread_info *info )
/* setup the guard page */
size = page_size;
NtProtectVirtualMemory( NtCurrentProcess(), &teb->DeallocationStack, &size, PAGE_NOACCESS, NULL );
RtlFreeHeap( GetProcessHeap(), 0, info );
RtlAcquirePebLock();
InsertHeadList( &tls_links, &teb->TlsLinks );
@ -418,12 +418,6 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *
if (status) goto error;
if (!(info = RtlAllocateHeap( GetProcessHeap(), 0, sizeof(*info) )))
{
status = STATUS_NO_MEMORY;
goto error;
}
addr = NULL;
size = sigstack_total_size;
if ((status = NtAllocateVirtualMemory( NtCurrentProcess(), &addr, sigstack_zero_bits,
@ -431,6 +425,7 @@ NTSTATUS WINAPI RtlCreateUserThread( HANDLE process, const SECURITY_DESCRIPTOR *
goto error;
teb = addr;
teb->Peb = NtCurrentTeb()->Peb;
info = (struct startup_info *)(teb + 1);
info->pthread_info.teb_size = size;
if ((status = init_teb( teb ))) goto error;
@ -488,7 +483,6 @@ error:
SIZE_T size = 0;
NtFreeVirtualMemory( NtCurrentProcess(), &addr, &size, MEM_RELEASE );
}
RtlFreeHeap( GetProcessHeap(), 0, info );
if (handle) NtClose( handle );
close( request_pipe[1] );
return status;