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Fixed possible deadlock on exit. The pthread library cannot kill a waiting

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thread and destroying an object locked by another thread is not possible.
This commit is contained in:
Volker Ruppert 2019-11-13 12:00:27 +00:00
parent 6d479ed72a
commit 449c65a625
1 changed files with 7 additions and 3 deletions
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10
bochs/iodev/display/voodoo.cc
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@ -2,7 +2,7 @@
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2012-2018 The Bochs Project
// Copyright (C) 2012-2019 The Bochs Project
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
@ -169,14 +169,17 @@ void CDECL libvoodoo_LTX_plugin_fini(void)
// FIFO thread
static bx_bool voodoo_keep_alive = 1;
BX_THREAD_FUNC(fifo_thread, indata)
{
Bit32u type, offset = 0, data = 0, regnum;
fifo_state *fifo;
UNUSED(indata);
while (1) {
while (voodoo_keep_alive) {
if (bx_wait_for_event(&fifo_wakeup)) {
if (!voodoo_keep_alive) break;
BX_LOCK(fifo_mutex);
while (1) {
if (!fifo_empty(&v->fbi.fifo)) {
@ -246,7 +249,8 @@ bx_voodoo_base_c::bx_voodoo_base_c()
bx_voodoo_base_c::~bx_voodoo_base_c()
{
BX_THREAD_KILL(fifo_thread_var);
voodoo_keep_alive = 0;
bx_set_event(&fifo_wakeup);
BX_FINI_MUTEX(fifo_mutex);
BX_FINI_MUTEX(render_mutex);
if (s.model >= VOODOO_2) {