/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2014. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
#if defined(_WIN32)
#include <wx/msw/private.h> // for wxSetInstance
#endif
#include "wxe_impl.h"
// Until fixed in emulator
#ifndef _WIN32
extern "C" {
extern void erts_thread_disable_fpe(void);
}
#endif
ErlDrvTid wxe_thread;
ErlDrvMutex *wxe_status_m;
ErlDrvCond *wxe_status_c;
int wxe_status = WXE_NOT_INITIATED;
ErlDrvMutex * wxe_batch_locker_m;
ErlDrvCond * wxe_batch_locker_c;
ErlDrvTermData init_caller = 0;
#ifdef __DARWIN__
extern "C" {
int erl_drv_stolen_main_thread_join(ErlDrvTid tid, void **respp);
int erl_drv_steal_main_thread(char *name,
ErlDrvTid *dtid,
void* (*func)(void*),
void* arg,
ErlDrvThreadOpts *opts);
}
#endif
void *wxe_main_loop(void * );
/* ************************************************************
* START AND STOP of driver thread
* ************************************************************/
int load_native_gui()
{
return 1;
}
int start_native_gui(wxe_data *sd)
{
int res;
wxe_status_m = erl_drv_mutex_create((char *) "wxe_status_m");
wxe_status_c = erl_drv_cond_create((char *)"wxe_status_c");
wxe_batch_locker_m = erl_drv_mutex_create((char *)"wxe_batch_locker_m");
wxe_batch_locker_c = erl_drv_cond_create((char *)"wxe_batch_locker_c");
init_caller = driver_connected(sd->port_handle);
#ifdef __DARWIN__
res = erl_drv_steal_main_thread((char *)"wxwidgets",
&wxe_thread,wxe_main_loop,(void *) sd->pdl,NULL);
#else
res = erl_drv_thread_create((char *)"wxwidgets",
&wxe_thread,wxe_main_loop,(void *) sd->pdl,NULL);
#endif
if(res == 0) {
erl_drv_mutex_lock(wxe_status_m);
for(;wxe_status == WXE_NOT_INITIATED;) {
erl_drv_cond_wait(wxe_status_c, wxe_status_m);
}
erl_drv_mutex_unlock(wxe_status_m);
return wxe_status;
} else {
wxString msg;
msg.Printf(wxT("Erlang failed to create wxe-thread %d\r\n"), res);
send_msg("error", &msg);
return -1;
}
}
void stop_native_gui(wxe_data *sd)
{
if(wxe_status == WXE_INITIATED) {
meta_command(WXE_SHUTDOWN, sd);
}
#ifdef __DARWIN__
erl_drv_stolen_main_thread_join(wxe_thread, NULL);
#else
erl_drv_thread_join(wxe_thread, NULL);
#endif
erl_drv_mutex_destroy(wxe_status_m);
erl_drv_cond_destroy(wxe_status_c);
erl_drv_mutex_destroy(wxe_batch_locker_m);
erl_drv_cond_destroy(wxe_batch_locker_c);
}
void unload_native_gui()
{
}
/* ************************************************************
* wxWidgets Thread
* ************************************************************/
void *wxe_main_loop(void *vpdl)
{
int result;
int argc = 1;
char * temp = (char *) "Erlang";
char * argv[] = {temp,NULL};
ErlDrvPDL pdl = (ErlDrvPDL) vpdl;
driver_pdl_inc_refc(pdl);
// Disable floating point execption if they are on.
// This should be done in emulator but it's not in yet.
#ifndef _WIN32
erts_thread_disable_fpe();
#else
// Setup that wxWidgets should look for cursors and icons in
// this dll and not in werl.exe (which is the default)
HMODULE WXEHandle = GetModuleHandle(_T("wxe_driver"));
wxSetInstance((HINSTANCE) WXEHandle);
#endif
wxe_ps_init();
result = wxEntry(argc, argv);
// fprintf(stderr, "WXWidgets quits main loop %d \r\n", result);
if(result >= 0 && wxe_status == WXE_INITIATED) {
/* We are done try to make a clean exit */
wxe_status = WXE_EXITED;
driver_pdl_dec_refc(pdl);
#ifndef __DARWIN__
erl_drv_thread_exit(NULL);
#endif
return NULL;
} else {
erl_drv_mutex_lock(wxe_status_m);
wxe_status = WXE_ERROR;
erl_drv_cond_signal(wxe_status_c);
erl_drv_mutex_unlock(wxe_status_m);
driver_pdl_dec_refc(pdl);
return NULL;
}
}
