/* * %CopyrightBegin% * * Copyright Ericsson AB 2008-2011. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in * compliance with the License. You should have received a copy of the * Erlang Public License along with this software. If not, it can be * retrieved online at http://www.erlang.org/. * * Software distributed under the License is distributed on an "AS IS" * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See * the License for the specific language governing rights and limitations * under the License. * * %CopyrightEnd% */ #include <stdio.h> #include <signal.h> #include <wx/wx.h> // Avoid including these in dcbuffer below #include "wx/dcmemory.h" #include "wx/dcclient.h" #include "wx/window.h" // Ok ugly but needed for wxBufferedDC crash workaround #define private public #include <wx/dcbuffer.h> #undef private #include "wxe_impl.h" #include "wxe_events.h" #include "wxe_return.h" IMPLEMENT_APP_NO_MAIN(WxeApp) DECLARE_APP(WxeApp) DEFINE_EVENT_TYPE(wxeEVT_META_COMMAND) #define WXE_NOT_INITIATED 0 #define WXE_INITIATED 1 #define WXE_EXITED 2 #define WXE_ERROR -1 #define WXE_NORMAL 0 #define WXE_CALLBACK 1 #define WXE_STORED 2 ErlDrvTid wxe_thread; ErlDrvMutex *wxe_status_m; ErlDrvCond *wxe_status_c; ErlDrvMutex * wxe_batch_locker_m; ErlDrvCond * wxe_batch_locker_c; static int wxe_status = WXE_NOT_INITIATED; wxList * wxe_batch = NULL; wxList * wxe_batch_cb_saved = NULL; ErlDrvTermData wxe_batch_caller = 0; ErlDrvTermData init_caller = 0; // extern opengl void gl_dispatch(int op, char *bp, ErlDrvTermData caller, WXEBinRef *bins[]); // Until fixed in emulator #ifndef _WIN32 extern "C" { extern void erts_thread_disable_fpe(void); } #endif #if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__) #define __DARWIN__ 1 #endif #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); #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() { } /* ************************************************************ * Commands from erlang * Called by emulator thread * ************************************************************/ void push_command(int op,char * buf,int len, wxe_data *sd) { // fprintf(stderr, "Op %d %d\r\n", op, (int) driver_caller(sd->port)),fflush(stderr); wxeCommand *Cmd = new wxeCommand(op, buf, len, sd); erl_drv_mutex_lock(wxe_batch_locker_m); wxe_batch->Append(Cmd); if(wxe_batch_caller > 0) { // wx-thread is waiting on batch end in cond_wait erl_drv_cond_signal(wxe_batch_locker_c); } else { // wx-thread is waiting gui-events if(op == WXE_BATCH_BEGIN) { wxe_batch_caller = 1; } erl_drv_cond_signal(wxe_batch_locker_c); wxWakeUpIdle(); } erl_drv_mutex_unlock(wxe_batch_locker_m); } void meta_command(int what, wxe_data *sd) { if(what == PING_PORT) { erl_drv_mutex_lock(wxe_batch_locker_m); if(wxe_batch_caller > 0) { wxeCommand *Cmd = new wxeCommand(WXE_DEBUG_PING, NULL, 0, sd); wxe_batch->Append(Cmd); erl_drv_cond_signal(wxe_batch_locker_c); } else { wxWakeUpIdle(); } erl_drv_mutex_unlock(wxe_batch_locker_m); } else { if(sd) { wxeMetaCommand Cmd(sd, what); wxTheApp->AddPendingEvent(Cmd); } } } /* ************************************************************ * 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); // ErlDrvSysInfo einfo; // driver_system_info(&einfo, sizeof(ErlDrvSysInfo)); // 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(); #endif 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; } } wxFrame * dummy_window; void create_dummy_window() { dummy_window = new wxFrame(NULL,-1, wxT("wx driver"), wxDefaultPosition, wxSize(5,5), wxFRAME_NO_TASKBAR); dummy_window->Connect(wxID_ANY, wxEVT_CLOSE_WINDOW, (wxObjectEventFunction) (wxEventFunction) &WxeApp::dummy_close); } // wxMac really wants a top level window which command-q quits if there are no // windows open, and this will kill the thread, so restart the dummy_window each // time a we receive a close. void WxeApp::dummy_close(wxEvent& Ev) { // fprintf(stderr, "Tried to close dummy window\r\n"); fflush(stderr); create_dummy_window(); } // Init wx-widgets thread bool WxeApp::OnInit() { wxe_ps_init(); global_me = new wxeMemEnv(); wxe_batch = new wxList; wxe_batch_cb_saved = new wxList; cb_buff = NULL; wxIdleEvent::SetMode(wxIDLE_PROCESS_SPECIFIED); this->Connect(wxID_ANY, wxEVT_IDLE, (wxObjectEventFunction) (wxEventFunction) &WxeApp::idle); this->Connect(CREATE_PORT, wxeEVT_META_COMMAND, (wxObjectEventFunction) (wxEventFunction) &WxeApp::newMemEnv); this->Connect(DELETE_PORT, wxeEVT_META_COMMAND, (wxObjectEventFunction) (wxEventFunction) &WxeApp::destroyMemEnv); this->Connect(WXE_SHUTDOWN, wxeEVT_META_COMMAND, (wxObjectEventFunction) (wxEventFunction) &WxeApp::shutdown); // fprintf(stderr, "Size void* %d: long %d long long %d int64 %d \r\n", // sizeof(void *), sizeof(long), sizeof(long long), sizeof(wxInt64)); initEventTable(); wxInitAllImageHandlers(); /* Create a dummy window so wxWidgets don't automagicly quits the main loop after the last window */ create_dummy_window(); init_nonconsts(global_me, init_caller); erl_drv_mutex_lock(wxe_status_m); wxe_status = WXE_INITIATED; erl_drv_cond_signal(wxe_status_c); erl_drv_mutex_unlock(wxe_status_m); return TRUE; } void WxeApp::shutdown(wxeMetaCommand& Ecmd) { delete dummy_window; ExitMainLoop(); } void send_msg(const char * type, wxString * msg) { wxeReturn rt = wxeReturn(WXE_DRV_PORT, init_caller); rt.addAtom((char *) "wxe_driver"); rt.addAtom((char *) type); rt.add(msg); rt.addTupleCount(3); rt.send(); } /* ************************************************************ * Erlang Command execution * * ************************************************************/ /* Callback from printer and event callbacks */ void pre_callback() { // no-op } void handle_event_callback(ErlDrvPort port, ErlDrvTermData process) { WxeApp * app = (WxeApp *) wxTheApp; ErlDrvMonitor monitor; driver_monitor_process(port, process, &monitor); // Should we be able to handle commands when recursing? probably erl_drv_mutex_lock(wxe_batch_locker_m); // fprintf(stderr, "\r\nCB EV Start ");fflush(stderr); app->dispatch_cb(wxe_batch, wxe_batch_cb_saved, process); // fprintf(stderr, ".. done \r\n");fflush(stderr); wxe_batch_caller = 0; erl_drv_mutex_unlock(wxe_batch_locker_m); driver_demonitor_process(port, &monitor); } // Called by wx thread void WxeApp::idle(wxIdleEvent& event) { dispatch_cmds(); } void WxeApp::dispatch_cmds() { erl_drv_mutex_lock(wxe_batch_locker_m); int level = dispatch(wxe_batch_cb_saved, 0, WXE_STORED); dispatch(wxe_batch, level, WXE_NORMAL); wxe_batch_caller = 0; erl_drv_mutex_unlock(wxe_batch_locker_m); } // Should have erl_drv_mutex_lock(wxe_batch_locker_m); // when entering this function and it should be released // afterwards int WxeApp::dispatch(wxList * batch, int blevel, int list_type) { int ping = 0; // erl_drv_mutex_lock(wxe_batch_locker_m); must be locked already while(true) { if (batch->size() > 0) { for( wxList::compatibility_iterator node = batch->GetFirst(); node; node = batch->GetFirst()) { wxeCommand *event = (wxeCommand *)node->GetData(); batch->Erase(node); switch(event->op) { case WXE_BATCH_END: {--blevel; } break; case WXE_BATCH_BEGIN: {blevel++; } break; case WXE_DEBUG_PING: // When in debugger we don't want to hang waiting for a BATCH_END // that never comes, because a breakpoint have hit. ping++; if(ping > 2) blevel = 0; break; case WXE_CB_RETURN: // erl_drv_mutex_unlock(wxe_batch_locker_m); should be called after // whatever cleaning is necessary if(event->len > 0) { cb_buff = (char *) driver_alloc(event->len); memcpy(cb_buff, event->buffer, event->len); } return blevel; default: erl_drv_mutex_unlock(wxe_batch_locker_m); if(event->op < OPENGL_START) { // fprintf(stderr, " c %d (%d) \r\n", event->op, blevel); wxe_dispatch(*event); } else { gl_dispatch(event->op,event->buffer,event->caller,event->bin); } erl_drv_mutex_lock(wxe_batch_locker_m); break; } delete event; } } else { if((list_type == WXE_STORED) || (blevel <= 0 && list_type == WXE_NORMAL)) { // erl_drv_mutex_unlock(wxe_batch_locker_m); should be called after // whatever cleaning is necessary return blevel; } // sleep until something happens //fprintf(stderr, "%s:%d sleep %d %d %d %d \r\n", __FILE__, __LINE__, batch->size(), callback_returned, blevel, is_callback);fflush(stderr); wxe_batch_caller++; while(batch->size() == 0) { erl_drv_cond_wait(wxe_batch_locker_c, wxe_batch_locker_m); } } } } void WxeApp::dispatch_cb(wxList * batch, wxList * temp, ErlDrvTermData process) { int callback_returned = 0; while(true) { if (batch->size() > 0) { for( wxList::compatibility_iterator node = batch->GetFirst(); node; node = batch->GetFirst()) { wxeCommand *event = (wxeCommand *)node->GetData(); wxeMemEnv *memenv = getMemEnv(event->port); batch->Erase(node); if(event->caller == process || // Callbacks from CB process only event->op == WXE_CB_START || // Recursive event callback allow // Allow connect_cb during CB i.e. msg from wxe_server. (memenv && event->caller == memenv->owner)) { switch(event->op) { case WXE_BATCH_END: case WXE_BATCH_BEGIN: case WXE_DEBUG_PING: break; case WXE_CB_RETURN: if(event->len > 0) { cb_buff = (char *) driver_alloc(event->len); memcpy(cb_buff, event->buffer, event->len); } callback_returned = 1; return; case WXE_CB_START: // CB start from now accept message from CB process only process = event->caller; break; default: erl_drv_mutex_unlock(wxe_batch_locker_m); if(event->op < OPENGL_START) { // fprintf(stderr, " cb %d \r\n", event->op); wxe_dispatch(*event); } else { gl_dispatch(event->op,event->buffer,event->caller,event->bin); } erl_drv_mutex_lock(wxe_batch_locker_m); break; if(callback_returned) return; } delete event; } else { // fprintf(stderr, " save %d \r\n", event->op); temp->Append(event); } } } else { if(callback_returned) { return; } // sleep until something happens //fprintf(stderr, "%s:%d sleep %d %d %d %d \r\n", __FILE__, __LINE__, batch->size(), callback_returned, blevel, is_callback);fflush(stderr); while(batch->size() == 0) { erl_drv_cond_wait(wxe_batch_locker_c, wxe_batch_locker_m); } } } } /* Memory handling */ void WxeApp::newMemEnv(wxeMetaCommand& Ecmd) { wxeMemEnv * memenv = new wxeMemEnv(); driver_pdl_inc_refc(Ecmd.pdl); for(int i = 0; i < global_me->next; i++) { memenv->ref2ptr[i] = global_me->ref2ptr[i]; } memenv->next = global_me->next; refmap[(ErlDrvTermData) Ecmd.port] = memenv; memenv->owner = Ecmd.caller; ErlDrvTermData rt[] = {ERL_DRV_ATOM, driver_mk_atom((char *)"wx_port_initiated")}; driver_send_term(WXE_DRV_PORT,Ecmd.caller,rt,2); } void WxeApp::destroyMemEnv(wxeMetaCommand& Ecmd) { // Clear incoming cmd queue first // dispatch_cmds(); wxWindow *parent = NULL; wxeMemEnv * memenv = refmap[(ErlDrvTermData) Ecmd.port]; if(wxe_debug) { wxString msg; msg.Printf(wxT("Destroying all memory ")); send_msg("debug", &msg); } // pre-pass delete all dialogs first since they might crash erlang otherwise for(int i=1; i < memenv->next; i++) { wxObject * ptr = (wxObject *) memenv->ref2ptr[i]; if(ptr) { ptrMap::iterator it = ptr2ref.find(ptr); if(it != ptr2ref.end()) { wxeRefData *refd = it->second; if(refd->alloc_in_erl) { if(refd->type == 2) { wxDialog *win = (wxDialog *) ptr; if(win->IsModal()) { win->EndModal(-1); } parent = win->GetParent(); if(parent) { ptrMap::iterator parentRef = ptr2ref.find(parent); if(parentRef == ptr2ref.end()) { // The parent is already dead delete the parent ref win->SetParent(NULL); } } delete win; } } } } } // First pass, delete all top parents/windows of all linked objects // fprintf(stderr, "close port %x\r\n", Ecmd.port);fflush(stderr); for(int i=1; i < memenv->next; i++) { void * ptr = memenv->ref2ptr[i]; if(ptr) { ptrMap::iterator it = ptr2ref.find(ptr); if(it != ptr2ref.end()) { wxeRefData *refd = it->second; if(refd->alloc_in_erl && refd->type == 0) { parent = (wxWindow *) ptr; // fprintf(stderr, "window %x %d\r\n", (int) parent, refd->ref); while(parent->GetParent()) { parent = parent->GetParent(); // fprintf(stderr, " parent %x \r\n", (int) parent); } ptrMap::iterator pdata = ptr2ref.find(parent); if(pdata != ptr2ref.end()) { delete parent; } // else parent is already deleted } } else { // fprintf(stderr, "Error found no ref in %d => %x\r\n", i, ptr); } } } // Second pass delete everything else allocated // everything linked from windows should now be deleted for(int i=1; i < memenv->next; i++) { void * ptr = memenv->ref2ptr[i]; if(ptr) { ptrMap::iterator it = ptr2ref.find(ptr); if(it != ptr2ref.end()) { wxeRefData *refd = it->second; if(refd->alloc_in_erl) { int type = refd->type; if((refd->type == 1) && ((wxObject *)ptr)->IsKindOf(CLASSINFO(wxBufferedDC))) { ((wxBufferedDC *)ptr)->m_dc = NULL; // Workaround } wxString msg; if((refd->type == 0)) { // Maybe also class 1 wxClassInfo *cinfo = ((wxObject *)ptr)->GetClassInfo(); msg.Printf(wxT("Memory leak: {wx_ref, %d, %s}"), refd->ref, cinfo->GetClassName()); send_msg("error", &msg); } else { delete_object(ptr, refd); } if(type == 0 || type > 2) { // Delete refs for leaks and non overridden allocs delete refd; ptr2ref.erase(it); } // overridden allocs deletes meta-data in clearPtr } else { // Not alloced in erl just delete references if(refd->ref >= global_me->next) { // if it is not part of global ptrs delete refd; ptr2ref.erase(it); } } } } } // // Assert ? // for(ptrMap::iterator it = ptr2ref.begin(); it != ptr2ref.end(); it++) { // wxeRefData *refd = it->second; // if(refd->ref >= global_me->next) // fprintf(stderr, "L %d %d %d\r\n", refd->ref, refd->type, refd->alloc_in_erl); // } // fflush(stderr); delete memenv; driver_pdl_dec_refc(Ecmd.pdl); refmap.erase((ErlDrvTermData) Ecmd.port); } wxeMemEnv * WxeApp::getMemEnv(ErlDrvPort port) { return refmap[(ErlDrvTermData) port]; } int WxeApp::newPtr(void * ptr, int type, wxeMemEnv *memenv) { int ref; intList free = memenv->free; if(free.IsEmpty()) { ref = memenv->next++; } else { ref = free.Pop(); }; if(ref >= memenv->max) { memenv->max *= 2; memenv->ref2ptr = (void **) driver_realloc(memenv->ref2ptr,memenv->max * sizeof(void*)); } memenv->ref2ptr[ref] = ptr; if(wxe_debug) { wxString msg; msg.Printf(wxT("Creating {wx_ref, %d, unknown} at %p "), ref, ptr); send_msg("debug", &msg); } ptr2ref[ptr] = new wxeRefData(ref, type, true, memenv); // fprintf(stderr, "ptr %x id %d\r\n", (int) ptr,ref); return ref; } int WxeApp::getRef(void * ptr, wxeMemEnv *memenv) { if(!ptr) return 0; // NULL and zero is the same ptrMap::iterator it = ptr2ref.find(ptr); if(it != ptr2ref.end()) { wxeRefData *refd = it->second; if(refd->memenv == memenv || refd->memenv == global_me) { // Found it return return refd->ref; } // else // Old reference to deleted object, release old and recreate in current memenv. ptr2ref.erase(it); } int ref; intList free = memenv->free; if(free.IsEmpty()) { ref = memenv->next++; } else { ref = free.Pop(); }; if(ref >= memenv->max) { memenv->max *= 2; memenv->ref2ptr = (void **) driver_realloc(memenv->ref2ptr,memenv->max * sizeof(void*)); } memenv->ref2ptr[ref] = ptr; ptr2ref[ptr] = new wxeRefData(ref, 0, false, memenv); return ref; } void WxeApp::clearPtr(void * ptr) { ptrMap::iterator it; it = ptr2ref.find(ptr); if(it != ptr2ref.end()) { wxeRefData *refd = it->second; intList free = refd->memenv->free; int ref = refd->ref; refd->memenv->ref2ptr[ref] = NULL; free.Append(ref); if(wxe_debug) { wxString msg; msg.Printf(wxT("Deleting {wx_ref, %d, unknown} at %p "), ref, ptr); send_msg("debug", &msg); } if(((int) refd->pid) != -1) { // Send terminate pid to owner wxeReturn rt = wxeReturn(WXE_DRV_PORT,refd->memenv->owner, false); rt.addAtom("_wxe_destroy_"); rt.add(ERL_DRV_PID, refd->pid); rt.addTupleCount(2); rt.send(); refd->pid = -1; }; if(refd->type == 1 && ((wxObject*)ptr)->IsKindOf(CLASSINFO(wxSizer))) { wxSizerItemList list = ((wxSizer*)ptr)->GetChildren(); for(wxSizerItemList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext()) { wxSizerItem *item = node->GetData(); wxObject *content=NULL; if((content = item->GetWindow())) if(ptr2ref.end() == ptr2ref.find(content)) { wxString msg; wxClassInfo *cinfo = ((wxObject *)ptr)->GetClassInfo(); msg.Printf(wxT("Double usage detected of window at %p in sizer {wx_ref, %d, %s}"), content, ref, cinfo->GetClassName()); send_msg("error", &msg); ((wxSizer*)ptr)->Detach((wxWindow*)content); } if((content = item->GetSizer())) if(ptr2ref.end() == ptr2ref.find(content)) { wxString msg; wxClassInfo *cinfo = ((wxObject *)ptr)->GetClassInfo(); msg.Printf(wxT("Double usage detected of sizer at %p in sizer {wx_ref, %d, %s}"), content, ref, cinfo->GetClassName()); send_msg("error", &msg); ((wxSizer*)ptr)->Detach((wxSizer*)content); } } } delete refd; ptr2ref.erase(it); } } void * WxeApp::getPtr(char * bp, wxeMemEnv *memenv) { int index = *(int *) bp; if(!memenv) { throw wxe_badarg(index); } void * temp = memenv->ref2ptr[index]; if((index < memenv->next) && ((index == 0) || (temp > NULL))) return temp; else { throw wxe_badarg(index); } } void WxeApp::registerPid(char * bp, ErlDrvTermData pid, wxeMemEnv * memenv) { int index = *(int *) bp; if(!memenv) throw wxe_badarg(index); void * temp = memenv->ref2ptr[index]; if((index < memenv->next) && ((index == 0) || (temp > NULL))) { ptrMap::iterator it; it = ptr2ref.find(temp); if(it != ptr2ref.end()) { wxeRefData *refd = it->second; refd->pid = pid; return ; } }; throw wxe_badarg(index); } /* ************************************************************ * Misc utility classes * ************************************************************/ /* **************************************************************************** * Memory handling * ****************************************************************************/ wxeMemEnv::wxeMemEnv() { ref2ptr = (void **) driver_alloc(128*sizeof(void *)); ref2ptr[0] = NULL; next = 1; max = 128; } wxeMemEnv::~wxeMemEnv() { driver_free(ref2ptr); } /* **************************************************************************** * Erlang Commands (don't need to be derived of wxEvent anymore should * be re-written to own class struct) * ****************************************************************************/ wxeCommand::wxeCommand(int fc,char * cbuf,int buflen, wxe_data *sd) : wxObject() { WXEBinRef *temp, *start, *prev; int n = 0; caller = driver_caller(sd->port); port = sd->port; op = fc; len = buflen; bin[0] = NULL; bin[1] = NULL; bin[2] = NULL; if(cbuf) { buffer = (char *) driver_alloc(len); memcpy((void *) buffer, (void *) cbuf, len);; temp = sd->bin; prev = NULL; start = temp; while(temp) { if(caller == temp->from) { bin[n++] = temp; if(prev) { prev->next = temp->next; } else { start = temp->next; } temp = temp->next; } else { prev = temp; temp = temp->next; } } sd->bin = start; } else { // No-op only PING currently buffer = NULL; } } wxeCommand::~wxeCommand() { int n = 0; if(buffer) { while(bin[n]) { if(bin[n]->bin) driver_free_binary(bin[n]->bin); driver_free(bin[n++]); } driver_free(buffer); } } /* **************************************************************************** * TreeItemData * ****************************************************************************/ wxETreeItemData::wxETreeItemData(int sz, char * data) { size = sz; bin = (char *) driver_alloc(sz); memcpy(bin, data, sz); } wxETreeItemData::~wxETreeItemData() { driver_free(bin); } /* **************************************************************************** * CallbackData * * ****************************************************************************/ wxeCallbackData::wxeCallbackData(ErlDrvTermData caller,void * req, char *req_type, int funcb, int skip_ev, wxeErlTerm * userData) : wxObject() { listener = caller; obj = req; fun_id = funcb; strcpy(class_name, req_type); skip = skip_ev; user_data = userData; } wxeCallbackData::~wxeCallbackData() { // fprintf(stderr, "CBD Deleteing %x %s\r\n", (unsigned int) this, class_name); fflush(stderr); if(user_data) { delete user_data; } } /* **************************************************************************** * wxListCtrlCompare wrapper * ****************************************************************************/ int wxCALLBACK wxEListCtrlCompare(long item1, long item2, long callbackInfoPtr) { callbackInfo * cb = (callbackInfo *)callbackInfoPtr; wxeMemEnv * memenv = ((WxeApp *) wxTheApp)->getMemEnv(cb->port); wxeReturn rt = wxeReturn(WXE_DRV_PORT, memenv->owner, false); rt.addInt(cb->callbackID); rt.addInt(item1); rt.addInt(item2); rt.endList(2); rt.addAtom("_wx_invoke_cb_"); rt.addTupleCount(3); rt.send(); handle_event_callback(cb->port, memenv->owner); if(((WxeApp *) wxTheApp)->cb_buff) { int res = * (int*) ((WxeApp *) wxTheApp)->cb_buff; driver_free(((WxeApp *) wxTheApp)->cb_buff); ((WxeApp *) wxTheApp)->cb_buff = NULL; return res; } return 0; }