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boinc/clientgui/AsyncRPC.cpp

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// This file is part of BOINC.
// http://boinc.berkeley.edu
// Copyright (C) 2008 University of California
//
// BOINC is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License
// as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
//
// BOINC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
#if defined(__GNUG__) && !defined(__APPLE__)
#pragma implementation "AsyncRPC.h"
#endif
#if !(defined(_WIN32) || (defined(__WXMAC__) && (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_4)))
#include <xlocale.h>
//#include "gui_rpc_client.h"
#endif
#include "stdwx.h"
#include "BOINCGUIApp.h"
#include "MainDocument.h"
#include "AsyncRPC.h"
#include "BOINCBaseFrame.h"
#include "BOINCTaskBar.h"
#include "error_numbers.h"
#include "SkinManager.h"
#include "DlgEventLog.h"
#include "util.h"
extern bool s_bSkipExitConfirmation;
#ifdef __WXMAC__
#ifdef HAVE_PTHREAD_MUTEXATTR_T
// on some systems pthread_mutexattr_settype() is not in the headers (but it is
// in the library, otherwise we wouldn't compile this code at all)
extern "C" int pthread_mutexattr_settype( pthread_mutexattr_t *, int );
#endif
BOINC_Mutex::BOINC_Mutex( wxMutexType mutexType )
{
int err;
switch ( mutexType )
{
case wxMUTEX_RECURSIVE:
// support recursive locks like Win32, i.e. a thread can lock a
// mutex which it had itself already locked
//
// unfortunately initialization of recursive mutexes is non
// portable, so try several methods
#ifdef HAVE_PTHREAD_MUTEXATTR_T
{
pthread_mutexattr_t attr;
pthread_mutexattr_init( &attr );
pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_RECURSIVE );
err = pthread_mutex_init( &m_mutex, &attr );
}
#elif defined(HAVE_PTHREAD_RECURSIVE_MUTEX_INITIALIZER)
// we can use this only as initializer so we have to assign it
// first to a temp var - assigning directly to m_mutex wouldn't
// even compile
{
pthread_mutex_t mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
m_mutex = mutex;
}
#else // no recursive mutexes
err = EINVAL;
#endif // HAVE_PTHREAD_MUTEXATTR_T/...
break;
default:
wxFAIL_MSG( wxT("unknown mutex type") );
// fall through
case wxMUTEX_DEFAULT:
err = pthread_mutex_init( &m_mutex, NULL );
break;
}
m_isOk = err == 0;
if ( !m_isOk )
{
wxLogApiError( wxT("pthread_mutex_init()"), err );
}
}
BOINC_Mutex::~BOINC_Mutex()
{
if ( m_isOk )
{
int err = pthread_mutex_destroy( &m_mutex );
if ( err != 0 )
{
wxLogApiError( wxT("pthread_mutex_destroy()"), err );
}
}
}
wxMutexError BOINC_Mutex::Lock()
{
int err = pthread_mutex_lock( &m_mutex );
switch ( err )
{
case EDEADLK:
// only error checking mutexes return this value and so it's an
// unexpected situation -- hence use assert, not wxLogDebug
wxFAIL_MSG( wxT("mutex deadlock prevented") );
return wxMUTEX_DEAD_LOCK;
case EINVAL:
wxLogDebug( wxT("pthread_mutex_lock(): mutex not initialized.") );
break;
case 0:
return wxMUTEX_NO_ERROR;
default:
wxLogApiError( wxT("pthread_mutex_lock()"), err );
}
return wxMUTEX_MISC_ERROR;
}
wxMutexError BOINC_Mutex::TryLock()
{
int err = pthread_mutex_trylock( &m_mutex );
switch ( err )
{
case EBUSY:
// not an error: mutex is already locked, but we're prepared for this case
return wxMUTEX_BUSY;
case EINVAL:
wxLogDebug( wxT("pthread_mutex_trylock(): mutex not initialized.") );
break;
case 0:
return wxMUTEX_NO_ERROR;
default:
wxLogApiError( wxT("pthread_mutex_trylock()"), err );
}
return wxMUTEX_MISC_ERROR;
}
wxMutexError BOINC_Mutex::Unlock()
{
int err = pthread_mutex_unlock( &m_mutex );
switch ( err )
{
case EPERM:
// we don't own the mutex
return wxMUTEX_UNLOCKED;
case EINVAL:
wxLogDebug( wxT("pthread_mutex_unlock(): mutex not initialized.") );
break;
case 0:
return wxMUTEX_NO_ERROR;
default:
wxLogApiError( wxT("pthread_mutex_unlock()"), err );
}
return wxMUTEX_MISC_ERROR;
}
// wxMac wxCondition has bugs, so use native UNIX implementation
BOINC_Condition::BOINC_Condition(BOINC_Mutex& mutex)
: m_BOINC_Mutex(mutex) {
int err;
err = pthread_cond_init(&m_cond, NULL);
mb_initOK = (err == 0);
}
BOINC_Condition::~BOINC_Condition() {
pthread_cond_destroy(&m_cond);
mb_initOK = false;
}
wxCondError BOINC_Condition::Wait(){
int err;
err = pthread_cond_wait(&m_cond, &m_BOINC_Mutex.m_mutex);
switch (err) {
case 0:
return wxCOND_NO_ERROR;
case EINVAL:
return wxCOND_INVALID;
case ETIMEDOUT:
return wxCOND_TIMEOUT;
default:
return wxCOND_MISC_ERROR;
}
return wxCOND_NO_ERROR;
}
wxCondError BOINC_Condition::WaitTimeout(unsigned long milliseconds) {
int err;
wxLongLong curtime = wxGetLocalTimeMillis();
curtime += milliseconds;
wxLongLong temp = curtime / 1000;
int sec = temp.GetLo();
temp *= 1000;
temp = curtime - temp;
int millis = temp.GetLo();
timespec tspec;
tspec.tv_sec = sec;
tspec.tv_nsec = millis * 1000L * 1000L;
err = pthread_cond_timedwait(&m_cond, &m_BOINC_Mutex.m_mutex, &tspec);
switch (err) {
case 0:
return wxCOND_NO_ERROR;
case EINVAL:
return wxCOND_INVALID;
case ETIMEDOUT:
return wxCOND_TIMEOUT;
default:
return wxCOND_MISC_ERROR;
}
return wxCOND_NO_ERROR;
}
void BOINC_Condition::Signal() {
pthread_cond_signal(&m_cond);
}
void BOINC_Condition::Broadcast() {
pthread_cond_broadcast(&m_cond);
}
#endif // __WXMAC__
// Delay in milliseconds before showing AsyncRPCDlg
#define RPC_WAIT_DLG_DELAY 1500
// How often to check for events when minimized and waiting for Demand RPC
#define DELAY_WHEN_MINIMIZED 500
// Delay in milliseconds to allow thread to exit before killing it
#define RPC_KILL_DELAY 2000
ASYNC_RPC_REQUEST::ASYNC_RPC_REQUEST() {
clear();
}
ASYNC_RPC_REQUEST::~ASYNC_RPC_REQUEST() {
clear();
}
void ASYNC_RPC_REQUEST::clear() {
rpcType = (ASYNC_RPC_TYPE) 0;
which_rpc = (RPC_SELECTOR) 0;
exchangeBuf = NULL;
arg1 = NULL;
arg2 = NULL;
arg3 = NULL;
arg4 = NULL;
completionTime = NULL;
RPCExecutionTime = NULL;
resultPtr = NULL;
retval = 0;
isActive = false;
}
bool ASYNC_RPC_REQUEST::isSameAs(ASYNC_RPC_REQUEST& otherRequest) {
if (which_rpc != otherRequest.which_rpc) return false;
if (arg1 != otherRequest.arg1) return false;
if (exchangeBuf != otherRequest.exchangeBuf) return false;
if (arg2 != otherRequest.arg2) return false;
if (arg3 != otherRequest.arg3) return false;
if (arg4 != otherRequest.arg4) return false;
if (rpcType != otherRequest.rpcType) return false;
if (completionTime != otherRequest.completionTime) return false;
if (resultPtr != otherRequest.resultPtr) return false;
// OK if isActive and retval don't match.
return true;
}
AsyncRPC::AsyncRPC(CMainDocument *pDoc) {
m_pDoc = pDoc;
}
AsyncRPC::~AsyncRPC() {}
int AsyncRPC::RPC_Wait(RPC_SELECTOR which_rpc, void *arg1, void *arg2,
void *arg3, void *arg4, bool hasPriority
) {
ASYNC_RPC_REQUEST request;
int retval = 0;
request.which_rpc = which_rpc;
request.arg1 = arg1;
request.arg2 = arg2;
request.arg3 = arg3;
request.arg4 = arg4;
if (which_rpc == RPC_QUIT) {
request.rpcType = RPC_TYPE_ASYNC_NO_REFRESH;
} else {
request.rpcType = RPC_TYPE_WAIT_FOR_COMPLETION;
}
request.RPCExecutionTime = NULL;
retval = m_pDoc->RequestRPC(request, hasPriority);
return retval;
}
RPCThread::RPCThread(CMainDocument *pDoc,
BOINC_Mutex* pRPC_Thread_Mutex,
BOINC_Condition* pRPC_Thread_Condition,
BOINC_Mutex* pRPC_Request_Mutex,
BOINC_Condition* pRPC_Request_Condition)
: wxThread() {
m_pDoc = pDoc;
m_pRPC_Thread_Mutex = pRPC_Thread_Mutex;
m_pRPC_Thread_Condition = pRPC_Thread_Condition;
m_pRPC_Request_Mutex = pRPC_Request_Mutex;
m_pRPC_Request_Condition = pRPC_Request_Condition;
}
void *RPCThread::Entry() {
int retval = 0;
CRPCFinishedEvent RPC_done_event( wxEVT_RPC_FINISHED );
ASYNC_RPC_REQUEST *current_request;
double startTime = 0;
wxMutexError mutexErr = wxMUTEX_NO_ERROR;
wxCondError condErr = wxCOND_NO_ERROR;
#ifndef NO_PER_THREAD_LOCALE
#ifdef __WXMSW__
// On Windows, set all locales for this thread on a per-thread basis
_configthreadlocale(_ENABLE_PER_THREAD_LOCALE);
setlocale(LC_ALL, "C");
#else
// We initialize RPC_Thread_Locale to fix a compiler warning
locale_t RPC_Thread_Locale = LC_GLOBAL_LOCALE;
#if defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_4)
if (uselocale) // uselocale() is not available in Mac OS 10.3.9
#endif
{
// On Mac / Unix / Linux, set "C" locale for this thread only
RPC_Thread_Locale = newlocale(LC_ALL_MASK, "C", NULL);
uselocale(RPC_Thread_Locale);
}
#endif // ifndef __WXMSW__
#endif // ifndef NO_PER_THREAD_LOCALE
m_pRPC_Thread_Mutex->Lock();
m_pDoc->m_bRPCThreadIsReady = true;
while(true) {
// Wait for main thread to wake us
// This does the following:
// (1) Unlocks the Mutex and puts the RPC thread to sleep as an atomic operation.
// (2) On Signal from main thread: locks Mutex again and wakes the RPC thread.
condErr = m_pRPC_Thread_Condition->Wait();
wxASSERT(condErr == wxCOND_NO_ERROR);
if (m_pDoc->m_bShutDownRPCThread) {
#if !defined(NO_PER_THREAD_LOCALE) && !defined(__WXMSW__)
#if defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_4)
if (uselocale) // uselocale() is not available in Mac OS 10.3.9
#endif
{
uselocale(LC_GLOBAL_LOCALE);
freelocale(RPC_Thread_Locale);
}
#endif
m_pRPC_Thread_Mutex->Unlock(); // Just for safety - not really needed
// Tell CMainDocument that thread has gracefully ended
// We do this here because OnExit() is not called on Windows
m_pDoc->m_RPCThread = NULL;
return 0;
}
current_request = m_pDoc->GetCurrentRPCRequest();
if (!current_request->isActive) continue; // Should never happen
if (current_request->RPCExecutionTime) {
startTime = dtime();
}
retval = ProcessRPCRequest();
if (current_request->RPCExecutionTime) {
*(current_request->RPCExecutionTime) = dtime() - startTime;
}
current_request->retval = retval;
mutexErr = m_pRPC_Request_Mutex->Lock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
current_request->isActive = false;
wxPostEvent( wxTheApp, RPC_done_event );
// Signal() is ignored / discarded unless the main thread is
// currently blocked by m_pRPC_Request_Condition->Wait[Timeout]()
m_pRPC_Request_Condition->Signal();
mutexErr = m_pRPC_Request_Mutex->Unlock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
}
return NULL;
}
int RPCThread::ProcessRPCRequest() {
int retval = 0;
ASYNC_RPC_REQUEST *current_request = m_pDoc->GetCurrentRPCRequest();
switch (current_request->which_rpc) {
// RPC_SELECTORS with no arguments
case RPC_RUN_BENCHMARKS:
case RPC_QUIT:
case RPC_NETWORK_AVAILABLE:
case RPC_PROJECT_ATTACH_FROM_FILE:
case RPC_READ_GLOBAL_PREFS_OVERRIDE:
case RPC_READ_CC_CONFIG:
break;
default:
// All others must have at least one argument
if (current_request->arg1 == NULL) {
wxASSERT(false);
return -1;
}
break;
}
switch (current_request->which_rpc) {
case RPC_AUTHORIZE:
retval = (m_pDoc->rpcClient).authorize((const char*)(current_request->arg1));
break;
case RPC_EXCHANGE_VERSIONS:
retval = (m_pDoc->rpcClient).exchange_versions(*(VERSION_INFO*)(current_request->arg1));
break;
case RPC_GET_STATE:
retval = (m_pDoc->rpcClient).get_state(*(CC_STATE*)(current_request->arg1));
break;
case RPC_GET_RESULTS:
retval = (m_pDoc->rpcClient).get_results(*(RESULTS*)(current_request->arg1), *(bool*)(current_request->arg2));
break;
case RPC_GET_FILE_TRANSFERS:
retval = (m_pDoc->rpcClient).get_file_transfers(*(FILE_TRANSFERS*)(current_request->arg1));
break;
case RPC_GET_SIMPLE_GUI_INFO1:
retval = (m_pDoc->rpcClient).get_simple_gui_info(*(SIMPLE_GUI_INFO*)(current_request->arg1));
break;
case RPC_GET_SIMPLE_GUI_INFO2:
// RPC_GET_SIMPLE_GUI_INFO2 is equivalent to doing both
// RPC_GET_PROJECT_STATUS1 and RPC_GET_RESULTS
retval = (m_pDoc->rpcClient).get_results(*(RESULTS*)(current_request->arg3));
if (!retval) {
retval = (m_pDoc->rpcClient).get_project_status(*(PROJECTS*)(current_request->arg1));
}
break;
case RPC_GET_PROJECT_STATUS1:
retval = (m_pDoc->rpcClient).get_project_status(*(PROJECTS*)(current_request->arg1));
break;
case RPC_GET_PROJECT_STATUS2:
retval = (m_pDoc->rpcClient).get_project_status(*(PROJECTS*)(current_request->arg1));
break;
case RPC_GET_ALL_PROJECTS_LIST:
retval = (m_pDoc->rpcClient).get_all_projects_list(*(ALL_PROJECTS_LIST*)(current_request->arg1));
break;
case RPC_GET_DISK_USAGE:
retval = (m_pDoc->rpcClient).get_disk_usage(*(DISK_USAGE*)(current_request->arg1));
break;
case RPC_PROJECT_OP:
retval = (m_pDoc->rpcClient).project_op(
*(PROJECT*)(current_request->arg1),
(const char*)(current_request->arg2)
);
break;
case RPC_SET_RUN_MODE:
retval = (m_pDoc->rpcClient).set_run_mode(
*(int*)(current_request->arg1),
*(double*)(current_request->arg2)
);
break;
case RPC_SET_GPU_MODE:
retval = (m_pDoc->rpcClient).set_gpu_mode(
*(int*)(current_request->arg1),
*(double*)(current_request->arg2)
);
break;
case RPC_SET_NETWORK_MODE:
retval = (m_pDoc->rpcClient).set_network_mode(
*(int*)(current_request->arg1),
*(double*)(current_request->arg2)
);
break;
case RPC_GET_SCREENSAVER_TASKS:
retval = (m_pDoc->rpcClient).get_screensaver_tasks(
*(int*)(current_request->arg1),
*(RESULTS*)(current_request->arg2)
);
break;
case RPC_RUN_BENCHMARKS:
retval = (m_pDoc->rpcClient).run_benchmarks();
break;
case RPC_SET_PROXY_SETTINGS:
retval = (m_pDoc->rpcClient).set_proxy_settings(*(GR_PROXY_INFO*)(current_request->arg1));
break;
case RPC_GET_PROXY_SETTINGS:
retval = (m_pDoc->rpcClient).get_proxy_settings(*(GR_PROXY_INFO*)(current_request->arg1));
break;
case RPC_GET_NOTICES:
retval = (m_pDoc->rpcClient).get_notices(
*(int*)(current_request->arg1),
*(NOTICES*)(current_request->arg2)
);
break;
case RPC_GET_MESSAGES:
retval = (m_pDoc->rpcClient).get_messages(
*(int*)(current_request->arg1),
*(MESSAGES*)(current_request->arg2),
*(bool*)(current_request->arg3)
);
break;
case RPC_FILE_TRANSFER_OP:
retval = (m_pDoc->rpcClient).file_transfer_op(
*(FILE_TRANSFER*)(current_request->arg1),
(const char*)(current_request->arg2)
);
break;
case RPC_RESULT_OP:
retval = (m_pDoc->rpcClient).result_op(
*(RESULT*)(current_request->arg1),
(const char*)(current_request->arg2)
);
break;
case RPC_GET_HOST_INFO:
retval = (m_pDoc->rpcClient).get_host_info(*(HOST_INFO*)(current_request->arg1));
break;
case RPC_QUIT:
retval = (m_pDoc->rpcClient).quit();
break;
case RPC_ACCT_MGR_INFO:
retval = (m_pDoc->rpcClient).acct_mgr_info(*(ACCT_MGR_INFO*)(current_request->arg1));
break;
case RPC_GET_STATISTICS:
retval = (m_pDoc->rpcClient).get_statistics(*(PROJECTS*)(current_request->arg1));
break;
case RPC_NETWORK_AVAILABLE:
retval = (m_pDoc->rpcClient).network_available();
break;
case RPC_GET_PROJECT_INIT_STATUS:
retval = (m_pDoc->rpcClient).get_project_init_status(*(PROJECT_INIT_STATUS*)(current_request->arg1));
break;
case RPC_GET_PROJECT_CONFIG:
retval = (m_pDoc->rpcClient).get_project_config(*(std::string*)(current_request->arg1));
break;
case RPC_GET_PROJECT_CONFIG_POLL:
retval = (m_pDoc->rpcClient).get_project_config_poll(*(PROJECT_CONFIG*)(current_request->arg1));
break;
case RPC_LOOKUP_ACCOUNT:
retval = (m_pDoc->rpcClient).lookup_account(*(ACCOUNT_IN*)(current_request->arg1));
break;
case RPC_LOOKUP_ACCOUNT_POLL:
retval = (m_pDoc->rpcClient).lookup_account_poll(*(ACCOUNT_OUT*)(current_request->arg1));
break;
case RPC_CREATE_ACCOUNT:
retval = (m_pDoc->rpcClient).create_account(*(ACCOUNT_IN*)(current_request->arg1));
break;
case RPC_CREATE_ACCOUNT_POLL:
retval = (m_pDoc->rpcClient).create_account_poll(*(ACCOUNT_OUT*)(current_request->arg1));
break;
case RPC_PROJECT_ATTACH:
retval = (m_pDoc->rpcClient).project_attach(
(const char*)(current_request->arg1),
(const char*)(current_request->arg2),
(const char*)(current_request->arg3)
);
break;
case RPC_PROJECT_ATTACH_FROM_FILE:
retval = (m_pDoc->rpcClient).project_attach_from_file();
break;
case RPC_PROJECT_ATTACH_POLL:
retval = (m_pDoc->rpcClient).project_attach_poll(*(PROJECT_ATTACH_REPLY*)(current_request->arg1));
break;
case RPC_ACCT_MGR_RPC:
retval = (m_pDoc->rpcClient).acct_mgr_rpc(
(const char*)(current_request->arg1),
(const char*)(current_request->arg2),
(const char*)(current_request->arg3),
(bool)(current_request->arg4 != NULL)
);
break;
case RPC_ACCT_MGR_RPC_POLL:
retval = (m_pDoc->rpcClient).acct_mgr_rpc_poll(*(ACCT_MGR_RPC_REPLY*)(current_request->arg1));
break;
case RPC_GET_NEWER_VERSION:
retval = (m_pDoc->rpcClient).get_newer_version(
*(std::string*)(current_request->arg1),
*(std::string*)(current_request->arg2)
);
break;
case RPC_READ_GLOBAL_PREFS_OVERRIDE:
retval = (m_pDoc->rpcClient).read_global_prefs_override();
break;
case RPC_READ_CC_CONFIG:
retval = (m_pDoc->rpcClient).read_cc_config();
break;
case RPC_GET_CC_STATUS:
retval = (m_pDoc->rpcClient).get_cc_status(*(CC_STATUS*)(current_request->arg1));
break;
case RPC_GET_GLOBAL_PREFS_FILE:
retval = (m_pDoc->rpcClient).get_global_prefs_file(*(std::string*)(current_request->arg1));
break;
case RPC_GET_GLOBAL_PREFS_WORKING:
retval = (m_pDoc->rpcClient).get_global_prefs_working(*(std::string*)(current_request->arg1));
break;
case RPC_GET_GLOBAL_PREFS_WORKING_STRUCT:
retval = (m_pDoc->rpcClient).get_global_prefs_working_struct(
*(GLOBAL_PREFS*)(current_request->arg1),
*(GLOBAL_PREFS_MASK*)(current_request->arg2)
);
break;
case RPC_GET_GLOBAL_PREFS_OVERRIDE:
retval = (m_pDoc->rpcClient).get_global_prefs_override(*(std::string*)(current_request->arg1));
break;
case RPC_SET_GLOBAL_PREFS_OVERRIDE:
retval = (m_pDoc->rpcClient).set_global_prefs_override(*(std::string*)(current_request->arg1));
break;
case RPC_GET_GLOBAL_PREFS_OVERRIDE_STRUCT:
retval = (m_pDoc->rpcClient).get_global_prefs_override_struct(
*(GLOBAL_PREFS*)(current_request->arg1),
*(GLOBAL_PREFS_MASK*)(current_request->arg2)
);
break;
case RPC_SET_GLOBAL_PREFS_OVERRIDE_STRUCT:
retval = (m_pDoc->rpcClient).set_global_prefs_override_struct(
*(GLOBAL_PREFS*)(current_request->arg1),
*(GLOBAL_PREFS_MASK*)(current_request->arg2)
);
break;
case RPC_GET_CC_CONFIG:
retval = (m_pDoc->rpcClient).get_cc_config(
*(CONFIG*)(current_request->arg1),
*(LOG_FLAGS*)(current_request->arg2)
);
break;
case RPC_SET_CC_CONFIG:
retval = (m_pDoc->rpcClient).set_cc_config(
*(CONFIG*)(current_request->arg1),
*(LOG_FLAGS*)(current_request->arg2)
);
break;
default:
break;
}
return retval;
}
// TODO: combine RPC requests for different buffers, then just copy the buffer.
int CMainDocument::RequestRPC(ASYNC_RPC_REQUEST& request, bool hasPriority) {
std::vector<ASYNC_RPC_REQUEST>::iterator iter;
int retval = 0;
int response = wxID_OK;
wxMutexError mutexErr = wxMUTEX_NO_ERROR;
long delayTimeRemaining, timeToSleep;
bool shown = false;
if (!m_RPCThread) return -1;
if ( (request.rpcType < RPC_TYPE_WAIT_FOR_COMPLETION) ||
(request.rpcType >= NUM_RPC_TYPES) ) {
wxASSERT(false);
return -1;
}
// If we are quitting, cancel any pending RPCs
if (request.which_rpc == RPC_QUIT) {
if (current_rpc_request.isActive) {
RPC_requests.erase(RPC_requests.begin()+1, RPC_requests.end());
} else {
RPC_requests.clear();
}
}
// Check if a duplicate request is already on the queue
for (iter=RPC_requests.begin(); iter!=RPC_requests.end(); iter++) {
if (iter->isSameAs(request)) {
return 0;
}
}
if ((request.rpcType == RPC_TYPE_WAIT_FOR_COMPLETION) && (request.resultPtr == NULL)) {
request.resultPtr = &retval;
}
if (hasPriority) {
// We may want to set hasPriority for some user-initiated events.
// Since the user is waiting, insert this at head of request queue.
// As of 8/14/08, hasPriority is never set true, so hasn't been tested.
iter = RPC_requests.insert(RPC_requests.begin(), request);
} else {
RPC_requests.push_back(request);
}
// Start this RPC if no other RPC is already in progress.
if (RPC_requests.size() == 1) {
// Wait for thread to unlock mutex with m_pRPC_Thread_Condition->Wait()
mutexErr = m_pRPC_Thread_Mutex->Lock(); // Blocks until thread unlocks the mutex
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
// Make sure activation is an atomic operation
request.isActive = false;
current_rpc_request = request;
current_rpc_request.isActive = true;
m_pRPC_Thread_Condition->Signal(); // Unblock the thread
// m_pRPC_Thread_Condition->Wait() will Lock() the mutex upon receiving Signal(),
// causing it to block again if we still have our lock on the mutex.
mutexErr = m_pRPC_Thread_Mutex->Unlock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
}
// If this is a user-initiated event wait for completion but show
// a dialog allowing the user to cancel.
if (request.rpcType == RPC_TYPE_WAIT_FOR_COMPLETION) {
// TODO: proper handling if a second user request is received while first is pending ??
if (m_bWaitingForRPC) {
wxLogMessage(wxT("Second user RPC request while another was pending"));
wxASSERT(false);
return -1;
}
// Don't show dialog if RPC completes before RPC_WAIT_DLG_DELAY
// or while BOINC is minimized
CBOINCBaseFrame* pFrame = wxGetApp().GetFrame();
wxStopWatch Dlgdelay = wxStopWatch();
m_RPCWaitDlg = new AsyncRPCDlg();
m_bWaitingForRPC = true;
// Allow RPC_WAIT_DLG_DELAY seconds for Demand RPC to complete before
// displaying "Please Wait" dialog, but keep checking for completion.
delayTimeRemaining = RPC_WAIT_DLG_DELAY;
while (true) {
if (delayTimeRemaining >= 0) { // Prevent overflow if minimized for a very long time
delayTimeRemaining = RPC_WAIT_DLG_DELAY - Dlgdelay.Time();
}
if (pFrame) {
shown = pFrame->IsShown();
} else {
shown = false;
}
if (shown) {
if (delayTimeRemaining <= 0) break; // Display the Please Wait dialog
timeToSleep = delayTimeRemaining;
} else {
// Don't show dialog while Manager is minimized, but do
// process events so user can maximize the manager.
//
// NOTE: CBOINCGUIApp::FilterEvent() discards those events
// which might cause posting of more RPC requests while
// we are in this loop, to prevent undesirable recursion.
// Since the manager is minimized, we don't have to worry about
// discarding crucial drawing or command events.
// The filter does allow the the Open Manager menu item from
// the system tray icon and wxEVT_RPC_FINISHED event.
//
timeToSleep = DELAY_WHEN_MINIMIZED; // Allow user to maximize Manager
wxSafeYield(NULL, true);
}
// OnRPCComplete() clears m_bWaitingForRPC if RPC completed
if (! m_bWaitingForRPC) {
return retval;
}
mutexErr = m_pRPC_Request_Mutex->Lock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
// Simulate handling of CRPCFinishedEvent but don't allow any other
// events (so no user activity) to prevent undesirable recursion.
// Since we don't need to filter and discard events, they remain on
// the queue until it is safe to process them.
// Allow RPC thread to run while we wait for it.
if (!current_rpc_request.isActive) {
mutexErr = m_pRPC_Request_Mutex->Unlock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
HandleCompletedRPC();
continue;
}
// Wait for RPC thread to wake us
// This does the following:
// (1) Unlocks the Mutex and puts the main thread to sleep as an atomic operation.
// (2) On Signal from RPC thread: locks Mutex again and wakes the main thread.
m_pRPC_Request_Condition->WaitTimeout(timeToSleep);
mutexErr = m_pRPC_Request_Mutex->Unlock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
}
// Demand RPC has taken longer than RPC_WAIT_DLG_DELAY seconds and
// Manager is not minimized, so display the "Please Wait" dialog
// with a Cancel button. If the RPC does complete while the dialog
// is up, HandleCompletedRPC() will call EndModal with wxID_OK.
//
// NOTE: the Modal dialog permits processing of all events, but
// CBOINCGUIApp::FilterEvent() blocks those events which might cause
// posting of more RPC requests while in this dialog, to prevent
// undesirable recursion.
//
if (m_RPCWaitDlg) {
response = m_RPCWaitDlg->ShowModal();
// Remember time the dialog was closed for use by RunPeriodicRPCs()
m_dtLasAsyncRPCDlgTime = wxDateTime::Now();
if (response != wxID_OK) {
// TODO: If user presses Cancel in Please Wait dialog but request
// has not yet been started, should we just remove it from queue?
// If we make that change, should we also add a separate menu item
// to reset the RPC connection (or does one already exist)?
retval = -1;
// If the RPC continues to get data after we return to
// our caller, it may try to write into a buffer or struct
// which the caller has already deleted. To prevent this,
// we close the socket (disconnect) and kill the RPC thread.
// This is ugly but necessary. We must then reconnect and
// start a new RPC thread.
if (current_rpc_request.isActive) {
current_rpc_request.isActive = false;
rpcClient.close();
RPC_requests.clear();
current_rpc_request.clear();
m_bNeedRefresh = false;
m_bNeedTaskBarRefresh = false;
// We will be reconnected to the same client (if possible) by
// CBOINCDialUpManager::OnPoll() and CNetworkConnection::Poll().
m_pNetworkConnection->SetStateDisconnected();
}
if (response == wxID_EXIT) {
pFrame = wxGetApp().GetFrame();
wxCommandEvent evt(wxEVT_COMMAND_MENU_SELECTED, wxID_EXIT);
s_bSkipExitConfirmation = true;
pFrame->AddPendingEvent(evt);
}
}
if (m_RPCWaitDlg) {
m_RPCWaitDlg->Destroy();
}
m_RPCWaitDlg = NULL;
m_bWaitingForRPC = false;
}
}
return retval;
}
void CMainDocument::KillRPCThread() {
wxMutexError mutexErr = wxMUTEX_NO_ERROR;
int i;
if (!m_RPCThread) {
return;
}
m_bNeedRefresh = false;
m_bNeedTaskBarRefresh = false;
rpcClient.close(); // Abort any async RPC in progress (in case hung)
// On some platforms, Delete() takes effect only when thread calls TestDestroy()
// Wait for thread to unlock mutex with m_pRPC_Thread_Condition->Wait()
mutexErr = m_pRPC_Thread_Mutex->Lock(); // Blocks until thread unlocks the mutex
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
m_bShutDownRPCThread = true;
m_pRPC_Thread_Condition->Signal(); // Unblock the thread
mutexErr = m_pRPC_Thread_Mutex->Unlock(); // Release the mutex so thread can lock it
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
RPC_requests.clear();
current_rpc_request.clear();
// Wait up to RPC_KILL_DELAY milliseconds for thread to exit on its own
for (i=0; i< RPC_KILL_DELAY; ++i) {
boinc_sleep(.001); // Defer to RPC thread for 1 millisecond
if (!m_RPCThread) {
return; // RPC thread sets m_RPCThread to NULL when it exits
}
}
// Thread failed to exit, so forcefully kill it
m_RPCThread->Kill();
}
void CMainDocument::OnRPCComplete(CRPCFinishedEvent&) {
HandleCompletedRPC();
}
void CMainDocument::HandleCompletedRPC() {
int retval = 0;
wxMutexError mutexErr = wxMUTEX_NO_ERROR;
int i, n, requestIndex = -1;
bool stillWaitingForPendingRequests = false;
if (!m_RPCThread) return;
if (current_rpc_request.isActive) return;
// We can get here either via a CRPCFinishedEvent event posted
// by the RPC thread or by a call from RequestRPC. If we were
// called from RequestRPC, the CRPCFinishedEvent will still be
// on the event queue, so we get called twice. Check for this here.
if (current_rpc_request.which_rpc == 0) return; // already handled by a call from RequestRPC
// Find our completed request in the queue
n = (int) RPC_requests.size();
for (i=0; i<n; ++i) {
if (RPC_requests[i].isSameAs(current_rpc_request)) {
requestIndex = i;
} else {
if (RPC_requests[i].rpcType == RPC_TYPE_WAIT_FOR_COMPLETION) {
stillWaitingForPendingRequests = true;
}
}
}
if (! stillWaitingForPendingRequests) {
if (m_RPCWaitDlg) {
if (m_RPCWaitDlg->IsShown()) {
m_RPCWaitDlg->EndModal(wxID_OK);
}
m_RPCWaitDlg->Destroy();
m_RPCWaitDlg = NULL;
}
m_bWaitingForRPC = false;
}
if (requestIndex >= 0) {
// Remove completed request from the queue
RPC_requests.erase(RPC_requests.begin()+requestIndex);
}
retval = current_rpc_request.retval;
if (current_rpc_request.completionTime) {
*(current_rpc_request.completionTime) = wxDateTime::Now();
}
if (current_rpc_request.resultPtr) {
*(current_rpc_request.resultPtr) = retval;
}
// Post-processing
if (! retval) {
if (current_rpc_request.rpcType == RPC_TYPE_ASYNC_WITH_REFRESH_AFTER) {
if (!retval) {
m_bNeedRefresh = true;
}
}
if (current_rpc_request.rpcType == RPC_TYPE_ASYNC_WITH_UPDATE_TASKBAR_ICON_AFTER) {
if (!retval) {
m_bNeedTaskBarRefresh = true;
}
}
switch (current_rpc_request.which_rpc) {
case RPC_GET_STATE:
if (current_rpc_request.exchangeBuf && !retval) {
CC_STATE* arg1 = (CC_STATE*)current_rpc_request.arg1;
CC_STATE* exchangeBuf = (CC_STATE*)current_rpc_request.exchangeBuf;
arg1->projects.swap(exchangeBuf->projects);
arg1->apps.swap(exchangeBuf->apps);
arg1->app_versions.swap(exchangeBuf->app_versions);
arg1->wus.swap(exchangeBuf->wus);
arg1->results.swap(exchangeBuf->results);
exchangeBuf->global_prefs = arg1->global_prefs;
exchangeBuf->version_info = arg1->version_info;
exchangeBuf->executing_as_daemon = arg1->executing_as_daemon;
exchangeBuf->have_nvidia = arg1->have_nvidia;
exchangeBuf->have_ati = arg1->have_ati;
}
break;
case RPC_GET_RESULTS:
if (current_rpc_request.exchangeBuf && !retval) {
RESULTS* arg1 = (RESULTS*)current_rpc_request.arg1;
RESULTS* exchangeBuf = (RESULTS*)current_rpc_request.exchangeBuf;
arg1->results.swap(exchangeBuf->results);
}
break;
case RPC_GET_FILE_TRANSFERS:
if (current_rpc_request.exchangeBuf && !retval) {
FILE_TRANSFERS* arg1 = (FILE_TRANSFERS*)current_rpc_request.arg1;
FILE_TRANSFERS* exchangeBuf = (FILE_TRANSFERS*)current_rpc_request.exchangeBuf;
arg1->file_transfers.swap(exchangeBuf->file_transfers);
}
break;
case RPC_GET_SIMPLE_GUI_INFO2:
if (!retval) {
retval = CopyProjectsToStateBuffer(*(PROJECTS*)(current_rpc_request.arg1), *(CC_STATE*)(current_rpc_request.arg2));
}
if (current_rpc_request.exchangeBuf && !retval) {
RESULTS* arg3 = (RESULTS*)current_rpc_request.arg3;
RESULTS* exchangeBuf = (RESULTS*)current_rpc_request.exchangeBuf;
arg3->results.swap(exchangeBuf->results);
}
break;
case RPC_GET_PROJECT_STATUS1:
if (!retval) {
retval = CopyProjectsToStateBuffer(*(PROJECTS*)(current_rpc_request.arg1), *(CC_STATE*)(current_rpc_request.arg2));
}
break;
case RPC_GET_ALL_PROJECTS_LIST:
if (current_rpc_request.exchangeBuf && !retval) {
ALL_PROJECTS_LIST* arg1 = (ALL_PROJECTS_LIST*)current_rpc_request.arg1;
ALL_PROJECTS_LIST* exchangeBuf = (ALL_PROJECTS_LIST*)current_rpc_request.exchangeBuf;
arg1->projects.swap(exchangeBuf->projects);
}
break;
case RPC_GET_DISK_USAGE:
if (current_rpc_request.exchangeBuf && !retval) {
DISK_USAGE* arg1 = (DISK_USAGE*)current_rpc_request.arg1;
DISK_USAGE* exchangeBuf = (DISK_USAGE*)current_rpc_request.exchangeBuf;
arg1->projects.swap(exchangeBuf->projects);
exchangeBuf->d_total = arg1->d_total;
exchangeBuf->d_free = arg1->d_free;
exchangeBuf->d_boinc = arg1->d_boinc;
exchangeBuf->d_allowed = arg1->d_allowed;
}
break;
case RPC_GET_NOTICES:
if (current_rpc_request.exchangeBuf && !retval) {
NOTICES* arg2 = (NOTICES*)current_rpc_request.arg2;
NOTICES* exchangeBuf = (NOTICES*)current_rpc_request.exchangeBuf;
arg2->notices.swap(exchangeBuf->notices);
}
if (!retval) {
CachedNoticeUpdate(); // Call this only when notice buffer is stable
}
break;
case RPC_GET_MESSAGES:
if (current_rpc_request.exchangeBuf && !retval) {
MESSAGES* arg2 = (MESSAGES*)current_rpc_request.arg2;
MESSAGES* exchangeBuf = (MESSAGES*)current_rpc_request.exchangeBuf;
arg2->messages.swap(exchangeBuf->messages);
}
if (!retval) {
CachedMessageUpdate(); // Call this only when message buffer is stable
}
break;
case RPC_GET_HOST_INFO:
if (current_rpc_request.exchangeBuf && !retval) {
HOST_INFO* arg1 = (HOST_INFO*)current_rpc_request.arg1;
HOST_INFO* exchangeBuf = (HOST_INFO*)current_rpc_request.exchangeBuf;
*exchangeBuf = *arg1;
}
break;
case RPC_GET_STATISTICS:
if (current_rpc_request.exchangeBuf && !retval) {
PROJECTS* arg1 = (PROJECTS*)current_rpc_request.arg1;
PROJECTS* exchangeBuf = (PROJECTS*)current_rpc_request.exchangeBuf;
arg1->projects.swap(exchangeBuf->projects);
}
break;
case RPC_GET_CC_STATUS:
if (current_rpc_request.exchangeBuf && !retval) {
CC_STATUS* arg1 = (CC_STATUS*)current_rpc_request.arg1;
CC_STATUS* exchangeBuf = (CC_STATUS*)current_rpc_request.exchangeBuf;
*exchangeBuf = *arg1;
}
break;
case RPC_ACCT_MGR_INFO:
if (current_rpc_request.exchangeBuf && !retval) {
ACCT_MGR_INFO* arg1 = (ACCT_MGR_INFO*)current_rpc_request.arg1;
ACCT_MGR_INFO* exchangeBuf = (ACCT_MGR_INFO*)current_rpc_request.exchangeBuf;
*exchangeBuf = *arg1;
}
break;
default:
// We don't support double buffering for other RPC calls
wxASSERT(current_rpc_request.exchangeBuf == NULL);
break;
}
}
if (current_rpc_request.resultPtr) {
// In case post-processing changed retval
*(current_rpc_request.resultPtr) = retval;
}
// We must call ProcessEvent() rather than AddPendingEvent() here to
// guarantee integrity of data when other events are handled (such as
// Abort, Suspend/Resume, Show Graphics, Update, Detach, Reset, No
// New Work, etc.) Otherwise, if one of those events is pending it
// might be processed first, and the data in the selected rows may not
// match the data which the user selected if any rows were added or
// deleted due to the RPC.
// The refresh event called here adjusts the selections to fix any
// such mismatch before other pending events are processed.
//
// However, the refresh code may itself request a Demand RPC, which
// would cause undesirable recursion if we are already waiting for
// another Demand RPC to complete. In that case, we defer the refresh
// until all pending Demand RPCs have been done.
//
if (m_bNeedRefresh && !m_bWaitingForRPC) {
m_bNeedRefresh = false;
// We must get the frame immediately before using it,
// since it may have been changed by SetActiveGUI().
CBOINCBaseFrame* pFrame = wxGetApp().GetFrame();
if (pFrame) {
CFrameEvent event(wxEVT_FRAME_REFRESHVIEW, pFrame);
pFrame->ProcessEvent(event);
}
}
if (m_bNeedTaskBarRefresh && !m_bWaitingForRPC) {
m_bNeedTaskBarRefresh = false;
CTaskBarIcon* pTaskbar = wxGetApp().GetTaskBarIcon();
if (pTaskbar) {
CTaskbarEvent event(wxEVT_TASKBAR_REFRESH, pTaskbar);
pTaskbar->ProcessEvent(event);
}
}
if (current_rpc_request.rpcType == RPC_TYPE_ASYNC_WITH_REFRESH_EVENT_LOG_AFTER) {
CDlgEventLog* eventLog = wxGetApp().GetEventLog();
if (eventLog) {
eventLog->OnRefresh();
}
}
current_rpc_request.clear();
// Start the next RPC request.
// We can't start this until finished processing the previous RPC's
// event because the two requests may write into the same buffer.
if (RPC_requests.size() > 0) {
// Wait for thread to unlock mutex with m_pRPC_Thread_Condition->Wait()
mutexErr = m_pRPC_Thread_Mutex->Lock(); // Blocks until thread unlocks the mutex
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
// Make sure activation is an atomic operation
RPC_requests[0].isActive = false;
current_rpc_request = RPC_requests[0];
current_rpc_request.isActive = true;
m_pRPC_Thread_Condition->Signal(); // Unblock the thread
// m_pRPC_Thread_Condition->Wait() will Lock() the mutex upon receiving Signal(),
// causing it to block again if we still have our lock on the mutex.
mutexErr = m_pRPC_Thread_Mutex->Unlock();
wxASSERT(mutexErr == wxMUTEX_NO_ERROR);
}
}
int CMainDocument::CopyProjectsToStateBuffer(PROJECTS& p, CC_STATE& state) {
int retval = 0;
unsigned int i;
PROJECT* state_project = NULL;
// flag for delete
for (i=0; i<state.projects.size(); i++) {
state_project = state.projects[i];
state_project->flag_for_delete = true;
}
for (i=0; i<p.projects.size(); i++) {
state_project = state.lookup_project(p.projects[i]->master_url);
if (state_project && (!strcmp(p.projects[i]->master_url, state_project->master_url))) {
// Because the CC_STATE contains several pointers to each element of the
// CC_STATE::projects vector, we must update these elements in place.
*state_project = *(p.projects[i]);
state_project->flag_for_delete = false;
} else {
retval = ERR_NOT_FOUND;
}
continue;
}
// Anything need to be deleted?
if (!retval) {
for (i=0; i<state.projects.size(); i++) {
state_project = state.projects[i];
if (state_project->flag_for_delete) {
retval = ERR_FILE_MISSING;
}
}
}
return retval;
}
BEGIN_EVENT_TABLE(AsyncRPCDlg, wxDialog)
EVT_BUTTON(wxID_EXIT, AsyncRPCDlg::OnExit)
END_EVENT_TABLE()
IMPLEMENT_CLASS(AsyncRPCDlg, wxDialog)
AsyncRPCDlg::AsyncRPCDlg() : wxDialog( NULL, wxID_ANY, wxT(""), wxDefaultPosition ) {
CSkinAdvanced* pSkinAdvanced = wxGetApp().GetSkinManager()->GetAdvanced();
wxString exit_label;
wxASSERT(pSkinAdvanced);
wxString message = wxString(_("Communicating with BOINC client. Please wait ..."));
#ifdef __WXMAC__
exit_label.Printf(_("&Quit %s"), pSkinAdvanced->GetApplicationName().c_str());
#else
exit_label.Printf(_("E&xit %s"), pSkinAdvanced->GetApplicationName().c_str());
#endif
wxString strCaption;
strCaption.Printf(_("%s - Communication"), pSkinAdvanced->GetApplicationName().c_str());
SetTitle(strCaption.c_str());
wxBoxSizer *topsizer = new wxBoxSizer( wxVERTICAL );
wxBoxSizer *icon_text = new wxBoxSizer( wxHORIZONTAL );
icon_text->Add( CreateTextSizer( message ), 0, wxALIGN_CENTER | wxLEFT, 10 );
topsizer->Add( icon_text, 1, wxCENTER | wxLEFT|wxRIGHT|wxTOP, 10 );
wxStdDialogButtonSizer *sizerBtn = CreateStdDialogButtonSizer(0);
wxButton* exitbutton = new wxButton;
exitbutton->Create( this, wxID_EXIT, exit_label, wxDefaultPosition, wxDefaultSize, 0 );
sizerBtn->Add(exitbutton, 0, wxLEFT|wxRIGHT|wxALL, 5);
wxButton* cancelbutton = new wxButton;
cancelbutton->Create( this, wxID_CANCEL, _("Cancel"), wxDefaultPosition, wxDefaultSize, 0 );
sizerBtn->Add(cancelbutton, 0, wxLEFT|wxRIGHT|wxALL, 5);
if ( sizerBtn )
topsizer->Add(sizerBtn, 0, wxEXPAND | wxALL, 10 );
SetAutoLayout( true );
SetSizer( topsizer );
topsizer->SetSizeHints( this );
topsizer->Fit( this );
wxSize size( GetSize() );
if (size.x < size.y*3/2)
{
size.x = size.y*3/2;
SetSize( size );
}
Centre( wxBOTH | wxCENTER_FRAME);
}
void AsyncRPCDlg::OnExit(wxCommandEvent& WXUNUSED(eventUnused)) {
EndModal(wxID_EXIT);
}
#if 0
/// For testing: triggered by Advanced / Options menu item.
void CMainDocument::TestAsyncRPC() {
ALL_PROJECTS_LIST pl;
ASYNC_RPC_REQUEST request;
wxDateTime completionTime = wxDateTime((time_t)0);
int req_retval = 0, rpc_result = 0;
completionTime.ResetTime();
request.which_rpc = RPC_GET_ALL_PROJECTS_LIST;
request.arg1 = &pl;
request.exchangeBuf = NULL;
request.arg2 = NULL;
request.arg3 = NULL;
request.arg4 = NULL;
request.rpcType = RPC_TYPE_WAIT_FOR_COMPLETION;
request.completionTime = &completionTime;
// request.result = NULL;
request.resultPtr = &rpc_result; // For testing async RPCs
request.isActive = false;
//retval = rpcClient.get_all_projects_list(pl);
req_retval = RequestRPC(request, true);
wxString s = completionTime.FormatTime();
wxLogMessage(wxT("Completion time = %s"), s.c_str());
wxLogMessage(wxT("RequestRPC returned %d\n"), req_retval);
::wxSafeYield(NULL, true); // Allow processing of RPC_FINISHED event
wxLogMessage(wxT("rpcClient.get_all_projects_list returned %d\n"), rpc_result);
}
#endif
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