mirror of
https://github.com/debauchee/barrier.git
synced 2024-12-24 19:42:24 +03:00
fixed problem with opening client and server. in some cases it
would fail to open in such a way that it could never succeed but it'd never stop retrying. now terminating when open fails such that it'll never succeed.
This commit is contained in:
parent
f5795a6630
commit
5e40de48f9
@ -3,6 +3,7 @@
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#include "CPlatform.h"
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#include "ProtocolTypes.h"
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#include "Version.h"
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#include "XScreen.h"
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#include "CNetwork.h"
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#include "CNetworkAddress.h"
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#include "CTCPSocketFactory.h"
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@ -125,7 +126,8 @@ realMain(CMutex* mutex)
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s_client->setStreamFilterFactory(NULL);
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// open client
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if (s_client->open()) {
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try {
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s_client->open();
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opened = true;
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// run client
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@ -139,31 +141,33 @@ realMain(CMutex* mutex)
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mutex->lock();
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}
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// get client status
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if (s_client->wasRejected()) {
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// wait a while before retrying. we don't want
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// to bother the server very often if it doesn't
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// want us.
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if (s_restartable) {
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CThread::sleep(60.0);
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}
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else {
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result = kExitFailed;
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}
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}
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// clean up
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s_client->close();
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// get client status
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if (s_client->wasRejected()) {
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// try again later. we don't want to bother
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// the server very often if it doesn't want us.
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throw XScreenUnavailable(60.0);
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}
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else {
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}
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catch (XScreenUnavailable& e) {
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// wait a few seconds before retrying
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if (s_restartable) {
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CThread::sleep(3.0);
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CThread::sleep(e.getRetryTime());
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}
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else {
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result = kExitFailed;
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}
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}
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catch (...) {
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// rethrow thread exceptions
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RETHROW_XTHREAD
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// don't try to restart and fail
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s_restartable = false;
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result = kExitFailed;
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}
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// clean up
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delete s_client;
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@ -4,6 +4,7 @@
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#include "CPlatform.h"
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#include "ProtocolTypes.h"
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#include "Version.h"
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#include "XScreen.h"
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#include "CNetwork.h"
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#include "CTCPSocketFactory.h"
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#include "XSocket.h"
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@ -156,7 +157,8 @@ realMain(CMutex* mutex)
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s_server->setStreamFilterFactory(NULL);
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// open server
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if (s_server->open()) {
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try {
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s_server->open();
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opened = true;
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// run server (unlocked)
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@ -173,15 +175,23 @@ realMain(CMutex* mutex)
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// clean up
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s_server->close();
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}
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else {
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// wait a few seconds before retrying
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catch (XScreenUnavailable& e) {
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// wait before retrying if we're going to retry
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if (s_restartable) {
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CThread::sleep(3.0);
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CThread::sleep(e.getRetryTime());
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}
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else {
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result = kExitFailed;
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}
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}
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catch (...) {
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// rethrow thread exceptions
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RETHROW_XTHREAD
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// don't try to restart and fail
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s_restartable = false;
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result = kExitFailed;
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}
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// clean up
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delete s_server;
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@ -149,19 +149,18 @@ CClient::onClipboardChanged(ClipboardID, const CString&)
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// ignore -- we'll check the clipboard when we leave
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}
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bool
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void
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CClient::open()
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{
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// open the screen
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try {
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log((CLOG_INFO "opening screen"));
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openSecondaryScreen();
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return true;
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}
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catch (XScreenOpenFailure&) {
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// can't open screen yet. wait a few seconds to retry.
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// can't open screen
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log((CLOG_INFO "failed to open screen"));
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return false;
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throw;
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}
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}
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@ -368,7 +367,6 @@ void
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CClient::openSecondaryScreen()
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{
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assert(m_screen == NULL);
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assert(m_screenFactory != NULL);
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// not active
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m_active = false;
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@ -381,7 +379,9 @@ CClient::openSecondaryScreen()
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// create screen
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log((CLOG_DEBUG1 "creating secondary screen"));
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if (m_screenFactory != NULL) {
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m_screen = m_screenFactory->create(this);
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}
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if (m_screen == NULL) {
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throw XScreenOpenFailure();
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}
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@ -402,13 +402,13 @@ CClient::openSecondaryScreen()
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void
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CClient::closeSecondaryScreen()
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{
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assert(m_screen != NULL);
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// close the secondary screen
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try {
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if (m_screen != NULL) {
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log((CLOG_DEBUG1 "closing secondary screen"));
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m_screen->close();
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}
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}
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catch (...) {
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// ignore
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}
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@ -98,7 +98,7 @@ public:
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virtual void onClipboardChanged(ClipboardID, const CString&);
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// IClient overrides
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virtual bool open();
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virtual void open();
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virtual void mainLoop();
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virtual void close();
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virtual void enter(SInt32 xAbs, SInt32 yAbs,
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@ -229,7 +229,7 @@ CXWindowsSecondaryScreen::createWindow()
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int majorOpcode, firstEvent, firstError;
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if (!XQueryExtension(display, XTestExtensionName,
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&majorOpcode, &firstEvent, &firstError)) {
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// FIXME -- subclass exception for more info?
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log((CLOG_ERR "XTEST extension not available"));
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throw XScreenOpenFailure();
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}
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@ -197,7 +197,7 @@ CXWindowsScreen::open()
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log((CLOG_DEBUG "XOpenDisplay(\"%s\")", display));
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m_display = XOpenDisplay(display);
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if (m_display == NULL) {
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throw XScreenOpenFailure();
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throw XScreenUnavailable(60.0);
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}
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// get root window
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@ -43,7 +43,7 @@ public:
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//@}
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// IClient overrides
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virtual bool open() = 0;
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virtual void open() = 0;
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virtual void mainLoop() = 0;
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virtual void close() = 0;
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virtual void enter(SInt32 xAbs, SInt32 yAbs,
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@ -29,7 +29,7 @@ CClientProxy1_0::~CClientProxy1_0()
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// do nothing
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}
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bool
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void
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CClientProxy1_0::open()
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{
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// send request
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@ -55,8 +55,6 @@ CClientProxy1_0::open()
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// handle reply
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recvInfo(false);
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return true;
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}
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void
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~CClientProxy1_0();
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// IClient overrides
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virtual bool open();
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virtual void open();
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virtual void mainLoop();
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virtual void close();
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virtual void enter(SInt32 xAbs, SInt32 yAbs,
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@ -399,6 +399,7 @@ CMSWindowsPrimaryScreen::onPreOpen()
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// initialize hook library
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m_threadID = GetCurrentThreadId();
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if (m_init(m_threadID) == 0) {
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log((CLOG_ERR "cannot initialize hook library"));
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throw XScreenOpenFailure();
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}
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}
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@ -1,6 +1,7 @@
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#include "CPrimaryClient.h"
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#include "IPrimaryScreenFactory.h"
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#include "IServer.h"
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#include "XScreen.h"
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#include "XSynergy.h"
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#include "CPrimaryScreen.h"
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#include "CClipboard.h"
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@ -19,11 +20,15 @@ CPrimaryClient::CPrimaryClient(IPrimaryScreenFactory* screenFactory,
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m_seqNum(0)
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{
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assert(m_server != NULL);
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assert(screenFactory != NULL);
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// create screen
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log((CLOG_DEBUG1 "creating primary screen"));
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if (screenFactory != NULL) {
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m_screen = screenFactory->create(this, receiver);
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}
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if (m_screen == NULL) {
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throw XScreenOpenFailure();
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}
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}
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CPrimaryClient::~CPrimaryClient()
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@ -100,7 +105,7 @@ CPrimaryClient::onClipboardChanged(ClipboardID id, const CString& data)
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m_server->onClipboardChanged(id, m_seqNum, data);
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}
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bool
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void
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CPrimaryClient::open()
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{
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// all clipboards are clean
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@ -110,8 +115,6 @@ CPrimaryClient::open()
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// now open the screen
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m_screen->open();
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return true;
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}
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void
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@ -20,8 +20,9 @@ treated as if it was on a client.
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class CPrimaryClient : public IScreenReceiver, public IClient {
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public:
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/*!
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\c name is the name of the server. the caller retains ownership of
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\c factory.
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\c name is the name of the server. The caller retains ownership of
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\c factory. Throws XScreenOpenFailure or whatever the factory can
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throw if the screen cannot be created.
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*/
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CPrimaryClient(IPrimaryScreenFactory* factory, IServer*,
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IPrimaryScreenReceiver*, const CString& name);
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@ -75,7 +76,7 @@ public:
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virtual void onClipboardChanged(ClipboardID, const CString&);
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// IClient overrides
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virtual bool open();
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virtual void open();
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virtual void mainLoop();
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virtual void close();
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virtual void enter(SInt32 xAbs, SInt32 yAbs,
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delete m_streamFilterFactory;
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}
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bool
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void
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CServer::open()
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{
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// open the screen
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try {
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log((CLOG_INFO "opening screen"));
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openPrimaryScreen();
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return true;
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}
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catch (XScreenOpenFailure&) {
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// can't open screen yet. wait a few seconds to retry.
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catch (XScreen&) {
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// can't open screen
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log((CLOG_INFO "failed to open screen"));
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return false;
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throw;
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}
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catch (XUnknownClient& e) {
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// can't open screen yet. wait a few seconds to retry.
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// can't open screen
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log((CLOG_CRIT "unknown screen name `%s'", e.getName().c_str()));
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return false;
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throw;
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}
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}
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@ -1529,7 +1528,6 @@ void
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CServer::openPrimaryScreen()
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{
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assert(m_primaryClient == NULL);
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assert(m_screenFactory != NULL);
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// reset sequence number
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m_seqNum = 0;
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@ -39,9 +39,12 @@ public:
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//! Open server
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/*!
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Open the server and return true iff successful.
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Open the server. Throws XScreenUnavailable if the server's
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screen cannot be opened but might be available after some time.
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Otherwise throws some other exception if the server's screen or
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the server cannot be opened and retrying won't help.
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*/
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bool open();
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void open();
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//! Server main loop
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/*!
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//! Open client
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/*!
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Open the client and return true iff successful.
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Open the client. Throw if the client cannot be opened. If the
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screen cannot be opened but retrying later may succeed then throw
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XScreenUnavailable.
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*/
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virtual bool open() = 0;
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virtual void open() = 0;
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//! Client main loop
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/*!
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//! Open screen
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/*!
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Called to open and initialize the screen.
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Called to open and initialize the screen. Throw XScreenUnavailable
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if the screen cannot be opened but retrying later may succeed.
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Otherwise throw some other XScreenOpenFailure exception.
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*/
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virtual void open() = 0;
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@ -9,3 +9,31 @@ XScreenOpenFailure::getWhat() const throw()
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{
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return format("XScreenOpenFailure", "unable to open screen");
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}
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//
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// XScreenUnavailable
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//
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XScreenUnavailable::XScreenUnavailable(double timeUntilRetry) :
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m_timeUntilRetry(timeUntilRetry)
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{
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// do nothing
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}
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XScreenUnavailable::~XScreenUnavailable()
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{
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// do nothing
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}
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double
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XScreenUnavailable::getRetryTime() const
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{
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return m_timeUntilRetry;
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}
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CString
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XScreenUnavailable::getWhat() const throw()
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{
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return format("XScreenUnavailable", "unable to open screen");
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}
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virtual CString getWhat() const throw();
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};
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//! Screen unavailable exception
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/*!
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Thrown when a screen cannot be opened or initialized but retrying later
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may be successful.
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*/
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class XScreenUnavailable : public XScreenOpenFailure {
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public:
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/*!
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\c timeUntilRetry is the suggested time the caller should wait until
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trying to open the screen again.
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*/
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XScreenUnavailable(double timeUntilRetry);
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virtual ~XScreenUnavailable();
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//! @name manipulators
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//@{
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//! Get retry time
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/*!
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Returns the suggested time to wait until retrying to open the screen.
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*/
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double getRetryTime() const;
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//@}
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protected:
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virtual CString getWhat() const throw();
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private:
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double m_timeUntilRetry;
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};
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#endif
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Loading…
Reference in New Issue
Block a user