1*b1cdbd2cSJim Jagielski /**************************************************************
2*b1cdbd2cSJim Jagielski *
3*b1cdbd2cSJim Jagielski * Licensed to the Apache Software Foundation (ASF) under one
4*b1cdbd2cSJim Jagielski * or more contributor license agreements. See the NOTICE file
5*b1cdbd2cSJim Jagielski * distributed with this work for additional information
6*b1cdbd2cSJim Jagielski * regarding copyright ownership. The ASF licenses this file
7*b1cdbd2cSJim Jagielski * to you under the Apache License, Version 2.0 (the
8*b1cdbd2cSJim Jagielski * "License"); you may not use this file except in compliance
9*b1cdbd2cSJim Jagielski * with the License. You may obtain a copy of the License at
10*b1cdbd2cSJim Jagielski *
11*b1cdbd2cSJim Jagielski * http://www.apache.org/licenses/LICENSE-2.0
12*b1cdbd2cSJim Jagielski *
13*b1cdbd2cSJim Jagielski * Unless required by applicable law or agreed to in writing,
14*b1cdbd2cSJim Jagielski * software distributed under the License is distributed on an
15*b1cdbd2cSJim Jagielski * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b1cdbd2cSJim Jagielski * KIND, either express or implied. See the License for the
17*b1cdbd2cSJim Jagielski * specific language governing permissions and limitations
18*b1cdbd2cSJim Jagielski * under the License.
19*b1cdbd2cSJim Jagielski *
20*b1cdbd2cSJim Jagielski *************************************************************/
21*b1cdbd2cSJim Jagielski
22*b1cdbd2cSJim Jagielski
23*b1cdbd2cSJim Jagielski
24*b1cdbd2cSJim Jagielski // MARKER(update_precomp.py): autogen include statement, do not remove
25*b1cdbd2cSJim Jagielski #include "precompiled_vcl.hxx"
26*b1cdbd2cSJim Jagielski
27*b1cdbd2cSJim Jagielski #include <osl/module.h>
28*b1cdbd2cSJim Jagielski #include <unx/gtk/gtkdata.hxx>
29*b1cdbd2cSJim Jagielski #include <unx/gtk/gtkinst.hxx>
30*b1cdbd2cSJim Jagielski #include <unx/salobj.h>
31*b1cdbd2cSJim Jagielski #include <unx/gtk/gtkframe.hxx>
32*b1cdbd2cSJim Jagielski #include <unx/gtk/gtkobject.hxx>
33*b1cdbd2cSJim Jagielski #include <unx/gtk/atkbridge.hxx>
34*b1cdbd2cSJim Jagielski
35*b1cdbd2cSJim Jagielski #include <rtl/strbuf.hxx>
36*b1cdbd2cSJim Jagielski
37*b1cdbd2cSJim Jagielski #include <rtl/uri.hxx>
38*b1cdbd2cSJim Jagielski
39*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
40*b1cdbd2cSJim Jagielski #include <stdio.h>
41*b1cdbd2cSJim Jagielski #endif
42*b1cdbd2cSJim Jagielski
43*b1cdbd2cSJim Jagielski #include <dlfcn.h>
44*b1cdbd2cSJim Jagielski #include <fcntl.h>
45*b1cdbd2cSJim Jagielski #include <unistd.h>
46*b1cdbd2cSJim Jagielski
GtkHookedYieldMutex()47*b1cdbd2cSJim Jagielski GtkHookedYieldMutex::GtkHookedYieldMutex()
48*b1cdbd2cSJim Jagielski {
49*b1cdbd2cSJim Jagielski }
50*b1cdbd2cSJim Jagielski
51*b1cdbd2cSJim Jagielski /*
52*b1cdbd2cSJim Jagielski * These methods always occur in pairs
53*b1cdbd2cSJim Jagielski * A ThreadsEnter is followed by a ThreadsLeave
54*b1cdbd2cSJim Jagielski * We need to queue up the recursive lock count
55*b1cdbd2cSJim Jagielski * for each pair, so we can accurately restore
56*b1cdbd2cSJim Jagielski * it later.
57*b1cdbd2cSJim Jagielski */
ThreadsEnter()58*b1cdbd2cSJim Jagielski void GtkHookedYieldMutex::ThreadsEnter()
59*b1cdbd2cSJim Jagielski {
60*b1cdbd2cSJim Jagielski acquire();
61*b1cdbd2cSJim Jagielski if( !aYieldStack.empty() )
62*b1cdbd2cSJim Jagielski { /* Previously called ThreadsLeave() */
63*b1cdbd2cSJim Jagielski sal_uLong nCount = aYieldStack.front();
64*b1cdbd2cSJim Jagielski aYieldStack.pop_front();
65*b1cdbd2cSJim Jagielski while( nCount-- > 1 )
66*b1cdbd2cSJim Jagielski acquire();
67*b1cdbd2cSJim Jagielski }
68*b1cdbd2cSJim Jagielski }
69*b1cdbd2cSJim Jagielski
ThreadsLeave()70*b1cdbd2cSJim Jagielski void GtkHookedYieldMutex::ThreadsLeave()
71*b1cdbd2cSJim Jagielski {
72*b1cdbd2cSJim Jagielski aYieldStack.push_front( mnCount );
73*b1cdbd2cSJim Jagielski
74*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
75*b1cdbd2cSJim Jagielski if( mnThreadId &&
76*b1cdbd2cSJim Jagielski mnThreadId != vos::OThread::getCurrentIdentifier())
77*b1cdbd2cSJim Jagielski fprintf( stderr, "\n\n--- A different thread owns the mutex ...---\n\n\n");
78*b1cdbd2cSJim Jagielski #endif
79*b1cdbd2cSJim Jagielski
80*b1cdbd2cSJim Jagielski while( mnCount > 1 )
81*b1cdbd2cSJim Jagielski release();
82*b1cdbd2cSJim Jagielski release();
83*b1cdbd2cSJim Jagielski }
84*b1cdbd2cSJim Jagielski
acquire()85*b1cdbd2cSJim Jagielski void GtkHookedYieldMutex::acquire()
86*b1cdbd2cSJim Jagielski {
87*b1cdbd2cSJim Jagielski SalYieldMutex::acquire();
88*b1cdbd2cSJim Jagielski }
89*b1cdbd2cSJim Jagielski
release()90*b1cdbd2cSJim Jagielski void GtkHookedYieldMutex::release()
91*b1cdbd2cSJim Jagielski {
92*b1cdbd2cSJim Jagielski SalYieldMutex::release();
93*b1cdbd2cSJim Jagielski }
94*b1cdbd2cSJim Jagielski
95*b1cdbd2cSJim Jagielski extern "C"
96*b1cdbd2cSJim Jagielski {
97*b1cdbd2cSJim Jagielski #define GET_YIELD_MUTEX() static_cast<GtkHookedYieldMutex*>(GetSalData()->m_pInstance->GetYieldMutex())
GdkThreadsEnter(void)98*b1cdbd2cSJim Jagielski static void GdkThreadsEnter( void )
99*b1cdbd2cSJim Jagielski {
100*b1cdbd2cSJim Jagielski GtkHookedYieldMutex *pYieldMutex = GET_YIELD_MUTEX();
101*b1cdbd2cSJim Jagielski pYieldMutex->ThreadsEnter();
102*b1cdbd2cSJim Jagielski }
GdkThreadsLeave(void)103*b1cdbd2cSJim Jagielski static void GdkThreadsLeave( void )
104*b1cdbd2cSJim Jagielski {
105*b1cdbd2cSJim Jagielski GtkHookedYieldMutex *pYieldMutex = GET_YIELD_MUTEX();
106*b1cdbd2cSJim Jagielski pYieldMutex->ThreadsLeave();
107*b1cdbd2cSJim Jagielski }
hookLocks(oslModule pModule)108*b1cdbd2cSJim Jagielski static bool hookLocks( oslModule pModule )
109*b1cdbd2cSJim Jagielski {
110*b1cdbd2cSJim Jagielski typedef void (*GdkLockFn) (GCallback enter_fn, GCallback leave_fn);
111*b1cdbd2cSJim Jagielski
112*b1cdbd2cSJim Jagielski GdkLockFn gdk_threads_set_lock_functions =
113*b1cdbd2cSJim Jagielski (GdkLockFn) osl_getAsciiFunctionSymbol( pModule, "gdk_threads_set_lock_functions" );
114*b1cdbd2cSJim Jagielski if ( !gdk_threads_set_lock_functions )
115*b1cdbd2cSJim Jagielski {
116*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
117*b1cdbd2cSJim Jagielski fprintf( stderr, "Failed to hook gdk threads locks\n" );
118*b1cdbd2cSJim Jagielski #endif
119*b1cdbd2cSJim Jagielski return false;
120*b1cdbd2cSJim Jagielski }
121*b1cdbd2cSJim Jagielski
122*b1cdbd2cSJim Jagielski gdk_threads_set_lock_functions (GdkThreadsEnter, GdkThreadsLeave);
123*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
124*b1cdbd2cSJim Jagielski fprintf( stderr, "Hooked gdk threads locks\n" );
125*b1cdbd2cSJim Jagielski #endif
126*b1cdbd2cSJim Jagielski return true;
127*b1cdbd2cSJim Jagielski }
128*b1cdbd2cSJim Jagielski
create_SalInstance(oslModule pModule)129*b1cdbd2cSJim Jagielski VCLPLUG_GTK_PUBLIC SalInstance* create_SalInstance( oslModule pModule )
130*b1cdbd2cSJim Jagielski {
131*b1cdbd2cSJim Jagielski /* #i92121# workaround deadlocks in the X11 implementation
132*b1cdbd2cSJim Jagielski */
133*b1cdbd2cSJim Jagielski static const char* pNoXInitThreads = getenv( "SAL_NO_XINITTHREADS" );
134*b1cdbd2cSJim Jagielski /* #i90094#
135*b1cdbd2cSJim Jagielski from now on we know that an X connection will be
136*b1cdbd2cSJim Jagielski established, so protect X against itself
137*b1cdbd2cSJim Jagielski */
138*b1cdbd2cSJim Jagielski if( ! ( pNoXInitThreads && *pNoXInitThreads ) )
139*b1cdbd2cSJim Jagielski XInitThreads();
140*b1cdbd2cSJim Jagielski
141*b1cdbd2cSJim Jagielski const gchar* pVersion = gtk_check_version( 2, 2, 0 );
142*b1cdbd2cSJim Jagielski if( pVersion )
143*b1cdbd2cSJim Jagielski {
144*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
145*b1cdbd2cSJim Jagielski fprintf( stderr, "gtk version conflict: %s\n", pVersion );
146*b1cdbd2cSJim Jagielski #endif
147*b1cdbd2cSJim Jagielski return NULL;
148*b1cdbd2cSJim Jagielski }
149*b1cdbd2cSJim Jagielski
150*b1cdbd2cSJim Jagielski GtkYieldMutex *pYieldMutex;
151*b1cdbd2cSJim Jagielski
152*b1cdbd2cSJim Jagielski // init gdk thread protection
153*b1cdbd2cSJim Jagielski if ( !g_thread_supported() )
154*b1cdbd2cSJim Jagielski g_thread_init( NULL );
155*b1cdbd2cSJim Jagielski
156*b1cdbd2cSJim Jagielski if ( hookLocks( pModule ) )
157*b1cdbd2cSJim Jagielski pYieldMutex = new GtkHookedYieldMutex();
158*b1cdbd2cSJim Jagielski else
159*b1cdbd2cSJim Jagielski pYieldMutex = new GtkYieldMutex();
160*b1cdbd2cSJim Jagielski
161*b1cdbd2cSJim Jagielski gdk_threads_init();
162*b1cdbd2cSJim Jagielski
163*b1cdbd2cSJim Jagielski GtkInstance* pInstance = new GtkInstance( pYieldMutex );
164*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
165*b1cdbd2cSJim Jagielski fprintf( stderr, "creating GtkSalInstance 0x%p\n", pInstance );
166*b1cdbd2cSJim Jagielski #endif
167*b1cdbd2cSJim Jagielski
168*b1cdbd2cSJim Jagielski // initialize SalData
169*b1cdbd2cSJim Jagielski GtkData *pSalData = new GtkData();
170*b1cdbd2cSJim Jagielski SetSalData( pSalData );
171*b1cdbd2cSJim Jagielski pSalData->m_pInstance = pInstance;
172*b1cdbd2cSJim Jagielski pSalData->Init();
173*b1cdbd2cSJim Jagielski pSalData->initNWF();
174*b1cdbd2cSJim Jagielski
175*b1cdbd2cSJim Jagielski InitAtkBridge();
176*b1cdbd2cSJim Jagielski
177*b1cdbd2cSJim Jagielski return pInstance;
178*b1cdbd2cSJim Jagielski }
179*b1cdbd2cSJim Jagielski }
180*b1cdbd2cSJim Jagielski
~GtkInstance()181*b1cdbd2cSJim Jagielski GtkInstance::~GtkInstance()
182*b1cdbd2cSJim Jagielski {
183*b1cdbd2cSJim Jagielski DeInitAtkBridge();
184*b1cdbd2cSJim Jagielski }
185*b1cdbd2cSJim Jagielski
CreateFrame(SalFrame * pParent,sal_uLong nStyle)186*b1cdbd2cSJim Jagielski SalFrame* GtkInstance::CreateFrame( SalFrame* pParent, sal_uLong nStyle )
187*b1cdbd2cSJim Jagielski {
188*b1cdbd2cSJim Jagielski return new GtkSalFrame( pParent, nStyle );
189*b1cdbd2cSJim Jagielski }
190*b1cdbd2cSJim Jagielski
CreateChildFrame(SystemParentData * pParentData,sal_uLong)191*b1cdbd2cSJim Jagielski SalFrame* GtkInstance::CreateChildFrame( SystemParentData* pParentData, sal_uLong )
192*b1cdbd2cSJim Jagielski {
193*b1cdbd2cSJim Jagielski SalFrame* pFrame = new GtkSalFrame( pParentData );
194*b1cdbd2cSJim Jagielski
195*b1cdbd2cSJim Jagielski return pFrame;
196*b1cdbd2cSJim Jagielski }
197*b1cdbd2cSJim Jagielski
CreateObject(SalFrame * pParent,SystemWindowData * pWindowData,sal_Bool bShow)198*b1cdbd2cSJim Jagielski SalObject* GtkInstance::CreateObject( SalFrame* pParent, SystemWindowData* pWindowData, sal_Bool bShow )
199*b1cdbd2cSJim Jagielski {
200*b1cdbd2cSJim Jagielski // there is no method to set a visual for a GtkWidget
201*b1cdbd2cSJim Jagielski // so we need the X11SalObject in that case
202*b1cdbd2cSJim Jagielski if( pWindowData )
203*b1cdbd2cSJim Jagielski return X11SalObject::CreateObject( pParent, pWindowData, bShow );
204*b1cdbd2cSJim Jagielski
205*b1cdbd2cSJim Jagielski return new GtkSalObject( static_cast<GtkSalFrame*>(pParent), bShow );
206*b1cdbd2cSJim Jagielski }
207*b1cdbd2cSJim Jagielski
208*b1cdbd2cSJim Jagielski extern "C"
209*b1cdbd2cSJim Jagielski {
210*b1cdbd2cSJim Jagielski typedef void*(* getDefaultFnc)();
211*b1cdbd2cSJim Jagielski typedef void(* addItemFnc)(void *, const char *);
212*b1cdbd2cSJim Jagielski }
213*b1cdbd2cSJim Jagielski
AddToRecentDocumentList(const rtl::OUString & rFileUrl,const rtl::OUString & rMimeType)214*b1cdbd2cSJim Jagielski void GtkInstance::AddToRecentDocumentList(const rtl::OUString& rFileUrl, const rtl::OUString& rMimeType)
215*b1cdbd2cSJim Jagielski {
216*b1cdbd2cSJim Jagielski rtl::OString sGtkURL;
217*b1cdbd2cSJim Jagielski rtl_TextEncoding aSystemEnc = osl_getThreadTextEncoding();
218*b1cdbd2cSJim Jagielski if ((aSystemEnc == RTL_TEXTENCODING_UTF8) || (rFileUrl.compareToAscii( "file://", 7 ) != 0))
219*b1cdbd2cSJim Jagielski sGtkURL = rtl::OUStringToOString(rFileUrl, RTL_TEXTENCODING_UTF8);
220*b1cdbd2cSJim Jagielski else
221*b1cdbd2cSJim Jagielski {
222*b1cdbd2cSJim Jagielski //Non-utf8 locales are a bad idea if trying to work with non-ascii filenames
223*b1cdbd2cSJim Jagielski //Decode %XX components
224*b1cdbd2cSJim Jagielski rtl::OUString sDecodedUri = Uri::decode(rFileUrl.copy(7), rtl_UriDecodeToIuri, RTL_TEXTENCODING_UTF8);
225*b1cdbd2cSJim Jagielski //Convert back to system locale encoding
226*b1cdbd2cSJim Jagielski rtl::OString sSystemUrl = rtl::OUStringToOString(sDecodedUri, aSystemEnc);
227*b1cdbd2cSJim Jagielski //Encode to an escaped ASCII-encoded URI
228*b1cdbd2cSJim Jagielski gchar *g_uri = g_filename_to_uri(sSystemUrl.getStr(), NULL, NULL);
229*b1cdbd2cSJim Jagielski sGtkURL = rtl::OString(g_uri);
230*b1cdbd2cSJim Jagielski g_free(g_uri);
231*b1cdbd2cSJim Jagielski }
232*b1cdbd2cSJim Jagielski #if GTK_CHECK_VERSION(2,10,0)
233*b1cdbd2cSJim Jagielski GtkRecentManager *manager = gtk_recent_manager_get_default ();
234*b1cdbd2cSJim Jagielski gtk_recent_manager_add_item( manager, sGtkURL.getStr());
235*b1cdbd2cSJim Jagielski (void)rMimeType;
236*b1cdbd2cSJim Jagielski #else
237*b1cdbd2cSJim Jagielski static getDefaultFnc sym_gtk_recent_manager_get_default =
238*b1cdbd2cSJim Jagielski (getDefaultFnc)osl_getAsciiFunctionSymbol( GetSalData()->m_pPlugin, "gtk_recent_manager_get_default" );
239*b1cdbd2cSJim Jagielski
240*b1cdbd2cSJim Jagielski static addItemFnc sym_gtk_recent_manager_add_item =
241*b1cdbd2cSJim Jagielski (addItemFnc)osl_getAsciiFunctionSymbol( GetSalData()->m_pPlugin, "gtk_recent_manager_add_item");
242*b1cdbd2cSJim Jagielski if (sym_gtk_recent_manager_get_default && sym_gtk_recent_manager_add_item)
243*b1cdbd2cSJim Jagielski sym_gtk_recent_manager_add_item(sym_gtk_recent_manager_get_default(), sGtkURL);
244*b1cdbd2cSJim Jagielski else
245*b1cdbd2cSJim Jagielski X11SalInstance::AddToRecentDocumentList(rFileUrl, rMimeType);
246*b1cdbd2cSJim Jagielski #endif
247*b1cdbd2cSJim Jagielski }
248*b1cdbd2cSJim Jagielski
GtkYieldMutex()249*b1cdbd2cSJim Jagielski GtkYieldMutex::GtkYieldMutex()
250*b1cdbd2cSJim Jagielski {
251*b1cdbd2cSJim Jagielski }
252*b1cdbd2cSJim Jagielski
acquire()253*b1cdbd2cSJim Jagielski void GtkYieldMutex::acquire()
254*b1cdbd2cSJim Jagielski {
255*b1cdbd2cSJim Jagielski vos::OThread::TThreadIdentifier aCurrentThread = vos::OThread::getCurrentIdentifier();
256*b1cdbd2cSJim Jagielski // protect member manipulation
257*b1cdbd2cSJim Jagielski OMutex::acquire();
258*b1cdbd2cSJim Jagielski if( mnCount > 0 && mnThreadId == aCurrentThread )
259*b1cdbd2cSJim Jagielski {
260*b1cdbd2cSJim Jagielski mnCount++;
261*b1cdbd2cSJim Jagielski OMutex::release();
262*b1cdbd2cSJim Jagielski return;
263*b1cdbd2cSJim Jagielski }
264*b1cdbd2cSJim Jagielski OMutex::release();
265*b1cdbd2cSJim Jagielski
266*b1cdbd2cSJim Jagielski // obtain gdk mutex
267*b1cdbd2cSJim Jagielski gdk_threads_enter();
268*b1cdbd2cSJim Jagielski
269*b1cdbd2cSJim Jagielski // obtained gdk mutex, now lock count is one by definition
270*b1cdbd2cSJim Jagielski OMutex::acquire();
271*b1cdbd2cSJim Jagielski mnCount = 1;
272*b1cdbd2cSJim Jagielski mnThreadId = aCurrentThread;
273*b1cdbd2cSJim Jagielski OMutex::release();
274*b1cdbd2cSJim Jagielski }
275*b1cdbd2cSJim Jagielski
release()276*b1cdbd2cSJim Jagielski void GtkYieldMutex::release()
277*b1cdbd2cSJim Jagielski {
278*b1cdbd2cSJim Jagielski vos::OThread::TThreadIdentifier aCurrentThread = vos::OThread::getCurrentIdentifier();
279*b1cdbd2cSJim Jagielski // protect member manipulation
280*b1cdbd2cSJim Jagielski OMutex::acquire();
281*b1cdbd2cSJim Jagielski // strange things happen, do nothing if we don't own the mutex
282*b1cdbd2cSJim Jagielski if( mnThreadId == aCurrentThread )
283*b1cdbd2cSJim Jagielski {
284*b1cdbd2cSJim Jagielski mnCount--;
285*b1cdbd2cSJim Jagielski if( mnCount == 0 )
286*b1cdbd2cSJim Jagielski {
287*b1cdbd2cSJim Jagielski gdk_threads_leave();
288*b1cdbd2cSJim Jagielski mnThreadId = 0;
289*b1cdbd2cSJim Jagielski }
290*b1cdbd2cSJim Jagielski }
291*b1cdbd2cSJim Jagielski OMutex::release();
292*b1cdbd2cSJim Jagielski }
293*b1cdbd2cSJim Jagielski
tryToAcquire()294*b1cdbd2cSJim Jagielski sal_Bool GtkYieldMutex::tryToAcquire()
295*b1cdbd2cSJim Jagielski {
296*b1cdbd2cSJim Jagielski vos::OThread::TThreadIdentifier aCurrentThread = vos::OThread::getCurrentIdentifier();
297*b1cdbd2cSJim Jagielski // protect member manipulation
298*b1cdbd2cSJim Jagielski OMutex::acquire();
299*b1cdbd2cSJim Jagielski if( mnCount > 0 )
300*b1cdbd2cSJim Jagielski {
301*b1cdbd2cSJim Jagielski if( mnThreadId == aCurrentThread )
302*b1cdbd2cSJim Jagielski {
303*b1cdbd2cSJim Jagielski mnCount++;
304*b1cdbd2cSJim Jagielski OMutex::release();
305*b1cdbd2cSJim Jagielski return sal_True;
306*b1cdbd2cSJim Jagielski }
307*b1cdbd2cSJim Jagielski else
308*b1cdbd2cSJim Jagielski {
309*b1cdbd2cSJim Jagielski OMutex::release();
310*b1cdbd2cSJim Jagielski return sal_False;
311*b1cdbd2cSJim Jagielski }
312*b1cdbd2cSJim Jagielski }
313*b1cdbd2cSJim Jagielski OMutex::release();
314*b1cdbd2cSJim Jagielski
315*b1cdbd2cSJim Jagielski // HACK: gdk_threads_mutex is private, we shouldn't use it.
316*b1cdbd2cSJim Jagielski // how to we do a try_lock without having a gdk_threads_try_enter ?
317*b1cdbd2cSJim Jagielski if( ! g_mutex_trylock( gdk_threads_mutex ) )
318*b1cdbd2cSJim Jagielski return sal_False;
319*b1cdbd2cSJim Jagielski
320*b1cdbd2cSJim Jagielski // obtained gdk mutex, now lock count is one by definition
321*b1cdbd2cSJim Jagielski OMutex::acquire();
322*b1cdbd2cSJim Jagielski mnCount = 1;
323*b1cdbd2cSJim Jagielski mnThreadId = aCurrentThread;
324*b1cdbd2cSJim Jagielski OMutex::release();
325*b1cdbd2cSJim Jagielski
326*b1cdbd2cSJim Jagielski return sal_True;
327*b1cdbd2cSJim Jagielski }
328*b1cdbd2cSJim Jagielski
Grab()329*b1cdbd2cSJim Jagielski int GtkYieldMutex::Grab()
330*b1cdbd2cSJim Jagielski {
331*b1cdbd2cSJim Jagielski // this MUST only be called by gdk/gtk callbacks:
332*b1cdbd2cSJim Jagielski // they are entered with gdk mutex locked; the mutex
333*b1cdbd2cSJim Jagielski // was unlocked by GtkYieldMutex befor yielding which
334*b1cdbd2cSJim Jagielski // is now locked again by gtk implicitly
335*b1cdbd2cSJim Jagielski
336*b1cdbd2cSJim Jagielski // obtained gdk mutex, now lock count is one by definition
337*b1cdbd2cSJim Jagielski OMutex::acquire();
338*b1cdbd2cSJim Jagielski int nRet = mnCount;
339*b1cdbd2cSJim Jagielski if( mnCount == 0 ) // recursive else
340*b1cdbd2cSJim Jagielski mnThreadId = vos::OThread::getCurrentIdentifier();
341*b1cdbd2cSJim Jagielski #if OSL_DEBUG_LEVEL > 1
342*b1cdbd2cSJim Jagielski else if( mnThreadId != vos::OThread::getCurrentIdentifier() )
343*b1cdbd2cSJim Jagielski {
344*b1cdbd2cSJim Jagielski fprintf( stderr, "Yield mutex grabbed in different thread !\n" );
345*b1cdbd2cSJim Jagielski abort();
346*b1cdbd2cSJim Jagielski }
347*b1cdbd2cSJim Jagielski #endif
348*b1cdbd2cSJim Jagielski mnCount = 1;
349*b1cdbd2cSJim Jagielski OMutex::release();
350*b1cdbd2cSJim Jagielski return nRet;
351*b1cdbd2cSJim Jagielski }
352*b1cdbd2cSJim Jagielski
Ungrab(int nGrabs)353*b1cdbd2cSJim Jagielski void GtkYieldMutex::Ungrab( int nGrabs )
354*b1cdbd2cSJim Jagielski {
355*b1cdbd2cSJim Jagielski // this MUST only be called when leaving the callback
356*b1cdbd2cSJim Jagielski // that locked the mutex with Grab()
357*b1cdbd2cSJim Jagielski OMutex::acquire();
358*b1cdbd2cSJim Jagielski mnCount = nGrabs;
359*b1cdbd2cSJim Jagielski if( mnCount == 0 )
360*b1cdbd2cSJim Jagielski mnThreadId = 0;
361*b1cdbd2cSJim Jagielski OMutex::release();
362*b1cdbd2cSJim Jagielski }
363