/* $Xorg: await.c,v 1.3 2000/08/17 19:54:24 cpqbld Exp $ */ /**** module await.c ****/ /****************************************************************************** Copyright 1993, 1994, 1998 The Open Group All Rights Reserved. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. NOTICE This software is being provided by AGE Logic, Inc. under the following license. By obtaining, using and/or copying this software, you agree that you have read, understood, and will comply with these terms and conditions: Permission to use, copy, modify, distribute and sell this software and its documentation for any purpose and without fee or royalty and to grant others any or all rights granted herein is hereby granted, provided that you agree to comply with the following copyright notice and statements, including the disclaimer, and that the same appears on all copies and derivative works of the software and documentation you make. "Copyright 1993, 1994 by AGE Logic, Inc." THIS SOFTWARE IS PROVIDED "AS IS". AGE LOGIC MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. By way of example, but not limitation, AGE LOGIC MAKE NO REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE SOFTWARE DOES NOT INFRINGE THIRD-PARTY PROPRIETARY RIGHTS. AGE LOGIC SHALL BEAR NO LIABILITY FOR ANY USE OF THIS SOFTWARE. IN NO EVENT SHALL EITHER PARTY BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOSS OF PROFITS, REVENUE, DATA OR USE, INCURRED BY EITHER PARTY OR ANY THIRD PARTY, WHETHER IN AN ACTION IN CONTRACT OR TORT OR BASED ON A WARRANTY, EVEN IF AGE LOGIC LICENSEES HEREUNDER HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. The name of AGE Logic, Inc. may not be used in advertising or publicity pertaining to this software without specific, written prior permission from AGE Logic. Title to this software shall at all times remain with AGE Logic, Inc. ***************************************************************************** await.c -- await flo element test Syd Logan -- AGE Logic, Inc. *****************************************************************************/ /* $XFree86: xc/programs/xieperf/await.c,v 3.4 2001/01/17 23:45:36 dawes Exp $ */ #ifdef WIN32 #include #endif #include "xieperf.h" #include #include #include static XieLut XIELut; static XiePhotoElement *flograph; static XiePhotoflo flo; static unsigned char *lut; static int lutSize; static int AwaitHandlerSeen; static XParms xplocal; /* we can't pass args to signal handler */ int InitAwait(XParms xp, Parms p, int reps) { XieDataClass class; XieOrientation band_order; XieLTriplet length, levels; Bool merge; XieLTriplet start; int i; lut = ( unsigned char * ) NULL; flograph = ( XiePhotoElement * ) NULL; flo = ( XiePhotoflo ) NULL; XIELut = ( XieLut ) NULL; xplocal = xp; /* so the signal handler can access it */ lutSize = ( ( AwaitParms * ) ( p->ts ) )->lutSize; lut = (unsigned char *)malloc( lutSize ); if ( lut == ( unsigned char * ) NULL ) { fprintf( stderr, "malloc failed\n" ); reps = 0; } else { for ( i = 0; i < lutSize; i++ ) { if ( i % 5 == 0 ) { lut[ i ] = ( lutSize - 1 ) - i; } else { lut[ i ] = i; } } if ( !(XIELut = XieCreateLUT( xp->d ) ) ) { fprintf( stderr, "XieCreateLUT failed\n" ); reps = 0; } } if ( reps ) { /* set up a flo to read the lut from client */ flograph = XieAllocatePhotofloGraph(2); if ( flograph == ( XiePhotoElement * ) NULL ) { fprintf(stderr,"XieAllocatePhotofloGraph failed\n"); return( 0 ); } class = xieValSingleBand; band_order = xieValLSFirst; length[ 0 ] = lutSize; length[ 1 ] = 0; length[ 2 ] = 0; levels[ 0 ] = ( ( AwaitParms * ) ( p->ts ) )->lutLevels; levels[ 1 ] = 0; levels[ 2 ] = 0; XieFloImportClientLUT(&flograph[0], class, band_order, length, levels ); merge = False; start[ 0 ] = 0; start[ 1 ] = 0; start[ 2 ] = 0; XieFloExportLUT(&flograph[1], 1, /* source phototag number */ XIELut, merge, start ); flo = XieCreatePhotoflo( xp->d, flograph, 2 ); } if ( !reps ) { FreeAwaitStuff( xp, p ); } return( reps ); } void AbortFlo(XParms xp) { XieExtensionInfo *xieInfo; xp->d = Open_Display( xp->displayName ); if ( XieInitialize( xp->d, &xieInfo ) ) { /* abort the flo */ XieAbort( xp->d, 0, flo ); } XCloseDisplay( xp->d ); } #ifdef SIGALRM SIGNAL_T AwaitHandler(int sig) { int pid; /* hmmmm... bad news. some possibilities include ( first time in this function e.g. AwaitHandlerSeen is 0 on entry ): 1 --> Signals are messed up and SIGALRM was triggered by mistake, although this is an unlikely possibility. 2 --> It took more time than we expected to do the tasks in DoAwait() so increase the alarm() value or start pleading with your boss for a faster system or network 3 --> The flo didn't finish for some reason - maybe the child had problems executing 4 --> XieAwait is broken: possibly it did not notice that the flo had finished and thus XieQueryPhotoflo never was executed, or it *did* notice that the flo had finished but *still* did not allow XieQueryPhotoflo to get out. */ /* We have a big problem now: we could try waiting some more ( nah ), or we could just take the easy way out and exit, or we could spawn a child which makes a new connection to the server and aborts the photoflo. Let's try spawning and see if we can abort the flo. Also, we will restart this alarm and if we timeout again we have no choice but to exit as things seem severly hosed. First, however, let's check the value of AwaitHandlerSeen. If it happens to be 2 then we have already have timed out a second time and it is time to exit. */ if ( ++AwaitHandlerSeen == 2 ) { exit( 1 ); } if ( ( pid = fork() ) == -1 ) { exit( 1 ); } else if ( pid == 0 ) /* child */ { AbortFlo(xplocal); exit( 0 ); } else /* parent */ { /* if this alarm triggers, the XieAbort failed, or it worked and we have a situation similar to one of those listed above */ alarm( GetTimeout() ); } } #endif #ifdef WIN32 struct _data {XParms xp; Parms p;}; void ChildProc(struct _data *data) { XieExtensionInfo *xieInfo; struct _XParms _xp; XParms xp = &_xp; Parms p = data->p; *xp = *data->xp; xp->d = Open_Display( xp->displayName ); if ( XieInitialize( xp->d, &xieInfo ) ) { PumpTheClientData( xp, p, flo, 0, 1, (char *)lut, lutSize, 0 ); } XCloseDisplay(xp->d); } #endif void DoAwait(XParms xp, Parms p, int reps) { int i, pid; int status; XieExtensionInfo *xieInfo; XiePhotofloState state; XiePhototag *expected, *avail; unsigned int nexpected, navail; #ifdef WIN32 struct _data data; HANDLE child; DWORD threadId; #endif /* this is fun! */ for (i = 0; i != reps; i++) { AwaitHandlerSeen = 0; XieExecutePhotoflo( xp->d, flo, 0 ); XSync( xp->d, 0 ); XieAwait( xp->d, 0, flo ); #ifdef WIN32 data.xp = xp; data.p = p; child = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)ChildProc, (LPVOID)&data, 0, &threadId); if (WaitForSingleObject(child, GetTimeout() * 1000) == WAIT_TIMEOUT) { HANDLE child2; fprintf(stderr, "transfer timed out\n"); child2 = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE)AbortFlo, (LPVOID)xplocal, 0, &threadId); if (WaitForSingleObject(child2, GetTimeout() * 1000) == WAIT_TIMEOUT) { fprintf(stderr, "abort timed out\n"); TerminateThread(child2, 0); } TerminateThread(child, 0); } #else if ( ( pid = fork() ) == -1 ) /* gasp */ { fprintf( stderr, "couldn't fork\n" ); exit( 1 ); } else if ( pid == 0 ) /* child */ { /* connect to the server */ xp->d = Open_Display( xp->displayName ); if ( XieInitialize( xp->d, &xieInfo ) ) { PumpTheClientData( xp, p, flo, 0, 1, (char *)lut, lutSize, 0 ); } XCloseDisplay(xp->d); exit( 0 ); } else /* parent */ { #ifdef SIGALRM signal( SIGALRM, AwaitHandler ); alarm( GetTimeout() ); #endif #endif /* WIN32 */ /* if we query the photoflo and it is active, then XieAwait didn't really do what we wanted it to */ if ( !XieQueryPhotoflo( xp->d, 0, flo, &state, &expected, &nexpected, &avail, &navail ) ) { fprintf( stderr, "XieQueryPhotoflo failed\n" ); break; } if ( expected ) XFree( expected ); if ( avail ) XFree( avail ); if ( state != xieValInactive ) { fprintf( stderr, "Flo state was not inactive\n" ); break; } #ifndef WIN32 wait( &status ); if ( status & 0xff ) { fprintf( stderr, "Child process abnormal termination: %x\n", status & 0xff ); break; } } /* whew! somehow we got through this mess unscathed */ #ifdef SIGALRM alarm( 0 ); #endif #endif } } void EndAwait(XParms xp, Parms p) { FreeAwaitStuff( xp, p ); } void FreeAwaitStuff(XParms xp, Parms p) { if ( lut ) { free( lut ); lut = ( unsigned char * ) NULL; } if ( flograph ) { XieFreePhotofloGraph(flograph,2); flograph = ( XiePhotoElement * ) NULL; } if ( flo ) { XieDestroyPhotoflo( xp->d, flo ); flo = ( XiePhotoflo ) NULL; } if ( XIELut ) { XieDestroyLUT( xp->d, XIELut ); XIELut = ( XieLut ) NULL; } }