/* $XConsortium: session.c,v 1.6 94/04/17 20:33:58 rws Exp $ */ /**** session.c ****/ /**************************************************************************** Copyright (c) 1993, 1994 X Consortium Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 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 X CONSORTIUM 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 X Consortium 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 X Consortium. 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. ***************************************************************************** session.c: Initialization code for the XIE server. Dean Verheiden -- AGE Logic, Inc March, 1993 *****************************************************************************/ #define _XIEC_SESSION #define NEED_REPLIES #include "X.h" /* Needed for just about anything */ #include "Xproto.h" /* defines protocol-related stuff */ #include "misc.h" /* includes os.h, which type FatalError */ #include "dixstruct.h" /* this picks up ClientPtr definition */ #include "extnsionst.h" /* defines things like ExtensionEntry */ #include /* needed if we do any printf's */ #include "XIE.h" #include "XIEproto.h" /* Xie protocol specification */ #include /* core X interface routine definitions */ #include #include /* server internal macros */ #include #include /* extern def for technique_init */ /* function declarations */ static int XieDispatch(), /* dispatcher for XIE opcodes */ SXieDispatch(), /* dispatcher for swapped code */ DeleteXieClient(); /* Clean up routine */ static void XieReset(); /* reset the XIE code, eg, on reboot */ static int DdxInit(); #define REPORT_MEMORY_LEAKS #ifdef REPORT_MEMORY_LEAKS extern int ALLOCS; extern int STRIPS; extern int BYTES; #endif ExtensionEntry *extEntry; RESTYPE RC_XIE; /* XIE Resource Class */ #if XIE_FULL RESTYPE RT_COLORLIST; /* ColorList resource type */ #endif RESTYPE RT_LUT; /* Lookup table resource type */ RESTYPE RT_PHOTOFLO; /* Photoflo resource type */ RESTYPE RT_PHOTOMAP; /* Photomap resource type */ RESTYPE RT_PHOTOSPACE; /* Photospace resource type */ #if XIE_FULL RESTYPE RT_ROI; /* Region Of Interest type */ #endif RESTYPE RT_XIE_CLIENT; /* XIE Type for Shutdown Notice */ struct _client_table { XID Shutdown_id; int (**proc_table)(); /* Table of version specific procedures */ int (**sproc_table)(); CARD16 minorVersion; CARD16 pad; } client_table[MAXCLIENTS]; void XieInit() { ExtensionEntry *AddExtension(); /* Initialize XIE Resources */ RC_XIE = CreateNewResourceClass(); #if XIE_FULL RT_COLORLIST = RC_XIE | CreateNewResourceType(DeleteColorList); #endif RT_LUT = RC_XIE | CreateNewResourceType(DeleteLUT); RT_PHOTOFLO = RC_XIE | CreateNewResourceType(DeletePhotoflo); RT_PHOTOMAP = RC_XIE | CreateNewResourceType(DeletePhotomap); RT_PHOTOSPACE = RC_XIE | CreateNewResourceType(DeletePhotospace); #if XIE_FULL RT_ROI = RC_XIE | CreateNewResourceType(DeleteROI); #endif RT_XIE_CLIENT = RC_XIE | CreateNewResourceType(DeleteXieClient); extEntry = AddExtension(xieExtName, /* extension name */ xieNumEvents, /* number of events */ xieNumErrors, /* number of errors */ XieDispatch, /* Xie's dispatcher */ SXieDispatch, /* Swapped dispatch */ XieReset, /* Reset XIE stuff */ StandardMinorOpcode /* choose opcode dynamically */ ); if (extEntry == NULL) FatalError(" could not add Xie as an extension\n"); /* Initialize client table */ bzero((char *)client_table, sizeof(client_table)); if (!technique_init() || DdxInit() != Success) FatalError(" could not add Xie as an extension\n"); } /**********************************************************************/ /* Register client with core X under a FakeClientID */ static int RegisterXieClient(client, minor) ClientPtr client; CARD16 minor; { client_table[client->index].Shutdown_id = FakeClientID(client->index); client_table[client->index].minorVersion = minor; init_proc_tables(minor, &(client_table[client->index].proc_table), &(client_table[client->index].sproc_table)); /* Register the client with Core X for shutdown */ return (AddResource(client_table[client->index].Shutdown_id, RT_XIE_CLIENT, &(client_table[client->index]))); } /**********************************************************************/ static int XieDispatch (client) register ClientPtr client; { REQUEST(xieReq); /* make "stuff" point to client's request buffer */ /* QueryImageExtension establishes a communication version */ if (stuff->opcode == X_ieQueryImageExtension) return (ProcQueryImageExtension(client)); /* First make sure that a communication version has been established */ if (client_table[client->index].Shutdown_id == 0 && /* Pick a favorite */ !RegisterXieClient(client, xieMinorVersion)) /* minor version */ return ( BadAlloc ); if (stuff->opcode > 0 && stuff->opcode <= xieNumProtoReq) /* Index into version specific routines */ return (CallProc(client)); else return ( BadRequest); } /**********************************************************************/ static int SXieDispatch (client) register ClientPtr client; { REQUEST(xieReq); /* make "stuff" point to client's request buffer */ /* QueryImageExtension establishes a communication version */ if (stuff->opcode == X_ieQueryImageExtension) return (SProcQueryImageExtension(client)); /* First make sure that a communication version has been established */ if (client_table[client->index].Shutdown_id == 0 && /* Pick a favorite */ !RegisterXieClient(client, xieMinorVersion)) /* minor version */ return ( BadAlloc ); if (stuff->opcode > 0 && stuff->opcode <= xieNumProtoReq) /* Index into version specific routines */ return (CallSProc(client)); else return ( BadRequest); } /**********************************************************************/ ProcQueryImageExtension(client) register ClientPtr client; { xieQueryImageExtensionReply reply; XID FakeClientID(); REQUEST(xieQueryImageExtensionReq); REQUEST_SIZE_MATCH( xieQueryImageExtensionReq ); reply.type = X_Reply; reply.sequenceNum = client->sequence; reply.majorVersion = xieMajorVersion; if (stuff->majorVersion != xieMajorVersion || stuff->minorVersion < xieEarliestMinorVersion || stuff->minorVersion > xieLatestMinorVersion) reply.minorVersion = xieMinorVersion; else reply.minorVersion = stuff->minorVersion; reply.length = sizeof(Preferred_levels)>>2; #if XIE_FULL reply.serviceClass = xieValFull; #else reply.serviceClass = xieValDIS; #endif reply.alignment = ALIGNMENT; reply.unconstrainedMantissa = UNCONSTRAINED_MANTISSA; reply.unconstrainedMaxExp = UNCONSTRAINED_MAX_EXPONENT; reply.unconstrainedMinExp = UNCONSTRAINED_MIN_EXPONENT; /* If this is the first QueryImageExtension for this client, register fake_id with Core X to get a closedown notification later */ if (client_table[client->index].Shutdown_id == 0) if (!RegisterXieClient(client, reply.minorVersion)) return ( BadAlloc ); /*** Take care of swapping bytes if necessary ***/ if (client->swapped) { register int n; swaps(&reply.sequenceNum,n); swapl(&reply.length,n); swaps(&reply.majorVersion,n); swaps(&reply.minorVersion,n); swaps(&reply.unconstrainedMantissa,n); swapl(&reply.unconstrainedMaxExp,n); swapl(&reply.unconstrainedMinExp,n); } WriteToClient(client,sz_xieQueryImageExtensionReply,(char*)&reply); /* * Send the list of preferred levels (swapped as necessary) */ if(reply.length) if(client->swapped) CopySwap32Write(client,sizeof(Preferred_levels),Preferred_levels); else WriteToClient(client,sizeof(Preferred_levels),(char*)Preferred_levels); return(Success); } /**********************************************************************/ SProcQueryImageExtension(client) register ClientPtr client; { REQUEST(xieQueryImageExtensionReq); register int n; swaps(&stuff->length,n); swaps(&stuff->majorVersion, n); swaps(&stuff->minorVersion, n); return( ProcQueryImageExtension(client) ); } /************************************************************************/ static int DdxInit() { return Success; } /**********************************************************************/ static int DeleteXieClient(data, id) pointer data; XID id; { bzero((char *)&(client_table[CLIENT_ID(id)]), sizeof(struct _client_table)); } /**********************************************************************/ static void XieReset (extEntry) ExtensionEntry *extEntry; { #ifdef REPORT_MEMORY_LEAKS /* memory leak debug code */ /* Initialize client table */ bzero((char *)client_table, sizeof(client_table)); if(ALLOCS) /* check on outstanding mallocs and callocs */ ErrorF("XieReset: %d allocs still outstanding.\n", ALLOCS); if(STRIPS || BYTES) /* check on outstanding data manager allocs */ ErrorF("XieReset: %d strips with %d data bytes still outstanding.\n", STRIPS, BYTES); #endif } /**** End of session.c ****/