+++ /dev/null
-/* $TOG: fserve.c /main/49 1997/06/10 11:23:56 barstow $ */
-/*
-
-Copyright (c) 1990 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.
-
-*/
-/* $XFree86: xc/lib/font/fc/fserve.c,v 3.4.2.2 1997/06/11 12:08:41 dawes Exp $ */
-
-/*
- * Copyright 1990 Network Computing Devices
- *
- * Permission to use, copy, modify, distribute, and sell this software and
- * its documentation for any purpose is hereby granted without fee, provided
- * that the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the names of Network Computing Devices, or Digital
- * not be used in advertising or publicity pertaining to distribution
- * of the software without specific, written prior permission.
- *
- * NETWORK COMPUTING DEVICES, AND DIGITAL AND DISCLAIM ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES,
- * OR DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
- * THIS SOFTWARE.
- *
- * Author: Dave Lemke, Network Computing Devices, Inc
- */
-/*
- * font server specific font access
- */
-
-#ifdef WIN32
-#define _WILLWINSOCK_
-#endif
-#include <X11/X.h>
-#include <X11/Xos.h>
-#include "X11/Xpoll.h"
-#include "FS.h"
-#include "FSproto.h"
-#include "fontmisc.h"
-#include "fontstruct.h"
-#include "fservestr.h"
-#include <errno.h>
-#if defined(X_NOT_STDC_ENV) && !defined(__EMX__)
-extern int errno;
-#define Time_t long
-extern Time_t time ();
-#else
-#include <time.h>
-#define Time_t time_t
-#endif
-
-#ifdef NCD
-#include <ncd/nvram.h>
-#endif
-
-#ifndef NULL
-#define NULL 0
-#endif
-
-#ifndef MIN
-#define MIN(a,b) ((a)<(b)?(a):(b))
-#endif
-
-#define NONZEROMETRICS(pci) ((pci)->leftSideBearing || \
- (pci)->rightSideBearing || \
- (pci)->ascent || \
- (pci)->descent || \
- (pci)->characterWidth)
-
-
-extern FontPtr find_old_font();
-
-extern int _fs_build_range();
-
-static int fs_read_glyphs();
-static int fs_read_list();
-static int fs_read_list_info();
-
-static int fs_font_type;
-extern fd_set _fs_fd_mask;
-
-static void fs_block_handler();
-static int fs_wakeup();
-
-static FSFpePtr awaiting_reconnect;
-
-void _fs_connection_died();
-static int _fs_restart_connection();
-static void _fs_try_reconnect();
-static int fs_send_query_info();
-static int fs_send_query_extents();
-static int fs_send_query_bitmaps();
-static int fs_send_close_font();
-static void fs_client_died();
-static void _fs_client_access();
-static void _fs_client_resolution();
-
-char _fs_glyph_undefined;
-char _fs_glyph_requested;
-char _fs_glyph_zero_length;
-
-/*
- * Font server access
- *
- * the basic idea for the non-blocking access is to have the function
- * called multiple times until the actual data is returned, instead
- * of ClientBlocked.
- *
- * the first call to the function will cause the request to be sent to
- * the font server, and a block record to be stored in the fpe's list
- * of outstanding requests. the FS block handler also sticks the
- * proper set of fd's into the select mask. when data is ready to be
- * read in, the FS wakup handler will be hit. this will read the
- * data off the wire into the proper block record, and then signal the
- * client that caused the block so that it can restart. it will then
- * call the access function again, which will realize that the data has
- * arrived and return it.
- */
-
-
-/* XXX this should probably be a macro once its fully debugged */
-/* ARGSUSED */
-static void
-_fs_add_req_log(conn, opcode)
- FSFpePtr conn;
- int opcode;
-{
-
-#ifdef DEBUG
- conn->reqbuffer[conn->reqindex++] = opcode;
- if (conn->reqindex == REQUEST_LOG_SIZE)
- conn->reqindex = 0;
-#endif
-
- conn->current_seq++;
-}
-
-static Bool
-fs_name_check(name)
- char *name;
-{
-#ifdef __EMX__
- /* OS/2 uses D:/XFree86/.... as fontfile pathnames, so check that
- * there is not only a protocol/ prefix, but also that the first chars
- * are not a drive letter
- */
- if (name && isalpha(*name) && name[1] == ':')
- return FALSE;
-#endif
- /* Just make sure there is a protocol/ prefix */
- return (name && *name != '/' && strchr(name, '/'));
-}
-
-static void
-_fs_client_resolution(conn)
- FSFpePtr conn;
-{
- fsSetResolutionReq srreq;
- int num_res;
- FontResolutionPtr res;
-
- res = GetClientResolutions(&num_res);
-
- if (num_res) {
- srreq.reqType = FS_SetResolution;
- srreq.num_resolutions = num_res;
- srreq.length = (SIZEOF(fsSetResolutionReq) +
- (num_res * SIZEOF(fsResolution)) + 3) >> 2;
-
- _fs_add_req_log(conn, FS_SetResolution);
- if (_fs_write(conn, (char *) &srreq, SIZEOF(fsSetResolutionReq)) != -1)
- (void)_fs_write_pad(conn, (char *) res,
- (num_res * SIZEOF(fsResolution)));
- }
-}
-
-/*
- * sends the stuff that's meaningful to a newly opened or reset FS
- */
-static int
-fs_send_init_packets(conn)
- FSFpePtr conn;
-{
- fsSetResolutionReq srreq;
- fsSetCataloguesReq screq;
- fsListCataloguesReq lcreq;
- fsListCataloguesReply lcreply;
- int num_cats,
- clen,
- len;
- char *client_cat = (char *) 0,
- *cp,
- *sp,
- *end;
- int num_res;
- FontResolutionPtr res;
- int err = Successful;
-
-#define CATALOGUE_SEP '+'
-
- res = GetClientResolutions(&num_res);
- if (num_res) {
- srreq.reqType = FS_SetResolution;
- srreq.num_resolutions = num_res;
- srreq.length = (SIZEOF(fsSetResolutionReq) +
- (num_res * SIZEOF(fsResolution)) + 3) >> 2;
-
- _fs_add_req_log(conn, FS_SetResolution);
- if (_fs_write(conn, (char *) &srreq, SIZEOF(fsSetResolutionReq)) == -1)
- {
- err = BadFontPath;
- goto fail;
- }
- if (_fs_write_pad(conn, (char *) res, (num_res * SIZEOF(fsResolution))) == -1)
- {
- err = BadFontPath;
- goto fail;
- }
- }
- sp = strrchr(conn->servername, '/');
-
- /* don't get tricked by a non-existant catalogue list */
- if (sp == strchr(conn->servername, '/')) {
- /*
- * try original name -- this might be an alternate with no catalogues
- */
- sp = strrchr(conn->requestedname, '/');
- if (sp == strchr(conn->requestedname, '/'))
- sp = (char *) 0;
- }
- if (sp) { /* turn cats into counted list */
- sp++;
- /* allocate more than enough room */
- cp = client_cat = (char *) xalloc(strlen(conn->servername));
- if (!cp) {
- err = BadAlloc;
- goto fail;
- }
- num_cats = 0;
- while (*sp) {
- end = strchr(sp, CATALOGUE_SEP);
- if (!end)
- end = sp + strlen(sp);
- *cp++ = len = end - sp;
- num_cats++;
- memmove(cp, sp, len);
- sp += len;
- if (*sp == CATALOGUE_SEP)
- sp++;
- cp += len;
- }
- clen = cp - client_cat;
- /* our list checked out, so send it */
- screq.reqType = FS_SetCatalogues;
- screq.num_catalogues = num_cats;
- screq.length = (SIZEOF(fsSetCataloguesReq) + clen + 3) >> 2;
-
- _fs_add_req_log(conn, FS_SetCatalogues);
- if (_fs_write(conn, (char *) &screq, SIZEOF(fsSetCataloguesReq)) == -1)
- {
- err = BadFontPath;
- goto fail;
- }
- if (_fs_write_pad(conn, (char *) client_cat, clen) == -1)
- {
- err = BadFontPath;
- goto fail;
- }
-
- /*
- * now sync up with the font server, to see if an error was generated
- * by a bogus catalogue
- */
- lcreq.reqType = FS_ListCatalogues;
- lcreq.length = (SIZEOF(fsListCataloguesReq)) >> 2;
- lcreq.maxNames = 0;
- lcreq.nbytes = 0;
- _fs_add_req_log(conn, FS_SetCatalogues);
- if (_fs_write(conn, (char *) &lcreq, SIZEOF(fsListCataloguesReq)) == -1)
- {
- err = BadFontPath;
- goto fail;
- }
-
- /*
- * next bit will either by the ListCats reply, or an error followed by
- * the reply
- */
- if (_fs_read(conn, (char *) &lcreply, SIZEOF(fsGenericReply)) == -1) {
- err = BadFontPath;
- goto fail;
- }
- if (lcreply.type == FS_Error &&
- ((fsError *) & lcreply)->major_opcode == FS_SetCatalogues) {
- _fs_eat_rest_of_error(conn, (fsError *) & lcreply);
- /* get ListCats response */
- (void) _fs_read(conn, (char *) &lcreply,
- SIZEOF(fsListCataloguesReply));
- err = BadFontPath;
- goto fail;
- }
- /* must be reply, swallow the rest of it */
- _fs_eat_rest_of_error(conn, (fsError *) & lcreply);
- }
-fail:
- xfree(client_cat);
- return err;
-}
-
-/*
- * close font server and remove any state associated with
- * this connection - this includes any client records.
- */
-
-static void
-fs_close_conn(conn)
- FSFpePtr conn;
-{
- FSClientPtr client, nclient;
-
- /* XXX - hack. The right fix is to remember that the font server
- has gone away when we first discovered it. */
- if (conn->trans_conn)
- (void) _FontTransClose (conn->trans_conn);
-
- if (conn->fs_fd != -1)
- FD_CLR(conn->fs_fd, &_fs_fd_mask);
-
- for (client = conn->clients; client; client = nclient)
- {
- nclient = client->next;
- xfree (client);
- }
- conn->clients = NULL;
-}
-
-/*
- * the wakeup handlers have to be set when the FPE is open, and not
- * removed until it is freed, in order to handle unexpected data, like
- * events
- */
-/* ARGSUSED */
-static int
-fs_init_fpe(fpe)
- FontPathElementPtr fpe;
-{
- FSFpePtr conn;
- char *name;
- int err;
-
- /* open font server */
- /* create FS specific fpe info */
- errno = 0;
-
- name = fpe->name;
-
- /* hack for old style names */
- if (*name == ':')
- name++; /* skip ':' */
-
- conn = _fs_open_server(name);
- if (conn) {
- conn->requestedname = fpe->name; /* stash this for later init use */
- fpe->private = (pointer) conn;
- err = fs_send_init_packets(conn);
- if (err != Successful) {
- fs_close_conn(conn);
- xfree(conn->servername);
- xfree(conn->alts);
- xfree(conn);
- return err;
- }
- if (init_fs_handlers(fpe, fs_block_handler) != Successful)
- return AllocError;
- FD_SET(conn->fs_fd, &_fs_fd_mask);
- conn->attemptReconnect = TRUE;
-
-#ifdef NCD
- if (configData.ExtendedFontDiags)
- printf("Connected to font server \"%s\"\n", name);
-#endif
-
- return err;
- }
-
-#ifdef DEBUG
- fprintf(stderr, "failed to connect to FS \"%s\"\n", name);
-#endif
-
-#ifdef NCD
- if (configData.ExtendedFontDiags)
- printf("Failed to connect to font server \"%s\"\n", name);
-#endif
-
- return (errno == ENOMEM) ? AllocError : BadFontPath;
-}
-
-static int
-fs_reset_fpe(fpe)
- FontPathElementPtr fpe;
-{
- (void) fs_send_init_packets((FSFpePtr) fpe->private);
- return Successful;
-}
-
-/*
- * this shouldn't be called till all refs to the FPE are gone
- */
-
-static int
-fs_free_fpe(fpe)
- FontPathElementPtr fpe;
-{
- FSFpePtr conn = (FSFpePtr) fpe->private;
- FSFpePtr recon,
- *prev;
- prev = &awaiting_reconnect;
- while (*prev) {
- recon = *prev;
- if (conn == recon) {
- *prev = recon->next_reconnect;
- break;
- }
- prev = &recon->next_reconnect;
- }
-
- fs_close_conn(conn);
-
- remove_fs_handlers(fpe, fs_block_handler,
- !XFD_ANYSET(&_fs_fd_mask) && !awaiting_reconnect);
-
- xfree(conn->alts);
- xfree(conn->servername);
- xfree(conn);
- fpe->private = (pointer) 0;
-
-#ifdef NCD
- if (configData.ExtendedFontDiags)
- printf("Disconnected from font server \"%s\"\n", fpe->name);
-#endif
-
- return Successful;
-}
-
-static FSBlockDataPtr
-fs_new_block_rec(fpe, client, type)
- FontPathElementPtr fpe;
- pointer client;
- int type;
-{
- FSBlockDataPtr blockrec,
- br;
- FSFpePtr fsfpe = (FSFpePtr) fpe->private;
- int size;
-
- blockrec = (FSBlockDataPtr) xalloc(sizeof(FSBlockDataRec));
- if (!blockrec)
- return (FSBlockDataPtr) 0;
- switch (type) {
- case FS_OPEN_FONT:
- size = sizeof(FSBlockedFontRec);
- break;
- case FS_LOAD_GLYPHS:
- size = sizeof(FSBlockedGlyphRec);
- break;
- case FS_LIST_FONTS:
- size = sizeof(FSBlockedListRec);
- break;
- case FS_LIST_WITH_INFO:
- size = sizeof(FSBlockedListInfoRec);
- break;
- default:
- break;
- }
- blockrec->data = (pointer) xalloc(size);
- if (!blockrec->data) {
- xfree(blockrec);
- return (FSBlockDataPtr) 0;
- }
- blockrec->client = client;
- blockrec->sequence_number = fsfpe->current_seq;
- blockrec->type = type;
- blockrec->depending = 0;
- blockrec->next = (FSBlockDataPtr) 0;
-
- /* stick it on the end of the list (since its expected last) */
- br = (FSBlockDataPtr) fsfpe->blocked_requests;
- if (!br) {
- fsfpe->blocked_requests = (pointer) blockrec;
- } else {
- while (br->next)
- br = br->next;
- br->next = blockrec;
- }
-
- return blockrec;
-}
-
-static void
-_fs_remove_block_rec(conn, blockrec)
- FSFpePtr conn;
- FSBlockDataPtr blockrec;
-{
- FSBlockDataPtr br,
- last;
-
- last = (FSBlockDataPtr) 0;
- br = (FSBlockDataPtr) conn->blocked_requests;
- while (br) {
- if (br == blockrec) {
- if (last)
- last->next = br->next;
- else
- conn->blocked_requests = (pointer) br->next;
- if (br->type == FS_LOAD_GLYPHS)
- {
- FSBlockedGlyphPtr bglyph = (FSBlockedGlyphPtr)br->data;
- if (bglyph->num_expected_ranges)
- xfree(bglyph->expected_ranges);
- }
- xfree(br->data);
- xfree(br);
- return;
- }
- last = br;
- br = br->next;
- }
-}
-
-static void
-signal_clients_depending(clients_depending)
-FSClientsDependingPtr *clients_depending;
-{
- FSClientsDependingPtr p = *clients_depending, p2;
- *clients_depending = (FSClientsDependingPtr)0;
-
- while (p != (FSClientsDependingPtr)0)
- {
- p2 = p;
- ClientSignal(p->client);
- p = p->next;
- xfree(p2);
- }
-}
-
-static int
-add_clients_depending(clients_depending, client)
-FSClientsDependingPtr *clients_depending;
-pointer client;
-{
- while (*clients_depending != (FSClientsDependingPtr)0)
- {
- if ((*clients_depending)->client == client) return Suspended;
- clients_depending = &(*clients_depending)->next;
- }
- *clients_depending = (FSClientsDependingPtr)xalloc(
- sizeof(FSClientsDependingRec));
- if (!*clients_depending)
- return BadAlloc;
-
- (*clients_depending)->client = client;
- (*clients_depending)->next = 0;
- return Suspended;
-}
-
-static void
-clean_aborted_blockrec(blockrec)
- FSBlockDataPtr blockrec;
-{
-
- switch(blockrec->type)
- {
- case FS_LOAD_GLYPHS:
- {
- FSBlockedGlyphPtr bglyph = (FSBlockedGlyphPtr)blockrec->data;
- FontPtr pfont = bglyph->pfont;
- int num_expected_ranges = bglyph->num_expected_ranges;
- fsRange *expected_ranges = bglyph->expected_ranges;
- _fs_clean_aborted_loadglyphs(pfont,
- num_expected_ranges,
- expected_ranges);
- signal_clients_depending(&bglyph->clients_depending);
- break;
- }
- case FS_OPEN_FONT:
- {
- FSBlockedFontPtr bfont = (FSBlockedFontPtr)blockrec->data;
- signal_clients_depending(&bfont->clients_depending);
- break;
- }
- default:
- break;
- }
-}
-
-static void
-fs_abort_blockrec(conn, blockrec)
- FSFpePtr conn;
- FSBlockDataPtr blockrec;
-{
- clean_aborted_blockrec(blockrec);
- _fs_remove_block_rec(conn, blockrec);
-}
-
-
-static void
-fs_free_font(bfont)
- FSBlockedFontPtr bfont;
-{
- FontPtr pfont;
- FSFontDataRec *fsd;
-
- pfont = bfont->pfont;
- fsd = (FSFontDataRec *) pfont->fpePrivate;
-
- /* xfree better be able to handle NULL */
- (*pfont->unload_font)(pfont);
- DeleteFontClientID(fsd->fontid);
- xfree(fsd->name);
- xfree(pfont->info.isStringProp);
- xfree(pfont->info.props);
-
- xfree(pfont);
- xfree(fsd);
-
- bfont->pfont = (FontPtr) 0;
-}
-
-static void
-_fs_cleanup_font(bfont)
- FSBlockedFontPtr bfont;
-{
- FSFontDataRec *fsd;
-
- if (bfont->pfont)
- {
- fsd = (FSFontDataRec *) bfont->pfont->fpePrivate;
-
- /* make sure the FS knows we choked on it */
- fs_send_close_font(fsd->fpe, bfont->fontid);
-
- fs_free_font(bfont);
- }
- bfont->errcode = AllocError;
-}
-
-
-static int
-fs_read_open_font(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedFontPtr bfont = (FSBlockedFontPtr) blockrec->data;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsOpenBitmapFontReply rep;
- FSBlockDataPtr blockOrig;
- FSBlockedFontPtr origBfont;
-
- /* pull out the OpenFont reply */
- memcpy(&rep, &blockrec->header, SIZEOF(fsGenericReply));
-
- if (rep.type == FS_Error) {
- _fs_eat_rest_of_error(conn, (fsError *) & rep);
- return BadFontName;
- } else { /* get rest of reply */
- if (_fs_read(conn, (char *) &rep + SIZEOF(fsGenericReply),
- SIZEOF(fsOpenBitmapFontReply) - SIZEOF(fsGenericReply)) == -1) {
- /* If we're not reopening a font, we'll allocate the
- structures again after connection is reestablished. */
- if (!(bfont->flags & FontReopen)) fs_free_font(bfont);
- return StillWorking;
- }
- }
-
- /* If we're not reopening a font and FS detected a duplicate font
- open request, replace our reference to the new font with a
- reference to an existing font (possibly one not finished
- opening). If this is a reopen, keep the new font reference...
- it's got the metrics and extents we read when the font was opened
- before. This also gives us the freedom to easily close the font
- if we we decide (in fs_read_query_info()) that we don't like what
- we got. */
-
- if (rep.otherid && !(bfont->flags & FontReopen)) {
- (void) fs_send_close_font(fpe, bfont->fontid);
-
- /* Find old font if we're completely done getting it from server. */
- fs_free_font(bfont);
- bfont->pfont = find_old_font(rep.otherid);
- bfont->fontid = rep.otherid;
- bfont->state = FS_DONE_REPLY;
- /*
- * look for a blocked request to open the same font
- */
- for (blockOrig = (FSBlockDataPtr) conn->blocked_requests;
- blockOrig;
- blockOrig = blockOrig->next) {
- if (blockOrig != blockrec && blockOrig->type == FS_OPEN_FONT) {
- origBfont = (FSBlockedFontPtr) blockOrig->data;
- if (origBfont->fontid == rep.otherid) {
- blockrec->depending = blockOrig->depending;
- blockOrig->depending = blockrec;
- bfont->state = FS_DEPENDING;
- bfont->pfont = origBfont->pfont;
- break;
- }
- }
- }
- if (bfont->pfont == NULL)
- {
- /* XXX - something nasty happened */
- return BadFontName;
- }
- return AccessDone;
- }
-
- bfont->pfont->info.cachable = rep.cachable != 0;
- bfont->state = FS_INFO_REPLY;
- /* ask for the next stage */
- (void) fs_send_query_info(fpe, blockrec);
- return StillWorking;
-}
-
-
-static int
-fs_read_query_info(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedFontPtr bfont = (FSBlockedFontPtr) blockrec->data;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsQueryXInfoReply rep;
- fsPropInfo pi;
- fsPropOffset *po;
- pointer pd;
- unsigned long prop_len;
- FSBlockedFontRec newbfont, *oldbfont;
- FontRec newpfont, *oldpfont;
- int err;
-
- /* If this is a reopen, accumulate the query info into a dummy
- font and compare to our original data. */
- if (bfont->flags & FontReopen)
- {
- newbfont = *(oldbfont = bfont);
- bfont = &newbfont;
- newpfont = *(oldpfont = oldbfont->pfont);
- newpfont.info.isStringProp = NULL;
- newpfont.info.props = NULL;
- newbfont.pfont = &newpfont;
- err = StillWorking;
- }
-
- /* pull out the QueryXInfo reply */
- memcpy(&rep, &blockrec->header, SIZEOF(fsGenericReply));
- if (_fs_read(conn, (char *) &rep + SIZEOF(fsGenericReply),
- SIZEOF(fsQueryXInfoReply) - SIZEOF(fsGenericReply)) == -1) {
- if (bfont->flags & FontReopen) goto bail;
- fs_free_font(bfont);
- return StillWorking;
- }
- /* move the data over */
- fsUnpack_XFontInfoHeader(&rep, &bfont->pfont->info);
- _fs_init_fontinfo(conn, &bfont->pfont->info);
-
- if (bfont->pfont->info.terminalFont)
- {
- bfont->format =
- (bfont->format & ~ (BitmapFormatImageRectMask)) |
- BitmapFormatImageRectMax;
- }
-
- if (_fs_read(conn, (char *) &pi, SIZEOF(fsPropInfo)) == -1) {
- if (bfont->flags & FontReopen) goto bail;
- fs_free_font(bfont);
- return StillWorking;
- }
- prop_len = pi.num_offsets * SIZEOF(fsPropOffset);
- po = (fsPropOffset *) xalloc(prop_len);
- pd = (pointer) xalloc(pi.data_len);
- if (!po || !pd) {
- xfree(pd);
- xfree(po);
- /* clear the wire */
- (void) _fs_drain_bytes(conn, prop_len + pi.data_len);
- /* clean up the font */
- if (bfont->flags & FontReopen) { err = AllocError ; goto bail; }
- (void) _fs_cleanup_font(bfont);
- return AllocError;
- }
- if (_fs_read_pad(conn, (char *) po, prop_len) == -1 ||
- _fs_read_pad(conn, (char *) pd, pi.data_len) == -1) {
- xfree(pd);
- xfree(po);
- if (bfont->flags & FontReopen) goto bail;
- fs_free_font(bfont);
- return StillWorking;
- }
- if (_fs_convert_props(&pi, po, pd, &bfont->pfont->info) == -1)
- {
- xfree(po);
- xfree(pd);
- if (bfont->flags & FontReopen) { err = AllocError ; goto bail; }
- (void) _fs_cleanup_font(bfont);
- return AllocError;
- }
- xfree(po);
- xfree(pd);
-
- if (bfont->flags & FontReopen)
- {
- int i;
-
- err = BadFontName;
-
- /* We're reopening a font that we lost because of a downed
- connection. In the interest of avoiding corruption from
- opening a different font than the old one (we already have
- its metrics, extents, and probably some of its glyphs),
- verify that the metrics and properties all match. */
-
- if (newpfont.info.firstCol != oldpfont->info.firstCol ||
- newpfont.info.lastCol != oldpfont->info.lastCol ||
- newpfont.info.firstRow != oldpfont->info.firstRow ||
- newpfont.info.lastRow != oldpfont->info.lastRow ||
- newpfont.info.defaultCh != oldpfont->info.defaultCh ||
- newpfont.info.noOverlap != oldpfont->info.noOverlap ||
- newpfont.info.terminalFont != oldpfont->info.terminalFont ||
- newpfont.info.constantMetrics != oldpfont->info.constantMetrics ||
- newpfont.info.constantWidth != oldpfont->info.constantWidth ||
- newpfont.info.inkInside != oldpfont->info.inkInside ||
- newpfont.info.inkMetrics != oldpfont->info.inkMetrics ||
- newpfont.info.allExist != oldpfont->info.allExist ||
- newpfont.info.drawDirection != oldpfont->info.drawDirection ||
- newpfont.info.cachable != oldpfont->info.cachable ||
- newpfont.info.anamorphic != oldpfont->info.anamorphic ||
- newpfont.info.maxOverlap != oldpfont->info.maxOverlap ||
- newpfont.info.fontAscent != oldpfont->info.fontAscent ||
- newpfont.info.fontDescent != oldpfont->info.fontDescent ||
- newpfont.info.nprops != oldpfont->info.nprops)
- goto bail;
-
-#define MATCH(xci1, xci2) \
- (((xci1).leftSideBearing == (xci2).leftSideBearing) && \
- ((xci1).rightSideBearing == (xci2).rightSideBearing) && \
- ((xci1).characterWidth == (xci2).characterWidth) && \
- ((xci1).ascent == (xci2).ascent) && \
- ((xci1).descent == (xci2).descent) && \
- ((xci1).attributes == (xci2).attributes))
-
- if (!MATCH(newpfont.info.maxbounds, oldpfont->info.maxbounds) ||
- !MATCH(newpfont.info.minbounds, oldpfont->info.minbounds) ||
- !MATCH(newpfont.info.ink_maxbounds, oldpfont->info.ink_maxbounds) ||
- !MATCH(newpfont.info.ink_minbounds, oldpfont->info.ink_minbounds))
- goto bail;
-
-#undef MATCH
-
- for (i = 0; i < newpfont.info.nprops; i++)
- if (newpfont.info.isStringProp[i] !=
- oldpfont->info.isStringProp[i] ||
- newpfont.info.props[i].name !=
- oldpfont->info.props[i].name ||
- newpfont.info.props[i].value !=
- oldpfont->info.props[i].value)
- goto bail;
-
- err = Successful;
- bail:
- if (err != Successful && err != StillWorking)
- {
- /* Failure. Close the font. */
- fs_send_close_font(((FSFontDataPtr)oldpfont->fpePrivate)->fpe,
- bfont->fontid);
- ((FSFontDataPtr)oldpfont->fpePrivate)->generation = -1;
- }
- xfree(newpfont.info.isStringProp);
- xfree(newpfont.info.props);
-
- if (err == Successful) oldbfont->state = FS_DONE_REPLY;
- return err;
- }
-
- if (glyphCachingMode == CACHING_OFF ||
- glyphCachingMode == CACHE_16_BIT_GLYPHS && !bfont->pfont->info.lastRow)
- bfont->flags |= FontLoadAll;
-
- bfont->state = FS_EXTENT_REPLY;
-
- fs_send_query_extents(fpe, blockrec);
- return StillWorking;
-}
-
-static int
-fs_read_extent_info(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedFontPtr bfont = (FSBlockedFontPtr) blockrec->data;
- FSFontDataPtr fsd = (FSFontDataPtr) bfont->pfont->fpePrivate;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsQueryXExtents16Reply rep;
- int i;
- int numInfos;
- Bool haveInk = FALSE; /* need separate ink metrics? */
- CharInfoPtr ci,
- pCI;
- FSFontPtr fsfont = (FSFontPtr) bfont->pfont->fontPrivate;
- fsXCharInfo *fsci;
- fsXCharInfo fscilocal;
- pointer fscip;
-
- /* read the QueryXExtents reply */
- memcpy(&rep, &blockrec->header, SIZEOF(fsGenericReply));
- if (_fs_read(conn, (char *) &rep + SIZEOF(fsGenericReply),
- SIZEOF(fsQueryXExtents16Reply) - SIZEOF(fsGenericReply)) == -1) {
- fs_free_font(bfont);
- return StillWorking;
- }
- /* move the data over */
- /* need separate inkMetrics for fixed font server protocol version */
- numInfos = rep.num_extents;
- if (bfont->pfont->info.terminalFont && conn->fsMajorVersion > 1)
- {
- numInfos *= 2;
- haveInk = TRUE;
- }
- ci = pCI = (CharInfoPtr) xalloc(sizeof(CharInfoRec) * numInfos);
-/* XXX this could be done with an ALLOCATE_LOCAL */
- fsci = (fsXCharInfo *) xalloc(SIZEOF(fsXCharInfo) * rep.num_extents);
- if (!pCI || !fsci) {
- xfree(pCI);
- xfree(fsci);
- /* clear the unusable data */
- _fs_drain_bytes(conn, SIZEOF(fsXCharInfo) * rep.num_extents);
- _fs_cleanup_font(bfont);
- return AllocError;
- }
- fsfont->encoding = pCI;
- if (haveInk)
- fsfont->inkMetrics = pCI + rep.num_extents;
- else
- fsfont->inkMetrics = pCI;
-
- if (_fs_read_pad(conn, (char *) fsci,
- SIZEOF(fsXCharInfo) * rep.num_extents) == -1) {
- fs_free_font(bfont);
- xfree(fsci);
- return StillWorking;
- }
- fsd->glyphs_to_get = 0;
- fscip = (pointer) fsci;
- ci = fsfont->inkMetrics;
- for (i = 0; i < rep.num_extents; i++) {
- memcpy(&fscilocal, fscip, SIZEOF(fsXCharInfo)); /* align it */
- _fs_convert_char_info(&fscilocal, &ci->metrics);
- fscip += SIZEOF(fsXCharInfo);
- /* Initialize the bits field for later glyph-caching use */
- if (NONZEROMETRICS(&ci->metrics))
- {
- if (!haveInk &&
- (ci->metrics.leftSideBearing == ci->metrics.rightSideBearing ||
- ci->metrics.ascent == -ci->metrics.descent))
- pCI[i].bits = &_fs_glyph_zero_length;
- else
- {
- pCI[i].bits = &_fs_glyph_undefined;
- fsd->glyphs_to_get++;
- }
- }
- else
- pCI[i].bits = (char *)0;
- ci++;
- }
-
- xfree(fsci);
-
- /* build bitmap metrics, ImageRectMax style */
- if (haveInk)
- {
- FontInfoRec *fi = &bfont->pfont->info;
- CharInfoPtr ii;
-
- ci = fsfont->encoding;
- ii = fsfont->inkMetrics;
- for (i = 0; i < rep.num_extents; i++, ci++, ii++)
- {
- if (NONZEROMETRICS(&ii->metrics))
- {
- ci->metrics.leftSideBearing = FONT_MIN_LEFT(fi);
- ci->metrics.rightSideBearing = FONT_MAX_RIGHT(fi);
- ci->metrics.ascent = FONT_MAX_ASCENT(fi);
- ci->metrics.descent = FONT_MAX_DESCENT(fi);
- ci->metrics.characterWidth = FONT_MAX_WIDTH(fi);
- ci->metrics.attributes = ii->metrics.attributes;
- }
- else
- {
- ci->metrics = ii->metrics;
- }
- }
- }
- {
- unsigned int r, c, numCols, firstCol;
-
- firstCol = bfont->pfont->info.firstCol;
- numCols = bfont->pfont->info.lastCol - firstCol + 1;
- c = bfont->pfont->info.defaultCh;
- fsfont->pDefault = 0;
- if (bfont->pfont->info.lastRow)
- {
- r = c >> 8;
- r -= bfont->pfont->info.firstRow;
- c &= 0xff;
- c -= firstCol;
- if (r < bfont->pfont->info.lastRow-bfont->pfont->info.firstRow+1 &&
- c < numCols)
- fsfont->pDefault = &pCI[r * numCols + c];
- }
- else
- {
- c -= firstCol;
- if (c < numCols)
- fsfont->pDefault = &pCI[c];
- }
- }
- bfont->state = FS_GLYPHS_REPLY;
-
- if (bfont->flags & FontLoadBitmaps) {
- fs_send_query_bitmaps(fpe, blockrec);
- return StillWorking;
- }
- return Successful;
-}
-
-/*
- * XXX should probably continue to read here if we can, but must be sure
- * it's our packet waiting, rather than another interspersed
- */
-static int
-fs_do_open_font(fpe, blockrec, readheader)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
- Bool readheader;
-{
- FSBlockedFontPtr bfont = (FSBlockedFontPtr) blockrec->data;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- int err;
-
- switch (bfont->state) {
- case FS_OPEN_REPLY:
- if (readheader) {
- /* get the next header */
- if (_fs_read(conn, (char *) &blockrec->header,
- SIZEOF(fsGenericReply)) == -1) {
- fs_free_font(bfont);
- err = StillWorking;
- break;
- }
- }
- bfont->errcode = fs_read_open_font(fpe, blockrec);
- if (bfont->errcode != StillWorking) { /* already loaded, or error */
- /* if font's already loaded, massage error code */
- switch (bfont->state) {
- case FS_DONE_REPLY:
- bfont->errcode = Successful;
- break;
- case FS_DEPENDING:
- bfont->errcode = StillWorking;
- break;
- }
- err = bfont->errcode;
- break;
- }
- /* if more data to read or Sync, fall thru, else return */
- if (!(bfont->flags & FontOpenSync)) {
- err = bfont->errcode;
- break;
- } else {
- if (_fs_read(conn, (char *) &blockrec->header,
- SIZEOF(fsGenericReply)) == -1) {
- fs_free_font(bfont);
- err = StillWorking;
- break;
- }
- }
- /* fall through */
- case FS_INFO_REPLY:
- bfont->errcode = fs_read_query_info(fpe, blockrec);
- if (bfont->errcode != StillWorking) {
- err = bfont->errcode;
- break;
- }
- if (!(bfont->flags & FontOpenSync)) {
- err = bfont->errcode;
- break;
- /* if more data to read, fall thru, else return */
- } else {
- if (_fs_read(conn, (char *) &blockrec->header,
- SIZEOF(fsGenericReply))) {
- fs_free_font(bfont);
- err = StillWorking;
- break;
- }
- }
- /* fall through */
- case FS_EXTENT_REPLY:
- bfont->errcode = fs_read_extent_info(fpe, blockrec);
- if (bfont->errcode != StillWorking) {
- err = bfont->errcode;
- break;
- }
- if (!(bfont->flags & FontOpenSync)) {
- err = bfont->errcode;
- break;
- } else if (bfont->flags & FontLoadBitmaps) {
- if (_fs_read(conn, (char *) &blockrec->header,
- SIZEOF(fsGenericReply))) {
- fs_free_font(bfont);
- err = StillWorking;
- break;
- }
- }
- /* fall through */
- case FS_GLYPHS_REPLY:
- if (bfont->flags & FontLoadBitmaps) {
- bfont->errcode = fs_read_glyphs(fpe, blockrec);
- }
- err = bfont->errcode;
- break;
- case FS_DEPENDING: /* can't happen */
- err = bfont->errcode;
- default:
- err = bfont->errcode;
- break;
- }
- if (err != StillWorking) {
- bfont->state = FS_DONE_REPLY; /* for _fs_load_glyphs() */
- while (blockrec = blockrec->depending) {
- bfont = (FSBlockedFontPtr) blockrec->data;
- bfont->errcode = err;
- bfont->state = FS_DONE_REPLY; /* for _fs_load_glyphs() */
- }
- }
- return err;
-}
-
-/* ARGSUSED */
-static void
-fs_block_handler(data, wt, LastSelectMask)
- pointer data;
- struct timeval **wt;
- fd_set* LastSelectMask;
-{
- static struct timeval recon_timeout;
- Time_t now,
- soonest;
- FSFpePtr recon;
-
- XFD_ORSET(LastSelectMask, LastSelectMask, &_fs_fd_mask);
- if (recon = awaiting_reconnect) {
- now = time((Time_t *) 0);
- soonest = recon->time_to_try;
- while (recon = recon->next_reconnect) {
- if (recon->time_to_try < soonest)
- soonest = recon->time_to_try;
- }
- if (soonest < now)
- soonest = now;
- soonest = soonest - now;
- recon_timeout.tv_sec = soonest;
- recon_timeout.tv_usec = 0;
- if (*wt == (struct timeval *) 0) {
- *wt = &recon_timeout;
- } else if ((*wt)->tv_sec > soonest) {
- **wt = recon_timeout;
- }
- }
-}
-
-static void
-fs_handle_unexpected(conn, rep)
- FSFpePtr conn;
- fsGenericReply *rep;
-{
- if (rep->type == FS_Event && rep->data1 == KeepAlive) {
- fsNoopReq req;
-
- /* ping it back */
- req.reqType = FS_Noop;
- req.length = SIZEOF(fsNoopReq) >> 2;
- _fs_add_req_log(conn, FS_Noop);
- _fs_write(conn, (char *) &req, SIZEOF(fsNoopReq));
- }
- /* this should suck up unexpected replies and events */
- _fs_eat_rest_of_error(conn, (fsError *) rep);
-}
-
-static int
-fs_wakeup(fpe, LastSelectMask)
- FontPathElementPtr fpe;
- fd_set* LastSelectMask;
-{
- FSBlockDataPtr blockrec,
- br;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- int err;
- fsGenericReply rep;
-
- if (awaiting_reconnect) {
- _fs_try_reconnect();
- }
- /* see if there's any data to be read */
-
- /*
- * Don't continue if the fd is -1 (which will be true when the
- * font server terminates
- */
- if (conn->fs_fd == -1)
- return FALSE;
-
- if (FD_ISSET(conn->fs_fd, LastSelectMask)) {
-
-#if defined(NOTDEF) || defined(__EMX__) /* bogus - doesn't deal with EOF very well,
- * now does it ... */
- /*
- * make sure it isn't spurious - mouse events seem to trigger extra
- * problems. Under OS/2, this is especially true ...
- */
- if (_fs_data_ready(conn) <= 0) {
- return FALSE;
- }
-#endif
-
- /* get the header */
- if (_fs_read(conn, (char *) &rep, SIZEOF(fsGenericReply)) == -1)
- return FALSE;
-
- /* find the matching block record */
-
- for (br = (FSBlockDataPtr) conn->blocked_requests; br; br = br->next) {
- if ((CARD16)(br->sequence_number & 0xffff) ==
- (CARD16)(rep.sequenceNumber - 1))
- break;
- }
- if (!br) {
- fs_handle_unexpected(conn, &rep);
- return FALSE;
- }
- blockrec = br;
-
- memcpy(&blockrec->header, &rep, SIZEOF(fsGenericReply));
-
- /* go read it, and if we're done, wake up the appropriate client */
- switch (blockrec->type) {
- case FS_OPEN_FONT:
- err = fs_do_open_font(fpe, blockrec, FALSE);
- break;
- case FS_LOAD_GLYPHS:
- err = fs_read_glyphs(fpe, blockrec);
- break;
- case FS_LIST_FONTS:
- err = fs_read_list(fpe, blockrec);
- break;
- case FS_LIST_WITH_INFO:
- err = fs_read_list_info(fpe, blockrec);
- break;
- default:
- break;
- }
-
- if (err != StillWorking) {
- while (blockrec) {
- ClientSignal(blockrec->client);
- blockrec = blockrec->depending;
- }
- }
- /*
- * Xx we could loop here and eat any additional replies, but it should
- * feel more responsive for other clients if we come back later
- */
- } else if (awaiting_reconnect) {
- _fs_try_reconnect();
- }
- return FALSE;
-}
-
-/*
- * Reconnection code
- */
-
-void
-_fs_connection_died(conn)
- FSFpePtr conn;
-{
- if (!conn->attemptReconnect)
- return;
- conn->attemptReconnect = FALSE;
- fs_close_conn(conn);
- conn->time_to_try = time((Time_t *) 0) + FS_RECONNECT_WAIT;
- conn->reconnect_delay = FS_RECONNECT_WAIT;
- conn->fs_fd = -1;
- conn->trans_conn = NULL;
- conn->next_reconnect = awaiting_reconnect;
- awaiting_reconnect = conn;
-}
-
-static int
-_fs_restart_connection(conn)
- FSFpePtr conn;
-{
- FSBlockDataPtr block;
-
- conn->current_seq = 0;
- FD_SET(conn->fs_fd, &_fs_fd_mask);
- if (!fs_send_init_packets(conn))
- return FALSE;
- while (block = (FSBlockDataPtr) conn->blocked_requests) {
- ClientSignal(block->client);
- fs_abort_blockrec(conn, block);
- }
- return TRUE;
-}
-
-static void
-_fs_try_reconnect()
-{
- FSFpePtr conn,
- *prev;
- Time_t now;
-
- prev = &awaiting_reconnect;
- now = time((Time_t *) 0);
- while (conn = *prev) {
- if (now - conn->time_to_try > 0) {
- if (_fs_reopen_server(conn) && _fs_restart_connection(conn)) {
- conn->attemptReconnect = TRUE;
- *prev = conn->next_reconnect;
- if (prev == &awaiting_reconnect) continue;
- } else {
- if (conn->reconnect_delay < FS_MAX_RECONNECT_WAIT)
- conn->reconnect_delay *= 2;
- now = time((Time_t *) 0);
- conn->time_to_try = now + conn->reconnect_delay;
- }
- }
- prev = &conn->next_reconnect;
- }
-}
-
-/*
- * sends the actual request out
- */
-/* ARGSUSED */
-static int
-fs_send_open_font(client, fpe, flags, name, namelen, format, fmask, id, ppfont)
- pointer client;
- FontPathElementPtr fpe;
- Mask flags;
- char *name;
- int namelen;
- fsBitmapFormat format;
- fsBitmapFormatMask fmask;
- XID id;
- FontPtr *ppfont;
-{
- FontPtr newfont;
- FSBlockDataPtr blockrec = NULL;
- FSBlockedFontPtr blockedfont;
- FSFontDataPtr fsd;
- FSFontPtr fsfont;
- FSFpePtr conn;
- fsOpenBitmapFontReq openreq;
- int err = Suspended;
- XID newid;
- unsigned char buf[1024];
- char *fontname;
-
- if (flags & FontReopen)
- {
- Atom nameatom, fn = None;
- int i;
-
- newfont = *ppfont;
- fsd = (FSFontDataPtr)newfont->fpePrivate;
- fsfont = (FSFontPtr)newfont->fontPrivate;
- fpe = newfont->fpe;
- format = fsd->format;
- fmask = fsd->fmask;
- newid = fsd->fontid;
- /* This is an attempt to reopen a font. Did the font have a
- NAME property? */
- if ((nameatom = MakeAtom("FONT", 4, 0)) != None)
- {
- for (i = 0; i < newfont->info.nprops; i++)
- if (newfont->info.props[i].name == nameatom &&
- newfont->info.isStringProp[i])
- {
- fn = newfont->info.props[i].value;
- break;
- }
- }
- if (fn == None || !(name = NameForAtom(fn)))
- {
- name = fsd->name;
- namelen = fsd->namelen;
- }
- else
- namelen = strlen(name);
- }
-
- conn = (FSFpePtr) fpe->private;
- if (namelen > sizeof (buf) - 1)
- return BadFontName;
- _fs_client_access (conn, client, (flags & FontOpenSync) != 0);
- _fs_client_resolution(conn);
-
-
- if (!(flags & FontReopen))
- {
-
- newid = GetNewFontClientID();
-
- /* make the font */
- newfont = (FontPtr) xalloc(sizeof(FontRec));
-
- /* and the FS data */
- fsd = (FSFontDataPtr) xalloc(sizeof(FSFontDataRec));
-
- fsfont = (FSFontPtr) xalloc(sizeof(FSFontRec));
-
- fontname = (char *)xalloc(namelen);
-
- if (!newfont || !fsd || !fsfont || !fontname) {
-lowmem:
- if (!(flags & FontReopen))
- {
- xfree((char *) newfont);
- xfree((char *) fsd);
- xfree((char *) fsfont);
- xfree((char *) fontname);
- }
- if (blockrec) fs_abort_blockrec(conn, blockrec);
- return AllocError;
- }
- bzero((char *) newfont, sizeof(FontRec));
- bzero((char *) fsfont, sizeof(FSFontRec));
- bzero((char *) fsd, sizeof(FSFontDataRec));
- }
-
- /* make a new block record, and add it to the end of the list */
- blockrec = fs_new_block_rec(fpe, client, FS_OPEN_FONT);
- if (!blockrec) {
- goto lowmem;
- }
-
- if (!(flags & FontReopen))
- {
- int bit, byte, scan, glyph;
-
- newfont->refcnt = 0;
- newfont->maxPrivate = -1;
- newfont->devPrivates = (pointer *) 0;
- newfont->format = format;
-
- /* These font components will be needed in packGlyphs */
- CheckFSFormat(format, BitmapFormatMaskBit |
- BitmapFormatMaskByte |
- BitmapFormatMaskScanLineUnit |
- BitmapFormatMaskScanLinePad,
- &bit,
- &byte,
- &scan,
- &glyph,
- NULL);
- newfont->bit = bit;
- newfont->byte = byte;
- newfont->scan = scan;
- newfont->glyph = glyph;
-
- newfont->fpe = fpe;
- newfont->fpePrivate = (pointer) fsd;
- newfont->fontPrivate = (pointer) fsfont;
- _fs_init_font(newfont);
-
- fsd->fpe = fpe;
- fsd->name = fontname;
- fsd->namelen = namelen;
- memcpy(fontname, name, namelen);
- fsd->format = format;
- fsd->fmask = fmask;
- }
- fsd->fontid = newid;
- fsd->generation = conn->generation;
-
- blockedfont = (FSBlockedFontPtr) blockrec->data;
- blockedfont->fontid = newid;
- blockedfont->pfont = newfont;
- blockedfont->state = FS_OPEN_REPLY;
- blockedfont->flags = flags;
- blockedfont->format = format;
- blockedfont->clients_depending = (FSClientsDependingPtr)0;
-
- /* save the ID */
- if (!StoreFontClientFont(blockedfont->pfont, blockedfont->fontid)) {
- goto lowmem;
- }
- /* do an FS_OpenFont, FS_QueryXInfo and FS_QueryXExtents */
- buf[0] = (unsigned char) namelen;
- memcpy(&buf[1], name, namelen);
- namelen++;
- openreq.reqType = FS_OpenBitmapFont;
- openreq.fid = newid;
- openreq.format_hint = format;
- openreq.format_mask = fmask;
- openreq.length = (SIZEOF(fsOpenBitmapFontReq) + namelen + 3) >> 2;
-
- _fs_add_req_log(conn, FS_OpenBitmapFont);
- _fs_write(conn, (char *) &openreq, SIZEOF(fsOpenBitmapFontReq));
- _fs_write_pad(conn, (char *) buf, namelen);
-
-#ifdef NCD
- if (configData.ExtendedFontDiags) {
- memcpy(buf, name, MIN(256, namelen));
- buf[MIN(256, namelen)] = '\0';
- printf("Requesting font \"%s\" from font server \"%s\"\n",
- buf, fpe->name);
- }
-#endif
-
- if (flags & FontOpenSync) {
- err = fs_do_open_font(fpe, blockrec, TRUE);
- if (blockedfont->errcode == Successful) {
- *ppfont = blockedfont->pfont;
- } else {
- _fs_cleanup_font(blockedfont);
- }
- _fs_remove_block_rec(conn, blockrec);
- }
- return err;
-}
-
-static int
-fs_send_query_info(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedFontPtr bfont;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsQueryXInfoReq inforeq;
-
- bfont = (FSBlockedFontPtr) blockrec->data;
-
- inforeq.reqType = FS_QueryXInfo;
- inforeq.id = bfont->fontid;
- inforeq.length = SIZEOF(fsQueryXInfoReq) >> 2;
-
- blockrec->sequence_number = conn->current_seq;
- _fs_add_req_log(conn, FS_QueryXInfo);
- _fs_write(conn, (char *) &inforeq, SIZEOF(fsQueryXInfoReq));
-
- return Successful;
-}
-
-static int
-fs_send_query_extents(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedFontPtr bfont;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsQueryXExtents16Req extreq;
-
- bfont = (FSBlockedFontPtr) blockrec->data;
-
- extreq.reqType = FS_QueryXExtents16;
- extreq.range = fsTrue;
- extreq.fid = bfont->fontid;
- extreq.num_ranges = 0;
- extreq.length = SIZEOF(fsQueryXExtents16Req) >> 2;
-
- blockrec->sequence_number = conn->current_seq;
- _fs_add_req_log(conn, FS_QueryXExtents16);
- _fs_write(conn, (char *) &extreq, SIZEOF(fsQueryXExtents16Req));
-
- return Successful;
-}
-
-static int
-fs_send_query_bitmaps(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedFontPtr bfont;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsQueryXBitmaps16Req bitreq;
-
-
- bfont = (FSBlockedFontPtr) blockrec->data;
-
- /* send the request */
- bitreq.reqType = FS_QueryXBitmaps16;
- bitreq.fid = bfont->fontid;
- bitreq.format = bfont->format;
- bitreq.range = TRUE;
- bitreq.length = SIZEOF(fsQueryXBitmaps16Req) >> 2;
- bitreq.num_ranges = 0;
-
- blockrec->sequence_number = conn->current_seq;
- _fs_add_req_log(conn, FS_QueryXBitmaps16);
- _fs_write(conn, (char *) &bitreq, SIZEOF(fsQueryXBitmaps16Req));
-
- return Successful;
-}
-
-/* ARGSUSED */
-static int
-fs_open_font(client, fpe, flags, name, namelen, format, fmask, id, ppfont,
- alias, non_cachable_font)
- pointer client;
- FontPathElementPtr fpe;
- Mask flags;
- char *name;
- fsBitmapFormat format;
- fsBitmapFormatMask fmask;
- int namelen;
- XID id;
- FontPtr *ppfont;
- char **alias;
- FontPtr non_cachable_font; /* Not used in this FPE */
-{
- FSFpePtr conn = (FSFpePtr) fpe->private;
- FSBlockDataPtr blockrec;
- FSBlockedFontPtr blockedfont;
- int err;
-
- /* libfont interface expects ImageRectMin glyphs */
- format = format & ~BitmapFormatImageRectMask | BitmapFormatImageRectMin;
-
- *alias = (char *) 0;
- /* XX if we find the blockrec for the font */
- blockrec = (FSBlockDataPtr) conn->blocked_requests;
- while (blockrec != (FSBlockDataPtr) 0) {
- if (blockrec->type == FS_OPEN_FONT &&
- blockrec->client == client) {
- blockedfont = (FSBlockedFontPtr) blockrec->data;
- err = blockedfont->errcode;
- if (err == Successful) {
- *ppfont = blockedfont->pfont;
- } else {
- _fs_cleanup_font(blockedfont);
- }
- /* cleanup */
- _fs_remove_block_rec(conn, blockrec);
- return err;
- }
- blockrec = blockrec->next;
- }
- return fs_send_open_font(client, fpe, flags, name, namelen, format, fmask,
- id, ppfont);
-}
-
-/* ARGSUSED */
-static int
-fs_send_close_font(fpe, id)
- FontPathElementPtr fpe;
- Font id;
-{
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsCloseReq req;
-
- /* tell the font server to close the font */
- req.reqType = FS_CloseFont;
- req.length = SIZEOF(fsCloseReq) >> 2;
- req.id = id;
- _fs_add_req_log(conn, FS_CloseFont);
- _fs_write(conn, (char *) &req, SIZEOF(fsCloseReq));
-
- return Successful;
-}
-
-/* ARGSUSED */
-static int
-fs_close_font(fpe, pfont)
- FontPathElementPtr fpe;
- FontPtr pfont;
-{
- FSFontDataPtr fsd = (FSFontDataPtr) pfont->fpePrivate;
- FSFpePtr conn = (FSFpePtr) fpe->private;
-
- /* XXX we may get called after the resource DB has been cleaned out */
- if (find_old_font(fsd->fontid))
- DeleteFontClientID(fsd->fontid);
- if (conn->generation == fsd->generation)
- fs_send_close_font(fpe, fsd->fontid);
- (*pfont->unload_font) (pfont);
-
-
- xfree(fsd->name);
- xfree(fsd);
- xfree(pfont->info.isStringProp);
- xfree(pfont->info.props);
- xfree(pfont->devPrivates);
- xfree(pfont);
-
-
- return Successful;
-}
-
-static int
-fs_read_glyphs(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedGlyphPtr bglyph = (FSBlockedGlyphPtr) blockrec->data;
- FSBlockedFontPtr bfont = (FSBlockedFontPtr) blockrec->data;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- FontPtr pfont = bglyph->pfont; /* works for either blocked font
- or glyph rec... pfont is at
- the very beginning of both
- blockrec->data structures */
- FSFontDataPtr fsd = (FSFontDataPtr) (pfont->fpePrivate);
- FSFontPtr fsdata = (FSFontPtr) pfont->fontPrivate;
- FontInfoPtr pfi = &pfont->info;
- fsQueryXBitmaps16Reply rep;
- fsOffset32 *ppbits;
- fsOffset32 local_off;
- char *off_adr;
- pointer pbitmaps;
- char *bits;
- int glyph_size,
- offset_size,
- i,
- err;
- int nranges = 0;
- fsRange *ranges, *nextrange;
- unsigned long minchar, maxchar;
-
- /* get reply header */
- memcpy(&rep, &blockrec->header, SIZEOF(fsGenericReply));
- if (rep.type == FS_Error) {
-/* XXX -- translate FS error */
- _fs_eat_rest_of_error(conn, (fsError *) & rep);
- err = AllocError;
- goto bail;
- }
- if (_fs_read(conn, (char *) &rep + SIZEOF(fsGenericReply),
- SIZEOF(fsQueryXBitmaps16Reply) - SIZEOF(fsGenericReply)) == -1) {
- if (blockrec->type == FS_OPEN_FONT)
- fs_free_font(bfont);
- return StillWorking;
- }
- /* allocate space for glyphs */
- offset_size = SIZEOF(fsOffset32) * (rep.num_chars);
- glyph_size = (rep.length << 2) - SIZEOF(fsQueryXBitmaps16Reply)
- - offset_size;
- ppbits = (fsOffset32 *) xalloc(offset_size);
- pbitmaps = (pointer) xalloc(glyph_size);
- if (glyph_size && !pbitmaps || !ppbits)
- {
- xfree(pbitmaps);
- xfree(ppbits);
-
- /* clear wire */
- (void) _fs_drain_bytes_pad(conn, offset_size);
- (void) _fs_drain_bytes_pad(conn, glyph_size);
-
- if (blockrec->type == FS_OPEN_FONT)
- _fs_cleanup_font(bfont);
- err = AllocError;
- goto bail;
- }
-
- /* read offsets */
- if (_fs_read_pad(conn, (char *) ppbits, offset_size) == -1) {
- if (blockrec->type == FS_OPEN_FONT)
- fs_free_font(bfont);
- return StillWorking;
- }
-
- /* read glyphs */
- if (_fs_read_pad(conn, (char *) pbitmaps, glyph_size) == -1) {
- if (blockrec->type == FS_OPEN_FONT)
- fs_free_font(bfont);
- return StillWorking;
- }
-
- if (blockrec->type == FS_LOAD_GLYPHS)
- {
- nranges = bglyph->num_expected_ranges;
- nextrange = ranges = bglyph->expected_ranges;
- }
-
- /* place the incoming glyphs */
- if (nranges)
- {
- /* We're operating under the assumption that the ranges
- requested in the LoadGlyphs call were all legal for this
- font, and that individual ranges do not cover multiple
- rows... fs_build_range() is designed to ensure this. */
- minchar = (nextrange->min_char_high - pfi->firstRow) *
- (pfi->lastCol - pfi->firstCol + 1) +
- nextrange->min_char_low - pfi->firstCol;
- maxchar = (nextrange->max_char_high - pfi->firstRow) *
- (pfi->lastCol - pfi->firstCol + 1) +
- nextrange->max_char_low - pfi->firstCol;
- nextrange++;
- }
- else
- {
- minchar = 0;
- maxchar = rep.num_chars;
- }
-
- off_adr = (char *)ppbits;
- for (i = 0; i < rep.num_chars; i++)
- {
- memcpy(&local_off, off_adr, SIZEOF(fsOffset32)); /* align it */
- if (blockrec->type == FS_OPEN_FONT ||
- fsdata->encoding[minchar].bits == &_fs_glyph_requested)
- {
- if (local_off.length)
- {
- bits = (char *)xalloc(local_off.length);
- if (bits == NULL)
- {
- xfree(ppbits);
- xfree(pbitmaps);
- err = AllocError;
- goto bail;
- }
- memcpy(bits, pbitmaps + local_off.position,
- local_off.length);
- }
- else if (NONZEROMETRICS(&fsdata->encoding[minchar].metrics))
- bits = &_fs_glyph_zero_length;
- else
- bits = 0;
- if (fsdata->encoding[minchar].bits == &_fs_glyph_requested)
- fsd->glyphs_to_get--;
- fsdata->encoding[minchar].bits = bits;
- }
- if (minchar++ == maxchar)
- {
- if (!--nranges) break;
- minchar = (nextrange->min_char_high - pfi->firstRow) *
- (pfi->lastCol - pfi->firstCol + 1) +
- nextrange->min_char_low - pfi->firstCol;
- maxchar = (nextrange->max_char_high - pfi->firstRow) *
- (pfi->lastCol - pfi->firstCol + 1) +
- nextrange->max_char_low - pfi->firstCol;
- nextrange++;
- }
- off_adr += SIZEOF(fsOffset32);
- }
-
- xfree(ppbits);
- xfree(pbitmaps);
-
- if (blockrec->type == FS_OPEN_FONT)
- {
- fsd->glyphs_to_get = 0;
- bfont->state = FS_DONE_REPLY;
- }
- err = Successful;
-
-bail:
- if (blockrec->type == FS_LOAD_GLYPHS)
- {
- bglyph->done = TRUE;
- bglyph->errcode = err;
- }
-
- return err;
-}
-
-
-
-static int
-fs_send_load_glyphs(client, pfont, nranges, ranges)
- pointer client;
- FontPtr pfont;
- int nranges;
- fsRange *ranges;
-{
- FSBlockedGlyphPtr blockedglyph;
- fsQueryXBitmaps16Req req;
- FSFontDataPtr fsd = (FSFontDataPtr) (pfont->fpePrivate);
- FontPathElementPtr fpe = fsd->fpe;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- FSBlockDataPtr blockrec;
-
- /* make a new block record, and add it to the end of the list */
- blockrec = fs_new_block_rec(fpe, client, FS_LOAD_GLYPHS);
- if (!blockrec)
- return AllocError;
- blockedglyph = (FSBlockedGlyphPtr) blockrec->data;
- blockedglyph->pfont = pfont;
- blockedglyph->num_expected_ranges = nranges;
- /* Assumption: it's our job to free ranges */
- blockedglyph->expected_ranges = ranges;
- blockedglyph->done = FALSE;
- blockedglyph->clients_depending = (FSClientsDependingPtr)0;
-
- blockrec->sequence_number = conn->current_seq;
-
- /* send the request */
- req.reqType = FS_QueryXBitmaps16;
- req.fid = ((FSFontDataPtr) pfont->fpePrivate)->fontid;
- req.format = pfont->format;
- if (pfont->info.terminalFont)
- req.format = req.format & ~(BitmapFormatImageRectMask) |
- BitmapFormatImageRectMax;
- req.range = TRUE;
- /* each range takes up 4 bytes */
- req.length = (SIZEOF(fsQueryXBitmaps16Req) >> 2) + nranges;
- req.num_ranges = nranges * 2; /* protocol wants count of fsChar2bs */
- _fs_add_req_log(conn, FS_QueryXBitmaps16);
- _fs_write(conn, (char *) &req, SIZEOF(fsQueryXBitmaps16Req));
-
- /* Send ranges to the server... pack into a char array by hand
- to avoid structure-packing portability problems and to
- handle swapping for version1 protocol */
- if (nranges)
- {
-#define RANGE_BUFFER_SIZE 64
-#define RANGE_BUFFER_SIZE_MASK 63
- int i;
- char range_buffer[RANGE_BUFFER_SIZE * 4];
- char *range_buffer_p;
-
- range_buffer_p = range_buffer;
- for (i = 0; i < nranges;)
- {
- if (conn->fsMajorVersion > 1)
- {
- *range_buffer_p++ = ranges[i].min_char_high;
- *range_buffer_p++ = ranges[i].min_char_low;
- *range_buffer_p++ = ranges[i].max_char_high;
- *range_buffer_p++ = ranges[i].max_char_low;
- }
- else
- {
- *range_buffer_p++ = ranges[i].min_char_low;
- *range_buffer_p++ = ranges[i].min_char_high;
- *range_buffer_p++ = ranges[i].max_char_low;
- *range_buffer_p++ = ranges[i].max_char_high;
- }
-
- if (!(++i & RANGE_BUFFER_SIZE_MASK))
- {
- _fs_write(conn, range_buffer, RANGE_BUFFER_SIZE * 4);
- range_buffer_p = range_buffer;
- }
- }
- if (i &= RANGE_BUFFER_SIZE_MASK)
- _fs_write(conn, range_buffer, i * 4);
- }
-
- return Suspended;
-}
-
-
-int
-fs_load_all_glyphs(pfont)
- FontPtr pfont;
-{
- extern pointer serverClient; /* This could be any number that
- doesn't conflict with existing
- client values. */
- int err;
- FSFpePtr conn = (FSFpePtr) pfont->fpe->private;
-
- /*
- * The purpose of this procedure is to load all glyphs in the event
- * that we're dealing with someone who doesn't understand the finer
- * points of glyph caching... it is called from _fs_get_glyphs() if
- * the latter is called to get glyphs that have not yet been loaded.
- * We assume that the caller will not know how to handle a return
- * value of Suspended (usually the case for a GetGlyphs() caller),
- * so this procedure hangs around, freezing the server, for the
- * request to complete. This is an unpleasant kluge called to
- * perform an unpleasant job that, we hope, will never be required.
- */
-
- while ((err = _fs_load_glyphs(serverClient, pfont, TRUE, 0, 0, NULL)) ==
- Suspended)
- {
- fd_set TempSelectMask;
- if (_fs_wait_for_readable(conn) == -1)
- {
- /* We lost our connection. Don't wait to reestablish it;
- just give up. */
- _fs_connection_died(conn);
-
- /* Get rid of blockrec */
- fs_client_died(serverClient, pfont->fpe);
-
- return BadCharRange; /* As good an error as any other */
- }
- FD_SET(conn->fs_fd, &TempSelectMask);
- fs_wakeup(pfont->fpe, &TempSelectMask);
- }
-
- return err;
-}
-
-
-int
-_fs_load_glyphs(client, pfont, range_flag, nchars, item_size, data)
- pointer client;
- FontPtr pfont;
- Bool range_flag;
- unsigned int nchars;
- int item_size;
- unsigned char *data;
-{
-
- int nranges = 0;
- fsRange *ranges = NULL;
- int res;
- FSBlockDataPtr blockrec;
- FSBlockedGlyphPtr blockedglyph;
- FSFpePtr conn = (FSFpePtr) pfont->fpe->private;
- FSClientsDependingPtr *clients_depending = NULL;
-
- /* see if the result is already there */
-
- blockrec = (FSBlockDataPtr) conn->blocked_requests;
- while (blockrec) {
- if (blockrec->type == FS_LOAD_GLYPHS)
- {
- blockedglyph = (FSBlockedGlyphPtr) blockrec->data;
- if (blockedglyph->pfont == pfont)
- {
- if (blockrec->client == client)
- {
- if (blockedglyph->done)
- {
- int errcode = blockedglyph->errcode;
- signal_clients_depending(&blockedglyph->
- clients_depending);
- _fs_remove_block_rec(conn, blockrec);
- return errcode;
- }
- else return Suspended;
- }
- /* We've found an existing LoadGlyphs blockrec for this
- font but for another client. Rather than build a
- blockrec for it now (which entails some complex
- maintenance), we'll add it to a queue of clients to
- be signalled when the existing LoadGlyphs is
- completed. */
- clients_depending = &blockedglyph->clients_depending;
- break;
- }
- }
- else if (blockrec->type == FS_OPEN_FONT)
- {
- FSBlockedFontPtr bfont;
- bfont = (FSBlockedFontPtr) blockrec->data;
- if (bfont->pfont == pfont)
- {
- if (blockrec->client == client)
- {
- if (bfont->state == FS_DONE_REPLY)
- {
- int errcode = bfont->errcode;
- signal_clients_depending(&bfont->clients_depending);
- _fs_remove_block_rec(conn, blockrec);
- if (errcode == Successful) break;
- else return errcode;
- }
- else return Suspended;
- }
- /* We've found an existing OpenFont blockrec for this
- font but for another client. Rather than build a
- blockrec for it now (which entails some complex
- maintenance), we'll add it to a queue of clients to
- be signalled when the existing OpenFont is
- completed. */
- if (bfont->state != FS_DONE_REPLY)
- {
- clients_depending = &bfont->clients_depending;
- break;
- }
- }
- }
-
- blockrec = blockrec->next;
- }
-
- /*
- * see if the desired glyphs already exist, and return Successful if they
- * do, otherwise build up character range/character string
- */
- res = fs_build_range(pfont, range_flag, nchars, item_size, data,
- &nranges, &ranges);
-
- switch (res)
- {
- case AccessDone:
- return Successful;
-
- case Successful:
- break;
-
- default:
- return res;
- }
-
- /*
- * If clients_depending is not null, this request must wait for
- * some prior request(s) to complete.
- */
- if (clients_depending)
- {
- /* Since we're not ready to send the load_glyphs request yet,
- clean up the damage (if any) caused by the fs_build_range()
- call. */
- if (nranges)
- {
- _fs_clean_aborted_loadglyphs(pfont, nranges, ranges);
- xfree(ranges);
- }
- return add_clients_depending(clients_depending, client);
- }
-
- /*
- * If fsd->generation != conn->generation, the font has been closed
- * due to a lost connection. We will reopen it, which will result
- * in one of three things happening:
- * 1) The open will succeed and obtain the same font. Life
- * is wonderful.
- * 2) The open will fail. There is code above to recognize this
- * and flunk the LoadGlyphs request. The client might not be
- * thrilled.
- * 3) Worst case: the open will succeed but the font we open will
- * be different. The fs_read_query_info() procedure attempts
- * to detect this by comparing the existing metrics and
- * properties against those of the reopened font... if they
- * don't match, we flunk the reopen, which eventually results
- * in flunking the LoadGlyphs request. We could go a step
- * further and compare the extents, but this should be
- * sufficient.
- */
- if (((FSFontDataPtr)pfont->fpePrivate)->generation != conn->generation)
- {
- /* Since we're not ready to send the load_glyphs request yet,
- clean up the damage caused by the fs_build_range() call. */
- _fs_clean_aborted_loadglyphs(pfont, nranges, ranges);
- xfree(ranges);
-
- /* Now try to reopen the font. */
- return fs_send_open_font(client, (FontPathElementPtr)0,
- (Mask)FontReopen, (char *)0, 0,
- (fsBitmapFormat)0, (fsBitmapFormatMask)0,
- (XID)0, &pfont);
- }
-
- return fs_send_load_glyphs(client, pfont, nranges, ranges);
-}
-
-
-
-static int
-fs_read_list(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedListPtr blist = (FSBlockedListPtr) blockrec->data;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsListFontsReply rep;
- char *data,
- *dp;
- int length,
- i;
-
- blist->done = TRUE;
-
- /* read reply header */
- memcpy(&rep, &blockrec->header, SIZEOF(fsGenericReply));
- if (rep.type == FS_Error) {
-/* XXX -- translate FS error */
- _fs_eat_rest_of_error(conn, (fsError *) & rep);
- return AllocError;
- }
- if (_fs_read(conn, (char *) &rep + SIZEOF(fsGenericReply),
- SIZEOF(fsListFontsReply) - SIZEOF(fsGenericReply)) == -1) {
- /* nothing to free (i think) */
- return StillWorking;
- }
- length = (rep.length << 2) - SIZEOF(fsListFontsReply);
- data = (char *) xalloc(length);
- if (!data) {
- _fs_drain_bytes_pad(conn, length);
- return AllocError;
- }
- /* read the list */
- if (_fs_read_pad(conn, data, length) == -1) {
- /* nothing to free (i think) */
- return StillWorking;
- }
- /* copy data into FontPathRecord */
- dp = data;
- for (i = 0; i < rep.nFonts; i++) {
- length = *(unsigned char *)dp++;
- if (AddFontNamesName(blist->names, dp, length) != Successful) {
- blist->errcode = AllocError;
- break;
- }
- dp += length;
- }
-
- xfree(data);
- return Successful;
-}
-
-static int
-fs_send_list_fonts(client, fpe, pattern, patlen, maxnames, newnames)
- pointer client;
- FontPathElementPtr fpe;
- char *pattern;
- int patlen;
- int maxnames;
- FontNamesPtr newnames;
-{
- FSBlockDataPtr blockrec;
- FSBlockedListPtr blockedlist;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsListFontsReq req;
-
- _fs_client_access (conn, client, FALSE);
- _fs_client_resolution(conn);
-
- /* make a new block record, and add it to the end of the list */
- blockrec = fs_new_block_rec(fpe, client, FS_LIST_FONTS);
- if (!blockrec)
- return AllocError;
- blockedlist = (FSBlockedListPtr) blockrec->data;
- blockedlist->patlen = patlen;
- blockedlist->errcode = Successful;
- blockedlist->names = newnames;
- blockedlist->done = FALSE;
-
- /* send the request */
- req.reqType = FS_ListFonts;
- req.maxNames = maxnames;
- req.nbytes = patlen;
- req.length = (SIZEOF(fsListFontsReq) + patlen + 3) >> 2;
- _fs_add_req_log(conn, FS_ListFonts);
- _fs_write(conn, (char *) &req, SIZEOF(fsListFontsReq));
- _fs_write_pad(conn, (char *) pattern, patlen);
-
-#ifdef NCD
- if (configData.ExtendedFontDiags) {
- char buf[256];
-
- memcpy(buf, pattern, MIN(256, patlen));
- buf[MIN(256, patlen)] = '\0';
- printf("Listing fonts on pattern \"%s\" from font server \"%s\"\n",
- buf, fpe->name);
- }
-#endif
-
- return Suspended;
-}
-
-static int
-fs_list_fonts(client, fpe, pattern, patlen, maxnames, newnames)
- pointer client;
- FontPathElementPtr fpe;
- char *pattern;
- int patlen;
- int maxnames;
- FontNamesPtr newnames;
-{
- FSBlockDataPtr blockrec;
- FSBlockedListPtr blockedlist;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- int err;
-
- /* see if the result is already there */
- blockrec = (FSBlockDataPtr) conn->blocked_requests;
- while (blockrec) {
- if (blockrec->type == FS_LIST_FONTS && blockrec->client == client) {
- blockedlist = (FSBlockedListPtr) blockrec->data;
- if (blockedlist->patlen == patlen && blockedlist->done) {
- err = blockedlist->errcode;
- _fs_remove_block_rec(conn, blockrec);
- return err;
- }
- }
- blockrec = blockrec->next;
- }
-
- /* didn't find waiting record, so send a new one */
- return fs_send_list_fonts(client, fpe, pattern, patlen, maxnames, newnames);
-}
-
-static int padlength[4] = {0, 3, 2, 1};
-
-static int
-fs_read_list_info(fpe, blockrec)
- FontPathElementPtr fpe;
- FSBlockDataPtr blockrec;
-{
- FSBlockedListInfoPtr binfo = (FSBlockedListInfoPtr) blockrec->data;
- fsListFontsWithXInfoReply rep;
- FSFpePtr conn = (FSFpePtr) fpe->private;
- fsPropInfo pi;
- fsPropOffset *po;
- char *name;
- pointer pd;
- int err;
-
- /* clean up anything from the last trip */
- if (binfo->name)
- {
- xfree(binfo->name);
- binfo->name = NULL;
- }
- if (binfo->pfi) {
- xfree(binfo->pfi->isStringProp);
- xfree(binfo->pfi->props);
- xfree(binfo->pfi);
- binfo->pfi = NULL;
- }
- /* get reply header */
- memcpy(&rep, &blockrec->header, SIZEOF(fsGenericReply));
- if (rep.type == FS_Error) {
-/* XXX -- translate FS error */
- _fs_eat_rest_of_error(conn, (fsError *) & rep);
- binfo->errcode = AllocError;
- return AllocError;
- }
- if (conn->fsMajorVersion > 1)
- if (rep.nameLength == 0)
- goto done;
- /* old protocol sent a full-length reply even for the last one */
- if (_fs_read(conn, (char *) &rep + SIZEOF(fsGenericReply),
- SIZEOF(fsListFontsWithXInfoReply) - SIZEOF(fsGenericReply)) == -1) {
- goto done;
- }
- if (rep.nameLength == 0)
- goto done;
-
- /* read the data */
- name = (char *) xalloc(rep.nameLength);
- binfo->pfi = (FontInfoPtr) xalloc(sizeof(FontInfoRec));
- if (!name || !binfo->pfi) {
- xfree(name);
- xfree(binfo->pfi);
- binfo->pfi = NULL;
- _fs_drain_bytes(conn,
- rep.length - (SIZEOF(fsListFontsWithXInfoReply) -
- SIZEOF(fsGenericReply)));
- binfo->errcode = AllocError;
- return AllocError;
- }
- if (conn->fsMajorVersion == 1)
- if (_fs_read_pad(conn, name, rep.nameLength) == -1)
- goto done;
- if (_fs_read_pad(conn, (char *) &pi, SIZEOF(fsPropInfo)) == -1)
- goto done;
-
- po = (fsPropOffset *) xalloc(SIZEOF(fsPropOffset) * pi.num_offsets);
- pd = (pointer) xalloc(pi.data_len);
- if (!po || !pd) {
- xfree(name);
- xfree(po);
- xfree(pd);
- xfree (binfo->pfi);
- binfo->pfi = NULL;
- binfo->errcode = AllocError;
- return AllocError;
- }
- err = _fs_read_pad(conn, (char *) po,
- (pi.num_offsets * SIZEOF(fsPropOffset)));
- if (err != -1)
- {
- if (conn->fsMajorVersion > 1)
- err = _fs_read(conn, (char *) pd, pi.data_len);
- else
- err = _fs_read_pad(conn, (char *) pd, pi.data_len);
- }
- if (err != -1 && conn->fsMajorVersion != 1)
- {
- err = _fs_read(conn, name, rep.nameLength);
- if (err != -1)
- err = _fs_drain_bytes(conn, padlength[(pi.data_len+rep.nameLength)&3]);
- }
-
- if (err == -1) {
- xfree(name);
- xfree(po);
- xfree(pd);
- xfree (binfo->pfi);
- binfo->pfi = NULL;
- goto done;
- }
-
- if (_fs_convert_lfwi_reply(conn, binfo->pfi, &rep, &pi, po, pd) != Successful)
- {
- xfree(name);
- xfree(po);
- xfree(pd);
- xfree (binfo->pfi);
- binfo->pfi = NULL;
- goto done;
- }
- xfree(po);
- xfree(pd);
- binfo->name = name;
- binfo->namelen = rep.nameLength;
- binfo->remaining = rep.nReplies;
-
- binfo->status = FS_LFWI_REPLY;
- binfo->errcode = Suspended;
- /* disable this font server until we've processed this response */
- FD_CLR(conn->fs_fd, &_fs_fd_mask);
-
- return Successful;
-
-done:
- binfo->status = FS_LFWI_FINISHED;
- binfo->errcode = BadFontName;
- binfo->name = (char *) 0;
- return Successful;
-}
-
-/* ARGSUSED */
-static int
-fs_start_list_with_info(client, fpe, pattern, len, maxnames, pdata)
- pointer client;
- FontPathElementPtr fpe;
- char *pattern;
- int len;
- int maxnames;
- pointer *pdata;
-{
- FSBlockDataPtr blockrec;
- FSBlockedListInfoPtr blockedinfo;
- fsListFontsWithXInfoReq req;
- FSFpePtr conn = (FSFpePtr) fpe->private;
-
- _fs_client_access (conn, client, FALSE);
- _fs_client_resolution(conn);
-
- /* make a new block record, and add it to the end of the list */
- blockrec = fs_new_block_rec(fpe, client, FS_LIST_WITH_INFO);
- if (!blockrec)
- return AllocError;
- blockedinfo = (FSBlockedListInfoPtr) blockrec->data;
- bzero((char *) blockedinfo, sizeof(FSBlockedListInfoRec));
- blockedinfo->status = FS_LFWI_WAITING;
- blockedinfo->errcode = Suspended;
-
- /* send the request */
- req.reqType = FS_ListFontsWithXInfo;
- req.maxNames = maxnames;
- req.nbytes = len;
- req.length = (SIZEOF(fsListFontsWithXInfoReq) + len + 3) >> 2;
- _fs_add_req_log(conn, FS_ListFontsWithXInfo);
- (void) _fs_write(conn, (char *) &req, SIZEOF(fsListFontsWithXInfoReq));
- (void) _fs_write_pad(conn, pattern, len);
-
-#ifdef NCD
- if (configData.ExtendedFontDiags) {
- char buf[256];
-
- memcpy(buf, pattern, MIN(256, len));
- buf[MIN(256, len)] = '\0';
- printf("Listing fonts with info on pattern \"%s\" from font server \"%s\"\n",
- buf, fpe->name);
- }
-#endif
-
- return Successful;
-}
-
-/* ARGSUSED */
-static int
-fs_next_list_with_info(client, fpe, namep, namelenp, pFontInfo, numFonts,
- private)
- pointer client;
- FontPathElementPtr fpe;
- char **namep;
- int *namelenp;
- FontInfoPtr *pFontInfo;
- int *numFonts;
- pointer private;
-{
- FSBlockDataPtr blockrec;
- FSBlockedListInfoPtr blockedinfo;
- FSFpePtr conn = (FSFpePtr) fpe->private;
-
- /* see if the result is already there */
- blockrec = (FSBlockDataPtr) conn->blocked_requests;
- while (blockrec) {
- if (blockrec->type == FS_LIST_WITH_INFO &&
- blockrec->client == client) {
- blockedinfo = (FSBlockedListInfoPtr) blockrec->data;
- break;
- }
- blockrec = blockrec->next;
- }
-
- if (!blockrec)
- {
- /* The only good reason for not finding a blockrec would be if
- disconnect/reconnect to the font server wiped it out and the
- code that called us didn't do the right thing to create
- another one. Under those circumstances, we need to return an
- error to prevent that code from attempting to interpret the
- information we don't return. */
- return BadFontName;
- }
-
- if (blockedinfo->status == FS_LFWI_WAITING)
- return Suspended;
-
- *namep = blockedinfo->name;
- *namelenp = blockedinfo->namelen;
- *pFontInfo = blockedinfo->pfi;
- *numFonts = blockedinfo->remaining;
- FD_SET(conn->fs_fd, &_fs_fd_mask);
- if (blockedinfo->status == FS_LFWI_FINISHED) {
- int err = blockedinfo->errcode;
-
- _fs_remove_block_rec(conn, blockrec);
- return err;
- }
- if (blockedinfo->status == FS_LFWI_REPLY) {
- blockedinfo->status = FS_LFWI_WAITING;
- return Successful;
- } else {
- return blockedinfo->errcode;
- }
-}
-
-/*
- * Called when client exits
- */
-
-static void
-fs_client_died(client, fpe)
- pointer client;
- FontPathElementPtr fpe;
-{
- FSFpePtr conn = (FSFpePtr) fpe->private;
- FSBlockDataPtr blockrec,
- depending;
- FSClientPtr *prev, cur;
- fsFreeACReq freeac;
-
- for (prev = &conn->clients; cur = *prev; prev = &cur->next)
- {
- if (cur->client == client) {
- freeac.reqType = FS_FreeAC;
- freeac.id = cur->acid;
- freeac.length = sizeof (fsFreeACReq) >> 2;
- _fs_add_req_log(conn, FS_FreeAC);
- _fs_write (conn, (char *) &freeac, sizeof (fsFreeACReq));
- *prev = cur->next;
- xfree (cur);
- break;
- }
- }
- /* see if the result is already there */
- blockrec = (FSBlockDataPtr) conn->blocked_requests;
- while (blockrec) {
- if (blockrec->client == client)
- break;
- blockrec = blockrec->next;
- }
- if (!blockrec)
- return;
- if (blockrec->type == FS_LIST_WITH_INFO)
- {
- FSBlockedListInfoPtr binfo;
- binfo = (FSBlockedListInfoPtr) blockrec->data;
- if (binfo->status == FS_LFWI_REPLY)
- FD_SET(conn->fs_fd, &_fs_fd_mask);
- if (binfo->name)
- {
- xfree(binfo->name);
- binfo->name = NULL;
- }
- if (binfo->pfi)
- {
- xfree(binfo->pfi->isStringProp);
- xfree(binfo->pfi->props);
- xfree(binfo->pfi);
- binfo->pfi = NULL;
- }
- }
- /* replace the client pointers in this block rec with the chained one */
- if (depending = blockrec->depending) {
- blockrec->client = depending->client;
- blockrec->depending = depending->depending;
- blockrec = depending;
- }
- fs_abort_blockrec(conn, blockrec);
-}
-
-static void
-_fs_client_access (conn, client, sync)
- FSFpePtr conn;
- pointer client;
- Bool sync;
-{
- FSClientPtr *prev, cur;
- fsCreateACReq crac;
- fsSetAuthorizationReq setac;
- fsGenericReply rep;
- char *authorizations;
- int authlen;
- Bool new_cur = FALSE;
-
- for (prev = &conn->clients; cur = *prev; prev = &cur->next)
- {
- if (cur->client == client)
- {
- if (prev != &conn->clients)
- {
- *prev = cur->next;
- cur->next = conn->clients;
- conn->clients = cur;
- }
- break;
- }
- }
- if (!cur)
- {
- cur = (FSClientPtr) xalloc (sizeof (FSClientRec));
- if (!cur)
- return;
- cur->client = client;
- cur->next = conn->clients;
- conn->clients = cur;
- cur->acid = GetNewFontClientID ();
- new_cur = TRUE;
- }
- if (new_cur || cur->auth_generation != client_auth_generation(client))
- {
- if (!new_cur)
- {
- fsFreeACReq freeac;
- freeac.reqType = FS_FreeAC;
- freeac.id = cur->acid;
- freeac.length = sizeof (fsFreeACReq) >> 2;
- _fs_add_req_log(conn, FS_FreeAC);
- _fs_write (conn, (char *) &freeac, sizeof (fsFreeACReq));
- }
- crac.reqType = FS_CreateAC;
- crac.num_auths = set_font_authorizations(&authorizations, &authlen,
- client);
- authlen = crac.num_auths ? (authlen + 3) & ~0x3 : 0;
- crac.length = (sizeof (fsCreateACReq) + authlen) >> 2;
- crac.acid = cur->acid;
- _fs_add_req_log(conn, FS_CreateAC);
- _fs_write(conn, (char *) &crac, sizeof (fsCreateACReq));
- _fs_write(conn, authorizations, authlen);
- /* if we're synchronous, open_font will be confused by
- * the reply; eat it and continue
- */
- if (sync)
- {
- if (_fs_read(conn, (char *) &rep, sizeof (fsGenericReply)) == -1)
- return;
- fs_handle_unexpected(conn, &rep);
- }
- /* ignore reply; we don't even care about it */
- conn->curacid = 0;
- cur->auth_generation = client_auth_generation(client);
- }
- if (conn->curacid != cur->acid)
- {
- setac.reqType = FS_SetAuthorization;
- setac.length = sizeof (fsSetAuthorizationReq) >> 2;
- setac.id = cur->acid;
- _fs_add_req_log(conn, FS_SetAuthorization);
- _fs_write(conn, (char *) &setac, sizeof (fsSetAuthorizationReq));
- conn->curacid = cur->acid;
- }
-}
-
-/*
- * called at server init time
- */
-
-void
-fs_register_fpe_functions()
-{
- fs_font_type = RegisterFPEFunctions(fs_name_check,
- fs_init_fpe,
- fs_free_fpe,
- fs_reset_fpe,
- fs_open_font,
- fs_close_font,
- fs_list_fonts,
- fs_start_list_with_info,
- fs_next_list_with_info,
- fs_wakeup,
- fs_client_died,
- _fs_load_glyphs,
- (int (*))0,
- (int (*))0,
- (void (*))0);
-}
-
-static int
-check_fs_open_font(client, fpe, flags, name, namelen, format, fmask, id, ppfont,
- alias, non_cachable_font)
- pointer client;
- FontPathElementPtr fpe;
- Mask flags;
- char *name;
- fsBitmapFormat format;
- fsBitmapFormatMask fmask;
- int namelen;
- XID id;
- FontPtr *ppfont;
- char **alias;
- FontPtr non_cachable_font; /* Not used in this FPE */
-{
- if (XpClientIsBitmapClient(client))
- return (fs_open_font(client, fpe, flags, name, namelen, format,
- fmask, id, ppfont, alias, non_cachable_font) );
- return BadFontName;
-}
-
-static int
-check_fs_list_fonts(client, fpe, pattern, patlen, maxnames, newnames)
- pointer client;
- FontPathElementPtr fpe;
- char *pattern;
- int patlen;
- int maxnames;
- FontNamesPtr newnames;
-{
- if (XpClientIsBitmapClient(client))
- return (fs_list_fonts(client, fpe, pattern, patlen, maxnames,
- newnames));
- return BadFontName;
-}
-
-static int
-check_fs_start_list_with_info(client, fpe, pattern, len, maxnames, pdata)
- pointer client;
- FontPathElementPtr fpe;
- char *pattern;
- int len;
- int maxnames;
- pointer *pdata;
-{
- if (XpClientIsBitmapClient(client))
- return (fs_start_list_with_info(client, fpe, pattern, len, maxnames,
- pdata));
- return BadFontName;
-}
-
-static int
-check_fs_next_list_with_info(client, fpe, namep, namelenp, pFontInfo, numFonts,
- private)
- pointer client;
- FontPathElementPtr fpe;
- char **namep;
- int *namelenp;
- FontInfoPtr *pFontInfo;
- int *numFonts;
- pointer private;
-{
- if (XpClientIsBitmapClient(client))
- return (fs_next_list_with_info(client, fpe, namep, namelenp, pFontInfo,
- numFonts,private));
- return BadFontName;
-}
-
-void
-check_fs_register_fpe_functions()
-{
- fs_font_type = RegisterFPEFunctions(fs_name_check,
- fs_init_fpe,
- fs_free_fpe,
- fs_reset_fpe,
- check_fs_open_font,
- fs_close_font,
- check_fs_list_fonts,
- check_fs_start_list_with_info,
- check_fs_next_list_with_info,
- fs_wakeup,
- fs_client_died,
- _fs_load_glyphs,
- (int (*))0,
- (int (*))0,
- (void (*))0);
-}
projects / rdpsrv / blobdiff