498 lines
17 KiB
C
498 lines
17 KiB
C
/*
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* Copyright 2002-2003 Red Hat Inc., Durham, North Carolina.
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation on the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/*
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* Authors:
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* Rickard E. (Rik) Faith <faith@redhat.com>
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*
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*/
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/** \file
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* Provides interface for reading DMX configuration files and for
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* combining that information with command-line configuration parameters. */
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#ifdef HAVE_DMX_CONFIG_H
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#include <dmx-config.h>
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#endif
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#include "dmx.h"
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#include "dmxinput.h"
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#include "dmxconfig.h"
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#include "dmxparse.h"
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#include "dmxlog.h"
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#include "dmxcb.h"
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#include "dmxstat.h"
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#include "parser.h"
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extern int yyparse(void);
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extern FILE *yyin;
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static char *dmxXkbRules;
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static char *dmxXkbModel;
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static char *dmxXkbLayout;
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static char *dmxXkbVariant;
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static char *dmxXkbOptions;
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/** Stores lists of configuration information. */
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typedef struct DMXConfigListStruct {
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const char *name;
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struct DMXConfigListStruct *next;
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} DMXConfigList, *DMXConfigListPtr;
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/** This stucture stores the parsed configuration information. */
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typedef struct DMXConfigCmdStruct {
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const char *filename;
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const char *config;
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DMXConfigList *displays;
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DMXConfigList *inputs;
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DMXConfigList *xinputs;
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} DMXConfigCmd, *DMXConfigCmdPtr;
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DMXConfigEntryPtr dmxConfigEntry;
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static DMXConfigCmd dmxConfigCmd;
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static int dmxDisplaysFromCommandLine;
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/** Make a note that \a display is the name of an X11 display that
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* should be initialized as a backend (output) display. Called from
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* #ddxProcessArgument. */
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void dmxConfigStoreDisplay(const char *display)
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{
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DMXConfigListPtr entry = malloc(sizeof(*entry));
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entry->name = strdup(display);
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entry->next = NULL;
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if (!dmxConfigCmd.displays) dmxConfigCmd.displays = entry;
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else {
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DMXConfigList *pt;
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for (pt = dmxConfigCmd.displays; pt->next; pt = pt->next);
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if (!pt)
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dmxLog(dmxFatal, "dmxConfigStoreDisplay: end of list non-NULL\n");
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pt->next = entry;
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}
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++dmxDisplaysFromCommandLine;
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}
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/** Make a note that \a input is the name of an X11 display that should
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* be used for input (either a backend or a console input device). */
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void dmxConfigStoreInput(const char *input)
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{
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DMXConfigListPtr entry = malloc(sizeof(*entry));
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entry->name = strdup(input);
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entry->next = NULL;
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if (!dmxConfigCmd.inputs) dmxConfigCmd.inputs = entry;
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else {
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DMXConfigList *pt;
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for (pt = dmxConfigCmd.inputs; pt->next; pt = pt->next);
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if (!pt)
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dmxLog(dmxFatal, "dmxConfigStoreInput: end of list non-NULL\n");
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pt->next = entry;
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}
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}
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/** Make a note that \a input is the name of an X11 display that should
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* be used for input from XInput extension devices. */
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void dmxConfigStoreXInput(const char *input)
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{
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DMXConfigListPtr entry = malloc(sizeof(*entry));
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entry->name = strdup(input);
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entry->next = NULL;
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if (!dmxConfigCmd.xinputs) dmxConfigCmd.xinputs = entry;
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else {
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DMXConfigList *pt;
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for (pt = dmxConfigCmd.xinputs; pt->next; pt = pt->next);
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if (!pt)
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dmxLog(dmxFatal, "dmxConfigStoreXInput: end of list non-NULL\n");
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pt->next = entry;
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}
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}
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/** Make a note that \a file is the configuration file. */
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void dmxConfigStoreFile(const char *file)
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{
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if (dmxConfigCmd.filename)
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dmxLog(dmxFatal, "Only one -configfile allowed\n");
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dmxConfigCmd.filename = strdup(file);
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}
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/** Make a note that \a config should be used as the configuration for
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* current instantiation of the DMX server. */
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void dmxConfigStoreConfig(const char *config)
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{
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if (dmxConfigCmd.config) dmxLog(dmxFatal, "Only one -config allowed\n");
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dmxConfigCmd.config = strdup(config);
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}
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static int dmxConfigReadFile(const char *filename, int debug)
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{
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FILE *str;
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if (!(str = fopen(filename, "r"))) return -1;
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dmxLog(dmxInfo, "Reading configuration file \"%s\"\n", filename);
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yyin = str;
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yydebug = debug;
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yyparse();
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fclose(str);
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return 0;
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}
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static const char *dmxConfigMatch(const char *target, DMXConfigEntryPtr entry)
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{
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DMXConfigVirtualPtr v = entry->virtual;
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const char *name = NULL;
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if (v && v->name) name = v->name;
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if (v && !dmxConfigCmd.config) return v->name ? v->name : "<noname>";
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if (!name) return NULL;
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if (!strcmp(name, target)) return name;
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return NULL;
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}
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static DMXScreenInfo *dmxConfigAddDisplay(const char *name,
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int scrnWidth, int scrnHeight,
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int scrnX, int scrnY,
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int scrnXSign, int scrnYSign,
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int rootWidth, int rootHeight,
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int rootX, int rootY,
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int rootXSign, int rootYSign)
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{
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DMXScreenInfo *dmxScreen;
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if (!(dmxScreens = realloc(dmxScreens,
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(dmxNumScreens+1) * sizeof(*dmxScreens))))
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dmxLog(dmxFatal,
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"dmxConfigAddDisplay: realloc failed for screen %d (%s)\n",
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dmxNumScreens, name);
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dmxScreen = &dmxScreens[dmxNumScreens];
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memset(dmxScreen, 0, sizeof(*dmxScreen));
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dmxScreen->name = name;
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dmxScreen->index = dmxNumScreens;
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dmxScreen->scrnWidth = scrnWidth;
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dmxScreen->scrnHeight = scrnHeight;
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dmxScreen->scrnX = scrnX;
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dmxScreen->scrnY = scrnY;
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dmxScreen->scrnXSign = scrnXSign;
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dmxScreen->scrnYSign = scrnYSign;
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dmxScreen->rootWidth = rootWidth;
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dmxScreen->rootHeight = rootHeight;
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dmxScreen->rootX = rootX;
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dmxScreen->rootY = rootY;
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dmxScreen->stat = dmxStatAlloc();
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++dmxNumScreens;
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return dmxScreen;
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}
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DMXInputInfo *dmxConfigAddInput(const char *name, int core)
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{
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DMXInputInfo *dmxInput;
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if (!(dmxInputs = realloc(dmxInputs,
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(dmxNumInputs+1) * sizeof(*dmxInputs))))
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dmxLog(dmxFatal,
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"dmxConfigAddInput: realloc failed for input %d (%s)\n",
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dmxNumInputs, name);
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dmxInput = &dmxInputs[dmxNumInputs];
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memset(dmxInput, 0, sizeof(*dmxInput));
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dmxInput->name = name;
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dmxInput->inputIdx = dmxNumInputs;
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dmxInput->scrnIdx = -1;
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dmxInput->core = core;
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++dmxNumInputs;
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return dmxInput;
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}
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static void dmxConfigCopyFromDisplay(DMXConfigDisplayPtr d)
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{
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DMXScreenInfo *dmxScreen;
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dmxScreen = dmxConfigAddDisplay(d->name,
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d->scrnWidth, d->scrnHeight,
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d->scrnX, d->scrnY,
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d->scrnXSign, d->scrnYSign,
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d->rootWidth, d->rootHeight,
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d->rootX, d->rootY,
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d->rootXSign, d->rootXSign);
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dmxScreen->where = PosAbsolute;
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dmxScreen->whereX = d->rootXOrigin;
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dmxScreen->whereY = d->rootYOrigin;
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}
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static void dmxConfigCopyFromWall(DMXConfigWallPtr w)
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{
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DMXConfigStringPtr pt;
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DMXScreenInfo *dmxScreen;
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int edge = dmxNumScreens;
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int last = dmxNumScreens;
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if (!w->xwall && !w->ywall) { /* Try to make it square */
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int count;
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for (pt = w->nameList, count = 0; pt; pt = pt->next) ++count;
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w->xwall = sqrt(count) + .5;
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}
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for (pt = w->nameList; pt; pt = pt->next) {
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dmxScreen = dmxConfigAddDisplay(pt->string, w->width, w->height,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
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if (pt == w->nameList) { /* Upper left */
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dmxScreen->where = PosAbsolute;
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dmxScreen->whereX = 0;
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dmxScreen->whereY = 0;
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} else if (w->xwall) { /* Tile left to right, then top to bottom */
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if (!((dmxNumScreens-1) % w->xwall)) {
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dmxScreen->where = PosBelow;
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dmxScreen->whereRefScreen = edge;
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edge = dmxNumScreens-1;
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} else {
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dmxScreen->where = PosRightOf;
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dmxScreen->whereRefScreen = last;
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}
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} else { /* Tile top to bottom, then left to right */
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if (!((dmxNumScreens-1) % w->ywall)) {
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dmxScreen->where = PosRightOf;
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dmxScreen->whereRefScreen = edge;
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edge = dmxNumScreens-1;
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} else {
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dmxScreen->where = PosBelow;
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dmxScreen->whereRefScreen = last;
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}
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}
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last = dmxNumScreens-1;
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if (dmxScreen->where == PosAbsolute)
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dmxLog(dmxInfo, "Added %s at %d %d\n",
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pt->string, dmxScreen->whereX, dmxScreen->whereY);
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else
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dmxLog(dmxInfo, "Added %s %s %s\n",
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pt->string,
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dmxScreen->where == PosBelow ? "below" : "right of",
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dmxScreens[dmxScreen->whereRefScreen].name);
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}
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}
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static void dmxConfigCopyFromOption(DMXConfigOptionPtr o)
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{
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DMXConfigStringPtr pt;
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int argc = 0;
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char **argv = NULL;
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if (serverGeneration != 1) return; /* FIXME: only do once, for now */
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if (!o || !o->string) return;
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for (pt = o->option; pt; pt = pt->next) {
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if (pt->string) {
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++argc;
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argv = realloc(argv, (argc+1) * sizeof(*argv));
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argv[argc] = (char *)pt->string;
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}
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}
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argv[0] = NULL;
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ProcessCommandLine(argc+1, argv);
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free(argv);
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}
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static void dmxConfigCopyFromParam(DMXConfigParamPtr p)
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{
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const char **argv;
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int argc;
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if ((argv = dmxConfigLookupParam(p, "xkbrules", &argc)) && argc == 2) {
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dmxConfigSetXkbRules(argv[1]);
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} else if ((argv = dmxConfigLookupParam(p, "xkbmodel", &argc))
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&& argc == 2) {
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dmxConfigSetXkbModel(argv[1]);
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} else if ((argv = dmxConfigLookupParam(p, "xkblayout", &argc))
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&& argc == 2) {
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dmxConfigSetXkbLayout(argv[1]);
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} else if ((argv = dmxConfigLookupParam(p, "xkbvariant", &argc))
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&& argc == 2) {
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dmxConfigSetXkbVariant(argv[1]);
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} else if ((argv = dmxConfigLookupParam(p, "xkboptions", &argc))
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&& argc == 2) {
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dmxConfigSetXkbOptions(argv[1]);
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}
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}
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static void dmxConfigCopyData(DMXConfigVirtualPtr v)
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{
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DMXConfigSubPtr sub;
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if (v->dim) dmxSetWidthHeight(v->dim->x, v->dim->y);
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else dmxSetWidthHeight(0, 0);
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for (sub = v->subentry; sub; sub = sub->next) {
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switch (sub->type) {
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case dmxConfigDisplay: dmxConfigCopyFromDisplay(sub->display); break;
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case dmxConfigWall: dmxConfigCopyFromWall(sub->wall); break;
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case dmxConfigOption: dmxConfigCopyFromOption(sub->option); break;
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case dmxConfigParam: dmxConfigCopyFromParam(sub->param); break;
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default:
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dmxLog(dmxFatal,
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"dmxConfigCopyData: not a display, wall, or value\n");
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}
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}
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}
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static void dmxConfigFromCommandLine(void)
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{
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DMXConfigListPtr pt;
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dmxLog(dmxInfo, "Using configuration from command line\n");
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for (pt = dmxConfigCmd.displays; pt; pt = pt->next) {
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DMXScreenInfo *dmxScreen = dmxConfigAddDisplay(pt->name,
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0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0);
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if (dmxNumScreens == 1) {
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dmxScreen->where = PosAbsolute;
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dmxScreen->whereX = 0;
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dmxScreen->whereY = 0;
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dmxLog(dmxInfo, "Added %s at %d %d\n",
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dmxScreen->name, dmxScreen->whereX, dmxScreen->whereY);
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} else {
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dmxScreen->where = PosRightOf;
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dmxScreen->whereRefScreen = dmxNumScreens - 2;
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if (dmxScreen->whereRefScreen < 0) dmxScreen->whereRefScreen = 0;
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dmxLog(dmxInfo, "Added %s %s %s\n",
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dmxScreen->name,
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dmxScreen->where == PosBelow ? "below" : "right of",
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dmxScreens[dmxScreen->whereRefScreen].name);
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}
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}
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}
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static void dmxConfigFromConfigFile(void)
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{
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DMXConfigEntryPtr pt;
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const char *name;
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for (pt = dmxConfigEntry; pt; pt = pt->next) {
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/* FIXME -- if an input is specified, use it */
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if (pt->type != dmxConfigVirtual) continue;
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if ((name = dmxConfigMatch(dmxConfigCmd.config, pt))) {
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dmxLog(dmxInfo, "Using configuration \"%s\"\n", name);
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dmxConfigCopyData(pt->virtual);
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return;
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}
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}
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dmxLog(dmxFatal, "Could not find configuration \"%s\" in \"%s\"\n",
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dmxConfigCmd.config, dmxConfigCmd.filename);
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}
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static void dmxConfigConfigInputs(void)
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{
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DMXConfigListPtr pt;
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if (dmxNumInputs) return;
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if (dmxConfigCmd.inputs) { /* Use command line */
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for (pt = dmxConfigCmd.inputs; pt; pt = pt->next)
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dmxConfigAddInput(pt->name, TRUE);
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} else if (dmxNumScreens) { /* Use first display */
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dmxConfigAddInput(dmxScreens[0].name, TRUE);
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} else { /* Use dummy */
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dmxConfigAddInput("dummy", TRUE);
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}
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if (dmxConfigCmd.xinputs) { /* Non-core devices from command line */
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for (pt = dmxConfigCmd.xinputs; pt; pt = pt->next)
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dmxConfigAddInput(pt->name, FALSE);
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}
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}
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/** Set up the appropriate global variables so that the DMX server will
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* be initialized using the configuration specified in the config file
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* and on the command line. */
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void dmxConfigConfigure(void)
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{
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if (dmxConfigEntry) {
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dmxConfigFreeEntry(dmxConfigEntry);
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dmxConfigEntry = NULL;
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}
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if (dmxConfigCmd.filename) {
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if (dmxConfigCmd.displays)
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dmxLog(dmxWarning,
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"Using configuration file \"%s\" instead of command line\n",
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dmxConfigCmd.filename);
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dmxConfigReadFile(dmxConfigCmd.filename, 0);
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dmxConfigFromConfigFile();
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} else {
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if (dmxConfigCmd.config)
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dmxLog(dmxWarning,
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"Configuration name (%s) without configuration file\n",
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dmxConfigCmd.config);
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dmxConfigFromCommandLine();
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}
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dmxConfigConfigInputs();
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}
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/** This function determines the number of displays we WILL have and
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* sets MAXSCREENS to that value. This is difficult since the number
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* depends on the command line (which is easy to count) or on the config
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* file, which has to be parsed. */
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void dmxConfigSetMaxScreens(void)
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{
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static int processing = 0;
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if (processing) return; /* Prevent reentry via ProcessCommandLine */
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processing = 1;
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if (dmxConfigCmd.filename) {
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if (!dmxNumScreens)
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dmxConfigConfigure();
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#ifndef MAXSCREENS
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SetMaxScreens(dmxNumScreens);
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#endif
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} else
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#ifndef MAXSCREENS
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SetMaxScreens(dmxDisplaysFromCommandLine);
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#endif
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processing = 0;
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}
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/** This macro is used to generate the following access methods:
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* - dmxConfig{Set,Get}rules
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* - dmxConfig{Set,Get}model
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* - dmxConfig{Set,Get}layout
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* - dmxConfig{Set,Get}variant
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* - dmxConfig{Set,Get}options
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* These methods are used to read and write information about the keyboard. */
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#define GEN(param,glob,def) \
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void dmxConfigSet##glob(const char *param) { \
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if (dmx##glob) free((void *)dmx##glob); \
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dmx##glob = strdup(param); \
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} \
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char *dmxConfigGet##glob(void) { \
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return (char *)(dmx##glob ? dmx##glob : def); \
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}
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GEN(rules, XkbRules, XKB_DFLT_RULES)
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GEN(model, XkbModel, XKB_DFLT_MODEL)
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GEN(layout, XkbLayout, XKB_DFLT_LAYOUT)
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GEN(variant, XkbVariant, XKB_DFLT_VARIANT)
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GEN(options, XkbOptions, XKB_DFLT_OPTIONS)
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