447 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			447 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 * Copyright 2001 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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 * This file encapsulated all of the logging functions that are used by
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 * DMX for informational, warning, and error messages. */
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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 "dmxlog.h"
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#include "dmxinput.h"
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#include <X11/extensions/XI.h>
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#include <X11/extensions/XIproto.h>
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static dmxLogLevel dmxCurrentLogLevel = dmxDebug;
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/** Set the default level for logging to #dmxLogLevel.  Returns the
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 * previous log level. */
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dmxLogLevel
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dmxSetLogLevel(dmxLogLevel newLevel)
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{
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    dmxLogLevel oldLevel = dmxCurrentLogLevel;
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    if (newLevel > dmxFatal)
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        newLevel = dmxFatal;
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    dmxCurrentLogLevel = newLevel;
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    return oldLevel;
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}
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/** Returns the log level set by #dmxLogLevel. */
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dmxLogLevel
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dmxGetLogLevel(void)
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{
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    return dmxCurrentLogLevel;
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}
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#ifdef DMX_LOG_STANDALONE
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/* When using this file as part of a stand-alone (i.e., non-X-Server
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 * program, then the ultimate output routines have to be defined.  */
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/** Provide an ErrorF function when used stand-alone. */
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void
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ErrorF(const char *format, ...)
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{
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    va_list args;
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    va_start(args, format);
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    vfprintf(stderr, format, args);     /* RATS: We assume the format string
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                                         * is trusted, since it is always
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                                         * from a log message in our code. */
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    va_end(args);
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}
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/** Provide an VFatalError function when used stand-alone. */
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static void
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VFatalError(const char *format, va_list args) _X_ATTRIBUTE_PRINTF(1, 0) _X_NORETURN;
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static void
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VFatalError(const char *format, va_list args)
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{
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    vfprintf(stderr, format, args);     /* RATS: We assume the format string
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                                         * is trusted, since it is always
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                                         * from a log message in our code. */
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    exit(1);
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}
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/** Provide an VErrorF function when used stand-alone. */
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void
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VErrorF(const char *format, va_list args)
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{
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    vfprintf(stderr, format, args);     /* RATS: We assume the format string
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                                         * is trusted, since it is always
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                                         * from a log message in our code. */
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}
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#else
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/** This function was removed between XFree86 4.3.0 and XFree86 4.4.0. */
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extern void AbortServer(void) _X_NORETURN;
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static void
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VFatalError(const char *format, va_list args) _X_ATTRIBUTE_PRINTF(1, 0) _X_NORETURN;
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static void
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VFatalError(const char *format, va_list args)
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{
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    VErrorF(format, args);
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    ErrorF("\n");
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    AbortServer();
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 /*NOTREACHED*/}
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#endif
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/* Prints a consistent header for each line. */
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static void
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dmxHeader(dmxLogLevel logLevel, DMXInputInfo * dmxInput,
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          DMXScreenInfo * dmxScreen)
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{
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    const char *type = "??";
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    switch (logLevel) {
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    case dmxDebug:
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        type = "..";
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        break;
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    case dmxInfo:
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        type = "II";
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        break;
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    case dmxWarning:
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        type = "**";
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        break;
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    case dmxError:
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        type = "!!";
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        break;
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    case dmxFatal:
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        type = "Fatal Error";
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        break;
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    }
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    if (dmxInput && dmxScreen) {
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        ErrorF("(%s) dmx[i%d/%s;o%d/%s]: ", type,
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               dmxInput->inputIdx, dmxInput->name,
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               dmxScreen->index, dmxScreen->name);
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    }
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    else if (dmxScreen) {
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        ErrorF("(%s) dmx[o%d/%s]: ", type, dmxScreen->index, dmxScreen->name);
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    }
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    else if (dmxInput) {
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        const char *pt = strchr(dmxInput->name, ',');
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        int len = (pt ? (size_t) (pt - dmxInput->name)
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                   : strlen(dmxInput->name));
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        ErrorF("(%s) dmx[i%d/%*.*s]: ", type,
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               dmxInput->inputIdx, len, len, dmxInput->name);
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    }
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    else {
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        ErrorF("(%s) dmx: ", type);
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    }
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}
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/* Prints the error message with the appropriate low-level X output
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 * routine. */
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static void
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dmxMessage(dmxLogLevel logLevel, const char *format, va_list args) _X_ATTRIBUTE_PRINTF(2, 0);
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static void
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dmxMessage(dmxLogLevel logLevel, const char *format, va_list args)
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{
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    if (logLevel == dmxFatal || logLevel >= dmxCurrentLogLevel) {
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        if (logLevel == dmxFatal)
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            VFatalError(format, args);
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        else
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            VErrorF(format, args);
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    }
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}
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/** Log the specified message at the specified \a logLevel.  \a format
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 * can be a printf-like format expression. */
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void
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dmxLog(dmxLogLevel logLevel, const char *format, ...)
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{
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    va_list args;
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    dmxHeader(logLevel, NULL, NULL);
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    va_start(args, format);
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    dmxMessage(logLevel, format, args);
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    va_end(args);
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}
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/** Continue a log message without printing the message prefix. */
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void
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dmxLogCont(dmxLogLevel logLevel, const char *format, ...)
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{
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    va_list args;
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    va_start(args, format);
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    dmxMessage(logLevel, format, args);
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    va_end(args);
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}
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#ifndef DMX_LOG_STANDALONE
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/** Log an informational message (at level #dmxInfo) related to ouput.
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 * The message prefix will contain backend information from \a
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 * dmxScreen. */
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void
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dmxLogOutput(DMXScreenInfo * dmxScreen, const char *format, ...)
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{
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    va_list args;
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    dmxHeader(dmxInfo, NULL, dmxScreen);
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    va_start(args, format);
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    dmxMessage(dmxInfo, format, args);
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    va_end(args);
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}
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/** Continue a message related to output without printing the message
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 * prefix. */
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void
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dmxLogOutputCont(DMXScreenInfo * dmxScreen, const char *format, ...)
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{
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    va_list args;
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    va_start(args, format);
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    dmxMessage(dmxInfo, format, args);
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    va_end(args);
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}
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/** Log a warning message (at level #dmxWarning) related to output.
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 * The message prefix will contain backend information from \a
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 * dmxScreen. */
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void
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dmxLogOutputWarning(DMXScreenInfo * dmxScreen, const char *format, ...)
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{
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    va_list args;
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    dmxHeader(dmxWarning, NULL, dmxScreen);
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    va_start(args, format);
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    dmxMessage(dmxWarning, format, args);
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    va_end(args);
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}
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/** Log an informational message (at level #dmxInfo) related to input.
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 * The message prefix will contain information from \a dmxInput. */
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void
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dmxLogInput(DMXInputInfo * dmxInput, const char *format, ...)
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{
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    va_list args;
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    dmxHeader(dmxInfo, dmxInput, NULL);
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    va_start(args, format);
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    dmxMessage(dmxInfo, format, args);
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    va_end(args);
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}
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/** Continue a message related to input without printing the message
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 * prefix. */
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void
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dmxLogInputCont(DMXInputInfo * dmxInput, const char *format, ...)
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{
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    va_list args;
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    va_start(args, format);
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    dmxMessage(dmxInfo, format, args);
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    va_end(args);
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}
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/** Print \a argc messages, each describing an element in \a argv.  This
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 * is maingly for debugging purposes. */
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void
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dmxLogArgs(dmxLogLevel logLevel, int argc, char **argv)
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{
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    int i;
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    for (i = 0; i < argc; i++)
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        dmxLog(logLevel, "   Arg[%d] = \"%s\"\n", i, argv[i]);
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}
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/** Print messages at level #dmxInfo describing the visuals in \a vi. */
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void
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dmxLogVisual(DMXScreenInfo * dmxScreen, XVisualInfo * vi, int defaultVisual)
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{
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    const char *class = "Unknown";
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    switch (vi->class) {
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    case StaticGray:
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        class = "StaticGray ";
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        break;
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    case GrayScale:
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        class = "GrayScale  ";
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        break;
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    case StaticColor:
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        class = "StaticColor";
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        break;
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    case PseudoColor:
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        class = "PseudoColor";
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        break;
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    case TrueColor:
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        class = "TrueColor  ";
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        break;
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    case DirectColor:
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        class = "DirectColor";
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        break;
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    }
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#define VisualLogFormat "0x%02lx %s %2db %db/rgb %3d 0x%04lx 0x%04lx 0x%04lx%s\n"
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    if (dmxScreen) {
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        dmxLogOutput(dmxScreen,
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                     VisualLogFormat,
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                     vi->visualid, class, vi->depth, vi->bits_per_rgb,
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                     vi->colormap_size,
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                     vi->red_mask, vi->green_mask, vi->blue_mask,
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                     defaultVisual ? " *" : "");
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    }
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    else {
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        dmxLog(dmxInfo,
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               "  " VisualLogFormat,
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               vi->visualid, class, vi->depth, vi->bits_per_rgb,
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               vi->colormap_size,
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               vi->red_mask, vi->green_mask, vi->blue_mask,
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               defaultVisual ? " *" : "");
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    }
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}
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/** Translate a (normalized) XInput event \a type into a human-readable
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 * string. */
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const char *
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dmxXInputEventName(int type)
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{
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    switch (type) {
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    case XI_DeviceValuator:
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        return "XI_DeviceValuator";
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    case XI_DeviceKeyPress:
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        return "XI_DeviceKeyPress";
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    case XI_DeviceKeyRelease:
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        return "XI_DeviceKeyRelease";
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    case XI_DeviceButtonPress:
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        return "XI_DeviceButtonPress";
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    case XI_DeviceButtonRelease:
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        return "XI_DeviceButtonRelease";
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    case XI_DeviceMotionNotify:
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        return "XI_DeviceMotionNotify";
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    case XI_DeviceFocusIn:
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        return "XI_DeviceFocusIn";
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    case XI_DeviceFocusOut:
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        return "XI_DeviceFocusOut";
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    case XI_ProximityIn:
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        return "XI_ProximityIn";
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    case XI_ProximityOut:
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        return "XI_ProximityOut";
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    case XI_DeviceStateNotify:
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        return "XI_DeviceStateNotify";
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    case XI_DeviceMappingNotify:
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        return "XI_DeviceMappingNotify";
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    case XI_ChangeDeviceNotify:
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        return "XI_ChangeDeviceNotify";
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    case XI_DeviceKeystateNotify:
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        return "XI_DeviceKeystateNotify";
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    case XI_DeviceButtonstateNotify:
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        return "XI_DeviceButtonstateNotify";
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    default:
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        return "unknown";
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    }
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}
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#endif
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/** Translate an event \a type into a human-readable string. */
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const char *
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dmxEventName(int type)
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{
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    switch (type) {
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    case KeyPress:
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        return "KeyPress";
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    case KeyRelease:
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        return "KeyRelease";
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    case ButtonPress:
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        return "ButtonPress";
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    case ButtonRelease:
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        return "ButtonRelease";
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    case MotionNotify:
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        return "MotionNotify";
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    case EnterNotify:
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        return "EnterNotify";
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    case LeaveNotify:
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        return "LeaveNotify";
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    case FocusIn:
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        return "FocusIn";
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    case FocusOut:
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        return "FocusOut";
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    case KeymapNotify:
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        return "KeymapNotify";
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    case Expose:
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        return "Expose";
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    case GraphicsExpose:
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        return "GraphicsExpose";
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    case NoExpose:
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        return "NoExpose";
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    case VisibilityNotify:
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        return "VisibilityNotify";
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    case CreateNotify:
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        return "CreateNotify";
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    case DestroyNotify:
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        return "DestroyNotify";
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    case UnmapNotify:
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        return "UnmapNotify";
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    case MapNotify:
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        return "MapNotify";
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    case MapRequest:
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        return "MapRequest";
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    case ReparentNotify:
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        return "ReparentNotify";
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    case ConfigureNotify:
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        return "ConfigureNotify";
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    case ConfigureRequest:
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        return "ConfigureRequest";
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    case GravityNotify:
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        return "GravityNotify";
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    case ResizeRequest:
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        return "ResizeRequest";
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    case CirculateNotify:
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        return "CirculateNotify";
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    case CirculateRequest:
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        return "CirculateRequest";
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    case PropertyNotify:
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        return "PropertyNotify";
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    case SelectionClear:
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        return "SelectionClear";
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    case SelectionRequest:
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        return "SelectionRequest";
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    case SelectionNotify:
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        return "SelectionNotify";
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    case ColormapNotify:
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        return "ColormapNotify";
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    case ClientMessage:
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        return "ClientMessage";
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    case MappingNotify:
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        return "MappingNotify";
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    default:
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        return "<unknown>";
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    }
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}
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