src/add-ons/kernel/drivers/audio/echo/debug.c

   1 /*
   2  * EchoGals/Echo24 BeOS Driver for Echo audio cards
   3  *
   4  * Copyright (c) 2003, Jerome Duval (jerome.duval@free.fr)
   5  *
   6  * Original code : BeOS Driver for Intel ICH AC'97 Link interface
   7  * Copyright (c) 2002, Marcus Overhagen <marcus@overhagen.de>
   8  *
   9  * All rights reserved.
  10  * Redistribution and use in source and binary forms, with or without modification,
  11  * are permitted provided that the following conditions are met:
  12  *
  13  * - Redistributions of source code must retain the above copyright notice,
  14  *   this list of conditions and the following disclaimer.
  15  * - Redistributions in binary form must reproduce the above copyright notice,
  16  *   this list of conditions and the following disclaimer in the documentation
  17  *   and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  21  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  25  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  27  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  28  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  */
  31
  32
  33 #include <KernelExport.h>
  34
  35 #include <stdio.h>
  36 #include <fcntl.h>
  37 #include <unistd.h>
  38
  39 #include <directories.h>
  40 #include <OS.h>
  41
  42 #include "debug.h"
  43
  44
  45 #if DEBUG > 0
  46 static const char *logfile = kSystemLogDirectory "/" DRIVER_NAME ".log";
  47 static sem_id loglock;
  48 #endif
  49
  50
  51 void debug_printf(const char *text,...);
  52 void log_printf(const char *text,...);
  53
  54
  55 void debug_printf(const char *text,...)
  56 {
  57         char buf[1024];
  58         va_list ap;
  59
  60         va_start(ap,text);
  61         vsprintf(buf,text,ap);
  62         va_end(ap);
  63
  64         dprintf(DRIVER_NAME ": %s",buf);
  65 }
  66
  67
  68 void log_create()
  69 {
  70 #if DEBUG > 0
  71         int fd = open(logfile, O_WRONLY | O_CREAT | O_TRUNC, 0666);
  72         const char *text = DRIVER_NAME ", " ECHO_VERSION "\n";
  73         loglock = create_sem(1,"logfile sem");
  74         write(fd,text,strlen(text));
  75         close(fd);
  76 #endif
  77 }
  78
  79
  80 void log_printf(const char *text,...)
  81 {
  82 #if DEBUG > 0
  83         int fd;
  84         char buf[1024];
  85         va_list ap;
  86
  87         va_start(ap,text);
  88         vsprintf(buf,text,ap);
  89         va_end(ap);
  90
  91         dprintf(DRIVER_NAME ": %s",buf);
  92
  93         acquire_sem(loglock);
  94         fd = open(logfile, O_WRONLY | O_APPEND);
  95         write(fd,buf,strlen(buf));
  96         close(fd);
  97         release_sem(loglock);
  98
  99         #if DEBUG > 1
 100                 snooze(150000);
 101         #endif
 102 #endif
 103 }