src/libcaptive/kd/kdebug.c

   1 /* $Id$
   2  * reactos spinlock emulation of libcaptive
   3  * Copyright (C) 2002 Jan Kratochvil <project-captive@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "reactos/internal/kd.h"        /* self */
  23 #include "captive/unicode.h"    /* for captive_validate_AnsiString() */
  24 #include <glib/gtypes.h>
  25 #include <glib/gmessages.h>
  26 #include <glib/galloca.h>
  27 #include <glib/gstring.h>
  28 #include <glib/gmem.h>
  29
  30
  31 /**
  32  * KdDebuggerEnabled:
  33  *
  34  * #BOOLEAN variable defined to %FALSE by libcaptive.
  35  * Currently just enables some debug output in
  36  * reactos/ntoskrnl/ldr/loader.c
  37  */
  38 BOOLEAN /* __declspec(dllexport) */ KdDebuggerEnabled=FALSE;
  39
  40 /**
  41  * KdDebugState:
  42  *
  43  * Defined to %KD_DEBUG_DISABLED by default in reactos.
  44  * Currently just enables some debug output in
  45  * reactos/ntoskrnl/ldr/loader.c
  46  */
  47 ULONG KdDebugState=KD_DEBUG_GDB;
  48
  49
  50 /* storage for the trailing string part without newline */
  51 static GString *KdpPrintString_buffer;
  52
  53 /**
  54  * KdpPrintString:
  55  * @String: String text to print. Buffer is flushed only when newline seen.
  56  *
  57  * Prints the specified text string to the console. libcaptive
  58  * accepts any newline characters as valid and autonewlines the text
  59  * if needed.
  60  */
  61 ULONG KdpPrintString(PANSI_STRING String)
  62 {
  63 gchar *out_base,*out;
  64 const CHAR *in;
  65
  66         g_return_val_if_fail(captive_validate_AnsiString(String),0);
  67
  68         out_base=g_alloca(((size_t)String->Length)+1);
  69         out=out_base;
  70         for (in=String->Buffer;*in;in++) {
  71                 if (*in=='\r' && in[1]=='\n')
  72                         in++;
  73                 if (*in=='\r' || *in=='\n')
  74                         *out++='\n';
  75                 else
  76                         *out++=*in;
  77                 }
  78         *out='\0';
  79
  80         /* Print all completed lines */
  81         if ((out=strrchr(out_base,'\n'))) {
  82 gchar *previous;
  83
  84                 *out='\0';      /* cut off the rest of string */
  85
  86                 if (!KdpPrintString_buffer)
  87                         previous=NULL;
  88                 else {
  89                         previous=g_string_free(KdpPrintString_buffer,
  90                                         FALSE);  /* free_segment */
  91                         KdpPrintString_buffer=NULL;
  92                         }
  93                 g_message("KdpPrintString: %s%s",       /* newline is appended by g_message() */
  94                                 (!previous ? "" : previous),
  95                                 out_base);
  96                 if (previous)
  97                         g_free(previous);
  98
  99                 out_base=out+1; /* leave the rest of string (if any) */
 100                 }
 101
 102         /* store/append the remaining rest of string w/o newline */
 103         if (*out_base)
 104                 KdpPrintString_buffer=(!KdpPrintString_buffer ? g_string_new(out_base)
 105                                 : g_string_append(KdpPrintString_buffer,out_base));
 106
 107         return (ULONG)String->Length;
 108 }