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Diffstat (limited to 'clib/src/trace_indent.c')
| -rw-r--r-- | clib/src/trace_indent.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/clib/src/trace_indent.c b/clib/src/trace_indent.c new file mode 100644 index 0000000..c1dd280 --- /dev/null +++ b/clib/src/trace_indent.c @@ -0,0 +1,185 @@ +/* + * Copyright (c) International Business Machines Corp., 2011 + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Author: B. Rafanello + * + * Module: trace_indent.c + * + * Implements indentation for the trace output from bb_trace + * + * Version 0.0.0.1 + */ + +#include "trace_indent.h" +#include "stdio.h" + +/*-------------------------------------------------- + * Private Constants + --------------------------------------------------*/ + +#define DEFAULT_INDENT_SIZE 5 +#define MAX_INDENT_SIZE 129 +#define DEFAULT_INDENT " " + +/*-------------------------------------------------- + * Global variables. + --------------------------------------------------*/ + +/* The current trace level. */ +unsigned char BB_TRACE_LEVEL = 0; +unsigned char BB_PREVIOUS_TRACE_LEVEL = 0; + +/*-------------------------------------------------- + * Private global variables. + --------------------------------------------------*/ + +static unsigned int Current_Indent_Level = 0; +static unsigned int Current_Indent_Size = DEFAULT_INDENT_SIZE; +static char Indent[MAX_INDENT_SIZE] = DEFAULT_INDENT; + +/*-------------------------------------------------- + * Public Functions + --------------------------------------------------*/ + +/*********************************************************************/ +/* */ +/* Function Name: Set_Indent_Size */ +/* */ +/* Descriptive Name: Sets the number of spaces to use per indent. */ +/* If the current indent level is 5 and this */ +/* function is called to set the indent size to */ +/* 10, then 50 spaces will be printed by the */ +/* trace macros before each line of trace */ +/* output at this indent level. */ +/* */ +/* Input: unsigned int Spaces_Per_Indent - A value less than 128. */ +/* */ +/* Output: If Success : The specified value will be used for the */ +/* size of an indent. */ +/* */ +/* If Failure : This should only happen if the value */ +/* specified is >= 128, in which case it is */ +/* ignored and the previous value is retained.*/ +/* */ +/* Error Handling: Bad values for Spaces_Per_Indent are ignored. */ +/* */ +/* Side Effects: The number of spaces per indent may be changed. */ +/* */ +/* Notes: */ +/* */ +/*********************************************************************/ +void Set_Indent_Size(unsigned int Spaces_Per_Indent) +{ + unsigned int i; + + if (Spaces_Per_Indent <= MAX_INDENT_SIZE) { + Current_Indent_Size = Spaces_Per_Indent; + for (i = 0; i < Current_Indent_Size; i++) { + Indent[i] = ' '; + } + Indent[i] = 0x00; + } + + return; +} + +/*********************************************************************/ +/* */ +/* Function Name: Indent_Trace_Output */ +/* */ +/* Descriptive Name: This function increases the current indent */ +/* level by one. */ +/* */ +/* Input: None. */ +/* */ +/* Output: If Success : None */ +/* */ +/* If Failure : None */ +/* */ +/* Error Handling: None */ +/* */ +/* Side Effects: The current indent level for trace output will */ +/* be increased by 1. */ +/* */ +/* Notes: */ +/* */ +/*********************************************************************/ +void Indent_Trace_Output(void) +{ + Current_Indent_Level += 1; + return; +} + +/*********************************************************************/ +/* */ +/* Function Name: Outdent_Trace_Output */ +/* */ +/* Descriptive Name: This function reduces the current indent */ +/* level if it is greater than 0. */ +/* */ +/* Input: None */ +/* */ +/* Output: If Success : None */ +/* */ +/* If Failure : None */ +/* */ +/* Error Handling: If the current indent level is zero, then this */ +/* function does nothing. */ +/* */ +/* Side Effects: The current indent level for trace output may be */ +/* decreased by 1. */ +/* */ +/* Notes: */ +/* */ +/*********************************************************************/ +void Outdent_Trace_Output(void) +{ + if (Current_Indent_Level > 0) + Current_Indent_Level -= 1; + return; +} + +/*********************************************************************/ +/* */ +/* Function Name: Do_Indent */ +/* */ +/* Descriptive Name: This function prints to stderr the number of */ +/* spaces corresponding to the current indent */ +/* level. */ +/* */ +/* Input: None */ +/* */ +/* Output: If Success : None */ +/* */ +/* If Failure : None */ +/* */ +/* Error Handling: None */ +/* */ +/* Side Effects: Some number of space may be output to stderr. */ +/* */ +/* Notes: */ +/* */ +/*********************************************************************/ +void Do_Indent(void) +{ + unsigned int i; + + for (i = 0; i < Current_Indent_Level; i++) { + fprintf(stderr, "%s", Indent); + } + +} |
