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/*
Quickplot - an interactive 2D plotter
Copyright (C) 1998-2011 Lance Arsenault
This file is part of Quickplot.
Quickplot 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 3 of the License,
or (at your option) any later version.
Quickplot 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 Quickplot. If not, see <http://www.gnu.org/licenses/>.
*/
/* This file will not be used if --enable-debug was not set
* as a ./configure option.
*/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include <stdlib.h>
#include "config.h"
#include "spew.h"
#include "term_color.h"
#ifdef DMALLOC
# include "dmalloc.h"
#endif
static int spew_level = -1;
static FILE *spew_file = NULL;
static int last_spewed = 0; /* bool */
int qp_set_spew_level(int level)
{
int old_level = spew_level;
spew_level = level;
return old_level;
}
int qp_get_spew_level(void)
{
return spew_level;
}
void qp_spew_init(int level)
{
char *env;
qp_term_color_init();
spew_file = stdout; /* default value */
#ifdef QP_DEBUG
spew_level = 0; /* DEBUG default value */
#else
spew_level = 2; /* non-DEBUG default value */
#endif
env = getenv("QUICKPLOT_SPEW_FILE");
if(env && env[0])
{
if(strncasecmp(env, "none", 4) == 0 ||
env[0] == '\0')
{
spew_level = 5; /* OFF */
spew_file = NULL;
}
else if(strncasecmp(env, "stdout", 4) == 0 ||
strncasecmp(env, "out", 1) == 0 ||
env[0] == '1')
;
else if(strncasecmp(env, "stderr", 4) == 0 ||
strncasecmp(env, "err", 1) == 0 ||
env[0] == '2')
spew_file = stderr;
else
{
spew_file = fopen(env, "a");
if(!spew_file)
spew_file = stdout;
}
}
env = getenv("QUICKPLOT_SPEW_LEVEL");
if(spew_level == 5 /* NO SPEW */)
env = NULL;
if(env && env[0])
{
if(strncasecmp(env, "off", 2) == 0 ||
strcasecmp(env, "no") == 0)
spew_level = 5; /* NO SPEW */
else if( strncasecmp(env, "error", 1) == 0 ||
env[0] == '4')
spew_level = 4; /* ERROR */
else if(strncasecmp(env, "on", 1) == 0 ||
strncasecmp(env, "info", 1) == 0 ||
strncasecmp(env, "yes", 1) == 0 ||
strncasecmp(env, "debug", 1) == 0 ||
/* there is no debug level so we set
* debug to info */
env[0] == '1')
spew_level = 1; /* INFO */
else if(strncasecmp(env, "notice", 3) == 0 ||
env[0] == '2')
spew_level = 2; /* NOTICE */
else if(strncasecmp(env, "debug", 1) == 0 ||
env[0] == '0')
spew_level = 1; /* INFO, there is no DEBUG */
else if(strncasecmp(env, "warn", 1) == 0||
env[0] == '3')
spew_level = 3; /* WARN */
}
else if(level >= 0)
spew_level = level;
}
void qp_spew(int level, int show_errno, const char *format, ...)
{
if(spew_level == -1)
qp_spew_init(-1);
if(level > 4)
level = 4;
else if(level < 1)
level = 1;
if(level >= spew_level)
{
va_list ap;
last_spewed = 1;
if(level == 2)
fprintf(spew_file, "%sQP:%s ", blu, trm);
else if(level == 3)
fprintf(spew_file, "%sQP:%s ", byel, trm);
else if(level == 4)
fprintf(spew_file, "%sQP:%s ", bred, trm);
else
fprintf(spew_file, "QP: ");
va_start(ap, format);
vfprintf(spew_file, format, ap);
fflush(spew_file);
va_end(ap);
if(show_errno)
{
char errstr[128];
/* thread safe strerror() */
strerror_r(errno, errstr, 128);
fprintf(spew_file, " errno=%d:\"%s\"\n", errno, errstr);
}
}
else
last_spewed = 0;
}
void qp_spew_append(const char *format, ...)
{
if(last_spewed)
{
va_list ap;
va_start(ap, format);
vfprintf(spew_file, format, ap);
fflush(spew_file);
va_end(ap);
}
}
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