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/*
* The Rin Library – diagnostics module
*
* Copyright (C) 2015 Gediminas Jakutis
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; version 2.1
* of the License.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <string.h>
#include <time.h>
#include "rin/diagnostic.h"
#include "rin/definitions.h"
#include "diagnostic_private.h"
static struct iostate {
FILE *err;
FILE *warn;
FILE *fixme;
FILE *info;
unsigned int flags;
char pidconv[8];
} state = {NULL, NULL, NULL, NULL, RIN_DIAG_PREFIX, "%08x:"};
int rin_diag_flags(int flag, int action)
{
/* checking for non-existent flags */
if (flag & ~(RIN_DIAG_ALLFLAGS)) {
return EINVAL;
}
state.flags = action ? (state.flags | flag) : (state.flags & ~(flag));
return 0;
}
int rin_diag_set_outstream(enum rin_diag_outstream channel, FILE *stream)
{
if (!stream) {
return EINVAL;
}
switch (channel) {
case rin_diag_err:
state.err = stream;
break;
case rin_diag_warn:
state.warn = stream;
break;
case rin_diag_fixme:
state.fixme = stream;
break;
case rin_diag_info:
state.info = stream;
break;
default:
return EINVAL;
}
return 0;
}
void rin_err(const char *format, ...)
{
va_list args;
va_start(args, format);
__rin_msg(state.err ? state.err : stderr, "error", format, args);
}
void rin_warn(const char *format, ...)
{
va_list args;
va_start(args, format);
__rin_msg(state.warn ? state.warn : stderr, "warning", format, args);
}
void rin_fixme(const char *format, ...)
{
va_list args;
va_start(args, format);
__rin_msg(state.fixme ? state.fixme : stderr, "fixme", format, args);
}
void rin_info(const char *format, ...)
{
va_list args;
va_start(args, format);
__rin_msg(state.info ? state.info : stdout, "info", format, args);
}
static void __rin_msg(FILE *stream, const char *prefix, const char *format, va_list args)
{
rin_once(__rin_pidconvadjust());
if (state.flags & RIN_DIAG_PREFIX) {
fprintf(stream, "%s:", prefix);
}
if (state.flags & RIN_DIAG_THREADNUM) {
fprintf(stream, state.pidconv, gettid());
}
if (state.flags & RIN_DIAG_TIME) {
struct timespec t;
clock_gettime(CLOCK_REALTIME, &t);
fprintf(stream, "%lu.%lu:", t.tv_sec, t.tv_nsec);
}
vfprintf(stream, format, args);
}
static void __rin_pidconvadjust(void)
{
if (sizeof(pid_t) == 4) {
const char convstr[8] = "%04hx:";
memcpy(state.pidconv, convstr, sizeof(convstr));
}
}
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