sdebug.c
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/* GNU mailutils - a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Library Public License as published by
the Free Software Foundation; either version 2, 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 Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <mailutils/sys/sdebug.h>
#include <mailutils/error.h>
int
_mu_debug_stream_ref (mu_debug_t debug)
{
struct _mu_debug_stream *sdebug = (struct _mu_debug_stream *)debug;
return mu_refcount_inc (sdebug->refcount);
}
void
_mu_debug_stream_destroy (mu_debug_t *pdebug)
{
if (pdebug && *pdebug)
{
struct _mu_debug_stream *sdebug = (struct _mu_debug_stream *)*pdebug;
if (mu_refcount_dec (sdebug->refcount) == 0)
{
if (sdebug->stream)
{
if (sdebug->close_on_destroy)
stream_close (sdebug->stream);
stream_destroy (&sdebug->stream);
}
mu_refcount_destroy (&sdebug->refcount);
free (sdebug);
}
*pdebug = NULL;
}
}
int
_mu_debug_stream_set_level (mu_debug_t debug, size_t level)
{
struct _mu_debug_stream *sdebug = (struct _mu_debug_stream *)debug;
sdebug->level = level;
return 0;
}
int
_mu_debug_stream_get_level (mu_debug_t debug, size_t *plevel)
{
struct _mu_debug_stream *sdebug = (struct _mu_debug_stream *)debug;
if (plevel)
*plevel = sdebug->level;
return 0;
}
int
_mu_debug_stream_print (mu_debug_t debug, size_t level, const char *mesg)
{
struct _mu_debug_stream *sdebug = (struct _mu_debug_stream *)debug;
size_t n = 0;
int status;
if (mesg == NULL)
return MU_ERROR_INVALID_PARAMETER;
if (!(sdebug->level & level))
return 0;
status = stream_write (sdebug->stream, mesg, strlen (mesg), sdebug->offset,
&n);
sdebug->offset += n;
return status;
}
static struct _mu_debug_vtable _mu_debug_stream_vtable =
{
_mu_debug_stream_ref,
_mu_debug_stream_destroy,
_mu_debug_stream_get_level,
_mu_debug_stream_set_level,
_mu_debug_stream_print
};
int
mu_debug_stream_create (mu_debug_t *pdebug, stream_t stream,
int close_on_destroy)
{
struct _mu_debug_stream *sdebug;
if (pdebug == NULL || stream == NULL)
return MU_ERROR_INVALID_PARAMETER;
sdebug = calloc (sizeof (*sdebug), 1);
if (sdebug == NULL)
return MU_ERROR_NO_MEMORY;
mu_refcount_create (&sdebug->refcount);
if (sdebug->refcount == NULL)
{
free (sdebug);
return MU_ERROR_NO_MEMORY;
}
sdebug->level = 0;
sdebug->offset = 0;
sdebug->stream = stream;
sdebug->close_on_destroy = close_on_destroy;
sdebug->base.vtable = &_mu_debug_stream_vtable;
*pdebug = &sdebug->base;
return 0;
}