mu_dbgport.c
2.99 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2009-2012, 2014 Free Software Foundation, Inc.
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; either
version 3 of the License, or (at your option) any later version.
This library 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, see
<http://www.gnu.org/licenses/>. */
#include "mu_scm.h"
struct _mu_debug_port
{
mu_stream_t stream;
int level;
};
static long scm_tc16_mu_debug_port;
SCM
mu_scm_make_debug_port (int level)
{
struct _mu_debug_port *dp;
SCM port;
scm_port *pt;
mu_stream_t str;
if (mu_dbgstream_create (&str, level))
return SCM_BOOL_F;
dp = scm_gc_malloc (sizeof (struct _mu_debug_port), "mu-debug-port");
dp->level = level;
dp->stream = str;
port = scm_cell (scm_tc16_mu_debug_port, 0);
pt = scm_add_to_port_table (port);
SCM_SETPTAB_ENTRY (port, pt);
pt->rw_random = 0;
SCM_SET_CELL_TYPE (port,
(scm_tc16_mu_debug_port | SCM_OPN | SCM_WRTNG |
SCM_BUF0));
SCM_SETSTREAM (port, dp);
return port;
}
#define MU_DEBUG_PORT(x) ((struct _mu_debug_port *) SCM_STREAM (x))
static SCM
_mu_debug_port_mark (SCM port)
{
return SCM_BOOL_F;
}
static void
_mu_debug_port_flush (SCM port)
{
/* struct _mu_debug_port *dp = MU_DEBUG_PORT (port); */
/* FIXME: */
}
static int
_mu_debug_port_close (SCM port)
{
struct _mu_debug_port *dp = MU_DEBUG_PORT (port);
if (dp)
{
_mu_debug_port_flush (port);
SCM_SETSTREAM (port, NULL);
scm_gc_free (dp, sizeof (struct _mu_debug_port), "mu-debug-port");
}
return 0;
}
static scm_sizet
_mu_debug_port_free (SCM port)
{
_mu_debug_port_close (port);
return 0;
}
static int
_mu_debug_port_fill_input (SCM port)
{
return EOF;
}
static void
_mu_debug_port_write (SCM port, const void *data, size_t size)
{
struct _mu_debug_port *dp = MU_DEBUG_PORT (port);
mu_stream_write (dp->stream, data, size, NULL);
}
static int
_mu_debug_port_print (SCM exp, SCM port, scm_print_state * pstate)
{
scm_puts ("#<Mailutis debug port>", port);
return 1;
}
void
mu_scm_debug_port_init ()
{
scm_tc16_mu_debug_port = scm_make_port_type ("mu-debug-port",
_mu_debug_port_fill_input,
_mu_debug_port_write);
scm_set_port_mark (scm_tc16_mu_debug_port, _mu_debug_port_mark);
scm_set_port_free (scm_tc16_mu_debug_port, _mu_debug_port_free);
scm_set_port_print (scm_tc16_mu_debug_port, _mu_debug_port_print);
scm_set_port_flush (scm_tc16_mu_debug_port, _mu_debug_port_flush);
scm_set_port_close (scm_tc16_mu_debug_port, _mu_debug_port_close);
}