Commit a9d391ff authored by Philipp Schafft's avatar Philipp Schafft 🦁

Feature: Added generic reference object

parent 54bbfc35
......@@ -29,6 +29,7 @@ noinst_HEADERS = \
md5.h \
matchfile.h \
tls.h \
refobject.h \
event.h \
event_log.h \
event_exec.h \
......@@ -68,6 +69,7 @@ icecast_SOURCES = \
md5.c \
matchfile.c \
tls.c \
refobject.c \
format.c \
format_ogg.c \
format_mp3.c \
......
......@@ -9,6 +9,10 @@
#ifndef __ICECASTTYPES_H__
#define __ICECASTTYPES_H__
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "compat.h"
/* ---[ client.[ch] ]--- */
......@@ -88,4 +92,16 @@ typedef enum {
typedef struct _relay_server relay_server;
/* ---[ refobject.[ch] ]--- */
typedef struct refobject_base_tag refobject_base_t;
#ifdef HAVE_TYPE_ATTRIBUTE_TRANSPARENT_UNION
typedef union __attribute__ ((__transparent_union__)) {
refobject_base_t *refobject_base;
} refobject_t;
#else
typedef void * refobject_t;
#endif
#endif
/* Icecast
*
* This program is distributed under the GNU General Public License, version 2.
* A copy of this license is included with this source.
*
* Copyright 2018, Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include "common/thread/thread.h"
#include "refobject.h"
#ifdef HAVE_TYPE_ATTRIBUTE_TRANSPARENT_UNION
#define TO_BASE(x) ((x).refobject_base)
#else
#define TO_BASE(x) ((refobject_base_t*)(x))
#endif
refobject_t refobject_new(size_t len, refobject_free freecb, void *userdata)
{
refobject_base_t *ret = NULL;
if (len < sizeof(refobject_base_t))
return (refobject_t)ret;
ret = calloc(1, len);
if (ret == NULL)
return (refobject_t)ret;
ret->refc = 1;
ret->freecb = freecb;
ret->userdata = userdata;
thread_mutex_create(&(ret->lock));
return (refobject_t)ret;
}
int refobject_ref(refobject_t self)
{
if (TO_BASE(self) == NULL)
return -1;
thread_mutex_lock(&(TO_BASE(self)->lock));
TO_BASE(self)->refc++;
thread_mutex_unlock(&(TO_BASE(self)->lock));
return 0;
}
int refobject_unref(refobject_t self)
{
register refobject_base_t *base = TO_BASE(self);
if (base == NULL)
return -1;
thread_mutex_lock(&(base->lock));
base->refc--;
if (base->refc) {
thread_mutex_unlock(&(base->lock));
return 0;
}
if (base->freecb)
base->freecb(self, &(base->userdata));
if (base->userdata)
free(base->userdata);
thread_mutex_unlock(&(base->lock));
thread_mutex_destroy(&(base->lock));
return 0;
}
void * refobject_get_userdata(refobject_t self)
{
void *ret;
if (TO_BASE(self) == NULL)
return NULL;
thread_mutex_lock(&(TO_BASE(self)->lock));
ret = TO_BASE(self)->userdata;
thread_mutex_unlock(&(TO_BASE(self)->lock));
return ret;
}
int refobject_set_userdata(refobject_t self, void *userdata)
{
if (TO_BASE(self) == NULL)
return -1;
thread_mutex_lock(&(TO_BASE(self)->lock));
TO_BASE(self)->userdata = userdata;
thread_mutex_unlock(&(TO_BASE(self)->lock));
return 0;
}
/* Icecast
*
* This program is distributed under the GNU General Public License, version 2.
* A copy of this license is included with this source.
*
* Copyright 2018, Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
*/
#ifndef __REFOBJECT_H__
#define __REFOBJECT_H__
#include "common/thread/thread.h"
#include "icecasttypes.h"
#include "compat.h"
typedef void (*refobject_free)(refobject_t self, void **userdata);
struct refobject_base_tag {
size_t refc;
mutex_t lock;
void *userdata;
refobject_free freecb;
};
refobject_t refobject_new(size_t len, refobject_free freecb, void *userdata);
int refobject_ref(refobject_t self);
int refobject_unref(refobject_t self);
void * refobject_get_userdata(refobject_t self);
int refobject_set_userdata(refobject_t self, void *userdata);
#endif
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment