forked from lei.chen/myxce
151 lines
3.2 KiB
C
151 lines
3.2 KiB
C
#include <errno.h>
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#include <rtti.h>
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#include <stdarg.h>
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#include <stdatomic.h>
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#include <stdlib.h>
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#include <string.h>
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#include "mylock.h"
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#include "resobj.h"
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#include "utils.h"
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#include "xstring.h"
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typedef struct {
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atomic_ulong refcount;
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} resobj_private_t;
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static size_t resobj_datasize(va_list ap)
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{
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size_t sz = sizeof(xce_resource_t);
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return sz;
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}
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static int resobj_init(meta_obj_t* obj, va_list ap)
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{
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xce_resource_t* dst = RTTI_OBJ_TO_DATA(xce_resource_t, obj);
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resobj_private_t* priv = (resobj_private_t*)RTTI_OBJ_TO_PRIV(obj);
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xce_resource_t* src = va_arg(ap, xce_resource_t*);
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if (src == NULL) {
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return -EINVAL;
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}
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memcpy(dst, src, sizeof(*dst));
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dst->name = makeString(src->name);
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dst->desc = makeString(src->desc);
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#if 0
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if (src->distributions != NULL) {
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MOVE_PTR(dst->distributions, src->distributions);
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}
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#else
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/* FIXME: */
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dst->distributions = NULL;
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#endif
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#if 0
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MOVE_PTR(dst->hbased_defined, src->hbased_defined);
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#else
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/* FIXME: */
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dst->hbased_defined = NULL;
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#endif
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priv->refcount = 1;
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return 1;
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}
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static void resobj_destroy(meta_obj_t* obj)
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{
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xce_resource_t* r = RTTI_OBJ_TO_DATA(xce_resource_t, obj);
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resobj_private_t* priv = (resobj_private_t*)RTTI_OBJ_TO_PRIV(obj);
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dereference(r->name);
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dereference(r->desc);
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memset(priv, 0x0, sizeof(*priv));
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return;
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}
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static int resobj_reference(meta_obj_t* obj)
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{
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resobj_private_t* priv = (resobj_private_t*)RTTI_OBJ_TO_PRIV(obj);
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atomic_fetch_add(&(priv->refcount), 1);
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return 1;
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}
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static void resobj_dereference(meta_obj_t* obj)
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{
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resobj_private_t* priv = (resobj_private_t*)RTTI_OBJ_TO_PRIV(obj);
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xce_resource_t* w = RTTI_OBJ_TO_DATA(xce_resource_t, obj);
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uint64_t count = 0;
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count = atomic_fetch_sub(&(priv->refcount), 1);
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if (count == 1) {
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destroy_(w, (obj_destroy_fn_t)resobj_destroy);
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}
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return;
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}
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static typeinfo_t resobj_type
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= { .name = "xce resobj",
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.privateSize = sizeof(resobj_private_t),
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.dataSize = (datasize_fn_t)resobj_datasize,
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.init = (obj_init_fn_t)resobj_init,
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.destroy = NULL,
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.interfaces
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= { .reference = &(intf_reference_t) {
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.reference = (reference_fn_t)resobj_reference,
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.dereference = (dereference_fn_t)resobj_dereference } } };
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static xce_resource_t* makeResource_(var resmgr, xce_resource_t* r)
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{
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xce_resource_t* resobj = NULL;
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int rc;
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rc = key_find(resmgr, (void*)r->name, (void**)&resobj);
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if ((rc < 0) && (rc != -ENOENT)) {
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errno = -rc;
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return NULL;
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}
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if (rc > 0) {
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errno = EEXIST;
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return NULL;
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}
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resobj = makeInstance(&resobj_type, r);
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if (resobj != NULL) {
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rc = key_add(resmgr, (void*)resobj->name, (void*)resobj);
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if (rc < 0) {
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destroy(resobj);
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errno = -rc;
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return NULL;
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}
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resobj->idx = rc;
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}
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return resobj;
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}
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xce_resource_t* makeResource(var resmgr, xce_resource_t* r)
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{
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xce_resource_t* r1 = NULL;
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lock(resmgr, RTTI_LOCK_WRITE);
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r1 = makeResource_(resmgr, r);
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unlock(resmgr);
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return r1;
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}
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