view src/prop.c @ 1401:2fc1f54a1a3b

Mainly fix the clone_from_subtree to update the children of the parent node. We need to clearify all related codes in the future to make the logic more clear.
author wycc
date Sun, 03 Apr 2011 18:12:42 +0800
parents 586e50f82c1f
children
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line source

// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
// vim: sw=4:ts=8:sts=4
#include "mb_prop.h"

#define ASSERT(x)


static
mb_prop_entry_t *_mb_prop_find(mb_prop_store_t *prop_store, int id) {
    mb_prop_entry_t *entry;

    for(entry = STAILQ_HEAD(prop_store->entries);
	entry != NULL;
	entry = STAILQ_NEXT(mb_prop_entry_t, next, entry)) {
	if(entry->id == id)
	    return entry;
    }

    return NULL;
}

void mb_prop_store_destroy(mb_prop_store_t *prop_store) {
    mb_prop_entry_t *entry, *last;

    last = STAILQ_HEAD(prop_store->entries);
    if(last == NULL)
	return;

    for(entry = STAILQ_NEXT(mb_prop_entry_t, next, last);
	entry != NULL;
	entry = STAILQ_NEXT(mb_prop_entry_t, next, entry)) {
	STAILQ_REMOVE(prop_store->entries, mb_prop_entry_t, next, last);
	elmpool_elm_free(prop_store->entry_pool, last);
	last = entry;
    }
    STAILQ_REMOVE(prop_store->entries, mb_prop_entry_t, next, last);
    elmpool_elm_free(prop_store->entry_pool, last);
}

void *mb_prop_set(mb_prop_store_t *prop_store, int id, void *value) {
    mb_prop_entry_t *entry;
    void *old;

    entry = _mb_prop_find(prop_store, id);
    if(entry) {
	old = entry->value;
	entry->value = value;
	return old;
    }

    entry = elmpool_elm_alloc(prop_store->entry_pool);
    ASSERT(entry != NULL);
    entry->id = id;
    entry->value = value;
    STAILQ_INS(prop_store->entries, mb_prop_entry_t, next, entry);

    return NULL;
}

void *mb_prop_get(mb_prop_store_t *prop_store, int id) {
    mb_prop_entry_t *entry;

    entry = _mb_prop_find(prop_store, id);
    if(entry)
	return entry->value;

    return NULL;
}

void mb_prop_del(mb_prop_store_t *prop_store, int id) {
    mb_prop_entry_t *entry;

    entry = _mb_prop_find(prop_store, id);
    if(entry)
	STAILQ_REMOVE(prop_store->entries, mb_prop_entry_t, next, entry);
}

int mb_prop_has(mb_prop_store_t *prop_store, int id) {
    mb_prop_entry_t *entry;

    entry = _mb_prop_find(prop_store, id);
    if(entry)
	return 1;

    return 0;
}