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-rw-r--r--lib/resource.h70
1 files changed, 70 insertions, 0 deletions
diff --git a/lib/resource.h b/lib/resource.h
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+++ b/lib/resource.h
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+/*
+ * BIRD Resource Manager
+ *
+ * (c) 1998 Martin Mares <mj@ucw.cz>
+ *
+ * Can be freely distributed and used under the terms of the GNU GPL.
+ */
+
+#ifndef _BIRD_RESOURCE_H_
+#define _BIRD_RESOURCE_H_
+
+#include <lib/lists.h>
+
+/* Resource */
+
+typedef struct resource {
+ node n; /* Inside resource pool */
+ struct resclass *class; /* Resource class */
+} resource;
+
+/* Resource class */
+
+struct resclass {
+ char *name; /* Resource class name */
+ unsigned size; /* Standard size of single resource */
+ void (*free)(resource *); /* Freeing function */
+ void (*dump)(resource *); /* Dump to debug output */
+};
+
+/* Generic resource manipulation */
+
+typedef struct pool pool;
+
+pool *rp_new(pool *); /* Create new pool */
+void rp_init(pool *); /* Initialize static pool */
+void rp_empty(pool *); /* Free everything in the pool */
+void rfree(void *); /* Free single resource */
+void rdump(void *); /* Dump to debug output */
+
+void ralloc(pool *, struct resclass *);
+
+/* Normal memory blocks */
+
+void *mb_alloc(pool *, unsigned size);
+void *mb_free(void *);
+
+/* Memory pools with linear allocation */
+
+typedef struct mempool mempool;
+
+mempool *mp_new(pool *, unsigned blk);
+void mp_trim(pool *); /* Free unused memory */
+void *mp_alloc(mempool *, unsigned size); /* Aligned */
+void *mp_allocu(mempool *, unsigned size); /* Unaligned */
+void *mp_allocz(mempool *, unsigned size); /* With clear */
+
+/* Slabs */
+
+typedef struct slab slab;
+
+slab *sl_new(pool *, unsigned size);
+void *sl_alloc(slab *);
+void sl_free(slab *, void *);
+
+/* Low-level memory allocation functions, please don't use */
+
+void *xmalloc(unsigned);
+#define xfree(x) free(x)
+
+#endif