added initial mcache structs and API;

include/sntl/mcache.h

@@ -0,0 +1,50 @@
+#ifndef __MCACHE_H__
+#define	__MCACHE_H__
+
+#include <stdint.h>
+#include <time.h>
+#include <sys/types.h>
+#include <pthread.h>
+
+#include <tdata/usrtc.h>
+#include <tdata/idx_allocator.h>
+
+#define _MCACHE_MAGIC  0xabcdbeef
+#define _MPG_SIZE      4096
+
+#define _MCACHE_EMINSIZE  sizeof(unsigned long) + 8
+#define _MCACHE_EMAXSIZE  sizeof(unsigned long) + 224
+
+#define _MCACHE_PREALLOC    (1 << 1)  /* preallocate elements on initialization */
+#define _MCACHE_ALLOCAHEAD  (1 << 2)  /* allocate more ahead */
+#define _MCACHE_MEMFREE     (1 << 3)  /* free as possible */
+
+/* this structure used to store info on page, and located
+ * at the beginning of the allocated page
+ */
+struct _mpg {
+  void *addr;
+  unsigned int use;
+  usrtc_node_t node;
+};
+
+typedef struct __sntl_mcache_ {
+  unsigned int magic; /** < first 32bit to check it */
+  usrtc_t pg_tree;    /** < pages tree */
+  size_t esize;       /** < element size*/
+  pthread_rwlock_t lock;  /** < thread safe cap */
+  usrtc_t allocated;  /** < allocated elements to increase allocation */
+  usrtc_t used;       /** < used ones */
+  unsigned int epc;   /** < elements per cache page */
+  int flags;          /** < flags of the cache */
+} cntl_mcache_t;
+
+int sntl_mcache_init(sntl_mcache_t*, size_t, int);
+
+void* sntl_mcache_alloc(sntl_mcache_t*);
+
+void sntl_mcache_free(void*);
+
+void sntl_mcache_destroy(sntl_mcache_t*);
+
+#endif /* __MCACHE_H__ */

lib/mcache.c

@@ -0,0 +1,43 @@
+/*
+ * Secure Network Transport Layer Library implementation.
+ * This is a proprietary software. See COPYING for further details.
+ *
+ * (c) 2013-2014 Copyright Askele, inc. <http://askele.com>
+ * (c) 2013-2014 Copyright Askele Ingria, inc. <http://askele-ingria.com>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <tdata/usrtc.h>
+
+#include <sntl/mcache.h>
+
+int sntl_mcache_init(sntl_mcache_t *mc, size_t esize, int flags)
+{
+  return EINVAL;
+}
+
+void* sntl_mcache_alloc(sntl_mcache_t *mc)
+{
+  return NULL;
+}
+
+void sntl_mcache_free(void *p)
+{
+  return;
+}
+
+void sntl_mcache_destroy(sntl_mcache_t *mc)
+{
+  return;
+}
+