#define INT_MAX 0x7FFFFFFF
#endif
+#if 0
+#define W32_MEM_LIMIT 200000000
+#endif
+
+#ifdef W32_MEM_LIMIT
+static LONG mem_used = 0;
+#endif
+
/**
* Allocate memory. Checks the return value, aborts if no more
* memory is available.
* this function (or GNUNET_malloc) to allocate more than several MB
* of memory, if you are possibly needing a very large chunk use
* GNUNET_xmalloc_unchecked_ instead.
- * @param filename where in the code was the call to GNUNET_array_grow
- * @param linenumber where in the code was the call to GNUNET_array_grow
+ * @param filename where in the code was the call to GNUNET_malloc
+ * @param linenumber where in the code was the call to GNUNET_malloc
* @return pointer to size bytes of memory
*/
void *
GNUNET_xmalloc_ (size_t size, const char *filename, int linenumber)
{
+ void *ret;
/* As a security precaution, we generally do not allow very large
allocations using the default 'GNUNET_malloc' macro */
GNUNET_assert_at (size <= GNUNET_MAX_MALLOC_CHECKED, filename, linenumber);
- return GNUNET_xmalloc_unchecked_ (size, filename, linenumber);
+ ret = GNUNET_xmalloc_unchecked_ (size, filename, linenumber);
+ if (ret == NULL)
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "malloc");
+ abort ();
+ }
+ return ret;
+}
+
+
+/**
+ * Allocate and initialize memory. Checks the return value, aborts if no more
+ * memory is available. Don't use GNUNET_xmemdup_ directly. Use the
+ * GNUNET_memdup macro.
+ *
+ * @param buf buffer to initialize from (must contain size bytes)
+ * @param size number of bytes to allocate
+ * @param filename where is this call being made (for debugging)
+ * @param linenumber line where this call is being made (for debugging)
+ * @return allocated memory, never NULL
+ */
+void *GNUNET_xmemdup_ (const void *buf, size_t size, const char *filename, int linenumber)
+{
+ void *ret;
+ /* As a security precaution, we generally do not allow very large
+ allocations here */
+ GNUNET_assert_at (size <= GNUNET_MAX_MALLOC_CHECKED, filename, linenumber);
+#ifdef W32_MEM_LIMIT
+ size += sizeof (size_t);
+ if (mem_used + size > W32_MEM_LIMIT)
+ return NULL;
+#endif
+ GNUNET_assert_at (size < INT_MAX, filename, linenumber);
+ ret = malloc (size);
+ if (ret == NULL)
+ {
+ GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "malloc");
+ abort ();
+ }
+#ifdef W32_MEM_LIMIT
+ *((size_t *) ret) = size;
+ ret = &((size_t *) ret)[1];
+ mem_used += size;
+#endif
+ memcpy (ret, buf, size);
+ return ret;
}
+
+
+/**
+ * Wrapper around malloc. Allocates size bytes of memory.
+ * The memory will be zero'ed out.
+ *
+ * @param size the number of bytes to allocate
+ * @param filename where in the code was the call to GNUNET_malloc_large
+ * @param linenumber where in the code was the call to GNUNET_malloc_large
+ * @return pointer to size bytes of memory, NULL if we do not have enough memory
+ */
void *
GNUNET_xmalloc_unchecked_ (size_t size, const char *filename, int linenumber)
{
void *result;
+#ifdef W32_MEM_LIMIT
+ size += sizeof (size_t);
+ if (mem_used + size > W32_MEM_LIMIT)
+ return NULL;
+#endif
+
GNUNET_assert_at (size < INT_MAX, filename, linenumber);
result = malloc (size);
if (result == NULL)
- {
- GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "malloc");
- abort ();
- }
+ return NULL;
memset (result, 0, size);
+
+#ifdef W32_MEM_LIMIT
+ *((size_t *) result) = size;
+ result = &((size_t *) result)[1];
+ mem_used += size;
+#endif
+
return result;
}
+
/**
* Reallocate memory. Checks the return value, aborts if no more
* memory is available.
*/
void *
GNUNET_xrealloc_ (void *ptr,
- const size_t n, const char *filename, int linenumber)
+ size_t n,
+ const char *filename, int linenumber)
{
+#ifdef W32_MEM_LIMIT
+ n += sizeof (size_t);
+ ptr = &((size_t *) ptr)[-1];
+ mem_used = mem_used - *((size_t *) ptr) + n;
+#endif
ptr = realloc (ptr, n);
if (!ptr)
{
GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "realloc");
abort ();
}
+#ifdef W32_MEM_LIMIT
+ ptr = &((size_t *) ptr)[1];
+#endif
return ptr;
}
+
/**
* Free memory. Merely a wrapper for the case that we
* want to keep track of allocations.
GNUNET_xfree_ (void *ptr, const char *filename, int linenumber)
{
GNUNET_assert_at (ptr != NULL, filename, linenumber);
+#ifdef W32_MEM_LIMIT
+ ptr = &((size_t *) ptr)[-1];
+ mem_used -= *((size_t *) ptr);
+#endif
free (ptr);
}
* Dup a string (same semantics as strdup).
*
* @param str the string to dup
- * @param filename where in the code was the call to GNUNET_array_grow
- * @param linenumber where in the code was the call to GNUNET_array_grow
+ * @param filename where in the code was the call to GNUNET_strdup
+ * @param linenumber where in the code was the call to GNUNET_strdup
* @return strdup(str)
*/
char *
return ret;
}
-
/* end of common_allocation.c */