NOTE: Please read talloc_guide.txt for full documentation
Copyright (C) Andrew Tridgell 2004
+ Copyright (C) Stefan Metzmacher 2006
** NOTE! The following LGPL license applies to the talloc
** library. This does NOT imply that all of Samba is released
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
+ version 3 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with this library; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
inspired by http://swapped.cc/halloc/
*/
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#ifdef HAVE_SYS_TYPES_H
-#include <sys/types.h>
-#endif
-
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-
-#ifdef HAVE_STDARG_H
-#include <stdarg.h>
-#else
-#include <varargs.h>
+#ifdef _SAMBA_BUILD_
+#include "version.h"
+#if (SAMBA_VERSION_MAJOR<4)
+#include "includes.h"
+/* This is to circumvent SAMBA3's paranoid malloc checker. Here in this file
+ * we trust ourselves... */
+#ifdef malloc
+#undef malloc
#endif
-
-#ifdef HAVE_STDINT_H
-#include <stdint.h>
+#ifdef realloc
+#undef realloc
#endif
+#define _TALLOC_SAMBA3
+#endif /* (SAMBA_VERSION_MAJOR<4) */
+#endif /* _SAMBA_BUILD_ */
+#ifndef _TALLOC_SAMBA3
+#include "replace.h"
#include "talloc.h"
+#endif /* not _TALLOC_SAMBA3 */
/* use this to force every realloc to change the pointer, to stress test
code that might not cope */
#define TALLOC_MAGIC 0xe814ec70
#define TALLOC_FLAG_FREE 0x01
#define TALLOC_FLAG_LOOP 0x02
+#define TALLOC_FLAG_POOL 0x04 /* This is a talloc pool */
+#define TALLOC_FLAG_POOLMEM 0x08 /* This is allocated in a pool */
#define TALLOC_MAGIC_REFERENCE ((const char *)1)
/* by default we abort when given a bad pointer (such as when talloc_free() is called
#endif
#endif
+/* these macros gain us a few percent of speed on gcc */
+#if (__GNUC__ >= 3)
+/* the strange !! is to ensure that __builtin_expect() takes either 0 or 1
+ as its first argument */
+#define likely(x) __builtin_expect(!!(x), 1)
+#define unlikely(x) __builtin_expect(!!(x), 0)
+#else
+#define likely(x) x
+#define unlikely(x) x
+#endif
+
/* this null_context is only used if talloc_enable_leak_report() or
talloc_enable_leak_report_full() is called, otherwise it remains
NULL
*/
-static const void *null_context;
-static void *cleanup_context;
-
+static void *null_context;
+static void *autofree_context;
struct talloc_reference_handle {
struct talloc_reference_handle *next, *prev;
const char *name;
size_t size;
unsigned flags;
+
+ /*
+ * "pool" has dual use:
+ *
+ * For the talloc pool itself (i.e. TALLOC_FLAG_POOL is set), "pool"
+ * marks the end of the currently allocated area.
+ *
+ * For members of the pool (i.e. TALLOC_FLAG_POOLMEM is set), "pool"
+ * is a pointer to the struct talloc_chunk of the pool that it was
+ * allocated from. This way children can quickly find the pool to chew
+ * from.
+ */
+ void *pool;
};
/* 16 byte alignment seems to keep everyone happy */
#define TC_HDR_SIZE ((sizeof(struct talloc_chunk)+15)&~15)
#define TC_PTR_FROM_CHUNK(tc) ((void *)(TC_HDR_SIZE + (char*)tc))
+static void talloc_abort_double_free(void)
+{
+ TALLOC_ABORT("Bad talloc magic value - double free");
+}
+
+static void talloc_abort_unknown_value(void)
+{
+ TALLOC_ABORT("Bad talloc magic value - unknown value");
+}
+
/* panic if we get a bad magic value */
-static struct talloc_chunk *talloc_chunk_from_ptr(const void *ptr)
+static inline struct talloc_chunk *talloc_chunk_from_ptr(const void *ptr)
{
- const char *pp = ptr;
+ const char *pp = (const char *)ptr;
struct talloc_chunk *tc = discard_const_p(struct talloc_chunk, pp - TC_HDR_SIZE);
- if ((tc->flags & ~0xF) != TALLOC_MAGIC) {
- TALLOC_ABORT("Bad talloc magic value - unknown value");
- }
- if (tc->flags & TALLOC_FLAG_FREE) {
- TALLOC_ABORT("Bad talloc magic value - double free");
+ if (unlikely((tc->flags & (TALLOC_FLAG_FREE | ~0xF)) != TALLOC_MAGIC)) {
+ if (tc->flags & TALLOC_FLAG_FREE) {
+ talloc_abort_double_free();
+ } else {
+ talloc_abort_unknown_value();
+ }
}
return tc;
}
/*
return the parent chunk of a pointer
*/
-static struct talloc_chunk *talloc_parent_chunk(const void *ptr)
+static inline struct talloc_chunk *talloc_parent_chunk(const void *ptr)
{
- struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
+ struct talloc_chunk *tc;
+
+ if (unlikely(ptr == NULL)) {
+ return NULL;
+ }
+
+ tc = talloc_chunk_from_ptr(ptr);
while (tc->prev) tc=tc->prev;
+
return tc->parent;
}
return tc? TC_PTR_FROM_CHUNK(tc) : NULL;
}
+/*
+ find parents name
+*/
+const char *talloc_parent_name(const void *ptr)
+{
+ struct talloc_chunk *tc = talloc_parent_chunk(ptr);
+ return tc? tc->name : NULL;
+}
+
+/*
+ A pool carries an in-pool object count count in the first 16 bytes.
+ bytes. This is done to support talloc_steal() to a parent outside of the
+ pool. The count includes the pool itself, so a talloc_free() on a pool will
+ only destroy the pool if the count has dropped to zero. A talloc_free() of a
+ pool member will reduce the count, and eventually also call free(3) on the
+ pool memory.
+
+ The object count is not put into "struct talloc_chunk" because it is only
+ relevant for talloc pools and the alignment to 16 bytes would increase the
+ memory footprint of each talloc chunk by those 16 bytes.
+*/
+
+#define TALLOC_POOL_HDR_SIZE 16
+
+static unsigned int *talloc_pool_objectcount(struct talloc_chunk *tc)
+{
+ return (unsigned int *)((char *)tc + sizeof(struct talloc_chunk));
+}
+
+/*
+ Allocate from a pool
+*/
+
+static struct talloc_chunk *talloc_alloc_pool(struct talloc_chunk *parent,
+ size_t size)
+{
+ struct talloc_chunk *pool_ctx = NULL;
+ size_t space_left;
+ struct talloc_chunk *result;
+ size_t chunk_size;
+
+ if (parent == NULL) {
+ return NULL;
+ }
+
+ if (parent->flags & TALLOC_FLAG_POOL) {
+ pool_ctx = parent;
+ }
+ else if (parent->flags & TALLOC_FLAG_POOLMEM) {
+ pool_ctx = (struct talloc_chunk *)parent->pool;
+ }
+
+ if (pool_ctx == NULL) {
+ return NULL;
+ }
+
+ space_left = ((char *)pool_ctx + TC_HDR_SIZE + pool_ctx->size)
+ - ((char *)pool_ctx->pool);
+
+ /*
+ * Align size to 16 bytes
+ */
+ chunk_size = ((size + 15) & ~15);
+
+ if (space_left < chunk_size) {
+ return NULL;
+ }
+
+ result = (struct talloc_chunk *)pool_ctx->pool;
+
+#if defined(DEVELOPER) && defined(VALGRIND_MAKE_MEM_UNDEFINED)
+ VALGRIND_MAKE_MEM_UNDEFINED(result, size);
+#endif
+
+ pool_ctx->pool = (void *)((char *)result + chunk_size);
+
+ result->flags = TALLOC_MAGIC | TALLOC_FLAG_POOLMEM;
+ result->pool = pool_ctx;
+
+ *talloc_pool_objectcount(pool_ctx) += 1;
+
+ return result;
+}
+
/*
Allocate a bit of memory as a child of an existing pointer
*/
-void *_talloc(const void *context, size_t size)
+static inline void *__talloc(const void *context, size_t size)
{
- struct talloc_chunk *tc;
+ struct talloc_chunk *tc = NULL;
- if (context == NULL) {
+ if (unlikely(context == NULL)) {
context = null_context;
}
- if (size >= MAX_TALLOC_SIZE) {
+ if (unlikely(size >= MAX_TALLOC_SIZE)) {
return NULL;
}
- tc = malloc(TC_HDR_SIZE+size);
- if (tc == NULL) return NULL;
+ if (context != NULL) {
+ tc = talloc_alloc_pool(talloc_chunk_from_ptr(context),
+ TC_HDR_SIZE+size);
+ }
+
+ if (tc == NULL) {
+ tc = (struct talloc_chunk *)malloc(TC_HDR_SIZE+size);
+ if (unlikely(tc == NULL)) return NULL;
+ tc->flags = TALLOC_MAGIC;
+ tc->pool = NULL;
+ }
tc->size = size;
- tc->flags = TALLOC_MAGIC;
tc->destructor = NULL;
tc->child = NULL;
tc->name = NULL;
tc->refs = NULL;
- if (context) {
+ if (likely(context)) {
struct talloc_chunk *parent = talloc_chunk_from_ptr(context);
- tc->parent = parent;
-
if (parent->child) {
parent->child->parent = NULL;
+ tc->next = parent->child;
+ tc->next->prev = tc;
+ } else {
+ tc->next = NULL;
}
-
- _TLIST_ADD(parent->child, tc);
+ tc->parent = parent;
+ tc->prev = NULL;
+ parent->child = tc;
} else {
tc->next = tc->prev = tc->parent = NULL;
}
return TC_PTR_FROM_CHUNK(tc);
}
+/*
+ * Create a talloc pool
+ */
+
+void *talloc_pool(const void *context, size_t size)
+{
+ void *result = __talloc(context, size + TALLOC_POOL_HDR_SIZE);
+ struct talloc_chunk *tc;
+
+ if (unlikely(result == NULL)) {
+ return NULL;
+ }
+
+ tc = talloc_chunk_from_ptr(result);
+
+ tc->flags |= TALLOC_FLAG_POOL;
+ tc->pool = (char *)result + TALLOC_POOL_HDR_SIZE;
+
+ *talloc_pool_objectcount(tc) = 1;
+
+#if defined(DEVELOPER) && defined(VALGRIND_MAKE_MEM_NOACCESS)
+ VALGRIND_MAKE_MEM_NOACCESS(tc->pool, size);
+#endif
+
+ return result;
+}
/*
setup a destructor to be called on free of a pointer
/*
increase the reference count on a piece of memory.
*/
-void talloc_increase_ref_count(const void *ptr)
+int talloc_increase_ref_count(const void *ptr)
{
- talloc_reference(null_context, ptr);
+ if (unlikely(!talloc_reference(null_context, ptr))) {
+ return -1;
+ }
+ return 0;
}
/*
helper for talloc_reference()
+
+ this is referenced by a function pointer and should not be inline
*/
static int talloc_reference_destructor(struct talloc_reference_handle *handle)
{
return 0;
}
+/*
+ more efficient way to add a name to a pointer - the name must point to a
+ true string constant
+*/
+static inline void _talloc_set_name_const(const void *ptr, const char *name)
+{
+ struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
+ tc->name = name;
+}
+
+/*
+ internal talloc_named_const()
+*/
+static inline void *_talloc_named_const(const void *context, size_t size, const char *name)
+{
+ void *ptr;
+
+ ptr = __talloc(context, size);
+ if (unlikely(ptr == NULL)) {
+ return NULL;
+ }
+
+ _talloc_set_name_const(ptr, name);
+
+ return ptr;
+}
+
/*
make a secondary reference to a pointer, hanging off the given context.
the pointer remains valid until both the original caller and this given
same underlying data, and you want to be able to free the two instances separately,
and in either order
*/
-void *talloc_reference(const void *context, const void *ptr)
+void *_talloc_reference(const void *context, const void *ptr)
{
struct talloc_chunk *tc;
struct talloc_reference_handle *handle;
- if (ptr == NULL) return NULL;
+ if (unlikely(ptr == NULL)) return NULL;
tc = talloc_chunk_from_ptr(ptr);
- handle = talloc_named_const(context, sizeof(*handle), TALLOC_MAGIC_REFERENCE);
-
- if (handle == NULL) return NULL;
+ handle = (struct talloc_reference_handle *)_talloc_named_const(context,
+ sizeof(struct talloc_reference_handle),
+ TALLOC_MAGIC_REFERENCE);
+ if (unlikely(handle == NULL)) return NULL;
/* note that we hang the destructor off the handle, not the
main context as that allows the caller to still setup their
return handle->ptr;
}
+
+/*
+ internal talloc_free call
+*/
+static inline int _talloc_free(void *ptr)
+{
+ struct talloc_chunk *tc;
+
+ if (unlikely(ptr == NULL)) {
+ return -1;
+ }
+
+ tc = talloc_chunk_from_ptr(ptr);
+
+ if (unlikely(tc->refs)) {
+ int is_child;
+ /* check this is a reference from a child or grantchild
+ * back to it's parent or grantparent
+ *
+ * in that case we need to remove the reference and
+ * call another instance of talloc_free() on the current
+ * pointer.
+ */
+ is_child = talloc_is_parent(tc->refs, ptr);
+ _talloc_free(tc->refs);
+ if (is_child) {
+ return _talloc_free(ptr);
+ }
+ return -1;
+ }
+
+ if (unlikely(tc->flags & TALLOC_FLAG_LOOP)) {
+ /* we have a free loop - stop looping */
+ return 0;
+ }
+
+ if (unlikely(tc->destructor)) {
+ talloc_destructor_t d = tc->destructor;
+ if (d == (talloc_destructor_t)-1) {
+ return -1;
+ }
+ tc->destructor = (talloc_destructor_t)-1;
+ if (d(ptr) == -1) {
+ tc->destructor = d;
+ return -1;
+ }
+ tc->destructor = NULL;
+ }
+
+ if (tc->parent) {
+ _TLIST_REMOVE(tc->parent->child, tc);
+ if (tc->parent->child) {
+ tc->parent->child->parent = tc->parent;
+ }
+ } else {
+ if (tc->prev) tc->prev->next = tc->next;
+ if (tc->next) tc->next->prev = tc->prev;
+ }
+
+ tc->flags |= TALLOC_FLAG_LOOP;
+
+ while (tc->child) {
+ /* we need to work out who will own an abandoned child
+ if it cannot be freed. In priority order, the first
+ choice is owner of any remaining reference to this
+ pointer, the second choice is our parent, and the
+ final choice is the null context. */
+ void *child = TC_PTR_FROM_CHUNK(tc->child);
+ const void *new_parent = null_context;
+ if (unlikely(tc->child->refs)) {
+ struct talloc_chunk *p = talloc_parent_chunk(tc->child->refs);
+ if (p) new_parent = TC_PTR_FROM_CHUNK(p);
+ }
+ if (unlikely(_talloc_free(child) == -1)) {
+ if (new_parent == null_context) {
+ struct talloc_chunk *p = talloc_parent_chunk(ptr);
+ if (p) new_parent = TC_PTR_FROM_CHUNK(p);
+ }
+ talloc_steal(new_parent, child);
+ }
+ }
+
+ tc->flags |= TALLOC_FLAG_FREE;
+
+ if (tc->flags & (TALLOC_FLAG_POOL|TALLOC_FLAG_POOLMEM)) {
+ struct talloc_chunk *pool;
+ unsigned int *pool_object_count;
+
+ pool = (tc->flags & TALLOC_FLAG_POOL)
+ ? tc : (struct talloc_chunk *)tc->pool;
+
+ pool_object_count = talloc_pool_objectcount(pool);
+
+ if (*pool_object_count == 0) {
+ TALLOC_ABORT("Pool object count zero!");
+ }
+
+ *pool_object_count -= 1;
+
+ if (*pool_object_count == 0) {
+ free(pool);
+ }
+ }
+ else {
+ free(tc);
+ }
+ return 0;
+}
+
+/*
+ move a lump of memory from one talloc context to another return the
+ ptr on success, or NULL if it could not be transferred.
+ passing NULL as ptr will always return NULL with no side effects.
+*/
+void *_talloc_steal(const void *new_ctx, const void *ptr)
+{
+ struct talloc_chunk *tc, *new_tc;
+
+ if (unlikely(!ptr)) {
+ return NULL;
+ }
+
+ if (unlikely(new_ctx == NULL)) {
+ new_ctx = null_context;
+ }
+
+ tc = talloc_chunk_from_ptr(ptr);
+
+ if (unlikely(new_ctx == NULL)) {
+ if (tc->parent) {
+ _TLIST_REMOVE(tc->parent->child, tc);
+ if (tc->parent->child) {
+ tc->parent->child->parent = tc->parent;
+ }
+ } else {
+ if (tc->prev) tc->prev->next = tc->next;
+ if (tc->next) tc->next->prev = tc->prev;
+ }
+
+ tc->parent = tc->next = tc->prev = NULL;
+ return discard_const_p(void, ptr);
+ }
+
+ new_tc = talloc_chunk_from_ptr(new_ctx);
+
+ if (unlikely(tc == new_tc || tc->parent == new_tc)) {
+ return discard_const_p(void, ptr);
+ }
+
+ if (tc->parent) {
+ _TLIST_REMOVE(tc->parent->child, tc);
+ if (tc->parent->child) {
+ tc->parent->child->parent = tc->parent;
+ }
+ } else {
+ if (tc->prev) tc->prev->next = tc->next;
+ if (tc->next) tc->next->prev = tc->prev;
+ }
+
+ tc->parent = new_tc;
+ if (new_tc->child) new_tc->child->parent = NULL;
+ _TLIST_ADD(new_tc->child, tc);
+
+ return discard_const_p(void, ptr);
+}
+
+
+
/*
remove a secondary reference to a pointer. This undo's what
talloc_reference() has done. The context and pointer arguments
must match those given to a talloc_reference()
*/
-static int talloc_unreference(const void *context, const void *ptr)
+static inline int talloc_unreference(const void *context, const void *ptr)
{
struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
struct talloc_reference_handle *h;
- if (context == NULL) {
+ if (unlikely(context == NULL)) {
context = null_context;
}
return -1;
}
- return talloc_free(h);
+ return _talloc_free(h);
}
/*
tc_p = talloc_chunk_from_ptr(ptr);
if (tc_p->refs == NULL) {
- return talloc_free(ptr);
+ return _talloc_free(ptr);
}
new_p = talloc_parent_chunk(tc_p->refs);
/*
add a name to an existing pointer - va_list version
*/
-static const char *talloc_set_name_v(const void *ptr, const char *fmt, va_list ap) PRINTF_ATTRIBUTE(2,0);
+static inline const char *talloc_set_name_v(const void *ptr, const char *fmt, va_list ap) PRINTF_ATTRIBUTE(2,0);
-static const char *talloc_set_name_v(const void *ptr, const char *fmt, va_list ap)
+static inline const char *talloc_set_name_v(const void *ptr, const char *fmt, va_list ap)
{
struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
tc->name = talloc_vasprintf(ptr, fmt, ap);
- if (tc->name) {
- talloc_set_name_const(tc->name, ".name");
+ if (likely(tc->name)) {
+ _talloc_set_name_const(tc->name, ".name");
}
return tc->name;
}
return name;
}
-/*
- more efficient way to add a name to a pointer - the name must point to a
- true string constant
-*/
-void talloc_set_name_const(const void *ptr, const char *name)
-{
- struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
- tc->name = name;
-}
/*
create a named talloc pointer. Any talloc pointer can be named, and
void *ptr;
const char *name;
- ptr = _talloc(context, size);
- if (ptr == NULL) return NULL;
+ ptr = __talloc(context, size);
+ if (unlikely(ptr == NULL)) return NULL;
va_start(ap, fmt);
name = talloc_set_name_v(ptr, fmt, ap);
va_end(ap);
- if (name == NULL) {
- talloc_free(ptr);
- return NULL;
- }
-
- return ptr;
-}
-
-/*
- create a named talloc pointer. Any talloc pointer can be named, and
- talloc_named() operates just like talloc() except that it allows you
- to name the pointer.
-*/
-void *talloc_named_const(const void *context, size_t size, const char *name)
-{
- void *ptr;
-
- ptr = _talloc(context, size);
- if (ptr == NULL) {
+ if (unlikely(name == NULL)) {
+ _talloc_free(ptr);
return NULL;
}
- talloc_set_name_const(ptr, name);
-
return ptr;
}
const char *talloc_get_name(const void *ptr)
{
struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
- if (tc->name == TALLOC_MAGIC_REFERENCE) {
+ if (unlikely(tc->name == TALLOC_MAGIC_REFERENCE)) {
return ".reference";
}
- if (tc->name) {
+ if (likely(tc->name)) {
return tc->name;
}
return "UNNAMED";
void *talloc_check_name(const void *ptr, const char *name)
{
const char *pname;
- if (ptr == NULL) return NULL;
+ if (unlikely(ptr == NULL)) return NULL;
pname = talloc_get_name(ptr);
- if (pname == name || strcmp(pname, name) == 0) {
+ if (likely(pname == name || strcmp(pname, name) == 0)) {
return discard_const_p(void, ptr);
}
return NULL;
void *ptr;
const char *name;
- ptr = _talloc(NULL, 0);
- if (ptr == NULL) return NULL;
+ /*
+ * samba3 expects talloc_report_depth_cb(NULL, ...)
+ * reports all talloc'ed memory, so we need to enable
+ * null_tracking
+ */
+ talloc_enable_null_tracking();
+
+ ptr = __talloc(NULL, 0);
+ if (unlikely(ptr == NULL)) return NULL;
va_start(ap, fmt);
name = talloc_set_name_v(ptr, fmt, ap);
va_end(ap);
- if (name == NULL) {
- talloc_free(ptr);
+ if (unlikely(name == NULL)) {
+ _talloc_free(ptr);
return NULL;
}
{
struct talloc_chunk *tc;
- if (ptr == NULL) {
+ if (unlikely(ptr == NULL)) {
return;
}
final choice is the null context. */
void *child = TC_PTR_FROM_CHUNK(tc->child);
const void *new_parent = null_context;
- if (tc->child->refs) {
+ if (unlikely(tc->child->refs)) {
struct talloc_chunk *p = talloc_parent_chunk(tc->child->refs);
if (p) new_parent = TC_PTR_FROM_CHUNK(p);
}
- if (talloc_free(child) == -1) {
+ if (unlikely(_talloc_free(child) == -1)) {
if (new_parent == null_context) {
struct talloc_chunk *p = talloc_parent_chunk(ptr);
if (p) new_parent = TC_PTR_FROM_CHUNK(p);
talloc_steal(new_parent, child);
}
}
+
+ if ((tc->flags & TALLOC_FLAG_POOL)
+ && (*talloc_pool_objectcount(tc) == 1)) {
+ tc->pool = ((char *)tc + TC_HDR_SIZE + TALLOC_POOL_HDR_SIZE);
+#if defined(DEVELOPER) && defined(VALGRIND_MAKE_MEM_NOACCESS)
+ VALGRIND_MAKE_MEM_NOACCESS(
+ tc->pool, tc->size - TALLOC_POOL_HDR_SIZE);
+#endif
+ }
}
/*
- free a talloc pointer. This also frees all child pointers of this
- pointer recursively
-
- return 0 if the memory is actually freed, otherwise -1. The memory
- will not be freed if the ref_count is > 1 or the destructor (if
- any) returns non-zero
+ Allocate a bit of memory as a child of an existing pointer
*/
-int talloc_free(void *ptr)
+void *_talloc(const void *context, size_t size)
{
- struct talloc_chunk *tc;
- int old_errno;
-
- if (ptr == NULL) {
- return -1;
- }
-
- tc = talloc_chunk_from_ptr(ptr);
-
- if (tc->refs) {
- int is_child;
- /* check this is a reference from a child or grantchild
- * back to it's parent or grantparent
- *
- * in that case we need to remove the reference and
- * call another instance of talloc_free() on the current
- * pointer.
- */
- is_child = talloc_is_parent(tc->refs, ptr);
- talloc_free(tc->refs);
- if (is_child) {
- return talloc_free(ptr);
- }
- return -1;
- }
-
- if (tc->flags & TALLOC_FLAG_LOOP) {
- /* we have a free loop - stop looping */
- return 0;
- }
+ return __talloc(context, size);
+}
- if (tc->destructor) {
- talloc_destructor_t d = tc->destructor;
- if (d == (talloc_destructor_t)-1) {
- return -1;
- }
- tc->destructor = (talloc_destructor_t)-1;
- if (d(ptr) == -1) {
- tc->destructor = d;
- return -1;
- }
- tc->destructor = NULL;
- }
+/*
+ externally callable talloc_set_name_const()
+*/
+void talloc_set_name_const(const void *ptr, const char *name)
+{
+ _talloc_set_name_const(ptr, name);
+}
- if (tc->parent) {
- _TLIST_REMOVE(tc->parent->child, tc);
- if (tc->parent->child) {
- tc->parent->child->parent = tc->parent;
- }
- } else {
- if (tc->prev) tc->prev->next = tc->next;
- if (tc->next) tc->next->prev = tc->prev;
- }
+/*
+ create a named talloc pointer. Any talloc pointer can be named, and
+ talloc_named() operates just like talloc() except that it allows you
+ to name the pointer.
+*/
+void *talloc_named_const(const void *context, size_t size, const char *name)
+{
+ return _talloc_named_const(context, size, name);
+}
- tc->flags |= TALLOC_FLAG_LOOP;
- talloc_free_children(ptr);
+/*
+ free a talloc pointer. This also frees all child pointers of this
+ pointer recursively
- tc->flags |= TALLOC_FLAG_FREE;
- old_errno = errno;
- free(tc);
- errno = old_errno;
- return 0;
+ return 0 if the memory is actually freed, otherwise -1. The memory
+ will not be freed if the ref_count is > 1 or the destructor (if
+ any) returns non-zero
+*/
+int talloc_free(void *ptr)
+{
+ return _talloc_free(ptr);
}
{
struct talloc_chunk *tc;
void *new_ptr;
+ bool malloced = false;
/* size zero is equivalent to free() */
- if (size == 0) {
- talloc_free(ptr);
+ if (unlikely(size == 0)) {
+ _talloc_free(ptr);
return NULL;
}
- if (size >= MAX_TALLOC_SIZE) {
+ if (unlikely(size >= MAX_TALLOC_SIZE)) {
return NULL;
}
- /* realloc(NULL) is equavalent to malloc() */
+ /* realloc(NULL) is equivalent to malloc() */
if (ptr == NULL) {
- return talloc_named_const(context, size, name);
+ return _talloc_named_const(context, size, name);
}
tc = talloc_chunk_from_ptr(ptr);
/* don't allow realloc on referenced pointers */
- if (tc->refs) {
+ if (unlikely(tc->refs)) {
return NULL;
}
+ /* don't shrink if we have less than 1k to gain */
+ if ((size < tc->size) && ((tc->size - size) < 1024)) {
+ tc->size = size;
+ return ptr;
+ }
+
/* by resetting magic we catch users of the old memory */
tc->flags |= TALLOC_FLAG_FREE;
free(tc);
}
#else
- new_ptr = realloc(tc, size + TC_HDR_SIZE);
+ if (tc->flags & TALLOC_FLAG_POOLMEM) {
+
+ new_ptr = talloc_alloc_pool(tc, size + TC_HDR_SIZE);
+ *talloc_pool_objectcount((struct talloc_chunk *)
+ (tc->pool)) -= 1;
+
+ if (new_ptr == NULL) {
+ new_ptr = malloc(TC_HDR_SIZE+size);
+ malloced = true;
+ }
+
+ if (new_ptr) {
+ memcpy(new_ptr, tc, MIN(tc->size,size) + TC_HDR_SIZE);
+ }
+ }
+ else {
+ new_ptr = realloc(tc, size + TC_HDR_SIZE);
+ }
#endif
- if (!new_ptr) {
+ if (unlikely(!new_ptr)) {
tc->flags &= ~TALLOC_FLAG_FREE;
return NULL;
}
- tc = new_ptr;
- tc->flags &= ~TALLOC_FLAG_FREE;
+ tc = (struct talloc_chunk *)new_ptr;
+ tc->flags &= ~TALLOC_FLAG_FREE;
+ if (malloced) {
+ tc->flags &= ~TALLOC_FLAG_POOLMEM;
+ }
if (tc->parent) {
- tc->parent->child = new_ptr;
+ tc->parent->child = tc;
}
if (tc->child) {
- tc->child->parent = new_ptr;
+ tc->child->parent = tc;
}
if (tc->prev) {
}
tc->size = size;
- talloc_set_name_const(TC_PTR_FROM_CHUNK(tc), name);
+ _talloc_set_name_const(TC_PTR_FROM_CHUNK(tc), name);
return TC_PTR_FROM_CHUNK(tc);
}
-/*
- move a lump of memory from one talloc context to another return the
- ptr on success, or NULL if it could not be transferred.
- passing NULL as ptr will always return NULL with no side effects.
+/*
+ a wrapper around talloc_steal() for situations where you are moving a pointer
+ between two structures, and want the old pointer to be set to NULL
*/
-void *_talloc_steal(const void *new_ctx, const void *ptr)
+void *_talloc_move(const void *new_ctx, const void *_pptr)
{
- struct talloc_chunk *tc, *new_tc;
-
- if (!ptr) {
- return NULL;
- }
-
- if (new_ctx == NULL) {
- new_ctx = null_context;
- }
-
- tc = talloc_chunk_from_ptr(ptr);
-
- if (new_ctx == NULL) {
- if (tc->parent) {
- _TLIST_REMOVE(tc->parent->child, tc);
- if (tc->parent->child) {
- tc->parent->child->parent = tc->parent;
- }
- } else {
- if (tc->prev) tc->prev->next = tc->next;
- if (tc->next) tc->next->prev = tc->prev;
- }
-
- tc->parent = tc->next = tc->prev = NULL;
- return discard_const_p(void, ptr);
- }
-
- new_tc = talloc_chunk_from_ptr(new_ctx);
-
- if (tc == new_tc || tc->parent == new_tc) {
- return discard_const_p(void, ptr);
- }
-
- if (tc->parent) {
- _TLIST_REMOVE(tc->parent->child, tc);
- if (tc->parent->child) {
- tc->parent->child->parent = tc->parent;
- }
- } else {
- if (tc->prev) tc->prev->next = tc->next;
- if (tc->next) tc->next->prev = tc->prev;
- }
-
- tc->parent = new_tc;
- if (new_tc->child) new_tc->child->parent = NULL;
- _TLIST_ADD(new_tc->child, tc);
-
- return discard_const_p(void, ptr);
+ const void **pptr = discard_const_p(const void *,_pptr);
+ void *ret = _talloc_steal(new_ctx, *pptr);
+ (*pptr) = NULL;
+ return ret;
}
/*
return the total size of a talloc pool (subtree)
*/
-off_t talloc_total_size(const void *ptr)
+size_t talloc_total_size(const void *ptr)
{
- off_t total = 0;
+ size_t total = 0;
struct talloc_chunk *c, *tc;
-
+
if (ptr == NULL) {
ptr = null_context;
}
/*
return the total number of blocks in a talloc pool (subtree)
*/
-off_t talloc_total_blocks(const void *ptr)
+size_t talloc_total_blocks(const void *ptr)
{
- off_t total = 0;
+ size_t total = 0;
struct talloc_chunk *c, *tc = talloc_chunk_from_ptr(ptr);
if (tc->flags & TALLOC_FLAG_LOOP) {
/*
return the number of external references to a pointer
*/
-static int talloc_reference_count(const void *ptr)
+size_t talloc_reference_count(const void *ptr)
{
struct talloc_chunk *tc = talloc_chunk_from_ptr(ptr);
struct talloc_reference_handle *h;
- int ret = 0;
+ size_t ret = 0;
for (h=tc->refs;h;h=h->next) {
ret++;
/*
report on memory usage by all children of a pointer, giving a full tree view
*/
-void talloc_report_depth(const void *ptr, FILE *f, int depth)
+void talloc_report_depth_cb(const void *ptr, int depth, int max_depth,
+ void (*callback)(const void *ptr,
+ int depth, int max_depth,
+ int is_ref,
+ void *private_data),
+ void *private_data)
{
- struct talloc_chunk *c, *tc = talloc_chunk_from_ptr(ptr);
+ struct talloc_chunk *c, *tc;
+
+ if (ptr == NULL) {
+ ptr = null_context;
+ }
+ if (ptr == NULL) return;
+
+ tc = talloc_chunk_from_ptr(ptr);
if (tc->flags & TALLOC_FLAG_LOOP) {
return;
}
- tc->flags |= TALLOC_FLAG_LOOP;
+ callback(ptr, depth, max_depth, 0, private_data);
+
+ if (max_depth >= 0 && depth >= max_depth) {
+ return;
+ }
+ tc->flags |= TALLOC_FLAG_LOOP;
for (c=tc->child;c;c=c->next) {
if (c->name == TALLOC_MAGIC_REFERENCE) {
- struct talloc_reference_handle *handle = TC_PTR_FROM_CHUNK(c);
- const char *name2 = talloc_get_name(handle->ptr);
- fprintf(f, "%*sreference to: %s\n", depth*4, "", name2);
+ struct talloc_reference_handle *h = (struct talloc_reference_handle *)TC_PTR_FROM_CHUNK(c);
+ callback(h->ptr, depth + 1, max_depth, 1, private_data);
} else {
- const char *name = talloc_get_name(TC_PTR_FROM_CHUNK(c));
- fprintf(f, "%*s%-30s contains %6lu bytes in %3lu blocks (ref %d)\n",
- depth*4, "",
- name,
- (unsigned long)talloc_total_size(TC_PTR_FROM_CHUNK(c)),
- (unsigned long)talloc_total_blocks(TC_PTR_FROM_CHUNK(c)),
- talloc_reference_count(TC_PTR_FROM_CHUNK(c)));
- talloc_report_depth(TC_PTR_FROM_CHUNK(c), f, depth+1);
+ talloc_report_depth_cb(TC_PTR_FROM_CHUNK(c), depth + 1, max_depth, callback, private_data);
}
}
tc->flags &= ~TALLOC_FLAG_LOOP;
}
-/*
- report on memory usage by all children of a pointer, giving a full tree view
-*/
-void talloc_report_full(const void *ptr, FILE *f)
+static void talloc_report_depth_FILE_helper(const void *ptr, int depth, int max_depth, int is_ref, void *_f)
{
- if (ptr == NULL) {
- ptr = null_context;
+ const char *name = talloc_get_name(ptr);
+ FILE *f = (FILE *)_f;
+
+ if (is_ref) {
+ fprintf(f, "%*sreference to: %s\n", depth*4, "", name);
+ return;
+ }
+
+ if (depth == 0) {
+ fprintf(f,"%stalloc report on '%s' (total %6lu bytes in %3lu blocks)\n",
+ (max_depth < 0 ? "full " :""), name,
+ (unsigned long)talloc_total_size(ptr),
+ (unsigned long)talloc_total_blocks(ptr));
+ return;
}
- if (ptr == NULL) return;
- fprintf(f,"full talloc report on '%s' (total %lu bytes in %lu blocks)\n",
- talloc_get_name(ptr),
+ fprintf(f, "%*s%-30s contains %6lu bytes in %3lu blocks (ref %d) %p\n",
+ depth*4, "",
+ name,
(unsigned long)talloc_total_size(ptr),
- (unsigned long)talloc_total_blocks(ptr));
+ (unsigned long)talloc_total_blocks(ptr),
+ (int)talloc_reference_count(ptr), ptr);
+
+#if 0
+ fprintf(f, "content: ");
+ if (talloc_total_size(ptr)) {
+ int tot = talloc_total_size(ptr);
+ int i;
+
+ for (i = 0; i < tot; i++) {
+ if ((((char *)ptr)[i] > 31) && (((char *)ptr)[i] < 126)) {
+ fprintf(f, "%c", ((char *)ptr)[i]);
+ } else {
+ fprintf(f, "~%02x", ((char *)ptr)[i]);
+ }
+ }
+ }
+ fprintf(f, "\n");
+#endif
+}
- talloc_report_depth(ptr, f, 1);
+/*
+ report on memory usage by all children of a pointer, giving a full tree view
+*/
+void talloc_report_depth_file(const void *ptr, int depth, int max_depth, FILE *f)
+{
+ talloc_report_depth_cb(ptr, depth, max_depth, talloc_report_depth_FILE_helper, f);
fflush(f);
}
+/*
+ report on memory usage by all children of a pointer, giving a full tree view
+*/
+void talloc_report_full(const void *ptr, FILE *f)
+{
+ talloc_report_depth_file(ptr, 0, -1, f);
+}
+
/*
report on memory usage by all children of a pointer
*/
void talloc_report(const void *ptr, FILE *f)
{
- struct talloc_chunk *c, *tc;
-
- if (ptr == NULL) {
- ptr = null_context;
- }
- if (ptr == NULL) return;
-
- fprintf(f,"talloc report on '%s' (total %lu bytes in %lu blocks)\n",
- talloc_get_name(ptr),
- (unsigned long)talloc_total_size(ptr),
- (unsigned long)talloc_total_blocks(ptr));
-
- tc = talloc_chunk_from_ptr(ptr);
-
- for (c=tc->child;c;c=c->next) {
- fprintf(f, "\t%-30s contains %6lu bytes in %3lu blocks\n",
- talloc_get_name(TC_PTR_FROM_CHUNK(c)),
- (unsigned long)talloc_total_size(TC_PTR_FROM_CHUNK(c)),
- (unsigned long)talloc_total_blocks(TC_PTR_FROM_CHUNK(c)));
- }
- fflush(f);
+ talloc_report_depth_file(ptr, 0, 1, f);
}
/*
void talloc_enable_null_tracking(void)
{
if (null_context == NULL) {
- null_context = talloc_named_const(NULL, 0, "null_context");
+ null_context = _talloc_named_const(NULL, 0, "null_context");
}
}
+/*
+ disable tracking of the NULL context
+*/
+void talloc_disable_null_tracking(void)
+{
+ _talloc_free(null_context);
+ null_context = NULL;
+}
+
/*
enable leak reporting on exit
*/
*/
void *_talloc_zero(const void *ctx, size_t size, const char *name)
{
- void *p = talloc_named_const(ctx, size, name);
+ void *p = _talloc_named_const(ctx, size, name);
if (p) {
memset(p, '\0', size);
return p;
}
-
/*
memdup with a talloc.
*/
void *_talloc_memdup(const void *t, const void *p, size_t size, const char *name)
{
- void *newp = talloc_named_const(t, size, name);
+ void *newp = _talloc_named_const(t, size, name);
- if (newp) {
+ if (likely(newp)) {
memcpy(newp, p, size);
}
return newp;
}
+static inline char *__talloc_strlendup(const void *t, const char *p, size_t len)
+{
+ char *ret;
+
+ ret = (char *)__talloc(t, len + 1);
+ if (unlikely(!ret)) return NULL;
+
+ memcpy(ret, p, len);
+ ret[len] = 0;
+
+ _talloc_set_name_const(ret, ret);
+ return ret;
+}
+
/*
- strdup with a talloc
+ strdup with a talloc
*/
char *talloc_strdup(const void *t, const char *p)
+{
+ if (unlikely(!p)) return NULL;
+ return __talloc_strlendup(t, p, strlen(p));
+}
+
+/*
+ strndup with a talloc
+*/
+char *talloc_strndup(const void *t, const char *p, size_t n)
+{
+ if (unlikely(!p)) return NULL;
+ return __talloc_strlendup(t, p, strnlen(p, n));
+}
+
+static inline char *__talloc_strlendup_append(char *s, size_t slen,
+ const char *a, size_t alen)
{
char *ret;
- if (!p) {
- return NULL;
+
+ ret = talloc_realloc(NULL, s, char, slen + alen + 1);
+ if (unlikely(!ret)) return NULL;
+
+ /* append the string and the trailing \0 */
+ memcpy(&ret[slen], a, alen);
+ ret[slen+alen] = 0;
+
+ _talloc_set_name_const(ret, ret);
+ return ret;
+}
+
+/*
+ * Appends at the end of the string.
+ */
+char *talloc_strdup_append(char *s, const char *a)
+{
+ if (unlikely(!s)) {
+ return talloc_strdup(NULL, a);
}
- ret = talloc_memdup(t, p, strlen(p) + 1);
- if (ret) {
- talloc_set_name_const(ret, ret);
+
+ if (unlikely(!a)) {
+ return s;
}
- return ret;
+
+ return __talloc_strlendup_append(s, strlen(s), a, strlen(a));
}
/*
- append to a talloced string
-*/
-char *talloc_append_string(const void *t, char *orig, const char *append)
+ * Appends at the end of the talloc'ed buffer,
+ * not the end of the string.
+ */
+char *talloc_strdup_append_buffer(char *s, const char *a)
{
- char *ret;
- size_t olen = strlen(orig);
- size_t alenz;
+ size_t slen;
- if (!append)
- return orig;
+ if (unlikely(!s)) {
+ return talloc_strdup(NULL, a);
+ }
- alenz = strlen(append) + 1;
+ if (unlikely(!a)) {
+ return s;
+ }
- ret = talloc_realloc(t, orig, char, olen + alenz);
- if (!ret)
- return NULL;
+ slen = talloc_get_size(s);
+ if (likely(slen > 0)) {
+ slen--;
+ }
- /* append the string with the trailing \0 */
- memcpy(&ret[olen], append, alenz);
+ return __talloc_strlendup_append(s, slen, a, strlen(a));
+}
- return ret;
+/*
+ * Appends at the end of the string.
+ */
+char *talloc_strndup_append(char *s, const char *a, size_t n)
+{
+ if (unlikely(!s)) {
+ return talloc_strdup(NULL, a);
+ }
+
+ if (unlikely(!a)) {
+ return s;
+ }
+
+ return __talloc_strlendup_append(s, strlen(s), a, strnlen(a, n));
}
/*
- strndup with a talloc
-*/
-char *talloc_strndup(const void *t, const char *p, size_t n)
+ * Appends at the end of the talloc'ed buffer,
+ * not the end of the string.
+ */
+char *talloc_strndup_append_buffer(char *s, const char *a, size_t n)
{
- size_t len;
- char *ret;
+ size_t slen;
- for (len=0; len<n && p[len]; len++) ;
+ if (unlikely(!s)) {
+ return talloc_strdup(NULL, a);
+ }
- ret = _talloc(t, len + 1);
- if (!ret) { return NULL; }
- memcpy(ret, p, len);
- ret[len] = 0;
- talloc_set_name_const(ret, ret);
- return ret;
+ if (unlikely(!a)) {
+ return s;
+ }
+
+ slen = talloc_get_size(s);
+ if (likely(slen > 0)) {
+ slen--;
+ }
+
+ return __talloc_strlendup_append(s, slen, a, strnlen(a, n));
}
#ifndef HAVE_VA_COPY
#endif
char *talloc_vasprintf(const void *t, const char *fmt, va_list ap)
-{
+{
int len;
char *ret;
va_list ap2;
char c;
-
- va_copy(ap2, ap);
/* this call looks strange, but it makes it work on older solaris boxes */
- if ((len = vsnprintf(&c, 1, fmt, ap2)) < 0) {
+ va_copy(ap2, ap);
+ len = vsnprintf(&c, 1, fmt, ap2);
+ va_end(ap2);
+ if (unlikely(len < 0)) {
return NULL;
}
- ret = _talloc(t, len+1);
- if (ret) {
- va_copy(ap2, ap);
- vsnprintf(ret, len+1, fmt, ap2);
- talloc_set_name_const(ret, ret);
- }
+ ret = (char *)__talloc(t, len+1);
+ if (unlikely(!ret)) return NULL;
+
+ va_copy(ap2, ap);
+ vsnprintf(ret, len+1, fmt, ap2);
+ va_end(ap2);
+ _talloc_set_name_const(ret, ret);
return ret;
}
return ret;
}
+static inline char *__talloc_vaslenprintf_append(char *s, size_t slen,
+ const char *fmt, va_list ap)
+ PRINTF_ATTRIBUTE(3,0);
-/**
- * Realloc @p s to append the formatted result of @p fmt and @p ap,
- * and return @p s, which may have moved. Good for gradually
- * accumulating output into a string buffer.
- **/
-char *talloc_vasprintf_append(char *s, const char *fmt, va_list ap)
-{
- struct talloc_chunk *tc;
- int len, s_len;
+static inline char *__talloc_vaslenprintf_append(char *s, size_t slen,
+ const char *fmt, va_list ap)
+{
+ ssize_t alen;
va_list ap2;
char c;
- if (s == NULL) {
- return talloc_vasprintf(NULL, fmt, ap);
- }
-
- tc = talloc_chunk_from_ptr(s);
-
va_copy(ap2, ap);
+ alen = vsnprintf(&c, 1, fmt, ap2);
+ va_end(ap2);
- s_len = tc->size - 1;
- if ((len = vsnprintf(&c, 1, fmt, ap2)) <= 0) {
+ if (alen <= 0) {
/* Either the vsnprintf failed or the format resulted in
* no characters being formatted. In the former case, we
* ought to return NULL, in the latter we ought to return
- * the original string. Most current callers of this
+ * the original string. Most current callers of this
* function expect it to never return NULL.
*/
return s;
}
- s = talloc_realloc(NULL, s, char, s_len + len+1);
+ s = talloc_realloc(NULL, s, char, slen + alen + 1);
if (!s) return NULL;
va_copy(ap2, ap);
+ vsnprintf(s + slen, alen + 1, fmt, ap2);
+ va_end(ap2);
- vsnprintf(s+s_len, len+1, fmt, ap2);
- talloc_set_name_const(s, s);
-
+ _talloc_set_name_const(s, s);
return s;
}
+/**
+ * Realloc @p s to append the formatted result of @p fmt and @p ap,
+ * and return @p s, which may have moved. Good for gradually
+ * accumulating output into a string buffer. Appends at the end
+ * of the string.
+ **/
+char *talloc_vasprintf_append(char *s, const char *fmt, va_list ap)
+{
+ if (unlikely(!s)) {
+ return talloc_vasprintf(NULL, fmt, ap);
+ }
+
+ return __talloc_vaslenprintf_append(s, strlen(s), fmt, ap);
+}
+
+/**
+ * Realloc @p s to append the formatted result of @p fmt and @p ap,
+ * and return @p s, which may have moved. Always appends at the
+ * end of the talloc'ed buffer, not the end of the string.
+ **/
+char *talloc_vasprintf_append_buffer(char *s, const char *fmt, va_list ap)
+{
+ size_t slen;
+
+ if (unlikely(!s)) {
+ return talloc_vasprintf(NULL, fmt, ap);
+ }
+
+ slen = talloc_get_size(s);
+ if (likely(slen > 0)) {
+ slen--;
+ }
+
+ return __talloc_vaslenprintf_append(s, slen, fmt, ap);
+}
+
/*
Realloc @p s to append the formatted result of @p fmt and return @p
s, which may have moved. Good for gradually accumulating output
return s;
}
+/*
+ Realloc @p s to append the formatted result of @p fmt and return @p
+ s, which may have moved. Good for gradually accumulating output
+ into a buffer.
+ */
+char *talloc_asprintf_append_buffer(char *s, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ s = talloc_vasprintf_append_buffer(s, fmt, ap);
+ va_end(ap);
+ return s;
+}
+
/*
alloc an array, checking for integer overflow in the array size
*/
if (count >= MAX_TALLOC_SIZE/el_size) {
return NULL;
}
- return talloc_named_const(ctx, el_size * count, name);
+ return _talloc_named_const(ctx, el_size * count, name);
}
/*
return _talloc_zero(ctx, el_size * count, name);
}
-
/*
realloc an array, checking for integer overflow in the array size
*/
}
+static int talloc_autofree_destructor(void *ptr)
+{
+ autofree_context = NULL;
+ return 0;
+}
+
static void talloc_autofree(void)
{
- talloc_free(cleanup_context);
- cleanup_context = NULL;
+ _talloc_free(autofree_context);
}
/*
*/
void *talloc_autofree_context(void)
{
- if (cleanup_context == NULL) {
- cleanup_context = talloc_named_const(NULL, 0, "autofree_context");
+ if (autofree_context == NULL) {
+ autofree_context = _talloc_named_const(NULL, 0, "autofree_context");
+ talloc_set_destructor(autofree_context, talloc_autofree_destructor);
atexit(talloc_autofree);
}
- return cleanup_context;
+ return autofree_context;
}
size_t talloc_get_size(const void *context)
tc = tc->parent;
}
}
+ fflush(file);
}
/*
return 1 if ptr is a parent of context
*/
-int talloc_is_parent(const void *context, const char *ptr)
+int talloc_is_parent(const void *context, const void *ptr)
{
struct talloc_chunk *tc;
git.samba.org / samba.git / blobdiff