release v2.2.0

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Develop
 
+## v2.2.0
+
 - Rework library CMake with removed INTERFACE type
 - Add `LWMEM_CFG_FULL` to allow control build configuration of the library
 - Implement support for simple (no realloc, no free, grow-only malloc) allocation mechanism

README.md

@@ -13,6 +13,7 @@
 * Supports embedded applications with fragmented memories
 * Supports automotive applications
 * Supports advanced free/realloc algorithms to optimize memory usage
+* **Since v2.2.0** Supports light implementation with allocation only
 * Operating system ready, thread-safe API
 * C++ wrapper functions
 * User friendly MIT license

docs/index.rst

@@ -25,6 +25,7 @@ Features
 * Supports embedded applications with fragmented memories
 * Supports automotive applications
 * Supports advanced free/realloc algorithms to optimize memory usage
+* **Since v2.2.0** Supports light implementation with allocation only
 * Operating system ready, thread-safe API
 * C++ wrapper functions
 * User friendly MIT license

docs/user-manual/index.rst

@@ -9,4 +9,5 @@ User manual
     how-it-works
     instances
     realloc-algorithm
+    light-version
     thread-safety

docs/user-manual/light-version.rst

@@ -0,0 +1,19 @@
+.. _light_version:
+
+LwMEM light implementation
+==========================
+
+When system is super memory constrained or when system only requires memory allocation at initialization stage,
+it is possible to put the library into *light* mode by controlling the :c:macro:`LWMEM_CFG_FULL` user configuration option
+
+When *full* mode is disabled, user must be aware of some contraints:
+
+* It is only possible to allocate memory (no free, no realloc)
+* It is only possible to use one (``1``) memory region. When assigning the memory with more than one region, function will return an error.
+
+.. tip::
+    Light mode is useful for opaque types that are returned to user and must be allocated on the heap.
+    These are typically allocated at initialization stage and never freed during program execution.
+
+.. toctree::
+    :maxdepth: 2

library.json

@@ -1,6 +1,6 @@
 {
     "name": "LwMEM",
-    "version": "2.1.0",
+    "version": "2.2.0",
     "description": "Lightweight dynamic memory manager optimized for embedded systems",
     "keywords": "lwmem, memory, dynamic, heap, malloc, calloc, realloc, free, lightweight, manager, embedded, stm32, win32",
     "repository": {

lwmem/src/include/lwmem/lwmem.h

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #ifndef LWMEM_HDR_H
 #define LWMEM_HDR_H
@@ -125,6 +125,7 @@ size_t lwmem_get_size_ex(lwmem_t* lwobj, void* ptr);
 #endif /* LWMEM_CFG_FULL || __DOXYGEN__ */
 #if LWMEM_CFG_ENABLE_STATS || __DOXYGEN__
 void lwmem_get_stats_ex(lwmem_t* lwobj, lwmem_stats_t* stats);
+void lwmem_get_size(lwmem_stats_t* stats);
 #endif /* LWMEM_CFG_ENABLE_STATS || __DOXYGEN__ */
 
 size_t lwmem_assignmem(const lwmem_region_t* regions);
@@ -137,20 +138,8 @@ int lwmem_realloc_s(void** ptr2ptr, size_t size);
 void lwmem_free(void* ptr);
 void lwmem_free_s(void** ptr2ptr);
 size_t lwmem_get_size(void* ptr);
-
 #endif /* LWMEM_CFG_FULL || __DOXYGEN__ */
 
-#if LWMEM_CFG_ENABLE_STATS || __DOXYGEN__
-
-/**
- * \note            This is a wrapper for \ref lwmem_get_stats_ex function.
- *                      It operates in default LwMEM instance
- * \param[in]       ptr: Pointer to lwmem_stats_t to store result
- */
-#define lwmem_get_stats(stats) lwmem_get_stats_ex(NULL, (stats))
-
-#endif /* LWMEM_CFG_ENABLE_STATS || __DOXYGEN__ */
-
 #if defined(LWMEM_DEV) && !__DOXYGEN__
 unsigned char lwmem_debug_create_regions(lwmem_region_t** regs_out, size_t count, size_t size);
 void lwmem_debug_save_state(void);

lwmem/src/include/lwmem/lwmem.hpp

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #ifndef LWMEM_HDR_HPP
 #define LWMEM_HDR_HPP

lwmem/src/include/lwmem/lwmem_opt.h

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #ifndef LWMEM_OPT_HDR_H
 #define LWMEM_OPT_HDR_H
@@ -89,7 +89,7 @@ extern "C" {
  * \brief           Enables `1` or disables `0` full memory management support.
  * 
  * When enabled (default config), library supports allocation, reallocation and freeing of the memory.
- *  - Memory allocation and [c]allocation
+ *  - Memory [c]allocation
  *  - Memory reallocation
  *  - Memory allocation in user defined memory regions
  *  - Memory freeing

lwmem/src/include/lwmem/lwmem_opts_template.h

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #ifndef LWMEM_OPTS_HDR_H
 #define LWMEM_OPTS_HDR_H

lwmem/src/include/system/lwmem_sys.h

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #ifndef LWMEM_SYS_HDR_H
 #define LWMEM_SYS_HDR_H

lwmem/src/lwmem/lwmem.c

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #include "lwmem/lwmem.h"
 #include <limits.h>
@@ -1146,7 +1146,7 @@ lwmem_get_size_ex(lwmem_t* lwobj, void* ptr) {
  * \brief           Get statistics of a LwMEM instance
  * \param[in]       lwobj: LwMEM instance. Set to `NULL` to use default instance.
  *                      Instance must be the same as used during allocation procedure
- * \param[in]       stats: Pointer to \ref lwmem_stats_t to store result
+ * \param[in,out]   stats: Pointer to \ref lwmem_stats_t to store result
  */
 void
 lwmem_get_stats_ex(lwmem_t* lwobj, lwmem_stats_t* stats) {
@@ -1159,6 +1159,15 @@ lwmem_get_stats_ex(lwmem_t* lwobj, lwmem_stats_t* stats) {
     }
 }
 
+/**
+ * \brief           Get statistics of a default LwMEM instance
+ * \param[in,out]   stats: Pointer to \ref lwmem_stats_t to store result
+ */
+size_t
+lwmem_get_size(lwmem_stats_t* stats) {
+    lwmem_get_stats_ex(NULL, stats);
+}
+
 #endif /* LWMEM_CFG_ENABLE_STATS || __DOXYGEN__ */
 
 /**

lwmem/src/lwmem/lwmem.cpp

@@ -29,5 +29,5 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */

lwmem/src/system/lwmem_sys_cmsis_os.c

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #include "system/lwmem_sys.h"
 

lwmem/src/system/lwmem_sys_threadx.c

@@ -29,7 +29,7 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #include "system/lwmem_sys.h"
 

lwmem/src/system/lwmem_sys_win32.c

@@ -29,13 +29,13 @@
  * This file is part of LwMEM - Lightweight dynamic memory manager library.
  *
  * Author:          Tilen MAJERLE <tilen@majerle.eu>
- * Version:         v2.1.0
+ * Version:         v2.2.0
  */
 #include "system/lwmem_sys.h"
 
 #if LWMEM_CFG_OS && !__DOXYGEN__
 
-#include "Windows.h"
+#include "windows.h"
 
 uint8_t
 lwmem_sys_mutex_create(LWMEM_CFG_OS_MUTEX_HANDLE* m) {
@@ -50,12 +50,7 @@ lwmem_sys_mutex_isvalid(LWMEM_CFG_OS_MUTEX_HANDLE* m) {
 
 uint8_t
 lwmem_sys_mutex_wait(LWMEM_CFG_OS_MUTEX_HANDLE* m) {
-    DWORD ret;
+    return WaitForSingleObject(*m, INFINITE) == WAIT_OBJECT_0;
-    ret = WaitForSingleObject(*m, INFINITE);
-    if (ret != WAIT_OBJECT_0) {
-        return 0;
-    }
-    return 1;
 }
 
 uint8_t