Fix #635, add typedefs for osal stack and priority

Adds typedefs for:

- osal_priority_t
- osal_stackptr_t
- osal_index_t
- osal_objtype_t
- osal_blockcount_t

Note that by using `uint8` as the priority type, all values are
valid and it is no longer possible to pass a value which is out
of range.  Checks/tests for this are no longer valid and would
cause compiler warnings.

src/bsp/generic-linux/src/bsp_console.c

@@ -72,7 +72,7 @@ static void OS_BSP_ExecTput(const char *cap, const char *param)
    OS_BSP_ConsoleOutput_Impl
    See full description in header
  ------------------------------------------------------------------*/
-void OS_BSP_ConsoleOutput_Impl(const char *Str, uint32 DataLen)
+void OS_BSP_ConsoleOutput_Impl(const char *Str, size_t DataLen)
 {
     ssize_t WriteLen;
 

src/bsp/generic-linux/src/bsp_start.c

@@ -69,7 +69,7 @@ void OS_BSP_Initialize(void)
         {
             if (fgets(buffer, sizeof(buffer), fp) != NULL)
             {
-                OS_BSP_Global.MaxQueueDepth = strtoul(buffer, NULL, 10);
+                OS_BSP_Global.MaxQueueDepth = OSAL_BLOCKCOUNT_C(strtoul(buffer, NULL, 10));
                 BSP_DEBUG("Maximum user msg queue depth = %u\n", (unsigned int)OS_BSP_Global.MaxQueueDepth);
             }
             fclose(fp);

src/bsp/generic-vxworks/src/bsp_console.c

@@ -40,7 +40,7 @@
    OS_BSP_ConsoleOutput_Impl
    See full description in header
  ------------------------------------------------------------------*/
-void OS_BSP_ConsoleOutput_Impl(const char *Str, uint32 DataLen)
+void OS_BSP_ConsoleOutput_Impl(const char *Str, size_t DataLen)
 {
     while (DataLen > 0)
     {

src/bsp/shared/inc/bsp-impl.h

@@ -90,10 +90,10 @@
 */
 typedef struct
 {
-    uint32 ArgC;          /* number of boot/startup parameters in ArgV */
-    char **ArgV;          /* strings for boot/startup parameters */
-    int32  AppStatus;     /* value which can be returned to the OS (0=nominal) */
-    uint32 MaxQueueDepth; /* Queue depth limit supported by BSP (0=no limit) */
+    uint32            ArgC;          /* number of boot/startup parameters in ArgV */
+    char **           ArgV;          /* strings for boot/startup parameters */
+    int32             AppStatus;     /* value which can be returned to the OS (0=nominal) */
+    osal_blockcount_t MaxQueueDepth; /* Queue depth limit supported by BSP (0=no limit) */
 } OS_BSP_GlobalData_t;
 
 /*
@@ -118,7 +118,7 @@ extern OS_BSP_GlobalData_t OS_BSP_Global;
 
        Note: This should write the string as-is without buffering.
  ------------------------------------------------------------------*/
-void OS_BSP_ConsoleOutput_Impl(const char *Str, uint32 DataLen);
+void OS_BSP_ConsoleOutput_Impl(const char *Str, size_t DataLen);
 
 /*----------------------------------------------------------------
    Function: OS_BSP_ConsoleSetMode_Impl

src/os/inc/common_types.h

@@ -101,6 +101,28 @@ extern "C"
      */
     typedef uint32_t osal_id_t;
 
+    /**
+     * A type used to represent a number of blocks or buffers
+     *
+     * This is used with file system and queue implementations.
+     */
+    typedef size_t osal_blockcount_t;
+
+    /**
+     * A type used to represent an index into a table structure
+     *
+     * This is used when referring directly to a table index as
+     * opposed to an object ID.  It is primarily intended for
+     * internal use, but is also output from public APIs such as
+     * OS_ObjectIdToArrayIndex().
+     */
+    typedef uint32 osal_index_t;
+
+    /**
+     * A type used to represent the runtime type or category of an OSAL object
+     */
+    typedef uint32 osal_objtype_t;
+
 #ifndef NULL /* pointer to nothing */
 #define NULL ((void *)0)
 #endif
@@ -150,4 +172,18 @@ extern "C"
 }
 #endif
 
+/*
+ * Type macros for literals
+ *
+ * These macros enforce that a literal or other value is
+ * interpreted as the intended type.  Although implicit
+ * conversions between these types are often possible, using
+ * this makes it explicit in the code where a type conversion
+ * is expected.
+ */
+#define OSAL_SIZE_C(X)       ((size_t) {X})
+#define OSAL_BLOCKCOUNT_C(X) ((osal_blockcount_t) {X})
+#define OSAL_INDEX_C(X)      ((osal_index_t) {X})
+#define OSAL_OBJTYPE_C(X)    ((osal_objtype_t) {X})
+
 #endif /* _common_types_ */

src/os/inc/osapi-os-core.h

@@ -86,15 +86,34 @@
  */
 #define OS_ERROR_NAME_LENGTH 35
 
+/**
+ * @brief Type to be used for OSAL task priorities.
+ *
+ * OSAL priorities are in reverse order, and range
+ * from 0 (highest; will preempt all other tasks) to
+ * 255 (lowest; will not preempt any other task).
+ */
+typedef uint8_t osal_priority_t;
+
+#define OSAL_PRIORITY_C(X) ((osal_priority_t) {X})
+
+/**
+ * @brief Type to be used for OSAL stack pointer.
+ */
+typedef void *osal_stackptr_t;
+
+#define OSAL_STACKPTR_C(X)       ((osal_stackptr_t) {X})
+#define OSAL_TASK_STACK_ALLOCATE OSAL_STACKPTR_C(NULL)
+
 /*  Object property structures */
 
 /** @brief OSAL task properties */
 typedef struct
 {
-    char      name[OS_MAX_API_NAME];
-    osal_id_t creator;
-    uint32    stack_size;
-    uint32    priority;
+    char            name[OS_MAX_API_NAME];
+    osal_id_t       creator;
+    size_t          stack_size;
+    osal_priority_t priority;
 } OS_task_prop_t;
 
 /** @brief OSAL queue properties */
@@ -140,9 +159,9 @@ typedef struct
  */
 typedef struct
 {
-    uint32 free_bytes;
-    uint32 free_blocks;
-    uint32 largest_free_block;
+    size_t            free_bytes;
+    osal_blockcount_t free_blocks;
+    size_t            largest_free_block;
 } OS_heap_prop_t;
 
 /**
@@ -467,7 +486,7 @@ static inline bool OS_ObjectIdDefined(osal_id_t object_id)
  *          #OS_INVALID_POINTER if the passed-in buffer is invalid
  *          #OS_ERR_NAME_TOO_LONG if the name will not fit in the buffer provided
  */
-int32 OS_GetResourceName(osal_id_t object_id, char *buffer, uint32 buffer_size);
+int32 OS_GetResourceName(osal_id_t object_id, char *buffer, size_t buffer_size);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -480,7 +499,7 @@ int32 OS_GetResourceName(osal_id_t object_id, char *buffer, uint32 buffer_size);
  * @return The object type portion of the object_id, see @ref OSObjectTypes for
  *         expected values
  */
-uint32 OS_IdentifyObject(osal_id_t object_id);
+osal_objtype_t OS_IdentifyObject(osal_id_t object_id);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -506,7 +525,7 @@ uint32 OS_IdentifyObject(osal_id_t object_id);
  * @retval #OS_SUCCESS                 @copybrief OS_SUCCESS
  * @retval #OS_ERR_INCORRECT_OBJ_TYPE  @copybrief OS_ERR_INCORRECT_OBJ_TYPE
  */
-int32 OS_ConvertToArrayIndex(osal_id_t object_id, uint32 *ArrayIndex);
+int32 OS_ConvertToArrayIndex(osal_id_t object_id, osal_index_t *ArrayIndex);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -537,7 +556,7 @@ int32 OS_ConvertToArrayIndex(osal_id_t object_id, uint32 *ArrayIndex);
  * @retval #OS_SUCCESS                 @copybrief OS_SUCCESS
  * @retval #OS_ERR_INCORRECT_OBJ_TYPE  @copybrief OS_ERR_INCORRECT_OBJ_TYPE
  * */
-int32 OS_ObjectIdToArrayIndex(uint32 idtype, osal_id_t object_id, uint32 *ArrayIndex);
+int32 OS_ObjectIdToArrayIndex(osal_objtype_t idtype, osal_id_t object_id, osal_index_t *ArrayIndex);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -566,7 +585,8 @@ void OS_ForEachObject(osal_id_t creator_id, OS_ArgCallback_t callback_ptr, void
  * @param[in]  callback_ptr Function to invoke for each matching object ID
  * @param[in]  callback_arg Opaque Argument to pass to callback function
  */
-void OS_ForEachObjectOfType(uint32 objtype, osal_id_t creator_id, OS_ArgCallback_t callback_ptr, void *callback_arg);
+void OS_ForEachObjectOfType(osal_objtype_t objtype, osal_id_t creator_id, OS_ArgCallback_t callback_ptr,
+                            void *callback_arg);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -617,8 +637,8 @@ int32 OS_RegisterEventHandler(OS_EventHandler_t handler);
  * @retval #OS_ERR_NAME_TAKEN if the name specified is already used by a task
  * @retval #OS_ERROR if an unspecified/other error occurs
  */
-int32 OS_TaskCreate(osal_id_t *task_id, const char *task_name, osal_task_entry function_pointer, uint32 *stack_pointer,
-                    uint32 stack_size, uint32 priority, uint32 flags);
+int32 OS_TaskCreate(osal_id_t *task_id, const char *task_name, osal_task_entry function_pointer,
+                    osal_stackptr_t stack_pointer, size_t stack_size, osal_priority_t priority, uint32 flags);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -687,7 +707,7 @@ int32 OS_TaskDelay(uint32 millisecond);
  * @retval #OS_ERR_INVALID_PRIORITY if the priority is greater than the max allowed
  * @retval #OS_ERROR if the OS call to change the priority fails
  */
-int32 OS_TaskSetPriority(osal_id_t task_id, uint32 new_priority);
+int32 OS_TaskSetPriority(osal_id_t task_id, osal_priority_t new_priority);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -797,7 +817,8 @@ int32 OS_TaskFindIdBySystemData(osal_id_t *task_id, const void *sysdata, size_t
  * @retval #OS_QUEUE_INVALID_SIZE if the queue depth exceeds the limit
  * @retval #OS_ERROR if the OS create call fails
  */
-int32 OS_QueueCreate(osal_id_t *queue_id, const char *queue_name, uint32 queue_depth, uint32 data_size, uint32 flags);
+int32 OS_QueueCreate(osal_id_t *queue_id, const char *queue_name, osal_blockcount_t queue_depth, size_t data_size,
+                     uint32 flags);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -839,7 +860,7 @@ int32 OS_QueueDelete(osal_id_t queue_id);
  * @retval #OS_QUEUE_TIMEOUT if the timeout was OS_PEND and the time expired
  * @retval #OS_QUEUE_INVALID_SIZE if the size copied from the queue was not correct
  */
-int32 OS_QueueGet(osal_id_t queue_id, void *data, uint32 size, uint32 *size_copied, int32 timeout);
+int32 OS_QueueGet(osal_id_t queue_id, void *data, size_t size, size_t *size_copied, int32 timeout);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -857,7 +878,7 @@ int32 OS_QueueGet(osal_id_t queue_id, void *data, uint32 size, uint32 *size_copi
  * @retval #OS_QUEUE_FULL if the queue cannot accept another message
  * @retval #OS_ERROR if the OS call returns an error
  */
-int32 OS_QueuePut(osal_id_t queue_id, const void *data, uint32 size, uint32 flags);
+int32 OS_QueuePut(osal_id_t queue_id, const void *data, size_t size, uint32 flags);
 
 /*-------------------------------------------------------------------------------------*/
 /**

src/os/inc/osapi-os-filesys.h

@@ -112,7 +112,7 @@ typedef struct
 {
     uint32 FileModeBits;
     int32  FileTime;
-    uint32 FileSize;
+    size_t FileSize;
 } os_fstat_t;
 
 /**
@@ -285,7 +285,7 @@ int32 OS_close(osal_id_t filedes);
  * @retval #OS_ERROR if OS call failed
  * @retval #OS_ERR_INVALID_ID if the file descriptor passed in is invalid
  */
-int32 OS_read(osal_id_t filedes, void *buffer, uint32 nbytes);
+int32 OS_read(osal_id_t filedes, void *buffer, size_t nbytes);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -306,7 +306,7 @@ int32 OS_read(osal_id_t filedes, void *buffer, uint32 nbytes);
  * @retval #OS_ERROR if OS call failed
  * @retval #OS_ERR_INVALID_ID if the file descriptor passed in is invalid
  */
-int32 OS_write(osal_id_t filedes, const void *buffer, uint32 nbytes);
+int32 OS_write(osal_id_t filedes, const void *buffer, size_t nbytes);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -337,7 +337,7 @@ int32 OS_write(osal_id_t filedes, const void *buffer, uint32 nbytes);
  * @return Byte count on success, zero for timeout, or appropriate error code,
  *         see @ref OSReturnCodes
  */
-int32 OS_TimedRead(osal_id_t filedes, void *buffer, uint32 nbytes, int32 timeout);
+int32 OS_TimedRead(osal_id_t filedes, void *buffer, size_t nbytes, int32 timeout);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -368,7 +368,7 @@ int32 OS_TimedRead(osal_id_t filedes, void *buffer, uint32 nbytes, int32 timeout
  * @return Byte count on success, zero for timeout, or appropriate error code,
  *         see @ref OSReturnCodes
  */
-int32 OS_TimedWrite(osal_id_t filedes, const void *buffer, uint32 nbytes, int32 timeout);
+int32 OS_TimedWrite(osal_id_t filedes, const void *buffer, size_t nbytes, int32 timeout);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -715,7 +715,7 @@ int32 OS_FileSysAddFixedMap(osal_id_t *filesys_id, const char *phys_path, const
  * @retval #OS_FS_ERR_DEVICE_NOT_FREE if the volume table is full
  * @retval #OS_SUCCESS on creating the disk
  */
-int32 OS_mkfs(char *address, const char *devname, const char *volname, uint32 blocksize, uint32 numblocks);
+int32 OS_mkfs(char *address, const char *devname, const char *volname, size_t blocksize, osal_blockcount_t numblocks);
 /*-------------------------------------------------------------------------------------*/
 /**
  * @brief Mounts a file system
@@ -754,7 +754,7 @@ int32 OS_mount(const char *devname, const char *mountpoint);
  * @retval #OS_FS_ERR_DEVICE_NOT_FREE if the volume table is full
  * @retval #OS_FS_ERR_DRIVE_NOT_CREATED on error
  */
-int32 OS_initfs(char *address, const char *devname, const char *volname, uint32 blocksize, uint32 numblocks);
+int32 OS_initfs(char *address, const char *devname, const char *volname, size_t blocksize, osal_blockcount_t numblocks);
 
 /*-------------------------------------------------------------------------------------*/
 /**

src/os/inc/osapi-os-loader.h

@@ -176,7 +176,7 @@ int32 OS_ModuleSymbolLookup(osal_id_t module_id, cpuaddr *symbol_address, const
  * @retval #OS_ERR_NOT_IMPLEMENTED @copybrief OS_ERR_NOT_IMPLEMENTED
  * @retval #OS_ERROR if the symbol table could not be read or dumped
  */
-int32 OS_SymbolTableDump(const char *filename, uint32 size_limit);
+int32 OS_SymbolTableDump(const char *filename, size_t size_limit);
 
 /*-------------------------------------------------------------------------------------*/
 /**

src/os/inc/osapi-os-net.h

@@ -102,7 +102,7 @@ typedef union
  */
 typedef struct
 {
-    uint32            ActualLength; /**< @brief Length of the actual address data */
+    size_t            ActualLength; /**< @brief Length of the actual address data */
     OS_SockAddrData_t AddrData;     /**< @brief Abstract Address data */
 } OS_SockAddr_t;
 
@@ -162,7 +162,7 @@ int32 OS_SocketAddrInit(OS_SockAddr_t *Addr, OS_SocketDomain_t Domain);
  *
  * @return Execution status, see @ref OSReturnCodes
  */
-int32 OS_SocketAddrToString(char *buffer, uint32 buflen, const OS_SockAddr_t *Addr);
+int32 OS_SocketAddrToString(char *buffer, size_t buflen, const OS_SockAddr_t *Addr);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -317,7 +317,7 @@ int32 OS_SocketAccept(osal_id_t sock_id, osal_id_t *connsock_id, OS_SockAddr_t *
  *
  * @return Count of actual bytes received or error status, see @ref OSReturnCodes
  */
-int32 OS_SocketRecvFrom(osal_id_t sock_id, void *buffer, uint32 buflen, OS_SockAddr_t *RemoteAddr, int32 timeout);
+int32 OS_SocketRecvFrom(osal_id_t sock_id, void *buffer, size_t buflen, OS_SockAddr_t *RemoteAddr, int32 timeout);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -334,7 +334,7 @@ int32 OS_SocketRecvFrom(osal_id_t sock_id, void *buffer, uint32 buflen, OS_SockA
  *
  * @return Count of actual bytes sent or error status, see @ref OSReturnCodes
  */
-int32 OS_SocketSendTo(osal_id_t sock_id, const void *buffer, uint32 buflen, const OS_SockAddr_t *RemoteAddr);
+int32 OS_SocketSendTo(osal_id_t sock_id, const void *buffer, size_t buflen, const OS_SockAddr_t *RemoteAddr);
 
 /*-------------------------------------------------------------------------------------*/
 /**
@@ -400,7 +400,7 @@ int32 OS_NetworkGetID(void);
  *
  * @return Execution status, see @ref OSReturnCodes
  */
-int32 OS_NetworkGetHostName(char *host_name, uint32 name_len);
+int32 OS_NetworkGetHostName(char *host_name, size_t name_len);
 /**@}*/
 
 #endif

src/os/inc/osapi-os-timer.h

@@ -33,8 +33,8 @@
 /*
 ** Typedefs
 */
-typedef void (*OS_TimerCallback_t)(osal_id_t timer_id); /**< @brief Timer callback */
-typedef uint32 (*OS_TimerSync_t)(uint32 timer_id);      /**< @brief Timer sync */
+typedef void (*OS_TimerCallback_t)(osal_id_t timer_id);  /**< @brief Timer callback */
+typedef uint32 (*OS_TimerSync_t)(osal_index_t timer_id); /**< @brief Timer sync */
 
 /** @brief Timer properties */
 typedef struct