New queues APIs.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2571 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 12 insertions, 5 deletions

diff --git a/os/kernel/include/chqueues.h b/os/kernel/include/chqueues.h
index 1f4f3f25a..76a0b63a5 100644
--- a/os/kernel/include/chqueues.h
+++ b/os/kernel/include/chqueues.h
@@ -37,9 +37,6 @@
 #error "CH_USE_QUEUES requires CH_USE_SEMAPHORES"

 #endif

 

-/** @brief Queue notification callback type.*/

-typedef void (*qnotify_t)(void);

-

 /** @brief Returned by the queue functions if the operation is successful.*/

 #define Q_OK            RDY_OK

 /** @brief Returned by the queue functions if a timeout occurs.*/

@@ -53,6 +50,14 @@ typedef void (*qnotify_t)(void);
 

 /**

  * @brief   Type of a generic I/O queue structure.

+ */

+typedef struct GenericQueue GenericQueue;

+

+/** @brief Queue notification callback type.*/

+typedef void (*qnotify_t)(GenericQueue *qp);

+

+/**

+ * @brief   Generic I/O queue structure.

  * @details This structure represents a generic Input or Output asymmetrical

  *          queue. The queue is asymmetrical because one end is meant to be

  *          accessed from a thread context, and thus can be blocking, the other

@@ -60,7 +65,7 @@ typedef void (*qnotify_t)(void);
  *          lock zone (see <b>I-Locked</b> and <b>S-Locked</b> states in

  *          @ref system_states) and is non-blocking.

  */

-typedef struct {

+struct GenericQueue {

   uint8_t               *q_buffer;  /**< @brief Pointer to the queue buffer.*/

   uint8_t               *q_top;     /**< @brief Pointer to the first location

                                                 after the buffer.           */

@@ -68,7 +73,7 @@ typedef struct {
   uint8_t               *q_rdptr;   /**< @brief Read pointer.               */

   Semaphore             q_sem;      /**< @brief Counter @p Semaphore.       */

   qnotify_t             q_notify;   /**< @brief Data notification callback. */

-} GenericQueue;

+};

 

 /**

  * @brief   Returns the queue's buffer size.

@@ -266,6 +271,7 @@ typedef GenericQueue OutputQueue;
 extern "C" {

 #endif

   void chIQInit(InputQueue *iqp, uint8_t *bp, size_t size, qnotify_t infy);

+  size_t chIQGetFullI(InputQueue *iqp);

   void chIQResetI(InputQueue *iqp);

   msg_t chIQPutI(InputQueue *iqp, uint8_t b);

   msg_t chIQGetTimeout(InputQueue *iqp, systime_t time);

@@ -273,6 +279,7 @@ extern "C" {
                          size_t n, systime_t time);

 

   void chOQInit(OutputQueue *oqp, uint8_t *bp, size_t size, qnotify_t onfy);

+  size_t chOQGetFullI(OutputQueue *oqp);

   void chOQResetI(OutputQueue *oqp);

   msg_t chOQPutTimeout(OutputQueue *oqp, uint8_t b, systime_t time);

   msg_t chOQGetI(OutputQueue *oqp);