1 files changed, 113 insertions, 0 deletions
diff --git a/cpukit/include/rtems/posix/aio_misc.h b/cpukit/include/rtems/posix/aio_misc.h
new file mode 100644
index 0000000000..aeccbad98f
--- /dev/null
+++ b/cpukit/include/rtems/posix/aio_misc.h
@@ -0,0 +1,113 @@
+/**
+ * @file
+ * 
+ * @brief POSIX Asynchronous Input and Output Private Support
+ *
+ * This defines private information for the AIO implementation.
+ */
+
+/*
+ * Copyright 2010, Alin Rus <alin.codejunkie@gmail.com> 
+ * 
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _AIO_MISC_H
+#define _AIO_MISC_H
+
+#include <stdio.h>
+#include <string.h>
+#include <aio.h>
+#include <pthread.h>
+#include <rtems.h>
+#include <rtems/chain.h>
+#include <rtems/system.h>
+#include <rtems/seterr.h>
+  
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+  /* Actual request being processed */
+  typedef struct
+  {
+    rtems_chain_node next_prio; /* chain requests in order of priority */
+    int policy;                 /* If _POSIX_PRIORITIZED_IO and 
+		                   _POSIX_PRIORITY_SCHEDULING are defined */ 
+    int priority;               /* see above */
+    pthread_t caller_thread;    /* used for notification */
+    struct aiocb *aiocbp;       /* aio control block */
+  } rtems_aio_request;
+
+  typedef struct
+  {
+    rtems_chain_node next_fd;   /* order fd chains in queue */
+    rtems_chain_control perfd;  /* chain of requests for this fd */
+    int fildes;                 /* file descriptor to be processed */
+    int new_fd;                 /* if this is a newly created chain */
+    pthread_mutex_t mutex;      
+    pthread_cond_t cond;
+
+  } rtems_aio_request_chain;
+
+  typedef struct
+  {
+    pthread_mutex_t mutex;
+    pthread_cond_t new_req;
+    pthread_attr_t attr;
+
+    rtems_chain_control work_req; /* chains being worked by active threads */
+    rtems_chain_control idle_req; /* fd chains waiting to be processed */
+    unsigned int initialized;     /* specific value if queue is initialized */
+    int active_threads;           /* the number of active threads */
+    int idle_threads;             /* number of idle threads */
+
+  } rtems_aio_queue;
+
+extern rtems_aio_queue aio_request_queue;
+
+#define AIO_QUEUE_INITIALIZED 0xB00B
+
+#ifndef AIO_MAX_THREADS
+#define AIO_MAX_THREADS 5
+#endif
+
+#ifndef AIO_MAX_QUEUE_SIZE
+#define AIO_MAX_QUEUE_SIZE 30
+#endif
+
+int rtems_aio_init (void);
+int rtems_aio_enqueue (rtems_aio_request *req);
+rtems_aio_request_chain *rtems_aio_search_fd 
+(
+  rtems_chain_control *chain,
+  int fildes,
+  int create
+);
+void rtems_aio_remove_fd (rtems_aio_request_chain *r_chain);
+int rtems_aio_remove_req (rtems_chain_control *chain,
+				 struct aiocb *aiocbp);
+
+#ifdef RTEMS_DEBUG
+#include <assert.h>
+
+#define AIO_assert(_x) assert(_x)
+#define AIO_printf(_x) printf(_x)
+#else
+#define AIO_assert(_x)
+#define AIO_printf(_x)
+#endif
+
+#define rtems_aio_set_errno_return_minus_one( _error, _aiocbp ) \
+  do { (_aiocbp)->error_code = (_error);			\
+    (_aiocbp)->return_value = -1;				\
+    rtems_set_errno_and_return_minus_one (_error);} while(0)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif