Changeset 709 for soft/giet_vm/giet_libs/user_lock.h

Timestamp:

Oct 1, 2015, 4:20:46 PM (9 years ago)

Author:

alain

Message:

Major release: Change the task model to implement the POSIX threads API.

• The shell "exec" and "kill" commands can be used to activate/de-activate the applications.
• The "pause", "resume", and "context" commands can be used to stop, restart, a single thtead or to display the thread context.

This version has been tested on the following multi-threaded applications,
that have been modified to use the POSIX threads:

• classif
• convol
• transpose
• gameoflife
• raycast

File:

• soft/giet_vm/giet_libs/user_lock.h (modified) (3 diffs)

soft/giet_vm/giet_libs/user_lock.h

@@ -8 +8 @@
 ///////////////////////////////////////////////////////////////////////////////////
 
-#ifndef _GIET_FILE_LOCK_H_
-#define _GIET_FILE_LOCK_H_
+#ifndef _USER_LOCK_H_
+#define _USER_LOCK_H_
+
+#include "hard_config.h"
 
 ///////////////////////////////////////////////////////////////////////////////////
-//  lock structure
+//  simple lock structure
 ///////////////////////////////////////////////////////////////////////////////////
 
@@ -23 +25 @@
 
 ///////////////////////////////////////////////////////////////////////////////////
-//  access functions
+//  simple lock access functions
 ///////////////////////////////////////////////////////////////////////////////////
 
@@ -35 +37 @@
 extern void lock_init( user_lock_t * lock );
 
+///////////////////////////////////////////////////////////////////////////////////
+//      SQT lock structures 
+///////////////////////////////////////////////////////////////////////////////////
+
+typedef struct sqt_lock_node_s 
+{
+    unsigned int            current;         // current ticket index
+    unsigned int            free;            // next free ticket index
+    unsigned int            level;           // hierarchical level (0 is bottom)
+    struct sqt_lock_node_s* parent;          // parent node (NULL for root)
+    struct sqt_lock_node_s* child[4];        // children node
+    unsigned int            padding[8];      // for 64 bytes alignment         
+} sqt_lock_node_t;
+
+typedef struct sqt_lock_s 
+{
+    sqt_lock_node_t* node[X_SIZE][Y_SIZE][5];  // array of pointers on SBT nodes 
+} sqt_lock_t;
+
+//////////////////////////////////////////////////////////////////////////////////
+//      SQT lock access functions
+//////////////////////////////////////////////////////////////////////////////////
+
+
+extern void sqt_lock_init( sqt_lock_t*  lock,
+                       unsigned int         x_size,
+                       unsigned int         y_size,
+                       unsigned int         ntasks );
+
+extern void sqt_lock_acquire( sqt_lock_t*  lock );
+
+extern void sqt_lock_release( sqt_lock_t*  lock );
+
 #endif