Changeset 670 for trunk/kernel/syscalls/sys_fbf.c

Timestamp:

Nov 19, 2020, 11:45:52 PM (3 years ago)

Author:

alain

Message:

1) Introduce up to 4 command lines arguments in the KSH "load" command.
These arguments are transfered to the user process through the
argc/argv mechanism, using the user space "args" vseg.

2) Introduce the named and anonymous "pipes", for inter-process communication
through the pipe() and mkfifo() syscalls.

3) Introduce the "chat" application to validate the two above mechanisms.

4) Improve printk() and assert() fonctions in printk.c.

File:

• trunk/kernel/syscalls/sys_fbf.c (modified) (6 diffs)

trunk/kernel/syscalls/sys_fbf.c

@@ -54 +54 @@
 #if DEBUG_SYS_FBF
 if( DEBUG_SYS_FBF < tm_start )
-printk("\n[%s] thread[%x,%x] enter for %s / arg1 %x / arg2 %x / arg3 %x / cycle %d\n",
+printk("\n[%s] thread[%x,%x] %s / a1 %x / a2 %x / a3 %x / cycle %d\n",
 __FUNCTION__, process->pid, this->trdid, dev_fbf_cmd_str( operation ),
 arg1, arg2, arg3, (uint32_t)tm_start );
@@ -203 +203 @@
         }
         ///////////////////////
+        case FBF_ACTIVE_WINDOW:
+        {
+            uint32_t  wid    = arg1;
+            uint32_t  active = arg2;
+
+            // call relevant kernel function
+            error = dev_fbf_active_window( wid , active );
+                
+            if( error )
+            {
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : cannot %s / thread[%x,%x]\n",
+__FUNCTION__ , dev_fbf_cmd_str(operation), process->pid, this->trdid );
+#endif
+                this->errno = EINVAL;
+            }
+            break;
+        }
+        ///////////////////////
         case FBF_DELETE_WINDOW:
         {
@@ -214 +234 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : cannot delete window for %s / thread[%x,%x]\n",
+printk("\n[ERROR] in %s : cannot %s / thread[%x,%x]\n",
 __FUNCTION__ , dev_fbf_cmd_str(operation), process->pid, this->trdid );
 #endif
@@ -237 +257 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : cannot refresh window for %s / thread[%x,%x]\n",
+printk("\n[ERROR] in %s : cannot %s / thread[%x,%x]\n",
 __FUNCTION__ , dev_fbf_cmd_str(operation), process->pid, this->trdid );
 #endif
@@ -258 +278 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : cannot move window / thread[%x,%x]\n",
+printk("\n[ERROR] in %s : cannot %s / thread[%x,%x]\n",
 __FUNCTION__ , dev_fbf_cmd_str(operation), process->pid, this->trdid );
 #endif
@@ -279 +299 @@
 
 #if DEBUG_SYSCALLS_ERROR
-printk("\n[ERROR] in %s : cannot move window / thread[%x,%x]\n",
+printk("\n[ERROR] in %s : cannot %s / thread[%x,%x]\n",
+__FUNCTION__ , dev_fbf_cmd_str(operation), process->pid, this->trdid );
+#endif
+                this->errno = EINVAL;
+            }
+            break;
+        }
+        //////////////////////
+        case FBF_FRONT_WINDOW:
+        {
+            uint32_t  wid = arg1;
+
+            // call relevant kernel function
+            error = dev_fbf_front_window( wid );
+                
+            if( error )
+            {
+
+#if DEBUG_SYSCALLS_ERROR
+printk("\n[ERROR] in %s : cannot %s / thread[%x,%x]\n",
 __FUNCTION__ , dev_fbf_cmd_str(operation), process->pid, this->trdid );
 #endif