Changeset 23 for trunk/kernel/syscalls/sys_alarm.c

Timestamp:

Jun 18, 2017, 10:06:41 PM (7 years ago)

Author:

alain

Message:

Introduce syscalls.

File:

• trunk/kernel/syscalls/sys_alarm.c (modified) (2 diffs)

trunk/kernel/syscalls/sys_alarm.c

@@ -1 +1 @@
 /*
- * kern/sys_alarm.c - timed sleep/wakeup
+ * sys_alarm.c - timed sleep/wakeup
  * 
- * Copyright (c) 2008,2009,2010,2011,2012 Ghassan Almaless
- * Copyright (c) 2011,2012 UPMC Sorbonne Universites
+ * Author    Alain Greiner (2016,2017)
+*
+ * Copyright (c) UPMC Sorbonne Universites
  *
- * This file is part of ALMOS-kernel.
+ * This file is part of ALMOS-MKH.
  *
- * ALMOS-kernel is free software; you can redistribute it and/or modify it
+ * ALMOS-MKH is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by
  * the Free Software Foundation; version 2.0 of the License.
  *
- * ALMOS-kernel is distributed in the hope that it will be useful, but
+ * ALMOS-MKH is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
@@ -17 +18 @@
  *
  * You should have received a copy of the GNU General Public License
- * along with ALMOS-kernel; if not, write to the Free Software Foundation,
+ * along with ALMOS-MKH; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#include <types.h>
+#include <hal_types.h>
 #include <thread.h>
+#include <printk.h>
 #include <cluster.h>
-#include <task.h>
-#include <time.h>
+#include <process.h>
 #include <scheduler.h>
-#include <cpu.h>
-#include <cpu-trace.h>
+#include <core.h>
 
-EVENT_HANDLER(sys_alarm_event_handler)
+////////////////////////////////
+int sys_alarm( uint64_t cycles )
 {
-        struct thread_s *thread;
+    thread_t  * this    = CURRENT_THREAD;
+    process_t * process = this->process;
 
-        thread = event_get_argument(event);
-        sched_wakeup(thread);
-        return 0;
-}
-
-int sys_alarm (unsigned nb_sec)
-{
-        struct thread_s *this;
-        struct event_s event;
-        struct alarm_info_s info;
-
-        if( nb_sec == 0)
-                return 0;
-
-        this = current_thread;
-        event_set_handler(&event, &sys_alarm_event_handler);
-        event_set_priority(&event, E_FUNC);
-        event_set_argument(&event,this);
-        info.event = &event;
-
-        alarm_wait(&info, nb_sec * 4);
-        sched_sleep(this);
-        return 0;
+    printk("\n[ERROR] in %s for thread %x in process %x : not implemented yet\n",
+           __FUNCTION__ , this->trdid , process->pid );
+    this->errno = EFAULT;
+    return -1;
 }
 
 
+