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

Timestamp:

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

Author:

alain

Message:

Introduce syscalls.

File:

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

trunk/kernel/syscalls/sys_creat.c

@@ -1 +1 @@
 /*
- * kern/sys_creat.c - create a file
+ * sys_creat.c - create a file
  * 
- * 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.
@@ -21 +22 @@
  */
 
-#include <config.h>
+#include <hal_types.h>
 #include <vfs.h>
-#include <sys-vfs.h>
-#include <spinlock.h>
-#include <process.h>
-#include <thread.h>
+#include <syscalls.h>
 
 ////////////////////////////////////
-int sys_creat ( char     * pathname,
-                uint32_t   mode )
+int sys_creat( char     * pathname,
+               uint32_t   mode )
 { 
-        CPU_HW_TRACE(sys_creat);
+        uint32_t    flags = O_CREAT;
 
-        register error_t     err;
-        register uint32_t    flags;
-        register thread_t  * this    = durrent_thread;
-        register process_t * process = current_process;
-        struct vfs_file_s    file;
-        struct ku_obj        ku_path;
-        uint32_t             fd      = (uint32_t)-1;
-   
-        if( process_fd_array_full( process ) )
-        {
-                this->info.errno = ENFILE;
-            CPU_HW_TRACE(sys_creat);
-        return fd;
-        }
-
-        flags = 0;
-        KU_BUFF( ku_path , pathname );
-
-    // get the cwd lock
-        rwlock_rdlock( &process->cwd_lock );
-
-        err = vfs_create( &process->vfs_cwd , &ku_path , flags , mode , &file );
-        if( err )
-        {
-                this->info.errno = (err < 0 ) ? -err : err;
-            rwlock_unlock( &process->cwd_lock );
-            CPU_HW_TRACE(sys_creat);
-            return fd;
-        }
-
-        err = process_fd_set( process , &file , &fd );
-        if( err )
-        {
-                vfs_close( &file , NULL );
-                this->info.errno = err;
-        }
-
-        rwlock_unlock( &process->cwd_lock );
-        CPU_HW_TRACE(sys_creat);
-        return fd;
+    return sys_open( pathname , flags , mode );
 }