Changeset 225 in xtideuniversalbios for trunk/Serial_Server/win32/Win32File.h

Timestamp:

Jan 27, 2012, 6:19:21 PM (12 years ago)

Author:

gregli@…

google:author:

gregli@hotmail.com

Message:

Serial Server, minor improvements to file handling.

File:

• trunk/Serial_Server/win32/Win32File.h (modified) (4 diffs)

trunk/Serial_Server/win32/Win32File.h

@@ -18 +18 @@
 {
 public:
-    void Create( char *p_name )
+    int Create( char *p_name )
     {
         fp = CreateFileA( p_name, GENERIC_WRITE, 0, 0, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, 0 );
-        if( !fp )
-            log( -1, "'%s', could not create file", p_name );
+
+        if( fp == INVALID_HANDLE_VALUE )
+        {
+            if( GetLastError() == ERROR_FILE_EXISTS )
+            {
+                log( 0, "'%s', file already exists", p_name );
+                return( 0 );
+            }
+            else
+                log( -1, "'%s', could not create file", p_name );
+        }
+
         name = p_name;
+
+        return( 1 );
     }
 
@@ -29 +41 @@
     {
         fp = CreateFileA( p_name, GENERIC_READ|GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0 );
-        if( !fp )
+
+        if( fp == INVALID_HANDLE_VALUE )
             log( -1, "'%s', could not open file", p_name );
+
         name = p_name;
     }
@@ -78 +92 @@
 
         if( !ReadFile( fp, buff, len, &out_len, NULL ) || len != out_len )
-            log( -1, "'%s', ReadFile failed" );
+            log( -1, "'%s', ReadFile failed", name );
     }
 
@@ -86 +100 @@
 
         if( !WriteFile( fp, buff, len, &out_len, NULL ) || len != out_len )
-            log( -1, "'%s', WriteFile failed" );
+            log( -1, "'%s', WriteFile failed", name );
     }