Changeset 2277

Timestamp:

Aug 13, 2005, 9:04:16 PM (20 years ago)

Author:

bird

Message:

Added SH_COMPAT to share.h and emulate it as SH_DENYNO (just like watcom).
The SH_COMPAT shareing mode is not available to OS/2 processes, only DOS / os2krnl.

Location:

trunk/src/emx

Files:

• ChangeLog.LIBC (modified) (1 diff, 1 prop)
• include/share.h (modified) (2 diffs, 1 prop)
• src/lib/sys/b_ioFileOpen.c (modified) (3 diffs, 1 prop)

trunk/src/emx/ChangeLog.LIBC

@@ -2 +2 @@
 
 TODO: open replace on RAMFS fails with error 32!
+
+2005-08-13: knut st. osmundsen <bird-gccos2-spam@anduin.net>
+    - libc:
+        o Added SH_COMPAT to share.h and emulate it as SH_DENYNO (just like watcom).
+          The SH_COMPAT shareing mode is not available to OS/2 processes, only DOS / os2krnl.
 
 2005-08-02: knut st. osmundsen <bird-gccos2-spam@anduin.net>

trunk/src/emx/include/share.h

@@ -1 +1 @@
 /* share.h,v 1.2 2004/09/14 22:27:35 bird Exp */
 /** @file
- * EMX. VAC legacy.
+ * EMX. VAC / MSC legacy.
+ *
+ * _sopen(),_vsopen() flags.
  */
 
@@ -7 +9 @@
 #define _SHARE_H
 
+#define SH_COMPAT       0x00
 #define SH_DENYRW       0x10
 #define SH_DENYWR       0x20

trunk/src/emx/src/lib/sys/b_ioFileOpen.c

@@ -38 +38 @@
 #include <errno.h>
 #include <limits.h>
+#include <share.h>
 #include <sys/stat.h>
 #include <emx/syscalls.h>
@@ -47 +48 @@
 #include <InnoTekLIBC/logstrict.h>
 
+#define SH_MASK 0x70
 
 /**
@@ -66 +68 @@
                   pszFile, fFlags, cbInitial, Mode, fLibc, (void*)ppFH);
     FS_VAR();
+
+    /*
+     * The SH_COMPAT mode is weird and unless supported by the host we map it to SH_DENYNO.
+     */
+    if ((fFlags & SH_MASK) == SH_COMPAT)
+        fFlags = (fFlags & ~SH_MASK) | SH_DENYNO;
 
     /*