Hi Nathan,

I notice in the commit you made below that you remove a couple of the "-FD_BIAS" which are required for zOS, e.g.

- totalWritten = writev(fd-FD_BIAS, vectors, size);
+ totalWritten = writev(fd, vectors, size);

Was there a particular reason to remove them or was it just an oversight? Are you happy for me to reinstate them (the commit breaks these functions on zOS)?

Regards,
Oliver

ndbe...@apache.org wrote:
Author: ndbeyer
Date: Fri May 15 02:07:27 2009
New Revision: 774983

<snip>
Modified: 
harmony/enhanced/classlib/trunk/modules/luni/src/main/native/luni/unix/OSFileSystemLinux32.c
URL: 
http://svn.apache.org/viewvc/harmony/enhanced/classlib/trunk/modules/luni/src/main/native/luni/unix/OSFileSystemLinux32.c?rev=774983&r1=774982&r2=774983&view=diff
==============================================================================
--- 
harmony/enhanced/classlib/trunk/modules/luni/src/main/native/luni/unix/OSFileSystemLinux32.c
 (original)
+++ 
harmony/enhanced/classlib/trunk/modules/luni/src/main/native/luni/unix/OSFileSystemLinux32.c
 Fri May 15 02:07:27 2009
@@ -23,7 +23,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
-#if defined(FREEBSD) || defined(AIX) || defined(ZOS)
+#if defined(FREEBSD) || defined(AIX) || defined(ZOS) || defined(MACOSX)
 #include <sys/types.h>
 #include <sys/socket.h>
 #else
@@ -42,7 +42,7 @@
 #define FD_BIAS 0
 #endif /* ZOS */
-typedef int OSSOCKET; +typedef int OSSOCKET;
 typedef struct hysocket_struct
 {
   OSSOCKET sock;
@@ -164,11 +164,11 @@
   jboolean bufsCopied = JNI_FALSE;
   jboolean offsetsCopied = JNI_FALSE;
   jboolean lengthsCopied = JNI_FALSE;
- jlong *bufs; + jlong *bufs;
   jint *offsets;
   jint *lengths;
   int i = 0;
- long totalRead = 0; + long totalRead = 0;
   struct iovec *vectors = (struct iovec *)hymem_allocate_memory(size * 
sizeof(struct iovec));
   if(vectors == NULL){
     return -1;
@@ -181,7 +181,7 @@
     vectors[i].iov_len = lengths[i];
     i++;
   }
-  totalRead = readv(fd-FD_BIAS, vectors, size);
+  totalRead = readv(fd, vectors, size);
   if(bufsCopied){
     (*env)->ReleaseLongArrayElements(env, jbuffers, bufs, JNI_ABORT);
   }
@@ -206,11 +206,11 @@
   jboolean bufsCopied = JNI_FALSE;
   jboolean offsetsCopied = JNI_FALSE;
   jboolean lengthsCopied = JNI_FALSE;
- jlong *bufs; + jlong *bufs;
   jint *offsets;
   jint *lengths;
   int i = 0;
- long totalWritten = 0; + long totalWritten = 0;
   struct iovec *vectors = (struct iovec *)hymem_allocate_memory(size * 
sizeof(struct iovec));
   if(vectors == NULL){
     return -1;
@@ -223,7 +223,7 @@
     vectors[i].iov_len = lengths[i];
     i++;
   }
-  totalWritten = writev(fd-FD_BIAS, vectors, size);
+  totalWritten = writev(fd, vectors, size);
   if(bufsCopied){
     (*env)->ReleaseLongArrayElements(env, jbuffers, bufs, JNI_ABORT);
   }
@@ -255,7 +255,7 @@
 #if defined(AIX) || defined(ZOS)
   {
     struct sf_parms parms;
-    parms.file_descriptor = (int)fd-FD_BIAS;
+    parms.file_descriptor = (int)fd;
     parms.file_offset = (off64_t)offset;
     parms.file_bytes = count;
     parms.header_data = 0;
@@ -269,10 +269,12 @@
    The conversion here is to guarantee no value lost when converting offset to 
off_t
    */
   off_t off = offset;
-#if !defined(FREEBSD)
-  return sendfile(socket,(int)fd-FD_BIAS,(off_t *)&off,(size_t)count);     
-#else
+#if defined(FREEBSD)
   return sendfile(fd-FD_BIAS, socket, off, (size_t)count, NULL, NULL, 0);
+#elif defined(MACOSX)
+  return sendfile((int)fd-FD_BIAS, (int)socket, off, (off_t *)&count, NULL, 0);
+#else
+  return sendfile(socket,(int)fd-FD_BIAS,(off_t *)&off,(size_t)count);
 #endif
 #endif
 }

--
Oliver Deakin
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