From 93a0e7a1ae18cf721646aa14fd55fa7f0321eb33 Mon Sep 17 00:00:00 2001
From: Phil Carns <carns@mcs.anl.gov>
Date: Mon, 23 May 2016 23:20:13 -0400
Subject: [PATCH] fseeko64 wrapper

---
 darshan-runtime/lib/darshan-stdio.c           | 34 ++++++++++++++++++-
 .../share/ld-opts/darshan-stdio-ld-opts       |  1 +
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/darshan-runtime/lib/darshan-stdio.c b/darshan-runtime/lib/darshan-stdio.c
index 2f7d143..5243696 100644
--- a/darshan-runtime/lib/darshan-stdio.c
+++ b/darshan-runtime/lib/darshan-stdio.c
@@ -61,7 +61,7 @@
  * --------------
  * int      fseek(FILE *, long int, int);                   DONE
  * int      fseeko(FILE *, off_t, int);                     DONE
- * int      fseeko64(FILE *, off_t, int);
+ * int      fseeko64(FILE *, off_t, int);                   DONE
  * int      fsetpos(FILE *, const fpos_t *);
  * int      fsetpos64(FILE *, const fpos_t *);
  * void     rewind(FILE *);
@@ -122,6 +122,7 @@ DARSHAN_FORWARD_DECL(vfscanf, int, (FILE *stream, const char *format, va_list ap
 DARSHAN_FORWARD_DECL(fgets, char*, (char *s, int size, FILE *stream));
 DARSHAN_FORWARD_DECL(fseek, int, (FILE *stream, long offset, int whence));
 DARSHAN_FORWARD_DECL(fseeko, int, (FILE *stream, off_t offset, int whence));
+DARSHAN_FORWARD_DECL(fseeko64, int, (FILE *stream, off_t offset, int whence));
 
 /* The stdio_file_runtime structure maintains necessary runtime metadata
  * for the STDIO file record (darshan_stdio_record structure, defined in
@@ -803,6 +804,37 @@ int DARSHAN_DECL(fseeko)(FILE *stream, off_t offset, int whence)
     return(ret);
 }
 
+int DARSHAN_DECL(fseeko64)(FILE *stream, off_t offset, int whence)
+{
+    int ret;
+    struct stdio_file_runtime* file;
+    double tm1, tm2;
+
+    MAP_OR_FAIL(fseeko64);
+
+    tm1 = darshan_core_wtime();
+    ret = __real_fseeko64(stream, offset, whence);
+    tm2 = darshan_core_wtime();
+
+    if(ret >= 0)
+    {
+        STDIO_LOCK();
+        stdio_runtime_initialize();
+        file = stdio_file_by_stream(stream);
+        if(file)
+        {
+            file->offset = ftell(stream);
+            DARSHAN_TIMER_INC_NO_OVERLAP(
+                file->file_record->fcounters[STDIO_F_META_TIME],
+                tm1, tm2, file->last_meta_end);
+            file->file_record->counters[STDIO_SEEKS] += 1;
+        }
+        STDIO_UNLOCK();
+    }
+
+    return(ret);
+}
+
 /**********************************************************
  * Internal functions for manipulating STDIO module state *
  **********************************************************/
diff --git a/darshan-runtime/share/ld-opts/darshan-stdio-ld-opts b/darshan-runtime/share/ld-opts/darshan-stdio-ld-opts
index 950e3dd..a8fc2a0 100644
--- a/darshan-runtime/share/ld-opts/darshan-stdio-ld-opts
+++ b/darshan-runtime/share/ld-opts/darshan-stdio-ld-opts
@@ -17,6 +17,7 @@
 --wrap=fgets
 --wrap=fseek
 --wrap=fseeko
+--wrap=fseeko64
 --wrap=fprintf
 --wrap=vfprintf
 --wrap=fputc
-- 
2.26.2