* progress in moving all the fileaccess over to a wrapper system that can do fd based...

[rrdtool.git] / src / rrd.h

diff --git a/src/rrd.h b/src/rrd.h
index 3873033..ce712d5 100644 (file)
--- a/src/rrd.h
+++ b/src/rrd.h
@@ -52,6 +52,8 @@ extern "C" {
 #ifndef _RRDLIB_H
 #define _RRDLIB_H
 
+#include <sys/types.h> /* for off_t */
+#include <unistd.h> /* for off_t */
 #include <time.h>
 #include <stdio.h> /* for FILE */
 
@@ -60,6 +62,15 @@ typedef double       rrd_value_t;         /* the data storage type is
                                            * double */
 /* END rrd_format.h */
 
+/* information about an rrd file */
+typedef struct rrd_file_t {
+       int   fd;         /* file descriptor if this rrd file */
+       char* file_start; /* start address of an open rrd file */
+       off_t header_len; /* length of the header of this rrd file */
+       off_t file_len;   /* total size of the rrd file */
+       off_t pos;        /* current pos in file */
+} rrd_file_t;
+
 /* main function blocks */
 int    rrd_create(int, char **);
 int    rrd_update(int, char **);
@@ -143,7 +154,7 @@ void   rrd_free_context (struct rrd_context *buf);
 /* int    rrd_test_error_r (struct rrd_context *); */
 /* char  *rrd_get_error_r  (struct rrd_context *); */
 
-int  LockRRD(FILE *);
+int  LockRRD(int in_file);
 
 #endif /* _RRDLIB_H */