Added some functions.

[pdclib] / internals / _PDCLIB_int.h

diff --git a/internals/_PDCLIB_int.h b/internals/_PDCLIB_int.h
index 1cc8c018c834ad9ade5702a48856b6256082c60a..1c89ae08b0ee962b71a7be012f21867551fe4246 100644 (file)
--- a/internals/_PDCLIB_int.h
+++ b/internals/_PDCLIB_int.h
@@ -254,19 +254,29 @@ typedef unsigned _PDCLIB_intmax _PDCLIB_uintmax_t;
 /* Various <stdio.h> internals                                                */
 /* -------------------------------------------------------------------------- */
 
-/* Flags for representing mode (see fopen()). */
-#define _PDCLIB_FREAD    1u
-#define _PDCLIB_FWRITE   2u
-#define _PDCLIB_FAPPEND  4u
-#define _PDCLIB_FRW      8u
-#define _PDCLIB_FBIN    16u
+/* Flags for representing mode (see fopen()). Note these must fit the same
+   status field as the _IO?BF flags in <stdio.h> and the internal flags below.
+*/
+#define _PDCLIB_FREAD    8u
+#define _PDCLIB_FWRITE   16u
+#define _PDCLIB_FAPPEND  32u 
+#define _PDCLIB_FRW      64u
+#define _PDCLIB_FBIN    128u
+
+/* Internal flags, made to fit the same status field as the flags above. */
+#define _PDCLIB_WROTELAST  256u
+#define _PDCLIB_LIBBUFFER  512u
+#define _PDCLIB_VIRGINSTR 1024u
+#define _PDCLIB_ERRORFLAG 2048u
+#define _PDCLIB_EOFFLAG   4096u
 
 struct _PDCLIB_file_t
 {
     _PDCLIB_fd_t            handle;   /* OS-specific file descriptor */
     _PDCLIB_fpos_t          position; /* file position indicator */
-    void *                  buffer;   /* file buffer */
+    char *                  buffer;   /* file buffer */
     _PDCLIB_size_t          bufsize;  /* size of buffer */
+    _PDCLIB_size_t          bufidx;   /* pointer into buffer */
     unsigned int            status;   /* misc. status bits */
   /*mbstate_t               mbstate;    multibyte parse state - TODO: Unmask. */
     struct _PDCLIB_file_t * next;     /* provisions for linked list handling */