1 files changed, 49 insertions, 0 deletions
diff --git a/include/inn/qio.h b/include/inn/qio.h
new file mode 100644
index 0000000..132da6f
--- /dev/null
+++ b/include/inn/qio.h
@@ -0,0 +1,49 @@
+/*  $Id: qio.h 3653 2000-07-29 02:57:50Z rra $
+**
+**  Quick I/O package.
+**
+**  The interface to the Quick I/O package, optimized for reading through
+**  files line by line.  This package uses internal buffering like stdio,
+**  but is even more aggressive about its buffering.
+*/
+
+#ifndef INN_QIO_H
+#define INN_QIO_H 1
+
+#include <inn/defines.h>
+
+BEGIN_DECLS
+
+/*
+**  State for a quick open file, equivalent to FILE for stdio.  All callers
+**  should treat this structure as opaque and instead use the functions and
+**  macros defined below.
+*/
+enum QIOflag { QIO_ok, QIO_error, QIO_long };
+
+typedef struct {
+    int         _fd;
+    size_t      _length;        /* Length of the current string. */
+    size_t      _size;          /* Size of the internal buffer. */
+    char *      _buffer;
+    char *      _start;         /* Start of the unread data. */
+    char *      _end;           /* End of the available data. */
+    off_t       _count;         /* Number of bytes read so far. */
+    enum QIOflag _flag;
+} QIOSTATE;
+
+#define QIOerror(qp)    ((qp)->_flag != QIO_ok)
+#define QIOtoolong(qp)  ((qp)->_flag == QIO_long)
+#define QIOfileno(qp)   ((qp)->_fd)
+#define QIOlength(qp)   ((qp)->_length)
+#define QIOtell(qp)     ((qp)->_count - ((qp)->_end - (qp)->_start))
+
+extern QIOSTATE *       QIOopen(const char *name);
+extern QIOSTATE *       QIOfdopen(int fd);
+extern char *           QIOread(QIOSTATE *qp);
+extern void             QIOclose(QIOSTATE *qp);
+extern int              QIOrewind(QIOSTATE *qp);
+
+END_DECLS
+
+#endif /* !INN_QIO_H */