moved all files to the top-level

lib/hio-pipe.h

@@ -0,0 +1,158 @@
+/*
+    Copyright (c) 2016-2020 Chung, Hyung-Hwan. All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+    2. Redistributions in binary form must repipeduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PIPEVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
+    IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+    OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+    IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+    NOT LIMITED TO, PIPECUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+    DATA, OR PIPEFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+    THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+    THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _HIO_PIPE_H_
+#define _HIO_PIPE_H_
+
+#include <hio.h>
+
+enum hio_dev_pipe_sid_t
+{
+	HIO_DEV_PIPE_MASTER = -1, /* no io occurs on this. used only in on_close() */
+	HIO_DEV_PIPE_IN     =  0, /* input */
+	HIO_DEV_PIPE_OUT    =  1 /* output */
+};
+typedef enum hio_dev_pipe_sid_t hio_dev_pipe_sid_t;
+
+typedef struct hio_dev_pipe_t hio_dev_pipe_t;
+typedef struct hio_dev_pipe_slave_t hio_dev_pipe_slave_t;
+
+typedef int (*hio_dev_pipe_on_read_t) (
+	hio_dev_pipe_t*    dev,
+	const void*        data,
+	hio_iolen_t        len
+);
+
+typedef int (*hio_dev_pipe_on_write_t) (
+	hio_dev_pipe_t*    dev,
+	hio_iolen_t        wrlen,
+	void*              wrctx
+);
+
+typedef void (*hio_dev_pipe_on_close_t) (
+	hio_dev_pipe_t*    dev,
+	hio_dev_pipe_sid_t sid
+);
+
+struct hio_dev_pipe_t
+{
+	HIO_DEV_HEADER;
+
+	hio_dev_pipe_slave_t* slave[2];
+	int slave_count;
+
+	hio_dev_pipe_on_read_t on_read;
+	hio_dev_pipe_on_write_t on_write;
+	hio_dev_pipe_on_close_t on_close;
+};
+
+
+struct hio_dev_pipe_slave_t
+{
+	HIO_DEV_HEADER;
+	hio_dev_pipe_sid_t id;
+	hio_syshnd_t pfd;
+	hio_dev_pipe_t* master; /* parent device */
+};
+
+typedef struct hio_dev_pipe_make_t hio_dev_pipe_make_t;
+struct hio_dev_pipe_make_t
+{
+	hio_dev_pipe_on_write_t on_write; /* mandatory */
+	hio_dev_pipe_on_read_t on_read; /* mandatory */
+	hio_dev_pipe_on_close_t on_close; /* optional */
+};
+
+enum hio_dev_pipe_ioctl_cmd_t
+{
+	HIO_DEV_PIPE_CLOSE
+};
+typedef enum hio_dev_pipe_ioctl_cmd_t hio_dev_pipe_ioctl_cmd_t;
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+HIO_EXPORT  hio_dev_pipe_t* hio_dev_pipe_make (
+	hio_t*                     hio,
+	hio_oow_t                  xtnsize,
+	const hio_dev_pipe_make_t* data
+);
+
+#if defined(HIO_HAVE_INLINE)
+static HIO_INLINE hio_t* hio_dev_pipe_gethio (hio_dev_pipe_t* pipe) { return hio_dev_gethio((hio_dev_t*)pipe); }
+#else
+#	define hio_dev_pipe_gethio(pipe) hio_dev_gethio(pipe)
+#endif
+
+#if defined(HIO_HAVE_INLINE)
+static HIO_INLINE void* hio_dev_pipe_getxtn (hio_dev_pipe_t* pipe) { return (void*)(pipe + 1); }
+#else
+#	define hio_dev_pipe_getxtn(pipe) ((void*)(((hio_dev_pipe_t*)pipe) + 1))
+#endif
+
+HIO_EXPORT void hio_dev_pipe_kill (
+	hio_dev_pipe_t* pipe
+);
+
+HIO_EXPORT void hio_dev_pipe_halt (
+	hio_dev_pipe_t* pipe
+);
+
+HIO_EXPORT int hio_dev_pipe_read (
+	hio_dev_pipe_t*     pipe,
+	int                 enabled
+);
+
+HIO_EXPORT int hio_dev_pipe_timedread (
+	hio_dev_pipe_t*     pipe,
+	int                 enabled,
+	const hio_ntime_t*  tmout
+);
+
+HIO_EXPORT int hio_dev_pipe_write (
+	hio_dev_pipe_t*     pipe,
+	const void*         data,
+	hio_iolen_t         len,
+	void*               wrctx
+);
+
+HIO_EXPORT int hio_dev_pipe_timedwrite (
+	hio_dev_pipe_t*     pipe,
+	const void*         data,
+	hio_iolen_t         len,
+	const hio_ntime_t*  tmout,
+	void*               wrctx
+);
+
+HIO_EXPORT int hio_dev_pipe_close (
+	hio_dev_pipe_t*     pipe,
+	hio_dev_pipe_sid_t  sid
+);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif