Rework LuCI build system

[project/luci.git] / libs / nixio / src / splice.c

diff --git a/libs/nixio/src/splice.c b/libs/nixio/src/splice.c
deleted file mode 100644 (file)
index db63ea9..0000000
--- a/libs/nixio/src/splice.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * nixio - Linux I/O library for lua
- *
- *   Copyright (C) 2009 Steven Barth <steven@midlink.org>
- *
- *  Licensed under the Apache License, Version 2.0 (the "License");
- *  you may not use this file except in compliance with the License.
- *  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- *  Unless required by applicable law or agreed to in writing, software
- *  distributed under the License is distributed on an "AS IS" BASIS,
- *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- *  See the License for the specific language governing permissions and
- *  limitations under the License.
- */
-
-#ifdef __linux__
-#define _GNU_SOURCE
-#endif
-
-#include "nixio.h"
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <sys/param.h>
-
-
-#ifndef __WINNT__
-
-#ifndef BSD
-#include <sys/sendfile.h>
-#else
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/uio.h>
-#endif
-
-#ifdef _GNU_SOURCE
-#ifdef SPLICE_F_MOVE
-
-/* guess what sucks... */
-#ifdef __UCLIBC__
-#include <unistd.h>
-#include <sys/syscall.h>
-
-ssize_t splice(int __fdin, __off64_t *__offin, int __fdout,
-        __off64_t *__offout, size_t __len, unsigned int __flags) {
-#ifdef __NR_splice
-       return syscall(__NR_splice, __fdin, __offin, __fdout, __offout, __len, __flags);
-#else
-       (void)__fdin;
-       (void)__offin;
-       (void)__fdout;
-       (void)__offout;
-       (void)__len;
-       (void)__flags;
-       errno = ENOSYS;
-       return -1;
-#endif
-}
-
-#undef SPLICE_F_MOVE
-#undef SPLICE_F_NONBLOCK
-#undef SPLICE_F_MORE
-
-#define SPLICE_F_MOVE 1
-#define SPLICE_F_NONBLOCK 2
-#define SPLICE_F_MORE 4
-
-#endif /* __UCLIBC__ */
-
-/**
- * splice(fd_in, fd_out, length, flags)
- */
-static int nixio_splice(lua_State *L) {
-       int fd_in = nixio__checkfd(L, 1);
-       int fd_out = nixio__checkfd(L, 2);
-       size_t len = luaL_checkinteger(L, 3);
-       int flags = luaL_optinteger(L, 4, 0);
-       long spliced;
-
-       do {
-               spliced = splice(fd_in, NULL, fd_out, NULL, len, flags);
-       } while (spliced == -1 && errno == EINTR);
-
-       if (spliced < 0) {
-               return nixio__perror(L);
-       }
-
-       lua_pushinteger(L, spliced);
-       return 1;
-}
-
-/**
- * Translate splice flags to integer
- */
-static int nixio_splice_flags(lua_State *L) {
-       const int j = lua_gettop(L);
-       int flags = 0;
-       for (int i=1; i<=j; i++) {
-               const char *flag = luaL_checkstring(L, i);
-               if (!strcmp(flag, "move")) {
-                       flags |= SPLICE_F_MOVE;
-               } else if (!strcmp(flag, "nonblock")) {
-                       flags |= SPLICE_F_NONBLOCK;
-               } else if (!strcmp(flag, "more")) {
-                       flags |= SPLICE_F_MORE;
-               } else {
-                       return luaL_argerror(L, i, "supported values: "
-                        "move, nonblock, more");
-               }
-       }
-       lua_pushinteger(L, flags);
-
-       return 1;
-}
-
-#endif /* SPLICE_F_MOVE */
-#endif /* _GNU_SOURCE */
-
-/**
- * sendfile(outfd, infd, length)
- */
-static int nixio_sendfile(lua_State *L) {
-       int sock = nixio__checksockfd(L);
-       int infd = nixio__checkfd(L, 2);
-       size_t len = luaL_checkinteger(L, 3);
-       off_t spliced;
-
-#ifndef BSD
-       do {
-               spliced = sendfile(sock, infd, NULL, len);
-       } while (spliced == -1 && errno == EINTR);
-
-       if (spliced == -1) {
-               return nixio__perror(L);
-       }
-#else
-       int r;
-       const off_t offset = lseek(infd, 0, SEEK_CUR);
-
-       do {
-#ifdef __DARWIN__
-               r = sendfile(infd, sock, offset, (off_t *)&len, NULL, 0);
-               spliced = r;
-#else
-               r = sendfile(infd, sock, offset, len, NULL, &spliced, 0);
-#endif
-       } while (r == -1 && errno == EINTR);
-
-       if (r == -1) {
-               return nixio__perror(L);
-       }
-#endif
-
-       lua_pushinteger(L, spliced);
-       return 1;
-}
-
-/* module table */
-static const luaL_reg R[] = {
-#ifdef _GNU_SOURCE
-#ifdef SPLICE_F_MOVE
-       {"splice",                      nixio_splice},
-       {"splice_flags",        nixio_splice_flags},
-#endif
-#endif
-       {"sendfile",            nixio_sendfile},
-       {NULL,                  NULL}
-};
-
-
-void nixio_open_splice(lua_State *L) {
-       luaL_register(L, NULL, R);
-}
-
-#else /* __WINNT__ */
-
-void nixio_open_splice(lua_State *L) {
-}
-
-#endif /* !__WINNT__ */