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authorJo-Philipp Wich <jow@openwrt.org>2014-12-03 15:17:05 +0100
committerJo-Philipp Wich <jow@openwrt.org>2015-01-08 16:26:20 +0100
commit1bb4822dca6113f73e3bc89e2acf15935e6f8e92 (patch)
tree35e16f100466e4e00657199b38bb3d87d52bf73f /libs/nixio/src/poll.c
parent9edd0e46c3f880727738ce8ca6ff1c8b85f99ef4 (diff)
Rework LuCI build system
* Rename subdirectories to their repective OpenWrt package names * Make each LuCI module its own standalone package * Deploy a shared luci.mk which is used by each module Makefile Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
Diffstat (limited to 'libs/nixio/src/poll.c')
-rw-r--r--libs/nixio/src/poll.c210
1 files changed, 0 insertions, 210 deletions
diff --git a/libs/nixio/src/poll.c b/libs/nixio/src/poll.c
deleted file mode 100644
index 1211bc72ac..0000000000
--- a/libs/nixio/src/poll.c
+++ /dev/null
@@ -1,210 +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.
- */
-
-#include "nixio.h"
-#include <time.h>
-#include <errno.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/time.h>
-
-
-static int nixio_gettimeofday(lua_State *L) {
- struct timeval tv;
- gettimeofday(&tv, NULL);
- nixio__pushnumber(L, tv.tv_sec);
- nixio__pushnumber(L, tv.tv_usec);
- return 2;
-}
-
-
-/**
- * nanosleep()
- */
-static int nixio_nanosleep(lua_State *L) {
- struct timespec req, rem;
- req.tv_sec = luaL_optint(L, 1, 0);
- req.tv_nsec = luaL_optint(L, 2, 0);
-
- int status = nanosleep(&req, &rem);
- if (!status) {
- lua_pushboolean(L, 1);
- return 1;
- } else {
- if (errno == EINTR) {
- lua_pushboolean(L, 0);
- lua_pushinteger(L, rem.tv_sec);
- lua_pushinteger(L, rem.tv_nsec);
- return 3;
- } else {
- return nixio__perror(L);
- }
- }
-}
-
-/**
- * Checks whether a flag is set in the bitmap and sets the matching table value
- */
-static void nixio_poll_flags__r(lua_State *L, int *map, int f, const char *t) {
- lua_pushstring(L, t);
- if (*map & f) {
- lua_pushboolean(L, 1);
- } else {
- lua_pushnil(L);
- }
- lua_rawset(L, -3);
-}
-
-/**
- * Translate integer to poll flags and vice versa
- */
-static int nixio_poll_flags(lua_State *L) {
- int flags;
- if (lua_isnumber(L, 1)) {
- flags = luaL_checkinteger(L, 1);
- lua_newtable(L);
- nixio_poll_flags__r(L, &flags, POLLIN, "in");
- nixio_poll_flags__r(L, &flags, POLLOUT, "out");
- nixio_poll_flags__r(L, &flags, POLLERR, "err");
-#ifndef __WINNT__
- nixio_poll_flags__r(L, &flags, POLLPRI, "pri");
- nixio_poll_flags__r(L, &flags, POLLHUP, "hup");
- nixio_poll_flags__r(L, &flags, POLLNVAL, "nval");
-#endif
- } else {
- flags = 0;
- const int j = lua_gettop(L);
- for (int i=1; i<=j; i++) {
- const char *flag = luaL_checkstring(L, i);
- if (!strcmp(flag, "in")) {
- flags |= POLLIN;
- } else if (!strcmp(flag, "out")) {
- flags |= POLLOUT;
- } else if (!strcmp(flag, "err")) {
- flags |= POLLERR;
- } else if (!strcmp(flag, "pri")) {
-#ifndef __WINNT__
- flags |= POLLPRI;
-#endif
- } else if (!strcmp(flag, "hup")) {
-#ifndef __WINNT__
- flags |= POLLHUP;
-#endif
- } else if (!strcmp(flag, "nval")) {
-#ifndef __WINNT__
- flags |= POLLNVAL;
-#endif
- } else {
- return luaL_argerror(L, i,
- "supported values: in, pri, out, err, hup, nval");
- }
- }
- lua_pushinteger(L, flags);
- }
- return 1;
-}
-
-/**
- * poll({{fd = socket, events = FLAGS}, ...}, timeout)
- */
-static int nixio_poll(lua_State *L) {
- int len = lua_objlen(L, 1);
- int i, fd;
- int timeout = luaL_optint(L, 2, 0);
- int status = -1;
-
- /* we are being abused as sleep() replacement... */
- if (lua_isnoneornil(L, 1) || len < 1) {
- if (!poll(NULL, 0, timeout)) {
- lua_pushinteger(L, 0);
- return 1;
- } else {
- return nixio__perror(L);
- }
- }
-
- luaL_checktype(L, 1, LUA_TTABLE);
- struct pollfd *fds = calloc(len, sizeof(struct pollfd));
- if (!fds) {
- return luaL_error(L, NIXIO_OOM);
- }
-
- for (i = 0; i < len; i++) {
- lua_rawgeti(L, 1, i+1);
- if (!lua_istable(L, -1)) {
- free(fds);
- return luaL_argerror(L, 1, "invalid datastructure");
- }
-
- lua_pushliteral(L, "fd");
- lua_rawget(L, -2);
- fd = nixio__tofd(L, -1);
- if (fd == -1) {
- free(fds);
- return luaL_argerror(L, 1, "invalid fd in datastructure");
- }
- fds[i].fd = fd;
-
- lua_pushliteral(L, "events");
- lua_rawget(L, -3);
- fds[i].events = (short)lua_tointeger(L, -1);
-
- lua_pop(L, 3);
- }
-
- status = poll(fds, (nfds_t)len, timeout);
-
- if (status == 0) {
- free(fds);
- lua_pushboolean(L, 0);
- return 1;
- } else if (status < 0) {
- free(fds);
- return nixio__perror(L);
- }
-
- for (i = 0; i < len; i++) {
- lua_rawgeti(L, 1, i+1);
-
- lua_pushliteral(L, "revents");
- lua_pushinteger(L, fds[i].revents);
- lua_rawset(L, -3);
-
- lua_pop(L, 1);
- }
-
- free(fds);
-
- lua_pushinteger(L, status);
- lua_pushvalue(L, 1);
-
- return 2;
-}
-
-/* module table */
-static const luaL_reg R[] = {
- {"gettimeofday", nixio_gettimeofday},
- {"nanosleep", nixio_nanosleep},
- {"poll", nixio_poll},
- {"poll_flags", nixio_poll_flags},
- {NULL, NULL}
-};
-
-void nixio_open_poll(lua_State *L) {
- luaL_register(L, NULL, R);
-}