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-rw-r--r--nopsyncd/Makefile3
-rw-r--r--nopsyncd/l_pipe.c124
-rw-r--r--nopsyncd/l_pipe.h33
-rw-r--r--nopsyncd/nopsyncd.c21
-rwxr-xr-xnopsyncd/qlistener.lua6
-rwxr-xr-xnopsyncd/tcpserver.lua25
6 files changed, 207 insertions, 5 deletions
diff --git a/nopsyncd/Makefile b/nopsyncd/Makefile
index ffba7cb..a540d77 100644
--- a/nopsyncd/Makefile
+++ b/nopsyncd/Makefile
@@ -25,7 +25,8 @@ endif
EXECUTABLE := nopsyncd
-C_OBJS := nopsyncd.o
+C_OBJS := l_pipe.o \
+ nopsyncd.o
C_SRCS := $(C_OBJS:%.o=%.c)
diff --git a/nopsyncd/l_pipe.c b/nopsyncd/l_pipe.c
new file mode 100644
index 0000000..6f5a17a
--- /dev/null
+++ b/nopsyncd/l_pipe.c
@@ -0,0 +1,124 @@
+/*
+ * rhnop
+ *
+ * Copyright (C) 2011 Christian Pointner <equinox@helsinki.at>
+ *
+ * This file is part of rhnop.
+ *
+ * rhnop is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * rhnop is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with rhnop. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <lua.h>
+#include <lauxlib.h>
+
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include "l_pipe.h"
+
+static int pipefds_[2];
+
+int pipe_init()
+{
+ return pipe(pipefds_);
+}
+
+int pipe_close()
+{
+ close(pipefds_[0]);
+ close(pipefds_[1]);
+ return 0;
+}
+
+static int l_pipe_signal(lua_State *L)
+{
+ char data = 1;
+ int ret = 0;
+
+ for(;;) {
+ ret = write(pipefds_[1], &data, 1);
+ if(ret == 1) break;
+
+ if(!ret) continue;
+ if(ret == -1 && (errno == EAGAIN || errno == EINTR)) continue;
+
+ break;
+ }
+
+ lua_pushinteger(L, ret);
+ return 1;
+}
+
+static int l_pipe_getfd(lua_State *L)
+{
+ if(!lua_istable(L, -1))
+ luaL_error(L, "can't retreive pipe fd");
+
+ lua_pushliteral(L, "fd");
+ lua_gettable(L, -2);
+ return 1;
+}
+
+static int l_pipe_dirty(lua_State *L)
+{
+ lua_pushboolean(L, 0);
+ return 1;
+}
+
+static int l_pipe_getreadfd(lua_State *L)
+{
+ lua_newtable(L);
+ lua_pushliteral(L, "fd");
+ lua_pushinteger(L, pipefds_[0]);
+ lua_settable(L, -3);
+ lua_pushliteral(L, "getfd");
+ lua_pushcfunction(L, l_pipe_getfd);
+ lua_settable(L, -3);
+ lua_pushliteral(L, "dirty");
+ lua_pushcfunction(L, l_pipe_dirty);
+ lua_settable(L, -3);
+ return 1;
+}
+
+static int l_pipe_consume(lua_State *L)
+{
+ char data;
+ int ret = 0;
+
+ for(;;) {
+ ret = read(pipefds_[0], &data, 1);
+ if(ret == 1 || ret == 0) break;
+
+ if(ret == -1 && (errno == EAGAIN || errno == EINTR)) continue;
+
+ break;
+ }
+
+ lua_pushinteger(L, ret);
+ return 1;
+}
+
+static const struct luaL_reg pipe_funcs [] = {
+ { "signal", l_pipe_signal },
+ { "getreadfd", l_pipe_getreadfd },
+ { "consume", l_pipe_consume },
+ { NULL, NULL }
+};
+
+LUALIB_API int luaopen_pipe(lua_State *L)
+{
+ luaL_register(L, LUA_PIPELIBNAME, pipe_funcs);
+ return 1;
+}
diff --git a/nopsyncd/l_pipe.h b/nopsyncd/l_pipe.h
new file mode 100644
index 0000000..b09f33b
--- /dev/null
+++ b/nopsyncd/l_pipe.h
@@ -0,0 +1,33 @@
+/*
+ * rhnop
+ *
+ * Copyright (C) 2011 Christian Pointner <equinox@helsinki.at>
+ *
+ * This file is part of rhnop.
+ *
+ * rhnop is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * rhnop is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with rhnop. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef NOPSYNCD_l_pipe_h_INCLUDED
+#define NOPSYNCD_l_pipe_h_INCLUDED
+
+#include <lua.h>
+
+int pipe_init();
+int pipe_close();
+
+#define LUA_PIPELIBNAME "pipe"
+LUALIB_API int luaopen_pipe(lua_State *L);
+
+#endif
diff --git a/nopsyncd/nopsyncd.c b/nopsyncd/nopsyncd.c
index b8907ee..d478b18 100644
--- a/nopsyncd/nopsyncd.c
+++ b/nopsyncd/nopsyncd.c
@@ -22,12 +22,15 @@
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
+#include <string.h>
#include <pthread.h>
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
+#include "l_pipe.h"
+
#define LUA_MAIN_LOOP_FUNC "main_loop"
static const luaL_Reg nopsyncd_lualibs[] = {
@@ -36,6 +39,7 @@ static const luaL_Reg nopsyncd_lualibs[] = {
{LUA_TABLIBNAME, luaopen_table},
{LUA_STRLIBNAME, luaopen_string},
{LUA_MATHLIBNAME, luaopen_math},
+ {LUA_MATHLIBNAME, luaopen_pipe},
{NULL, NULL}
};
@@ -114,6 +118,8 @@ void* main_loop(void* file)
if(!ret)
ret = call_main_loop(L, (char*)file);
+ printf("%s returned with %d\n", (char*)file, ret);
+
lua_close(L);
pthread_exit(NULL);
@@ -125,7 +131,13 @@ int main(int argc, char* argv[])
pthread_t qlistener, tcpserver;
- int ret = pthread_create(&qlistener, NULL, main_loop, "qlistener.lua");
+ int ret = pipe_init();
+ if(ret) {
+ fprintf(stderr, "Error creating pipe: %s\n", strerror(errno));
+ return 1;
+ }
+
+ ret = pthread_create(&qlistener, NULL, main_loop, "qlistener.lua");
if(ret) {
fprintf(stderr, "Error creating qlistener thread (code: %d)\n", ret);
return 1;
@@ -140,6 +152,13 @@ int main(int argc, char* argv[])
pthread_join(qlistener, NULL);
pthread_join(tcpserver, NULL);
+ ret = pipe_close();
+ if(ret) {
+ fprintf(stderr, "Error destroying pipe: %s\n", strerror(errno));
+ return 1;
+ }
+
+
printf("stopping nopsyncd.\n");
return 0;
}
diff --git a/nopsyncd/qlistener.lua b/nopsyncd/qlistener.lua
index c850cc6..7594d68 100755
--- a/nopsyncd/qlistener.lua
+++ b/nopsyncd/qlistener.lua
@@ -30,7 +30,7 @@ function main_loop()
os.exit(1)
end
- --while true do
+ while true do
local msg, prio = mq.receive(q)
if msg == nil then
io.stderr:write("recv error: " .. prio .. "\n")
@@ -38,5 +38,7 @@ function main_loop()
end
print("received message '" .. msg .. "' with prio: " .. prio)
- --end
+
+ pipe.signal()
+ end
end \ No newline at end of file
diff --git a/nopsyncd/tcpserver.lua b/nopsyncd/tcpserver.lua
index e7df4e5..ff338ac 100755
--- a/nopsyncd/tcpserver.lua
+++ b/nopsyncd/tcpserver.lua
@@ -22,5 +22,28 @@ require "socket"
function main_loop()
- socket.select(nil, nil, 10)
+ local pipefd = pipe.getreadfd()
+
+ while true do
+ local readable, _, err = socket.select({ pipefd } , nil)
+ if(err) then
+ print("select returned with error: " .. err)
+ return -1
+ else
+ for _, input in ipairs(readable) do
+ if(input == pipefd) then
+ local ret = pipe.consume()
+ if ret == 1 then
+ print("pipe was signaled")
+ else
+ return ret
+ end
+ else
+ print("select returned unknown file descriptor!?")
+ end
+ end
+ end
+ end
+
+ return 0
end \ No newline at end of file