diff options
| -rw-r--r-- | util-src/signal.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/util-src/signal.c b/util-src/signal.c index a55b6f87..3af80a73 100644 --- a/util-src/signal.c +++ b/util-src/signal.c @@ -32,6 +32,10 @@ #include <signal.h> #include <stdlib.h> +#ifdef __linux__ +#include <unistd.h> +#include <sys/signalfd.h> +#endif #include "lua.h" #include "lauxlib.h" @@ -368,12 +372,42 @@ static int l_kill(lua_State *L) { #endif +#ifdef __linux__ +static int l_signalfd(lua_State *L) { + sigset_t mask; + + sigemptyset(&mask); + sigaddset(&mask, luaL_checkinteger(L, 1)); + + sigprocmask(SIG_BLOCK, &mask, NULL); /* TODO check err */ + + lua_pushinteger(L, signalfd(-1, &mask, SFD_NONBLOCK)); + return 1; +} + +static int l_signalfd_read(lua_State *L) { + const int sigfd = luaL_checkinteger(L, 1); + struct signalfd_siginfo siginfo; + + if(read(sigfd, &siginfo, sizeof(siginfo)) < 0) { + return 0; + } + + lua_pushinteger(L, siginfo.ssi_signo); + return 1; +} +#endif + static const struct luaL_Reg lsignal_lib[] = { {"signal", l_signal}, {"raise", l_raise}, #if defined(__unix__) || defined(__APPLE__) {"kill", l_kill}, #endif +#ifdef __linux__ + {"signalfd", l_signalfd}, + {"signalfd_read", l_signalfd_read}, +#endif {NULL, NULL} }; |