diff options
Diffstat (limited to 'src/nvim/os/signal.c')
| -rw-r--r-- | src/nvim/os/signal.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/nvim/os/signal.c b/src/nvim/os/signal.c index 4abc9cfc36..5295fc03a1 100644 --- a/src/nvim/os/signal.c +++ b/src/nvim/os/signal.c @@ -2,6 +2,9 @@ #include <stdbool.h> #include <uv.h> +#ifndef WIN32 +# include <signal.h> // for sigset_t +#endif #include "nvim/ascii.h" #include "nvim/vim.h" @@ -29,6 +32,9 @@ static bool rejecting_deadly; void signal_init(void) { + // Ensure that SIGCHLD is unblocked, else libuv (epoll_wait) may hang. + signal_unblock_SIGCHLD(); + signal_watcher_init(&main_loop, &spipe, NULL); signal_watcher_init(&main_loop, &shup, NULL); signal_watcher_init(&main_loop, &squit, NULL); @@ -151,3 +157,27 @@ static void on_signal(SignalWatcher *handle, int signum, void *data) break; } } + +static void signal_unblock_SIGCHLD(void) +{ +#ifndef WIN32 + sigset_t mask; + sigemptyset(&mask); + + // Work around broken macOS headers. #5243 +# if defined(__APPLE__) && !defined(__clang__) && !defined(__INTEL_COMPILER) \ + && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wsign-conversion" +# endif + + sigaddset(&mask, SIGCHLD); + +# if defined(__APPLE__) && !defined(__clang__) && !defined(__INTEL_COMPILER) \ + && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)) +# pragma GCC diagnostic pop +# endif + + pthread_sigmask(SIG_UNBLOCK, &mask, NULL); +#endif +} |