diff options
| -rw-r--r-- | unix/main.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/unix/main.c b/unix/main.c index edea7900d2..84570eb9f6 100644 --- a/unix/main.c +++ b/unix/main.c @@ -35,6 +35,7 @@ #include <sys/stat.h> #include <sys/types.h> #include <errno.h> +#include <signal.h> #include "py/mpstate.h" #include "py/nlr.h" @@ -414,6 +415,20 @@ int main(int argc, char **argv) { } MP_NOINLINE int main_(int argc, char **argv) { + #ifdef SIGPIPE + // Do not raise SIGPIPE, instead return EPIPE. Otherwise, e.g. writing + // to peer-closed socket will lead to sudden termination of MicroPython + // process. SIGPIPE is particularly nasty, because unix shell doesn't + // print anything for it, so the above looks like completely sudden and + // silent termination for unknown reason. Ignoring SIGPIPE is also what + // CPython does. Note that this may lead to problems using MicroPython + // scripts as pipe filters, but again, that's what CPython does. So, + // scripts which want to follow unix shell pipe semantics (where SIGPIPE + // means "pipe was requested to terminate, it's not an error"), should + // catch EPIPE themselves. + signal(SIGPIPE, SIG_IGN); + #endif + mp_stack_set_limit(40000 * (BYTES_PER_WORD / 4)); pre_process_options(argc, argv); |