1 files changed, 138 insertions, 0 deletions
diff --git a/src/shrpx_signal.cc b/src/shrpx_signal.cc
new file mode 100644
index 0000000..63fcc07
--- /dev/null
+++ b/src/shrpx_signal.cc
@@ -0,0 +1,138 @@
+/*
+ * nghttp2 - HTTP/2 C Library
+ *
+ * Copyright (c) 2015 Tatsuhiro Tsujikawa
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "shrpx_signal.h"
+
+#include <cerrno>
+
+#include "shrpx_log.h"
+#include "template.h"
+
+using namespace nghttp2;
+
+namespace shrpx {
+
+int shrpx_signal_block_all(sigset_t *oldset) {
+  sigset_t newset;
+
+  sigfillset(&newset);
+
+#ifndef NOTHREADS
+  int rv;
+
+  rv = pthread_sigmask(SIG_SETMASK, &newset, oldset);
+
+  if (rv != 0) {
+    errno = rv;
+    return -1;
+  }
+
+  return 0;
+#else  // NOTHREADS
+  return sigprocmask(SIG_SETMASK, &newset, oldset);
+#endif // NOTHREADS
+}
+
+int shrpx_signal_unblock_all() {
+  sigset_t newset;
+
+  sigemptyset(&newset);
+
+#ifndef NOTHREADS
+  int rv;
+
+  rv = pthread_sigmask(SIG_SETMASK, &newset, nullptr);
+
+  if (rv != 0) {
+    errno = rv;
+    return -1;
+  }
+
+  return 0;
+#else  // NOTHREADS
+  return sigprocmask(SIG_SETMASK, &newset, nullptr);
+#endif // NOTHREADS
+}
+
+int shrpx_signal_set(sigset_t *set) {
+#ifndef NOTHREADS
+  int rv;
+
+  rv = pthread_sigmask(SIG_SETMASK, set, nullptr);
+
+  if (rv != 0) {
+    errno = rv;
+    return -1;
+  }
+
+  return 0;
+#else  // NOTHREADS
+  return sigprocmask(SIG_SETMASK, set, nullptr);
+#endif // NOTHREADS
+}
+
+namespace {
+template <typename Signals>
+int signal_set_handler(void (*handler)(int), Signals &&sigs) {
+  struct sigaction act {};
+  act.sa_handler = handler;
+  sigemptyset(&act.sa_mask);
+  int rv;
+  for (auto sig : sigs) {
+    rv = sigaction(sig, &act, nullptr);
+    if (rv != 0) {
+      return -1;
+    }
+  }
+  return 0;
+}
+} // namespace
+
+namespace {
+constexpr auto main_proc_ign_signals = std::array<int, 1>{SIGPIPE};
+} // namespace
+
+namespace {
+constexpr auto worker_proc_ign_signals =
+    std::array<int, 5>{REOPEN_LOG_SIGNAL, EXEC_BINARY_SIGNAL,
+                       GRACEFUL_SHUTDOWN_SIGNAL, RELOAD_SIGNAL, SIGPIPE};
+} // namespace
+
+int shrpx_signal_set_main_proc_ign_handler() {
+  return signal_set_handler(SIG_IGN, main_proc_ign_signals);
+}
+
+int shrpx_signal_unset_main_proc_ign_handler() {
+  return signal_set_handler(SIG_DFL, main_proc_ign_signals);
+}
+
+int shrpx_signal_set_worker_proc_ign_handler() {
+  return signal_set_handler(SIG_IGN, worker_proc_ign_signals);
+}
+
+int shrpx_signal_unset_worker_proc_ign_handler() {
+  return signal_set_handler(SIG_DFL, worker_proc_ign_signals);
+}
+
+} // namespace shrpx