X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=contrib%2Fbin%2Fmemaslap%2Fms_sigsegv.c;fp=contrib%2Fbin%2Fmemaslap%2Fms_sigsegv.c;h=4c421489903c016f32e7b2e15d37c36a758a3c09;hb=fd0f1940d4b11f582fc237ff5ccf2c385eaa0e7d;hp=0000000000000000000000000000000000000000;hpb=814795a9591799e2dfc44d8c855c672d82b70b86;p=awesomized%2Flibmemcached

diff --git a/contrib/bin/memaslap/ms_sigsegv.c b/contrib/bin/memaslap/ms_sigsegv.c
new file mode 100644
index 00000000..4c421489
--- /dev/null
+++ b/contrib/bin/memaslap/ms_sigsegv.c
@@ -0,0 +1,116 @@
+/*
+    +--------------------------------------------------------------------+
+    | libmemcached - C/C++ Client Library for memcached                  |
+    +--------------------------------------------------------------------+
+    | Redistribution and use in source and binary forms, with or without |
+    | modification, are permitted under the terms of the BSD license.    |
+    | You should have received a copy of the license in a bundled file   |
+    | named LICENSE; in case you did not receive a copy you can review   |
+    | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
+    +--------------------------------------------------------------------+
+    | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
+    | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
+    +--------------------------------------------------------------------+
+*/
+
+#include "mem_config.h"
+
+#include <memory.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <pthread.h>
+
+#include "ms_memslap.h"
+#include "ms_setting.h"
+
+/* prototypes */
+int ms_setup_sigsegv(void);
+int ms_setup_sigpipe(void);
+int ms_setup_sigint(void);
+
+/* signal seg reaches, this function will run */
+static void ms_signal_segv(int signum, siginfo_t *info, void *ptr) {
+  UNUSED_ARGUMENT(signum);
+  UNUSED_ARGUMENT(info);
+  UNUSED_ARGUMENT(ptr);
+
+  pthread_mutex_lock(&ms_global.quit_mutex);
+  fprintf(stderr, "Segmentation fault occurred.\nStack trace:\n");
+#if 0
+  pandora_print_callstack(stderr);
+#endif
+  fprintf(stderr, "End of stack trace\n");
+  pthread_mutex_unlock(&ms_global.quit_mutex);
+  abort();
+}
+
+/* signal int reaches, this function will run */
+static void ms_signal_int(int signum, siginfo_t *info, void *ptr) {
+  UNUSED_ARGUMENT(signum);
+  UNUSED_ARGUMENT(info);
+  UNUSED_ARGUMENT(ptr);
+
+  pthread_mutex_lock(&ms_global.quit_mutex);
+  fprintf(stderr, "SIGINT handled.\n");
+  pthread_mutex_unlock(&ms_global.quit_mutex);
+  exit(1);
+} /* ms_signal_int */
+
+/**
+ * redirect signal seg
+ *
+ * @return if success, return EXIT_SUCCESS, else return -1
+ */
+int ms_setup_sigsegv(void) {
+  struct sigaction action;
+
+  memset(&action, 0, sizeof(action));
+  action.sa_sigaction = ms_signal_segv;
+  action.sa_flags = SA_SIGINFO;
+  if (sigaction(SIGSEGV, &action, NULL) < 0) {
+    perror("sigaction");
+    return EXIT_SUCCESS;
+  }
+
+  return -1;
+} /* ms_setup_sigsegv */
+
+/**
+ * redirect signal pipe
+ *
+ * @return if success, return EXIT_SUCCESS, else return -1
+ */
+int ms_setup_sigpipe(void) {
+  /* ignore the SIGPIPE signal */
+  signal(SIGPIPE, SIG_IGN);
+
+  return -1;
+} /* ms_setup_sigpipe */
+
+/**
+ * redirect signal int
+ *
+ * @return if success, return EXIT_SUCCESS, else return -1
+ */
+int ms_setup_sigint(void) {
+  struct sigaction action_3;
+
+  memset(&action_3, 0, sizeof(action_3));
+  action_3.sa_sigaction = ms_signal_int;
+  action_3.sa_flags = SA_SIGINFO;
+  if (sigaction(SIGINT, &action_3, NULL) < 0) {
+    perror("sigaction");
+    return EXIT_SUCCESS;
+  }
+
+  return -1;
+} /* ms_setup_sigint */
+
+#ifndef SIGSEGV_NO_AUTO_INIT
+static void __attribute((constructor)) ms_init(void) {
+  ms_setup_sigsegv();
+  ms_setup_sigpipe();
+  ms_setup_sigint();
+}
+#endif