Initial checkin of gRPC to third_party/

third_party/grpc/test/core/util/test_config.c

+/*
+ *
+ * Copyright 2015, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "test/core/util/test_config.h"
+
+#include <grpc/support/port_platform.h>
+#include <grpc/support/log.h>
+#include "src/core/support/string.h"
+#include <stdlib.h>
+#include <signal.h>
+
+double g_fixture_slowdown_factor = 1.0;
+
+#if GPR_GETPID_IN_UNISTD_H
+#include <unistd.h>
+static unsigned seed(void) { return (unsigned)getpid(); }
+#endif
+
+#if GPR_GETPID_IN_PROCESS_H
+#include <process.h>
+static unsigned seed(void) { return _getpid(); }
+#endif
+
+#if GPR_WINDOWS_CRASH_HANDLER
+LONG crash_handler(struct _EXCEPTION_POINTERS *ex_info) {
+  gpr_log(GPR_DEBUG, "Exception handler called, dumping information");
+  while (ex_info->ExceptionRecord) {
+    DWORD code = ex_info->ExceptionRecord->ExceptionCode;
+    DWORD flgs = ex_info->ExceptionRecord->ExceptionFlags;
+    PVOID addr = ex_info->ExceptionRecord->ExceptionAddress;
+    gpr_log("code: %x - flags: %d - address: %p", code, flgs, addr);
+    ex_info->ExceptionRecord = ex_info->ExceptionRecord->ExceptionRecord;
+  }
+  if (IsDebuggerPresent()) {
+    __debugbreak();
+  } else {
+    _exit(1);
+  }
+  return EXCEPTION_EXECUTE_HANDLER;
+}
+
+void abort_handler(int sig) {
+  gpr_log(GPR_DEBUG, "Abort handler called.");
+  if (IsDebuggerPresent()) {
+    __debugbreak();
+  } else {
+    _exit(1);
+  }
+}
+
+static void install_crash_handler() {
+  SetUnhandledExceptionFilter((LPTOP_LEVEL_EXCEPTION_FILTER)crash_handler);
+  _set_abort_behavior(0, _WRITE_ABORT_MSG);
+  _set_abort_behavior(0, _CALL_REPORTFAULT);
+  signal(SIGABRT, abort_handler);
+}
+#elif GPR_POSIX_CRASH_HANDLER
+#include <execinfo.h>
+#include <stdio.h>
+#include <string.h>
+#include <grpc/support/useful.h>
+#include <errno.h>
+
+static char g_alt_stack[MINSIGSTKSZ];
+
+#define MAX_FRAMES 32
+
+/* signal safe output */
+static void output_string(const char *string) {
+  size_t len = strlen(string);
+  ssize_t r;
+
+  do {
+    r = write(STDERR_FILENO, string, len);
+  } while (r == -1 && errno == EINTR);
+}
+
+static void output_num(long num) {
+  char buf[GPR_LTOA_MIN_BUFSIZE];
+  gpr_ltoa(num, buf);
+  output_string(buf);
+}
+
+static void crash_handler(int signum, siginfo_t *info, void *data) {
+  void *addrlist[MAX_FRAMES + 1];
+  int addrlen;
+
+  output_string("\n\n\n*******************************\nCaught signal ");
+  output_num(signum);
+  output_string("\n");
+
+  addrlen = backtrace(addrlist, GPR_ARRAY_SIZE(addrlist));
+
+  if (addrlen == 0) {
+    output_string("  no backtrace\n");
+  } else {
+    backtrace_symbols_fd(addrlist, addrlen, STDERR_FILENO);
+  }
+
+  /* try to get a core dump for SIGTERM */
+  if (signum == SIGTERM) signum = SIGQUIT;
+  raise(signum);
+}
+
+static void install_crash_handler() {
+  stack_t ss;
+  struct sigaction sa;
+
+  memset(&ss, 0, sizeof(ss));
+  memset(&sa, 0, sizeof(sa));
+  ss.ss_size = sizeof(g_alt_stack);
+  ss.ss_sp = g_alt_stack;
+  GPR_ASSERT(sigaltstack(&ss, NULL) == 0);
+  sa.sa_flags = (int)(SA_SIGINFO | SA_ONSTACK | SA_RESETHAND);
+  sa.sa_sigaction = crash_handler;
+  GPR_ASSERT(sigaction(SIGILL, &sa, NULL) == 0);
+  GPR_ASSERT(sigaction(SIGABRT, &sa, NULL) == 0);
+  GPR_ASSERT(sigaction(SIGBUS, &sa, NULL) == 0);
+  GPR_ASSERT(sigaction(SIGSEGV, &sa, NULL) == 0);
+  GPR_ASSERT(sigaction(SIGTERM, &sa, NULL) == 0);
+  GPR_ASSERT(sigaction(SIGQUIT, &sa, NULL) == 0);
+}
+#else
+static void install_crash_handler() {}
+#endif
+
+void grpc_test_init(int argc, char **argv) {
+  install_crash_handler();
+  gpr_log(GPR_DEBUG, "test slowdown: machine=%f build=%f total=%f",
+          (double)GRPC_TEST_SLOWDOWN_MACHINE_FACTOR,
+          (double)GRPC_TEST_SLOWDOWN_BUILD_FACTOR,
+          (double)GRPC_TEST_SLOWDOWN_FACTOR);
+  /* seed rng with pid, so we don't end up with the same random numbers as a
+     concurrently running test binary */
+  srand(seed());
+}