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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2008-2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include "include/compat.h"
#include "common/debug.h"
namespace ceph {
static CephContext *g_assert_context = NULL;
/* If you register an assert context, ceph_assert() will try to lock the dout
* stream of that context before starting an assert. This is nice because the
* output looks better. Your assert will not be interleaved with other dout
* statements.
*
* However, this is strictly optional and library code currently does not
* register an assert context. The extra complexity of supporting this
* wouldn't really be worth it.
*/
void register_assert_context(CephContext *cct)
{
ceph_assert(!g_assert_context);
g_assert_context = cct;
}
[[gnu::cold]] void __ceph_assert_fail(const char *assertion,
const char *file, int line,
const char *func)
{
g_assert_condition = assertion;
g_assert_file = file;
g_assert_line = line;
g_assert_func = func;
g_assert_thread = (unsigned long long)pthread_self();
ceph_pthread_getname(pthread_self(), g_assert_thread_name,
sizeof(g_assert_thread_name));
ostringstream tss;
tss << ceph_clock_now();
snprintf(g_assert_msg, sizeof(g_assert_msg),
"%s: In function '%s' thread %llx time %s\n"
"%s: %d: FAILED ceph_assert(%s)\n",
file, func, (unsigned long long)pthread_self(), tss.str().c_str(),
file, line, assertion);
dout_emergency(g_assert_msg);
// TODO: get rid of this memory allocation.
ostringstream oss;
oss << BackTrace(1);
dout_emergency(oss.str());
if (g_assert_context) {
lderr(g_assert_context) << g_assert_msg << std::endl;
*_dout << oss.str() << dendl;
// dump recent only if the abort signal handler won't do it for us
if (!g_assert_context->_conf->fatal_signal_handlers) {
g_assert_context->_log->dump_recent();
}
}
abort();
}
[[gnu::cold]] void __ceph_assert_fail(const assert_data &ctx)
{
__ceph_assert_fail(ctx.assertion, ctx.file, ctx.line, ctx.function);
}
class BufAppender {
public:
BufAppender(char* buf, int size) : bufptr(buf), remaining(size) {}
void printf(const char * format, ...) {
va_list args;
va_start(args, format);
this->vprintf(format, args);
va_end(args);
}
void vprintf(const char * format, va_list args) {
int n = vsnprintf(bufptr, remaining, format, args);
if (n >= 0) {
if (n < remaining) {
remaining -= n;
bufptr += n;
} else {
remaining = 0;
}
}
}
private:
char* bufptr;
int remaining;
};
[[gnu::cold]] void __ceph_assertf_fail(const char *assertion,
const char *file, int line,
const char *func, const char* msg,
...)
{
ostringstream tss;
tss << ceph_clock_now();
g_assert_condition = assertion;
g_assert_file = file;
g_assert_line = line;
g_assert_func = func;
g_assert_thread = (unsigned long long)pthread_self();
ceph_pthread_getname(pthread_self(), g_assert_thread_name,
sizeof(g_assert_thread_name));
BufAppender ba(g_assert_msg, sizeof(g_assert_msg));
BackTrace *bt = new BackTrace(1);
ba.printf("%s: In function '%s' thread %llx time %s\n"
"%s: %d: FAILED ceph_assert(%s)\n",
file, func, (unsigned long long)pthread_self(), tss.str().c_str(),
file, line, assertion);
ba.printf("Assertion details: ");
va_list args;
va_start(args, msg);
ba.vprintf(msg, args);
va_end(args);
ba.printf("\n");
dout_emergency(g_assert_msg);
// TODO: get rid of this memory allocation.
ostringstream oss;
oss << *bt;
dout_emergency(oss.str());
if (g_assert_context) {
lderr(g_assert_context) << g_assert_msg << std::endl;
*_dout << oss.str() << dendl;
// dump recent only if the abort signal handler won't do it for us
if (!g_assert_context->_conf->fatal_signal_handlers) {
g_assert_context->_log->dump_recent();
}
}
abort();
}
[[gnu::cold]] void __ceph_abort(const char *file, int line,
const char *func, const string& msg)
{
ostringstream tss;
tss << ceph_clock_now();
g_assert_condition = "abort";
g_assert_file = file;
g_assert_line = line;
g_assert_func = func;
g_assert_thread = (unsigned long long)pthread_self();
ceph_pthread_getname(pthread_self(), g_assert_thread_name,
sizeof(g_assert_thread_name));
BackTrace *bt = new BackTrace(1);
snprintf(g_assert_msg, sizeof(g_assert_msg),
"%s: In function '%s' thread %llx time %s\n"
"%s: %d: ceph_abort_msg(\"%s\")\n", file, func,
(unsigned long long)pthread_self(),
tss.str().c_str(), file, line,
msg.c_str());
dout_emergency(g_assert_msg);
// TODO: get rid of this memory allocation.
ostringstream oss;
oss << *bt;
dout_emergency(oss.str());
if (g_assert_context) {
lderr(g_assert_context) << g_assert_msg << std::endl;
*_dout << oss.str() << dendl;
// dump recent only if the abort signal handler won't do it for us
if (!g_assert_context->_conf->fatal_signal_handlers) {
g_assert_context->_log->dump_recent();
}
}
abort();
}
[[gnu::cold]] void __ceph_abortf(const char *file, int line,
const char *func, const char* msg,
...)
{
ostringstream tss;
tss << ceph_clock_now();
g_assert_condition = "abort";
g_assert_file = file;
g_assert_line = line;
g_assert_func = func;
g_assert_thread = (unsigned long long)pthread_self();
ceph_pthread_getname(pthread_self(), g_assert_thread_name,
sizeof(g_assert_thread_name));
BufAppender ba(g_assert_msg, sizeof(g_assert_msg));
BackTrace *bt = new BackTrace(1);
ba.printf("%s: In function '%s' thread %llx time %s\n"
"%s: %d: abort()\n",
file, func, (unsigned long long)pthread_self(), tss.str().c_str(),
file, line);
ba.printf("Abort details: ");
va_list args;
va_start(args, msg);
ba.vprintf(msg, args);
va_end(args);
ba.printf("\n");
dout_emergency(g_assert_msg);
// TODO: get rid of this memory allocation.
ostringstream oss;
oss << *bt;
dout_emergency(oss.str());
if (g_assert_context) {
lderr(g_assert_context) << g_assert_msg << std::endl;
*_dout << oss.str() << dendl;
// dump recent only if the abort signal handler won't do it for us
if (!g_assert_context->_conf->fatal_signal_handlers) {
g_assert_context->_log->dump_recent();
}
}
abort();
}
[[gnu::cold]] void __ceph_assert_warn(const char *assertion,
const char *file,
int line, const char *func)
{
char buf[8096];
snprintf(buf, sizeof(buf),
"WARNING: ceph_assert(%s) at: %s: %d: %s()\n",
assertion, file, line, func);
dout_emergency(buf);
}
}
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