/*
-Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GNU Lesser General Public License for more details.
-You should have received a copy of the GNU General Public License along
+You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "debug.h"
+#include "exceptions.h"
+#include "threads.h"
#include <stdio.h>
#include <stdlib.h>
-#include "porting.h"
+#include <cstring>
+#include <map>
+#include "jthread/jmutex.h"
+#include "jthread/jmutexautolock.h"
/*
Debug output
*/
+#define DEBUGSTREAM_COUNT 2
+
FILE *g_debugstreams[DEBUGSTREAM_COUNT] = {stderr, NULL};
+#define DEBUGPRINT(...)\
+{\
+ for(int i=0; i<DEBUGSTREAM_COUNT; i++)\
+ {\
+ if(g_debugstreams[i] != NULL){\
+ fprintf(g_debugstreams[i], __VA_ARGS__);\
+ fflush(g_debugstreams[i]);\
+ }\
+ }\
+}
+
void debugstreams_init(bool disable_stderr, const char *filename)
{
if(disable_stderr)
g_debugstreams[0] = NULL;
+ else
+ g_debugstreams[0] = stderr;
if(filename)
g_debugstreams[1] = fopen(filename, "a");
fclose(g_debugstreams[1]);
}
+class Debugbuf : public std::streambuf
+{
+public:
+ Debugbuf(bool disable_stderr)
+ {
+ m_disable_stderr = disable_stderr;
+ }
+
+ int overflow(int c)
+ {
+ for(int i=0; i<DEBUGSTREAM_COUNT; i++)
+ {
+ if(g_debugstreams[i] == stderr && m_disable_stderr)
+ continue;
+ if(g_debugstreams[i] != NULL)
+ (void)fwrite(&c, 1, 1, g_debugstreams[i]);
+ //TODO: Is this slow?
+ fflush(g_debugstreams[i]);
+ }
+
+ return c;
+ }
+ std::streamsize xsputn(const char *s, std::streamsize n)
+ {
+ for(int i=0; i<DEBUGSTREAM_COUNT; i++)
+ {
+ if(g_debugstreams[i] == stderr && m_disable_stderr)
+ continue;
+ if(g_debugstreams[i] != NULL)
+ (void)fwrite(s, 1, n, g_debugstreams[i]);
+ //TODO: Is this slow?
+ fflush(g_debugstreams[i]);
+ }
+
+ return n;
+ }
+
+private:
+ bool m_disable_stderr;
+};
+
Debugbuf debugbuf(false);
std::ostream dstream(&debugbuf);
Debugbuf debugbuf_no_stderr(true);
void assert_fail(const char *assertion, const char *file,
unsigned int line, const char *function)
{
- DEBUGPRINT("\nIn thread %x:\n"
+ DEBUGPRINT("\nIn thread %lx:\n"
"%s:%d: %s: Assertion '%s' failed.\n",
- (unsigned int)get_current_thread_id(),
+ (unsigned long)get_current_thread_id(),
file, line, function, assertion);
debug_stacks_print();
if(g_debugstreams[1])
fclose(g_debugstreams[1]);
- //sleep_ms(3000);
-
abort();
}
DebugStack
*/
+struct DebugStack
+{
+ DebugStack(threadid_t id);
+ void print(FILE *file, bool everything);
+ void print(std::ostream &os, bool everything);
+
+ threadid_t threadid;
+ char stack[DEBUG_STACK_SIZE][DEBUG_STACK_TEXT_SIZE];
+ int stack_i; // Points to the lowest empty position
+ int stack_max_i; // Highest i that was seen
+};
+
DebugStack::DebugStack(threadid_t id)
{
threadid = id;
stack_i = 0;
stack_max_i = 0;
+ memset(stack, 0, DEBUG_STACK_SIZE*DEBUG_STACK_TEXT_SIZE);
}
void DebugStack::print(FILE *file, bool everything)
{
- fprintf(file, "DEBUG STACK FOR THREAD %x:\n",
- (unsigned int)threadid);
+ fprintf(file, "DEBUG STACK FOR THREAD %lx:\n",
+ (unsigned long)threadid);
for(int i=0; i<stack_max_i; i++)
{
if(i == stack_i && everything == false)
- continue;
+ break;
if(i < stack_i)
fprintf(file, "#%d %s\n", i, stack[i]);
fprintf(file, "Probably overflown.\n");
}
+void DebugStack::print(std::ostream &os, bool everything)
+{
+ os<<"DEBUG STACK FOR THREAD "<<(unsigned long)threadid<<": "<<std::endl;
+
+ for(int i=0; i<stack_max_i; i++)
+ {
+ if(i == stack_i && everything == false)
+ break;
+
+ if(i < stack_i)
+ os<<"#"<<i<<" "<<stack[i]<<std::endl;
+ else
+ os<<"(Leftover data: #"<<i<<" "<<stack[i]<<")"<<std::endl;
+ }
-core::map<threadid_t, DebugStack*> g_debug_stacks;
+ if(stack_i == DEBUG_STACK_SIZE)
+ os<<"Probably overflown."<<std::endl;
+}
+
+std::map<threadid_t, DebugStack*> g_debug_stacks;
JMutex g_debug_stacks_mutex;
void debug_stacks_init()
{
- g_debug_stacks_mutex.Init();
+}
+
+void debug_stacks_print_to(std::ostream &os)
+{
+ JMutexAutoLock lock(g_debug_stacks_mutex);
+
+ os<<"Debug stacks:"<<std::endl;
+
+ for(std::map<threadid_t, DebugStack*>::iterator
+ i = g_debug_stacks.begin();
+ i != g_debug_stacks.end(); ++i)
+ {
+ i->second->print(os, false);
+ }
}
void debug_stacks_print()
DEBUGPRINT("Debug stacks:\n");
- for(core::map<threadid_t, DebugStack*>::Iterator
- i = g_debug_stacks.getIterator();
- i.atEnd() == false; i++)
+ for(std::map<threadid_t, DebugStack*>::iterator
+ i = g_debug_stacks.begin();
+ i != g_debug_stacks.end(); ++i)
{
- DebugStack *stack = i.getNode()->getValue();
+ DebugStack *stack = i->second;
for(int i=0; i<DEBUGSTREAM_COUNT; i++)
{
JMutexAutoLock lock(g_debug_stacks_mutex);
- core::map<threadid_t, DebugStack*>::Node *n;
+ std::map<threadid_t, DebugStack*>::iterator n;
n = g_debug_stacks.find(threadid);
- if(n != NULL)
+ if(n != g_debug_stacks.end())
{
- m_stack = n->getValue();
+ m_stack = n->second;
}
else
{
/*DEBUGPRINT("Creating new debug stack for thread %x\n",
(unsigned int)threadid);*/
m_stack = new DebugStack(threadid);
- g_debug_stacks.insert(threadid, m_stack);
+ g_debug_stacks[threadid] = m_stack;
}
if(m_stack->stack_i >= DEBUG_STACK_SIZE)
/*DEBUGPRINT("Deleting debug stack for thread %x\n",
(unsigned int)threadid);*/
delete m_stack;
- g_debug_stacks.remove(threadid);
+ g_debug_stacks.erase(threadid);
}
}
+
+#ifdef _MSC_VER
+#if CATCH_UNHANDLED_EXCEPTIONS == 1
+void se_trans_func(unsigned int u, EXCEPTION_POINTERS* pExp)
+{
+ dstream<<"In trans_func.\n";
+ if(u == EXCEPTION_ACCESS_VIOLATION)
+ {
+ PEXCEPTION_RECORD r = pExp->ExceptionRecord;
+ dstream<<"Access violation at "<<r->ExceptionAddress
+ <<" write?="<<r->ExceptionInformation[0]
+ <<" address="<<r->ExceptionInformation[1]
+ <<std::endl;
+ throw FatalSystemException
+ ("Access violation");
+ }
+ if(u == EXCEPTION_STACK_OVERFLOW)
+ {
+ throw FatalSystemException
+ ("Stack overflow");
+ }
+ if(u == EXCEPTION_ILLEGAL_INSTRUCTION)
+ {
+ throw FatalSystemException
+ ("Illegal instruction");
+ }
+}
+#endif
+#endif
+
+
+