mirror of
https://github.com/minetest/minetest.git
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190 lines
3.5 KiB
C++
190 lines
3.5 KiB
C++
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/*
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(c) 2010 Perttu Ahola <celeron55@gmail.com>
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*/
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#include "debug.h"
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#define sleep_ms(x) Sleep(x)
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#else
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#include <unistd.h>
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#define sleep_ms(x) usleep(x*1000)
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#endif
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/*
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Debug output
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*/
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FILE *g_debugstreams[DEBUGSTREAM_COUNT] = {stderr, NULL};
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void debugstreams_init(bool disable_stderr, const char *filename)
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{
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if(disable_stderr)
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g_debugstreams[0] = NULL;
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if(filename)
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g_debugstreams[1] = fopen(filename, "a");
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if(g_debugstreams[1])
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{
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fprintf(g_debugstreams[1], "\n\n-------------\n");
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fprintf(g_debugstreams[1], " Separator \n");
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fprintf(g_debugstreams[1], "-------------\n\n");
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}
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}
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void debugstreams_deinit()
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{
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if(g_debugstreams[1] != NULL)
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fclose(g_debugstreams[1]);
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}
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Debugbuf debugbuf(false);
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std::ostream dstream(&debugbuf);
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Debugbuf debugbuf_no_stderr(true);
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std::ostream dstream_no_stderr(&debugbuf_no_stderr);
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Nullstream dummyout;
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/*
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Assert
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*/
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void assert_fail(const char *assertion, const char *file,
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unsigned int line, const char *function)
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{
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DEBUGPRINT("\nIn thread %x:\n"
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"%s:%d: %s: Assertion '%s' failed.\n",
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(unsigned int)get_current_thread_id(),
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file, line, function, assertion);
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debug_stacks_print();
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if(g_debugstreams[1])
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fclose(g_debugstreams[1]);
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//sleep_ms(3000);
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abort();
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}
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/*
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DebugStack
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*/
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DebugStack::DebugStack(threadid_t id)
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{
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threadid = id;
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stack_i = 0;
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stack_max_i = 0;
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}
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void DebugStack::print(FILE *file, bool everything)
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{
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fprintf(file, "BEGIN STACK: Debug stack for thread %x:\n",
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(unsigned int)threadid);
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for(int i=0; i<stack_max_i; i++)
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{
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if(i == stack_i && everything == false)
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continue;
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if(everything == true && i == stack_i)
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fprintf(file, "END OF STACK.\n"
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"! Continuing beyond stack end:\n");
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fprintf(file, "#%d %s\n", i, stack[i]);
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}
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if(stack_i == DEBUG_STACK_SIZE)
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fprintf(file, "Probably overflown.\n");
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}
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core::map<threadid_t, DebugStack*> g_debug_stacks;
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JMutex g_debug_stacks_mutex;
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void debug_stacks_init()
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{
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g_debug_stacks_mutex.Init();
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}
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void debug_stacks_print()
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{
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JMutexAutoLock lock(g_debug_stacks_mutex);
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DEBUGPRINT("Debug stacks:\n");
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for(core::map<threadid_t, DebugStack*>::Iterator
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i = g_debug_stacks.getIterator();
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i.atEnd() == false; i++)
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{
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DebugStack *stack = i.getNode()->getValue();
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for(int i=0; i<DEBUGSTREAM_COUNT; i++)
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{
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if(g_debugstreams[i] != NULL)
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stack->print(g_debugstreams[i], true);
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}
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}
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}
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DebugStacker::DebugStacker(const char *text)
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{
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threadid_t threadid = get_current_thread_id();
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JMutexAutoLock lock(g_debug_stacks_mutex);
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core::map<threadid_t, DebugStack*>::Node *n;
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n = g_debug_stacks.find(threadid);
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if(n != NULL)
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{
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m_stack = n->getValue();
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}
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else
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{
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/*DEBUGPRINT("Creating new debug stack for thread %x\n",
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(unsigned int)threadid);*/
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m_stack = new DebugStack(threadid);
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g_debug_stacks.insert(threadid, m_stack);
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}
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if(m_stack->stack_i >= DEBUG_STACK_SIZE)
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{
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m_overflowed = true;
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}
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else
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{
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m_overflowed = false;
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snprintf(m_stack->stack[m_stack->stack_i],
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DEBUG_STACK_TEXT_SIZE, "%s", text);
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m_stack->stack_i++;
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if(m_stack->stack_i > m_stack->stack_max_i)
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m_stack->stack_max_i = m_stack->stack_i;
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}
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}
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DebugStacker::~DebugStacker()
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{
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JMutexAutoLock lock(g_debug_stacks_mutex);
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if(m_overflowed == true)
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return;
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m_stack->stack_i--;
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if(m_stack->stack_i == 0)
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{
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threadid_t threadid = m_stack->threadid;
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/*DEBUGPRINT("Deleting debug stack for thread %x\n",
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(unsigned int)threadid);*/
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delete m_stack;
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g_debug_stacks.remove(threadid);
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}
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}
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