ddnet/src/engine/config.cpp

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#include <baselib/system.h>
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#include <fstream>
#include <iostream>
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#include <cstring>
#include <cstdio>
#include "config.h"
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using namespace std;
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configuration config;
void config_reset()
{
#define MACRO_CONFIG_INT(name,def,min,max) config.name = def;
#define MACRO_CONFIG_STR(name,len,def) strncpy(config.name, def, len);
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#include "config_variables.h"
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#undef MACRO_CONFIG_INT
#undef MACRO_CONFIG_STR
}
void config_load(const char *filename)
{
dbg_msg("config/load", "loading %s", filename);
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ifstream file(filename);
string line;
if (file)
{
while (getline(file, line))
{
int eq_index = line.find_first_of('=');
if (eq_index != string::npos)
{
string variable = line.substr(0, eq_index);
string value = line.substr(eq_index + 1);
#define MACRO_CONFIG_INT(name,def,min,max) { if (strcmp(#name, variable.c_str()) == 0) config_set_ ## name (&config, atoi(value.c_str())); }
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#define MACRO_CONFIG_STR(name,len,def) { if (strcmp(#name, variable.c_str()) == 0) { config_set_ ## name (&config, value.c_str()); } }
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#include "config_variables.h"
#undef MACRO_CONFIG_INT
#undef MACRO_CONFIG_STR
}
}
file.close();
}
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}
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void config_save(const char *filename)
{
dbg_msg("config/save", "saving config to %s", filename);
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ofstream file(filename);
#define MACRO_CONFIG_INT(name,def,min,max) { file << # name << '=' << config.name << endl; }
#define MACRO_CONFIG_STR(name,len,def) { file << # name << '=' << config.name << endl; }
#include "config_variables.h"
#undef MACRO_CONFIG_INT
#undef MACRO_CONFIG_STR
file.close();
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}
#define MACRO_CONFIG_INT(name,def,min,max) void config_set_ ## name (configuration *c, int val) { if (val < min) val = min; if (max != 0 && val > max) val = max; c->name = val; }
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#define MACRO_CONFIG_STR(name,len,def) void config_set_ ## name (configuration *c, const char *str) { strncpy(c->name, str, len-1); c->name[sizeof(c->name)-1] = 0; }
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#include "config_variables.h"
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#undef MACRO_CONFIG_INT
#undef MACRO_CONFIG_STR