#define SETTINGS_HEADER
#include "irrlichttypes_bloated.h"
+#include "exceptions.h"
#include <string>
-#include <jthread.h>
-#include <jmutex.h>
-#include <jmutexautolock.h>
+#include "jthread/jmutex.h"
+#include "jthread/jmutexautolock.h"
#include "strfnd.h"
#include <iostream>
#include <fstream>
#include "debug.h"
#include "log.h"
#include "util/string.h"
-#include "porting.h"
+#include "util/serialize.h"
#include <list>
#include <map>
#include <set>
+#include "filesys.h"
+#include <cctype>
enum ValueType
{
public:
Settings()
{
- m_mutex.Init();
}
void writeLines(std::ostream &os)
}
}
- // return all keys used
+ // return all keys used
std::vector<std::string> getNames(){
std::vector<std::string> names;
for(std::map<std::string, std::string>::iterator
{
names.push_back(i->first);
}
- return names;
+ return names;
}
// remove a setting
// Write stuff back
{
- std::ofstream os(filename);
- if(os.good() == false)
- {
- errorstream<<"Error opening configuration file"
- " for writing: \""
- <<filename<<"\""<<std::endl;
- return false;
- }
+ std::ostringstream ss(std::ios_base::binary);
/*
Write updated stuff
i = objects.begin();
i != objects.end(); ++i)
{
- os<<(*i);
+ ss<<(*i);
}
/*
std::string value = i->second;
infostream<<"Adding \""<<name<<"\" = \""<<value<<"\""
<<std::endl;
- os<<name<<" = "<<value<<"\n";
+ ss<<name<<" = "<<value<<"\n";
+ }
+
+ if(!fs::safeWriteToFile(filename, ss.str()))
+ {
+ errorstream<<"Error writing configuration file: \""
+ <<filename<<"\""<<std::endl;
+ return false;
}
}
return n->second;
}
+ //////////// Get setting
bool getBool(std::string name)
{
return is_yes(get(name));
return value;
}
- u32 getFlagStr(std::string name, FlagDesc *flagdesc)
+ u32 getFlagStr(std::string name, FlagDesc *flagdesc, u32 *flagmask)
{
std::string val = get(name);
- return (isdigit(val[0])) ? stoi(val) : readFlagString(val, flagdesc);
+ return (std::isdigit(val[0])) ? stoi(val) :
+ readFlagString(val, flagdesc, flagmask);
}
+ // N.B. if getStruct() is used to read a non-POD aggregate type,
+ // the behavior is undefined.
bool getStruct(std::string name, std::string format, void *out, size_t olen)
{
- size_t len = olen;
- std::vector<std::string *> strs_alloced;
- std::string *str;
- std::string valstr = get(name);
- char *s = &valstr[0];
- char *buf = new char[len];
- char *bufpos = buf;
- char *f, *snext;
- size_t pos;
-
- char *fmtpos, *fmt = &format[0];
- while ((f = strtok_r(fmt, ",", &fmtpos)) && s) {
- fmt = NULL;
-
- bool is_unsigned = false;
- int width = 0;
- char valtype = *f;
-
- width = (int)strtol(f + 1, &f, 10);
- if (width && valtype == 's')
- valtype = 'i';
-
- switch (valtype) {
- case 'u':
- is_unsigned = true;
- /* FALLTHROUGH */
- case 'i':
- if (width == 16) {
- bufpos += PADDING(bufpos, u16);
- if ((bufpos - buf) + sizeof(u16) <= len) {
- if (is_unsigned)
- *(u16 *)bufpos = (u16)strtoul(s, &s, 10);
- else
- *(s16 *)bufpos = (s16)strtol(s, &s, 10);
- }
- bufpos += sizeof(u16);
- } else if (width == 32) {
- bufpos += PADDING(bufpos, u32);
- if ((bufpos - buf) + sizeof(u32) <= len) {
- if (is_unsigned)
- *(u32 *)bufpos = (u32)strtoul(s, &s, 10);
- else
- *(s32 *)bufpos = (s32)strtol(s, &s, 10);
- }
- bufpos += sizeof(u32);
- } else if (width == 64) {
- bufpos += PADDING(bufpos, u64);
- if ((bufpos - buf) + sizeof(u64) <= len) {
- if (is_unsigned)
- *(u64 *)bufpos = (u64)strtoull(s, &s, 10);
- else
- *(s64 *)bufpos = (s64)strtoll(s, &s, 10);
- }
- bufpos += sizeof(u64);
- }
- s = strchr(s, ',');
- break;
- case 'b':
- snext = strchr(s, ',');
- if (snext)
- *snext++ = 0;
+ std::string valstr;
- bufpos += PADDING(bufpos, bool);
- if ((bufpos - buf) + sizeof(bool) <= len)
- *(bool *)bufpos = is_yes(std::string(s));
- bufpos += sizeof(bool);
+ try {
+ valstr = get(name);
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
- s = snext;
- break;
- case 'f':
- bufpos += PADDING(bufpos, float);
- if ((bufpos - buf) + sizeof(float) <= len)
- *(float *)bufpos = strtof(s, &s);
- bufpos += sizeof(float);
+ if (!deSerializeStringToStruct(valstr, format, out, olen))
+ return false;
- s = strchr(s, ',');
- break;
- case 's':
- while (*s == ' ' || *s == '\t')
- s++;
- if (*s++ != '"') //error, expected string
- goto fail;
- snext = s;
-
- while (snext[0] && !(snext[-1] != '\\' && snext[0] == '"'))
- snext++;
- *snext++ = 0;
-
- bufpos += PADDING(bufpos, std::string *);
-
- str = new std::string(s);
- pos = 0;
- while ((pos = str->find("\\\"", pos)) != std::string::npos)
- str->erase(pos, 1);
-
- if ((bufpos - buf) + sizeof(std::string *) <= len)
- *(std::string **)bufpos = str;
- bufpos += sizeof(std::string *);
- strs_alloced.push_back(str);
-
- s = *snext ? snext + 1 : NULL;
- break;
- case 'v':
- while (*s == ' ' || *s == '\t')
- s++;
- if (*s++ != '(') //error, expected vector
- goto fail;
-
- if (width == 2) {
- bufpos += PADDING(bufpos, v2f);
-
- if ((bufpos - buf) + sizeof(v2f) <= len) {
- v2f *v = (v2f *)bufpos;
- v->X = strtof(s, &s);
- s++;
- v->Y = strtof(s, &s);
- }
-
- bufpos += sizeof(v2f);
- } else if (width == 3) {
- bufpos += PADDING(bufpos, v3f);
- if ((bufpos - buf) + sizeof(v3f) <= len) {
- v3f *v = (v3f *)bufpos;
- v->X = strtof(s, &s);
- s++;
- v->Y = strtof(s, &s);
- s++;
- v->Z = strtof(s, &s);
- }
-
- bufpos += sizeof(v3f);
- }
- s = strchr(s, ',');
- break;
- default: //error, invalid format specifier
- goto fail;
- }
+ return true;
+ }
- if (s && *s == ',')
- s++;
+ //////////// Try to get value, no exception thrown
+ bool getNoEx(std::string name, std::string &val)
+ {
+ try {
+ val = get(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
+
+ // N.B. getFlagStrNoEx() does not set val, but merely modifies it. Thus,
+ // val must be initialized before using getFlagStrNoEx(). The intention of
+ // this is to simplify modifying a flags field from a default value.
+ bool getFlagStrNoEx(std::string name, u32 &val, FlagDesc *flagdesc)
+ {
+ try {
+ u32 flags, flagmask;
- if ((size_t)(bufpos - buf) > len) //error, buffer too small
- goto fail;
+ flags = getFlagStr(name, flagdesc, &flagmask);
+
+ val &= ~flagmask;
+ val |= flags;
+
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
}
+ }
- if (f && *f) { //error, mismatched number of fields and values
-fail:
- for (size_t i = 0; i != strs_alloced.size(); i++)
- delete strs_alloced[i];
- delete[] buf;
+ bool getFloatNoEx(std::string name, float &val)
+ {
+ try {
+ val = getFloat(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
return false;
}
+ }
- memcpy(out, buf, olen);
- delete[] buf;
- return true;
+ bool getU16NoEx(std::string name, int &val)
+ {
+ try {
+ val = getU16(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
}
- bool setStruct(std::string name, std::string format, void *value)
+ bool getU16NoEx(std::string name, u16 &val)
{
- char sbuf[2048];
- int sbuflen = sizeof(sbuf) - 1;
- sbuf[sbuflen] = 0;
- std::string str;
- int pos = 0;
- size_t fpos;
- char *f;
-
- char *bufpos = (char *)value;
- char *fmtpos, *fmt = &format[0];
- while ((f = strtok_r(fmt, ",", &fmtpos))) {
- fmt = NULL;
- bool is_unsigned = false;
- int width = 0, nprinted = 0;
- char valtype = *f;
-
- width = (int)strtol(f + 1, &f, 10);
- if (width && valtype == 's')
- valtype = 'i';
-
- switch (valtype) {
- case 'u':
- is_unsigned = true;
- /* FALLTHROUGH */
- case 'i':
- if (width == 16) {
- bufpos += PADDING(bufpos, u16);
- nprinted = snprintf(sbuf + pos, sbuflen,
- is_unsigned ? "%u, " : "%d, ",
- *((u16 *)bufpos));
- bufpos += sizeof(u16);
- } else if (width == 32) {
- bufpos += PADDING(bufpos, u32);
- nprinted = snprintf(sbuf + pos, sbuflen,
- is_unsigned ? "%u, " : "%d, ",
- *((u32 *)bufpos));
- bufpos += sizeof(u32);
- } else if (width == 64) {
- bufpos += PADDING(bufpos, u64);
- nprinted = snprintf(sbuf + pos, sbuflen,
- is_unsigned ? "%llu, " : "%lli, ",
- (unsigned long long)*((u64 *)bufpos));
- bufpos += sizeof(u64);
- }
- break;
- case 'b':
- bufpos += PADDING(bufpos, bool);
- nprinted = snprintf(sbuf + pos, sbuflen, "%s, ",
- *((bool *)bufpos) ? "true" : "false");
- bufpos += sizeof(bool);
- break;
- case 'f':
- bufpos += PADDING(bufpos, float);
- nprinted = snprintf(sbuf + pos, sbuflen, "%f, ",
- *((float *)bufpos));
- bufpos += sizeof(float);
- break;
- case 's':
- bufpos += PADDING(bufpos, std::string *);
- str = **((std::string **)bufpos);
-
- fpos = 0;
- while ((fpos = str.find('"', fpos)) != std::string::npos) {
- str.insert(fpos, 1, '\\');
- fpos += 2;
- }
-
- nprinted = snprintf(sbuf + pos, sbuflen, "\"%s\", ",
- (*((std::string **)bufpos))->c_str());
- bufpos += sizeof(std::string *);
- break;
- case 'v':
- if (width == 2) {
- bufpos += PADDING(bufpos, v2f);
- v2f *v = (v2f *)bufpos;
- nprinted = snprintf(sbuf + pos, sbuflen,
- "(%f, %f), ", v->X, v->Y);
- bufpos += sizeof(v2f);
- } else {
- bufpos += PADDING(bufpos, v3f);
- v3f *v = (v3f *)bufpos;
- nprinted = snprintf(sbuf + pos, sbuflen,
- "(%f, %f, %f), ", v->X, v->Y, v->Z);
- bufpos += sizeof(v3f);
- }
- break;
- default:
- return false;
- }
- if (nprinted < 0) //error, buffer too small
- return false;
- pos += nprinted;
- sbuflen -= nprinted;
+ try {
+ val = getU16(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
+
+ bool getS16NoEx(std::string name, int &val)
+ {
+ try {
+ val = getU16(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
+
+ bool getS16NoEx(std::string name, s16 &val)
+ {
+ try {
+ val = getS16(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
+
+ bool getS32NoEx(std::string name, s32 &val)
+ {
+ try {
+ val = getS32(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
+
+ bool getV3FNoEx(std::string name, v3f &val)
+ {
+ try {
+ val = getV3F(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
}
+ }
- if (pos >= 2)
- sbuf[pos - 2] = 0;
+ bool getV2FNoEx(std::string name, v2f &val)
+ {
+ try {
+ val = getV2F(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
- set(name, std::string(sbuf));
+ bool getU64NoEx(std::string name, u64 &val)
+ {
+ try {
+ val = getU64(name);
+ return true;
+ } catch (SettingNotFoundException &e) {
+ return false;
+ }
+ }
+
+ //////////// Set setting
+
+ // N.B. if setStruct() is used to write a non-POD aggregate type,
+ // the behavior is undefined.
+ bool setStruct(std::string name, std::string format, void *value)
+ {
+ std::string structstr;
+ if (!serializeStructToString(&structstr, format, value))
+ return false;
+
+ set(name, structstr);
return true;
}
-
- void setFlagStr(std::string name, u32 flags, FlagDesc *flagdesc)
+
+ void setFlagStr(std::string name, u32 flags,
+ FlagDesc *flagdesc, u32 flagmask)
{
- set(name, writeFlagString(flags, flagdesc));
+ set(name, writeFlagString(flags, flagdesc, flagmask));
}
void setBool(std::string name, bool value)
projects / minetest.git / blobdiff