Use const references for Settings methods

Also check for (this == &other) before locking mutexes.
This commit is contained in:
ShadowNinja 2014-09-11 13:42:21 -04:00
parent b97c9c6577
commit cd64a92a8c
3 changed files with 71 additions and 78 deletions

@ -63,11 +63,11 @@ public:
{
}
void writeLines(std::ostream &os)
void writeLines(std::ostream &os) const
{
JMutexAutoLock lock(m_mutex);
for(std::map<std::string, std::string>::iterator
for(std::map<std::string, std::string>::const_iterator
i = m_settings.begin();
i != m_settings.end(); ++i)
{
@ -78,9 +78,10 @@ public:
}
// return all keys used
std::vector<std::string> getNames(){
std::vector<std::string> getNames() const
{
std::vector<std::string> names;
for(std::map<std::string, std::string>::iterator
for(std::map<std::string, std::string>::const_iterator
i = m_settings.begin();
i != m_settings.end(); ++i)
{
@ -90,7 +91,7 @@ public:
}
// remove a setting
bool remove(const std::string& name)
bool remove(const std::string &name)
{
return m_settings.erase(name);
}
@ -289,7 +290,7 @@ public:
// If something not yet determined to have been changed, check if
// any new stuff was added
if(!something_actually_changed){
for(std::map<std::string, std::string>::iterator
for(std::map<std::string, std::string>::const_iterator
i = m_settings.begin();
i != m_settings.end(); ++i)
{
@ -314,7 +315,7 @@ public:
/*
Write updated stuff
*/
for(std::list<std::string>::iterator
for(std::list<std::string>::const_iterator
i = objects.begin();
i != objects.end(); ++i)
{
@ -324,7 +325,7 @@ public:
/*
Write stuff that was not already in the file
*/
for(std::map<std::string, std::string>::iterator
for(std::map<std::string, std::string>::const_iterator
i = m_settings.begin();
i != m_settings.end(); ++i)
{
@ -421,14 +422,14 @@ public:
return true;
}
void set(std::string name, std::string value)
void set(const std::string &name, std::string value)
{
JMutexAutoLock lock(m_mutex);
m_settings[name] = value;
}
void set(std::string name, const char *value)
void set(const std::string &name, const char *value)
{
JMutexAutoLock lock(m_mutex);
@ -436,22 +437,22 @@ public:
}
void setDefault(std::string name, std::string value)
void setDefault(const std::string &name, std::string value)
{
JMutexAutoLock lock(m_mutex);
m_defaults[name] = value;
}
bool exists(std::string name) const
bool exists(const std::string &name) const
{
JMutexAutoLock lock(m_mutex);
return m_settings.find(name) != m_settings.end()
|| m_defaults.find(name) != m_defaults.end();
return (m_settings.find(name) != m_settings.end() ||
m_defaults.find(name) != m_defaults.end());
}
std::string get(std::string name) const
std::string get(const std::string &name) const
{
JMutexAutoLock lock(m_mutex);
@ -464,12 +465,12 @@ public:
}
//////////// Get setting
bool getBool(std::string name) const
bool getBool(const std::string &name) const
{
return is_yes(get(name));
}
bool getFlag(std::string name) const
bool getFlag(const std::string &name) const
{
try {
return getBool(name);
@ -478,27 +479,27 @@ public:
}
}
float getFloat(std::string name) const
float getFloat(const std::string &name) const
{
return stof(get(name));
}
u16 getU16(std::string name) const
u16 getU16(const std::string &name) const
{
return stoi(get(name), 0, 65535);
}
s16 getS16(std::string name) const
s16 getS16(const std::string &name) const
{
return stoi(get(name), -32768, 32767);
}
s32 getS32(std::string name) const
s32 getS32(const std::string &name) const
{
return stoi(get(name));
}
v3f getV3F(std::string name) const
v3f getV3F(const std::string &name) const
{
v3f value;
Strfnd f(get(name));
@ -509,7 +510,7 @@ public:
return value;
}
v2f getV2F(std::string name) const
v2f getV2F(const std::string &name) const
{
v2f value;
Strfnd f(get(name));
@ -519,7 +520,7 @@ public:
return value;
}
u64 getU64(std::string name) const
u64 getU64(const std::string &name) const
{
u64 value = 0;
std::string s = get(name);
@ -528,7 +529,8 @@ public:
return value;
}
u32 getFlagStr(std::string name, FlagDesc *flagdesc, u32 *flagmask) const
u32 getFlagStr(const std::string &name, const FlagDesc *flagdesc,
u32 *flagmask) const
{
std::string val = get(name);
return std::isdigit(val[0])
@ -538,8 +540,8 @@ public:
// 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) const
bool getStruct(const std::string &name, const std::string &format,
void *out, size_t olen) const
{
std::string valstr;
@ -556,7 +558,7 @@ public:
}
//////////// Try to get value, no exception thrown
bool getNoEx(std::string name, std::string &val) const
bool getNoEx(const std::string &name, std::string &val) const
{
try {
val = get(name);
@ -569,7 +571,7 @@ public:
// 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) const
bool getFlagStrNoEx(const std::string &name, u32 &val, FlagDesc *flagdesc) const
{
try {
u32 flags, flagmask;
@ -585,7 +587,7 @@ public:
}
}
bool getFloatNoEx(std::string name, float &val) const
bool getFloatNoEx(const std::string &name, float &val) const
{
try {
val = getFloat(name);
@ -595,7 +597,7 @@ public:
}
}
bool getU16NoEx(std::string name, int &val) const
bool getU16NoEx(const std::string &name, int &val) const
{
try {
val = getU16(name);
@ -605,7 +607,7 @@ public:
}
}
bool getU16NoEx(std::string name, u16 &val) const
bool getU16NoEx(const std::string &name, u16 &val) const
{
try {
val = getU16(name);
@ -615,7 +617,7 @@ public:
}
}
bool getS16NoEx(std::string name, int &val) const
bool getS16NoEx(const std::string &name, int &val) const
{
try {
val = getU16(name);
@ -625,7 +627,7 @@ public:
}
}
bool getS16NoEx(std::string name, s16 &val) const
bool getS16NoEx(const std::string &name, s16 &val) const
{
try {
val = getS16(name);
@ -635,7 +637,7 @@ public:
}
}
bool getS32NoEx(std::string name, s32 &val) const
bool getS32NoEx(const std::string &name, s32 &val) const
{
try {
val = getS32(name);
@ -645,7 +647,7 @@ public:
}
}
bool getV3FNoEx(std::string name, v3f &val) const
bool getV3FNoEx(const std::string &name, v3f &val) const
{
try {
val = getV3F(name);
@ -655,7 +657,7 @@ public:
}
}
bool getV2FNoEx(std::string name, v2f &val) const
bool getV2FNoEx(const std::string &name, v2f &val) const
{
try {
val = getV2F(name);
@ -665,7 +667,7 @@ public:
}
}
bool getU64NoEx(std::string name, u64 &val) const
bool getU64NoEx(const std::string &name, u64 &val) const
{
try {
val = getU64(name);
@ -679,7 +681,7 @@ public:
// 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)
bool setStruct(const std::string &name, const std::string &format, void *value)
{
std::string structstr;
if (!serializeStructToString(&structstr, format, value))
@ -689,50 +691,47 @@ public:
return true;
}
void setFlagStr(std::string name, u32 flags,
FlagDesc *flagdesc, u32 flagmask)
void setFlagStr(const std::string &name, u32 flags,
const FlagDesc *flagdesc, u32 flagmask)
{
set(name, writeFlagString(flags, flagdesc, flagmask));
}
void setBool(std::string name, bool value)
void setBool(const std::string &name, bool value)
{
if(value)
set(name, "true");
else
set(name, "false");
set(name, value ? "true" : "false");
}
void setFloat(std::string name, float value)
void setFloat(const std::string &name, float value)
{
set(name, ftos(value));
}
void setV3F(std::string name, v3f value)
void setV3F(const std::string &name, v3f value)
{
std::ostringstream os;
os<<"("<<value.X<<","<<value.Y<<","<<value.Z<<")";
set(name, os.str());
}
void setV2F(std::string name, v2f value)
void setV2F(const std::string &name, v2f value)
{
std::ostringstream os;
os<<"("<<value.X<<","<<value.Y<<")";
set(name, os.str());
}
void setS16(std::string name, s16 value)
void setS16(const std::string &name, s16 value)
{
set(name, itos(value));
}
void setS32(std::string name, s32 value)
void setS32(const std::string &name, s32 value)
{
set(name, itos(value));
}
void setU64(std::string name, u64 value)
void setU64(const std::string &name, u64 value)
{
std::ostringstream os;
os<<value;
@ -747,60 +746,54 @@ public:
m_defaults.clear();
}
void updateValue(Settings &other, const std::string &name)
void updateValue(const Settings &other, const std::string &name)
{
JMutexAutoLock lock(m_mutex);
if(&other == this)
if (&other == this)
return;
try{
JMutexAutoLock lock(m_mutex);
try {
std::string val = other.get(name);
m_settings[name] = val;
} catch(SettingNotFoundException &e){
} catch (SettingNotFoundException &e) {
}
return;
}
void update(Settings &other)
void update(const Settings &other)
{
if (&other == this)
return;
JMutexAutoLock lock(m_mutex);
JMutexAutoLock lock2(other.m_mutex);
if(&other == this)
return;
m_settings.insert(other.m_settings.begin(), other.m_settings.end());
m_defaults.insert(other.m_defaults.begin(), other.m_defaults.end());
return;
}
Settings & operator+=(Settings &other)
Settings & operator+=(const Settings &other)
{
JMutexAutoLock lock(m_mutex);
JMutexAutoLock lock2(other.m_mutex);
if(&other == this)
return *this;
update(other);
return *this;
}
Settings & operator=(Settings &other)
Settings & operator=(const Settings &other)
{
if (&other == this)
return *this;
JMutexAutoLock lock(m_mutex);
JMutexAutoLock lock2(other.m_mutex);
if(&other == this)
return *this;
clear();
(*this) += other;
update(other);
return *this;
}

@ -191,7 +191,7 @@ std::string urldecode(std::string str)
return oss.str();
}
u32 readFlagString(std::string str, FlagDesc *flagdesc, u32 *flagmask)
u32 readFlagString(std::string str, const FlagDesc *flagdesc, u32 *flagmask)
{
u32 result = 0, mask = 0;
char *s = &str[0];
@ -225,7 +225,7 @@ u32 readFlagString(std::string str, FlagDesc *flagdesc, u32 *flagmask)
return result;
}
std::string writeFlagString(u32 flags, FlagDesc *flagdesc, u32 flagmask)
std::string writeFlagString(u32 flags, const FlagDesc *flagdesc, u32 flagmask)
{
std::string result;

@ -334,8 +334,8 @@ inline bool is_number(const std::string& tocheck)
std::string translatePassword(std::string playername, std::wstring password);
std::string urlencode(std::string str);
std::string urldecode(std::string str);
u32 readFlagString(std::string str, FlagDesc *flagdesc, u32 *flagmask);
std::string writeFlagString(u32 flags, FlagDesc *flagdesc, u32 flagmask);
u32 readFlagString(std::string str, const FlagDesc *flagdesc, u32 *flagmask);
std::string writeFlagString(u32 flags, const FlagDesc *flagdesc, u32 flagmask);
size_t mystrlcpy(char *dst, const char *src, size_t size);
char *mystrtok_r(char *s, const char *sep, char **lasts);
u64 read_seed(const char *str);