static ANODE* find_by_sval(
ARRAY A ,
STRING *sval ,
int create_flag ,
int *redo )
{
unsigned hval = ahash(sval) ;
char *str = sval->str ;
DUAL_LINK *table ;
unsigned indx ;
ANODE *p ; /* walks list */
ANODE *q = (ANODE*) 0 ; /* trails p */
if (! (A->type & AY_STR)) add_string_associations(A) ;
table = (DUAL_LINK*) A->ptr ;
indx = hval & A->hmask ;
p = table[indx].slink ;
*redo = 0 ;
while(1) {
if (!p) {
if (create_flag) {
{
p = ZMALLOC(ANODE) ;
p->sval = sval ;
sval->ref_cnt++ ;
p->ival = NOT_AN_IVALUE ;
p->hval = hval ;
p->cell.type = C_NOINIT ;
if (++A->size > A->limit) {
double_the_hash_table(A) ; /* changes table, may change index */
table = (DUAL_LINK*) A->ptr ;
indx = hval & A->hmask ;
*redo = 1 ;
}
}
break ;
}
return (ANODE*) 0 ;
}
else if (p->hval == hval) {
if (strcmp(p->sval->str,str) == 0 ) {
/* found */
if (!q) /* already at the front */
return p ;
else { /* delete for move to the front */
q->slink = p->slink ;
break ;
}
}
}
q = p ;
p = q->slink ;
}
p->slink = table[indx].slink ;
table[indx].slink = p ;
return p ;
}
ConfigSetting* ConfigFile::GetSetting(const char* Block, const char* Setting)
{
uint32 block_hash = ahash(Block);
uint32 setting_hash = ahash(Setting);
/* find it in the big map */
map<uint32, ConfigBlock>::iterator itr = m_settings.find(block_hash);
if (itr != m_settings.end())
{
ConfigBlock::iterator it2 = itr->second.find(setting_hash);
if (it2 != itr->second.end())
return &(it2->second);
return 0;
}
return 0;
}
static Dpage*
findpage(XDStore *s, u32int addr)
{
uint h;
Dpage *p;
assert(addr%s->ds.pagesize == 0);
h = ahash(addr, nelem(s->hash));
assert(h < nelem(s->hash));
//print("look for %ud on %ud\n", addr, h);
for(p=s->hash[h]; p; p=p->next){
if(p->addr == addr){
p->nref++;
return p;
}
}
return nil;
}
static Dpage*
mkpage(XDStore *s, u32int addr)
{
uint h;
Dpage *p;
p = malloc(sizeof(Dpage)+s->ds.pagesize);
if(p == nil)
return nil;
memset(p, 0, sizeof(Dpage));
p->a = (uchar*)&p[1];
p->nref = 1;
p->addr = addr;
p->s = s;
h = ahash(addr, nelem(s->hash));
p->next = s->hash[h];
s->hash[h] = p;
//print("mk %ud linked to %d\n", addr, h);
return p;
}
static void add_string_associations(ARRAY A)
{
if (A->type == AY_NULL) make_empty_table(A, AY_STR) ;
else {
DUAL_LINK *table ;
int i ; /* walks table */
ANODE *p ; /* walks ilist */
char buff[256] ;
if (A->type == AY_SPLIT) convert_split_array_to_table(A) ;
table = (DUAL_LINK*) A->ptr ;
for(i=0; (unsigned) i <= A->hmask; i++) {
p = table[i].ilink ;
while(p) {
sprintf(buff, INT_FMT, p->ival) ;
p->sval = new_STRING(buff) ;
p->hval = ahash(p->sval) ;
p->slink = table[A->hmask&p->hval].slink ;
table[A->hmask&p->hval].slink = p ;
p = p->ilink ;
}
}
A->type |= AY_STR ;
}
}
bool ConfigFile::SetSource(const char* file, bool /*ignorecase*/)
{
/* wipe any existing settings. */
m_settings.clear();
/* open the file */
if (file != 0)
{
//the right mode in Windows is "rb" since '\n' is saved as 0x0D,0x0A but fopen(file,"r") reads these 2 chars
//as only 1 char, so ftell(f) returns a higher value than the required by fread() to the file to buf.
#ifdef WIN32
FILE* f = fopen(file, "rb");
#else
FILE* f = fopen(file, "r");
#endif
char* buf;
int length;
if (!f)
{
sLog.outError("Could not open %s.", file);
return false;
}
/* get the length of the file */
fseek(f, 0, SEEK_END);
length = ftell(f);
buf = new char[length + 1];
fseek(f, 0, SEEK_SET);
fread(buf, length, 1, f);
buf[length] = '\0';
string buffer = string(buf);
delete[] buf;
/* close the file, it is no longer needed */
fclose(f);
/* let's parse it. */
string line;
string::size_type end;
string::size_type offset;
bool in_multiline_comment = false;
bool in_multiline_quote = false;
bool in_block = false;
string current_setting = "";
string current_variable = "";
string current_block = "";
ConfigBlock current_block_map;
ConfigSetting current_setting_struct;
/* oh god this is awful */
try
{
for (;;)
{
/* grab a line. */
end = buffer.find(EOL);
if (end == string::npos)
{
if (buffer.size() == 0)
break;
line = buffer;
buffer.clear();
goto parse;
}
line = buffer.substr(0, end);
buffer.erase(0, end + EOL_SIZE);
goto parse;
parse:
if (!line.size())
continue;
/* are we a comment? */
if (!in_multiline_comment && is_comment(line, &in_multiline_comment))
{
/* our line is a comment. */
if (!in_multiline_comment)
{
/* the entire line is a comment, skip it. */
continue;
}
}
/* handle our cases */
if (in_multiline_comment)
{
// we need to find a "*/".
offset = line.find("*/", 0);
/* skip this entire line, eh? */
if (offset == string::npos)
continue;
/* remove up to the end of the comment block. */
line.erase(0, offset + 2);
in_multiline_comment = false;
}
if (in_block)
{
/* handle settings across multiple lines */
if (in_multiline_quote)
{
/* attempt to find the end of the quote block. */
offset = line.find("\"");
if (offset == string::npos)
{
/* append the whole line to the quote. */
current_setting += line;
current_setting += "\n";
continue;
}
/* only append part of the line to the setting. */
current_setting.append(line.c_str(), offset + 1);
line.erase(0, offset + 1);
/* append the setting to the config block. */
if (current_block == "" || current_variable == "")
{
sLog.outError("Quote without variable.");
return false;
}
/* apply the setting */
apply_setting(current_setting, current_setting_struct);
/* the setting is done, append it to the current block. */
current_block_map[ahash(current_variable)] = current_setting_struct;
#ifdef _CONFIG_DEBUG
sLog.outDebug("Block: '%s', Setting: '%s', Value: '%s'", current_block.c_str(), current_variable.c_str(), current_setting_struct.AsString.c_str());
#endif
/* no longer doing this setting, or in a quote. */
current_setting = "";
current_variable = "";
in_multiline_quote = false;
}
/* remove any leading spaces */
remove_spaces(line);
if (!line.size())
continue;
/* our target is a *setting*. look for an '=' sign, this is our seperator. */
offset = line.find("=");
if (offset != string::npos)
{
ASSERT(current_variable == "");
current_variable = line.substr(0, offset);
/* remove any spaces from the end of the setting */
remove_all_spaces(current_variable);
/* remove the directive *and* the = from the line */
line.erase(0, offset + 1);
}
/* look for the opening quote. this signifies the start of a setting. */
offset = line.find("\"");
if (offset != string::npos)
{
ASSERT(current_setting == "");
ASSERT(current_variable != "");
/* try and find the ending quote */
end = line.find("\"", offset + 1);
if (end != string::npos)
{
/* the closing quote is on the same line, oh goody. */
current_setting = line.substr(offset + 1, end - offset - 1);
/* erase up to the end */
line.erase(0, end + 1);
/* apply the setting */
apply_setting(current_setting, current_setting_struct);
/* the setting is done, append it to the current block. */
current_block_map[ahash(current_variable)] = current_setting_struct;
#ifdef _CONFIG_DEBUG
sLog.outDebug("Block: '%s', Setting: '%s', Value: '%s'", current_block.c_str(), current_variable.c_str(), current_setting_struct.AsString.c_str());
#endif
/* no longer doing this setting, or in a quote. */
current_setting = "";
current_variable = "";
in_multiline_quote = false;
/* attempt to grab more settings from the same line. */
goto parse;
}
else
{
/* the closing quote is not on the same line. means we'll try and find it on
the next. */
current_setting.append(line.c_str(), offset);
/* skip to the next line. (after setting our condition first, of course :P */
in_multiline_quote = true;
continue;
}
}
/* are we at the end of the block yet? */
offset = line.find(">");
if (offset != string::npos)
{
line.erase(0, offset + 1);
// freeeee!
in_block = false;
/* assign this block to the main "big" map. */
m_settings[ahash(current_block)] = current_block_map;
/* erase all data for this so it doesn't seep through */
current_block_map.clear();
current_setting = "";
current_variable = "";
current_block = "";
}
}
else
{
/* we're not in a block. look for the start of one. */
offset = line.find("<");
if (offset != string::npos)
{
in_block = true;
/* whee, a block! let's cut the string and re-parse. */
line.erase(0, offset + 1);
/* find the name of the block first, though. */
offset = line.find(" ");
if (offset != string::npos)
{
current_block = line.substr(0, offset);
line.erase(0, offset + 1);
}
else
{
sLog.outError("Block without name.");
return false;
}
/* skip back */
goto parse;
}
}
}
}
catch (...)
{
sLog.outError("Exception in config parsing.");
return false;
}
/* handle any errors */
if (in_block)
{
sLog.outError("Unterminated block.");
return false;
}
if (in_multiline_comment)
{
sLog.outError("Unterminated comment.");
return false;
}
if (in_multiline_quote)
{
sLog.outError("Unterminated quote.");
return false;
}
/* we're all good :) */
return true;
}
return false;
}
uint32 ahash(string & str)
{
return ahash(str.c_str());
}
