ProxyWidget *DockContainer::loadModule(ConfigModule *module)
{
QApplication::setOverrideCursor(waitCursor);
ProxyWidget *widget = _modulew->load(module);
if(widget)
{
_module = module;
connect(_module, SIGNAL(childClosed()), SLOT(removeModule()));
connect(_module, SIGNAL(changed(ConfigModule *)), SIGNAL(changedModule(ConfigModule *)));
connect(widget, SIGNAL(quickHelpChanged()), SLOT(quickHelpChanged()));
raiseWidget(_modulew);
emit newModule(widget->caption(), module->docPath(), widget->quickHelp());
}
else
{
raiseWidget(_basew);
emit newModule(_basew->caption(), "", "");
}
QApplication::restoreOverrideCursor();
return widget;
}
void DockContainer::removeModule()
{
raiseWidget(_basew);
deleteModule();
if(_basew)
emit newModule(_basew->caption(), "", "");
else
emit newModule("", "", "");
}
/*
* Forking is a relatively cheap way to create a new client. The new
* client record shares the IO descriptors. To avoid interference, we
* limit children to only produce output by closing the input-side.
*
* If the father itself is a temporary client, let the new child depend
* on the grandfather.
*/
Client
MCforkClient(Client father)
{
Client son = NULL;
if (father == NULL)
return NULL;
if (father->father != NULL)
father = father->father;
if ((son = MCinitClient(father->user, father->fdin, father->fdout))) {
son->fdin = NULL;
son->fdout = father->fdout;
son->bak = NULL;
son->yycur = 0;
son->father = father;
son->scenario = father->scenario;
if (son->prompt)
GDKfree(son->prompt);
son->prompt = GDKstrdup(father->prompt);
son->promptlength = strlen(father->prompt);
/* reuse the scopes wherever possible */
if (son->nspace == 0)
son->nspace = newModule(NULL, putName("child", 5));
son->nspace->outer = father->nspace->outer;
}
return son;
}
/*
* The MonetDB server uses a startup script to boot the system.
* This script is an ordinary MAL program, but will mostly
* consist of include statements to load modules of general interest.
* The startup script is run as user Admin.
*/
int
malBootstrap(void)
{
Client c;
str msg, bootfile = "mal_init", s;
c = MCinitClient((oid) 0, 0, 0);
assert(c != NULL);
c->nspace = newModule(NULL, putName("user", 4));
initLibraries();
if ( (msg = defaultScenario(c)) ) {
GDKfree(msg);
GDKerror("Failed to initialise default scenario");
return 0;
}
MSinitClientPrg(c, "user", "main");
(void) MCinitClientThread(c);
s = malInclude(c, bootfile, 0);
if (s != NULL) {
mnstr_printf(GDKout, "!%s\n", s);
GDKfree(s);
return 0;
}
pushEndInstruction(c->curprg->def);
chkProgram(c->fdout, c->nspace, c->curprg->def);
if (c->curprg->def->errors)
showErrors(c);
s = MALengine(c);
if (s)
GDKfree(s);
return 1;
}
/*
* HandleLibLoad - process library loaded
*/
void HandleLibLoad( int type, HANDLE hmod )
{
static MODULEENTRY me;
if( MyModuleFindHandle( &me, hmod ) ) {
newModule( hmod, me.szExePath, type );
}
} /* HandleLibLoad */
void DockContainer::setBaseWidget(QWidget *widget)
{
removeWidget( _basew );
delete _basew;
_basew = 0;
if (!widget) return;
_basew = widget;
addWidget( _basew );
raiseWidget( _basew );
emit newModule(widget->caption(), "", "");
}
/**
* Open a file and set it as the current listened file.
*/
void MainWindow::setCurrentFile(QString file)
{
this->closeCurrentFile();
disconnect(&this->model, SIGNAL(newLogEntries(int)), 0, 0);
this->currentFile = new QFile(this->currentDir.absolutePath() + '/' + file);
if (currentFile->exists() && this->currentFile->open(QIODevice::ReadOnly))
{
this->model.setDataSource(this->currentFile);
this->refreshFilters();
// New messages can be logged after the file is loaded, thus some new severities/modules/threads can appear.
connect(&this->model, SIGNAL(newSeverity(QString)), this->severities, SLOT(addItem(const QString&)));
connect(&this->model, SIGNAL(newModule(QString)), this->modules, SLOT(addItem(const QString&)));
connect(&this->model, SIGNAL(newThread(QString)), this->threads, SLOT(addItem(const QString&)));
this->ui->tblLog->scrollToBottom();
connect(&this->model, SIGNAL(newLogEntries(int)), this, SLOT(newLogEntries(int)));
}
/**
* Determine all loaded modules as well as the process module itself for the given process id.
*/
NaviError LinuxSystem::fillModules(pid_t pid, ModulesMap& modules) {
std::string filename = "/proc/" + zylib::zycon::toString(pid) + "/maps";
msglog->log(LOG_ALL, "Trying to read the modules map from file %s",
filename.c_str());
std::ifstream file(filename.c_str());
if (!file) {
msglog->log(LOG_ALWAYS, "Error: Couldn't read modules map file");
return NaviErrors::COULDNT_READ_MEMORY;
}
std::vector < std::string > lines;
std::string line;
while (std::getline(file, line)) {
msglog->log(LOG_ALL, "Successfully read line %s from modules map file",
line.c_str());
lines.push_back(line);
}
// 08048000-08053000 r-xp 00000000 08:01 282412 /usr/bin/kdeinit
// 08053000-08054000 r--p 0000a000 08:01 282412 /usr/bin/kdeinit
// 08054000-08055000 rw-p 0000b000 08:01 282412 /usr/bin/kdeinit
// 09f73000-0a016000 rw-p 09f73000 00:00 0 [heap]
// b6638000-b6672000 rw-p b6672000 00:00 0
// b66bb000-b66d9000 r-xp 00000000 08:01 352021 /usr/lib/kde3/plugins/styles/plastik.so
// b66d9000-b66da000 r--p 0001d000 08:01 352021 /usr/lib/kde3/plugins/styles/plastik.so
// b66da000-b66db000 rw-p 0001e000 08:01 352021 /usr/lib/kde3/plugins/styles/plastik.so
// b66db000-b66e1000 r--s 00000000 08:01 396230 /var/cache/fontconfig/945677eb7aeaf62f1d50efc3fb3ec7d8-x86.cache-2
// b66e1000-b66e4000 r--s 00000000 08:01 396239 /var/cache/fontconfig/e383d7ea5fbe662a33d9b44caf393297-x86.cache-2
// b66e4000-b66e5000 r--s 00000000 08:01 396225 /var/cache/fontconfig/4c73fe0c47614734b17d736dbde7580a-x86.cache-2
// b66e5000-b66e8000 r--s 00000000 08:01 396231 /var/cache/fontconfig/a755afe4a08bf5b97852ceb7400b47bc-x86.cache-2
// b66e8000-b66ef000 r--s 00000000 08:01 396608 /var/cache/fontconfig/6d41288fd70b0be22e8c3a91e032eec0-x86.cache-2
// b66ef000-b66f7000 r--s 00000000 08:01 396240 /var/cache/fontconfig/e3de0de479f42330eadf588a55fb5bf4-x86.cache-2
// b66f7000-b6702000 r--s 00000000 08:01 396220 /var/cache/fontconfig/0f34bcd4b6ee430af32735b75db7f02b-x86.cache-2
// b6702000-b6709000 r--s 00000000 08:01 396234 /var/cache/fontconfig/d52a8644073d54c13679302ca1180695-x86.cache-2
std::string lastName = "";
CPUADDRESS start = 0;
CPUADDRESS end = 0;
for (std::vector<std::string>::iterator Iter = lines.begin();
Iter != lines.end(); ++Iter) {
std::string line = *Iter;
size_t position = line.find("/");
if (position != std::string::npos) {
// OK, we found a line with a name; now we gotta figure out if we found a new module
// or just with a new section in the same module.
std::string name = line.substr(position);
// TODO: Only works in 32bit platforms
std::string startString = Iter->substr(0, 8);
std::string endString = Iter->substr(9, 8);
if (name != lastName) {
// We found a new module, so we can take the information from the previous
// module and add the previous module to the list of modules.
if (lastName != "") {
Module newModule(getModuleName(lastName), lastName, start,
end - start);
modules.insert(std::make_pair(lastName, newModule));
}
lastName = name;
start = zylib::zycon::parseHexString < CPUADDRESS > (startString);
end = zylib::zycon::parseHexString < CPUADDRESS > (endString);
} else {
// The module in the current line is the same module we already processed
// in the previous line. Only the end information has to be updated in this
// case.
end = zylib::zycon::parseHexString < CPUADDRESS > (endString);
}
} else if (lastName != "") {
// We found a line without a name and the previous module has
// a valid name => Add the previous module to the list of modules.
Module newModule(getModuleName(lastName), lastName, start, end - start);
modules.insert(std::make_pair(lastName, newModule));
lastName = "";
}
}
if (lastName != "") {
// Add the last module in the list.
Module newModule(getModuleName(lastName), lastName, start, end - start);
modules.insert(std::make_pair(lastName, newModule));
}
return NaviErrors::SUCCESS;
}
static rpmRC processPolicies(rpmSpec spec, Package pkg, int test)
{
const char *path = NULL;
char *name = NULL;
char *types = NULL;
uint32_t flags = 0;
poptContext optCon = NULL;
rpmRC rc = RPMRC_FAIL;
struct poptOption optionsTable[] = {
{"name", 'n', POPT_ARG_STRING, &name, 'n', NULL, NULL},
{"types", 't', POPT_ARG_STRING, &types, 't', NULL, NULL},
{"base", 'b', POPT_ARGFLAG_OR, &flags, RPMPOL_FLAG_BASE, NULL, NULL},
POPT_TABLEEND
};
if (!spec || !pkg) {
goto exit;
}
for (ARGV_const_t pol = pkg->policyList; *pol != NULL; pol++) {
ModuleRec mod;
const char *line = *pol;
const char **argv = NULL;
int argc = 0;
int err;
if ((err = poptParseArgvString(line, &argc, &argv))) {
rpmlog(RPMLOG_ERR, _("Error parsing %s: %s\n"),
line, poptStrerror(err));
goto exit;
}
if (!rstreq(argv[0], "%semodule")) {
rpmlog(RPMLOG_ERR, _("Expecting %%semodule tag: %s\n"), line);
goto exit;
}
optCon = poptGetContext(NULL, argc, argv, optionsTable, 0);
while (poptGetNextOpt(optCon) > 0) {
}
path = poptGetArg(optCon);
if (!path) {
rpmlog(RPMLOG_ERR, _("Missing module path in line: %s\n"),
line);
goto exit;
}
if (poptPeekArg(optCon)) {
rpmlog(RPMLOG_ERR, _("Too many arguments in line: %s\n"),
line);
goto exit;
}
mod = newModule(path, name, types, flags);
if (!mod) {
goto exit;
}
if (writeModuleToHeader(mod, pkg) != RPMRC_OK) {
freeModule(mod);
goto exit;
}
freeModule(mod);
}
rc = RPMRC_OK;
exit:
return rc;
}
void DockContainer::quickHelpChanged()
{
if(_module && _module->module())
emit newModule(_module->module()->caption(), _module->docPath(), _module->module()->quickHelp());
}
void
Interpreter::loadModuleRecursive (const string &moduleName)
{
debug ("Interpreter::loadModuleRecursive "
"(moduleName = " << moduleName << ")");
if (moduleIsLoadedInternal (moduleName))
{
debug ("\talready loaded");
return;
}
//
// Using the module search path, locate the file that contains the
// source code for the module. Open the file.
//
string fileName = findModule (moduleName);
ifstream file (fileName.c_str());
if (!file)
{
THROW_ERRNO ("Cannot load CTL module \"" << moduleName << "\". "
"Opening file \"" << fileName << "\" for reading "
"failed (%T).");
}
debug ("\tloading from file \"" << fileName << "\"");
Module *module = 0;
LContext *lcontext = 0;
try
{
//
// Create a Module, an Lcontext and a Parser
//
module = newModule (moduleName, fileName);
_data->moduleSet.addModule (module);
lcontext = newLContext (file, module, _data->symtab);
Parser parser (*lcontext, *this);
//
// Parse the source code and generate executable code
// for the module
//
debug ("\tparsing input");
SyntaxNodePtr syntaxTree = parser.parseInput ();
if (syntaxTree && lcontext->numErrors() == 0)
{
debug ("\tgenerating code");
syntaxTree->generateCode (*lcontext);
}
if (lcontext->numErrors() > 0)
{
lcontext->printDeclaredErrors();
THROW (LoadModuleExc,
"Failed to load CTL module \"" << moduleName << "\".");
}
//
// Run the module's initialization code
//
debug ("\trunning module initialization code");
module->runInitCode();
//
// Cleanup: the LContext and the module's local symbols
// are no longer needed, but we keep the global symbols.
//
debug ("\tcleanup");
delete lcontext;
_data->symtab.deleteAllLocalSymbols (module);
}
catch (...)
{
//
// Something went wrong while loading the module, clean up
//
delete lcontext;
_data->symtab.deleteAllSymbols (module);
_data->moduleSet.removeModule (moduleName);
throw;
}
}
void
MSscheduleClient(str command, str challenge, bstream *fin, stream *fout)
{
char *user = command, *algo = NULL, *passwd = NULL, *lang = NULL;
char *database = NULL, *s, *dbname;
Client c;
/* decode BIG/LIT:user:{cypher}passwordchal:lang:database: line */
/* byte order */
s = strchr(user, ':');
if (s) {
*s = 0;
mnstr_set_byteorder(fin->s, strcmp(user, "BIG") == 0);
user = s + 1;
} else {
mnstr_printf(fout, "!incomplete challenge '%s'\n", user);
exit_streams(fin, fout);
GDKfree(command);
return;
}
/* passwd */
s = strchr(user, ':');
if (s) {
*s = 0;
passwd = s + 1;
/* decode algorithm, i.e. {plain}mypasswordchallenge */
if (*passwd != '{') {
mnstr_printf(fout, "!invalid password entry\n");
exit_streams(fin, fout);
GDKfree(command);
return;
}
algo = passwd + 1;
s = strchr(algo, '}');
if (!s) {
mnstr_printf(fout, "!invalid password entry\n");
exit_streams(fin, fout);
GDKfree(command);
return;
}
*s = 0;
passwd = s + 1;
} else {
mnstr_printf(fout, "!incomplete challenge '%s'\n", user);
exit_streams(fin, fout);
GDKfree(command);
return;
}
/* lang */
s = strchr(passwd, ':');
if (s) {
*s = 0;
lang = s + 1;
} else {
mnstr_printf(fout, "!incomplete challenge, missing language\n");
exit_streams(fin, fout);
GDKfree(command);
return;
}
/* database */
s = strchr(lang, ':');
if (s) {
*s = 0;
database = s + 1;
/* we can have stuff following, make it void */
s = strchr(database, ':');
if (s)
*s = 0;
}
dbname = GDKgetenv("gdk_dbname");
if (database != NULL && database[0] != '\0' &&
strcmp(database, dbname) != 0)
{
mnstr_printf(fout, "!request for database '%s', "
"but this is database '%s', "
"did you mean to connect to monetdbd instead?\n",
database, dbname);
/* flush the error to the client, and abort further execution */
exit_streams(fin, fout);
GDKfree(command);
return;
} else {
str err;
oid uid;
sabdb *stats = NULL;
Client root = &mal_clients[0];
/* access control: verify the credentials supplied by the user,
* no need to check for database stuff, because that is done per
* database itself (one gets a redirect) */
err = AUTHcheckCredentials(&uid, root, &user, &passwd, &challenge, &algo);
if (err != MAL_SUCCEED) {
mnstr_printf(fout, "!%s\n", err);
exit_streams(fin, fout);
GDKfree(err);
GDKfree(command);
return;
}
err = SABAOTHgetMyStatus(&stats);
if (err != MAL_SUCCEED) {
/* this is kind of awful, but we need to get rid of this
* message */
fprintf(stderr, "!SABAOTHgetMyStatus: %s\n", err);
if (err != M5OutOfMemory)
GDKfree(err);
mnstr_printf(fout, "!internal server error, "
"please try again later\n");
exit_streams(fin, fout);
GDKfree(command);
return;
}
if (stats->locked == 1) {
if (uid == 0) {
mnstr_printf(fout, "#server is running in "
"maintenance mode\n");
} else {
mnstr_printf(fout, "!server is running in "
"maintenance mode, please try again later\n");
exit_streams(fin, fout);
SABAOTHfreeStatus(&stats);
GDKfree(command);
return;
}
}
SABAOTHfreeStatus(&stats);
c = MCinitClient(uid, fin, fout);
if (c == NULL) {
if ( MCshutdowninprogress())
mnstr_printf(fout, "!system shutdown in progress, please try again later\n");
else
mnstr_printf(fout, "!maximum concurrent client limit reached "
"(%d), please try again later\n", MAL_MAXCLIENTS);
exit_streams(fin, fout);
GDKfree(command);
return;
}
/* move this back !! */
if (c->nspace == 0) {
c->nspace = newModule(NULL, putName("user", 4));
c->nspace->outer = mal_clients[0].nspace->outer;
}
if ((s = setScenario(c, lang)) != NULL) {
mnstr_printf(c->fdout, "!%s\n", s);
mnstr_flush(c->fdout);
GDKfree(s);
c->mode = FINISHCLIENT;
}
if (!GDKgetenv_isyes(mal_enableflag) &&
(strncasecmp("sql", lang, 3) != 0 && uid != 0)) {
mnstr_printf(fout, "!only the 'monetdb' user can use non-sql languages. "
"run mserver5 with --set %s=yes to change this.\n", mal_enableflag);
exit_streams(fin, fout);
GDKfree(command);
return;
}
}
MSinitClientPrg(c, "user", "main");
GDKfree(command);
/* NOTE ABOUT STARTING NEW THREADS
* At this point we have conducted experiments (Jun 2012) with
* reusing threads. The implementation used was a lockless array of
* semaphores to wake up threads to do work. Experimentation on
* Linux, Solaris and Darwin showed no significant improvements, in
* most cases no improvements at all. Hence the following
* conclusion: thread reuse doesn't save up on the costs of just
* forking new threads. Since the latter means no difficulties of
* properly maintaining a pool of threads and picking the workers
* out of them, it is favourable just to start new threads on
* demand. */
/* fork a new thread to handle this client */
mnstr_settimeout(c->fdin->s, 50, GDKexiting);
MSserveClient(c);
}
int register_module( std::vector<ModuleReg> & modules, ModuleMap & functions, std::vector<ModuleFunction> & timedfunctions, const char * moduleName )
{
/* open the module with the name moduleName */
/* load the module (if possible) */
void * handle = NULL;
char * error = NULL;
if ( moduleName == NULL ){
syslog( LOG_ERR, "Unable to load Module, no module name given" );
return 0;
}
handle = dlopen( moduleName, RTLD_LAZY );
if ( handle == NULL ){
syslog( LOG_ERR, "Unable to load Module %s : %s", moduleName, dlerror() );
return 0;
}
error = dlerror(); /* clear any possible error handler */
/* now call the register_module function */
int ( *registerFunction )( std::vector<CommandFunctionPair> & );
registerFunction = ( int (*)( std::vector<CommandFunctionPair> &) ) dlsym( handle, "load" );
if ( (error = dlerror()) != NULL) {
syslog( LOG_ERR, "Unable to load Module %s : Module lacks load method.", moduleName );
return 0;
}
ModuleReg newModule( moduleName, handle );
modules.push_back( newModule );
std::vector<CommandFunctionPair> pairs;
(*registerFunction)( pairs );
for ( std::vector<CommandFunctionPair>::iterator funcref = pairs.begin();
funcref != pairs.end();
funcref++ ){
/* create the appropriate structure to place this information in */
ModuleFunction newFunction( funcref->function, handle, funcref->timeout, funcref->user_id, funcref->group_id, funcref->version, funcref->owner, funcref->logging);
if ( newFunction.timeout != -1 ){
syslog( LOG_INFO, " Registering timed function : %s:%d", funcref->command.c_str(), newFunction.timeout );
timedfunctions.push_back( newFunction );
continue;
}
syslog( LOG_INFO, " Registering command : %s", funcref->command.c_str() );
if ( newFunction.version == 0 ){
syslog( LOG_ERR, "Unable to determine action for command \"%s\", skipping definition", funcref->command.c_str() );
continue;
}
if ( functions[ funcref->command ].version >= newFunction.version ){
syslog( LOG_WARNING, " Command \"%s\" already exists and is of later version \"%d\" (thisver:%d)", funcref->command.c_str(), functions[ funcref->command ].version, newFunction.version );
continue;
} else if ( functions[ funcref->command ].version < newFunction.version && functions[ funcref->command ].version > 0 ){
syslog( LOG_WARNING, " Command \"%s\" is already defined but of an earlier version (%d), using this one instead (thisver:%d)", funcref->command.c_str(), functions[ funcref->command ].version, newFunction.version );
}
functions[ funcref->command ] = newFunction;
}
return 1;
}
