Public Member Functions
	_dependsOn ($parent, $child, &$checked)
	_getDepDB ()
	_lock ($mode=LOCK_EX)
	_registerDep (&$data, &$pkg, $dep, $type, $group=false)
	_setPackageDeps (&$data, &$pkg)
	_unlock ()
	_writeDepDB (&$deps)
	assertDepsDB ()
	dependsOn ($parent, $child)
	getDependencies (&$pkg)
	getDependentPackageDependencies (&$pkg)
	getDependentPackages (&$pkg)
	hasWriteAccess ()
	installPackage (&$package)
	rebuildDB ()
	setConfig (&$config, $depdb=false)
	uninstallPackage (&$pkg)

Static Public Member Functions
static &	singleton (&$config, $depdb=false)

Data Fields
	$_cache
	$_config
	$_depdb = false
	$_lockfile = false
	$_lockFp = false
	$_registry
	$_version = '1.0'

Detailed Description

Definition at line 36 of file DependencyDB.php.

Member Function Documentation

◆ _dependsOn()

_dependsOn	(		$parent,
			$child,
		&	$checked )

Definition at line 290 of file DependencyDB.php.

    {
        if (is_object($parent)) {
            $channel = strtolower($parent->getChannel());
            $package = strtolower($parent->getPackage());
        } else {
            $channel = strtolower($parent['channel']);
            $package = strtolower($parent['package']);
        }
 
        if (is_object($child)) {
            $depchannel = strtolower($child->getChannel());
            $deppackage = strtolower($child->getPackage());
        } else {
            $depchannel = strtolower($child['channel']);
            $deppackage = strtolower($child['package']);
        }
 
        if (isset($checked[$channel][$package][$depchannel][$deppackage])) {
            return false; // avoid endless recursion
        }
 
        $checked[$channel][$package][$depchannel][$deppackage] = true;
        if (!isset($this->_cache['dependencies'][$channel][$package])) {
            return false;
        }
 
        foreach ($this->_cache['dependencies'][$channel][$package] as $info) {
            if (isset($info['dep']['uri'])) {
                if (is_object($child)) {
                    if ($info['dep']['uri'] == $child->getURI()) {
                        return true;
                    }
                } elseif (isset($child['uri'])) {
                    if ($info['dep']['uri'] == $child['uri']) {
                        return true;
                    }
                }
                return false;
            }
 
            if (strtolower($info['dep']['channel']) == $depchannel &&
                  strtolower($info['dep']['name']) == $deppackage) {
                return true;
            }
        }
 
        foreach ($this->_cache['dependencies'][$channel][$package] as $info) {
            if (isset($info['dep']['uri'])) {
                if ($this->_dependsOn(array(
                        'uri' => $info['dep']['uri'],
                        'package' => $info['dep']['name']), $child, $checked)) {
                    return true;
                }
            } else {
                if ($this->_dependsOn(array(
                        'channel' => $info['dep']['channel'],
                        'package' => $info['dep']['name']), $child, $checked)) {
                    return true;
                }
            }
        }
 
        return false;
    }

References _dependsOn().

Referenced by _dependsOn(), and dependsOn().

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◆ _getDepDB()

_getDepDB ( )

Load the dependency database from disk, or return the cache

Returns: array|PEAR_Error

Definition at line 546 of file DependencyDB.php.

    {
        if (!$this->hasWriteAccess()) {
            return array('_version' => $this->_version);
        }
 
        if (isset($this->_cache)) {
            return $this->_cache;
        }
 
        if (!$fp = fopen($this->_depdb, 'r')) {
            $err = PEAR::raiseError("Could not open dependencies file `".$this->_depdb."'");
            return $err;
        }
 
        clearstatcache();
        fclose($fp);
        $data = @unserialize(file_get_contents($this->_depdb));
        $this->_cache = $data;
        return $data;
    }

References $_cache, and hasWriteAccess().

Referenced by assertDepsDB(), dependsOn(), getDependencies(), getDependentPackageDependencies(), getDependentPackages(), installPackage(), and uninstallPackage().

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◆ _lock()

_lock ( $mode = LOCK_EX )

Register usage of the dependency DB to prevent race conditions

Parameters

int	one of the LOCK_* constants

Returns: true|PEAR_Error @access private

Definition at line 476 of file DependencyDB.php.

    {
        if (stristr(php_uname(), 'Windows 9')) {
            return true;
        }
 
        if ($mode != LOCK_UN && is_resource($this->_lockFp)) {
            // XXX does not check type of lock (LOCK_SH/LOCK_EX)
            return true;
        }
 
        $open_mode = 'w';
        // XXX People reported problems with LOCK_SH and 'w'
        if ($mode === LOCK_SH) {
            if (!file_exists($this->_lockfile)) {
                touch($this->_lockfile);
            } elseif (!is_file($this->_lockfile)) {
                return PEAR::raiseError('could not create Dependency lock file, ' .
                    'it exists and is not a regular file');
            }
            $open_mode = 'r';
        }
 
        if (!is_resource($this->_lockFp)) {
            $this->_lockFp = @fopen($this->_lockfile, $open_mode);
        }
 
        if (!is_resource($this->_lockFp)) {
            $last_errormsg = '';
            $last_error = error_get_last();
            if (!empty($last_error['message'])) {
                $last_errormsg = $last_error['message'];
            }
            return PEAR::raiseError("could not create Dependency lock file" .
                                     (isset($last_errormsg) ? ": " . $last_errormsg : ""));
        }
 
        if (!(int)flock($this->_lockFp, $mode)) {
            switch ($mode) {
                case LOCK_SH: $str = 'shared';    break;
                case LOCK_EX: $str = 'exclusive'; break;
                case LOCK_UN: $str = 'unlock';    break;
                default:      $str = 'unknown';   break;
            }
 
            return PEAR::raiseError("could not acquire $str lock ($this->_lockfile)");
        }
 
        return true;
    }

Referenced by _unlock(), and _writeDepDB().

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◆ _registerDep()

_registerDep	(	&	$data,
		&	$pkg,
			$dep,
			$type,
			$group = false )

Parameters

array	the database
PEAR_PackageFile_v1\|PEAR_PackageFile_v2
array	the specific dependency
required\|optional	whether this is a required or an optional dep
string\|false	dependency group this dependency is from, or false for ordinary dep

Definition at line 714 of file DependencyDB.php.

    {
        $info = array(
            'dep'   => $dep,
            'type'  => $type,
            'group' => $group
        );
 
        $dep  = array_map('strtolower', $dep);
        $depchannel = isset($dep['channel']) ? $dep['channel'] : '__uri';
        if (!isset($data['dependencies'])) {
            $data['dependencies'] = array();
        }
 
        $channel = strtolower($pkg->getChannel());
        $package = strtolower($pkg->getPackage());
 
        if (!isset($data['dependencies'][$channel])) {
            $data['dependencies'][$channel] = array();
        }
 
        if (!isset($data['dependencies'][$channel][$package])) {
            $data['dependencies'][$channel][$package] = array();
        }
 
        $data['dependencies'][$channel][$package][] = $info;
        if (isset($data['packages'][$depchannel][$dep['name']])) {
            $found = false;
            foreach ($data['packages'][$depchannel][$dep['name']] as $i => $p) {
                if ($p['channel'] == $channel && $p['package'] == $package) {
                    $found = true;
                    break;
                }
            }
        } else {
            if (!isset($data['packages'])) {
                $data['packages'] = array();
            }
 
            if (!isset($data['packages'][$depchannel])) {
                $data['packages'][$depchannel] = array();
            }
 
            if (!isset($data['packages'][$depchannel][$dep['name']])) {
                $data['packages'][$depchannel][$dep['name']] = array();
            }
 
            $found = false;
        }
 
        if (!$found) {
            $data['packages'][$depchannel][$dep['name']][] = array(
                'channel' => $channel,
                'package' => $package
            );
        }
    }

Referenced by _setPackageDeps().

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◆ _setPackageDeps()

_setPackageDeps	(	&	$data,
		&	$pkg )

Register all dependencies from a package in the dependencies database, in essence "installing" the package's dependency information

Parameters

array	the database
PEAR_PackageFile_v1\|PEAR_PackageFile_v2	@access private

Definition at line 599 of file DependencyDB.php.

    {
        $pkg->setConfig($this->_config);
        if ($pkg->getPackagexmlVersion() == '1.0') {
            $gen = &$pkg->getDefaultGenerator();
            $deps = $gen->dependenciesToV2();
        } else {
            $deps = $pkg->getDeps(true);
        }
 
        if (!$deps) {
            return;
        }
 
        if (!is_array($data)) {
            $data = array();
        }
 
        if (!isset($data['dependencies'])) {
            $data['dependencies'] = array();
        }
 
        $channel = strtolower($pkg->getChannel());
        $package = strtolower($pkg->getPackage());
 
        if (!isset($data['dependencies'][$channel])) {
            $data['dependencies'][$channel] = array();
        }
 
        $data['dependencies'][$channel][$package] = array();
        if (isset($deps['required']['package'])) {
            if (!isset($deps['required']['package'][0])) {
                $deps['required']['package'] = array($deps['required']['package']);
            }
 
            foreach ($deps['required']['package'] as $dep) {
                $this->_registerDep($data, $pkg, $dep, 'required');
            }
        }
 
        if (isset($deps['optional']['package'])) {
            if (!isset($deps['optional']['package'][0])) {
                $deps['optional']['package'] = array($deps['optional']['package']);
            }
 
            foreach ($deps['optional']['package'] as $dep) {
                $this->_registerDep($data, $pkg, $dep, 'optional');
            }
        }
 
        if (isset($deps['required']['subpackage'])) {
            if (!isset($deps['required']['subpackage'][0])) {
                $deps['required']['subpackage'] = array($deps['required']['subpackage']);
            }
 
            foreach ($deps['required']['subpackage'] as $dep) {
                $this->_registerDep($data, $pkg, $dep, 'required');
            }
        }
 
        if (isset($deps['optional']['subpackage'])) {
            if (!isset($deps['optional']['subpackage'][0])) {
                $deps['optional']['subpackage'] = array($deps['optional']['subpackage']);
            }
 
            foreach ($deps['optional']['subpackage'] as $dep) {
                $this->_registerDep($data, $pkg, $dep, 'optional');
            }
        }
 
        if (isset($deps['group'])) {
            if (!isset($deps['group'][0])) {
                $deps['group'] = array($deps['group']);
            }
 
            foreach ($deps['group'] as $group) {
                if (isset($group['package'])) {
                    if (!isset($group['package'][0])) {
                        $group['package'] = array($group['package']);
                    }
 
                    foreach ($group['package'] as $dep) {
                        $this->_registerDep($data, $pkg, $dep, 'optional',
                            $group['attribs']['name']);
                    }
                }
 
                if (isset($group['subpackage'])) {
                    if (!isset($group['subpackage'][0])) {
                        $group['subpackage'] = array($group['subpackage']);
                    }
 
                    foreach ($group['subpackage'] as $dep) {
                        $this->_registerDep($data, $pkg, $dep, 'optional',
                            $group['attribs']['name']);
                    }
                }
            }
        }
 
        if ($data['dependencies'][$channel][$package] == array()) {
            unset($data['dependencies'][$channel][$package]);
            if (!count($data['dependencies'][$channel])) {
                unset($data['dependencies'][$channel]);
            }
        }
    }

References _registerDep().

Referenced by installPackage(), and rebuildDB().

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◆ _unlock()

_unlock ( )

Release usage of dependency DB

Returns: true|PEAR_Error @access private

Definition at line 532 of file DependencyDB.php.

    {
        $ret = $this->_lock(LOCK_UN);
        if (is_resource($this->_lockFp)) {
            fclose($this->_lockFp);
        }
        $this->_lockFp = null;
        return $ret;
    }

References _lock().

Referenced by _writeDepDB().

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◆ _writeDepDB()

_writeDepDB ( & $deps )

Write out the dependency database to disk

Parameters

array the database

Returns: true|PEAR_Error @access private

Definition at line 574 of file DependencyDB.php.

    {
        if (PEAR::isError($e = $this->_lock(LOCK_EX))) {
            return $e;
        }
 
        if (!$fp = fopen($this->_depdb, 'wb')) {
            $this->_unlock();
            return PEAR::raiseError("Could not open dependencies file `".$this->_depdb."' for writing");
        }
 
        fwrite($fp, serialize($deps));
        fclose($fp);
        $this->_unlock();
        $this->_cache = $deps;
        return true;
    }

References _lock(), and _unlock().

Referenced by installPackage(), rebuildDB(), and uninstallPackage().

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◆ assertDepsDB()

assertDepsDB ( )

Create the dependency database, if it doesn't exist. Error if the database is newer than the code reading it.

Returns: void|PEAR_Error

Definition at line 164 of file DependencyDB.php.

    {
        if (!is_file($this->_depdb)) {
            $this->rebuildDB();
            return;
        }
 
        $depdb = $this->_getDepDB();
        // Datatype format has been changed, rebuild the Deps DB
        if ($depdb['_version'] < $this->_version) {
            $this->rebuildDB();
        }
 
        if ($depdb['_version'][0] > $this->_version[0]) {
            return PEAR::raiseError('Dependency database is version ' .
                $depdb['_version'] . ', and we are version ' .
                $this->_version . ', cannot continue');
        }
    }

References _getDepDB(), and rebuildDB().

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◆ dependsOn()

dependsOn	(		$parent,
			$child )

Determine whether $parent depends on $child, near or deep

Parameters

array\|PEAR_PackageFile_v2\|PEAR_PackageFile_v2
array\|PEAR_PackageFile_v2\|PEAR_PackageFile_v2

Definition at line 283 of file DependencyDB.php.

    {
        $c = array();
        $this->_getDepDB();
        return $this->_dependsOn($parent, $child, $c);
    }

References _dependsOn(), and _getDepDB().

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◆ getDependencies()

getDependencies ( & $pkg )

Get a list of dependencies of this installed package

Parameters

PEAR_PackageFile_v1|PEAR_PackageFile_v2|array

Returns: array|false

Definition at line 260 of file DependencyDB.php.

    {
        if (is_object($pkg)) {
            $channel = strtolower($pkg->getChannel());
            $package = strtolower($pkg->getPackage());
        } else {
            $channel = strtolower($pkg['channel']);
            $package = strtolower($pkg['package']);
        }
 
        $data = $this->_getDepDB();
        if (isset($data['dependencies'][$channel][$package])) {
            return $data['dependencies'][$channel][$package];
        }
 
        return false;
    }

References _getDepDB().

Referenced by getDependentPackageDependencies().

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◆ getDependentPackageDependencies()

getDependentPackageDependencies ( & $pkg )

Get a list of the actual dependencies of installed packages that depend on a package.

Parameters

PEAR_PackageFile_v1|PEAR_PackageFile_v2|array

Returns: array|false

Definition at line 213 of file DependencyDB.php.

    {
        $data = $this->_getDepDB();
        if (is_object($pkg)) {
            $channel = strtolower($pkg->getChannel());
            $package = strtolower($pkg->getPackage());
        } else if (is_array($pkg)) {
            $channel = strtolower($pkg['channel']);
            $package = strtolower($pkg['package']);
        } else {
            return false;
        }
 
        $depend = $this->getDependentPackages($pkg);
        if (!$depend) {
            return false;
        }
 
        $dependencies = array();
        foreach ($depend as $info) {
            $temp = $this->getDependencies($info);
            foreach ($temp as $dep) {
                if (
                    isset($dep['dep'], $dep['dep']['channel'], $dep['dep']['name']) &&
                    strtolower($dep['dep']['channel']) == $channel &&
                    strtolower($dep['dep']['name']) == $package
                ) {
                    if (!isset($dependencies[$info['channel']])) {
                        $dependencies[$info['channel']] = array();
                    }
 
                    if (!isset($dependencies[$info['channel']][$info['package']])) {
                        $dependencies[$info['channel']][$info['package']] = array();
                    }
                    $dependencies[$info['channel']][$info['package']][] = $dep;
                }
            }
        }
 
        return $dependencies;
    }

References _getDepDB(), getDependencies(), and getDependentPackages().

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◆ getDependentPackages()

getDependentPackages ( & $pkg )

Get a list of installed packages that depend on this package

Parameters

PEAR_PackageFile_v1|PEAR_PackageFile_v2|array

Returns: array|false

Definition at line 189 of file DependencyDB.php.

    {
        $data = $this->_getDepDB();
        if (is_object($pkg)) {
            $channel = strtolower($pkg->getChannel());
            $package = strtolower($pkg->getPackage());
        } else {
            $channel = strtolower($pkg['channel']);
            $package = strtolower($pkg['package']);
        }
 
        if (isset($data['packages'][$channel][$package])) {
            return $data['packages'][$channel][$package];
        }
 
        return false;
    }

References _getDepDB().

Referenced by getDependentPackageDependencies().

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◆ hasWriteAccess()

hasWriteAccess ( )

Definition at line 136 of file DependencyDB.php.

    {
        if (!file_exists($this->_depdb)) {
            $dir = $this->_depdb;
            while ($dir && $dir != '.') {
                $dir = dirname($dir); // cd ..
                if ($dir != '.' && file_exists($dir)) {
                    if (is_writeable($dir)) {
                        return true;
                    }
 
                    return false;
                }
            }
 
            return false;
        }
 
        return is_writeable($this->_depdb);
    }

References $_depdb.

Referenced by _getDepDB(), and rebuildDB().

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◆ installPackage()

installPackage ( & $package )

Register dependencies of a package that is being installed or upgraded

Parameters

PEAR_PackageFile_v2|PEAR_PackageFile_v2

Definition at line 360 of file DependencyDB.php.

    {
        $data = $this->_getDepDB();
        unset($this->_cache);
        $this->_setPackageDeps($data, $package);
        $this->_writeDepDB($data);
    }

References _getDepDB(), _setPackageDeps(), and _writeDepDB().

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◆ rebuildDB()

rebuildDB ( )

Rebuild the dependency DB by reading registry entries.

Returns: true|PEAR_Error

Definition at line 438 of file DependencyDB.php.

    {
        $depdb = array('_version' => $this->_version);
        if (!$this->hasWriteAccess()) {
            // allow startup for read-only with older Registry
            return $depdb;
        }
 
        $packages = $this->_registry->listAllPackages();
        if (PEAR::isError($packages)) {
            return $packages;
        }
 
        foreach ($packages as $channel => $ps) {
            foreach ($ps as $package) {
                $package = $this->_registry->getPackage($package, $channel);
                if (PEAR::isError($package)) {
                    return $package;
                }
                $this->_setPackageDeps($depdb, $package);
            }
        }
 
        $error = $this->_writeDepDB($depdb);
        if (PEAR::isError($error)) {
            return $error;
        }
 
        $this->_cache = $depdb;
        return true;
    }

References _setPackageDeps(), _writeDepDB(), and hasWriteAccess().

Referenced by assertDepsDB().

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◆ setConfig()

setConfig	(	&	$config,
			$depdb = false )

Set up the registry/location of dependency DB

Parameters

PEAR_Config\|false
string\|false	full path to the dependency database, or false to use default

Definition at line 113 of file DependencyDB.php.

    {
        if (!$config) {
            $this->_config = &PEAR_Config::singleton();
        } else {
            $this->_config = &$config;
        }
 
        $this->_registry = &$this->_config->getRegistry();
        if (!$depdb) {
            $dir = $this->_config->get('metadata_dir', null, 'pear.php.net');
            if (!$dir) {
                $dir = $this->_config->get('php_dir', null, 'pear.php.net');
            }
            $this->_depdb =  $dir . DIRECTORY_SEPARATOR . '.depdb';
        } else {
            $this->_depdb = $depdb;
        }
 
        $this->_lockfile = dirname($this->_depdb) . DIRECTORY_SEPARATOR . '.depdblock';
    }

References $config.

◆ singleton()

& singleton	(	&	$config,
			$depdb = false )

static

Get a raw dependency database. Calls setConfig() and assertDepsDB()

Parameters

PEAR_Config
string\|false	full path to the dependency database, or false to use default

Returns: PEAR_DependencyDB|PEAR_Error

Definition at line 92 of file DependencyDB.php.

    {
        $phpdir = $config->get('php_dir', null, 'pear.php.net');
        if (!isset($GLOBALS['_PEAR_DEPENDENCYDB_INSTANCE'][$phpdir])) {
            $a = new PEAR_DependencyDB;
            $GLOBALS['_PEAR_DEPENDENCYDB_INSTANCE'][$phpdir] = &$a;
            $a->setConfig($config, $depdb);
            $e = $a->assertDepsDB();
            if (PEAR::isError($e)) {
                return $e;
            }
        }
 
        return $GLOBALS['_PEAR_DEPENDENCYDB_INSTANCE'][$phpdir];
    }

References $config, and $GLOBALS.

Referenced by PEAR_Dependency2\__construct(), PEAR_Registry\_initializeDepDB(), and PEAR_Installer\sortPackagesForUninstall().

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◆ uninstallPackage()

uninstallPackage ( & $pkg )

Remove dependencies of a package that is being uninstalled, or upgraded.

Upgraded packages first uninstall, then install

Parameters

PEAR_PackageFile_v1|PEAR_PackageFile_v2|array If an array, then it must have indices 'channel' and 'package'

Definition at line 375 of file DependencyDB.php.

    {
        $data = $this->_getDepDB();
        unset($this->_cache);
        if (is_object($pkg)) {
            $channel = strtolower($pkg->getChannel());
            $package = strtolower($pkg->getPackage());
        } else {
            $channel = strtolower($pkg['channel']);
            $package = strtolower($pkg['package']);
        }
 
        if (!isset($data['dependencies'][$channel][$package])) {
            return true;
        }
 
        foreach ($data['dependencies'][$channel][$package] as $dep) {
            $found      = false;
            $depchannel = isset($dep['dep']['uri']) ? '__uri' : strtolower($dep['dep']['channel']);
            $depname    = strtolower($dep['dep']['name']);
            if (isset($data['packages'][$depchannel][$depname])) {
                foreach ($data['packages'][$depchannel][$depname] as $i => $info) {
                    if ($info['channel'] == $channel && $info['package'] == $package) {
                        $found = true;
                        break;
                    }
                }
            }
 
            if ($found) {
                unset($data['packages'][$depchannel][$depname][$i]);
                if (!count($data['packages'][$depchannel][$depname])) {
                    unset($data['packages'][$depchannel][$depname]);
                    if (!count($data['packages'][$depchannel])) {
                        unset($data['packages'][$depchannel]);
                    }
                } else {
                    $data['packages'][$depchannel][$depname] =
                        array_values($data['packages'][$depchannel][$depname]);
                }
            }
        }
 
        unset($data['dependencies'][$channel][$package]);
        if (!count($data['dependencies'][$channel])) {
            unset($data['dependencies'][$channel]);
        }
 
        if (!count($data['dependencies'])) {
            unset($data['dependencies']);
        }
 
        if (!count($data['packages'])) {
            unset($data['packages']);
        }
 
        $this->_writeDepDB($data);
    }

References _getDepDB(), and _writeDepDB().

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Field Documentation

◆ $_cache

$_cache

Definition at line 81 of file DependencyDB.php.

Referenced by _getDepDB().

◆ $_config

$_config

Definition at line 45 of file DependencyDB.php.

◆ $_depdb

$_depdb = false

Definition at line 57 of file DependencyDB.php.

Referenced by hasWriteAccess().

◆ $_lockfile

$_lockfile = false

Definition at line 63 of file DependencyDB.php.

◆ $_lockFp

$_lockFp = false

Definition at line 69 of file DependencyDB.php.

◆ $_registry

$_registry

Definition at line 51 of file DependencyDB.php.

◆ $_version

$_version = '1.0'

Definition at line 75 of file DependencyDB.php.

The documentation for this class was generated from the following file:

E:/Bearsampp-development/sandbox/core/libs/php/pear/pear/PEAR/DependencyDB.php

Public Member Functions

Static Public Member Functions

Data Fields

Detailed Description

Member Function Documentation

◆ _dependsOn()

◆ _getDepDB()

◆ _lock()

◆ _registerDep()

◆ _setPackageDeps()

◆ _unlock()

◆ _writeDepDB()

◆ assertDepsDB()

◆ dependsOn()

◆ getDependencies()

◆ getDependentPackageDependencies()

◆ getDependentPackages()

◆ hasWriteAccess()

◆ installPackage()

◆ rebuildDB()

◆ setConfig()

◆ singleton()

◆ uninstallPackage()

Field Documentation

◆ $_cache

◆ $_config

◆ $_depdb

◆ $_lockfile

◆ $_lockFp

◆ $_registry

◆ $_version