Operating System Design : The Xinu Approach /

Wedi'i Gadw mewn:

Manylion Llyfryddiaeth
Prif Awdur:	Comer, Douglas E. (autor)
Fformat:	Llyfr
Iaith:	Saesneg
Cyhoeddwyd:	Boca Ratón, EUA : CRC Press, 2015, c2015
Rhifyn:	2a edición
Pynciau:	Sistemas Operativos - > Tema Principal Redes de Computadoras Sistemas Computacionales Ingeniería Computacional
Tagiau:	Ychwanegu Tag Dim Tagiau, Byddwch y cyntaf i dagio'r cofnod hwn!

Manylion daliadau o IT1
Rhif Galw:	005. 43 COM
Ejemplar 0500385309	Disponible Préstamo 7 días a 90	Casgliad: Colección General	Nodiadau: Ubicar en Nivel 1 Área de Colección General

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
language	"cy"
ui	"standard"
VUFIND_SESSION	"sr5l5h5n0bfngoij67h3drehhe"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1784504052.0723 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "sr5l5h5n0bfngoij67h3drehhe" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#958}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1525}
SessionHelper	Laminas\Stdlib\ArrayObject {#1622}

Server/Request Data

Key	Value
REDIRECT_SCRIPT_URL	"/vufind/Record/000554225"
REDIRECT_SCRIPT_URI	"https://opac.biblio.iteso.mx/vufind/Record/000554225"
REDIRECT_HTTPS	"on"
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_VUFIND_ENV	"development"
REDIRECT_SSL_TLS_SNI	"opac.biblio.iteso.mx"
REDIRECT_STATUS	"200"
SCRIPT_URL	"/vufind/Record/000554225"
SCRIPT_URI	"https://opac.biblio.iteso.mx/vufind/Record/000554225"
HTTPS	"on"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
VUFIND_ENV	"development"
SSL_TLS_SNI	"opac.biblio.iteso.mx"
SSL_SERVER_S_DN_C	"MX"
SSL_SERVER_S_DN_ST	"Jalisco"
SSL_SERVER_S_DN_L	"San Pedro Tlaquepaque"
SSL_SERVER_S_DN_O	"ITESO, A.C."
SSL_SERVER_S_DN_CN	"*.biblio.iteso.mx"
SSL_SERVER_I_DN_C	"US"
SSL_SERVER_I_DN_O	"DigiCert Inc"
SSL_SERVER_I_DN_CN	"DigiCert Global G2 TLS RSA SHA256 2020 CA1"
SSL_SERVER_SAN_DNS_0	"*.biblio.iteso.mx"
SSL_SERVER_SAN_DNS_1	"biblio.iteso.mx"
SSL_VERSION_INTERFACE	"mod_ssl/2.4.58"
SSL_VERSION_LIBRARY	"OpenSSL/3.0.13"
SSL_PROTOCOL	"TLSv1.3"
SSL_SECURE_RENEG	"true"
SSL_COMPRESS_METHOD	"NULL"
SSL_CIPHER	"TLS_AES_256_GCM_SHA384"
SSL_CIPHER_EXPORT	"false"
SSL_CIPHER_USEKEYSIZE	"256"
SSL_CIPHER_ALGKEYSIZE	"256"
SSL_CLIENT_VERIFY	"NONE"
SSL_SERVER_M_VERSION	"3"
SSL_SERVER_M_SERIAL	"0BC3A78C54193CE0888ED01213EB5B19"
SSL_SERVER_V_START	"Aug 15 00:00:00 2025 GMT"
SSL_SERVER_V_END	"Sep 8 23:59:59 2026 GMT"
SSL_SERVER_S_DN	"CN=*.biblio.iteso.mx,O=ITESO\, A.C.,L=San Pedro Tlaquepaque,ST=Jalisco,C=MX"
SSL_SERVER_I_DN	"CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1,O=DigiCert Inc,C=US"
SSL_SERVER_A_KEY	"rsaEncryption"
SSL_SERVER_A_SIG	"sha256WithRSAEncryption"
SSL_SESSION_ID	"f35b24c4824f879186331048eb33a088cc24d4f5fccd443fc30f44ed55bdf218"
SSL_SESSION_RESUMED	"Initial"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"language=cy; ui=standard; VUFIND_SESSION=sr5l5h5n0bfngoij67h3drehhe"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"opac.biblio.iteso.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.58 (Ubuntu) Server at opac.biblio.iteso.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.58 (Ubuntu)"
SERVER_NAME	"opac.biblio.iteso.mx"
SERVER_ADDR	"148.201.128.113"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.138"
DOCUMENT_ROOT	"/var/www/html"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	"/vufind"
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"webmaster@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"30560"
REDIRECT_URL	"/vufind/Record/000554225"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/vufind/Record/000554225"
SCRIPT_NAME	"/vufind/index.php"
PHP_SELF	"/vufind/index.php"
REQUEST_TIME_FLOAT	1784504052.0527
REQUEST_TIME	1784504052

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
language	"cy"
ui	"standard"
VUFIND_SESSION	"sr5l5h5n0bfngoij67h3drehhe"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1784504052.0723 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "sr5l5h5n0bfngoij67h3drehhe" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#958}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1525}
SessionHelper	Laminas\Stdlib\ArrayObject {#1622}

Server/Request Data

Key	Value
REDIRECT_SCRIPT_URL	"/vufind/Record/000554225"
REDIRECT_SCRIPT_URI	"https://opac.biblio.iteso.mx/vufind/Record/000554225"
REDIRECT_HTTPS	"on"
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_VUFIND_ENV	"development"
REDIRECT_SSL_TLS_SNI	"opac.biblio.iteso.mx"
REDIRECT_STATUS	"200"
SCRIPT_URL	"/vufind/Record/000554225"
SCRIPT_URI	"https://opac.biblio.iteso.mx/vufind/Record/000554225"
HTTPS	"on"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
VUFIND_ENV	"development"
SSL_TLS_SNI	"opac.biblio.iteso.mx"
SSL_SERVER_S_DN_C	"MX"
SSL_SERVER_S_DN_ST	"Jalisco"
SSL_SERVER_S_DN_L	"San Pedro Tlaquepaque"
SSL_SERVER_S_DN_O	"ITESO, A.C."
SSL_SERVER_S_DN_CN	"*.biblio.iteso.mx"
SSL_SERVER_I_DN_C	"US"
SSL_SERVER_I_DN_O	"DigiCert Inc"
SSL_SERVER_I_DN_CN	"DigiCert Global G2 TLS RSA SHA256 2020 CA1"
SSL_SERVER_SAN_DNS_0	"*.biblio.iteso.mx"
SSL_SERVER_SAN_DNS_1	"biblio.iteso.mx"
SSL_VERSION_INTERFACE	"mod_ssl/2.4.58"
SSL_VERSION_LIBRARY	"OpenSSL/3.0.13"
SSL_PROTOCOL	"TLSv1.3"
SSL_SECURE_RENEG	"true"
SSL_COMPRESS_METHOD	"NULL"
SSL_CIPHER	"TLS_AES_256_GCM_SHA384"
SSL_CIPHER_EXPORT	"false"
SSL_CIPHER_USEKEYSIZE	"256"
SSL_CIPHER_ALGKEYSIZE	"256"
SSL_CLIENT_VERIFY	"NONE"
SSL_SERVER_M_VERSION	"3"
SSL_SERVER_M_SERIAL	"0BC3A78C54193CE0888ED01213EB5B19"
SSL_SERVER_V_START	"Aug 15 00:00:00 2025 GMT"
SSL_SERVER_V_END	"Sep 8 23:59:59 2026 GMT"
SSL_SERVER_S_DN	"CN=*.biblio.iteso.mx,O=ITESO\, A.C.,L=San Pedro Tlaquepaque,ST=Jalisco,C=MX"
SSL_SERVER_I_DN	"CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1,O=DigiCert Inc,C=US"
SSL_SERVER_A_KEY	"rsaEncryption"
SSL_SERVER_A_SIG	"sha256WithRSAEncryption"
SSL_SESSION_ID	"f35b24c4824f879186331048eb33a088cc24d4f5fccd443fc30f44ed55bdf218"
SSL_SESSION_RESUMED	"Initial"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"language=cy; ui=standard; VUFIND_SESSION=sr5l5h5n0bfngoij67h3drehhe"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"opac.biblio.iteso.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.58 (Ubuntu) Server at opac.biblio.iteso.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.58 (Ubuntu)"
SERVER_NAME	"opac.biblio.iteso.mx"
SERVER_ADDR	"148.201.128.113"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.138"
DOCUMENT_ROOT	"/var/www/html"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	"/vufind"
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"webmaster@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"30560"
REDIRECT_URL	"/vufind/Record/000554225"
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/vufind/Record/000554225"
SCRIPT_NAME	"/vufind/index.php"
PHP_SELF	"/vufind/index.php"
REQUEST_TIME_FLOAT	1784504052.0527
REQUEST_TIME	1784504052

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Operating System Design : The Xinu Approach /

Eitemau Tebyg

Environment & details:

Environment & details: