path: root/po/it/man2/readv.2.po

# Italian translation of manpages
# This file is distributed under the same license as the manpages-l10n package.
# Copyright © of this file:
# Giulio Daprelà <giulio@pluto.it>, 2005-2007.
# Marco Curreli <marcocurreli@tiscali.it>, 2013-2016, 2018, 2020, 2021.
msgid ""
msgstr ""
"Project-Id-Version: manpages-l10n 4.0.0\n"
"POT-Creation-Date: 2024-06-01 06:15+0200\n"
"PO-Revision-Date: 2021-12-16 23:58+0100\n"
"Last-Translator: Marco Curreli <marcocurreli@tiscali.it>\n"
"Language-Team: Italian <pluto-ildp@lists.pluto.it>\n"
"Language: it\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=UTF-8\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
"X-Generator: Lokalize 21.12.0\n"

#. type: TH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "readv"
msgstr "readv"

#. type: TH
#: archlinux debian-unstable opensuse-tumbleweed
#, no-wrap
msgid "2024-05-02"
msgstr "2 maggio 2024"

#. type: TH
#: archlinux debian-unstable
#, fuzzy, no-wrap
#| msgid "Linux man-pages 6.7"
msgid "Linux man-pages 6.8"
msgstr "Linux man-pages 6.7"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "NAME"
msgstr "NOME"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"readv, writev, preadv, pwritev, preadv2, pwritev2 - read or write data into "
"multiple buffers"
msgstr ""
"readv, writev, preadv, pwritev, preadv2, pwritev2 - leggono o scrivono dati "
"in buffer multipli"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "LIBRARY"
msgstr "LIBRERIA"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "Standard C library (I<libc>, I<-lc>)"
msgstr "Libreria C standard (I<libc>, I<-lc>)"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "SYNOPSIS"
msgstr "SINTASSI"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<#include E<lt>sys/uio.hE<gt>>\n"
msgstr "B<#include E<lt>sys/uio.hE<gt>>\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"B<ssize_t readv(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<);>\n"
"B<ssize_t writev(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<);>\n"
msgstr ""
"B<ssize_t readv(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<);>\n"
"B<ssize_t writev(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<);>\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"B<ssize_t preadv(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<);>\n"
"B<ssize_t pwritev(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<);>\n"
msgstr ""
"B<ssize_t preadv(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<);>\n"
"B<ssize_t pwritev(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<);>\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"B<ssize_t preadv2(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<, int >I<flags>B<);>\n"
"B<ssize_t pwritev2(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<, int >I<flags>B<);>\n"
msgstr ""
"B<ssize_t preadv2(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<, int >I<flags>B<);>\n"
"B<ssize_t pwritev2(int >I<fd>B<, const struct iovec *>I<iov>B<, int >I<iovcnt>B<,>\n"
"B<                off_t >I<offset>B<, int >I<flags>B<);>\n"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Feature Test Macro Requirements for glibc (see B<feature_test_macros>(7)):"
msgstr ""
"Macro per test di funzionalità per glibc (vedere B<feature_test_macros>(7)):"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<preadv>(), B<pwritev>():"
msgstr "B<preadv>(), B<pwritev>():"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid ""
"    Since glibc 2.19:\n"
"        _DEFAULT_SOURCE\n"
"    glibc 2.19 and earlier:\n"
"        _BSD_SOURCE\n"
msgstr ""
"    A partire da glibc 2.19:\n"
"        _DEFAULT_SOURCE\n"
"    glibc 2.19 e precedenti:\n"
"        _BSD_SOURCE\n"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "DESCRIPTION"
msgstr "DESCRIZIONE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<readv>()  system call reads I<iovcnt> buffers from the file associated "
"with the file descriptor I<fd> into the buffers described by I<iov> "
"(\"scatter input\")."
msgstr ""
"La chiamata di sistema B<readv>() legge i buffer I<iovcnt> dal file "
"associato al descrittore di file I<fd> nei buffer descritti da I<iov> "
"(\"scatter input\")."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<writev>()  system call writes I<iovcnt> buffers of data described by "
"I<iov> to the file associated with the file descriptor I<fd> (\"gather output"
"\")."
msgstr ""
"La chiamata di sistema B<writev>() scrive i buffer di dati I<iovcnt> "
"descritti da I<iov> nel file associato al descrittore di file I<fd> "
"(\"gather output\")."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid ""
#| "The pointer I<iov> points to an array of I<iovec> structures, defined in "
#| "I<E<lt>sys/uio.hE<gt>> as:"
msgid ""
"The pointer I<iov> points to an array of I<iovec> structures, described in "
"B<iovec>(3type)."
msgstr ""
"Il puntatore I<iov> punta a un array di strutture I<iovec>, definite in "
"I<E<lt>sys/uio.hE<gt>> come:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<readv>()  system call works just like B<read>(2)  except that multiple "
"buffers are filled."
msgstr ""
"La chiamata di sistema B<readv>() funziona esattamente come B<read>(2) "
"tranne per il fatto che i buffer multipli sono riempiti."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<writev>()  system call works just like B<write>(2)  except that "
"multiple buffers are written out."
msgstr ""
"La chiamata di sistema B<writev>() funziona esattamente come B<write>(2) "
"tranne per il fatto che i buffer multipli sono svuotati."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Buffers are processed in array order.  This means that B<readv>()  "
"completely fills I<iov[0]> before proceeding to I<iov[1]>, and so on.  (If "
"there is insufficient data, then not all buffers pointed to by I<iov> may be "
"filled.)  Similarly, B<writev>()  writes out the entire contents of "
"I<iov[0]> before proceeding to I<iov[1]>, and so on."
msgstr ""
"I buffer sono elaborati in ordine di array. Ciò significa che B<readv>() "
"riempie completamente I<iov[0]> prima di procedere a I<iov[1]>, e così via. "
"(Se ci sono dati insufficienti allora non tutti i buffer puntati da I<iov> "
"possono essere riempiti) Similarmente, B<writev>() estrae l'intero contenuto "
"di I<iov[0]> prima di procedere a I<iov[1]>, e così via."

#.  Regarding atomicity, see https://bugzilla.kernel.org/show_bug.cgi?id=10596
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The data transfers performed by B<readv>()  and B<writev>()  are atomic: the "
"data written by B<writev>()  is written as a single block that is not "
"intermingled with output from writes in other processes; analogously, "
"B<readv>()  is guaranteed to read a contiguous block of data from the file, "
"regardless of read operations performed in other threads or processes that "
"have file descriptors referring to the same open file description (see "
"B<open>(2))."
msgstr ""
"I trasferimenti di dati eseguiti da B<readv>() e B<writev>() sono atomici: "
"il dato scritto da B<writev>() è scritto come un blocco singolo che non è "
"mescolato con output provenienti da scritture in altri processi ; "
"analogamente, B<readv>() è garantito che legga un blocco contiguo di dati "
"dal file, indipendentemente dalle operazioni di lettura eseguite in altri "
"thread o processi che hanno descrittori di file che fanno riferimento alla "
"stessa descrizione di file aperto (si veda B<open>(2))."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "preadv() and pwritev()"
msgstr "preadv() e pwritev()"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<preadv>()  system call combines the functionality of B<readv>()  and "
"B<pread>(2).  It performs the same task as B<readv>(), but adds a fourth "
"argument, I<offset>, which specifies the file offset at which the input "
"operation is to be performed."
msgstr ""
"La chiamata di sistema B<preadv>() combina le funzionalità di B<readv>() e "
"di B<pread>(2). Realizza lo stesso compito di B<readv>(), ma aggiunge un "
"quarto argomento, I<offset>, che specifica la posizione nel file (offset) "
"alla quale dev'essere effettuata l'operazione di input."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The B<pwritev>()  system call combines the functionality of B<writev>()  and "
"B<pwrite>(2).  It performs the same task as B<writev>(), but adds a fourth "
"argument, I<offset>, which specifies the file offset at which the output "
"operation is to be performed."
msgstr ""
"La chiamata di sistema B<pwritev>() combina le funzionalità di B<writev>() e "
"di B<pwrite>(2). Realizza lo stesso compito di B<writev>(), ma aggiunge un "
"quarto argomento, I<offset>, che specifica la posizione nel file (offset) "
"alla quale dev'essere effettuata l'operazione di input."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The file offset is not changed by these system calls.  The file referred to "
"by I<fd> must be capable of seeking."
msgstr ""
"L'offset nel file non viene modificato da queste chiamate di sistema. Il "
"file al quale fa riferimento I<fd> deve poter permettere il posizionamento a "
"un offset."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "preadv2() and pwritev2()"
msgstr "preadv2() e pwritev2()"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"These system calls are similar to B<preadv>()  and B<pwritev>()  calls, but "
"add a fifth argument, I<flags>, which modifies the behavior on a per-call "
"basis."
msgstr ""
"Queste chiamate di sistema sono simili alle chiamate B<preadv>() e "
"B<pwritev>(), ma aggiungono un quinto argomento, I<flags>, che modifica il "
"comportamento a seconda del tipo di chiamata."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Unlike B<preadv>()  and B<pwritev>(), if the I<offset> argument is -1, then "
"the current file offset is used and updated."
msgstr ""
"A differenza di B<preadv>() e B<pwritev>(), se l'argomento I<offset> è -1, "
"viene usato e aggiornato l'offset del file corrente."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The I<flags> argument contains a bitwise OR of zero or more of the following "
"flags:"
msgstr ""
"L'argomento I<flags> contiene un OR binario di zero o più dei seguenti flag:"

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RWF_DSYNC> (since Linux 4.7)"
msgstr "B<RWF_DSYNC> (da Linux 4.7)"

#.  commit e864f39569f4092c2b2bc72c773b6e486c7e3bd9
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Provide a per-write equivalent of the B<O_DSYNC> B<open>(2)  flag.  This "
"flag is meaningful only for B<pwritev2>(), and its effect applies only to "
"the data range written by the system call."
msgstr ""
"Equivale a richiedere a livello di una singola scrittura la funzione "
"richiesta dal flag B<O_DSYNC> di B<open>(2). Questo flag è significativo "
"solo per B<pwritev2>(), e il suo risultato si applica solo all'intervallo di "
"dati scritto dalla chiamata di sistema."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RWF_HIPRI> (since Linux 4.6)"
msgstr "B<RWF_HIPRI> (da Linux 4.6)"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"High priority read/write.  Allows block-based filesystems to use polling of "
"the device, which provides lower latency, but may use additional resources.  "
"(Currently, this feature is usable only on a file descriptor opened using "
"the B<O_DIRECT> flag.)"
msgstr ""
"Lettura/scrittura ad alta priorità. Permette ai filesystem basati su blocchi "
"di usare la funzione di polling (interrogazione periodica) del dispositivo, "
"il che permette di abbreviare il periodo di latenza, ma può implicare il "
"consumo di ulteriori risorse. (Attualmente, questa funzionalità è usabile "
"solo su un descrittore di fileaperto usando il flag B<O_DIRECT>.)"

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RWF_SYNC> (since Linux 4.7)"
msgstr "B<RWF_SYNC> (da Linux 4.7)"

#.  commit e864f39569f4092c2b2bc72c773b6e486c7e3bd9
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Provide a per-write equivalent of the B<O_SYNC> B<open>(2)  flag.  This flag "
"is meaningful only for B<pwritev2>(), and its effect applies only to the "
"data range written by the system call."
msgstr ""
"Costituisce un equivalente per ogni singola scrittura (per-write) del flag "
"B<O_SYNC> di B<open>(2). Questo flag è significativo solo per B<pwritev2>(), "
"e il suo risultato si applica solo all'intervallo di dati scritto dalla "
"chiamata di sistema."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RWF_NOWAIT> (since Linux 4.14)"
msgstr "B<RWF_NOWAIT> (da Linux 4.14)"

#.  commit 3239d834847627b6634a4139cf1dc58f6f137a46
#.  commit 91f9943e1c7b6638f27312d03fe71fcc67b23571
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Do not wait for data which is not immediately available.  If this flag is "
"specified, the B<preadv2>()  system call will return instantly if it would "
"have to read data from the backing storage or wait for a lock.  If some data "
"was successfully read, it will return the number of bytes read.  If no bytes "
"were read, it will return -1 and set I<errno> to B<EAGAIN> (but see "
"B<BUGS>).  Currently, this flag is meaningful only for B<preadv2>()."
msgstr ""
"Non attende i dati che non sono immediatamente disponibili. Se è stato "
"specificato questo flag, la chiamata di sistema B<preadv2>() torna al "
"chiamante senza fare nulla se i dati da leggere devono essere rintracciati "
"da disco o se occorre attendere per un lock Se qualche dato è stato letto "
"con successo, restituisce il numero di byte letti. Se non è stato letto "
"nessun byte, restituisce -1 e imposta I<errno> a B<EAGAIN> (però si veda "
"B<BUGS>). Attualmente, questo flag è significativo solo per B<preadv2>()."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<RWF_APPEND> (since Linux 4.16)"
msgstr "B<RWF_APPEND> (da Linux 4.16)"

#.  commit e1fc742e14e01d84d9693c4aca4ab23da65811fb
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Provide a per-write equivalent of the B<O_APPEND> B<open>(2)  flag.  This "
"flag is meaningful only for B<pwritev2>(), and its effect applies only to "
"the data range written by the system call.  The I<offset> argument does not "
"affect the write operation; the data is always appended to the end of the "
"file.  However, if the I<offset> argument is -1, the current file offset is "
"updated."
msgstr ""
"Costituisce un equivalente per ogni singola scrittura (per-write) del flag "
"B<O_APPEND> B<open>(2) flag. Questo flag è significativo solo per "
"B<pwritev2>(), e il suo risultato si applica solo all'intervallo di dati "
"scritto dalla chiamata di sistema. L'argomento I<offset> non influisce "
"sull'operazione di scrittura; i dati sono sempre accodati alla fine del "
"file. Comunque, se l'argomento I<offset> è -1, si usa e si aggiorna il file "
"all'offset corrente."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "RETURN VALUE"
msgstr "VALORE RESTITUITO"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"On success, B<readv>(), B<preadv>(), and B<preadv2>()  return the number of "
"bytes read; B<writev>(), B<pwritev>(), and B<pwritev2>()  return the number "
"of bytes written."
msgstr ""
"In caso di successo, B<readv>(), B<preadv>() e B<preadv2>() restituiscono il "
"numero di byte letti; B<writev>(), B<pwritev>() e B<pwritev2>() "
"restituiscono il numero di byte scritti."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"Note that it is not an error for a successful call to transfer fewer bytes "
"than requested (see B<read>(2)  and B<write>(2))."
msgstr ""
"Si noti che non è un errore per una chiamata andata a buon fine trasferire "
"meno byte di quelli richiesti (si veda B<read>(2) e B<write>(2))."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "On error, -1 is returned, and I<errno> is set to indicate the error."
msgstr ""
"In caso di errore viene restituito -1 , e I<errno> è impostato per indicare "
"l'errore."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "ERRORS"
msgstr "ERRORI"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The errors are as given for B<read>(2)  and B<write>(2).  Furthermore, "
"B<preadv>(), B<preadv2>(), B<pwritev>(), and B<pwritev2>()  can also fail "
"for the same reasons as B<lseek>(2).  Additionally, the following errors are "
"defined:"
msgstr ""
"Gli errori sono gli stessi di B<read>(2) e B<write>(2). Per di più, "
"B<preadv>(), B<preadv2>(), B<pwritev>(), e B<pwritev2>() possono anche non "
"andare a buon fine per le stesse ragioni di B<lseek>(2). Inoltre sono "
"definiti i seguenti errori:"

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<EINVAL>"
msgstr "B<EINVAL>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "The sum of the I<iov_len> values overflows an I<ssize_t> value."
msgstr "La somma dei valori I<iov_len> supera un valore I<ssize_t>."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The vector count, I<iovcnt>, is less than zero or greater than the permitted "
"maximum."
msgstr ""
"Il vettore conteggio, I<iovcnt>, è minore di zero o maggiore del massimo "
"permesso."

#. type: TP
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<EOPNOTSUPP>"
msgstr "B<EOPNOTSUPP>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "An unknown flag is specified in I<flags>."
msgstr "Un flag sconosciuto è specificato in I<flags>."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "VERSIONS"
msgstr "VERSIONI"

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "C library/kernel differences"
msgstr "Differenze tra la libreria C e il kernel"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"The raw B<preadv>()  and B<pwritev>()  system calls have call signatures "
"that differ slightly from that of the corresponding GNU C library wrapper "
"functions shown in the SYNOPSIS.  The final argument, I<offset>, is unpacked "
"by the wrapper functions into two arguments in the system calls:"
msgstr ""
"Le chiamate di sistema dirette B<preadv>() e B<pwritev>() hanno firme che "
"differiscono leggermente da quelle delle corrispondenti funzioni wrapper "
"della libreria GNU C viste nella SINTASSI. L'argomento finale, I<offset>, è "
"spacchettato dalle funzioni wrapper in due argomenti nelle chiamate di "
"sistema:"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B< unsigned long >I<pos_l>B<, unsigned long >I<pos>"
msgstr "B< unsigned long >I<pos_l>B<, unsigned long >I<pos>"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"These arguments contain, respectively, the low order and high order 32 bits "
"of I<offset>."
msgstr ""
"Questi argomenti contengono, rispettivamente, i 32 bit meno significativi e "
"i 32 bit più significativi di I<offset>."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "STANDARDS"
msgstr "CONFORME A"

#. type: TP
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<readv>()"
msgstr "B<readv>()"

#. type: TQ
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<writev>()"
msgstr "B<writev>()"

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
msgid "POSIX.1-2008."
msgstr "POSIX.1-2008."

#. type: TP
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<preadv>()"
msgstr "B<preadv>()"

#. type: TQ
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<pwritev>()"
msgstr "B<pwritev>()"

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
msgid "BSD."
msgstr "BSD."

#. type: TP
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<preadv2>()"
msgstr "B<preadv2>()"

#. type: TQ
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "B<pwritev2>()"
msgstr "B<pwritev2>()"

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
msgid "Linux."
msgstr "Linux."

#. type: SH
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "HISTORY"
msgstr "STORIA"

#.  Linux libc5 used \fIsize_t\fP as the type of the \fIiovcnt\fP argument,
#.  and \fIint\fP as the return type.
#.  The readv/writev system calls were buggy before Linux 1.3.40.
#.  (Says release.libc.)
#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid ""
#| "B<readv>(), B<writev>(): POSIX.1-2001, POSIX.1-2008, 4.4BSD (these system "
#| "calls first appeared in 4.2BSD)."
msgid "POSIX.1-2001, 4.4BSD (first appeared in 4.2BSD)."
msgstr ""
"B<readv>(), B<writev>(): POSIX.1-2001, POSIX.1-2008, 4.4BSD (queste chiamate "
"di sistema sono apparse per la prima volta in 4.2BSD)."

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid "B<preadv>(), B<pwritev>():"
msgid "B<preadv>(), B<pwritev>(): Linux 2.6.30, glibc 2.10."
msgstr "B<preadv>(), B<pwritev>():"

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid "B<preadv2>(), B<pwritev2>(): nonstandard Linux extension."
msgid "B<preadv2>(), B<pwritev2>(): Linux 4.6, glibc 2.26."
msgstr "B<preadv2>(), B<pwritev2>(): Estensione Linux non standard."

#. type: SS
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "Historical C library/kernel differences"
msgstr "Precedenti differenze tra la libreria C e il kernel"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"To deal with the fact that B<IOV_MAX> was so low on early versions of Linux, "
"the glibc wrapper functions for B<readv>()  and B<writev>()  did some extra "
"work if they detected that the underlying kernel system call failed because "
"this limit was exceeded.  In the case of B<readv>(), the wrapper function "
"allocated a temporary buffer large enough for all of the items specified by "
"I<iov>, passed that buffer in a call to B<read>(2), copied data from the "
"buffer to the locations specified by the I<iov_base> fields of the elements "
"of I<iov>, and then freed the buffer.  The wrapper function for B<writev>()  "
"performed the analogous task using a temporary buffer and a call to "
"B<write>(2)."
msgstr ""
"Per affrontare il fatto che B<IOV_MAX> era così basso nelle prime versioni "
"di Linux, le funzioni wrapper di glibc per B<readv>() e B<writev>() facevano "
"un lavoro aggiuntivo se rilevavano che la sottostante chiamata di sistema al "
"kernel falliva perché era stato superato questo limite. Nel caso di "
"B<readv>() la funzione wrapper allocava un buffer temporaneo abbastanza "
"grande per tutti gli elementi specificati da I<iov>, passava questo buffer "
"in una chiamata a B<read>(2), copiava i dati dal buffer alle posizioni "
"specificate dai campi I<iov_base> degli elementi di I<iov>, e infine "
"liberava il buffer. La funzione wrapper per B<writev>() eseguiva l'attività "
"analoga usando un buffer temporaneo e una chiamata a B<write>(2)."

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
#| msgid ""
#| "The need for this extra effort in the glibc wrapper functions went away "
#| "with Linux 2.2 and later.  However, glibc continued to provide this "
#| "behavior until version 2.10.  Starting with glibc version 2.9, the "
#| "wrapper functions provide this behavior only if the library detects that "
#| "the system is running a Linux kernel older than version 2.6.18 (an "
#| "arbitrarily selected kernel version).  And since glibc 2.20 (which "
#| "requires a minimum Linux kernel version of 2.6.32), the glibc wrapper "
#| "functions always just directly invoke the system calls."
msgid ""
"The need for this extra effort in the glibc wrapper functions went away with "
"Linux 2.2 and later.  However, glibc continued to provide this behavior "
"until glibc 2.10.  Starting with glibc 2.9, the wrapper functions provide "
"this behavior only if the library detects that the system is running a Linux "
"kernel older than Linux 2.6.18 (an arbitrarily selected kernel version).  "
"And since glibc 2.20 (which requires a minimum of Linux 2.6.32), the glibc "
"wrapper functions always just directly invoke the system calls."
msgstr ""
"La necessità di questo sforzo aggiuntivo nelle funzioni wrappr glibc si "
"rilevò con le versioni di Linux 2.2 e superiori. Comunque, glibc continuò "
"con questo comportamento fino alla versione 2.10. A partire da glibc "
"versione 2.9, le funzioni wrapper prevedono questo comportamento solo se la "
"libreria rileva che il sistema sta eseguendo un kernel Linux più vecchio "
"della versione 2.6.18 (unna versione del kernel scelta arbitrariamente). E "
"da glibc 2.20 (che richiede una versione del kernel Linux superiore alla "
"2.6.32), le funzioni wrapper di glibc invocano sempre le chiamate di sistema "
"direttamente."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "NOTES"
msgstr "NOTE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid ""
"POSIX.1 allows an implementation to place a limit on the number of items "
"that can be passed in I<iov>.  An implementation can advertise its limit by "
"defining B<IOV_MAX> in I<E<lt>limits.hE<gt>> or at run time via the return "
"value from I<sysconf(_SC_IOV_MAX)>.  On modern Linux systems, the limit is "
"1024.  Back in Linux 2.0 days, this limit was 16."
msgstr ""
"POSIX.1 permette un'implementazione per porre un limite al numero di "
"elementi che possono essere passati in I<iov>. Un'implementazione può "
"pubblicizzare i suoi limiti definendo B<IOV_MAX> in I<E<lt>limits.hE<gt>> o "
"in run time attraverso il valore restituito da I<sysconf(_SC_IOV_MAX)>. Sui "
"sistemi Linux moderni, il limite è 1024, prima di Linux 2.0 questo limite "
"era 16."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "BUGS"
msgstr "BUG"

# Ricontrollare
#.  See
#.  <https://lore.kernel.org/linux-fsdevel/fea8b16d-5a69-40f9-b123-e84dcd6e8f2e@www.fastmail.com/T/#u>
#.  The bug was introduced in
#.     efa8480a831 fs: RWF_NOWAIT should imply IOCB_NOIO
#. and fixed in
#.     06c0444290 mm/filemap.c: generic_file_buffered_read() now uses find_get_pages_contig
#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, fuzzy
msgid ""
"Linux 5.9 and Linux 5.10 have a bug where B<preadv2>()  with the "
"B<RWF_NOWAIT> flag may return 0 even when not at end of file."
msgstr ""
"Linux 5.9 and 5.10 hanno un bug dove B<preadv2()> col flag B<RWF_NOWAIT> può "
"restituire 0 anche se non è alla fine del file."

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "EXAMPLES"
msgstr "ESEMPI"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "The following code sample demonstrates the use of B<writev>():"
msgstr "Il seguente codice di esempio mostra l'uso di B<writev>():"

#. type: Plain text
#: archlinux debian-unstable fedora-40 fedora-rawhide mageia-cauldron
#: opensuse-tumbleweed
#, no-wrap
msgid ""
"char          *str0 = \"hello \";\n"
"char          *str1 = \"world\\en\";\n"
"ssize_t       nwritten;\n"
"struct iovec  iov[2];\n"
"\\&\n"
"iov[0].iov_base = str0;\n"
"iov[0].iov_len = strlen(str0);\n"
"iov[1].iov_base = str1;\n"
"iov[1].iov_len = strlen(str1);\n"
"\\&\n"
"nwritten = writev(STDOUT_FILENO, iov, 2);\n"
msgstr ""
"char          *str0 = \"hello \";\n"
"char          *str1 = \"world\\en\";\n"
"ssize_t       nwritten;\n"
"struct iovec  iov[2];\n"
"\\&\n"
"iov[0].iov_base = str0;\n"
"iov[0].iov_len = strlen(str0);\n"
"iov[1].iov_base = str1;\n"
"iov[1].iov_len = strlen(str1);\n"
"\\&\n"
"nwritten = writev(STDOUT_FILENO, iov, 2);\n"

#. type: SH
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
#, no-wrap
msgid "SEE ALSO"
msgstr "VEDERE ANCHE"

#. type: Plain text
#: archlinux debian-bookworm debian-unstable fedora-40 fedora-rawhide
#: mageia-cauldron opensuse-leap-15-6 opensuse-tumbleweed
msgid "B<pread>(2), B<read>(2), B<write>(2)"
msgstr "B<pread>(2), B<read>(2), B<write>(2)"

#. type: TH
#: debian-bookworm
#, no-wrap
msgid "2023-02-05"
msgstr "5 febbraio 2023"

#. type: TH
#: debian-bookworm
#, no-wrap
msgid "Linux man-pages 6.03"
msgstr "Linux man-pages 6.03"

#. type: Plain text
#: debian-bookworm
msgid ""
"B<preadv>()  and B<pwritev>()  first appeared in Linux 2.6.30; library "
"support was added in glibc 2.10."
msgstr ""
"B<preadv>() e B<pwritev>() sono apparse per la prima volta in Linux 2.6.30; "
"il supporto alla libreria è stato aggiunto in glibc 2.10."

#. type: Plain text
#: debian-bookworm
msgid ""
"B<preadv2>()  and B<pwritev2>()  first appeared in Linux 4.6.  Library "
"support was added in glibc 2.26."
msgstr ""
"B<preadv2>() e B<pwritev2>() sono apparse per la prima volta in Linux 4.6. "
"Il supporto alla libreria è stato aggiunto in  glibc 2.26."

#.  Linux libc5 used \fIsize_t\fP as the type of the \fIiovcnt\fP argument,
#.  and \fIint\fP as the return type.
#.  The readv/writev system calls were buggy before Linux 1.3.40.
#.  (Says release.libc.)
#. type: Plain text
#: debian-bookworm
msgid ""
"B<readv>(), B<writev>(): POSIX.1-2001, POSIX.1-2008, 4.4BSD (these system "
"calls first appeared in 4.2BSD)."
msgstr ""
"B<readv>(), B<writev>(): POSIX.1-2001, POSIX.1-2008, 4.4BSD (queste chiamate "
"di sistema sono apparse per la prima volta in 4.2BSD)."

#. type: Plain text
#: debian-bookworm
msgid ""
"B<preadv>(), B<pwritev>(): nonstandard, but present also on the modern BSDs."
msgstr ""
"B<preadv>(), B<pwritev>(): non standard, però presente anche nei sistemi BSD "
"moderni."

#. type: Plain text
#: debian-bookworm
msgid "B<preadv2>(), B<pwritev2>(): nonstandard Linux extension."
msgstr "B<preadv2>(), B<pwritev2>(): Estensione Linux non standard."

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"char          *str0 = \"hello \";\n"
"char          *str1 = \"world\\en\";\n"
"ssize_t       nwritten;\n"
"struct iovec  iov[2];\n"
msgstr ""
"char          *str0 = \"hello \";\n"
"char          *str1 = \"world\\en\";\n"
"ssize_t       nwritten;\n"
"struct iovec  iov[2];\n"

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid ""
"iov[0].iov_base = str0;\n"
"iov[0].iov_len = strlen(str0);\n"
"iov[1].iov_base = str1;\n"
"iov[1].iov_len = strlen(str1);\n"
msgstr ""
"iov[0].iov_base = str0;\n"
"iov[0].iov_len = strlen(str0);\n"
"iov[1].iov_base = str1;\n"
"iov[1].iov_len = strlen(str1);\n"

#. type: Plain text
#: debian-bookworm opensuse-leap-15-6
#, no-wrap
msgid "nwritten = writev(STDOUT_FILENO, iov, 2);\n"
msgstr "nwritten = writev(STDOUT_FILENO, iov, 2);\n"

#. type: TH
#: fedora-40 fedora-rawhide mageia-cauldron
#, no-wrap
msgid "2023-10-31"
msgstr "31 ottobre 2023"

#. type: TH
#: fedora-40 mageia-cauldron
#, no-wrap
msgid "Linux man-pages 6.06"
msgstr "Linux man-pages 6.06"

#. type: TH
#: fedora-rawhide
#, no-wrap
msgid "Linux man-pages 6.7"
msgstr "Linux man-pages 6.7"

#. type: TH
#: opensuse-leap-15-6
#, no-wrap
msgid "2023-03-30"
msgstr "30 marzo 2023"

#. type: TH
#: opensuse-leap-15-6
#, no-wrap
msgid "Linux man-pages 6.04"
msgstr "Linux man-pages 6.04"

#. type: TH
#: opensuse-tumbleweed
#, fuzzy, no-wrap
#| msgid "Linux man-pages 6.7"
msgid "Linux man-pages (unreleased)"
msgstr "Linux man-pages 6.7"