Results for: "pstore"

Returns an entry from the /etc/group file.

The first time it is called it opens the file and returns the first entry; each successive call returns the next entry, or nil if the end of the file has been reached.

To close the file when processing is complete, call ::endgrent.

Each entry is returned as a Group struct

Returns system temporary directory; typically “/tmp”.

Returns system configuration variable using confstr().

name should be a constant under Etc which begins with CS_.

The return value is a string or nil. nil means no configuration-defined value. (confstr() returns 0 but errno is not set.)

Etc.confstr(Etc::CS_PATH) #=> "/bin:/usr/bin"

# GNU/Linux
Etc.confstr(Etc::CS_GNU_LIBC_VERSION) #=> "glibc 2.18"
Etc.confstr(Etc::CS_GNU_LIBPTHREAD_VERSION) #=> "NPTL 2.18"

Returns the number of online processors.

The result is intended as the number of processes to use all available processors.

This method is implemented using:

• sched_getaffinity(): Linux

• sysconf(_SC_NPROCESSORS_ONLN): GNU/Linux, NetBSD, FreeBSD, OpenBSD, DragonFly BSD, OpenIndiana, Mac OS X, AIX

Example:

require 'etc'
p Etc.nprocessors #=> 4

The result might be smaller number than physical cpus especially when ruby process is bound to specific cpus. This is intended for getting better parallel processing.

Example: (Linux)

linux$ taskset 0x3 ./ruby -retc -e "p Etc.nprocessors"  #=> 2

Change the size of the memory allocated at the memory location addr to size bytes. Returns the memory address of the reallocated memory, which may be different than the address passed in.

Free the memory at address addr

Convert str to ISO-2022-JP

Convert str to ISO-2022-JP

Convert str to EUC-JP

Convert str to EUC-JP

Convert str to Shift_JIS

Convert str to Shift_JIS

Convert str to UTF-8

Convert str to UTF-8

Convert str to UTF-16

Convert str to UTF-16

Convert str to UTF-32

Convert str to UTF-32

Convert self to locale encoding

Convert self to locale encoding

Returns a Digest subclass by name

require 'openssl'

OpenSSL::Digest("MD5")
# => OpenSSL::Digest::MD5

Digest("Foo")
# => NameError: wrong constant name Foo

Returns a Digest subclass by name

require 'openssl'

OpenSSL::Digest("MD5")
# => OpenSSL::Digest::MD5

Digest("Foo")
# => NameError: wrong constant name Foo

See any remaining errors held in queue.

Any errors you see here are probably due to a bug in Ruby’s OpenSSL implementation.

Closes and then reopens the syslog.

Arguments are the same as for open().

Returns self, for backward compatibility.