Sleep (system call)

A computer program (process, task, or thread) may sleep, which places it into an inactive state for a period of time. Eventually the expiration of an interval timer, or the receipt of a signal or interrupt causes the program to resume execution.

Usage

A typical sleep system call takes a time value as a parameter, specifying the minimum amount of time that the process is to sleep before resuming execution. The parameter typically specifies seconds, although some operating systems provide finer resolution, such as milliseconds or microseconds.

Windows

On Windows, the Sleep() function takes a single parameter of the number of milliseconds to sleep. The Sleep() function is included in kernel32.dll, but no sleep command (executable) is natively available for scripts (batch files). It can be found in collections of Windows utilities like Windows 2003 Resource Kit.

Unix

On Unix-like operating systems, the sleep() function is called providing a single parameter of type unsigned integer of the number of seconds to sleep. (For more precise sleep times one can use the usleep() function.)

Sleep (OS X)

Sleep on Macintoshes running on OS X consist of the traditional sleep, Safe Sleep, and Power Nap. In System Preferences, Safe Sleep is referred to as sleep. Since Safe Sleep also allowed state to be restored in an event of a power outage, unlike other operating systems, hibernate was never offered as an option.

In 2005, some versions of Macs running Mac OS X v10.4 began to support Safe Sleep. The feature saves the contents of volatile memory to the system hard disk each time the Mac enters Sleep mode. The Mac can instantaneously wake from sleep mode if power to the RAM has not been lost. However, if the power supply was interrupted, such as when removing batteries without an AC power connection, the Mac would wake from Safe Sleep instead, restoring memory contents from the hard drive.

Safe Sleep capability is found in Mac models starting with the October 2005 revision of the PowerBook G4 (Double-Layer SD). Mac OS X v10.4 or higher is also required. A hack enabled the feature as well on older Macs running Mac OS X v10.4.

Azure Ray (album)

Azure Ray is Azure Ray's self-titled debut. It was released January 16, 2001 on WARM.

Track listing

References

Portland (steam tug 1875)

The Portland was a steam tug built in Portland, Oregon, United States. This vessel was also known as Clayoquat and Phoenix.

Career

Portland was launched on April 9, 1875 in Portland, Oregon. The vessel was operated for 15 years on the Columbia and Willamette Rivers, and then was transferred to Puget Sound. From 1891 to 1895, the Portland operated out of Everett, Washington, piloted by Captain James Hastings.

Drift and recovery

In 1897, the Portland was hauled out at Ballard, Washington, for repairs. Somehow she broke free from the shipway and floated off unoccupied. Eventually, the Portland drifted north into Canadian waters, where she was recovered as a derelict by the B.C. Salvage Company. She came under the control of R.P. Rithet and Company, a prominent British Columbia shipping concern that repurposed her to a passenger steamer. She was renamed Clayoquat and ran on passenger routes out of Port Renfrew, on the west coast of Vancouver Island. Clayoquat later passed to the H.Bell-Irving Company, and was used by them as a cannery tender under the name Phoenix.

Portland, Connecticut

Portland is a town in Middlesex County, Connecticut, United States. The population was 8,732 at the 2000 census. The town center is listed as a census-designated place (CDP). It is situated across the Connecticut River from Middletown. Brownstone quarried in Portland was used in the construction of Hartford's Old State House in 1796. The vast majority of the brownstone buildings in Connecticut (see College Row at Wesleyan University and the Long Walk at Trinity College) as well as the famous brownstones in New York City were built with brownstone from Portland's quarries.

About half of the town's perimeter is made up of the Connecticut River. The town has eight marinas and boat clubs as well as three 18-hole golf courses.

History

The Wangunk tribe lived in the area prior to European settlement, and lived in Portland continuously throughout the settler period. Wangunk descendants still live in the area today. Their name referred to the bend in the Connecticut River which curves around half of the town's perimeter.

Portland (album)

Portland is a studio album by Kevin Burke and Mícheál Ó Domhnaill, released in 1982 by Green Linnet Records (SIF 1041). This is the second and final album by this duo who first played together with the popular Irish traditional group The Bothy Band.

Background

Mícheál Ó Domhnaill co-founded the popular Irish traditional group The Bothy Band in 1974, along with Paddy Glackin (fiddle), Matt Molloy (flute and tin whistle), Paddy Keenan (uilleann pipes and tin whistle), Dónal Lunny (bouzouki, guitar, and production), and his sister Tríona Ní Dhomhnaill (harpsichord, clavinet and vocals). Ó Domhnaill met Kevin Burke when Burke replaced Glackin in the Bothy Band in May 1976. In the five years the Bothy Band were together, they emerged as one of the most exciting groups in the history of Irish traditional music. Much of their repertoire was rooted in the traditional music of Ireland, and their enthusiasm and musical virtuosity set a standard for future Irish traditional performers. They recorded three studio albums during their brief career: The Bothy Band (1975), Old Hag You Have Killed Me (1976), and Out of the Wind – Into the Sun (1977). A live album After Hours was released in 1979, the year the group disbanded.

Leto

In Greek mythology, Leto (/ˈliːtoʊ/; Greek: Λητώ Lētṓ; Λατώ, Lātṓ in Dorian Greek, etymology and meaning disputed) is a daughter of the Titans Coeus and Phoebe, the sister of Asteria. and mother of Apollo and Artemis.

The island of Kos is claimed as her birthplace. In the Olympian scheme, Zeus is the father of her twins, Apollo and Artemis, the Letoides, which Leto conceived after her hidden beauty accidentally caught the eyes of Zeus. Classical Greek myths record little about Leto other than her pregnancy and her search for a place where she could give birth to Apollo and Artemis, since Hera in her jealousy had caused all lands to shun her. Finally, she finds an island that is not attached to the ocean floor so it is not considered land and she can give birth. This is her one active mythic role: once Apollo and Artemis are grown, Leto withdraws, to remain a dim and benevolent matronly figure upon Olympus, her part already played. In Roman mythology, Leto's equivalent is Latona, a Latinization of her name, influenced by Etruscan Letun.