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Test Your Knowledge in Computers #439
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A graphics processing unit (GPU) is a specialized electronic circuit designed to rapidly manipulate and alter memory to accelerate the creation of images in a frame buffer intended for output to a display device.
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getdiskbyname(3) [bsd man page]

GETDISKBYNAME(3)					     Library Functions Manual						  GETDISKBYNAME(3)

NAME
getdiskbyname - get disk description by its name SYNOPSIS
#include <sys/types.h> #include <sys/disktab.h> struct disklabel * getdiskbyname(name) char *name; DESCRIPTION
Getdiskbyname takes a disk name (e.g. rm03) and returns a structure describing its geometry information and the standard disk partition tables. Information obtained from the disktab(5) file has the following form: SEE ALSO
disktab(5), disklabel(8) BUGS
This routine is primarily used when the underlying disk driver does not support labels. The other use is for supplying default information to the disklabel(8) program. 4.2 Berkeley Distribution September 8, 1995 GETDISKBYNAME(3)

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getdiskbyname(3)					     Library Functions Manual						  getdiskbyname(3)

NAME
getdiskbyname, getdiskbyname_r - Get the disk description using a disk name LIBRARY
Standard C Library (libc) SYNOPSIS
#include <sys/disklabel.h> #include <sys/types.h> struct disklabel *getdiskbyname( char *name); int getdiskbyname_r( char *name, struct disklabel *disk, char *boot, int boot_len); PARAMETERS
Specifies a common name for the disk drive whose geometry and partition characteristics are sought. Points to the structure that will con- tain the returned disk description. Points to the buffer that will contain the optional names of the primary and secondary bootstraps. Specifies the length of boot. This should be BUFSIZ. DESCRIPTION
Operations supported by the getdiskbyname function are also supported by the createlabel function. See The getdiskbyname and getdiskby- name_r functions are supported only for backward compatibility with DIGITAL UNIX Version 4.0 and earlier versions. These functions will be retired in a future release of Tru64 UNIX. The getdiskbyname() function uses a disk (disk drive) name to return a pointer to a structure that describes the geometry and standard par- tition characteristics of the named disk drive. Information obtained from the /etc/disktab database file is written to the type disklabel structure space referenced by the returned pointer. The getdiskbyname_r() function is the reentrant version of getdiskbyname(). Upon successful completion, getdiskbyname_r() returns a value of 0 (zero); the returned structure is pointed at by disk. Upon error, it returns a value of -1, and may set errno to [EINVAL]. RETURN VALUES
Upon successful completion, the getdiskbyname() function, returns a pointer to a type disklabel structure. ERRORS
Either disk or boot is NULL, or boot_len is not equal to BUFSIZ. RELATED INFORMATION
Functions: createlabel(3) Files: disklabel(4), disktab(4) Commands: disklabel(8) delim off getdiskbyname(3)

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