Open System Services System Calls Reference Manual (G06.25+, H06.03+)

spt_usleep(2) OSS System Calls Reference Manual

NAME

spt_usleep - Suspends execution of the thread for a speciﬁed number of microseconds

LIBRARY

G-series native OSS processes: /G/system/sysnn/zsptsrl

H-series OSS processes: /G/system/zdllnnn/zsptdll

SYNOPSIS

#include <spthread.h>

int spt_usleep (

unsigned int useconds );

PARAMETERS

useconds Speciﬁes the number of microseconds for which the thread is to

be suspended. The value speciﬁed must be less than or equal to

1000000.

DESCRIPTION

The spt_usleep() function suspends a thread for a speciﬁed number of microseconds. A certain

amount of delay can be expected in the processing of the spt_usleep() call because of other

processor-intensive or input/output-intensive threads.

RETURN VALUES

The spt_usleep() function returns the value 0 (zero) when the call completes successfully. Oth-

erwise, spt_usleep() returns -1 and sets errno.

ERRORS

If the following condition occurs, spt_usleep() sets errno to the corresponding value:

[EINTR] A pthread_kill() function call received a signal that is not

blocked, ignored, or handled.

[EINVAL] The value speciﬁed for the useconds parameter was greater than

1000000.

RELATED INFORMATION

Functions: spt_sleep(2).

STANDARDS CONFORMANCE

This function is an extension to the UNIX98 speciﬁcation. Interfaces documented on this refer-

ence page conform to the following industry standards:

• IEEE Std 1003.1c-1995, POSIX System Application Program Interface

The use of the header ﬁle spthread.h is an HP exception to the POSIX standard.

7−152 Hewlett-Packard Company 527186-003