SELECT.H(3HEAD) Headers SELECT.H(3HEAD)

NAME

select.h, select - select types

SYNOPSIS

#include <sys/select.h>

DESCRIPTION

The <sys/select.h> header defines the timeval structure, which
includes the following members:

time_t tv_sec /* seconds */
suseconds_t tv_usec /* microseconds */


The time_t and suseconds_t types are defined as described in
<sys/types.h>. See types.h(3HEAD).


The sigset_t type is defined as described in signal.h(3HEAD).


The timespec structure is defined as described in <time.h>. See
time.h(3HEAD).


The <sys/select.h> header defines the fd_set type as a structure.


The following is defined as a macro:

FD_SETSIZE
Maximum number of file descriptors in an fd_set
structure.


Inclusion of the <sys/select.h> header can make visible all symbols
from the headers <signal.h>, <sys/time.h>, and <time.h>.

ATTRIBUTES

See attributes(7) for descriptions of the following attributes:


+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Interface Stability | Standard |
+--------------------+-----------------+

SEE ALSO

select(3C), signal.h(3HEAD), time.h(3HEAD), types.h(3HEAD),
attributes(7), standards(7)

September 10, 2004 SELECT.H(3HEAD)