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<!-- Copyright (C) 2003 Red Hat, Inc.                                -->
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NAME="POSIX-CLOCKS-AND-TIMERS">Clocks and Timers &#0091;POSIX Section 14&#0093;</H1
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN13230">Functions Implemented</H2
><TABLE
BORDER="5"
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WIDTH="70%"
><TR
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><PRE
CLASS="SCREEN"
>int clock&#0095;settime( clockid&#0095;t clock&#0095;id,
const struct timespec &#0042;tp);
int clock&#0095;gettime( clockid&#0095;t clock&#0095;id, struct timespec &#0042;tp);
int clock&#0095;getres( clockid&#0095;t clock&#0095;id, struct timespec &#0042;tp);
int timer&#0095;create( clockid&#0095;t clock&#0095;id, struct sigevent &#0042;evp,
                  timer&#0095;t &#0042;timer&#0095;id);
int timer&#0095;delete( timer&#0095;t timer&#0095;id );
int timer&#0095;settime( timer&#0095;t timerid, int flags,
                   const struct itimerspec &#0042;value,
                   struct itimerspec &#0042;ovalue );
int timer&#0095;gettime( timer&#0095;t timerid, struct itimerspec &#0042;value );
int timer&#0095;getoverrun( timer&#0095;t timerid );
int nanosleep( const struct timespec &#0042;rqtp, struct timespec &#0042;rmtp);</PRE
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NAME="AEN13236">Notes</H2
><P
></P
><UL
><LI
><P
>    Currently <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>timer&#0095;getoverrun()</I
></SPAN
> only
    reports timer notifications that are delayed in the timer
    subsystem.  If they are delayed in the signal subsystem, due to
    signal masks for example, this is not counted as an overrun.
    </P
></LI
><LI
><P
>    The option CYGPKG&#0095;POSIX&#0095;TIMERS allows the timer support to be
    enabled or disabled, and causes &#0095;POSIX&#0095;TIMERS to be defined
    appropriately. This will cause other parts of the POSIX system to
    have limited functionality.
    </P
></LI
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1	28	unneback	`<!-- Copyright (C) 2003 Red Hat, Inc. -->`
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3			`<!-- and conditions set forth in the Open Publication License, v1.0 -->`
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9			`<HTML`
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11			`><TITLE`
12			`>Clocks and Timers [POSIX Section 14]</TITLE`
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15			`NAME="GENERATOR"`
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21			`REL="UP"`
22			`TITLE="POSIX Standard Support"`
23			`HREF="posix-standard-support.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="Execution Scheduling [POSIX Section 13]"`
26			`HREF="posix-execution-scheduling.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="Message Passing [POSIX Section 15]"`
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47			`COLSPAN="3"`
48			`ALIGN="center"`
49			`>eCos Reference Manual</TH`
50			`></TR`
51			`><TR`
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53			`WIDTH="10%"`
54			`ALIGN="left"`
55			`VALIGN="bottom"`
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60			`></TD`
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64			`VALIGN="bottom"`
65			`>Chapter 31. POSIX Standard Support</TD`
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81			`CLASS="SECT1"`
82			`><H1`
83			`CLASS="SECT1"`
84			`><A`
85			`NAME="POSIX-CLOCKS-AND-TIMERS">Clocks and Timers [POSIX Section 14]</H1`
86			`><DIV`
87			`CLASS="SECT2"`
88			`><H2`
89			`CLASS="SECT2"`
90			`><A`
91			`NAME="AEN13230">Functions Implemented</H2`
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93			`BORDER="5"`
94			`BGCOLOR="#E0E0F0"`
95			`WIDTH="70%"`
96			`><TR`
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98			`><PRE`
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100			`>int clock_settime( clockid_t clock_id,`
101			`const struct timespec *tp);`
102			`int clock_gettime( clockid_t clock_id, struct timespec *tp);`
103			`int clock_getres( clockid_t clock_id, struct timespec *tp);`
104			`int timer_create( clockid_t clock_id, struct sigevent *evp,`
105			`timer_t *timer_id);`
106			`int timer_delete( timer_t timer_id );`
107			`int timer_settime( timer_t timerid, int flags,`
108			`const struct itimerspec *value,`
109			`struct itimerspec *ovalue );`
110			`int timer_gettime( timer_t timerid, struct itimerspec *value );`
111			`int timer_getoverrun( timer_t timerid );`
112			`int nanosleep( const struct timespec rqtp, struct timespec rmtp);</PRE`
113			`></TD`
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126			`><DIV`
127			`CLASS="SECT2"`
128			`><H2`
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132			`><P`
133			`></P`
134			`><UL`
135			`><LI`
136			`><P`
137			`> Currently <SPAN`
138			`CLASS="emphasis"`
139			`><I`
140			`CLASS="EMPHASIS"`
141			`>timer_getoverrun()</I`
142			`></SPAN`
143			`> only`
144			`reports timer notifications that are delayed in the timer`
145			`subsystem. If they are delayed in the signal subsystem, due to`
146			`signal masks for example, this is not counted as an overrun.`
147			`</P`
148			`></LI`
149			`><LI`
150			`><P`
151			`> The option CYGPKG_POSIX_TIMERS allows the timer support to be`
152			`enabled or disabled, and causes _POSIX_TIMERS to be defined`
153			`appropriately. This will cause other parts of the POSIX system to`
154			`have limited functionality.`
155			`</P`
156			`></LI`
157			`></UL`
158			`></DIV`
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