I am new to UNIX hence the question. Most of the time when I have an environment set up for me to develop my systems, I have had my ID logon and I can edit the .profile for my account and it understand commands korn shell. It seems this machine, a new SUN machine, was setup with users getting the... (3 Replies)
Hi
there is something I don't understand with the repeated element. With the following command I have a weird output:
:confused:
while I thought the output would be
I really don't understand why 2 "a" are skipped. Might someone explain please? (5 Replies)
Hi,
I use to work on solaris via putty
and always on session start
- i use to increase the font to 14 bold
- capture session output to a file
my requirement) to make these changes permanent, so that i need not to change the settings everytime i connect via putty
please advice.
... (0 Replies)
I have folders like as below format. I need to apply the 755 mode for '.sh' format only. I am using the below command to apply the changes. But it's affecting first level only. How to apply the changes recursively in .sh file only?
Please suggest the command.
Thanks
chmod 755 -R *.sh
... (8 Replies)
hii all,
I am unable to login into GUI mode in solaris 10. It is only prompting me to command mode credentials not going further to GUI mode.. Please help..
Thanks & regards,
Bhagi (3 Replies)
Whenevr i am trying to access ROOT file in Fedora 15 by double clicking, its showing I dont have enough permission to access it and its not showing the inside access... How to solve it?? (4 Replies)
I have a v490 server running Solaris 10.
Everytime I reboot this machine, the console-login service goes to maintainance mode and I have to provide the root password. All the other dependencies are running fine and nothing there in the logs too. To bring it online, I have to enable it manually.
... (1 Reply)
Solaris 10
trying to patch and therefore want to do this from single user mode
I do a init 0
get's me to ok> :)
ok> boot -s
I was a UK Sun Field Engineer for 10 years ..... I've used "boot -s " quite a bit .....
I get a console login , which I subsequently login into
#who... (13 Replies)
Hi Guys
After installing my CentOS in virtual machine i am not able to get the graphical mode. By default it is going in TUI mode.
Please help how to get the graphical mode by default.
I am already in init 5.....
Thanks...:wall: (1 Reply)
Hi Guys
Required help in Redhat 6.1.
After installation of Redhat 6.1 in VMware system is not going in GUI mode.
please to solve the issue...
Thanks... (5 Replies)
Discussion started by: deviltech
5 Replies
LEARN ABOUT MOJAVE
dispatch_walltime
dispatch_time(3) BSD Library Functions Manual dispatch_time(3)NAME
dispatch_time, dispatch_walltime -- Calculate temporal milestones
SYNOPSIS
#include <dispatch/dispatch.h>
static const dispatch_time_t DISPATCH_TIME_NOW = 0ull;
static const dispatch_time_t DISPATCH_TIME_FOREVER = ~0ull;
dispatch_time_t
dispatch_time(dispatch_time_t base, int64_t offset);
dispatch_time_t
dispatch_walltime(struct timespec *base, int64_t offset);
DESCRIPTION
The dispatch_time() and dispatch_walltime() functions provide a simple mechanism for expressing temporal milestones for use with dispatch
functions that need timeouts or operate on a schedule.
The dispatch_time_t type is a semi-opaque integer, with only the special values DISPATCH_TIME_NOW and DISPATCH_TIME_FOREVER being externally
defined. All other values are represented using an internal format that is not safe for integer arithmetic or comparison. The internal for-
mat is subject to change.
The dispatch_time() function returns a milestone relative to an existing milestone after adding offset nanoseconds. If the base parameter
maps internally to a wall clock, then the returned value is relative to the wall clock. Otherwise, if base is DISPATCH_TIME_NOW, then the
current time of the default host clock is used.
The dispatch_walltime() function is useful for creating a milestone relative to a fixed point in time using the wall clock, as specified by
the optional base parameter. If base is NULL, then the current time of the wall clock is used.
EDGE CONDITIONS
The dispatch_time() and dispatch_walltime() functions detect overflow and underflow conditions when applying the offset parameter.
Overflow causes DISPATCH_TIME_FOREVER to be returned. When base is DISPATCH_TIME_FOREVER, then the offset parameter is ignored.
Underflow causes the smallest representable value to be returned for a given clock.
EXAMPLES
Create a milestone two seconds in the future:
milestone = dispatch_time(DISPATCH_TIME_NOW, 2 * NSEC_PER_SEC);
Create a milestone for use as an infinite timeout:
milestone = DISPATCH_TIME_FOREVER;
Create a milestone on Tuesday, January 19, 2038:
struct timespec ts;
ts.tv_sec = 0x7FFFFFFF;
ts.tv_nsec = 0;
milestone = dispatch_walltime(&ts, 0);
Use a negative delta to create a milestone an hour before the one above:
milestone = dispatch_walltime(&ts, -60 * 60 * NSEC_PER_SEC);
RETURN VALUE
These functions return an abstract value for use with dispatch_after(), dispatch_group_wait(), dispatch_semaphore_wait(), or
dispatch_source_set_timer().
SEE ALSO dispatch(3), dispatch_after(3), dispatch_group_create(3), dispatch_semaphore_create(3)Darwin May 1, 2009 Darwin