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Force Screen On
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Does that prevent the device from sleeping? If so, the commonness of WAKE_LOCK strikes me as a shocking mistake!
– Michael Cramer
Jan 25 '10 at 18:52
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How to generate a core dump in Linux on a segmentation fault?
... reloading by sysctl -p.
If the core files are not generated (test it by: sleep 10 & and killall -SIGSEGV sleep), check the limits by: ulimit -a.
If your core file size is limited, run:
ulimit -c unlimited
to make it unlimited.
Then test again, if the core dumping is successful, you will s...
莱昂氏unix源代码分析 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
...程 252
6.5 proc〔0〕的初始化 252
6.6 sched(1940) 253
6.7 sleep(2066) 253
6.8 swtch(2178) 253
6.9 再回到main 254
第7章 进程 256
7.1 进程映像 256
7.2 proc结构(0358) 257
7.3 user结构(0413) 257
7.4 每个进程数据区 258
7.5 段 258
7.6 映像...
How to break out of a loop from inside a switch?
...on #1
Readily insert the pause:
while( isValidState() ) {
execute();
sleep();
}
Option #2
Override execute:
void execute() {
super->execute();
sleep();
}
This code is simpler (thus easier to read) than a loop with an embedded switch. The isValidState method should only determine i...
std::unique_lock or std::lock_guard?
...e lock.
In particular, condition_variable unlocks its mutex when going to sleep upon calls to wait. That is why a lock_guard is not sufficient here.
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What does `kill -0 $pid` in a shell script do?
...Kill the process if it exists and accepts signals from
# the current user.
sleep 60 &
pid=$!
kill -0 $pid && kill $pid
# Check if a PID exists. When missing, this should result
# in output similar to:
# bash: kill: (6228) - No such process
# Exit status: 1
kill -0 $pid; echo "Exit...
Alternatives to gprof [closed]
...lways found profilers not so useful for fixing slow code, and instead used selective bits of debugging code to measure the time taken by a group of statements of my choosing, often aided by some trivial little macros or whatever. It's never taken me too long to find the culprit, but I've always bee...
PHP: Storing 'objects' inside the $_SESSION
...nical advantages gained by being stateless. This is not something to lose sleep over unless you know in advance that you ought to be losing sleep over it.
I am especially flummoxed by the blessing received by the "double whammy" arguments put forth by Hank Gay. Is the OP building a distributed an...
WPF Timer Like C# Timer
...ling)
{
thread::Thread.Sleep(Interval);
Application.Current.Dispatcher.Invoke(AsyncTick);
}
}
else
{
canceled = false;
...
What are the differences between delegates and events?
...custom user control that shows the properties of that person. When someone selects a person in the drop-down the labels in the user control update to show the properties of the person selected.
Here is how that works. We have three files that help us put this together:
Mediator.cs -- static cla...