大约有 40,000 项符合查询结果(耗时:0.0638秒) [XML]
When to use thread pool in C#? [closed]
... a thread is waiting on a synchronization object (event, semaphore, mutex, etc) then the thread does not consume CPU.
– Brannon
Sep 28 '08 at 7:18
7
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Centering a background image, using CSS
...ks! I didn't even know that there were different declarations for webkit, etc...
– Mike Rapadas
Feb 28 '14 at 9:24
He...
Find difference between timestamps in seconds in PostgreSQL
... including seconds. The OP wants not only seconds but also minutes, hours, etc
– Clodoaldo Neto
Dec 24 '12 at 12:39
6
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How do I terminate a thread in C++11?
...ts to follow the clear models including memory model, multithreading model etc. Method of forceful thread termination is inherently unsafe. If C++ standard committee would be forced to add it to C++, it would be made with next statement "Method terminate() terminates thread execution. Behavior undef...
How do you add Boost libraries in CMakeLists.txt?
...you have multiple build-versions of boost (multi-threaded, static, shared, etc.) you can specify you desired configuration before calling find_package. Do this by setting some of the following variables to On: Boost_USE_STATIC_LIBS, Boost_USE_MULTITHREADED, Boost_USE_STATIC_RUNTIME
When searching fo...
How to get the instance id from within an ec2 instance?
...dvanced use (retrieve instance ID as well as availability zone and region, etc.):
EC2_INSTANCE_ID="`wget -q -O - http://169.254.169.254/latest/meta-data/instance-id || die \"wget instance-id has failed: $?\"`"
test -n "$EC2_INSTANCE_ID" || die 'cannot obtain instance-id'
EC2_AVAIL_ZONE="`wget -q -O...
How can I selectively merge or pick changes from another branch in Git?
...i $to to git rebase -i $to || $SHELL, so that the user can call git --skip etc, as necessary if the rebase fails. Also worth chaining the lines together with && instead of newlines.
– sircolinton
Feb 24 '11 at 18:10
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How to check if a file is a valid image file?
...more about it than just the format, like bitmap dimensions, format version etc.. So you might see this as a superficial test for "validity".
For other definitions of "valid" you might have to write your own tests.
share
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load scripts asynchronously
...much as they can. They can go ahead with parsing, loading and applying CSS etc... They cannot however start running the next script fragment. So stuff will block. By setting async, you are telling the browser that it's ok to go ahead and you will make sure that you make it work yourself.
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Git diff to show only lines that have been modified
...onal git diff options such as -R, --src-prefix, --dst-prefix, --no-prefix, etc.
The two greps can be combined into a single grep -E -v '^(\+\+\+ b/|--- a/|@@ |diff --git|index )', but I find the double grep version easier to understand.
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