大约有 3,500 项符合查询结果（耗时：0.0134秒） [XML]
Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
...anipulate a few bytes on the top of the stack. A threat creation means: 1. allocating a stack, 2. performing a syscall, 3. creating data structures in the kernel and linking them up, grapping locks along the way, 4. waiting for the scheduler to execute the thread, 5. switching context to the thread....
What ports does RabbitMQ use?
...d by Erlang distribution for inter-node and CLI tools communication and is allocated from a dynamic range (limited to a single port by default, computed as AMQP port + 20000). See networking guide for details.
15672: HTTP API clients and rabbitmqadmin (only if the management plugin is enabled)
61...
How can I decompress a gzip stream with zlib?
...ess that can vary according to data entropy. Is there a way to dynamically allocate more space to output buffer when needed ? Thanks
– Zohar81
Jan 22 '19 at 12:33
add a commen...
How to return smart pointers (shared_ptr), by reference or by value?
... N strings in the vector, each copy
could require as many as N+1 memory allocations and a whole slew of cache-unfriendly data accesses > as the string contents are copied.
Rather than confront that sort of anxiety, I’ve often fallen back on pass-by-reference to avoid
needless copies:
...
Synchronization vs Lock
...r can there be barging? Method level synchronization ensures fair or FIFO allocation of the lock. Using
synchronized(foo) {
}
or
lock.acquire(); .....lock.release();
does not assure fairness.
If you have lots of contention for the lock you can easily encounter barging where newer requests ...
Why is there no Constant feature in Java?
...calling some method with side effects. final is somewhat similair to stack allocation of C++ in terms of refering to an object rather than a pointer, but that's all it is. This is ofcourse in addition to what dom0 already said.
– Tim
Mar 28 '16 at 18:22
...
PHP memory profiling
..., to see how much memory my data is using, and/or which function calls are allocating the most memory.
4 Answers
...
How does this milw0rm heap spraying exploit work?
...inding feature of Microsoft's XML handler, that causes heap memory to be deallocated incorrectly.
Shellcode is machine code that will run when the bug occurs. Spray and memory are just some space allocated on the heap to help the exploitable condition occur.
...
omp parallel vs. omp parallel for
...using separated parallel and for here. In short it can be used for dynamic allocation of OpenMP thread-private arrays before executing for cycle in several threads.
It is impossible to do the same initializing in parallel for case.
UPD:
In the question example there is no difference between single ...
Posting a File and Associated Data to a RESTful WebService preferably as JSON
... the picture's data.
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"myServerAddress"]];
[request setHTTPMethod:@"POST"];
[request setHTTPBody:UIImageJPEGRepresentation(picture, 0.5)];
[request setValue:@"image/jpeg" forHTTPHeaderField:@"Content-Type"]...