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How ARC works withUnsafeMutablePointer Interface.
I am using withUnsafeMutablePointer to get raw pointer from Data. Once I get a Pointer I follow these steps: I create a Wrapper using that Pointer. After that I increase it ARC and pass it as a opaque to C++ When I was on First Step if my thread get suspended and after some time if it resumes then is there a possibility that the Memory will get freed due to ARC. Adding basic Code Flow depicting what i am doing. public class DataHolder { public init () {} public var data_wrapper : Data? } func InternalReceiveHandler (_ pContent : Data?) -> Void { var holder : DataHolder = DataHolder.init () withUnsafeMutablePointer (to : &pContent) { data_pointer in holder.data_wrapper = Data.init (noBytesCopy : data_pointer, count : no_of_bytes, deallocator : .none) return Unmanaged.passRetained (holder).toOpaque () } } Is there a possibility that when I am creating the wrapper my thread get suspended and when it get resumed the Memory the pointer was pointing can be freed by ARC.
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Aug ’24
Network Name (local domain Name) of a Mac (Mac-OS)
I want to get the network-name (domain-name) on my Mac-Machine. Where iin the Settings does this domain name gets configured. I refer to this page which talks about computer name and host name, I could find where my hostname is present (Settings->General->Sharing->local host name) but not anything related to the network-name (local -domain) . Even try to fetch this info using the linux api to getdomainname, api call succeeded but it returns Nothing. #include <iostream> #include <unistd.h> #include <limits.h> #include <cstring> int main() { char domainname[255]; // Get the domain name if (getdomainname(domainname, 255) != 0) { std::cout << "Error getting domain name" << std::endl; return 1; } std::cout << "Domain name: " << domainname << std::endl; return 0; } Output Domain name: I even came across Search-Domains, Does it have anything to do with the network-name (domain name of the machine)?
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1.4k
Apr ’24
How can we get FQDN (Fully Qualified Domain Name) in IOS and What Api to Use?
I have a use-case were I want to use the the FQDN (Fully Qualified Domain Name) in IOS-Device, which can be used to connect to a Device instead of using the IP-Address. FQDN will be consisting of the machine-name or host-name (Most common term) and the domain-name of the network i.e network-name (local domain assigned to that device). Which IOS Api can be used Here?
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Apr ’24