Re: NSFileHandle and thread safety

On Jul 25, 2016, at 9:37 PM, Daniel Stenmark wrote: 1. Can I write to two different files using two NSFIleHandles from two threads at the same time? Yes. 2. Can I read from a single file using two NSFileHandles on two threads at the same time? Why would you need to do that in the first

Re: NSFileHandle and thread safety

> As long as each thread has a separate file handle, they’re independent of > each other, since each file handle remembers its own offset in the file. Ah, durr, you’re right. Apologies, I once had the displeasure of debugging an ancient codebase that used the same Unix file descriptor with

Re: NSFileHandle and thread safety

> On Jul 25, 2016, at 12:37 PM, Daniel Stenmark wrote: > > 2. Can I read from a single file using two NSFileHandles on two threads at > the same time? > > Why would you need to do that in the first place? To get multithreaded access to the file contents. This is

Re: NSFileHandle and thread safety

> On 26 Jul 2016, at 5:37 AM, Daniel Stenmark wrote: > > 2. Can I read from a single file using two NSFileHandles on two threads at > the same time? > > Why would you need to do that in the first place? Unless you’re reading a > single byte at a time, it sounds like

Re: NSFileHandle and thread safety

1. Can I write to two different files using two NSFIleHandles from two threads at the same time? Yes. 2. Can I read from a single file using two NSFileHandles on two threads at the same time? Why would you need to do that in the first place? Unless you’re reading a single byte at a time, it

NSFileHandle and thread safety

Hello list, I find Apple’s documentation on this unclear. It says: "NSFileHandle, NSData, Cocoa streams: Most of the Foundation objects you use to read and write file data can be used from any single thread but should not be used from multiple threads simultaneously." For example I would