ios - NSInputStream and NSOutputStream problems -

ios - NSInputStream and NSOutputStream problems -

i have 2 nsinputstream , nsoutputstream between devices connected each other via network. when write in output stream, info written until nsstreameventendencountered event occurs. close output stream on other side (input stream) nsstreameventendencountered event never occurs, until exit view controller of output stream. so: 1. why not nsstreameventendencountered event occurs @ input stream after the same occurred @ output stream ? (the output stream closed in event) 2. understanding that, 1 time open nsoutputstream, can write info once. opening output stream 1 time again after nsstreameventendencountered event (for illustration write new on event) not possible, right ????

i need more info connection , how you're sending info allow me seek , reply questions:

1.

you're not encountering end of inputstream because never started reading it. outputstream finished writing because encountered end, said.

imagine jacob (your outputstream) delivering envelope (your data) friend's house. jacob puts envelope on friend's doormat , walks own house. at point jacob's work done tells himself he's done (in case outputstream signals nsstreameventendencountered).

jacob's friend george (your inputstream) see envelope or not, nevertheless never looks in it. so unless george takes envelope , looks within it, never tell himself finished looking @ (in case inputstream never signals nsstreameventendencountered).

2.

this depends on how plan utilize outputstream. if plan send info multiple times same device, why not leave outputstream open? can write info long socket open , there space available. when close outputstream need reopen however.

ios nsstream nsinputstream nsoutputstream