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POSwitch from Sockets to cocoaasyncsockets (question related to string conversion)
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  1. POSwitch from Sockets to cocoaasyncsockets (question related to string conversion)
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    copied!<p>This question is related to a iOS project written in ObjectiveC that makes use of some C++-Headers.</p> <p>I'm using this method to send messages to a server using TCP. As you can see, there is a c++ method called that modifies the string to conform to a specific protocol. This string is written to a stream. </p> <pre><code>-(void) writeToServer:(NSString*) str { int len = [str length]; const char* in_ = new char[len]; char* out_ = new char[len]; in_ = [str UTF8String]; len = binary8BitStringTo7BitStringEncoding::encode(in_, len, out_); uint8_t* test = new uint8_t[len]; for (int i=0; i&lt;len; ++i) { test[i] = out_[i]; } [outputStream write:test maxLength:len]; } </code></pre> <p>I'm planning to use the cocoaasyncsocket-framework (http://code.google.com/p/cocoaasyncsocket/) instead of dealing with streams directly. Question is: How to achive the same functionality when using this framework?</p> <p>This is what writing to a server using this framework looks like:</p> <pre><code>NSString *warningMsg = @"Are you still there?\r\n"; NSData *warningData = [warningMsg dataUsingEncoding:NSUTF8StringEncoding]; [sock writeData:warningData withTimeout:-1 tag:WARNING_MSG]; </code></pre> <p>These are the definitions of the two methods used for encoding and decoding</p> <pre><code>unsigned int decode(const char* string, unsigned int len, char* out); unsigned int encode(const char* string, unsigned int len, char* out); </code></pre> <p>In fact i'm looking for a way to send the char* (result of the encode method) to the server but i'm unsure about the whole"NSString* to char* to uint8_t* to NSString* conversion.</p> <p>What is the best way to deal with this kind of conversion to achieve the same result using this framework?</p> <p>Thanks in advance for your answers and time spent!</p>
 

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