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# Ice for Objective-C
[Getting started] | [Examples] | [Documentation] | [Building from source]
The [Ice framework] provides everything you need to build networked applications, including RPC, pub/sub, server deployment, and more.
Ice for Objective-C is the Objective-C implementation of the Ice framework.
## Sample Code
```slice
// Slice definitions (Hello.ice)
module Demo
{
interface Hello
{
void sayHello();
}
}
```
```objective-c
// Client application (Client.m)
#import <objc/Ice.h>
#import <Hello.h>
int
main(int argc, char* argv[])
{
int status = 0;
@autoreleasepool
{
id<ICECommunicator> communicator = nil;
@try
{
communicator = [ICEUtil createCommunicator:&argc argv:argv];
if(argc > 1)
{
NSLog(@"%s: too many arguments", argv[0]);
return 1;
}
id<DemoHelloPrx> hello = [DemoHelloPrx uncheckedCast:
[communicator stringToProxy:@"hello:default -p 10000"]];
[hello sayHello];
}
@catch(ICELocalException* ex)
{
NSLog(@"%@", ex);
status = 1;
}
[communicator destroy];
}
return status;
}
```
```objective-c
// Server application (Server.m)
#import <objc/Ice.h>
#import <HelloI.h>
int
main(int argc, char* argv[])
{
int status = 0;
@autoreleasepool
{
id<ICECommunicator> communicator = nil;
@try
{
communicator = [ICEUtil createCommunicator:&argc argv:argv];
id<ICEObjectAdapter> adapter = [communicator
createObjectAdapterWithEndpoints: @"Hello"
endpoints:@"default -p 10000"];
[adapter add:[HelloI hello] identity:[ICEUtil stringToIdentity:@"hello"]];
[adapter activate];
[communicator waitForShutdown];
}
@catch(ICELocalException* ex)
{
NSLog(@"%@", ex);
status = 1;
}
[communicator destroy];
}
return status;
}
```
```objective-c
// Printer declaration (Printer.h)
#import <Hello.h>
@interface Printer : DemoHello<DemoHello>
@end
```
```objective-c
// Printer implementation (Printer.m)
#import <Printer.h>
#include <stdio.h>
@implementation Printer
-(void) sayHello:(ICECurrent*)current
{
printf("Hello World!\n");
fflush(stdout);
}
@end
```
[Getting started]: https://doc.zeroc.com/ice/3.7/hello-world-application/writing-an-ice-application-with-objective-c
[Examples]: https://github.com/zeroc-ice/ice-demos/tree/3.7/objective-c
[Documentation]: https://doc.zeroc.com/ice/3.7
[Building from source]: https://github.com/zeroc-ice/ice/blob/3.7/objective-c/BUILDING.md
[Ice framework]: https://github.com/zeroc-ice/ice
|
