The piece of code I want to discuss is followed:
#import <Foundation/Foundation.h>
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
for(int i=0;i<5000;i++)
{
NSURL *inAbsoluteURL = [[[NSURL alloc] initFileURLWithPath:@"the
path to one xml file"] autorelease];
NSError *error = NULL;
NSXMLDocument *xmlDocument = [[NSXMLDocument alloc]
initWithContentsOfURL:(NSURL*)inAbsoluteURL
options:0
error:&error];
//hande my Xpath, and do check work. will not cosume the memory.
[xmlDocument release];
}
[pool drain];
return 0;
}
I used the Instruments to detect the objects created but still live until
the application quit, I also use top command to check the memory usage.
I found a lot of node, element, and other children object still live after
the xmlDocument do release.
I found that the memory usage of this application is increasing rapidly.
Can any one give me a guilde to force the system to dealloc the memory
during the for loop. I need to batch handle a lot of xml files. But after
the application runs for a while,
the system will crash because of no memory.
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