In a Cocoa app targeting Leopard, I am getting a malloc error when using the
NSData method
- (void)getBytes:(void *)buffer
My function is as follows:
-(void)getDataSz:(void*)data ofSize:(NSUInteger)sz
{
NSData *theData = [input readDataOfLength:sz];
[theData getBytes:data]; // <-- no error when commented out
}
This function is actually in a subtask and
input
is an NSFileHandle.
Input is reading data (from the main task) correctly with no error.
However,
[theData getBytes:data];
generates the following error (most of the time):
malloc: *** free() called with 0x9aadca0 with refcount 0
malloc: *** auto malloc[3230]: agc error for object 0x9aadca0: Deallocating
a non-block
In normal operation, getDataSz takes in a buffer allocated by an STL vector
in the following call:
[mySubtaskServer getDataSz:&my_vec[0] ofSize:dataSize];
If (just for testing), I replace the argument, data, with a local malloc
buffer (in getDataSz) and free it before exiting, then I do not see this
error.
FWIW, I also do not see this error in an earlier call in which the amount of
data read is less than a block (4096 bytes).
The Build options have
Call C++ Default Ctors/Dtors in Objective-C
set to YES
and garbage-collection is Supported.
Compiler is gcc 4.2.
Is there something else I should be doing here?
Thanks.
--
Mike McLaughlin
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