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POAnyone use CFAllocatorSetDefault succesfully in an iPhone app?
primarykey
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17135434
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2013-06-16T16:35:31.167
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2013-06-18T06:41:13.743
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2013-06-18T05:39:29.943
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Body
I wish to replace the default <code>CFAllocator</code> in my iPhone app with my own implementation. I want to control the memory allocated by the <code>UIWebView</code> since it seems to hold on to so much memory after loading a website and that memory still lingers around when the <code>UIWebView</code> is released. After I call <code>CFAllocatorSetDefault</code> I get an <code>EXC_BREAKPOINT</code> exception when the next allocation occurs. The exception seems to happen inside of a call to <code>CFRetain</code> (done in the simulator but the same thing happens on a device): <pre><code>CoreFoundation`CFRetain: 0x1c089b0: pushl %ebp 0x1c089b1: movl %esp, %ebp 0x1c089b3: pushl %edi 0x1c089b4: pushl %esi 0x1c089b5: subl $16, %esp 0x1c089b8: calll 0x1c089bd ; CFRetain + 13 0x1c089bd: popl %edi 0x1c089be: movl 8(%ebp), %esi 0x1c089c1: testl %esi, %esi 0x1c089c3: jne 0x1c089db ; CFRetain + 43 0x1c089c5: int3 0x1c089c6: calll 0x1d66a00 ; symbol stub for: getpid <- EXC_BREAKPOINT (code=EXC_I386_BPT subcode=0x0) 0x1c089cb: movl %eax, (%esp) 0x1c089ce: movl $9, 4(%esp) 0x1c089d6: calll 0x1d66a4e ; symbol stub for: kill 0x1c089db: movl (%esi), %eax 0x1c089dd: testl %eax, %eax 0x1c089df: je 0x1c08a17 ; CFRetain + 103 0x1c089e1: cmpl 1838519(%edi), %eax 0x1c089e7: je 0x1c08a17 ; CFRetain + 103 0x1c089e9: movl 4(%esi), %ecx 0x1c089ec: shrl $8, %ecx 0x1c089ef: andl $1023, %ecx 0x1c089f5: cmpl 1834423(%edi,%ecx,4), %eax 0x1c089fc: je 0x1c08a17 ; CFRetain + 103 0x1c089fe: movl 1766575(%edi), %eax 0x1c08a04: movl %eax, 4(%esp) 0x1c08a08: movl %esi, (%esp) 0x1c08a0b: calll 0x1d665c8 ; symbol stub for: objc_msgSend </code></pre>
Tags
<iphone><ios><memory-management><uiwebview><core-foundation>
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Anyone use CFAllocatorSetDefault succesfully in an iPhone app?
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1. USiphone007
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