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The DiffIterate call accepts a data structure argument containing the parameters of the image to "diff" and a callback function. This callback is called in the C code, making use of the recently added callbacks helper. The callback itself is called with the offset and length of the differing area in the image as well as a data parameter so that a common function can distinguish or update different data for different calls if needed (compare to a void* in C). Signed-off-by: John Mulligan <jmulligan@redhat.com>
14 lines
273 B
Go
14 lines
273 B
Go
package rbd
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/*
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#include <rbd/librbd.h>
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extern int diffIterateCallback(uint64_t ofs, size_t len, int exists, int index);
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int callDiffIterateCallback(uint64_t ofs, size_t len, int exists, int index) {
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return diffIterateCallback(ofs, len, exists, index);
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}
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*/
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import "C"
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