Fix warnings in BinarySerializer #963
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hdwhdw
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Jan 3, 2025
| @@ -34,7 +43,7 @@ class BinarySerializer { | |||
| } | |||
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| static size_t serializeBuffer( | |||
| const char* buffer, | |||
| char* buffer, | |||
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Just curious why remove const here? Are we modifying the buffer?
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Yes, the function serializes kcos into buffer. It should never have been const.
liuh-80
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Jan 15, 2025
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| @@ -11,6 +10,16 @@ using namespace std; | |||
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| namespace swss { | |||
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| template <class T> static inline T read_unaligned(const char *buffer) { | |||
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do we need to check the case that T R/W has enough space for buffer memcpy?
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By the time these functions are called, the de/serializer has already checked the buffer's capacity.
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This PR adjusts BinarySerializer in these ways:
A short discussion on this was held here previously: #921 (comment)
On x86/ARM, unaligned reads/writes are acceptable with general purpose registers, but they may crash on x86 if the optimizer decides to use a SIMD register.