system_control: Make functions internally linked where applicable
These functions are only ever used internally as implementation details for GenerateRandomRange(), so these can be given internal linkage.
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@ -7,22 +7,15 @@
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#include "core/hle/kernel/memory/system_control.h"
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namespace Kernel::Memory::SystemControl {
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u64 GenerateRandomU64ForInit() {
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static std::random_device device;
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static std::mt19937 gen(device());
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static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
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return distribution(gen);
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}
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namespace {
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template <typename F>
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u64 GenerateUniformRange(u64 min, u64 max, F f) {
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/* Handle the case where the difference is too large to represent. */
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// Handle the case where the difference is too large to represent.
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if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) {
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return f();
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}
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/* Iterate until we get a value in range. */
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// Iterate until we get a value in range.
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const u64 range_size = ((max + 1) - min);
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const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size;
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while (true) {
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@ -32,6 +25,14 @@ u64 GenerateUniformRange(u64 min, u64 max, F f) {
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}
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}
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u64 GenerateRandomU64ForInit() {
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static std::random_device device;
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static std::mt19937 gen(device());
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static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max());
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return distribution(gen);
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}
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} // Anonymous namespace
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u64 GenerateRandomRange(u64 min, u64 max) {
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return GenerateUniformRange(min, max, GenerateRandomU64ForInit);
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}
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@ -8,11 +8,6 @@
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namespace Kernel::Memory::SystemControl {
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u64 GenerateRandomU64ForInit();
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template <typename F>
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u64 GenerateUniformRange(u64 min, u64 max, F f);
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u64 GenerateRandomRange(u64 min, u64 max);
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} // namespace Kernel::Memory::SystemControl
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