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https://github.com/topjohnwu/Magisk
synced 2024-11-13 20:54:12 +01:00
Support waiting on non-exist prop
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parent
2afcdc64a0
commit
941a363c5a
@ -226,20 +226,23 @@ template<class StringType>
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static StringType wait_prop(const char *name, const char *old_value) {
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if (!check_legal_property_name(name))
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return {};
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auto pi = system_property_find(name);
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if (!pi) {
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LOGD("resetprop: prop [%s] does not exist\n", name);
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return {};
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const prop_info *pi;
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auto serial = __system_property_area_serial();
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while (!(pi = system_property_find(name))) {
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LOGD("resetprop: waiting for prop [%s] to exist\n", name);
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system_property_wait(nullptr, serial, &serial, nullptr);
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}
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prop_to_string<StringType> cb;
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read_prop_with_cb(pi, &cb);
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if (old_value == nullptr || cb.val == old_value) {
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while (old_value == nullptr || cb.val == old_value) {
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LOGD("resetprop: waiting for prop [%s]\n", name);
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uint32_t new_serial;
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system_property_wait(pi, cb.serial, &new_serial, nullptr);
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read_prop_with_cb(pi, &cb);
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if (old_value == nullptr) break;
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}
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LOGD("resetprop: get prop [%s]: [%s]\n", name, cb.val.c_str());
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