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Prevent race condition in wait

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topjohnwu 2023-12-23 06:33:12 +08:00
parent f1e0bc3e4a
commit 48b1c26dc8
1 changed files with 4 additions and 4 deletions
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8
native/src/core/resetprop/resetprop.cpp
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@ -130,12 +130,12 @@ static void read_prop_with_cb(const prop_info *pi, void *cb) {
template<class StringType>
struct prop_to_string : prop_cb {
void exec(const char *, const char *value, uint32_t serial) override {
void exec(const char *, const char *value, uint32_t s) override {
val = value;
s = serial;
serial = s;
}
StringType val;
uint32_t s;
uint32_t serial;
};
template<> void prop_to_string<rust::String>::exec(const char *, const char *value, uint32_t) {
@ -237,7 +237,7 @@ static StringType wait_prop(const char *name, const char *old_value) {
if (old_value == nullptr || cb.val == old_value) {
LOGD("resetprop: waiting for prop [%s]\n", name);
uint32_t new_serial;
system_property_wait(pi, pi->serial, &new_serial, nullptr);
system_property_wait(pi, cb.serial, &new_serial, nullptr);
read_prop_with_cb(pi, &cb);
}