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Do pushcli() and popcli() in the spinlock of XV6 need atomic?
As learning XV6's spinlock,I thought a problem and don't find answer in google.
In spinlock, pushcli() and popcli() used to insure interrupt handler run currently:
void pushcli(void)
{
int eflags;
...
wcyiming
Votes: 0
Answers: 1
Has atomic type-punning through unions defined behaviour?
Type-punning through unions has defined behaviour in C:
typedef union
{
uint32_t i;
float f;
} MyUnion;
MyUnion u;
u.f = 4.2;
print("%"PRIu32, u.i); // defined behaviour
Given via ...
dyp
Votes: 0
Answers: 1
Is a memory barrier required to read a value that is atomically modified?
Given the following:
class Foo
{
public:
void Increment()
{
_InterlockedIncrement(&m_value); // OSIncrementAtomic
}
long GetValue()
{
return m_value;
}
pr...
Mark Ingram
Votes: 0
Answers: 3
BigQuery Storage API: Atomicity of an append/write operation
As the title states, are BigQuery Storage Write Requests atomic?
I know that the legacy streaming API may return a partial error, indicating that some rows were successfully written. However, I unders...
muffe
Votes: 0
Answers: 1