Critical section refers to either a piece of code that will run concurrently in several threads accessing global data or resources (requiring synchronisation), or a user-level spinlock combined with a mutex object under the Windows operating system. A critical section in the latter sense is functionally identical to a mutex that it cannot shared with a different process and that it is several orders of magnitudes faster in the non-congested case.
Questions tagged [critical-section]
529 questions
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votes
2 answers
A critical section inside or outside a thread class is better? [Example inside]
I have several threads (Providers), that are used by other threads (Workers) on concurrent basis.
Several threads means severan critical sections according to threads.
Is it impossble to place a critical section variable inside a thread class, or…
notricky
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c# Lock Doesn`t work / Critical Section
I`m trying to advance a static (int) counter using two different threads in a FOR loop, so if the loop is runs 10 times I (should) get counter=20. for some reason i keep getting different values each time i run the loop (19,20,21), even though i…
Ran
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Don't agree with Peterson's solution
#define FALSE 0
#define TRUE 1
#define N 2
int turn;
int interested[N];
void enter_region(int process) {
int other;
other = 1 - process;
interested[process] == TRUE;
turn = process; // set flag
while (turn == process && interested[other]…
Amarildo Likmeta
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how to write an atomic account transfer function
So suppose I get two bank account A and B, and I need to atomically transfer money.
The set up is the following:
`
struct account{
int64 amount;
pthread_mutex_lock m;
}
`
here is my approach:
`
bool Transfer(int from_account, int…
user3799934
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