Computers and Technology, 27.03.2020 01:24 evelynontiveros2016
Here are the codes for producer and consumer problems.
Producer:
while (true) {
/* produce an item in next produced */
while (counter == BUFFER_SIZE) ;
/* do nothing */
buffer[in] = next_produced;
in = (in + 1) % BUFFER_SIZE;
counter++;
}
Consumer:
while (true) {
while (counter == 0)
; /* do nothing */
next_consumed = buffer[out];
out = (out + 1) % BUFFER_SIZE; counter--;
/* consume the item in next consumed */
}
counter++ could be implemented by Producer as
register1 = counter
register1 = register1 + 1
counter = register1
counter-- could be implemented by Consumer as
register2 = counter
register2 = register2 - 1
counter = register2
If we set the current value of "counter " as 4, when Producer and Consumer concurrently execute, what are the possible values of ‘’counter", please give an example for each value, point out which value is the right one and analysis the reasons for the wrong values.
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Here are the codes for producer and consumer problems.
Producer:
while (true...
Producer:
while (true...
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