Commit f39aa06cfae97b030f42c7ab176e45b0b80c5938
1 parent
ebd8d90f
Three steps to FIFO
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4 changed files
with
75 additions
and
3 deletions
examples09/07-fifo/fifo1_bad.cpp
0 → 100644
1 | +#include <deque> | ||
2 | +#include <list> | ||
3 | +#include <iostream> | ||
4 | +#include <thread> | ||
5 | +#include <unistd.h> | ||
6 | +#include <chrono> | ||
7 | + | ||
8 | +using namespace std; | ||
9 | + | ||
10 | +std::deque<unsigned int> FIFO; | ||
11 | + | ||
12 | +void process() | ||
13 | +{ | ||
14 | + while(1) | ||
15 | + { | ||
16 | + if (!FIFO.empty()) | ||
17 | + { | ||
18 | + cout << FIFO.back() << endl; | ||
19 | + FIFO.pop_back(); | ||
20 | + }; | ||
21 | + } | ||
22 | +} | ||
23 | + | ||
24 | +int main() | ||
25 | +{ | ||
26 | + std::thread t(process); | ||
27 | + unsigned int i = 0; | ||
28 | + while(1) | ||
29 | + { | ||
30 | + FIFO.push_front(i++); | ||
31 | + std::this_thread::sleep_for(10ms); | ||
32 | + } | ||
33 | +} |
examples09/07-fifo/fifo2.cpp
0 → 100644
1 | +#include <deque> | ||
2 | +#include <list> | ||
3 | +#include <iostream> | ||
4 | +#include <thread> | ||
5 | +#include <mutex> | ||
6 | +#include <unistd.h> | ||
7 | +#include <chrono> | ||
8 | + | ||
9 | +using namespace std; | ||
10 | + | ||
11 | +std::deque<unsigned int> FIFO; | ||
12 | +std::mutex FIFO_lock; | ||
13 | + | ||
14 | +void process() | ||
15 | +{ | ||
16 | + while(1) | ||
17 | + { | ||
18 | + std::unique_lock l(FIFO_lock); | ||
19 | + if(!FIFO.empty()) | ||
20 | + { | ||
21 | + cout << FIFO.back() << endl; | ||
22 | + FIFO.pop_back(); | ||
23 | + } | ||
24 | + } | ||
25 | +} | ||
26 | + | ||
27 | +int main() | ||
28 | +{ | ||
29 | + std::thread t(process); | ||
30 | + unsigned int i = 0; | ||
31 | + while(1) | ||
32 | + { | ||
33 | + { | ||
34 | + std::unique_lock l(FIFO_lock); | ||
35 | + FIFO.push_front(i++); | ||
36 | + } | ||
37 | + std::this_thread::sleep_for(10ms); | ||
38 | + } | ||
39 | +} |
examples09/07-fifo/fifo.cpp renamed to examples09/07-fifo/fifo3.cpp
examples09/07-fifo/makefile
1 | -all: fifo | 1 | +all: fifo1_bad fifo2 fifo3 |
2 | 2 | ||
3 | -fifo: fifo.cpp | 3 | +.cpp: |
4 | g++ -std=c++17 -g -Wall -pedantic $^ -o $@ -lpthread | 4 | g++ -std=c++17 -g -Wall -pedantic $^ -o $@ -lpthread |
5 | 5 | ||
6 | 6 | ||
7 | .PHONY: clean | 7 | .PHONY: clean |
8 | 8 | ||
9 | clean: | 9 | clean: |
10 | - -rm fifo | ||
11 | \ No newline at end of file | 10 | \ No newline at end of file |
11 | + -rm fifo1_bad fifo2 fifo3 | ||
12 | \ No newline at end of file | 12 | \ No newline at end of file |