Files
scylladb/tests/fileiotest.cc
Raphael S. Carvalho 89147b2532 fileiotest: verify read size
add assert to dma_read return

Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
2014-10-02 15:45:06 +03:00

53 lines
1.7 KiB
C++

/*
* Copyright (C) 2014 Cloudius Systems, Ltd.
*/
#include <algorithm>
#include "core/reactor.hh"
struct file_test {
file_test(file&& f) : f(std::move(f)) {}
file f;
semaphore sem = { 0 };
semaphore par = { 1000 };
};
int main(int ac, char** av) {
static constexpr auto max = 10000;
engine.open_file_dma("testfile.tmp").then([] (file f) {
auto ft = new file_test{std::move(f)};
for (size_t i = 0; i < max; ++i) {
ft->par.wait().then([ft, i] {
auto wbuf = allocate_aligned_buffer<unsigned char>(4096, 4096);
std::fill(wbuf.get(), wbuf.get() + 4096, i);
auto wb = wbuf.get();
ft->f.dma_write(i * 4096, wb, 4096).then(
[ft, i, wbuf = std::move(wbuf)] (size_t ret) mutable {
assert(ret == 4096);
auto rbuf = allocate_aligned_buffer<unsigned char>(4096, 4096);
auto rb = rbuf.get();
ft->f.dma_read(i * 4096, rb, 4096).then(
[ft, i, rbuf = std::move(rbuf), wbuf = std::move(wbuf)] (size_t ret) mutable {
assert(ret == 4096);
bool eq = std::equal(rbuf.get(), rbuf.get() + 4096, wbuf.get());
assert(eq);
ft->sem.signal(1);
ft->par.signal();
});
});
});
}
ft->sem.wait(max).then([ft] () mutable {
return ft->f.flush();
}).then([ft] () mutable {
std::cout << "done\n";
delete ft;
::exit(0);
});
});
engine.run();
return 0;
}