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Add nop()

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This commit is contained in:
Ian Gulliver
2019-05-18 23:22:38 -07:00
parent 3556a7bed5
commit 6039e4d2e9
3 changed files with 9 additions and 0 deletions
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test_loop
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7
uring.cc
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@@ -39,6 +39,13 @@ bool URing::Try() {
return false; return false;
} }
void URing::nop(const std::function<void(int32_t res)> &callback) {
auto *entry = GetEntry(callback);
auto *sqe = GetSQE();
io_uring_prep_nop(sqe);
io_uring_sqe_set_data(sqe, reinterpret_cast<void *>(entry));
}
void URing::write(int fd, const void *buf, size_t count, void URing::write(int fd, const void *buf, size_t count,
const std::function<void(int32_t res)> &callback) { const std::function<void(int32_t res)> &callback) {
std::vector<iovec> vecs{ std::vector<iovec> vecs{

2
uring.h
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@@ -13,6 +13,8 @@ class URing {
URing(uint32_t num_entries); URing(uint32_t num_entries);
~URing(); ~URing();
void nop(const std::function<void(int32_t res)> &callback);
// TODO: write/writev don't work for files because they always use offset 0 // TODO: write/writev don't work for files because they always use offset 0
void write(int fd, const void *buf, size_t count, void write(int fd, const void *buf, size_t count,
const std::function<void(int32_t res)> &callback); const std::function<void(int32_t res)> &callback);