coffee/continuable
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minor improvements

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Denis Blank 2015-08-09 18:34:13 +02:00 committed by Naios
parent 9f300419d2
commit 89ce1a9616
1 changed files with 13 additions and 12 deletions
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@ -17,7 +17,7 @@ This library aims to provide full support for **async continuation chains with c
Continuable<std::string> continuable =
make_continuable([](Callback<std::string>&& callback)
{
callback("some data");
callback("some data");
});
```
@ -27,13 +27,14 @@ Continuable<std::string> continuable =
```c++
Continuable<ResultSet> mysql_query(std::string&& query)
{
return make_continuable([query = std::move(query)](Callback<ResultSet>&& callback) mutable
{
// Pass the callback to the handler
// which calls the callback when finished.
// Everything which takes a callback works with continuables.
mysql_handle_async_query(std::move(query), std::move(callback));
});
return make_continuable(
[query = std::move(query)](Callback<ResultSet>&& callback) mutable
{
// Pass the callback to the handler
// which calls the callback when finished.
// Everything which takes a callback works with continuables.
mysql_handle_async_query(std::move(query), std::move(callback));
});
}
// You can use the helper function like you would normally do:
@ -41,7 +42,7 @@ mysql_query("DELETE FROM users WHERE id = 27361");
// Or using chaining to handle the result which is covered in the next topic .
mysql_query("SELECT id, name FROM users")
.then([](ResultSet result)
.then([](ResultSet result)
{
});
```
@ -52,11 +53,11 @@ Chaining continuables is very easy:
```c++
(mysql_query("SELECT id, name FROM users")
&& http_request("http://github.com"))
&& http_request("http://github.com"))
.then([](ResultSet result, std::string page_content)
{
// Pass one argument to the next continuation...
return page_content.empty();
// Pass one argument to the next continuation...
return page_content.empty();
// ... or pass multiple args using tuples...
return std::make_tuple(std::move(result), page_content.empty());