amass/qtpromise
1
0
Fork 0
mirror of https://github.com/simonbrunel/qtpromise.git synced 2024-11-22 02:34:30 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Enhance QPromise<T>::wait documentation

Browse Source
This commit is contained in:
Simon Brunel 2018-02-17 13:00:21 +01:00
parent 9d2a4ca00f
commit f794916be6
2 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
View File

@ -1,3 +1,4 @@
_book
dist dist
node_modules node_modules
*.gcno *.gcno

14
docs/qtpromise/qpromise/wait.md
View File

@ -4,18 +4,20 @@
QPromise<T>::wait() -> QPromise<T> QPromise<T>::wait() -> QPromise<T>
``` ```
This method holds the execution of the remaining code **without** blocking the event loop of the current thread: This method holds the execution of the remaining code until the `input` promise is resolved (either fulfilled or rejected), **without** blocking the event loop of the current thread:
```cpp ```cpp
int result = -1; int result = -1;
QPromise<int> input = qPromise(QtConcurrent::run([]() { return 42; }));
auto output = input.then([&](int res) { QPromise<int> input = qPromise(QtConcurrent::run([]() {
return 42;
})).tap([&](int res) {
result = res; result = res;
}); });
// output.isPending() is true && result is -1 // input.isPending() is true && result is -1
output.wait(); input.wait();
// output.isPending() is false && result is 42 // input.isPending() is false && result is 42
``` ```