You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
1.3 KiB
50 lines
1.3 KiB
7 months ago
|
# lws minimal dbus client
|
||
|
|
|
||
|
|
This demonstrates nonblocking, asynchronous dbus method calls as the client.
|
||
|
|
|
||
|
|
## build
|
||
|
|
|
||
|
|
Using libdbus requires additional non-default include paths setting, same as
|
||
|
|
is necessary for lws build described in ./lib/roles/dbus/README.md
|
||
|
|
|
||
|
|
CMake can guess one path and the library name usually, see the README above
|
||
|
|
for details of how to override for custom libdbus and cross build.
|
||
|
|
|
||
|
|
Fedora example:
|
||
|
|
```
|
||
|
|
$ cmake .. -DLWS_DBUS_INCLUDE2="/usr/lib64/dbus-1.0/include"
|
||
|
|
$ make
|
||
|
|
```
|
||
|
|
|
||
|
|
Ubuntu example:
|
||
|
|
```
|
||
|
|
$ cmake .. -DLWS_DBUS_INCLUDE2="/usr/lib/x86_64-linux-gnu/dbus-1.0/include"
|
||
|
|
$ make
|
||
|
|
```
|
||
|
|
|
||
|
|
## usage
|
||
|
|
|
||
|
|
Commandline option|Meaning
|
||
|
|
---|---
|
||
|
|
-d <loglevel>|Debug verbosity in decimal, eg, -d15
|
||
|
|
|
||
|
|
The minimal client connects to the minimal dbus server example, which is
|
||
|
|
expected to be listening on its default abstract unix domain socket path.
|
||
|
|
|
||
|
|
It call the server Echo method with "Hello!" and returns to the event loop.
|
||
|
|
When the reply comes, it prints the returned message.
|
||
|
|
|
||
|
|
Afterwards it just sits there receiving unsolicited messages from the server
|
||
|
|
example, until closed by the user.
|
||
|
|
|
||
|
|
```
|
||
|
|
$ ./lws-minimal-dbus-client
|
||
|
|
ctx
|
||
|
|
[2018/10/05 06:08:31:4901] NOTICE: pending_call_notify
|
||
|
|
[2018/10/05 06:08:31:4929] USER: pending_call_notify: received 'Hello!'
|
||
|
|
^C[2018/10/05 06:09:22:4409] NOTICE: destroy_dbus_client_conn
|
||
|
|
[2018/10/05 06:09:22:4691] NOTICE: Exiting cleanly
|
||
|
|
...
|
||
|
|
```
|
||
|
|
|