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fix(plugins): Avoid double device control releases

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This was not really broken, but it generated a debug log message
containing the keyword 'error' consistently, which is convoluting any
debugging session.

This commit also adds some trace log message on plugin device control
API calls.
This commit is contained in:
Dennis Klein
2021-07-05 20:43:45 +02:00
committed by Dennis Klein
parent b374c235f0
commit e2452fa7e4
2 changed files with 11 additions and 1 deletions
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5
fairmq/PluginServices.cxx
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@@ -6,6 +6,7 @@
* copied verbatim in the file "LICENSE" *
********************************************************************************/
#include <fairlogger/Logger.h>
#include <fairmq/PluginServices.h>
#include <fairmq/tools/Strings.h>
@@ -34,8 +35,10 @@ auto PluginServices::TakeDeviceControl(const string& controller) -> void
if (!fDeviceController) {
fDeviceController = controller;
LOG(trace) << "Plugin '" << controller << "' took over control.";
} else if (fDeviceController == controller) {
// nothing to do
LOG(trace) << "Plugin '" << controller << "' is already in control.";
} else {
throw DeviceControlError{tools::ToString(
"Plugin '", controller, "' is not allowed to take over control. ",
@@ -49,6 +52,7 @@ auto PluginServices::StealDeviceControl(const string& controller) -> void
lock_guard<mutex> lock{fDeviceControllerMutex};
fDeviceController = controller;
LOG(trace) << "Plugin '" << controller << "' steals control!";
}
auto PluginServices::ReleaseDeviceControl(const string& controller) -> void
@@ -58,6 +62,7 @@ auto PluginServices::ReleaseDeviceControl(const string& controller) -> void
if (fDeviceController == controller) {
fDeviceController = boost::none;
LOG(trace) << "Plugin '" << controller << "' releases control.";
} else {
LOG(debug) << "Plugin '" << controller << "' cannot release control "
<< "because it has no control.";