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-rw-r--r--src/libcamera/base/log.cpp49
1 files changed, 43 insertions, 6 deletions
diff --git a/src/libcamera/base/log.cpp b/src/libcamera/base/log.cpp
index a4a5b452..55fbd7b0 100644
--- a/src/libcamera/base/log.cpp
+++ b/src/libcamera/base/log.cpp
@@ -314,10 +314,11 @@ private:
friend LogCategory;
void registerCategory(LogCategory *category);
+ LogCategory *findCategory(const char *name) const;
static bool destroyed_;
- std::unordered_set<LogCategory *> categories_;
+ std::vector<LogCategory *> categories_;
std::list<std::pair<std::string, LogSeverity>> levels_;
std::shared_ptr<LogOutput> output_;
@@ -707,12 +708,12 @@ LogSeverity Logger::parseLogLevel(const std::string &level)
* \brief Register a log category with the logger
* \param[in] category The log category
*
- * Log categories must have unique names. If a category with the same name
- * already exists this function performs no operation.
+ * Log categories must have unique names. It is invalid to call this function
+ * if a log category with the same name already exists.
*/
void Logger::registerCategory(LogCategory *category)
{
- categories_.insert(category);
+ categories_.push_back(category);
const std::string &name = category->name();
for (const std::pair<std::string, LogSeverity> &level : levels_) {
@@ -737,6 +738,22 @@ void Logger::registerCategory(LogCategory *category)
}
/**
+ * \brief Find an existing log category with the given name
+ * \param[in] name Name of the log category
+ * \return The pointer to the found log category or nullptr if not found
+ */
+LogCategory *Logger::findCategory(const char *name) const
+{
+ if (auto it = std::find_if(categories_.begin(), categories_.end(),
+ [name](auto c) { return c->name() == name; });
+ it != categories_.end()) {
+ return *it;
+ }
+
+ return nullptr;
+}
+
+/**
* \enum LogSeverity
* Log message severity
* \var LogDebug
@@ -761,13 +778,33 @@ void Logger::registerCategory(LogCategory *category)
*/
/**
+ * \brief Create a new LogCategory or return an existing one
+ * \param[in] name Name of the log category
+ *
+ * Create and return a new LogCategory with the given name if such a category
+ * does not yet exist, or return the existing one.
+ *
+ * \return The pointer to the LogCategory
+ */
+LogCategory *LogCategory::create(const char *name)
+{
+ LogCategory *category = Logger::instance()->findCategory(name);
+
+ if (!category) {
+ category = new LogCategory(name);
+ Logger::instance()->registerCategory(category);
+ }
+
+ return category;
+}
+
+/**
* \brief Construct a log category
* \param[in] name The category name
*/
LogCategory::LogCategory(const char *name)
: name_(name), severity_(LogSeverity::LogInfo)
{
- Logger::instance()->registerCategory(this);
}
/**
@@ -804,7 +841,7 @@ void LogCategory::setSeverity(LogSeverity severity)
*/
const LogCategory &LogCategory::defaultCategory()
{
- static const LogCategory *category = new LogCategory("default");
+ static const LogCategory *category = LogCategory::create("default");
return *category;
}