[libcamera-devel] [PATCH] libcamera: base: utils: Add missing constructor for Duration
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Wed Apr 6 17:18:33 CEST 2022
The Duration class is missing the equivalent to the
std::chrono::duration constructor that takes a number of ticks expressed
as a scalar. Fix it, which allows initializing a Duration instance to 0
or 0.0.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
include/libcamera/base/utils.h | 6 ++++++
src/libcamera/base/utils.cpp | 9 +++++++++
2 files changed, 15 insertions(+)
diff --git a/include/libcamera/base/utils.h b/include/libcamera/base/utils.h
index 9ab18101cf27..cfff05836de7 100644
--- a/include/libcamera/base/utils.h
+++ b/include/libcamera/base/utils.h
@@ -327,6 +327,12 @@ class Duration : public std::chrono::duration<double, std::nano>
public:
Duration() = default;
+ template<typename Rep>
+ constexpr explicit Duration(const Rep &r)
+ : BaseDuration(r)
+ {
+ }
+
template<typename Rep, typename Period>
constexpr Duration(const std::chrono::duration<Rep, Period> &d)
: BaseDuration(d)
diff --git a/src/libcamera/base/utils.cpp b/src/libcamera/base/utils.cpp
index 8cf8a5b2c104..6a307940448e 100644
--- a/src/libcamera/base/utils.cpp
+++ b/src/libcamera/base/utils.cpp
@@ -406,6 +406,15 @@ std::string toAscii(const std::string &str)
* duration in nanoseconds with double precision
*/
+/**
+ * \fn Duration::Duration(const Rep &r)
+ * \brief Construct a Duration with \a r ticks
+ * \param[in] r The number of ticks
+ *
+ * The constructed \a Duration object is internally represented in double
+ * precision with \a r nanoseconds ticks.
+ */
+
/**
* \fn Duration::Duration(const std::chrono::duration<Rep, Period> &d)
* \brief Construct a Duration by converting an arbitrary std::chrono::duration
--
Regards,
Laurent Pinchart
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