diff options
| -rw-r--r-- | include/libcamera/file_descriptor.h | 3 | ||||
| -rw-r--r-- | src/libcamera/file_descriptor.cpp | 26 |
2 files changed, 29 insertions, 0 deletions
diff --git a/include/libcamera/file_descriptor.h b/include/libcamera/file_descriptor.h index d514aac7..988f9b7a 100644 --- a/include/libcamera/file_descriptor.h +++ b/include/libcamera/file_descriptor.h @@ -8,6 +8,7 @@ #define __LIBCAMERA_FILE_DESCRIPTOR_H__ #include <memory> +#include <sys/types.h> namespace libcamera { @@ -27,6 +28,8 @@ public: int fd() const { return fd_ ? fd_->fd() : -1; } FileDescriptor dup() const; + ino_t inode() const; + private: class Descriptor { diff --git a/src/libcamera/file_descriptor.cpp b/src/libcamera/file_descriptor.cpp index 9f9ebc81..0409c3e1 100644 --- a/src/libcamera/file_descriptor.cpp +++ b/src/libcamera/file_descriptor.cpp @@ -8,6 +8,8 @@ #include <libcamera/file_descriptor.h> #include <string.h> +#include <sys/stat.h> +#include <sys/types.h> #include <unistd.h> #include <utility> @@ -221,6 +223,30 @@ FileDescriptor FileDescriptor::dup() const return FileDescriptor(fd()); } +/** + * \brief Retrieve the file descriptor inode + * + * \todo Should this move to the File class ? + * + * \return The file descriptor inode on success, or 0 on error + */ +ino_t FileDescriptor::inode() const +{ + if (!isValid()) + return 0; + + struct stat st; + int ret = fstat(fd_->fd(), &st); + if (ret < 0) { + ret = -errno; + LOG(FileDescriptor, Fatal) + << "Failed to fstat() fd: " << strerror(-ret); + return 0; + } + + return st.st_ino; +} + FileDescriptor::Descriptor::Descriptor(int fd, bool duplicate) { if (!duplicate) { |