common: compile libcommon as C++

[lttng-tools.git] / src / common / fs-handle.cpp

diff --git a/src/common/fs-handle.cpp b/src/common/fs-handle.cpp
new file mode 100644 (file)
index 0000000..bed0010
--- /dev/null
+++ b/src/common/fs-handle.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2020 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#include <common/fs-handle-internal.h>
+#include <common/fs-handle.h>
+#include <common/readwrite.h>
+
+int fs_handle_get_fd(struct fs_handle *handle)
+{
+       return handle->get_fd(handle);
+}
+
+void fs_handle_put_fd(struct fs_handle *handle)
+{
+       return handle->put_fd(handle);
+}
+
+int fs_handle_unlink(struct fs_handle *handle)
+{
+       return handle->unlink(handle);
+}
+
+int fs_handle_close(struct fs_handle *handle)
+{
+       return handle->close(handle);
+}
+
+ssize_t fs_handle_read(struct fs_handle *handle, void *buf, size_t count)
+{
+       ssize_t ret;
+       const int fd = fs_handle_get_fd(handle);
+
+       if (fd < 0) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = lttng_read(fd, buf, count);
+       fs_handle_put_fd(handle);
+end:
+       return ret;
+}
+
+ssize_t fs_handle_write(struct fs_handle *handle, const void *buf, size_t count)
+{
+       ssize_t ret;
+       const int fd = fs_handle_get_fd(handle);
+
+       if (fd < 0) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = lttng_write(fd, buf, count);
+       fs_handle_put_fd(handle);
+end:
+       return ret;
+}
+
+int fs_handle_truncate(struct fs_handle *handle, off_t offset)
+{
+       int ret;
+       const int fd = fs_handle_get_fd(handle);
+
+       if (fd < 0) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = ftruncate(fd, offset);
+       fs_handle_put_fd(handle);
+end:
+       return ret;
+}
+
+off_t fs_handle_seek(struct fs_handle *handle, off_t offset, int whence)
+{
+       off_t ret;
+       const int fd = fs_handle_get_fd(handle);
+
+       if (fd < 0) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = lseek(fd, offset, whence);
+       fs_handle_put_fd(handle);
+end:
+       return ret;
+}