Function _fdt_fd_alloc

components/dfs/dfs_v2/src/dfs.c:144–151

* @brief Allocate a file descriptor from the file descriptor table * * @param[in,out] fdt Pointer to the file descriptor table to allocate from * @param[in] startfd The starting file descriptor index to begin searching * * @return int The allocated file descriptor index if successful (>= 0), * -1 if allocation failed * * @note This is a wrapper function that calls _fdt_slot_alloc()

 *       the actual allocation. It maintains the same behavior as _fdt_slot_alloc().
 */
static int _fdt_fd_alloc(struct dfs_fdtable *fdt, int startfd)
{
    int idx;

    idx = _fdt_slot_alloc(fdt, startfd);

    return idx;
}

/**
 * this function will lock device file system.