Index wasi args_get args_sizes_get clock_res_get clock_time_get environ_get environ_sizes_get fd_advise fd_allocate fd_close fd_datasync fd_fdstat_get fd_fdstat_set_flags fd_fdstat_set_rights fd_filestat_get fd_filestat_set_size fd_filestat_set_times fd_pread fd_prestat_dir_name fd_prestat_get fd_pwrite fd_read fd_readdir fd_renumber fd_seek fd_sync fd_tell fd_write file_stat_flags filestat iovec lookup_flags path_create_directory path_filestat_get path_filestat_set_times path_link path_open path_readlink path_remove_directory path_rename path_symlink path_unlink_file poll_oneoff proc_exit proc_raise random_get sched_yield sock_accept sock_recv sock_send sock_shutdown
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Get metadata about a preopened file descriptor
fd_prestat_get (
fd: i32The preopened file descriptor to querybuf: i32A pointer to a `Prestat` structure where the metadata will be written
) =>
error: i32 

The fd_prestat_get() function is used to retrieve metadata about a preopened file descriptor (fd). Preopened file descriptors represent files or directories that are provided to a WebAssembly module at startup. This function allows obtaining information about such preopened file descriptors.

The function takes the file descriptor as input and writes the corresponding metadata into the provided buffer (buf) of type __wasi_prestat. The metadata includes information such as the type of the preopened resource.

Note

The fd_prestat_get() function is used to retrieve metadata about a preopened file descriptor. Preopened file descriptors are files or directories that are available to the WebAssembly module at startup. The function takes the preopened file descriptor as input and writes the corresponding metadata into the provided buffer. The metadata provides information about the type of the preopened resource.

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