Update wasi to use `string` and slice types

core/os/os_wasi.odin

@@ -27,29 +27,76 @@ stderr: Handle = 2
 
 write :: proc(fd: Handle, data: []byte) -> (int, Errno) {
 	iovs := wasi.ciovec_t(data)
-	n, err := wasi.fd_write(wasi.fd_t(fd), &iovs, 1)
+	n, err := wasi.fd_write(wasi.fd_t(fd), {iovs})
 	return int(n), Errno(err)
 }
 read :: proc(fd: Handle, data: []byte) -> (int, Errno) {
 	iovs := wasi.iovec_t(data)
-	n, err := wasi.fd_read(wasi.fd_t(fd), &iovs, 1)
+	n, err := wasi.fd_read(wasi.fd_t(fd), {iovs})
 	return int(n), Errno(err)
 }
 write_at :: proc(fd: Handle, data: []byte, offset: i64) -> (int, Errno) {
 	iovs := wasi.ciovec_t(data)
-	n, err := wasi.fd_pwrite(wasi.fd_t(fd), &iovs, 1, wasi.filesize_t(offset))
+	n, err := wasi.fd_pwrite(wasi.fd_t(fd), {iovs}, wasi.filesize_t(offset))
 	return int(n), Errno(err)
 }
 read_at :: proc(fd: Handle, data: []byte, offset: i64) -> (int, Errno) {
 	iovs := wasi.iovec_t(data)
-	n, err := wasi.fd_pread(wasi.fd_t(fd), &iovs, 1, wasi.filesize_t(offset))
+	n, err := wasi.fd_pread(wasi.fd_t(fd), {iovs}, wasi.filesize_t(offset))
 	return int(n), Errno(err)
 }
 open :: proc(path: string, mode: int = O_RDONLY, perm: int = 0) -> (Handle, Errno) {
-	return 0, 0
+	flags: wasi.oflags_t
+	fs_rights_base:       wasi.rights_t
+	fs_rights_inheriting: wasi.rights_t
+	fdflags:              wasi.fdflags_t
+	
+	if mode & O_RDONLY == O_RDONLY {
+		fs_rights_base += {.FD_READ}
+	}
+	if mode & O_WRONLY == O_WRONLY {
+		fs_rights_base += {.FD_WRITE}
+	}
+	if mode & O_RDWR == O_RDWR {
+		fs_rights_base += {.FD_READ, .FD_WRITE}
+	}
+	if mode & O_CREATE == O_CREATE {
+		flags += {.CREATE}
+		fs_rights_base += {.FD_WRITE}
+	}
+	if mode & O_EXCL == O_EXCL {
+		flags += {.EXCL}
+	}
+	if mode & O_NOCTTY == O_NOCTTY {
+		
+	}
+	if mode & O_TRUNC == O_TRUNC {
+		flags += {.TRUNC}
+	}
+	if mode & O_NONBLOCK == O_NONBLOCK {
+		fdflags += {.NONBLOCK}
+	}
+	if mode & O_APPEND == O_APPEND {
+		fdflags += {.APPEND}
+	}
+	if mode & O_SYNC == O_SYNC {
+		fdflags += {.DSYNC, .RSYNC, .SYNC}
+	}
+	if mode & O_ASYNC == O_ASYNC {
+		
+	}
+	if mode & O_CLOEXEC == O_CLOEXEC {
+		
+	}
+	fs_rights_inheriting = fs_rights_base
+	
+	
+	fd, err := wasi.path_open(0, {}, path, flags, fs_rights_base, fs_rights_inheriting, fdflags)
+	return Handle(fd), Errno(err)
 }
 close :: proc(fd: Handle) -> Errno {
-	return 0
+	err := wasi.fd_close(wasi.fd_t(fd))
+	return Errno(err)
 }
 seek :: proc(fd: Handle, offset: i64, whence: int) -> (i64, Errno) {
 	n, err := wasi.fd_seek(wasi.fd_t(fd), wasi.filedelta_t(offset), wasi.whence_t(whence))

core/runtime/os_specific_wasi.odin

@@ -5,6 +5,6 @@ import "core:sys/wasm/wasi"
 
 _os_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	data := (wasi.ciovec_t)(data)
-	n, err := wasi.fd_write(1, &data, 1)
+	n, err := wasi.fd_write(1, {data})
 	return int(n), _OS_Errno(err)
 }

core/sys/wasm/wasi/wasi_api.odin

@@ -1087,17 +1087,6 @@ foreign wasi {
 		 */
 		fst_flags: fstflags_t,
 	) -> errno_t ---
-	/**
-	 * Return a description of the given preopened file descriptor.
-	 */
-	fd_prestat_dir_name :: proc(
-		fd: fd_t,
-		/**
-		 * A buffer into which to write the preopened directory name.
-		 */
-		path: [^]u8,
-		path_len: size_t,
-	) -> errno_t ---
 	/**
 	 * Atomically replace a file descriptor by renumbering another file descriptor.
 	 * Due to the strong focus on thread safety, this environment does not provide
@@ -1122,135 +1111,6 @@ foreign wasi {
 	fd_sync :: proc(
 		f: fd_t,
 	) -> errno_t ---
-	/**
-	 * Create a directory.
-	 * Note: This is similar to `mkdirat` in POSIX.
-	 */
-	path_create_directory :: proc(
-		fd: fd_t,
-		/**
-		 * The path at which to create the directory.
-		 */
-		path: [^]byte,
-		path_len: size_t,
-	) -> errno_t ---
-	/**
-	 * Adjust the timestamps of a file or directory.
-	 * Note: This is similar to `utimensat` in POSIX.
-	 */
-	path_filestat_set_times :: proc(
-		fd: fd_t,
-		/**
-		 * Flags determining the method of how the path is resolved.
-		 */
-		flags: lookupflags_t,
-		/**
-		 * The path of the file or directory to operate on.
-		 */
-		path: [^]byte,
-		path_len: size_t,
-		/**
-		 * The desired values of the data access timestamp.
-		 */
-		atim: timestamp_t,
-		/**
-		 * The desired values of the data modification timestamp.
-		 */
-		mtim: timestamp_t,
-		/**
-		 * A bitmask indicating which timestamps to adjust.
-		 */
-		fst_flags: fstflags_t,
-	) -> errno_t ---
-	/**
-	 * Create a hard link.
-	 * Note: This is similar to `linkat` in POSIX.
-	 */
-	path_link :: proc(
-		old_fd: fd_t,
-		/**
-		 * Flags determining the method of how the path is resolved.
-		 */
-		old_flags: lookupflags_t,
-		/**
-		 * The source path from which to link.
-		 */
-		old_path: [^]byte,
-		old_path_len: size_t,
-		/**
-		 * The working directory at which the resolution of the new path starts.
-		 */
-		new_fd: fd_t,
-		/**
-		 * The destination path at which to create the hard link.
-		 */
-		new_path: [^]byte,
-		new_path_len: size_t,
-	) -> errno_t ---
-	/**
-	 * Remove a directory.
-	 * Return `errno::notempty` if the directory is not empty.
-	 * Note: This is similar to `unlinkat(fd, path, AT_REMOVEDIR)` in POSIX.
-	 */
-	path_remove_directory :: proc(
-		fd: fd_t,
-		/**
-		 * The path to a directory to remove.
-		 */
-		path: [^]byte,
-		path_len: size_t,
-	) -> errno_t ---
-	/**
-	 * Rename a file or directory.
-	 * Note: This is similar to `renameat` in POSIX.
-	 */
-	path_rename :: proc(
-		fd: fd_t,
-		/**
-		 * The source path of the file or directory to rename.
-		 */
-		old_path: [^]byte,
-		old_path_len: size_t,
-		/**
-		 * The working directory at which the resolution of the new path starts.
-		 */
-		new_fd: fd_t,
-		/**
-		 * The destination path to which to rename the file or directory.
-		 */
-		new_path: [^]byte,
-		new_path_len: size_t,
-	) -> errno_t ---
-	/**
-	 * Create a symbolic link.
-	 * Note: This is similar to `symlinkat` in POSIX.
-	 */
-	path_symlink :: proc(
-		/**
-		 * The contents of the symbolic link.
-		 */
-		old_path: [^]byte,
-		old_path_len: size_t,
-		fd: fd_t,
-		/**
-		 * The destination path at which to create the symbolic link.
-		 */
-		new_path: [^]byte,
-		new_path_len: size_t,
-	) -> errno_t ---
-	/**
-	 * Unlink a file.
-	 * Return `errno::isdir` if the path refers to a directory.
-	 * Note: This is similar to `unlinkat(fd, path, 0)` in POSIX.
-	 */
-	path_unlink_file :: proc(
-		fd: fd_t,
-		/**
-		 * The path to a file to unlink.
-		 */
-		path: [^]byte,
-		path_len: size_t,
-	) -> errno_t ---
 	/**
 	 * Terminate the process normally. An exit code of 0 indicates successful
 	 * termination of the program. The meanings of other values is dependent on
@@ -1277,21 +1137,6 @@ foreign wasi {
 	 * Note: This is similar to `sched_yield` in POSIX.
 	 */
 	sched_yield :: proc() -> errno_t ---
-	/**
-	 * Write high-quality random data into a buffer.
-	 * This function blocks when the implementation is unable to immediately
-	 * provide sufficient high-quality random data.
-	 * This function may execute slowly, so when large mounts of random data are
-	 * required, it's advisable to use this function to seed a pseudo-random
-	 * number generator, rather than to provide the random data directly.
-	 */
-	random_get :: proc(
-		/**
-		 * The buffer to fill with random data.
-		 */
-		buf: [^]u8,
-		buf_len: size_t,
-	) -> errno_t ---
 	/**
 	 * Shut down socket send and receive channels.
 	 * Note: This is similar to `shutdown` in POSIX.
@@ -1399,17 +1244,13 @@ fd_pread :: proc "c" (
 	/**
 	 * List of scatter/gather vectors in which to store data.
 	 */
-	iovs: [^]iovec_t,
-	/**
-	 * The length of the array pointed to by `iovs`.
-	 */
-	iovs_len: size_t,
+	iovs: []iovec_t,
 	/**
 	 * The offset within the file at which to read.
 	 */
 	offset: filesize_t,
 ) -> (n: size_t, err: errno_t) {
-	err = wasi_fd_pread(fd, iovs, iovs_len, offset, &n)
+	err = wasi_fd_pread(fd, raw_data(iovs), len(iovs), offset, &n)
 	return
 }
 /**
@@ -1434,17 +1275,13 @@ fd_pwrite :: proc "c" (
 	/**
 	 * List of scatter/gather vectors from which to retrieve data.
 	 */
-	iovs: [^]ciovec_t,
-	/**
-	 * The length of the array pointed to by `iovs`.
-	 */
-	iovs_len: size_t,
+	iovs: []ciovec_t,
 	/**
 	 * The offset within the file at which to write.
 	 */
 	offset: filesize_t,
 ) -> (n: size_t, err: errno_t) {
-	err = wasi_fd_pwrite(fd, iovs, iovs_len, offset, &n)
+	err = wasi_fd_pwrite(fd, raw_data(iovs), len(iovs), offset, &n)
 	return
 }
 /**
@@ -1458,13 +1295,9 @@ fd_read :: proc "c" (
 	/**
 	 * List of scatter/gather vectors to which to store data.
 	 */
-	iovs: [^]iovec_t,
-	/**
-	 * The length of the array pointed to by `iovs`.
-	 */
-	iovs_len: size_t,
+	iovs: []iovec_t,
 ) -> (n: size_t, err: errno_t) {
-	err = wasi_fd_read(fd, iovs, iovs_len, &n)
+	err = wasi_fd_read(fd, raw_data(iovs), len(iovs), &n)
 	return
 }
 /**
@@ -1485,14 +1318,13 @@ fd_readdir :: proc "c" (
 	/**
 	 * The buffer where directory entries are stored
 	 */
-	buf: [^]u8,
-	buf_len: size_t,
+	buf: []byte,
 	/**
 	 * The location within the directory to start reading
 	 */
 	cookie: dircookie_t,
 ) -> (n: size_t, err: errno_t) {
-	err = wasi_fd_readdir(fd, buf, buf_len, cookie, &n)
+	err = wasi_fd_readdir(fd, raw_data(buf), len(buf), cookie, &n)
 	return
 }
 /**
@@ -1536,13 +1368,9 @@ fd_write :: proc "c" (
 	/**
 	 * List of scatter/gather vectors from which to retrieve data.
 	 */
-	iovs: [^]ciovec_t,
-	/**
-	 * The length of the array pointed to by `iovs`.
-	 */
-	iovs_len: size_t,
+	iovs: []ciovec_t,
 ) -> (n: size_t, err: errno_t) {
-	err = wasi_fd_write(fd, iovs, iovs_len, &n)
+	err = wasi_fd_write(fd, raw_data(iovs), len(iovs), &n)
 	return
 }
 /**
@@ -1661,17 +1489,13 @@ sock_recv :: proc "c" (
 	/**
 	 * List of scatter/gather vectors to which to store data.
 	 */
-	ri_data: [^]iovec_t,
-	/**
-	 * The length of the array pointed to by `ri_data`.
-	 */
-	ri_data_len: size_t,
+	ri_data: []iovec_t,
 	/**
 	 * Message flags.
 	 */
 	ri_flags: riflags_t,
 ) -> (n: size_t, flags: roflags_t, err: errno_t) {
-	err = wasi_sock_recv(fd, ri_data, ri_data_len, ri_flags, &n, &flags)
+	err = wasi_sock_recv(fd, raw_data(ri_data), len(ri_data), ri_flags, &n, &flags)
 	return
 }
 /**
@@ -1686,20 +1510,182 @@ sock_send :: proc "c" (
 	/**
 	 * List of scatter/gather vectors to which to retrieve data
 	 */
-	si_data: [^]ciovec_t,
-	/**
-	 * The length of the array pointed to by `si_data`.
-	 */
-	si_data_len: size_t,
+	si_data: []ciovec_t,
 	/**
 	 * Message flags.
 	 */
 	si_flags: siflags_t,
 ) -> (n: size_t, err: errno_t) {
-	err = wasi_sock_send(fd, si_data, si_data_len, si_flags, &n)
+	err = wasi_sock_send(fd, raw_data(si_data), len(si_data), si_flags, &n)
 	return
 }
 
+/**
+ * Return a description of the given preopened file descriptor.
+ */
+fd_prestat_dir_name :: proc(
+	fd: fd_t,
+	/**
+	 * A buffer into which to write the preopened directory name.
+	 */
+	path: string,
+) -> errno_t {
+	return wasm_fd_prestat_dir_name(fd, raw_data(path), len(path))
+}
+/**
+ * Create a directory.
+ * Note: This is similar to `mkdirat` in POSIX.
+ */
+path_create_directory :: proc(
+	fd: fd_t,
+	/**
+	 * The path at which to create the directory.
+	 */
+	path: string,
+) -> errno_t {
+	return wasm_path_create_directory(fd, raw_data(path), len(path))
+}
+/**
+ * Adjust the timestamps of a file or directory.
+ * Note: This is similar to `utimensat` in POSIX.
+ */
+path_filestat_set_times :: proc(
+	fd: fd_t,
+	/**
+	 * Flags determining the method of how the path is resolved.
+	 */
+	flags: lookupflags_t,
+	/**
+	 * The path of the file or directory to operate on.
+	 */
+	path: string,
+	/**
+	 * The desired values of the data access timestamp.
+	 */
+	atim: timestamp_t,
+	/**
+	 * The desired values of the data modification timestamp.
+	 */
+	mtim: timestamp_t,
+	/**
+	 * A bitmask indicating which timestamps to adjust.
+	 */
+	fst_flags: fstflags_t,
+) -> errno_t {
+	return wasm_path_filestat_set_times(fd, flags, raw_data(path), len(path), atim, mtim, fst_flags)
+}
+/**
+ * Remove a directory.
+ * Return `errno::notempty` if the directory is not empty.
+ * Note: This is similar to `unlinkat(fd, path, AT_REMOVEDIR)` in POSIX.
+ */
+path_remove_directory :: proc(
+	fd: fd_t,
+	/**
+	 * The path to a directory to remove.
+	 */
+	path: string,
+) -> errno_t {
+	return wasm_path_remove_directory(fd, raw_data(path), len(path))
+}
+/**
+ * Create a hard link.
+ * Note: This is similar to `linkat` in POSIX.
+ */
+path_link :: proc(
+	old_fd: fd_t,
+	/**
+	 * Flags determining the method of how the path is resolved.
+	 */
+	old_flags: lookupflags_t,
+	/**
+	 * The source path from which to link.
+	 */
+	old_path: string,
+	/**
+	 * The working directory at which the resolution of the new path starts.
+	 */
+	new_fd: fd_t,
+	/**
+	 * The destination path at which to create the hard link.
+	 */
+	new_path: string,
+) -> errno_t {
+	return wasm_path_link(old_fd, old_flags, raw_data(old_path), len(old_path), new_fd, raw_data(new_path), len(new_path))
+}
+
+/**
+ * Rename a file or directory.
+ * Note: This is similar to `renameat` in POSIX.
+ */
+path_rename :: proc(
+	fd: fd_t,
+	/**
+	 * The source path of the file or directory to rename.
+	 */
+	old_path: string,
+	/**
+	 * The working directory at which the resolution of the new path starts.
+	 */
+	new_fd: fd_t,
+	/**
+	 * The destination path to which to rename the file or directory.
+	 */
+	new_path: string,
+) -> errno_t {
+	return wasm_path_rename(fd, raw_data(old_path), len(old_path), new_fd, raw_data(new_path), len(new_path))
+}
+/**
+ * Create a symbolic link.
+ * Note: This is similar to `symlinkat` in POSIX.
+ */
+path_symlink :: proc(
+	/**
+	 * The contents of the symbolic link.
+	 */
+	old_path: string,
+	fd: fd_t,
+	/**
+	 * The destination path at which to create the symbolic link.
+	 */
+	new_path: string,
+) -> errno_t {
+	return wasm_path_symlink(raw_data(old_path), len(old_path), fd, raw_data(new_path), len(new_path))
+}
+/**
+ * Unlink a file.
+ * Return `errno::isdir` if the path refers to a directory.
+ * Note: This is similar to `unlinkat(fd, path, 0)` in POSIX.
+ */
+path_unlink_file :: proc(
+	fd: fd_t,
+	/**
+	 * The path to a file to unlink.
+	 */
+	path: string,
+) -> errno_t {
+	return wasm_path_unlink_file(fd, raw_data(path), len(path))
+}
+/**
+ * Write high-quality random data into a buffer.
+ * This function blocks when the implementation is unable to immediately
+ * provide sufficient high-quality random data.
+ * This function may execute slowly, so when large mounts of random data are
+ * required, it's advisable to use this function to seed a pseudo-random
+ * number generator, rather than to provide the random data directly.
+ */
+random_get :: proc(
+	/**
+	 * The buffer to fill with random data.
+	 */
+	buf: []u8,
+) -> errno_t {
+	return wasm_random_get(raw_data(buf), len(buf))
+}
+
+
+
+
 @(default_calling_convention="c")
 foreign wasi {
 	@(link_name="args_sizes_get")
@@ -1795,7 +1781,7 @@ foreign wasi {
 		/**
 		 * The path of the file or directory to inspect.
 		 */
-		path: [^]byte,
+		path: [^]u8,
 		path_len: size_t,
 		retptr0: ^filestat_t,
 	) -> errno_t ---
@@ -1803,7 +1789,7 @@ foreign wasi {
 	wasi_path_open :: proc(
 		fd: fd_t,
 		dirflags: lookupflags_t,
-		path: [^]byte,
+		path: [^]u8,
 		path_len: size_t,
 		oflags: oflags_t,
 		fs_rights_base: rights_t,
@@ -1814,7 +1800,7 @@ foreign wasi {
 	@(link_name="path_readlink")
 	wasi_path_readlink :: proc(
 		fd: fd_t,
-		path: [^]byte,
+		path: [^]u8,
 		path_len: size_t,
 		buf: [^]u8,
 		buf_len: size_t,
@@ -1844,4 +1830,70 @@ foreign wasi {
 		si_flags: siflags_t,
 		retptr0: ^size_t,
 	) -> errno_t ---
+	@(link_name="fd_prestat_dir_name")
+	wasm_fd_prestat_dir_name :: proc(
+		fd: fd_t,
+		path: [^]u8,
+		path_len: size_t,
+	) -> errno_t ---
+	@(link_name="path_create_directory")
+	wasm_path_create_directory :: proc(
+		fd: fd_t,
+		path: [^]u8,
+		path_len: size_t,
+	) -> errno_t ---
+	@(link_name="path_filestat_set_times")
+	wasm_path_filestat_set_times :: proc(
+		fd: fd_t,
+		flags: lookupflags_t,
+		path: [^]u8,
+		path_len: size_t,
+		atim: timestamp_t,
+		mtim: timestamp_t,
+		fst_flags: fstflags_t,
+	) -> errno_t ---
+	@(link_name="path_remove_directory")
+	wasm_path_remove_directory :: proc(
+		fd: fd_t,
+		path: [^]u8,
+		path_len: size_t,
+	) -> errno_t ---
+	@(link_name="path_link")
+	wasm_path_link :: proc(
+		old_fd: fd_t,
+		old_flags: lookupflags_t,
+		old_path: [^]u8,
+		old_path_len: size_t,
+		new_fd: fd_t,
+		new_path: [^]u8,
+		new_path_len: size_t,
+	) -> errno_t ---
+	@(link_name="path_rename")
+	wasm_path_rename :: proc(
+		fd: fd_t,
+		old_path: [^]u8,
+		old_path_len: size_t,
+		new_fd: fd_t,
+		new_path: [^]u8,
+		new_path_len: size_t,
+	) -> errno_t ---
+	@(link_name="path_symlink")
+	wasm_path_symlink :: proc(
+		old_path: [^]u8,
+		old_path_len: size_t,
+		fd: fd_t,
+		new_path: [^]u8,
+		new_path_len: size_t,
+	) -> errno_t ---
+	@(link_name="path_unlink_file")
+	wasm_path_unlink_file :: proc(
+		fd: fd_t,
+		path: [^]u8,
+		path_len: size_t,
+	) -> errno_t ---
+	@(link_name="random_get")
+	wasm_random_get :: proc(
+		buf: [^]u8,
+		buf_len: size_t,
+	) -> errno_t ---
 }