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Update wasi to use string and slice types

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This commit is contained in:
gingerBill
2021-10-31 15:21:39 +00:00
parent 0c1675c8b0
commit c13c30b466
3 changed files with 303 additions and 204 deletions
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core/os/os_wasi.odin
+53 -6
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@@ -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))