module file
intrude import stream
-intrude import ropes
-import string_search
+intrude import text::ropes
+import text
import time
import gc
# If the buf_size is <= 0, its value will be 512 by default
#
# The mode is any of the buffer_mode enumeration in `Sys`:
- # - buffer_mode_full
- # - buffer_mode_line
- # - buffer_mode_none
+ #
+ # * `buffer_mode_full`
+ # * `buffer_mode_line`
+ # * `buffer_mode_none`
fun set_buffering_mode(buf_size, mode: Int) do
if buf_size <= 0 then buf_size = 512
if _file.set_buffering_type(buf_size, mode) != 0 then
return
end
end_reached = false
- _buffer_pos = 0
- _buffer.clear
+ buffer_reset
end
redef fun close
do
super
- _buffer.clear
+ buffer_reset
end_reached = true
end
redef fun fill_buffer
do
- var nb = _file.io_read(_buffer.items, _buffer.capacity)
+ var nb = _file.io_read(_buffer, _buffer_capacity)
if nb <= 0 then
end_reached = true
nb = 0
end
- _buffer.length = nb
+ _buffer_length = nb
_buffer_pos = 0
end
# End of file?
- redef var end_reached: Bool = false
+ redef var end_reached = false
# Open the file at `path` for reading.
#
super FileStream
super Writer
+ redef fun write_bytes(s) do
+ if last_error != null then return
+ if not _is_writable then
+ last_error = new IOError("cannot write to non-writable stream")
+ return
+ end
+ write_native(s.items, 0, s.length)
+ end
+
redef fun write(s)
do
if last_error != null then return
if not _is_writable then
+ last_error = new IOError("cannot write to non-writable stream")
+ return
+ end
+ s.write_native_to(self)
+ end
+
+ redef fun write_byte(value)
+ do
+ if last_error != null then return
+ if not _is_writable then
last_error = new IOError("Cannot write to non-writable stream")
return
end
- if s isa FlatText then
- write_native(s.to_cstring, s.length)
- else
- for i in s.substrings do write_native(i.to_cstring, i.length)
+ if _file.address_is_null then
+ last_error = new IOError("Writing on a null stream")
+ _is_writable = false
+ return
+ end
+
+ var err = _file.write_byte(value)
+ if err != 1 then
+ # Big problem
+ last_error = new IOError("Problem writing a byte: {err}")
end
end
redef var is_writable = false
# Write `len` bytes from `native`.
- private fun write_native(native: NativeString, len: Int)
+ private fun write_native(native: NativeString, from, len: Int)
do
if last_error != null then return
if not _is_writable then
_is_writable = false
return
end
- var err = _file.io_write(native, len)
+ var err = _file.io_write(native, from, len)
if err != len then
# Big problem
last_error = new IOError("Problem in writing : {err} {len} \n")
# Creates a file stream from a file descriptor `fd` using the file access `mode`.
#
# NOTE: The `mode` specified must be compatible with the one used in the file descriptor.
- private fun fd_to_stream(mode: NativeString): NativeFile is extern "file_int_fdtostream"
+ private fun fd_to_stream(mode: NativeString): NativeFile `{
+ return fdopen(self, mode);
+ `}
end
# Constant for read-only file streams
-private fun read_only: NativeString do return "r".to_cstring
+private fun read_only: NativeString do return once "r".to_cstring
# Constant for write-only file streams
#
# If a stream is opened on a file with this method,
# it will wipe the previous file if any.
# Else, it will create the file.
-private fun wipe_write: NativeString do return "w".to_cstring
+private fun wipe_write: NativeString do return once "w".to_cstring
###############################################################################
prepare_buffer(1)
end
- redef fun poll_in: Bool is extern "file_stdin_poll_in"
+ redef fun poll_in `{
+ struct pollfd fd = {0, POLLIN, 0};
+ int res = poll(&fd, 1, 0);
+ if (res == -1) {
+ perror("Error poll stdin");
+ exit(EXIT_FAILURE);
+ }
+ return res > 0;
+ `}
end
# Standard output stream.
end
end
-# Utility class to access file system services
+# Utility class to access file system services.
#
# Usually created with `Text::to_path`.
+#
+# `Path` objects does not necessarily represent existing files in a file system.
+# They are sate-less objects that efficiently represent path information.
+# They also provide an easy to use API on file-system services and are used to store their error status (see `last_error`)
class Path
private var path: String
# Path to this file
redef fun to_s do return path
- # Name of the file name at `to_s`
+ # Short name of the file at `to_s`
#
# ~~~
# var path = "/tmp/somefile".to_path
# assert path.filename == "somefile"
# ~~~
- var filename: String = path.basename("") is lazy
+ var filename: String = path.basename is lazy
+
+ # Last error produced by I/O operations.
+ #
+ # ~~~
+ # var path = "/does/not/exists".to_path
+ # assert path.last_error == null
+ # path.read_all
+ # assert path.last_error != null
+ # ~~~
+ #
+ # Since `Path` objects are stateless, `last_error` is reset on most operations and reflect its status.
+ var last_error: nullable IOError = null is writable
# Does the file at `path` exists?
+ #
+ # If the file does not exists, `last_error` is set to the information.
fun exists: Bool do return stat != null
# Information on the file at `self` following symbolic links
#
# Returns `null` if there is no file at `self`.
+ # `last_error` is updated to contains the error information on error, and null on success.
#
# assert "/etc/".to_path.stat.is_dir
# assert "/etc/issue".to_path.stat.is_file
# if stat != null then # Does `p` exist?
# print "It's size is {stat.size}"
# if stat.is_dir then print "It's a directory"
+ # else
+ # print p.last_error.to_s
# end
# ~~~
fun stat: nullable FileStat
do
var stat = path.to_cstring.file_stat
- if stat.address_is_null then return null
+ if stat.address_is_null then
+ last_error = new IOError("Cannot open `{path}`: {sys.errno.strerror}")
+ return null
+ end
+ last_error = null
return new FileStat(stat)
end
fun link_stat: nullable FileStat
do
var stat = path.to_cstring.file_lstat
- if stat.address_is_null then return null
+ if stat.address_is_null then
+ last_error = new IOError("Cannot open `{path}`: {sys.errno.strerror}")
+ return null
+ end
+ last_error = null
return new FileStat(stat)
end
- # Delete a file from the file system, return `true` on success
- fun delete: Bool do return path.to_cstring.file_delete
+ # Delete a file from the file system.
+ #
+ # `last_error` is updated to contains the error information on error, and null on success.
+ fun delete
+ do
+ var res = path.to_cstring.file_delete
+ if not res then
+ last_error = new IOError("Cannot delete `{path}`: {sys.errno.strerror}")
+ else
+ last_error = null
+ end
+ end
- # Copy content of file at `path` to `dest`
+ # Copy content of file at `path` to `dest`.
#
- # Require: `exists`
+ # `last_error` is updated to contains the error information on error, and null on success.
fun copy(dest: Path)
do
+ last_error = null
var input = open_ro
var output = dest.open_wo
input.close
output.close
+ last_error = input.last_error or else output.last_error
end
- # Open this file for reading
+ # Open this file for reading.
#
- # Require: `exists and not link_stat.is_dir`
+ # ~~~
+ # var file = "/etc/issue".to_path.open_ro
+ # print file.read_line
+ # file.close
+ # ~~~
+ #
+ # Note that it is the user's responsibility to close the stream.
+ # Therefore, for simple use case, look at `read_all` or `each_line`.
+ #
+ # ENSURE `last_error == result.last_error`
fun open_ro: FileReader
do
- # TODO manage streams error when they are merged
- return new FileReader.open(path)
+ var res = new FileReader.open(path)
+ last_error = res.last_error
+ return res
end
# Open this file for writing
#
- # Require: `not exists or not stat.is_dir`
+ # ~~~
+ # var file = "bla.log".to_path.open_wo
+ # file.write "Blabla\n"
+ # file.close
+ # ~~~
+ #
+ # Note that it is the user's responsibility to close the stream.
+ # Therefore, for simple use case, look at `Writable::write_to_file`.
+ #
+ # ENSURE `last_error == result.last_error`
fun open_wo: FileWriter
do
- # TODO manage streams error when they are merged
- return new FileWriter.open(path)
+ var res = new FileWriter.open(path)
+ last_error = res.last_error
+ return res
end
- # Read all the content of the file
+ # Read all the content of the file as a string.
#
# ~~~
# var content = "/etc/issue".to_path.read_all
# print content
# ~~~
#
+ # `last_error` is updated to contains the error information on error, and null on success.
+ # In case of error, the result might be empty or truncated.
+ #
# See `Reader::read_all` for details.
- fun read_all: String
+ fun read_all: String do return read_all_bytes.to_s
+
+ # Read all the content on the file as a raw sequence of bytes.
+ #
+ # ~~~
+ # var content = "/etc/issue".to_path.read_all_bytes
+ # print content.to_s
+ # ~~~
+ #
+ # `last_error` is updated to contains the error information on error, and null on success.
+ # In case of error, the result might be empty or truncated.
+ fun read_all_bytes: Bytes
do
var s = open_ro
- var res = s.read_all
+ var res = s.read_all_bytes
s.close
+ last_error = s.last_error
return res
end
# end
# ~~~
#
+ # `last_error` is updated to contains the error information on error, and null on success.
+ # In case of error, the result might be empty or truncated.
+ #
# See `Reader::read_lines` for details.
fun read_lines: Array[String]
do
var s = open_ro
var res = s.read_lines
s.close
+ last_error = s.last_error
return res
end
#
# Note: the stream is automatically closed at the end of the file (see `LineIterator::close_on_finish`)
#
+ # `last_error` is updated to contains the error information on error, and null on success.
+ #
# See `Reader::each_line` for details.
fun each_line: LineIterator
do
var s = open_ro
var res = s.each_line
res.close_on_finish = true
+ last_error = s.last_error
return res
end
- # Lists the name of the files contained within the directory at `path`
+ # Lists the files contained within the directory at `path`.
#
- # Require: `exists and is_dir`
+ # var files = "/etc".to_path.files
+ # assert files.has("/etc/issue".to_path)
+ #
+ # `last_error` is updated to contains the error information on error, and null on success.
+ # In case of error, the result might be empty or truncated.
+ #
+ # var path = "/etc/issue".to_path
+ # files = path.files
+ # assert files.is_empty
+ # assert path.last_error != null
fun files: Array[Path]
do
- var files = new Array[Path]
- for filename in path.files do
- files.add new Path(path / filename)
+ last_error = null
+ var res = new Array[Path]
+ var d = new NativeDir.opendir(path.to_cstring)
+ if d.address_is_null then
+ last_error = new IOError("Cannot list directory `{path}`: {sys.errno.strerror}")
+ return res
+ end
+
+ loop
+ var de = d.readdir
+ if de.address_is_null then
+ # readdir cannot fail, so null means end of list
+ break
+ end
+ var name = de.to_s_with_copy
+ if name == "." or name == ".." then continue
+ res.add new Path(path / name)
end
- return files
+ d.closedir
+
+ return res
end
- # Delete a directory and all of its content, return `true` on success
+ # Delete a directory and all of its content
#
# Does not go through symbolic links and may get stuck in a cycle if there
# is a cycle in the file system.
- fun rmdir: Bool
+ #
+ # `last_error` is updated to contains the error information on error, and null on success.
+ # The method does not stop on the first error and try to remove most file and directories.
+ #
+ # ~~~
+ # var path = "/does/not/exists/".to_path
+ # path.rmdir
+ # assert path.last_error != null
+ # ~~~
+ fun rmdir
do
- var ok = true
+ last_error = null
for file in self.files do
var stat = file.link_stat
+ if stat == null then
+ last_error = file.last_error
+ continue
+ end
if stat.is_dir then
- ok = file.rmdir and ok
+ # Recursively rmdir
+ file.rmdir
else
- ok = file.delete and ok
+ file.delete
end
+ if last_error == null then last_error = file.last_error
end
- # Delete the directory itself
- if ok then path.to_cstring.rmdir
-
- return ok
+ # Delete the directory itself if things are fine
+ if last_error == null then
+ if path.to_cstring.rmdir then
+ last_error = new IOError("Cannot remove `{self}`: {sys.errno.strerror}")
+ end
+ end
end
redef fun ==(other) do return other isa Path and path.simplify_path == other.path.simplify_path
redef class Text
# Access file system related services on the path at `self`
fun to_path: Path do return new Path(to_s)
+
+ private fun write_native_to(s: FileWriter)
+ do
+ for i in substrings do s.write_native(i.to_cstring, 0, i.length)
+ end
end
redef class String
# Copy content of file at `self` to `dest`
fun file_copy_to(dest: String) do to_path.copy(dest.to_path)
- # Remove the trailing extension `ext`.
+ # Remove the trailing `extension`.
+ #
+ # `extension` usually starts with a dot but could be anything.
+ #
+ # assert "file.txt".strip_extension(".txt") == "file"
+ # assert "file.txt".strip_extension("le.txt") == "fi"
+ # assert "file.txt".strip_extension("xt") == "file.t"
#
- # `ext` usually starts with a dot but could be anything.
+ # If `extension == null`, the rightmost extension is stripped, including the last dot.
#
- # assert "file.txt".strip_extension(".txt") == "file"
- # assert "file.txt".strip_extension("le.txt") == "fi"
- # assert "file.txt".strip_extension("xt") == "file.t"
+ # assert "file.txt".strip_extension == "file"
#
- # if `ext` is not present, `self` is returned unmodified.
+ # If `extension` is not present, `self` is returned unmodified.
#
# assert "file.txt".strip_extension(".tar.gz") == "file.txt"
- fun strip_extension(ext: String): String
+ fun strip_extension(extension: nullable String): String
do
- if has_suffix(ext) then
- return substring(0, length - ext.length)
+ if extension == null then
+ extension = file_extension
+ if extension == null then
+ return self
+ else extension = ".{extension}"
+ end
+
+ if has_suffix(extension) then
+ return substring(0, length - extension.length)
end
return self
end
- # Extract the basename of a path and remove the extension
+ # Extract the basename of a path and strip the `extension`
+ #
+ # The extension is stripped only if `extension != null`.
#
- # assert "/path/to/a_file.ext".basename(".ext") == "a_file"
- # assert "path/to/a_file.ext".basename(".ext") == "a_file"
- # assert "path/to".basename(".ext") == "to"
- # assert "path/to/".basename(".ext") == "to"
+ # assert "/path/to/a_file.ext".basename(".ext") == "a_file"
+ # assert "path/to/a_file.ext".basename(".ext") == "a_file"
+ # assert "path/to/a_file.ext".basename == "a_file.ext"
+ # assert "path/to".basename(".ext") == "to"
+ # assert "path/to/".basename(".ext") == "to"
+ # assert "path/to".basename == "to"
# assert "path".basename("") == "path"
# assert "/path".basename("") == "path"
# assert "/".basename("") == "/"
# assert "".basename("") == ""
- fun basename(ext: String): String
+ fun basename(extension: nullable String): String
do
var l = length - 1 # Index of the last char
while l > 0 and self.chars[l] == '/' do l -= 1 # remove all trailing `/`
if pos >= 0 then
n = substring(pos+1, l-pos)
end
- return n.strip_extension(ext)
+
+ if extension != null then
+ return n.strip_extension(extension)
+ else return n
end
# Extract the dirname of a path
return res
end
- # Simplify a file path by remove useless ".", removing "//", and resolving ".."
+ # Simplify a file path by remove useless `.`, removing `//`, and resolving `..`
#
- # * ".." are not resolved if they start the path
- # * starting "/" is not removed
- # * trailing "/" is removed
+ # * `..` are not resolved if they start the path
+ # * starting `.` is simplified unless the path is empty
+ # * starting `/` is not removed
+ # * trailing `/` is removed
#
# Note that the method only work on the string:
#
# assert "dir/..".simplify_path == "."
# assert "//absolute//path/".simplify_path == "/absolute/path"
# assert "//absolute//../".simplify_path == "/"
+ # assert "/".simplify_path == "/"
+ # assert "../".simplify_path == ".."
+ # assert "./".simplify_path == "."
+ # assert "././././././".simplify_path == "."
+ # assert "./../dir".simplify_path == "../dir"
+ # assert "./dir".simplify_path == "dir"
# ~~~
fun simplify_path: String
do
var a = self.split_with("/")
var a2 = new Array[String]
for x in a do
- if x == "." then continue
- if x == "" and not a2.is_empty then continue
+ if x == "." and not a2.is_empty then continue # skip `././`
+ if x == "" and not a2.is_empty then continue # skip `//`
if x == ".." and not a2.is_empty and a2.last != ".." then
- a2.pop
- continue
+ if a2.last == "." then # do not skip `./../`
+ a2.pop # reduce `./../` in `../`
+ else # reduce `dir/../` in `/`
+ a2.pop
+ continue
+ end
+ else if not a2.is_empty and a2.last == "." then
+ a2.pop # reduce `./dir` in `dir`
end
a2.push(x)
end
# In other cases, parts of the current directory may be exhibited:
#
# var p = "../foo/bar".relpath("baz")
- # var c = getcwd.basename("")
+ # var c = getcwd.basename
# assert p == "../../{c}/baz"
#
# For path resolution independent of the current directory (eg. for paths in URL),
end
# Create a directory (and all intermediate directories if needed)
- fun mkdir
+ #
+ # Return an error object in case of error.
+ #
+ # assert "/etc/".mkdir != null
+ fun mkdir: nullable Error
do
var dirs = self.split_with("/")
var path = new FlatBuffer
- if dirs.is_empty then return
+ if dirs.is_empty then return null
if dirs[0].is_empty then
# it was a starting /
path.add('/')
end
+ var error: nullable Error = null
for d in dirs do
if d.is_empty then continue
path.append(d)
path.add('/')
- path.to_s.to_cstring.file_mkdir
+ var res = path.to_s.to_cstring.file_mkdir
+ if not res and error == null then
+ error = new IOError("Cannot create directory `{path}`: {sys.errno.strerror}")
+ end
end
+ return error
end
# Delete a directory and all of its content, return `true` on success
#
# Does not go through symbolic links and may get stuck in a cycle if there
# is a cycle in the filesystem.
- fun rmdir: Bool do return to_path.rmdir
+ #
+ # Return an error object in case of error.
+ #
+ # assert "/fail/does not/exist".rmdir != null
+ fun rmdir: nullable Error
+ do
+ var p = to_path
+ p.rmdir
+ return p.last_error
+ end
# Change the current working directory
#
# "..".chdir
# assert getcwd == "/"
#
- # TODO: errno
- fun chdir do to_cstring.file_chdir
+ # Return an error object in case of error.
+ #
+ # assert "/etc".chdir == null
+ # assert "/fail/does no/exist".chdir != null
+ # assert getcwd == "/etc" # unchanger
+ fun chdir: nullable Error
+ do
+ var res = to_cstring.file_chdir
+ if res then return null
+ var error = new IOError("Cannot change directory to `{self}`: {sys.errno.strerror}")
+ return error
+ end
# Return right-most extension (without the dot)
#
end
end
- # returns files contained within the directory represented by self
- fun files: Array[String] is extern import Array[String], Array[String].add, NativeString.to_s, String.to_cstring `{
- char *dir_path;
- DIR *dir;
+ # Returns entries contained within the directory represented by self.
+ #
+ # var files = "/etc".files
+ # assert files.has("issue")
+ #
+ # Returns an empty array in case of error
+ #
+ # files = "/etc/issue".files
+ # assert files.is_empty
+ #
+ # TODO find a better way to handle errors and to give them back to the user.
+ fun files: Array[String]
+ do
+ var res = new Array[String]
+ var d = new NativeDir.opendir(to_cstring)
+ if d.address_is_null then return res
+
+ loop
+ var de = d.readdir
+ if de.address_is_null then break
+ var name = de.to_s_with_copy
+ if name == "." or name == ".." then continue
+ res.add name
+ end
+ d.closedir
- dir_path = String_to_cstring( recv );
- if ((dir = opendir(dir_path)) == NULL)
- {
- perror( dir_path );
- exit( 1 );
- }
- else
- {
- Array_of_String results;
- String file_name;
- struct dirent *de;
+ return res
+ end
+end
- results = new_Array_of_String();
+redef class FlatString
+ redef fun write_native_to(s)
+ do
+ s.write_native(items, index_from, length)
+ end
+end
- while ( ( de = readdir( dir ) ) != NULL )
- if ( strcmp( de->d_name, ".." ) != 0 &&
- strcmp( de->d_name, "." ) != 0 )
- {
- file_name = NativeString_to_s( strdup( de->d_name ) );
- Array_of_String_add( results, file_name );
- }
+redef class NativeString
+ private fun file_exists: Bool `{
+ FILE *hdl = fopen(self,"r");
+ if(hdl != NULL){
+ fclose(hdl);
+ }
+ return hdl != NULL;
+ `}
- closedir( dir );
- return results;
+ private fun file_stat: NativeFileStat `{
+ struct stat buff;
+ if(stat(self, &buff) != -1) {
+ struct stat* stat_element;
+ stat_element = malloc(sizeof(struct stat));
+ return memcpy(stat_element, &buff, sizeof(struct stat));
}
+ return 0;
`}
-end
-redef class NativeString
- private fun file_exists: Bool is extern "string_NativeString_NativeString_file_exists_0"
- private fun file_stat: NativeFileStat is extern "string_NativeString_NativeString_file_stat_0"
private fun file_lstat: NativeFileStat `{
struct stat* stat_element;
int res;
stat_element = malloc(sizeof(struct stat));
- res = lstat(recv, stat_element);
+ res = lstat(self, stat_element);
if (res == -1) return NULL;
return stat_element;
`}
- private fun file_mkdir: Bool is extern "string_NativeString_NativeString_file_mkdir_0"
- private fun rmdir: Bool `{ return rmdir(recv); `}
- private fun file_delete: Bool is extern "string_NativeString_NativeString_file_delete_0"
- private fun file_chdir is extern "string_NativeString_NativeString_file_chdir_0"
- private fun file_realpath: NativeString is extern "file_NativeString_realpath"
+
+ private fun file_mkdir: Bool `{ return !mkdir(self, 0777); `}
+
+ private fun rmdir: Bool `{ return !rmdir(self); `}
+
+ private fun file_delete: Bool `{
+ return remove(self) == 0;
+ `}
+
+ private fun file_chdir: Bool `{ return !chdir(self); `}
+
+ private fun file_realpath: NativeString `{ return realpath(self, NULL); `}
end
# This class is system dependent ... must reify the vfs
private extern class NativeFileStat `{ struct stat * `}
+
# Returns the permission bits of file
- fun mode: Int is extern "file_FileStat_FileStat_mode_0"
+ fun mode: Int `{ return self->st_mode; `}
+
# Returns the last access time
- fun atime: Int is extern "file_FileStat_FileStat_atime_0"
+ fun atime: Int `{ return self->st_atime; `}
+
# Returns the last status change time
- fun ctime: Int is extern "file_FileStat_FileStat_ctime_0"
+ fun ctime: Int `{ return self->st_ctime; `}
+
# Returns the last modification time
- fun mtime: Int is extern "file_FileStat_FileStat_mtime_0"
+ fun mtime: Int `{ return self->st_mtime; `}
+
# Returns the size
- fun size: Int is extern "file_FileStat_FileStat_size_0"
+ fun size: Int `{ return self->st_size; `}
# Returns true if it is a regular file (not a device file, pipe, sockect, ...)
- fun is_reg: Bool `{ return S_ISREG(recv->st_mode); `}
+ fun is_reg: Bool `{ return S_ISREG(self->st_mode); `}
+
# Returns true if it is a directory
- fun is_dir: Bool `{ return S_ISDIR(recv->st_mode); `}
+ fun is_dir: Bool `{ return S_ISDIR(self->st_mode); `}
+
# Returns true if it is a character device
- fun is_chr: Bool `{ return S_ISCHR(recv->st_mode); `}
+ fun is_chr: Bool `{ return S_ISCHR(self->st_mode); `}
+
# Returns true if it is a block device
- fun is_blk: Bool `{ return S_ISBLK(recv->st_mode); `}
+ fun is_blk: Bool `{ return S_ISBLK(self->st_mode); `}
+
# Returns true if the type is fifo
- fun is_fifo: Bool `{ return S_ISFIFO(recv->st_mode); `}
+ fun is_fifo: Bool `{ return S_ISFIFO(self->st_mode); `}
+
# Returns true if the type is a link
- fun is_lnk: Bool `{ return S_ISLNK(recv->st_mode); `}
+ fun is_lnk: Bool `{ return S_ISLNK(self->st_mode); `}
+
# Returns true if the type is a socket
- fun is_sock: Bool `{ return S_ISSOCK(recv->st_mode); `}
+ fun is_sock: Bool `{ return S_ISSOCK(self->st_mode); `}
end
# Instance of this class are standard FILE * pointers
private extern class NativeFile `{ FILE* `}
- fun io_read(buf: NativeString, len: Int): Int is extern "file_NativeFile_NativeFile_io_read_2"
- fun io_write(buf: NativeString, len: Int): Int is extern "file_NativeFile_NativeFile_io_write_2"
- fun io_close: Int is extern "file_NativeFile_NativeFile_io_close_0"
- fun file_stat: NativeFileStat is extern "file_NativeFile_NativeFile_file_stat_0"
- fun fileno: Int `{ return fileno(recv); `}
+ fun io_read(buf: NativeString, len: Int): Int `{
+ return fread(buf, 1, len, self);
+ `}
+
+ fun io_write(buf: NativeString, from, len: Int): Int `{
+ return fwrite(buf+from, 1, len, self);
+ `}
+
+ fun write_byte(value: Byte): Int `{
+ unsigned char b = (unsigned char)value;
+ return fwrite(&b, 1, 1, self);
+ `}
+
+ fun io_close: Int `{ return fclose(self); `}
+
+ fun file_stat: NativeFileStat `{
+ struct stat buff;
+ if(fstat(fileno(self), &buff) != -1) {
+ struct stat* stat_element;
+ stat_element = malloc(sizeof(struct stat));
+ return memcpy(stat_element, &buff, sizeof(struct stat));
+ }
+ return 0;
+ `}
+
+ fun fileno: Int `{ return fileno(self); `}
+
# Flushes the buffer, forcing the write operation
- fun flush: Int is extern "fflush"
+ fun flush: Int `{ return fflush(self); `}
+
# Used to specify how the buffering will be handled for the current stream.
- fun set_buffering_type(buf_length: Int, mode: Int): Int is extern "file_NativeFile_NativeFile_set_buffering_type_0"
+ fun set_buffering_type(buf_length: Int, mode: Int): Int `{
+ return setvbuf(self, NULL, mode, buf_length);
+ `}
+
+ new io_open_read(path: NativeString) `{ return fopen(path, "r"); `}
- new io_open_read(path: NativeString) is extern "file_NativeFileCapable_NativeFileCapable_io_open_read_1"
- new io_open_write(path: NativeString) is extern "file_NativeFileCapable_NativeFileCapable_io_open_write_1"
- new native_stdin is extern "file_NativeFileCapable_NativeFileCapable_native_stdin_0"
- new native_stdout is extern "file_NativeFileCapable_NativeFileCapable_native_stdout_0"
- new native_stderr is extern "file_NativeFileCapable_NativeFileCapable_native_stderr_0"
+ new io_open_write(path: NativeString) `{ return fopen(path, "w"); `}
+
+ new native_stdin `{ return stdin; `}
+
+ new native_stdout `{ return stdout; `}
+
+ new native_stderr `{ return stderr; `}
+end
+
+# Standard `DIR*` pointer
+private extern class NativeDir `{ DIR* `}
+
+ # Open a directory
+ new opendir(path: NativeString) `{ return opendir(path); `}
+
+ # Close a directory
+ fun closedir `{ closedir(self); `}
+
+ # Read the next directory entry
+ fun readdir: NativeString `{
+ struct dirent *de;
+ de = readdir(self);
+ if (!de) return NULL;
+ return de->d_name;
+ `}
end
redef class Sys
var stderr: Writer = new Stderr is protected writable, lazy
# Enumeration for buffer mode full (flushes when buffer is full)
- fun buffer_mode_full: Int is extern "file_Sys_Sys_buffer_mode_full_0"
+ fun buffer_mode_full: Int `{ return _IOFBF; `}
+
# Enumeration for buffer mode line (flushes when a `\n` is encountered)
- fun buffer_mode_line: Int is extern "file_Sys_Sys_buffer_mode_line_0"
+ fun buffer_mode_line: Int `{ return _IONBF; `}
+
# Enumeration for buffer mode none (flushes ASAP when something is written)
- fun buffer_mode_none: Int is extern "file_Sys_Sys_buffer_mode_none_0"
+ fun buffer_mode_none: Int `{ return _IOLBF; `}
# returns first available stream to read or write to
# return null on interruption (possibly a signal)
end
end
- private fun intern_poll(in_fds: Array[Int], out_fds: Array[Int]) : nullable Int is extern import Array[Int].length, Array[Int].[], Int.as(nullable Int) `{
+ private fun intern_poll(in_fds: Array[Int], out_fds: Array[Int]): nullable Int
+ import Array[Int].length, Array[Int].[], Int.as(nullable Int) `{
int in_len, out_len, total_len;
struct pollfd *c_fds;
- sigset_t sigmask;
int i;
int first_polled_fd = -1;
int result;
end
# Print `objects` on the standard output (`stdout`).
-protected fun printn(objects: Object...)
+fun printn(objects: Object...)
do
- sys.stdout.write(objects.to_s)
+ sys.stdout.write(objects.plain_to_s)
end
# Print an `object` on the standard output (`stdout`) and add a newline.
-protected fun print(object: Object)
+fun print(object: Object)
do
sys.stdout.write(object.to_s)
sys.stdout.write("\n")
end
+# Print `object` on the error output (`stderr` or a log system)
+fun print_error(object: Object)
+do
+ sys.stderr.write object.to_s
+ sys.stderr.write "\n"
+end
+
# Read a character from the standard input (`stdin`).
-protected fun getc: Char
+fun getc: Char
do
- return sys.stdin.read_char.ascii
+ var c = sys.stdin.read_char
+ if c == null then return '\1'
+ return c
end
# Read a line from the standard input (`stdin`).
-protected fun gets: String
+fun gets: String
do
return sys.stdin.read_line
end
# Return the working (current) directory
-protected fun getcwd: String do return file_getcwd.to_s
-private fun file_getcwd: NativeString is extern "string_NativeString_NativeString_file_getcwd_0"
+fun getcwd: String do return native_getcwd.to_s
+
+private fun native_getcwd: NativeString `{ return getcwd(NULL, 0); `}