Checking in BeOS specific socket module.

1 files changed, 133 insertions, 0 deletions

diff --git a/Lib/plat-beos/socket.py b/Lib/plat-beos/socket.py
new file mode 100644
index 0000000..d3d26ed
--- /dev/null
+++ b/Lib/plat-beos/socket.py
@@ -0,0 +1,133 @@
+"Socket wrapper for BeOS, which does not support dup()."
+
+# (And hence, fromfd() and makefile() are unimplemented in C....)
+
+# XXX Living dangerously here -- close() is implemented by deleting a
+# reference.  Thus we rely on the real _socket module to close on
+# deallocation, and also hope that nobody keeps a reference to our _sock
+# member.
+
+
+
+try:
+    from _socket import *
+except ImportError:
+    from socket import *
+
+_realsocketcall = socket
+
+
+def socket(family, type, proto=0):
+    return _socketobject(_realsocketcall(family, type, proto))
+
+
+class _socketobject:
+
+    def __init__(self, sock):
+        self._sock = sock
+
+    def close(self):
+        self._sock = 0
+
+    def __del__(self):
+        self.close()
+
+    def accept(self):
+        sock, addr = self._sock.accept()
+        return _socketobject(sock), addr
+
+    def dup(self):
+        return _socketobject(self._sock)
+
+    def makefile(self, mode='r', bufsize=-1):
+        return _fileobject(self._sock, mode, bufsize)
+
+    _s = "def %s(self, *args): return apply(self._sock.%s, args)\n\n"
+    for _m in ('bind', 'connect', 'fileno', 'listen',
+               'getpeername', 'getsockname',
+               'getsockopt', 'setsockopt',
+               'recv', 'recvfrom', 'send', 'sendto',
+               'setblocking',
+               'shutdown'):
+        exec _s % (_m, _m)
+
+
+class _fileobject:
+
+    def __init__(self, sock, mode, bufsize):
+        self._sock = sock
+        self._mode = mode
+        if bufsize < 0:
+            bufsize = 512
+        self._rbufsize = max(1, bufsize)
+        self._wbufsize = bufsize
+        self._wbuf = self._rbuf = ""
+
+    def close(self):
+        try:
+            if self._sock:
+                self.flush()
+        finally:
+            self._sock = 0
+
+    def __del__(self):
+        self.close()
+
+    def flush(self):
+        if self._wbuf:
+            self._sock.send(self._wbuf)
+            self._wbuf = ""
+
+    def fileno(self):
+        return self._sock.fileno()
+
+    def write(self, data):
+        self._wbuf = self._wbuf + data
+        if self._wbufsize == 1:
+            if '\n' in data:
+                self.flush()
+        else:
+            if len(self._wbuf) >= self._wbufsize:
+                self.flush()
+
+    def writelines(self, list):
+        filter(self._sock.send, list)
+        self.flush()
+
+    def read(self, n=-1):
+        if n >= 0:
+            while len(self._rbuf) < n:
+                new = self._sock.recv(self._rbufsize)
+                if not new: break
+                self._rbuf = self._rbuf + new
+            data, self._rbuf = self._rbuf[:n], self._rbuf[n:]
+            return data
+        while 1:
+            new = self._sock.recv(self._rbufsize)
+            if not new: break
+            self._rbuf = self._rbuf + new
+        data, self._rbuf = self._rbuf, ""
+        return data
+
+    def readline(self):
+        import string
+        data = ""
+        i = string.find(self._rbuf, '\n')
+        while i < 0:
+            new = self._sock.recv(self._rbufsize)
+            if not new: break
+            i = string.find(new, '\n')
+            if i >= 0: i = i + len(self._rbuf)
+            self._rbuf = self._rbuf + new
+        if i < 0: i = len(self._rbuf)
+        else: i = i+1
+        data, self._rbuf = self._rbuf[:i], self._rbuf[i:]
+        return data
+
+    def readlines(self):
+        list = []
+        while 1:
+            line = self.readline()
+            if not line: break
+            list.append(line)
+        return list