Added lockf() call
diff --git a/Modules/fcntlmodule.c b/Modules/fcntlmodule.c
index c547ed0..fd7b30c 100644
--- a/Modules/fcntlmodule.c
+++ b/Modules/fcntlmodule.c
@@ -181,7 +181,51 @@
return None;
}
+/* lockf(fd, operation) */
+static object *
+fcntl_lockf(self, args)
+ object *self; /* Not used */
+ object *args;
+{
+ int fd, code, len = 0, start = 0, whence = 0, ret;
+ FILE *f;
+ if (!PyArg_ParseTuple(args, "ii|iii", &fd, &code, &len,
+ &start, &whence))
+ return NULL;
+
+ BGN_SAVE
+#ifndef LOCK_SH
+#define LOCK_SH 1 /* shared lock */
+#define LOCK_EX 2 /* exclusive lock */
+#define LOCK_NB 4 /* don't block when locking */
+#define LOCK_UN 8 /* unlock */
+#endif
+ {
+ struct flock l;
+ if (code == LOCK_UN)
+ l.l_type = F_UNLCK;
+ else if (code & LOCK_SH)
+ l.l_type = F_RDLCK;
+ else if (code & LOCK_EX)
+ l.l_type = F_WRLCK;
+ else {
+ err_setstr(ValueError, "unrecognized flock argument");
+ return NULL;
+ }
+ l.l_len = len;
+ l.l_start = start;
+ l.l_whence = whence;
+ ret = fcntl(fd, (code & LOCK_NB) ? F_SETLK : F_SETLKW, &l);
+ }
+ END_SAVE
+ if (ret < 0) {
+ err_errno(IOError);
+ return NULL;
+ }
+ INCREF(None);
+ return None;
+}
/* List of functions */
@@ -189,6 +233,7 @@
{"fcntl", fcntl_fcntl},
{"ioctl", fcntl_ioctl},
{"flock", fcntl_flock},
+ {"lockf", fcntl_lockf, 1},
{NULL, NULL} /* sentinel */
};