mirror of
https://gitlab.com/libvirt/libvirt.git
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qemu_api: Update Py binding generator to generate files for QEMU APIs
It will generate: libvirt-qemu.py libvirt-qemu.h libvirt-qemu.c libvirt-qemu-export.c
This commit is contained in:
Osier Yang
parent
2a0d75e5ee
commit
9eba0d2591
@ -4,7 +4,9 @@
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#
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functions = {}
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qemu_functions = {}
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enums = {} # { enumType: { enumConstant: enumValue } }
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qemu_enums = {} # { enumType: { enumConstant: enumValue } }
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import os
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import sys
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@ -82,10 +84,13 @@ class docParser(xml.sax.handler.ContentHandler):
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self.function_descr = None
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self.function_return = None
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self.function_file = None
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self.function_module= None
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if attrs.has_key('name'):
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self.function = attrs['name']
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if attrs.has_key('file'):
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self.function_file = attrs['file']
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if attrs.has_key('module'):
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self.function_module= attrs['module']
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elif tag == 'cond':
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self._data = []
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elif tag == 'info':
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@ -115,16 +120,36 @@ class docParser(xml.sax.handler.ContentHandler):
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if attrs.has_key('field'):
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self.function_return_field = attrs['field']
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elif tag == 'enum':
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enum(attrs['type'],attrs['name'],attrs['value'])
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if attrs['file'] == "libvirt":
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enum(attrs['type'],attrs['name'],attrs['value'])
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elif attrs['file'] == "libvirt-qemu":
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qemu_enum(attrs['type'],attrs['name'],attrs['value'])
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def end(self, tag):
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if debug:
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print "end %s" % tag
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if tag == 'function':
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if self.function != None:
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function(self.function, self.function_descr,
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self.function_return, self.function_args,
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self.function_file, self.function_cond)
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if self.function_module == "libvirt":
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function(self.function, self.function_descr,
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self.function_return, self.function_args,
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self.function_file, self.function_module,
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self.function_cond)
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elif self.function_module == "libvirt-qemu":
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qemu_function(self.function, self.function_descr,
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self.function_return, self.function_args,
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self.function_file, self.function_module,
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self.function_cond)
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elif self.function_file == "python":
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function(self.function, self.function_descr,
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self.function_return, self.function_args,
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self.function_file, self.function_module,
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self.function_cond)
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elif self.function_file == "python-qemu":
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qemu_function(self.function, self.function_descr,
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self.function_return, self.function_args,
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self.function_file, self.function_module,
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self.function_cond)
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self.in_function = 0
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elif tag == 'arg':
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if self.in_function == 1:
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@ -150,8 +175,11 @@ class docParser(xml.sax.handler.ContentHandler):
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self.function_cond = str
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def function(name, desc, ret, args, file, cond):
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functions[name] = (desc, ret, args, file, cond)
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def function(name, desc, ret, args, file, module, cond):
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functions[name] = (desc, ret, args, file, module, cond)
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def qemu_function(name, desc, ret, args, file, module, cond):
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qemu_functions[name] = (desc, ret, args, file, module, cond)
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def enum(type, name, value):
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if not enums.has_key(type):
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@ -176,6 +204,12 @@ def enum(type, name, value):
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value = 2
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enums[type][name] = value
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def qemu_enum(type, name, value):
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if not qemu_enums.has_key(type):
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qemu_enums[type] = {}
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qemu_enums[type][name] = value
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#######################################################################
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#
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# Some filtering rukes to drop functions/types which should not
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@ -184,9 +218,11 @@ def enum(type, name, value):
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#######################################################################
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functions_failed = []
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qemu_functions_failed = []
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functions_skipped = [
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"virConnectListDomains",
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]
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qemu_functions_skipped = []
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skipped_modules = {
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}
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@ -376,6 +412,10 @@ skip_impl = (
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'virDomainBlockStatsFlags',
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)
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qemu_skip_impl = (
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'virDomainQemuMonitorCommand',
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)
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# These are functions which the generator skips completly - no python
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# or C code is generated. Generally should not be used for any more
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@ -428,37 +468,54 @@ skip_function = (
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"virStorageVolGetConnect",
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)
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qemu_skip_function = (
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#"virDomainQemuAttach",
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)
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# Generate C code, but skip python impl
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function_skip_python_impl = (
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"virStreamFree", # Needed in custom virStream __del__, but free shouldn't
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# be exposed in bindings
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)
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qemu_function_skip_python_impl = ()
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function_skip_index_one = (
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"virDomainRevertToSnapshot",
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)
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def print_function_wrapper(name, output, export, include):
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def print_function_wrapper(module, name, output, export, include):
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global py_types
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global unknown_types
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global functions
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global qemu_functions
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global skipped_modules
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global function_skip_python_impl
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try:
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(desc, ret, args, file, cond) = functions[name]
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if module == "libvirt":
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(desc, ret, args, file, mod, cond) = functions[name]
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if module == "libvirt-qemu":
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(desc, ret, args, file, mod, cond) = qemu_functions[name]
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except:
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print "failed to get function %s infos"
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print "failed to get function %s infos" % name
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return
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if skipped_modules.has_key(file):
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if skipped_modules.has_key(module):
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return 0
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if name in skip_function:
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return 0
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if name in skip_impl:
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# Don't delete the function entry in the caller.
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return 1
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if module == "libvirt":
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if name in skip_function:
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return 0
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if name in skip_impl:
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# Don't delete the function entry in the caller.
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return 1
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elif module == "libvirt-qemu":
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if name in qemu_skip_function:
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return 0
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if name in qemu_skip_impl:
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# Don't delete the function entry in the caller.
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return 1
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c_call = "";
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format=""
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@ -549,10 +606,14 @@ def print_function_wrapper(name, output, export, include):
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output.write("#if %s\n" % cond)
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include.write("PyObject * ")
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include.write("libvirt_%s(PyObject *self, PyObject *args);\n" % (name));
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export.write(" { (char *)\"%s\", libvirt_%s, METH_VARARGS, NULL },\n" %
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(name, name))
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if module == "libvirt":
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include.write("libvirt_%s(PyObject *self, PyObject *args);\n" % (name));
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export.write(" { (char *)\"%s\", libvirt_%s, METH_VARARGS, NULL },\n" %
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(name, name))
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elif module == "libvirt-qemu":
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include.write("libvirt_qemu_%s(PyObject *self, PyObject *args);\n" % (name));
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export.write(" { (char *)\"%s\", libvirt_qemu_%s, METH_VARARGS, NULL },\n" %
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(name, name))
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if file == "python":
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# Those have been manually generated
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@ -570,7 +631,10 @@ def print_function_wrapper(name, output, export, include):
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return 1
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output.write("PyObject *\n")
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output.write("libvirt_%s(PyObject *self ATTRIBUTE_UNUSED," % (name))
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if module == "libvirt":
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output.write("libvirt_%s(PyObject *self ATTRIBUTE_UNUSED," % (name))
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elif module == "libvirt-qemu":
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output.write("libvirt_qemu_%s(PyObject *self ATTRIBUTE_UNUSED," % (name))
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output.write(" PyObject *args")
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if format == "":
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output.write(" ATTRIBUTE_UNUSED")
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@ -586,11 +650,11 @@ def print_function_wrapper(name, output, export, include):
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(format, format_args))
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output.write(" return(NULL);\n")
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if c_convert != "":
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output.write(c_convert)
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output.write(c_convert + "\n")
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output.write("LIBVIRT_BEGIN_ALLOW_THREADS;\n");
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output.write(" LIBVIRT_BEGIN_ALLOW_THREADS;");
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output.write(c_call);
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output.write("LIBVIRT_END_ALLOW_THREADS;\n");
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output.write(" LIBVIRT_END_ALLOW_THREADS;\n");
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output.write(ret_convert)
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output.write("}\n\n")
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if cond != None and cond != "":
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@ -598,24 +662,43 @@ def print_function_wrapper(name, output, export, include):
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export.write("#endif /* %s */\n" % cond)
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output.write("#endif /* %s */\n" % cond)
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if name in function_skip_python_impl:
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return 0
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if module == "libvirt":
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if name in function_skip_python_impl:
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return 0
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elif module == "libvirt-qemu":
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if name in qemu_function_skip_python_impl:
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return 0
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return 1
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def buildStubs():
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def buildStubs(module):
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global py_types
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global py_return_types
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global unknown_types
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if module not in ["libvirt", "libvirt-qemu"]:
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print "ERROR: Unknown module type: %s" % module
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return None
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if module == "libvirt":
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funcs = functions
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funcs_failed = functions_failed
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funcs_skipped = functions_skipped
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elif module == "libvirt-qemu":
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funcs = qemu_functions
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funcs_failed = qemu_functions_failed
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funcs_skipped = functions_skipped
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api_xml = "%s-api.xml" % module
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try:
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f = open(os.path.join(srcPref,"libvirt-api.xml"))
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f = open(os.path.join(srcPref,api_xml))
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data = f.read()
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(parser, target) = getparser()
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parser.feed(data)
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parser.close()
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except IOError, msg:
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try:
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f = open(os.path.join(srcPref,"..","docs","libvirt-api.xml"))
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f = open(os.path.join(srcPref,"..","docs",api_xml))
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data = f.read()
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(parser, target) = getparser()
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parser.feed(data)
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@ -624,13 +707,15 @@ def buildStubs():
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print file, ":", msg
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sys.exit(1)
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n = len(functions.keys())
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n = len(funcs.keys())
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if not quiet:
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print "Found %d functions in libvirt-api.xml" % (n)
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print "Found %d functions in %s" % ((n), api_xml)
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override_api_xml = "%s-override-api.xml" % module
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py_types['pythonObject'] = ('O', "pythonObject", "pythonObject", "pythonObject")
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try:
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f = open(os.path.join(srcPref,"libvirt-override-api.xml"))
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f = open(os.path.join(srcPref, override_api_xml))
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data = f.read()
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(parser, target) = getparser()
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parser.feed(data)
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@ -639,32 +724,41 @@ def buildStubs():
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print file, ":", msg
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if not quiet:
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print "Found %d functions in libvirt-override-api.xml" % (
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len(functions.keys()) - n)
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# XXX: This is not right, same function already in @functions
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# will be overwritten.
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print "Found %d functions in %s" % ((len(funcs.keys()) - n), override_api_xml)
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nb_wrap = 0
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failed = 0
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skipped = 0
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include = open("libvirt.h", "w")
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header_file = "%s.h" % module
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export_file = "%s-export.c" % module
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wrapper_file = "%s.c" % module
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include = open(header_file, "w")
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include.write("/* Generated */\n\n")
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export = open("libvirt-export.c", "w")
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export = open(export_file, "w")
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export.write("/* Generated */\n\n")
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wrapper = open("libvirt.c", "w")
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wrapper = open(wrapper_file, "w")
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wrapper.write("/* Generated */\n\n")
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wrapper.write("#include <Python.h>\n")
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wrapper.write("#include <libvirt/libvirt.h>\n")
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wrapper.write("#include <libvirt/" + module + ".h>\n")
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wrapper.write("#include \"typewrappers.h\"\n")
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wrapper.write("#include \"libvirt.h\"\n\n")
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for function in functions.keys():
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ret = print_function_wrapper(function, wrapper, export, include)
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wrapper.write("#include \"" + module + ".h\"\n\n")
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for function in funcs.keys():
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# Skip the functions which are not for the module
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ret = print_function_wrapper(module, function, wrapper, export, include)
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if ret < 0:
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failed = failed + 1
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functions_failed.append(function)
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del functions[function]
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funcs_failed.append(function)
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del funcs[function]
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if ret == 0:
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skipped = skipped + 1
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functions_skipped.append(function)
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del functions[function]
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funcs_skipped.append(function)
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del funcs[function]
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if ret == 1:
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nb_wrap = nb_wrap + 1
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include.close()
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@ -679,7 +773,7 @@ def buildStubs():
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for type in unknown_types.keys():
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print "%s:%d " % (type, len(unknown_types[type])),
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for f in functions_failed:
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for f in funcs_failed:
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print "ERROR: failed %s" % f
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if failed > 0:
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@ -734,6 +828,7 @@ primary_classes = ["virDomain", "virNetwork", "virInterface",
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classes_ancestor = {
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}
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classes_destructors = {
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"virDomain": "virDomainFree",
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"virNetwork": "virNetworkFree",
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@ -956,8 +1051,8 @@ def nameFixup(name, classe, type, file):
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def functionCompare(info1, info2):
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(index1, func1, name1, ret1, args1, file1) = info1
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(index2, func2, name2, ret2, args2, file2) = info2
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(index1, func1, name1, ret1, args1, file1, mod1) = info1
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(index2, func2, name2, ret2, args2, file2, mod2) = info2
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if file1 == file2:
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if func1 < func2:
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return -1
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@ -973,10 +1068,14 @@ def functionCompare(info1, info2):
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return 1
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return 0
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def writeDoc(name, args, indent, output):
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if functions[name][0] is None or functions[name][0] == "":
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def writeDoc(module, name, args, indent, output):
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if module == "libvirt":
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funcs = functions
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elif module == "libvirt-qemu":
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funcs = qemu_functions
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if funcs[name][0] is None or funcs[name][0] == "":
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return
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val = functions[name][0]
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val = funcs[name][0]
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val = string.replace(val, "NULL", "None");
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output.write(indent)
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output.write('"""')
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@ -990,7 +1089,7 @@ def writeDoc(name, args, indent, output):
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output.write(val)
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output.write(' """\n')
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def buildWrappers():
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def buildWrappers(module):
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global ctypes
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global py_types
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global py_return_types
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@ -1005,10 +1104,13 @@ def buildWrappers():
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global classes_ancestor
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global converter_type
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global primary_classes
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global classes_ancestor
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global classes_destructors
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global functions_noexcept
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if not module == "libvirt":
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print "ERROR: Unknown module type: %s" % module
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return None
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for type in classes_type.keys():
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function_classes[classes_type[type][2]] = []
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@ -1041,30 +1143,35 @@ def buildWrappers():
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for name in functions.keys():
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found = 0;
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(desc, ret, args, file, cond) = functions[name]
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(desc, ret, args, file, mod, cond) = functions[name]
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for type in ctypes:
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classe = classes_type[type][2]
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if name[0:3] == "vir" and len(args) >= 1 and args[0][1] == type:
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found = 1
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func = nameFixup(name, classe, type, file)
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info = (0, func, name, ret, args, file)
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info = (0, func, name, ret, args, file, mod)
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function_classes[classe].append(info)
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elif name[0:3] == "vir" and len(args) >= 2 and args[1][1] == type \
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and file != "python_accessor" and not name in function_skip_index_one:
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found = 1
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func = nameFixup(name, classe, type, file)
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info = (1, func, name, ret, args, file)
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info = (1, func, name, ret, args, file, mod)
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function_classes[classe].append(info)
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if found == 1:
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continue
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func = nameFixup(name, "None", file, file)
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info = (0, func, name, ret, args, file)
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info = (0, func, name, ret, args, file, mod)
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function_classes['None'].append(info)
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classes = open("libvirt.py", "w")
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classes_file = "%s.py" % module
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extra_file = "%s-override.py" % module
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extra = None
|
||||
|
||||
extra = open(os.path.join(srcPref,"libvirt-override.py"), "r")
|
||||
classes = open(classes_file, "w")
|
||||
|
||||
if os.path.exists(extra_file):
|
||||
extra = open(os.path.join(srcPref,extra_file), "r")
|
||||
classes.write("#! " + python + " -i\n")
|
||||
classes.write("#\n")
|
||||
classes.write("# WARNING WARNING WARNING WARNING\n")
|
||||
@ -1072,26 +1179,28 @@ def buildWrappers():
|
||||
classes.write("# This file is automatically written by generator.py. Any changes\n")
|
||||
classes.write("# made here will be lost.\n")
|
||||
classes.write("#\n")
|
||||
classes.write("# To change the manually written methods edit libvirt-override.py\n")
|
||||
classes.write("# To change the manually written methods edit " + module + "-override.py\n")
|
||||
classes.write("# To change the automatically written methods edit generator.py\n")
|
||||
classes.write("#\n")
|
||||
classes.write("# WARNING WARNING WARNING WARNING\n")
|
||||
classes.write("#\n")
|
||||
classes.writelines(extra.readlines())
|
||||
if extra != None:
|
||||
classes.writelines(extra.readlines())
|
||||
classes.write("#\n")
|
||||
classes.write("# WARNING WARNING WARNING WARNING\n")
|
||||
classes.write("#\n")
|
||||
classes.write("# Automatically written part of python bindings for libvirt\n")
|
||||
classes.write("#\n")
|
||||
classes.write("# WARNING WARNING WARNING WARNING\n")
|
||||
extra.close()
|
||||
if extra != None:
|
||||
extra.close()
|
||||
|
||||
if function_classes.has_key("None"):
|
||||
flist = function_classes["None"]
|
||||
flist.sort(functionCompare)
|
||||
oldfile = ""
|
||||
for info in flist:
|
||||
(index, func, name, ret, args, file) = info
|
||||
(index, func, name, ret, args, file, mod) = info
|
||||
if file != oldfile:
|
||||
classes.write("#\n# Functions from module %s\n#\n\n" % file)
|
||||
oldfile = file
|
||||
@ -1103,7 +1212,7 @@ def buildWrappers():
|
||||
classes.write("%s" % arg[0])
|
||||
n = n + 1
|
||||
classes.write("):\n")
|
||||
writeDoc(name, args, ' ', classes);
|
||||
writeDoc(module, name, args, ' ', classes);
|
||||
|
||||
for arg in args:
|
||||
if classes_type.has_key(arg[1]):
|
||||
@ -1235,7 +1344,7 @@ def buildWrappers():
|
||||
flist.sort(functionCompare)
|
||||
oldfile = ""
|
||||
for info in flist:
|
||||
(index, func, name, ret, args, file) = info
|
||||
(index, func, name, ret, args, file, mod) = info
|
||||
#
|
||||
# Do not provide as method the destructors for the class
|
||||
# to avoid double free
|
||||
@ -1258,7 +1367,7 @@ def buildWrappers():
|
||||
classes.write(", %s" % arg[0])
|
||||
n = n + 1
|
||||
classes.write("):\n")
|
||||
writeDoc(name, args, ' ', classes);
|
||||
writeDoc(module, name, args, ' ', classes);
|
||||
n = 0
|
||||
for arg in args:
|
||||
if classes_type.has_key(arg[1]):
|
||||
@ -1272,8 +1381,8 @@ def buildWrappers():
|
||||
classes.write(" ret = ");
|
||||
else:
|
||||
classes.write(" ");
|
||||
classes.write("libvirtmod.%s(" % name)
|
||||
n = 0
|
||||
classes.write("libvirtmod.%s(" % name)
|
||||
for arg in args:
|
||||
if n != 0:
|
||||
classes.write(", ");
|
||||
@ -1501,7 +1610,123 @@ def buildWrappers():
|
||||
|
||||
classes.close()
|
||||
|
||||
if buildStubs() < 0:
|
||||
def qemuBuildWrappers(module):
|
||||
global qemu_functions
|
||||
|
||||
if not module == "libvirt-qemu":
|
||||
print "ERROR: only libvirt-qemu is supported"
|
||||
return None
|
||||
|
||||
extra_file = "%s-override.py" % module
|
||||
extra = None
|
||||
|
||||
fd = open("libvirt_qemu.py", "w")
|
||||
|
||||
if os.path.exists(extra_file):
|
||||
extra = open(os.path.join(srcPref,extra_file), "r")
|
||||
fd.write("#! " + python + " -i\n")
|
||||
fd.write("#\n")
|
||||
fd.write("# WARNING WARNING WARNING WARNING\n")
|
||||
fd.write("#\n")
|
||||
fd.write("# This file is automatically written by generator.py. Any changes\n")
|
||||
fd.write("# made here will be lost.\n")
|
||||
fd.write("#\n")
|
||||
fd.write("# To change the manually written methods edit " + module + "-override.py\n")
|
||||
fd.write("# To change the automatically written methods edit generator.py\n")
|
||||
fd.write("#\n")
|
||||
fd.write("# WARNING WARNING WARNING WARNING\n")
|
||||
fd.write("#\n")
|
||||
if extra != None:
|
||||
fd.writelines(extra.readlines())
|
||||
fd.write("#\n")
|
||||
fd.write("# WARNING WARNING WARNING WARNING\n")
|
||||
fd.write("#\n")
|
||||
fd.write("# Automatically written part of python bindings for libvirt\n")
|
||||
fd.write("#\n")
|
||||
fd.write("# WARNING WARNING WARNING WARNING\n")
|
||||
if extra != None:
|
||||
extra.close()
|
||||
|
||||
fd.write("try:\n")
|
||||
fd.write(" import libvirtmod_qemu\n")
|
||||
fd.write("except ImportError, lib_e:\n")
|
||||
fd.write(" try:\n")
|
||||
fd.write(" import cygvirtmod_qemu as libvirtmod_qemu\n")
|
||||
fd.write(" except ImportError, cyg_e:\n")
|
||||
fd.write(" if str(cyg_e).count(\"No module named\"):\n")
|
||||
fd.write(" raise lib_e\n\n")
|
||||
|
||||
fd.write("import libvirt\n\n");
|
||||
fd.write("#\n# Functions from module %s\n#\n\n" % module)
|
||||
#
|
||||
# Generate functions directly, no classes
|
||||
#
|
||||
for name in qemu_functions.keys():
|
||||
func = nameFixup(name, 'None', None, None)
|
||||
(desc, ret, args, file, mod, cond) = qemu_functions[name]
|
||||
fd.write("def %s(" % func)
|
||||
n = 0
|
||||
for arg in args:
|
||||
if n != 0:
|
||||
fd.write(", ")
|
||||
fd.write("%s" % arg[0])
|
||||
n = n + 1
|
||||
fd.write("):\n")
|
||||
writeDoc(module, name, args, ' ', fd);
|
||||
|
||||
if ret[0] != "void":
|
||||
fd.write(" ret = ");
|
||||
else:
|
||||
fd.write(" ");
|
||||
fd.write("libvirtmod_qemu.%s(" % name)
|
||||
n = 0
|
||||
|
||||
conn = None
|
||||
|
||||
for arg in args:
|
||||
if arg[1] == "virConnectPtr":
|
||||
conn = arg[0]
|
||||
|
||||
if n != 0:
|
||||
fd.write(", ");
|
||||
if arg[1] in ["virDomainPtr", "virConnectPtr"]:
|
||||
# FIXME: This might have problem if the function
|
||||
# has multiple args which are objects.
|
||||
fd.write("%s.%s" % (arg[0], "_o"))
|
||||
else:
|
||||
fd.write("%s" % arg[0])
|
||||
n = n + 1
|
||||
fd.write(")\n");
|
||||
|
||||
if ret[0] != "void":
|
||||
fd.write(" if ret is None: raise libvirt.libvirtError('" + name + "() failed')\n")
|
||||
if ret[0] == "virDomainPtr":
|
||||
fd.write(" __tmp = virDomain(" + conn + ",_obj=ret)\n")
|
||||
fd.write(" return __tmp\n")
|
||||
else:
|
||||
fd.write(" return ret\n")
|
||||
|
||||
fd.write("\n")
|
||||
|
||||
#
|
||||
# Generate enum constants
|
||||
#
|
||||
for type,enum in qemu_enums.items():
|
||||
fd.write("# %s\n" % type)
|
||||
items = enum.items()
|
||||
items.sort(lambda i1,i2: cmp(long(i1[1]),long(i2[1])))
|
||||
for name,value in items:
|
||||
fd.write("%s = %s\n" % (name,value))
|
||||
fd.write("\n");
|
||||
|
||||
fd.close()
|
||||
|
||||
|
||||
quiet = 0
|
||||
if buildStubs("libvirt") < 0:
|
||||
sys.exit(1)
|
||||
buildWrappers()
|
||||
if buildStubs("libvirt-qemu") < 0:
|
||||
sys.exit(1)
|
||||
buildWrappers("libvirt")
|
||||
qemuBuildWrappers("libvirt-qemu")
|
||||
sys.exit(0)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user