diff options
Diffstat (limited to 'libs/libevent/docs/event_rpcgen.py')
| -rw-r--r-- | libs/libevent/docs/event_rpcgen.py | 1728 |
1 files changed, 0 insertions, 1728 deletions
diff --git a/libs/libevent/docs/event_rpcgen.py b/libs/libevent/docs/event_rpcgen.py deleted file mode 100644 index c537565696..0000000000 --- a/libs/libevent/docs/event_rpcgen.py +++ /dev/null @@ -1,1728 +0,0 @@ -#!/usr/bin/env python2 -# -# Copyright (c) 2005-2007 Niels Provos <provos@citi.umich.edu> -# Copyright (c) 2007-2012 Niels Provos and Nick Mathewson -# All rights reserved. -# -# Generates marshaling code based on libevent. - -# TODO: -# 1) use optparse to allow the strategy shell to parse options, and -# to allow the instantiated factory (for the specific output language) -# to parse remaining options -# 2) move the globals into a class that manages execution (including the -# progress outputs that space stderr at the moment) -# 3) emit other languages - -import sys -import re - -_NAME = "event_rpcgen.py" -_VERSION = "0.1" - -# Globals -line_count = 0 - -white = re.compile(r'\s+') -cppcomment = re.compile(r'\/\/.*$') -nonident = re.compile(r'[^a-zA-Z0-9_]') -structref = re.compile(r'^struct\[([a-zA-Z_][a-zA-Z0-9_]*)\]$') -structdef = re.compile(r'^struct +[a-zA-Z_][a-zA-Z0-9_]* *{$') - -headerdirect = [] -cppdirect = [] - -QUIETLY = 0 - -def declare(s): - if not QUIETLY: - print s - -def TranslateList(mylist, mydict): - return map(lambda x: x % mydict, mylist) - -# Exception class for parse errors -class RpcGenError(Exception): - def __init__(self, why): - self.why = why - def __str__(self): - return str(self.why) - -# Holds everything that makes a struct -class Struct: - def __init__(self, name): - self._name = name - self._entries = [] - self._tags = {} - declare(' Created struct: %s' % name) - - def AddEntry(self, entry): - if self._tags.has_key(entry.Tag()): - raise RpcGenError( - 'Entry "%s" duplicates tag number %d from "%s" ' - 'around line %d' % (entry.Name(), entry.Tag(), - self._tags[entry.Tag()], line_count)) - self._entries.append(entry) - self._tags[entry.Tag()] = entry.Name() - declare(' Added entry: %s' % entry.Name()) - - def Name(self): - return self._name - - def EntryTagName(self, entry): - """Creates the name inside an enumeration for distinguishing data - types.""" - name = "%s_%s" % (self._name, entry.Name()) - return name.upper() - - def PrintIndented(self, file, ident, code): - """Takes an array, add indentation to each entry and prints it.""" - for entry in code: - print >>file, '%s%s' % (ident, entry) - -class StructCCode(Struct): - """ Knows how to generate C code for a struct """ - - def __init__(self, name): - Struct.__init__(self, name) - - def PrintTags(self, file): - """Prints the tag definitions for a structure.""" - print >>file, '/* Tag definition for %s */' % self._name - print >>file, 'enum %s_ {' % self._name.lower() - for entry in self._entries: - print >>file, ' %s=%d,' % (self.EntryTagName(entry), - entry.Tag()) - print >>file, ' %s_MAX_TAGS' % (self._name.upper()) - print >>file, '};\n' - - def PrintForwardDeclaration(self, file): - print >>file, 'struct %s;' % self._name - - def PrintDeclaration(self, file): - print >>file, '/* Structure declaration for %s */' % self._name - print >>file, 'struct %s_access_ {' % self._name - for entry in self._entries: - dcl = entry.AssignDeclaration('(*%s_assign)' % entry.Name()) - dcl.extend( - entry.GetDeclaration('(*%s_get)' % entry.Name())) - if entry.Array(): - dcl.extend( - entry.AddDeclaration('(*%s_add)' % entry.Name())) - self.PrintIndented(file, ' ', dcl) - print >>file, '};\n' - - print >>file, 'struct %s {' % self._name - print >>file, ' struct %s_access_ *base;\n' % self._name - for entry in self._entries: - dcl = entry.Declaration() - self.PrintIndented(file, ' ', dcl) - print >>file, '' - for entry in self._entries: - print >>file, ' ev_uint8_t %s_set;' % entry.Name() - print >>file, '};\n' - - print >>file, \ -"""struct %(name)s *%(name)s_new(void); -struct %(name)s *%(name)s_new_with_arg(void *); -void %(name)s_free(struct %(name)s *); -void %(name)s_clear(struct %(name)s *); -void %(name)s_marshal(struct evbuffer *, const struct %(name)s *); -int %(name)s_unmarshal(struct %(name)s *, struct evbuffer *); -int %(name)s_complete(struct %(name)s *); -void evtag_marshal_%(name)s(struct evbuffer *, ev_uint32_t, - const struct %(name)s *); -int evtag_unmarshal_%(name)s(struct evbuffer *, ev_uint32_t, - struct %(name)s *);""" % { 'name' : self._name } - - - # Write a setting function of every variable - for entry in self._entries: - self.PrintIndented(file, '', entry.AssignDeclaration( - entry.AssignFuncName())) - self.PrintIndented(file, '', entry.GetDeclaration( - entry.GetFuncName())) - if entry.Array(): - self.PrintIndented(file, '', entry.AddDeclaration( - entry.AddFuncName())) - - print >>file, '/* --- %s done --- */\n' % self._name - - def PrintCode(self, file): - print >>file, ('/*\n' - ' * Implementation of %s\n' - ' */\n') % self._name - - print >>file, \ - 'static struct %(name)s_access_ %(name)s_base__ = {' % \ - { 'name' : self._name } - for entry in self._entries: - self.PrintIndented(file, ' ', entry.CodeBase()) - print >>file, '};\n' - - # Creation - print >>file, ( - 'struct %(name)s *\n' - '%(name)s_new(void)\n' - '{\n' - ' return %(name)s_new_with_arg(NULL);\n' - '}\n' - '\n' - 'struct %(name)s *\n' - '%(name)s_new_with_arg(void *unused)\n' - '{\n' - ' struct %(name)s *tmp;\n' - ' if ((tmp = malloc(sizeof(struct %(name)s))) == NULL) {\n' - ' event_warn("%%s: malloc", __func__);\n' - ' return (NULL);\n' - ' }\n' - ' tmp->base = &%(name)s_base__;\n') % { 'name' : self._name } - - for entry in self._entries: - self.PrintIndented(file, ' ', entry.CodeInitialize('tmp')) - print >>file, ' tmp->%s_set = 0;\n' % entry.Name() - - print >>file, ( - ' return (tmp);\n' - '}\n') - - # Adding - for entry in self._entries: - if entry.Array(): - self.PrintIndented(file, '', entry.CodeAdd()) - print >>file, '' - - # Assigning - for entry in self._entries: - self.PrintIndented(file, '', entry.CodeAssign()) - print >>file, '' - - # Getting - for entry in self._entries: - self.PrintIndented(file, '', entry.CodeGet()) - print >>file, '' - - # Clearing - print >>file, ( 'void\n' - '%(name)s_clear(struct %(name)s *tmp)\n' - '{' - ) % { 'name' : self._name } - for entry in self._entries: - self.PrintIndented(file, ' ', entry.CodeClear('tmp')) - - print >>file, '}\n' - - # Freeing - print >>file, ( 'void\n' - '%(name)s_free(struct %(name)s *tmp)\n' - '{' - ) % { 'name' : self._name } - - for entry in self._entries: - self.PrintIndented(file, ' ', entry.CodeFree('tmp')) - - print >>file, (' free(tmp);\n' - '}\n') - - # Marshaling - print >>file, ('void\n' - '%(name)s_marshal(struct evbuffer *evbuf, ' - 'const struct %(name)s *tmp)' - '{') % { 'name' : self._name } - for entry in self._entries: - indent = ' ' - # Optional entries do not have to be set - if entry.Optional(): - indent += ' ' - print >>file, ' if (tmp->%s_set) {' % entry.Name() - self.PrintIndented( - file, indent, - entry.CodeMarshal('evbuf', self.EntryTagName(entry), - entry.GetVarName('tmp'), - entry.GetVarLen('tmp'))) - if entry.Optional(): - print >>file, ' }' - - print >>file, '}\n' - - # Unmarshaling - print >>file, ('int\n' - '%(name)s_unmarshal(struct %(name)s *tmp, ' - ' struct evbuffer *evbuf)\n' - '{\n' - ' ev_uint32_t tag;\n' - ' while (evbuffer_get_length(evbuf) > 0) {\n' - ' if (evtag_peek(evbuf, &tag) == -1)\n' - ' return (-1);\n' - ' switch (tag) {\n' - ) % { 'name' : self._name } - for entry in self._entries: - print >>file, ' case %s:\n' % self.EntryTagName(entry) - if not entry.Array(): - print >>file, ( - ' if (tmp->%s_set)\n' - ' return (-1);' - ) % (entry.Name()) - - self.PrintIndented( - file, ' ', - entry.CodeUnmarshal('evbuf', - self.EntryTagName(entry), - entry.GetVarName('tmp'), - entry.GetVarLen('tmp'))) - - print >>file, ( ' tmp->%s_set = 1;\n' % entry.Name() + - ' break;\n' ) - print >>file, ( ' default:\n' - ' return -1;\n' - ' }\n' - ' }\n' ) - # Check if it was decoded completely - print >>file, ( ' if (%(name)s_complete(tmp) == -1)\n' - ' return (-1);' - ) % { 'name' : self._name } - - # Successfully decoded - print >>file, ( ' return (0);\n' - '}\n') - - # Checking if a structure has all the required data - print >>file, ( - 'int\n' - '%(name)s_complete(struct %(name)s *msg)\n' - '{' ) % { 'name' : self._name } - for entry in self._entries: - if not entry.Optional(): - code = [ - 'if (!msg->%(name)s_set)', - ' return (-1);' ] - code = TranslateList(code, entry.GetTranslation()) - self.PrintIndented( - file, ' ', code) - - self.PrintIndented( - file, ' ', - entry.CodeComplete('msg', entry.GetVarName('msg'))) - print >>file, ( - ' return (0);\n' - '}\n' ) - - # Complete message unmarshaling - print >>file, ( - 'int\n' - 'evtag_unmarshal_%(name)s(struct evbuffer *evbuf, ' - 'ev_uint32_t need_tag, struct %(name)s *msg)\n' - '{\n' - ' ev_uint32_t tag;\n' - ' int res = -1;\n' - '\n' - ' struct evbuffer *tmp = evbuffer_new();\n' - '\n' - ' if (evtag_unmarshal(evbuf, &tag, tmp) == -1' - ' || tag != need_tag)\n' - ' goto error;\n' - '\n' - ' if (%(name)s_unmarshal(msg, tmp) == -1)\n' - ' goto error;\n' - '\n' - ' res = 0;\n' - '\n' - ' error:\n' - ' evbuffer_free(tmp);\n' - ' return (res);\n' - '}\n' ) % { 'name' : self._name } - - # Complete message marshaling - print >>file, ( - 'void\n' - 'evtag_marshal_%(name)s(struct evbuffer *evbuf, ev_uint32_t tag, ' - 'const struct %(name)s *msg)\n' - '{\n' - ' struct evbuffer *buf_ = evbuffer_new();\n' - ' assert(buf_ != NULL);\n' - ' %(name)s_marshal(buf_, msg);\n' - ' evtag_marshal_buffer(evbuf, tag, buf_);\n ' - ' evbuffer_free(buf_);\n' - '}\n' ) % { 'name' : self._name } - -class Entry: - def __init__(self, type, name, tag): - self._type = type - self._name = name - self._tag = int(tag) - self._ctype = type - self._optional = 0 - self._can_be_array = 0 - self._array = 0 - self._line_count = -1 - self._struct = None - self._refname = None - - self._optpointer = True - self._optaddarg = True - - def GetInitializer(self): - assert 0, "Entry does not provide initializer" - - def SetStruct(self, struct): - self._struct = struct - - def LineCount(self): - assert self._line_count != -1 - return self._line_count - - def SetLineCount(self, number): - self._line_count = number - - def Array(self): - return self._array - - def Optional(self): - return self._optional - - def Tag(self): - return self._tag - - def Name(self): - return self._name - - def Type(self): - return self._type - - def MakeArray(self, yes=1): - self._array = yes - - def MakeOptional(self): - self._optional = 1 - - def Verify(self): - if self.Array() and not self._can_be_array: - raise RpcGenError( - 'Entry "%s" cannot be created as an array ' - 'around line %d' % (self._name, self.LineCount())) - if not self._struct: - raise RpcGenError( - 'Entry "%s" does not know which struct it belongs to ' - 'around line %d' % (self._name, self.LineCount())) - if self._optional and self._array: - raise RpcGenError( - 'Entry "%s" has illegal combination of optional and array ' - 'around line %d' % (self._name, self.LineCount())) - - def GetTranslation(self, extradict = {}): - mapping = { - "parent_name" : self._struct.Name(), - "name" : self._name, - "ctype" : self._ctype, - "refname" : self._refname, - "optpointer" : self._optpointer and "*" or "", - "optreference" : self._optpointer and "&" or "", - "optaddarg" : - self._optaddarg and ", const %s value" % self._ctype or "" - } - for (k, v) in extradict.items(): - mapping[k] = v - - return mapping - - def GetVarName(self, var): - return '%(var)s->%(name)s_data' % self.GetTranslation({ 'var' : var }) - - def GetVarLen(self, var): - return 'sizeof(%s)' % self._ctype - - def GetFuncName(self): - return '%s_%s_get' % (self._struct.Name(), self._name) - - def GetDeclaration(self, funcname): - code = [ 'int %s(struct %s *, %s *);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def CodeGet(self): - code = ( - 'int', - '%(parent_name)s_%(name)s_get(struct %(parent_name)s *msg, ' - '%(ctype)s *value)', - '{', - ' if (msg->%(name)s_set != 1)', - ' return (-1);', - ' *value = msg->%(name)s_data;', - ' return (0);', - '}' ) - code = '\n'.join(code) - code = code % self.GetTranslation() - return code.split('\n') - - def AssignFuncName(self): - return '%s_%s_assign' % (self._struct.Name(), self._name) - - def AddFuncName(self): - return '%s_%s_add' % (self._struct.Name(), self._name) - - def AssignDeclaration(self, funcname): - code = [ 'int %s(struct %s *, const %s);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def CodeAssign(self): - code = [ 'int', - '%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg,' - ' const %(ctype)s value)', - '{', - ' msg->%(name)s_set = 1;', - ' msg->%(name)s_data = value;', - ' return (0);', - '}' ] - code = '\n'.join(code) - code = code % self.GetTranslation() - return code.split('\n') - - def CodeClear(self, structname): - code = [ '%s->%s_set = 0;' % (structname, self.Name()) ] - - return code - - def CodeComplete(self, structname, var_name): - return [] - - def CodeFree(self, name): - return [] - - def CodeBase(self): - code = [ - '%(parent_name)s_%(name)s_assign,', - '%(parent_name)s_%(name)s_get,' - ] - if self.Array(): - code.append('%(parent_name)s_%(name)s_add,') - - code = '\n'.join(code) - code = code % self.GetTranslation() - return code.split('\n') - -class EntryBytes(Entry): - def __init__(self, type, name, tag, length): - # Init base class - Entry.__init__(self, type, name, tag) - - self._length = length - self._ctype = 'ev_uint8_t' - - def GetInitializer(self): - return "NULL" - - def GetVarLen(self, var): - return '(%s)' % self._length - - def CodeArrayAdd(self, varname, value): - # XXX: copy here - return [ '%(varname)s = NULL;' % { 'varname' : varname } ] - - def GetDeclaration(self, funcname): - code = [ 'int %s(struct %s *, %s **);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def AssignDeclaration(self, funcname): - code = [ 'int %s(struct %s *, const %s *);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def Declaration(self): - dcl = ['ev_uint8_t %s_data[%s];' % (self._name, self._length)] - - return dcl - - def CodeGet(self): - name = self._name - code = [ 'int', - '%s_%s_get(struct %s *msg, %s **value)' % ( - self._struct.Name(), name, - self._struct.Name(), self._ctype), - '{', - ' if (msg->%s_set != 1)' % name, - ' return (-1);', - ' *value = msg->%s_data;' % name, - ' return (0);', - '}' ] - return code - - def CodeAssign(self): - name = self._name - code = [ 'int', - '%s_%s_assign(struct %s *msg, const %s *value)' % ( - self._struct.Name(), name, - self._struct.Name(), self._ctype), - '{', - ' msg->%s_set = 1;' % name, - ' memcpy(msg->%s_data, value, %s);' % ( - name, self._length), - ' return (0);', - '}' ] - return code - - def CodeUnmarshal(self, buf, tag_name, var_name, var_len): - code = [ 'if (evtag_unmarshal_fixed(%(buf)s, %(tag)s, ' - '%(var)s, %(varlen)s) == -1) {', - ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', - ' return (-1);', - '}' - ] - return TranslateList(code, - self.GetTranslation({ - 'var' : var_name, - 'varlen' : var_len, - 'buf' : buf, - 'tag' : tag_name })) - - def CodeMarshal(self, buf, tag_name, var_name, var_len): - code = ['evtag_marshal(%s, %s, %s, %s);' % ( - buf, tag_name, var_name, var_len)] - return code - - def CodeClear(self, structname): - code = [ '%s->%s_set = 0;' % (structname, self.Name()), - 'memset(%s->%s_data, 0, sizeof(%s->%s_data));' % ( - structname, self._name, structname, self._name)] - - return code - - def CodeInitialize(self, name): - code = ['memset(%s->%s_data, 0, sizeof(%s->%s_data));' % ( - name, self._name, name, self._name)] - return code - - def Verify(self): - if not self._length: - raise RpcGenError( - 'Entry "%s" needs a length ' - 'around line %d' % (self._name, self.LineCount())) - - Entry.Verify(self) - -class EntryInt(Entry): - def __init__(self, type, name, tag, bits=32): - # Init base class - Entry.__init__(self, type, name, tag) - - self._can_be_array = 1 - if bits == 32: - self._ctype = 'ev_uint32_t' - self._marshal_type = 'int' - if bits == 64: - self._ctype = 'ev_uint64_t' - self._marshal_type = 'int64' - - def GetInitializer(self): - return "0" - - def CodeArrayFree(self, var): - return [] - - def CodeArrayAssign(self, varname, srcvar): - return [ '%(varname)s = %(srcvar)s;' % { 'varname' : varname, - 'srcvar' : srcvar } ] - - def CodeArrayAdd(self, varname, value): - """Returns a new entry of this type.""" - return [ '%(varname)s = %(value)s;' % { 'varname' : varname, - 'value' : value } ] - - def CodeUnmarshal(self, buf, tag_name, var_name, var_len): - code = [ - 'if (evtag_unmarshal_%(ma)s(%(buf)s, %(tag)s, &%(var)s) == -1) {', - ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', - ' return (-1);', - '}' ] - code = '\n'.join(code) % self.GetTranslation({ - 'ma' : self._marshal_type, - 'buf' : buf, - 'tag' : tag_name, - 'var' : var_name }) - return code.split('\n') - - def CodeMarshal(self, buf, tag_name, var_name, var_len): - code = [ - 'evtag_marshal_%s(%s, %s, %s);' % ( - self._marshal_type, buf, tag_name, var_name)] - return code - - def Declaration(self): - dcl = ['%s %s_data;' % (self._ctype, self._name)] - - return dcl - - def CodeInitialize(self, name): - code = ['%s->%s_data = 0;' % (name, self._name)] - return code - -class EntryString(Entry): - def __init__(self, type, name, tag): - # Init base class - Entry.__init__(self, type, name, tag) - - self._can_be_array = 1 - self._ctype = 'char *' - - def GetInitializer(self): - return "NULL" - - def CodeArrayFree(self, varname): - code = [ - 'if (%(var)s != NULL) free(%(var)s);' ] - - return TranslateList(code, { 'var' : varname }) - - def CodeArrayAssign(self, varname, srcvar): - code = [ - 'if (%(var)s != NULL)', - ' free(%(var)s);', - '%(var)s = strdup(%(srcvar)s);', - 'if (%(var)s == NULL) {', - ' event_warnx("%%s: strdup", __func__);', - ' return (-1);', - '}' ] - - return TranslateList(code, { 'var' : varname, - 'srcvar' : srcvar }) - - def CodeArrayAdd(self, varname, value): - code = [ - 'if (%(value)s != NULL) {', - ' %(var)s = strdup(%(value)s);', - ' if (%(var)s == NULL) {', - ' goto error;', - ' }', - '} else {', - ' %(var)s = NULL;', - '}' ] - - return TranslateList(code, { 'var' : varname, - 'value' : value }) - - def GetVarLen(self, var): - return 'strlen(%s)' % self.GetVarName(var) - - def CodeMakeInitalize(self, varname): - return '%(varname)s = NULL;' % { 'varname' : varname } - - def CodeAssign(self): - name = self._name - code = """int -%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, - const %(ctype)s value) -{ - if (msg->%(name)s_data != NULL) - free(msg->%(name)s_data); - if ((msg->%(name)s_data = strdup(value)) == NULL) - return (-1); - msg->%(name)s_set = 1; - return (0); -}""" % self.GetTranslation() - - return code.split('\n') - - def CodeUnmarshal(self, buf, tag_name, var_name, var_len): - code = ['if (evtag_unmarshal_string(%(buf)s, %(tag)s, &%(var)s) == -1) {', - ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', - ' return (-1);', - '}' - ] - code = '\n'.join(code) % self.GetTranslation({ - 'buf' : buf, - 'tag' : tag_name, - 'var' : var_name }) - return code.split('\n') - - def CodeMarshal(self, buf, tag_name, var_name, var_len): - code = ['evtag_marshal_string(%s, %s, %s);' % ( - buf, tag_name, var_name)] - return code - - def CodeClear(self, structname): - code = [ 'if (%s->%s_set == 1) {' % (structname, self.Name()), - ' free(%s->%s_data);' % (structname, self.Name()), - ' %s->%s_data = NULL;' % (structname, self.Name()), - ' %s->%s_set = 0;' % (structname, self.Name()), - '}' - ] - - return code - - def CodeInitialize(self, name): - code = ['%s->%s_data = NULL;' % (name, self._name)] - return code - - def CodeFree(self, name): - code = ['if (%s->%s_data != NULL)' % (name, self._name), - ' free (%s->%s_data);' % (name, self._name)] - - return code - - def Declaration(self): - dcl = ['char *%s_data;' % self._name] - - return dcl - -class EntryStruct(Entry): - def __init__(self, type, name, tag, refname): - # Init base class - Entry.__init__(self, type, name, tag) - - self._optpointer = False - self._can_be_array = 1 - self._refname = refname - self._ctype = 'struct %s*' % refname - self._optaddarg = False - - def GetInitializer(self): - return "NULL" - - def GetVarLen(self, var): - return '-1' - - def CodeArrayAdd(self, varname, value): - code = [ - '%(varname)s = %(refname)s_new();', - 'if (%(varname)s == NULL)', - ' goto error;' ] - - return TranslateList(code, self.GetTranslation({ 'varname' : varname })) - - def CodeArrayFree(self, var): - code = [ '%(refname)s_free(%(var)s);' % self.GetTranslation( - { 'var' : var }) ] - return code - - def CodeArrayAssign(self, var, srcvar): - code = [ - 'int had_error = 0;', - 'struct evbuffer *tmp = NULL;', - '%(refname)s_clear(%(var)s);', - 'if ((tmp = evbuffer_new()) == NULL) {', - ' event_warn("%%s: evbuffer_new()", __func__);', - ' had_error = 1;', - ' goto done;', - '}', - '%(refname)s_marshal(tmp, %(srcvar)s);', - 'if (%(refname)s_unmarshal(%(var)s, tmp) == -1) {', - ' event_warnx("%%s: %(refname)s_unmarshal", __func__);', - ' had_error = 1;', - ' goto done;', - '}', - 'done:' - 'if (tmp != NULL)', - ' evbuffer_free(tmp);', - 'if (had_error) {', - ' %(refname)s_clear(%(var)s);', - ' return (-1);', - '}' ] - - return TranslateList(code, self.GetTranslation({ - 'var' : var, - 'srcvar' : srcvar})) - - def CodeGet(self): - name = self._name - code = [ 'int', - '%s_%s_get(struct %s *msg, %s *value)' % ( - self._struct.Name(), name, - self._struct.Name(), self._ctype), - '{', - ' if (msg->%s_set != 1) {' % name, - ' msg->%s_data = %s_new();' % (name, self._refname), - ' if (msg->%s_data == NULL)' % name, - ' return (-1);', - ' msg->%s_set = 1;' % name, - ' }', - ' *value = msg->%s_data;' % name, - ' return (0);', - '}' ] - return code - - def CodeAssign(self): - name = self._name - code = """int -%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, - const %(ctype)s value) -{ - struct evbuffer *tmp = NULL; - if (msg->%(name)s_set) { - %(refname)s_clear(msg->%(name)s_data); - msg->%(name)s_set = 0; - } else { - msg->%(name)s_data = %(refname)s_new(); - if (msg->%(name)s_data == NULL) { - event_warn("%%s: %(refname)s_new()", __func__); - goto error; - } - } - if ((tmp = evbuffer_new()) == NULL) { - event_warn("%%s: evbuffer_new()", __func__); - goto error; - } - %(refname)s_marshal(tmp, value); - if (%(refname)s_unmarshal(msg->%(name)s_data, tmp) == -1) { - event_warnx("%%s: %(refname)s_unmarshal", __func__); - goto error; - } - msg->%(name)s_set = 1; - evbuffer_free(tmp); - return (0); - error: - if (tmp != NULL) - evbuffer_free(tmp); - if (msg->%(name)s_data != NULL) { - %(refname)s_free(msg->%(name)s_data); - msg->%(name)s_data = NULL; - } - return (-1); -}""" % self.GetTranslation() - return code.split('\n') - - def CodeComplete(self, structname, var_name): - code = [ 'if (%(structname)s->%(name)s_set && ' - '%(refname)s_complete(%(var)s) == -1)', - ' return (-1);' ] - - return TranslateList(code, self.GetTranslation({ - 'structname' : structname, - 'var' : var_name })) - - def CodeUnmarshal(self, buf, tag_name, var_name, var_len): - code = ['%(var)s = %(refname)s_new();', - 'if (%(var)s == NULL)', - ' return (-1);', - 'if (evtag_unmarshal_%(refname)s(%(buf)s, %(tag)s, ' - '%(var)s) == -1) {', - ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', - ' return (-1);', - '}' - ] - code = '\n'.join(code) % self.GetTranslation({ - 'buf' : buf, - 'tag' : tag_name, - 'var' : var_name }) - return code.split('\n') - - def CodeMarshal(self, buf, tag_name, var_name, var_len): - code = ['evtag_marshal_%s(%s, %s, %s);' % ( - self._refname, buf, tag_name, var_name)] - return code - - def CodeClear(self, structname): - code = [ 'if (%s->%s_set == 1) {' % (structname, self.Name()), - ' %s_free(%s->%s_data);' % ( - self._refname, structname, self.Name()), - ' %s->%s_data = NULL;' % (structname, self.Name()), - ' %s->%s_set = 0;' % (structname, self.Name()), - '}' - ] - - return code - - def CodeInitialize(self, name): - code = ['%s->%s_data = NULL;' % (name, self._name)] - return code - - def CodeFree(self, name): - code = ['if (%s->%s_data != NULL)' % (name, self._name), - ' %s_free(%s->%s_data);' % ( - self._refname, name, self._name)] - - return code - - def Declaration(self): - dcl = ['%s %s_data;' % (self._ctype, self._name)] - - return dcl - -class EntryVarBytes(Entry): - def __init__(self, type, name, tag): - # Init base class - Entry.__init__(self, type, name, tag) - - self._ctype = 'ev_uint8_t *' - - def GetInitializer(self): - return "NULL" - - def GetVarLen(self, var): - return '%(var)s->%(name)s_length' % self.GetTranslation({ 'var' : var }) - - def CodeArrayAdd(self, varname, value): - # xxx: copy - return [ '%(varname)s = NULL;' % { 'varname' : varname } ] - - def GetDeclaration(self, funcname): - code = [ 'int %s(struct %s *, %s *, ev_uint32_t *);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def AssignDeclaration(self, funcname): - code = [ 'int %s(struct %s *, const %s, ev_uint32_t);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def CodeAssign(self): - name = self._name - code = [ 'int', - '%s_%s_assign(struct %s *msg, ' - 'const %s value, ev_uint32_t len)' % ( - self._struct.Name(), name, - self._struct.Name(), self._ctype), - '{', - ' if (msg->%s_data != NULL)' % name, - ' free (msg->%s_data);' % name, - ' msg->%s_data = malloc(len);' % name, - ' if (msg->%s_data == NULL)' % name, - ' return (-1);', - ' msg->%s_set = 1;' % name, - ' msg->%s_length = len;' % name, - ' memcpy(msg->%s_data, value, len);' % name, - ' return (0);', - '}' ] - return code - - def CodeGet(self): - name = self._name - code = [ 'int', - '%s_%s_get(struct %s *msg, %s *value, ev_uint32_t *plen)' % ( - self._struct.Name(), name, - self._struct.Name(), self._ctype), - '{', - ' if (msg->%s_set != 1)' % name, - ' return (-1);', - ' *value = msg->%s_data;' % name, - ' *plen = msg->%s_length;' % name, - ' return (0);', - '}' ] - return code - - def CodeUnmarshal(self, buf, tag_name, var_name, var_len): - code = ['if (evtag_payload_length(%(buf)s, &%(varlen)s) == -1)', - ' return (-1);', - # We do not want DoS opportunities - 'if (%(varlen)s > evbuffer_get_length(%(buf)s))', - ' return (-1);', - 'if ((%(var)s = malloc(%(varlen)s)) == NULL)', - ' return (-1);', - 'if (evtag_unmarshal_fixed(%(buf)s, %(tag)s, %(var)s, ' - '%(varlen)s) == -1) {', - ' event_warnx("%%s: failed to unmarshal %(name)s", __func__);', - ' return (-1);', - '}' - ] - code = '\n'.join(code) % self.GetTranslation({ - 'buf' : buf, - 'tag' : tag_name, - 'var' : var_name, - 'varlen' : var_len }) - return code.split('\n') - - def CodeMarshal(self, buf, tag_name, var_name, var_len): - code = ['evtag_marshal(%s, %s, %s, %s);' % ( - buf, tag_name, var_name, var_len)] - return code - - def CodeClear(self, structname): - code = [ 'if (%s->%s_set == 1) {' % (structname, self.Name()), - ' free (%s->%s_data);' % (structname, self.Name()), - ' %s->%s_data = NULL;' % (structname, self.Name()), - ' %s->%s_length = 0;' % (structname, self.Name()), - ' %s->%s_set = 0;' % (structname, self.Name()), - '}' - ] - - return code - - def CodeInitialize(self, name): - code = ['%s->%s_data = NULL;' % (name, self._name), - '%s->%s_length = 0;' % (name, self._name) ] - return code - - def CodeFree(self, name): - code = ['if (%s->%s_data != NULL)' % (name, self._name), - ' free(%s->%s_data);' % (name, self._name)] - - return code - - def Declaration(self): - dcl = ['ev_uint8_t *%s_data;' % self._name, - 'ev_uint32_t %s_length;' % self._name] - - return dcl - -class EntryArray(Entry): - def __init__(self, entry): - # Init base class - Entry.__init__(self, entry._type, entry._name, entry._tag) - - self._entry = entry - self._refname = entry._refname - self._ctype = self._entry._ctype - self._optional = True - self._optpointer = self._entry._optpointer - self._optaddarg = self._entry._optaddarg - - # provide a new function for accessing the variable name - def GetVarName(var_name): - return '%(var)s->%(name)s_data[%(index)s]' % \ - self._entry.GetTranslation({'var' : var_name, - 'index' : self._index}) - self._entry.GetVarName = GetVarName - - def GetInitializer(self): - return "NULL" - - def GetVarName(self, var_name): - return var_name - - def GetVarLen(self, var_name): - return '-1' - - def GetDeclaration(self, funcname): - """Allows direct access to elements of the array.""" - code = [ - 'int %(funcname)s(struct %(parent_name)s *, int, %(ctype)s *);' % - self.GetTranslation({ 'funcname' : funcname }) ] - return code - - def AssignDeclaration(self, funcname): - code = [ 'int %s(struct %s *, int, const %s);' % ( - funcname, self._struct.Name(), self._ctype ) ] - return code - - def AddDeclaration(self, funcname): - code = [ - '%(ctype)s %(optpointer)s ' - '%(funcname)s(struct %(parent_name)s *msg%(optaddarg)s);' % \ - self.GetTranslation({ 'funcname' : funcname }) ] - return code - - def CodeGet(self): - code = """int -%(parent_name)s_%(name)s_get(struct %(parent_name)s *msg, int offset, - %(ctype)s *value) -{ - if (!msg->%(name)s_set || offset < 0 || offset >= msg->%(name)s_length) - return (-1); - *value = msg->%(name)s_data[offset]; - return (0); -}""" % self.GetTranslation() - - return code.split('\n') - - def CodeAssign(self): - code = [ - 'int', - '%(parent_name)s_%(name)s_assign(struct %(parent_name)s *msg, int off,', - ' const %(ctype)s value)', - '{', - ' if (!msg->%(name)s_set || off < 0 || off >= msg->%(name)s_length)', - ' return (-1);\n', - ' {' ] - code = TranslateList(code, self.GetTranslation()) - - codearrayassign = self._entry.CodeArrayAssign( - 'msg->%(name)s_data[off]' % self.GetTranslation(), 'value') - code += map(lambda x: ' ' + x, codearrayassign) - - code += TranslateList([ - ' }', - ' return (0);', - '}' ], self.GetTranslation()) - - return code - - def CodeAdd(self): - codearrayadd = self._entry.CodeArrayAdd( - 'msg->%(name)s_data[msg->%(name)s_length - 1]' % self.GetTranslation(), - 'value') - code = [ - 'static int', - '%(parent_name)s_%(name)s_expand_to_hold_more(' - 'struct %(parent_name)s *msg)', - '{', - ' int tobe_allocated = msg->%(name)s_num_allocated;', - ' %(ctype)s* new_data = NULL;', - ' tobe_allocated = !tobe_allocated ? 1 : tobe_allocated << 1;', - ' new_data = (%(ctype)s*) realloc(msg->%(name)s_data,', - ' tobe_allocated * sizeof(%(ctype)s));', - ' if (new_data == NULL)', - ' return -1;', - ' msg->%(name)s_data = new_data;', - ' msg->%(name)s_num_allocated = tobe_allocated;', - ' return 0;' - '}', - '', - '%(ctype)s %(optpointer)s', - '%(parent_name)s_%(name)s_add(' - 'struct %(parent_name)s *msg%(optaddarg)s)', - '{', - ' if (++msg->%(name)s_length >= msg->%(name)s_num_allocated) {', - ' if (%(parent_name)s_%(name)s_expand_to_hold_more(msg)<0)', - ' goto error;', - ' }' ] - - code = TranslateList(code, self.GetTranslation()) - - code += map(lambda x: ' ' + x, codearrayadd) - - code += TranslateList([ - ' msg->%(name)s_set = 1;', - ' return %(optreference)s(msg->%(name)s_data[' - 'msg->%(name)s_length - 1]);', - 'error:', - ' --msg->%(name)s_length;', - ' return (NULL);', - '}' ], self.GetTranslation()) - - return code - - def CodeComplete(self, structname, var_name): - self._index = 'i' - tmp = self._entry.CodeComplete(structname, self._entry.GetVarName(var_name)) - # skip the whole loop if there is nothing to check - if not tmp: - return [] - - translate = self.GetTranslation({ 'structname' : structname }) - code = [ - '{', - ' int i;', - ' for (i = 0; i < %(structname)s->%(name)s_length; ++i) {' ] - - code = TranslateList(code, translate) - - code += map(lambda x: ' ' + x, tmp) - - code += [ - ' }', - '}' ] - - return code - - def CodeUnmarshal(self, buf, tag_name, var_name, var_len): - translate = self.GetTranslation({ 'var' : var_name, - 'buf' : buf, - 'tag' : tag_name, - 'init' : self._entry.GetInitializer()}) - code = [ - 'if (%(var)s->%(name)s_length >= %(var)s->%(name)s_num_allocated &&', - ' %(parent_name)s_%(name)s_expand_to_hold_more(%(var)s) < 0) {', - ' puts("HEY NOW");', - ' return (-1);', - '}'] - - # the unmarshal code directly returns - code = TranslateList(code, translate) - - self._index = '%(var)s->%(name)s_length' % translate - code += self._entry.CodeUnmarshal(buf, tag_name, - self._entry.GetVarName(var_name), - self._entry.GetVarLen(var_name)) - - code += [ '++%(var)s->%(name)s_length;' % translate ] - - return code - - def CodeMarshal(self, buf, tag_name, var_name, var_len): - code = ['{', - ' int i;', - ' for (i = 0; i < %(var)s->%(name)s_length; ++i) {' ] - - self._index = 'i' - code += self._entry.CodeMarshal(buf, tag_name, - self._entry.GetVarName(var_name), - self._entry.GetVarLen(var_name)) - code += [' }', - '}' - ] - - code = "\n".join(code) % self.GetTranslation({ 'var' : var_name }) - - return code.split('\n') - - def CodeClear(self, structname): - translate = self.GetTranslation({ 'structname' : structname }) - codearrayfree = self._entry.CodeArrayFree( - '%(structname)s->%(name)s_data[i]' % self.GetTranslation( - { 'structname' : structname } )) - - code = [ 'if (%(structname)s->%(name)s_set == 1) {' ] - - if codearrayfree: - code += [ - ' int i;', - ' for (i = 0; i < %(structname)s->%(name)s_length; ++i) {' ] - - code = TranslateList(code, translate) - - if codearrayfree: - code += map(lambda x: ' ' + x, codearrayfree) - code += [ - ' }' ] - - code += TranslateList([ - ' free(%(structname)s->%(name)s_data);', - ' %(structname)s->%(name)s_data = NULL;', - ' %(structname)s->%(name)s_set = 0;', - ' %(structname)s->%(name)s_length = 0;', - ' %(structname)s->%(name)s_num_allocated = 0;', - '}' - ], translate) - - return code - - def CodeInitialize(self, name): - code = ['%s->%s_data = NULL;' % (name, self._name), - '%s->%s_length = 0;' % (name, self._name), - '%s->%s_num_allocated = 0;' % (name, self._name)] - return code - - def CodeFree(self, structname): - code = self.CodeClear(structname); - - code += TranslateList([ - 'free(%(structname)s->%(name)s_data);' ], - self.GetTranslation({'structname' : structname })) - - return code - - def Declaration(self): - dcl = ['%s *%s_data;' % (self._ctype, self._name), - 'int %s_length;' % self._name, - 'int %s_num_allocated;' % self._name ] - - return dcl - -def NormalizeLine(line): - global white - global cppcomment - - line = cppcomment.sub('', line) - line = line.strip() - line = white.sub(' ', line) - - return line - -def ProcessOneEntry(factory, newstruct, entry): - optional = 0 - array = 0 - entry_type = '' - name = '' - tag = '' - tag_set = None - separator = '' - fixed_length = '' - - tokens = entry.split(' ') - while tokens: - token = tokens[0] - tokens = tokens[1:] - - if not entry_type: - if not optional and token == 'optional': - optional = 1 - continue - - if not array and token == 'array': - array = 1 - continue - - if not entry_type: - entry_type = token - continue - - if not name: - res = re.match(r'^([^\[\]]+)(\[.*\])?$', token) - if not res: - raise RpcGenError( - 'Cannot parse name: \"%s\" ' - 'around line %d' % (entry, line_count)) - name = res.group(1) - fixed_length = res.group(2) - if fixed_length: - fixed_length = fixed_length[1:-1] - continue - - if not separator: - separator = token - if separator != '=': - raise RpcGenError('Expected "=" after name \"%s\" got %s' - % (name, token)) - continue - - if not tag_set: - tag_set = 1 - if not re.match(r'^(0x)?[0-9]+$', token): - raise RpcGenError('Expected tag number: \"%s\"' % entry) - tag = int(token, 0) - continue - - raise RpcGenError('Cannot parse \"%s\"' % entry) - - if not tag_set: - raise RpcGenError('Need tag number: \"%s\"' % entry) - - # Create the right entry - if entry_type == 'bytes': - if fixed_length: - newentry = factory.EntryBytes(entry_type, name, tag, fixed_length) - else: - newentry = factory.EntryVarBytes(entry_type, name, tag) - elif entry_type == 'int' and not fixed_length: - newentry = factory.EntryInt(entry_type, name, tag) - elif entry_type == 'int64' and not fixed_length: - newentry = factory.EntryInt(entry_type, name, tag, bits=64) - elif entry_type == 'string' and not fixed_length: - newentry = factory.EntryString(entry_type, name, tag) - else: - res = structref.match(entry_type) - if res: - # References another struct defined in our file - newentry = factory.EntryStruct(entry_type, name, tag, res.group(1)) - else: - raise RpcGenError('Bad type: "%s" in "%s"' % (entry_type, entry)) - - structs = [] - - if optional: - newentry.MakeOptional() - if array: - newentry.MakeArray() - - newentry.SetStruct(newstruct) - newentry.SetLineCount(line_count) - newentry.Verify() - - if array: - # We need to encapsulate this entry into a struct - newname = newentry.Name()+ '_array' - - # Now borgify the new entry. - newentry = factory.EntryArray(newentry) - newentry.SetStruct(newstruct) - newentry.SetLineCount(line_count) - newentry.MakeArray() - - newstruct.AddEntry(newentry) - - return structs - -def ProcessStruct(factory, data): - tokens = data.split(' ') - - # First three tokens are: 'struct' 'name' '{' - newstruct = factory.Struct(tokens[1]) - - inside = ' '.join(tokens[3:-1]) - - tokens = inside.split(';') - - structs = [] - - for entry in tokens: - entry = NormalizeLine(entry) - if not entry: - continue - - # It's possible that new structs get defined in here - structs.extend(ProcessOneEntry(factory, newstruct, entry)) - - structs.append(newstruct) - return structs - -def GetNextStruct(file): - global line_count - global cppdirect - - got_struct = 0 - - processed_lines = [] - - have_c_comment = 0 - data = '' - while 1: - line = file.readline() - if not line: - break - - line_count += 1 - line = line[:-1] - - if not have_c_comment and re.search(r'/\*', line): - if re.search(r'/\*.*?\*/', line): - line = re.sub(r'/\*.*?\*/', '', line) - else: - line = re.sub(r'/\*.*$', '', line) - have_c_comment = 1 - - if have_c_comment: - if not re.search(r'\*/', line): - continue - have_c_comment = 0 - line = re.sub(r'^.*\*/', '', line) - - line = NormalizeLine(line) - - if not line: - continue - - if not got_struct: - if re.match(r'#include ["<].*[>"]', line): - cppdirect.append(line) - continue - - if re.match(r'^#(if( |def)|endif)', line): - cppdirect.append(line) - continue - - if re.match(r'^#define', line): - headerdirect.append(line) - continue - - if not structdef.match(line): - raise RpcGenError('Missing struct on line %d: %s' - % (line_count, line)) - else: - got_struct = 1 - data += line - continue - - # We are inside the struct - tokens = line.split('}') - if len(tokens) == 1: - data += ' ' + line - continue - - if len(tokens[1]): - raise RpcGenError('Trailing garbage after struct on line %d' - % line_count) - - # We found the end of the struct - data += ' %s}' % tokens[0] - break - - # Remove any comments, that might be in there - data = re.sub(r'/\*.*\*/', '', data) - - return data - - -def Parse(factory, file): - """ - Parses the input file and returns C code and corresponding header file. - """ - - entities = [] - - while 1: - # Just gets the whole struct nicely formatted - data = GetNextStruct(file) - - if not data: - break - - entities.extend(ProcessStruct(factory, data)) - - return entities - -class CCodeGenerator: - def __init__(self): - pass - - def GuardName(self, name): - # Use the complete provided path to the input file, with all - # non-identifier characters replaced with underscores, to - # reduce the chance of a collision between guard macros. - return 'EVENT_RPCOUT_' + nonident.sub('_', name).upper() + '_' - - def HeaderPreamble(self, name): - guard = self.GuardName(name) - pre = ( - '/*\n' - ' * Automatically generated from %s\n' - ' */\n\n' - '#ifndef %s\n' - '#define %s\n\n' ) % ( - name, guard, guard) - - for statement in headerdirect: - pre += '%s\n' % statement - if headerdirect: - pre += '\n' - - pre += ( - '#include <event2/util.h> /* for ev_uint*_t */\n' - '#include <event2/rpc.h>\n' - ) - - return pre - - def HeaderPostamble(self, name): - guard = self.GuardName(name) - return '#endif /* %s */' % guard - - def BodyPreamble(self, name, header_file): - global _NAME - global _VERSION - - slash = header_file.rfind('/') - if slash != -1: - header_file = header_file[slash+1:] - - pre = ( '/*\n' - ' * Automatically generated from %s\n' - ' * by %s/%s. DO NOT EDIT THIS FILE.\n' - ' */\n\n' ) % (name, _NAME, _VERSION) - pre += ( '#include <stdlib.h>\n' - '#include <string.h>\n' - '#include <assert.h>\n' - '#include <event2/event-config.h>\n' - '#include <event2/event.h>\n' - '#include <event2/buffer.h>\n' - '#include <event2/tag.h>\n\n' - '#ifdef EVENT____func__\n' - '#define __func__ EVENT____func__\n' - '#endif\n\n' - ) - - for statement in cppdirect: - pre += '%s\n' % statement - - pre += '\n#include "%s"\n\n' % header_file - - pre += 'void event_warn(const char *fmt, ...);\n' - pre += 'void event_warnx(const char *fmt, ...);\n\n' - - return pre - - def HeaderFilename(self, filename): - return '.'.join(filename.split('.')[:-1]) + '.h' - - def CodeFilename(self, filename): - return '.'.join(filename.split('.')[:-1]) + '.gen.c' - - def Struct(self, name): - return StructCCode(name) - - def EntryBytes(self, entry_type, name, tag, fixed_length): - return EntryBytes(entry_type, name, tag, fixed_length) - - def EntryVarBytes(self, entry_type, name, tag): - return EntryVarBytes(entry_type, name, tag) - - def EntryInt(self, entry_type, name, tag, bits=32): - return EntryInt(entry_type, name, tag, bits) - - def EntryString(self, entry_type, name, tag): - return EntryString(entry_type, name, tag) - - def EntryStruct(self, entry_type, name, tag, struct_name): - return EntryStruct(entry_type, name, tag, struct_name) - - def EntryArray(self, entry): - return EntryArray(entry) - -class Usage(RpcGenError): - def __init__(self, argv0): - RpcGenError.__init__("usage: %s input.rpc [[output.h] output.c]" - % argv0) - -class CommandLine: - def __init__(self, argv): - """Initialize a command-line to launch event_rpcgen, as if - from a command-line with CommandLine(sys.argv). If you're - calling this directly, remember to provide a dummy value - for sys.argv[0] - """ - self.filename = None - self.header_file = None - self.impl_file = None - self.factory = CCodeGenerator() - - if len(argv) >= 2 and argv[1] == '--quiet': - global QUIETLY - QUIETLY = 1 - del argv[1] - - if len(argv) < 2 or len(argv) > 4: - raise Usage(argv[0]) - - self.filename = argv[1].replace('\\', '/') - if len(argv) == 3: - self.impl_file = argv[2].replace('\\', '/') - if len(argv) == 4: - self.header_file = argv[2].replace('\\', '/') - self.impl_file = argv[3].replace('\\', '/') - - if not self.filename: - raise Usage(argv[0]) - - if not self.impl_file: - self.impl_file = self.factory.CodeFilename(self.filename) - - if not self.header_file: - self.header_file = self.factory.HeaderFilename(self.impl_file) - - if not self.impl_file.endswith('.c'): - raise RpcGenError("can only generate C implementation files") - if not self.header_file.endswith('.h'): - raise RpcGenError("can only generate C header files") - - def run(self): - filename = self.filename - header_file = self.header_file - impl_file = self.impl_file - factory = self.factory - - declare('Reading \"%s\"' % filename) - - fp = open(filename, 'r') - entities = Parse(factory, fp) - fp.close() - - declare('... creating "%s"' % header_file) - header_fp = open(header_file, 'w') - print >>header_fp, factory.HeaderPreamble(filename) - - # Create forward declarations: allows other structs to reference - # each other - for entry in entities: - entry.PrintForwardDeclaration(header_fp) - print >>header_fp, '' - - for entry in entities: - entry.PrintTags(header_fp) - entry.PrintDeclaration(header_fp) - print >>header_fp, factory.HeaderPostamble(filename) - header_fp.close() - - declare('... creating "%s"' % impl_file) - impl_fp = open(impl_file, 'w') - print >>impl_fp, factory.BodyPreamble(filename, header_file) - for entry in entities: - entry.PrintCode(impl_fp) - impl_fp.close() - -if __name__ == '__main__': - try: - CommandLine(sys.argv).run() - sys.exit(0) - - except RpcGenError, e: - print >>sys.stderr, e - sys.exit(1) - - except EnvironmentError, e: - if e.filename and e.strerror: - print >>sys.stderr, "%s: %s" % (e.filename, e.strerror) - sys.exit(1) - elif e.strerror: - print >> sys.stderr, e.strerror - sys.exit(1) - else: - raise |