QMP schema is defined in a json file, it will be parsed by
qapi scripts and generate C files.
We want to return the schema information to management,
this patch converts the json file to a string table in a
C head file, then we can use the json content in QEMU code.
eg: (qmp-schema.h)
const char *const qmp_schema_table[] = {
"{ 'type': 'NameInfo', 'data': {'*name': 'str'} }",
"{ 'command': 'query-name', 'returns': 'NameInfo' }",
...
}
Signed-off-by: Amos Kong <address@hidden>
---
Makefile | 5 ++++-
scripts/qapi-commands.py | 2 +-
scripts/qapi-types.py | 48 +++++++++++++++++++++++++++++++++++++++++++++---
scripts/qapi-visit.py | 2 +-
scripts/qapi.py | 20 +++++++++++++++-----
5 files changed, 66 insertions(+), 11 deletions(-)
diff --git a/Makefile b/Makefile
index bdff4e4..2c29755 100644
--- a/Makefile
+++ b/Makefile
@@ -45,7 +45,7 @@ endif
endif
GENERATED_HEADERS = config-host.h qemu-options.def
-GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h
+GENERATED_HEADERS += qmp-commands.h qapi-types.h qapi-visit.h qmp-schema.h
GENERATED_SOURCES += qmp-marshal.c qapi-types.c qapi-visit.c
GENERATED_HEADERS += trace/generated-events.h
@@ -229,6 +229,9 @@ $(SRC_PATH)/qapi-schema.json
$(SRC_PATH)/scripts/qapi-visit.py $(qapi-py)
qmp-commands.h qmp-marshal.c :\
$(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-commands.py $(qapi-py)
$(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-commands.py $(gen-out-type) -m -o
"." < $<, " GEN $@")
+qmp-schema.h:\
+$(SRC_PATH)/qapi-schema.json $(SRC_PATH)/scripts/qapi-types.py $(qapi-py)
+ $(call quiet-command,$(PYTHON) $(SRC_PATH)/scripts/qapi-types.py $(gen-out-type) -o "." -s
"$@" < $<, " GEN $@")
QGALIB_GEN=$(addprefix qga/qapi-generated/, qga-qapi-types.h qga-qapi-visit.h
qga-qmp-commands.h)
$(qga-obj-y) qemu-ga.o: $(QGALIB_GEN)
diff --git a/scripts/qapi-commands.py b/scripts/qapi-commands.py
index b12b696..5f4fb94 100644
--- a/scripts/qapi-commands.py
+++ b/scripts/qapi-commands.py
@@ -440,7 +440,7 @@ except os.error, e:
if e.errno != errno.EEXIST:
raise
-exprs = parse_schema(sys.stdin)
+exprs = parse_schema(sys.stdin)[0]
commands = filter(lambda expr: expr.has_key('command'), exprs)
commands = filter(lambda expr: not expr.has_key('gen'), commands)
diff --git a/scripts/qapi-types.py b/scripts/qapi-types.py
index 4a1652b..0f86b95 100644
--- a/scripts/qapi-types.py
+++ b/scripts/qapi-types.py
@@ -15,6 +15,7 @@ import sys
import os
import getopt
import errno
+import re
def generate_fwd_struct(name, members, builtin_type=False):
if builtin_type:
@@ -282,9 +283,10 @@ void qapi_free_%(type)s(%(c_type)s obj)
try:
- opts, args = getopt.gnu_getopt(sys.argv[1:], "chbp:o:",
+ opts, args = getopt.gnu_getopt(sys.argv[1:], "chbs:p:o:",
["source", "header", "builtins",
- "prefix=", "output-dir="])
+ "schema-dump-file=", "prefix=",
+ "output-dir="])
except getopt.GetoptError, err:
print str(err)
sys.exit(1)
@@ -293,6 +295,7 @@ output_dir = ""
prefix = ""
c_file = 'qapi-types.c'
h_file = 'qapi-types.h'
+schema_dump_file = ""
do_c = False
do_h = False
@@ -309,11 +312,17 @@ for o, a in opts:
do_h = True
elif o in ("-b", "--builtins"):
do_builtins = True
+ elif o in ("-s", "--schema-dump-file"):
+ schema_dump_file = a
if not do_c and not do_h:
do_c = True
do_h = True
+if schema_dump_file:
+ do_c = False
+ do_h = False
+
c_file = output_dir + prefix + c_file
h_file = output_dir + prefix + h_file
@@ -381,7 +390,40 @@ fdecl.write(mcgen('''
''',
guard=guardname(h_file)))
-exprs = parse_schema(sys.stdin)
+exprs_all = parse_schema(sys.stdin)
+
+schema_table = """/* AUTOMATICALLY GENERATED, DO NOT MODIFY */
+
+/*
+ * Schema json string table converted from qapi-schema.json
+ *
+ * Copyright (c) 2013 Red Hat, Inc.
+ *
+ * Authors:
+ * Amos Kong <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+const char *const qmp_schema_table[] = {
+"""
+
+if schema_dump_file:
+ for line in exprs_all[1]:
+ line = re.sub(r'#.*\n', ' ', line.strip())
+ line = re.sub(r'\n', ' ', line.strip())
+ line = re.sub(r' +', ' ', line)
+ schema_table += ' "%s",\n' % (line)
+
+ schema_table += ' NULL };\n'
+ f = open(schema_dump_file, "w")
+ f.write(schema_table)
+ f.flush()
+ f.close()
+
+exprs = exprs_all[0]
exprs = filter(lambda expr: not expr.has_key('gen'), exprs)
fdecl.write(guardstart("QAPI_TYPES_BUILTIN_STRUCT_DECL"))
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 65f1a54..db68084 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -480,7 +480,7 @@ fdecl.write(mcgen('''
''',
prefix=prefix, guard=guardname(h_file)))
-exprs = parse_schema(sys.stdin)
+exprs = parse_schema(sys.stdin)[0]
# to avoid header dependency hell, we always generate declarations
# for built-in types in our header files and simply guard them
diff --git a/scripts/qapi.py b/scripts/qapi.py
index 4263bbd..43cc401 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -61,10 +61,13 @@ class QAPISchema:
self.src += '\n'
self.cursor = 0
self.exprs = []
+ self.raw_exprs = []
self.accept()
while self.tok != None:
- self.exprs.append(self.get_expr(False))
+ self.cur_entry= ''
+ self.exprs.append(self.get_expr(False, True))
+ self.raw_exprs.append(self.cur_entry)
def accept(self):
while True:
@@ -103,9 +106,11 @@ class QAPISchema:
elif not self.tok.isspace():
raise QAPISchemaError(self, 'Stray "%s"' % self.tok)
- def get_members(self):
+ def get_members(self, start=None):
expr = OrderedDict()
if self.tok == '}':
+ if start != None:
+ self.cur_entry = self.src[start:self.cursor]
self.accept()
return expr
if self.tok != "'":
@@ -118,6 +123,8 @@ class QAPISchema:
self.accept()
expr[key] = self.get_expr(True)
if self.tok == '}':
+ if start != None:
+ self.cur_entry = self.src[start:self.cursor]
self.accept()
return expr
if self.tok != ',':
@@ -142,12 +149,15 @@ class QAPISchema:
raise QAPISchemaError(self, 'Expected "," or "]"')
self.accept()
- def get_expr(self, nested):
+ def get_expr(self, nested, first=False):
if self.tok != '{' and not nested:
raise QAPISchemaError(self, 'Expected "{"')
if self.tok == '{':
+ start = None
+ if first:
+ start = self.cursor - 1
self.accept()
- expr = self.get_members()
+ expr = self.get_members(start)
elif self.tok == '[':
self.accept()
expr = self.get_values()
@@ -174,7 +184,7 @@ def parse_schema(fp):
elif expr.has_key('type'):
add_struct(expr)
- return schema.exprs
+ return schema.exprs, schema.raw_exprs
def parse_args(typeinfo):
if isinstance(typeinfo, basestring):