aboutsummaryrefslogtreecommitdiffhomepage
path: root/tools/codegen/core/gen_settings_ids.py
diff options
context:
space:
mode:
Diffstat (limited to 'tools/codegen/core/gen_settings_ids.py')
-rwxr-xr-xtools/codegen/core/gen_settings_ids.py189
1 files changed, 104 insertions, 85 deletions
diff --git a/tools/codegen/core/gen_settings_ids.py b/tools/codegen/core/gen_settings_ids.py
index 481c4216a3..bc4380605a 100755
--- a/tools/codegen/core/gen_settings_ids.py
+++ b/tools/codegen/core/gen_settings_ids.py
@@ -24,92 +24,114 @@ Setting = collections.namedtuple('Setting', 'id default min max on_error')
OnError = collections.namedtuple('OnError', 'behavior code')
clamp_invalid_value = OnError('CLAMP_INVALID_VALUE', 'PROTOCOL_ERROR')
disconnect_on_invalid_value = lambda e: OnError('DISCONNECT_ON_INVALID_VALUE', e)
-DecoratedSetting = collections.namedtuple('DecoratedSetting', 'enum name setting')
+DecoratedSetting = collections.namedtuple('DecoratedSetting',
+ 'enum name setting')
_SETTINGS = {
- 'HEADER_TABLE_SIZE': Setting(1, 4096, 0, 0xffffffff, clamp_invalid_value),
- 'ENABLE_PUSH': Setting(2, 1, 0, 1, disconnect_on_invalid_value('PROTOCOL_ERROR')),
- 'MAX_CONCURRENT_STREAMS': Setting(3, 0xffffffff, 0, 0xffffffff, disconnect_on_invalid_value('PROTOCOL_ERROR')),
- 'INITIAL_WINDOW_SIZE': Setting(4, 65535, 0, 0x7fffffff, disconnect_on_invalid_value('FLOW_CONTROL_ERROR')),
- 'MAX_FRAME_SIZE': Setting(5, 16384, 16384, 16777215, disconnect_on_invalid_value('PROTOCOL_ERROR')),
- 'MAX_HEADER_LIST_SIZE': Setting(6, _MAX_HEADER_LIST_SIZE, 0, _MAX_HEADER_LIST_SIZE, clamp_invalid_value),
- 'GRPC_ALLOW_TRUE_BINARY_METADATA': Setting(0xfe03, 0, 0, 1, clamp_invalid_value),
+ 'HEADER_TABLE_SIZE':
+ Setting(1, 4096, 0, 0xffffffff, clamp_invalid_value),
+ 'ENABLE_PUSH':
+ Setting(2, 1, 0, 1, disconnect_on_invalid_value('PROTOCOL_ERROR')),
+ 'MAX_CONCURRENT_STREAMS':
+ Setting(3, 0xffffffff, 0, 0xffffffff,
+ disconnect_on_invalid_value('PROTOCOL_ERROR')),
+ 'INITIAL_WINDOW_SIZE':
+ Setting(4, 65535, 0, 0x7fffffff,
+ disconnect_on_invalid_value('FLOW_CONTROL_ERROR')),
+ 'MAX_FRAME_SIZE':
+ Setting(5, 16384, 16384, 16777215,
+ disconnect_on_invalid_value('PROTOCOL_ERROR')),
+ 'MAX_HEADER_LIST_SIZE':
+ Setting(6, _MAX_HEADER_LIST_SIZE, 0, _MAX_HEADER_LIST_SIZE,
+ clamp_invalid_value),
+ 'GRPC_ALLOW_TRUE_BINARY_METADATA':
+ Setting(0xfe03, 0, 0, 1, clamp_invalid_value),
}
H = open('src/core/ext/transport/chttp2/transport/http2_settings.h', 'w')
C = open('src/core/ext/transport/chttp2/transport/http2_settings.c', 'w')
+
# utility: print a big comment block into a set of files
def put_banner(files, banner):
- for f in files:
- print >>f, '/*'
- for line in banner:
- print >>f, ' * %s' % line
- print >>f, ' */'
- print >>f
+ for f in files:
+ print >> f, '/*'
+ for line in banner:
+ print >> f, ' * %s' % line
+ print >> f, ' */'
+ print >> f
+
# copy-paste copyright notice from this file
with open(sys.argv[0]) as my_source:
- copyright = []
- for line in my_source:
- if line[0] != '#': break
- for line in my_source:
- if line[0] == '#':
- copyright.append(line)
- break
- for line in my_source:
- if line[0] != '#':
- break
- copyright.append(line)
- put_banner([H,C], [line[2:].rstrip() for line in copyright])
-
-put_banner([H,C], ["Automatically generated by tools/codegen/core/gen_settings_ids.py"])
-
-print >>H, "#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
-print >>H, "#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
-print >>H
-print >>H, "#include <stdint.h>"
-print >>H, "#include <stdbool.h>"
-print >>H
-
-print >>C, "#include \"src/core/ext/transport/chttp2/transport/http2_settings.h\""
-print >>C
-print >>C, "#include <grpc/support/useful.h>"
-print >>C, "#include \"src/core/lib/transport/http2_errors.h\""
-print >>C
+ copyright = []
+ for line in my_source:
+ if line[0] != '#': break
+ for line in my_source:
+ if line[0] == '#':
+ copyright.append(line)
+ break
+ for line in my_source:
+ if line[0] != '#':
+ break
+ copyright.append(line)
+ put_banner([H, C], [line[2:].rstrip() for line in copyright])
+
+put_banner(
+ [H, C],
+ ["Automatically generated by tools/codegen/core/gen_settings_ids.py"])
+
+print >> H, "#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
+print >> H, "#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H"
+print >> H
+print >> H, "#include <stdint.h>"
+print >> H, "#include <stdbool.h>"
+print >> H
+
+print >> C, "#include \"src/core/ext/transport/chttp2/transport/http2_settings.h\""
+print >> C
+print >> C, "#include <grpc/support/useful.h>"
+print >> C, "#include \"src/core/lib/transport/http2_errors.h\""
+print >> C
p = perfection.hash_parameters(sorted(x.id for x in _SETTINGS.values()))
print p
+
def hash(i):
- i += p.offset
- x = i % p.t
- y = i / p.t
- return x + p.r[y]
+ i += p.offset
+ x = i % p.t
+ y = i / p.t
+ return x + p.r[y]
+
-decorated_settings = [DecoratedSetting(hash(setting.id), name, setting)
- for name, setting in _SETTINGS.iteritems()]
+decorated_settings = [
+ DecoratedSetting(hash(setting.id), name, setting)
+ for name, setting in _SETTINGS.iteritems()
+]
-print >>H, 'typedef enum {'
+print >> H, 'typedef enum {'
for decorated_setting in sorted(decorated_settings):
- print >>H, ' GRPC_CHTTP2_SETTINGS_%s = %d, /* wire id %d */' % (
- decorated_setting.name, decorated_setting.enum, decorated_setting.setting.id)
-print >>H, '} grpc_chttp2_setting_id;'
-print >>H
-print >>H, '#define GRPC_CHTTP2_NUM_SETTINGS %d' % (max(x.enum for x in decorated_settings) + 1)
-
-print >>H, 'extern const uint16_t grpc_setting_id_to_wire_id[];'
-print >>C, 'const uint16_t grpc_setting_id_to_wire_id[] = {%s};' % ','.join(
+ print >> H, ' GRPC_CHTTP2_SETTINGS_%s = %d, /* wire id %d */' % (
+ decorated_setting.name, decorated_setting.enum,
+ decorated_setting.setting.id)
+print >> H, '} grpc_chttp2_setting_id;'
+print >> H
+print >> H, '#define GRPC_CHTTP2_NUM_SETTINGS %d' % (
+ max(x.enum for x in decorated_settings) + 1)
+
+print >> H, 'extern const uint16_t grpc_setting_id_to_wire_id[];'
+print >> C, 'const uint16_t grpc_setting_id_to_wire_id[] = {%s};' % ','.join(
'%d' % s for s in p.slots)
-print >>H
-print >>H, "bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id *out);"
+print >> H
+print >> H, "bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id *out);"
cgargs = {
- 'r': ','.join('%d' % (r if r is not None else 0) for r in p.r),
- 't': p.t,
- 'offset': abs(p.offset),
- 'offset_sign': '+' if p.offset > 0 else '-'
- }
-print >>C, """
+ 'r': ','.join('%d' % (r if r is not None else 0) for r in p.r),
+ 't': p.t,
+ 'offset': abs(p.offset),
+ 'offset_sign': '+' if p.offset > 0 else '-'
+}
+print >> C, """
bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id *out) {
uint32_t i = wire_id %(offset_sign)s %(offset)d;
uint32_t x = i %% %(t)d;
@@ -118,17 +140,17 @@ bool grpc_wire_id_to_setting_id(uint32_t wire_id, grpc_chttp2_setting_id *out) {
switch (y) {
""" % cgargs
for i, r in enumerate(p.r):
- if not r: continue
- if r < 0: print >>C, 'case %d: h -= %d; break;' % (i, -r)
- else: print >>C, 'case %d: h += %d; break;' % (i, r)
-print >>C, """
+ if not r: continue
+ if r < 0: print >> C, 'case %d: h -= %d; break;' % (i, -r)
+ else: print >> C, 'case %d: h += %d; break;' % (i, r)
+print >> C, """
}
*out = (grpc_chttp2_setting_id)h;
return h < GPR_ARRAY_SIZE(grpc_setting_id_to_wire_id) && grpc_setting_id_to_wire_id[h] == wire_id;
}
""" % cgargs
-print >>H, """
+print >> H, """
typedef enum {
GRPC_CHTTP2_CLAMP_INVALID_VALUE,
GRPC_CHTTP2_DISCONNECT_ON_INVALID_VALUE
@@ -145,25 +167,22 @@ typedef struct {
extern const grpc_chttp2_setting_parameters grpc_chttp2_settings_parameters[GRPC_CHTTP2_NUM_SETTINGS];
"""
-print >>C, "const grpc_chttp2_setting_parameters grpc_chttp2_settings_parameters[GRPC_CHTTP2_NUM_SETTINGS] = {"
+print >> C, "const grpc_chttp2_setting_parameters grpc_chttp2_settings_parameters[GRPC_CHTTP2_NUM_SETTINGS] = {"
i = 0
for decorated_setting in sorted(decorated_settings):
- while i < decorated_setting.enum:
- print >>C, "{NULL, 0, 0, 0, GRPC_CHTTP2_DISCONNECT_ON_INVALID_VALUE, GRPC_HTTP2_PROTOCOL_ERROR},"
+ while i < decorated_setting.enum:
+ print >> C, "{NULL, 0, 0, 0, GRPC_CHTTP2_DISCONNECT_ON_INVALID_VALUE, GRPC_HTTP2_PROTOCOL_ERROR},"
+ i += 1
+ print >> C, "{\"%s\", %du, %du, %du, GRPC_CHTTP2_%s, GRPC_HTTP2_%s}," % (
+ decorated_setting.name, decorated_setting.setting.default,
+ decorated_setting.setting.min, decorated_setting.setting.max,
+ decorated_setting.setting.on_error.behavior,
+ decorated_setting.setting.on_error.code,)
i += 1
- print >>C, "{\"%s\", %du, %du, %du, GRPC_CHTTP2_%s, GRPC_HTTP2_%s}," % (
- decorated_setting.name,
- decorated_setting.setting.default,
- decorated_setting.setting.min,
- decorated_setting.setting.max,
- decorated_setting.setting.on_error.behavior,
- decorated_setting.setting.on_error.code,
- )
- i += 1
-print >>C, "};"
-
-print >>H
-print >>H, "#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H */"
+print >> C, "};"
+
+print >> H
+print >> H, "#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HTTP2_SETTINGS_H */"
H.close()
C.close()
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-09 05:07:49 +0000