| #!/usr/bin/env python2.7 |
| |
| # Copyright 2015 gRPC authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| import hashlib |
| import itertools |
| import collections |
| import os |
| import sys |
| import subprocess |
| import re |
| import perfection |
| |
| # Configuration: a list of either strings or 2-tuples of strings or 3-tuples of |
| # strings. |
| # A single string represents a static grpc_mdstr. |
| # A 2-tuple represents a static grpc_mdelem (and appropriate grpc_mdstrs will |
| # also be created). |
| # A 3-tuple represents a static grpc_mdelem (and appropriate grpc_mdstrs will |
| # also be created), with the last value equivalent to the mdelem's static hpack |
| # table index as defined by RFC 7541 |
| |
| CONFIG = [ |
| # metadata strings |
| 'host', |
| 'grpc-timeout', |
| 'grpc-internal-encoding-request', |
| 'grpc-internal-stream-encoding-request', |
| 'grpc-payload-bin', |
| ':path', |
| 'grpc-encoding', |
| 'grpc-accept-encoding', |
| 'user-agent', |
| ':authority', |
| 'grpc-message', |
| 'grpc-status', |
| 'grpc-server-stats-bin', |
| 'grpc-tags-bin', |
| 'grpc-trace-bin', |
| 'grpc-previous-rpc-attempts', |
| 'grpc-retry-pushback-ms', |
| '1', |
| '2', |
| '3', |
| '4', |
| '', |
| # channel arg keys |
| 'grpc.wait_for_ready', |
| 'grpc.timeout', |
| 'grpc.max_request_message_bytes', |
| 'grpc.max_response_message_bytes', |
| # well known method names |
| '/grpc.lb.v1.LoadBalancer/BalanceLoad', |
| # compression algorithm names |
| 'deflate', |
| 'gzip', |
| 'stream/gzip', |
| # metadata elements |
| ('grpc-status', '0'), |
| ('grpc-status', '1'), |
| ('grpc-status', '2'), |
| ('grpc-encoding', 'identity'), |
| ('grpc-encoding', 'gzip'), |
| ('grpc-encoding', 'deflate'), |
| ('te', 'trailers'), |
| ('content-type', 'application/grpc'), |
| (':method', 'POST', 3), |
| (':status', '200', 8), |
| (':status', '404', 13), |
| (':scheme', 'http', 6), |
| (':scheme', 'https', 7), |
| (':scheme', 'grpc', 0), |
| (':authority', '', 1), |
| (':method', 'GET', 2), |
| (':method', 'PUT'), |
| (':path', '/', 4), |
| (':path', '/index.html', 5), |
| (':status', '204', 9), |
| (':status', '206', 10), |
| (':status', '304', 11), |
| (':status', '400', 12), |
| (':status', '500', 14), |
| ('accept-charset', '', 15), |
| ('accept-encoding', ''), |
| ('accept-encoding', 'gzip, deflate', 16), |
| ('accept-language', '', 17), |
| ('accept-ranges', '', 18), |
| ('accept', '', 19), |
| ('access-control-allow-origin', '', 20), |
| ('age', '', 21), |
| ('allow', '', 22), |
| ('authorization', '', 23), |
| ('cache-control', '', 24), |
| ('content-disposition', '', 25), |
| ('content-encoding', 'identity'), |
| ('content-encoding', 'gzip'), |
| ('content-encoding', '', 26), |
| ('content-language', '', 27), |
| ('content-length', '', 28), |
| ('content-location', '', 29), |
| ('content-range', '', 30), |
| ('content-type', '', 31), |
| ('cookie', '', 32), |
| ('date', '', 33), |
| ('etag', '', 34), |
| ('expect', '', 35), |
| ('expires', '', 36), |
| ('from', '', 37), |
| ('host', '', 38), |
| ('if-match', '', 39), |
| ('if-modified-since', '', 40), |
| ('if-none-match', '', 41), |
| ('if-range', '', 42), |
| ('if-unmodified-since', '', 43), |
| ('last-modified', '', 44), |
| ('lb-token', ''), |
| ('lb-cost-bin', ''), |
| ('link', '', 45), |
| ('location', '', 46), |
| ('max-forwards', '', 47), |
| ('proxy-authenticate', '', 48), |
| ('proxy-authorization', '', 49), |
| ('range', '', 50), |
| ('referer', '', 51), |
| ('refresh', '', 52), |
| ('retry-after', '', 53), |
| ('server', '', 54), |
| ('set-cookie', '', 55), |
| ('strict-transport-security', '', 56), |
| ('transfer-encoding', '', 57), |
| ('user-agent', '', 58), |
| ('vary', '', 59), |
| ('via', '', 60), |
| ('www-authenticate', '', 61), |
| ] |
| |
| # All entries here are ignored when counting non-default initial metadata that |
| # prevents the chttp2 server from sending a Trailers-Only response. |
| METADATA_BATCH_CALLOUTS = [ |
| # (name) |
| (':path'), |
| (':method'), |
| (':status'), |
| (':authority'), |
| (':scheme'), |
| ('te'), |
| ('grpc-message'), |
| ('grpc-status'), |
| ('grpc-payload-bin'), |
| ('grpc-encoding'), |
| ('grpc-accept-encoding'), |
| ('grpc-server-stats-bin'), |
| ('grpc-tags-bin'), |
| ('grpc-trace-bin'), |
| ('content-type'), |
| ('content-encoding'), |
| ('accept-encoding'), |
| ('grpc-internal-encoding-request'), |
| ('grpc-internal-stream-encoding-request'), |
| ('user-agent'), |
| ('host'), |
| ('lb-token'), |
| ('grpc-previous-rpc-attempts'), |
| ('grpc-retry-pushback-ms'), |
| ] |
| |
| COMPRESSION_ALGORITHMS = [ |
| 'identity', |
| 'deflate', |
| 'gzip', |
| ] |
| |
| STREAM_COMPRESSION_ALGORITHMS = [ |
| 'identity', |
| 'gzip', |
| ] |
| |
| |
| # utility: mangle the name of a config |
| def mangle(elem, name=None): |
| xl = { |
| '-': '_', |
| ':': '', |
| '/': 'slash', |
| '.': 'dot', |
| ',': 'comma', |
| ' ': '_', |
| } |
| |
| def m0(x): |
| if not x: |
| return 'empty' |
| r = '' |
| for c in x: |
| put = xl.get(c, c.lower()) |
| if not put: |
| continue |
| last_is_underscore = r[-1] == '_' if r else True |
| if last_is_underscore and put == '_': |
| continue |
| elif len(put) > 1: |
| if not last_is_underscore: |
| r += '_' |
| r += put |
| r += '_' |
| else: |
| r += put |
| if r[-1] == '_': |
| r = r[:-1] |
| return r |
| |
| def n(default, name=name): |
| if name is None: |
| return 'grpc_%s_' % default |
| if name == '': |
| return '' |
| return 'grpc_%s_' % name |
| |
| if isinstance(elem, tuple): |
| return '%s%s_%s' % (n('mdelem'), m0(elem[0]), m0(elem[1])) |
| else: |
| return '%s%s' % (n('mdstr'), m0(elem)) |
| |
| |
| # utility: generate some hash value for a string |
| def fake_hash(elem): |
| return hashlib.md5(elem).hexdigest()[0:8] |
| |
| |
| # 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 |
| |
| |
| # build a list of all the strings we need |
| all_strs = list() |
| all_elems = list() |
| static_userdata = {} |
| # put metadata batch callouts first, to make the check of if a static metadata |
| # string is a callout trivial |
| for elem in METADATA_BATCH_CALLOUTS: |
| if elem not in all_strs: |
| all_strs.append(elem) |
| for elem in CONFIG: |
| if isinstance(elem, tuple): |
| if elem[0] not in all_strs: |
| all_strs.append(elem[0]) |
| if elem[1] not in all_strs: |
| all_strs.append(elem[1]) |
| if elem not in all_elems: |
| all_elems.append(elem) |
| else: |
| if elem not in all_strs: |
| all_strs.append(elem) |
| compression_elems = [] |
| for mask in range(1, 1 << len(COMPRESSION_ALGORITHMS)): |
| val = ','.join(COMPRESSION_ALGORITHMS[alg] |
| for alg in range(0, len(COMPRESSION_ALGORITHMS)) |
| if (1 << alg) & mask) |
| elem = ('grpc-accept-encoding', val) |
| if val not in all_strs: |
| all_strs.append(val) |
| if elem not in all_elems: |
| all_elems.append(elem) |
| compression_elems.append(elem) |
| static_userdata[elem] = 1 + (mask | 1) |
| stream_compression_elems = [] |
| for mask in range(1, 1 << len(STREAM_COMPRESSION_ALGORITHMS)): |
| val = ','.join(STREAM_COMPRESSION_ALGORITHMS[alg] |
| for alg in range(0, len(STREAM_COMPRESSION_ALGORITHMS)) |
| if (1 << alg) & mask) |
| elem = ('accept-encoding', val) |
| if val not in all_strs: |
| all_strs.append(val) |
| if elem not in all_elems: |
| all_elems.append(elem) |
| stream_compression_elems.append(elem) |
| static_userdata[elem] = 1 + (mask | 1) |
| |
| # output configuration |
| args = sys.argv[1:] |
| H = None |
| C = None |
| D = None |
| if args: |
| if 'header' in args: |
| H = sys.stdout |
| else: |
| H = open('/dev/null', 'w') |
| if 'source' in args: |
| C = sys.stdout |
| else: |
| C = open('/dev/null', 'w') |
| if 'dictionary' in args: |
| D = sys.stdout |
| else: |
| D = open('/dev/null', 'w') |
| else: |
| H = open( |
| os.path.join( |
| os.path.dirname(sys.argv[0]), |
| '../../../src/core/lib/transport/static_metadata.h'), 'w') |
| C = open( |
| os.path.join( |
| os.path.dirname(sys.argv[0]), |
| '../../../src/core/lib/transport/static_metadata.cc'), 'w') |
| D = open( |
| os.path.join( |
| os.path.dirname(sys.argv[0]), |
| '../../../test/core/end2end/fuzzers/hpack.dictionary'), 'w') |
| |
| HPACK_H = open( |
| os.path.join( |
| os.path.dirname(sys.argv[0]), |
| '../../../src/core/ext/transport/chttp2/transport/hpack_mapping.h'), |
| 'w') |
| HPACK_C = open( |
| os.path.join( |
| os.path.dirname(sys.argv[0]), |
| '../../../src/core/ext/transport/chttp2/transport/hpack_mapping.cc'), |
| 'w') |
| |
| # 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, HPACK_H, HPACK_C], |
| [line[2:].rstrip() for line in copyright]) |
| |
| hex_bytes = [ord(c) for c in 'abcdefABCDEF0123456789'] |
| |
| |
| def esc_dict(line): |
| out = "\"" |
| for c in line: |
| if 32 <= c < 127: |
| if c != ord('"'): |
| out += chr(c) |
| else: |
| out += "\\\"" |
| else: |
| out += '\\x%02X' % c |
| return out + "\"" |
| |
| |
| put_banner([H, C], """WARNING: Auto-generated code. |
| |
| To make changes to this file, change |
| tools/codegen/core/gen_static_metadata.py, and then re-run it. |
| |
| See metadata.h for an explanation of the interface here, and metadata.cc for |
| an explanation of what's going on. |
| """.splitlines()) |
| |
| put_banner([HPACK_H, HPACK_C], """WARNING: Auto-generated code. |
| |
| To make changes to this file, change |
| tools/codegen/core/gen_static_metadata.py, and then re-run it. |
| |
| This file contains the mapping from the index of each metadata element in the |
| grpc static metadata table to the index of that element in the hpack static |
| metadata table. If the element is not contained in the static hpack table, then |
| the returned index is 0. |
| """.splitlines()) |
| |
| print >> H, '#ifndef GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H' |
| print >> H, '#define GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H' |
| print >> H |
| print >> H, '#include <grpc/support/port_platform.h>' |
| print >> H |
| print >> H, '#include "src/core/lib/transport/metadata.h"' |
| print >> H |
| print >> C, '#include <grpc/support/port_platform.h>' |
| print >> C |
| print >> C, '#include "src/core/lib/transport/static_metadata.h"' |
| print >> C |
| print >> C, '#include "src/core/lib/slice/slice_internal.h"' |
| print >> C |
| print >> HPACK_H, ('#ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_' |
| 'MAPPING_H') |
| print >> HPACK_H, ('#define GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_' |
| 'MAPPING_H') |
| print >> HPACK_H |
| print >> HPACK_H, '#include <grpc/support/port_platform.h>' |
| print >> HPACK_H |
| print >> HPACK_H, '#include "src/core/lib/transport/static_metadata.h"' |
| print >> HPACK_H |
| print >> HPACK_C, '#include <grpc/support/port_platform.h>' |
| print >> HPACK_C |
| print >> HPACK_C, ('#include ' |
| '"src/core/ext/transport/chttp2/transport/hpack_mapping.h"') |
| print >> HPACK_C |
| |
| str_ofs = 0 |
| id2strofs = {} |
| for i, elem in enumerate(all_strs): |
| id2strofs[i] = str_ofs |
| str_ofs += len(elem) |
| |
| |
| def slice_def(i): |
| return ('{&grpc_static_metadata_refcounts[%d],' |
| ' {{g_bytes+%d, %d}}}') % (i, id2strofs[i], len(all_strs[i])) |
| |
| |
| # validate configuration |
| for elem in METADATA_BATCH_CALLOUTS: |
| assert elem in all_strs |
| |
| print >> H, '#define GRPC_STATIC_MDSTR_COUNT %d' % len(all_strs) |
| print >> H, ('extern const grpc_slice ' |
| 'grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT];') |
| for i, elem in enumerate(all_strs): |
| print >> H, '/* "%s" */' % elem |
| print >> H, '#define %s (grpc_static_slice_table[%d])' % ( |
| mangle(elem).upper(), i) |
| print >> H |
| print >> C, 'static uint8_t g_bytes[] = {%s};' % (','.join( |
| '%d' % ord(c) for c in ''.join(all_strs))) |
| print >> C |
| print >> C, 'static void static_ref(void *unused) {}' |
| print >> C, 'static void static_unref(void *unused) {}' |
| print >> C, ('static const grpc_slice_refcount_vtable static_sub_vtable = ' |
| '{static_ref, static_unref, grpc_slice_default_eq_impl, ' |
| 'grpc_slice_default_hash_impl};') |
| print >> H, ('extern const grpc_slice_refcount_vtable ' |
| 'grpc_static_metadata_vtable;') |
| print >> C, ('const grpc_slice_refcount_vtable grpc_static_metadata_vtable = ' |
| '{static_ref, static_unref, grpc_static_slice_eq, ' |
| 'grpc_static_slice_hash};') |
| print >> C, ('static grpc_slice_refcount static_sub_refcnt = ' |
| '{&static_sub_vtable, &static_sub_refcnt};') |
| print >> H, ('extern grpc_slice_refcount ' |
| 'grpc_static_metadata_refcounts[GRPC_STATIC_MDSTR_COUNT];') |
| print >> C, ('grpc_slice_refcount ' |
| 'grpc_static_metadata_refcounts[GRPC_STATIC_MDSTR_COUNT] = {') |
| for i, elem in enumerate(all_strs): |
| print >> C, ' {&grpc_static_metadata_vtable, &static_sub_refcnt},' |
| print >> C, '};' |
| print >> C |
| print >> H, '#define GRPC_IS_STATIC_METADATA_STRING(slice) \\' |
| print >> H, (' ((slice).refcount != NULL && (slice).refcount->vtable == ' |
| '&grpc_static_metadata_vtable)') |
| print >> H |
| print >> C, ('const grpc_slice grpc_static_slice_table[GRPC_STATIC_MDSTR_COUNT]' |
| ' = {') |
| for i, elem in enumerate(all_strs): |
| print >> C, slice_def(i) + ',' |
| print >> C, '};' |
| print >> C |
| print >> H, '#define GRPC_STATIC_METADATA_INDEX(static_slice) \\' |
| print >> H, (' ((int)((static_slice).refcount - ' |
| 'grpc_static_metadata_refcounts))') |
| print >> H |
| |
| print >> D, '# hpack fuzzing dictionary' |
| for i, elem in enumerate(all_strs): |
| print >> D, '%s' % (esc_dict([len(elem)] + [ord(c) for c in elem])) |
| for i, elem in enumerate(all_elems): |
| print >> D, '%s' % (esc_dict([0, len(elem[0])] + [ord(c) for c in elem[0]] + |
| [len(elem[1])] + [ord(c) for c in elem[1]])) |
| |
| print >> H, '#define GRPC_STATIC_MDELEM_COUNT %d' % len(all_elems) |
| print >> H, ('extern grpc_mdelem_data ' |
| 'grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT];') |
| print >> H, ('extern uintptr_t ' |
| 'grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT];') |
| for i, elem in enumerate(all_elems): |
| print >> H, '/* "%s": "%s" */' % (elem[0], elem[1]) |
| print >> H, ('#define %s (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[%d], ' |
| 'GRPC_MDELEM_STORAGE_STATIC))') % (mangle(elem).upper(), i) |
| print >> H |
| |
| # Print out the chttp2 mapping between static mdelem index and the hpack static |
| # table index |
| print >> HPACK_H, ('extern const uint8_t grpc_hpack_static_mdelem_indices[' |
| 'GRPC_STATIC_MDELEM_COUNT];') |
| print >> HPACK_H |
| print >> HPACK_C, ('const uint8_t grpc_hpack_static_mdelem_indices[' |
| 'GRPC_STATIC_MDELEM_COUNT] = {') |
| indices = '' |
| for elem in all_elems: |
| index = 0 |
| if len(elem) == 3: |
| index = elem[2] |
| indices += '%d,' % index |
| print >> HPACK_C, ' %s' % indices |
| print >> HPACK_C, '};' |
| print >> HPACK_C |
| |
| print >> C, ('uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT] ' |
| '= {') |
| print >> C, ' %s' % ','.join( |
| '%d' % static_userdata.get(elem, 0) for elem in all_elems) |
| print >> C, '};' |
| print >> C |
| |
| |
| def str_idx(s): |
| for i, s2 in enumerate(all_strs): |
| if s == s2: |
| return i |
| |
| |
| def md_idx(m): |
| for i, m2 in enumerate(all_elems): |
| if m == m2: |
| return i |
| |
| |
| def offset_trials(mink): |
| yield 0 |
| for i in range(1, 100): |
| for mul in [-1, 1]: |
| yield mul * i |
| |
| |
| def perfect_hash(keys, name): |
| p = perfection.hash_parameters(keys) |
| |
| def f(i, p=p): |
| i += p.offset |
| x = i % p.t |
| y = i / p.t |
| return x + p.r[y] |
| |
| return { |
| 'PHASHRANGE': p.t - 1 + max(p.r), |
| 'PHASHNKEYS': len(p.slots), |
| 'pyfunc': f, |
| 'code': """ |
| static const int8_t %(name)s_r[] = {%(r)s}; |
| static uint32_t %(name)s_phash(uint32_t i) { |
| i %(offset_sign)s= %(offset)d; |
| uint32_t x = i %% %(t)d; |
| uint32_t y = i / %(t)d; |
| uint32_t h = x; |
| if (y < GPR_ARRAY_SIZE(%(name)s_r)) { |
| uint32_t delta = (uint32_t)%(name)s_r[y]; |
| h += delta; |
| } |
| return h; |
| } |
| """ % { |
| 'name': name, |
| '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 '-' |
| } |
| } |
| |
| |
| elem_keys = [ |
| str_idx(elem[0]) * len(all_strs) + str_idx(elem[1]) for elem in all_elems |
| ] |
| elem_hash = perfect_hash(elem_keys, 'elems') |
| print >> C, elem_hash['code'] |
| |
| keys = [0] * int(elem_hash['PHASHRANGE']) |
| idxs = [255] * int(elem_hash['PHASHNKEYS']) |
| for i, k in enumerate(elem_keys): |
| h = elem_hash['pyfunc'](k) |
| assert keys[h] == 0 |
| keys[h] = k |
| idxs[h] = i |
| print >> C, 'static const uint16_t elem_keys[] = {%s};' % ','.join( |
| '%d' % k for k in keys) |
| print >> C, 'static const uint8_t elem_idxs[] = {%s};' % ','.join( |
| '%d' % i for i in idxs) |
| print >> C |
| |
| print >> H, 'grpc_mdelem grpc_static_mdelem_for_static_strings(int a, int b);' |
| print >> C, 'grpc_mdelem grpc_static_mdelem_for_static_strings(int a, int b) {' |
| print >> C, ' if (a == -1 || b == -1) return GRPC_MDNULL;' |
| print >> C, ' uint32_t k = (uint32_t)(a * %d + b);' % len(all_strs) |
| print >> C, ' uint32_t h = elems_phash(k);' |
| print >> C, ' return h < GPR_ARRAY_SIZE(elem_keys) && elem_keys[h] == k && elem_idxs[h] != 255 ? GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[elem_idxs[h]], GRPC_MDELEM_STORAGE_STATIC) : GRPC_MDNULL;' |
| print >> C, '}' |
| print >> C |
| |
| print >> C, 'grpc_mdelem_data grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT] = {' |
| for elem in all_elems: |
| print >> C, '{%s,%s},' % (slice_def(str_idx(elem[0])), |
| slice_def(str_idx(elem[1]))) |
| print >> C, '};' |
| |
| print >> H, 'typedef enum {' |
| for elem in METADATA_BATCH_CALLOUTS: |
| print >> H, ' %s,' % mangle(elem, 'batch').upper() |
| print >> H, ' GRPC_BATCH_CALLOUTS_COUNT' |
| print >> H, '} grpc_metadata_batch_callouts_index;' |
| print >> H |
| print >> H, 'typedef union {' |
| print >> H, ' struct grpc_linked_mdelem *array[GRPC_BATCH_CALLOUTS_COUNT];' |
| print >> H, ' struct {' |
| for elem in METADATA_BATCH_CALLOUTS: |
| print >> H, ' struct grpc_linked_mdelem *%s;' % mangle(elem, '').lower() |
| print >> H, ' } named;' |
| print >> H, '} grpc_metadata_batch_callouts;' |
| print >> H |
| print >> H, '#define GRPC_BATCH_INDEX_OF(slice) \\' |
| print >> H, ' (GRPC_IS_STATIC_METADATA_STRING((slice)) ? (grpc_metadata_batch_callouts_index)GPR_CLAMP(GRPC_STATIC_METADATA_INDEX((slice)), 0, GRPC_BATCH_CALLOUTS_COUNT) : GRPC_BATCH_CALLOUTS_COUNT)' |
| print >> H |
| |
| print >> H, 'extern const uint8_t grpc_static_accept_encoding_metadata[%d];' % ( |
| 1 << len(COMPRESSION_ALGORITHMS)) |
| print >> C, 'const uint8_t grpc_static_accept_encoding_metadata[%d] = {' % ( |
| 1 << len(COMPRESSION_ALGORITHMS)) |
| print >> C, '0,%s' % ','.join('%d' % md_idx(elem) for elem in compression_elems) |
| print >> C, '};' |
| print >> C |
| |
| print >> H, '#define GRPC_MDELEM_ACCEPT_ENCODING_FOR_ALGORITHMS(algs) (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[grpc_static_accept_encoding_metadata[(algs)]], GRPC_MDELEM_STORAGE_STATIC))' |
| print >> H |
| |
| print >> H, 'extern const uint8_t grpc_static_accept_stream_encoding_metadata[%d];' % ( |
| 1 << len(STREAM_COMPRESSION_ALGORITHMS)) |
| print >> C, 'const uint8_t grpc_static_accept_stream_encoding_metadata[%d] = {' % ( |
| 1 << len(STREAM_COMPRESSION_ALGORITHMS)) |
| print >> C, '0,%s' % ','.join( |
| '%d' % md_idx(elem) for elem in stream_compression_elems) |
| print >> C, '};' |
| |
| print >> H, '#define GRPC_MDELEM_ACCEPT_STREAM_ENCODING_FOR_ALGORITHMS(algs) (GRPC_MAKE_MDELEM(&grpc_static_mdelem_table[grpc_static_accept_stream_encoding_metadata[(algs)]], GRPC_MDELEM_STORAGE_STATIC))' |
| |
| print >> H, '#endif /* GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H */' |
| |
| print >> HPACK_H, ('#endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_HPACK_' |
| 'MAPPING_H */') |
| |
| H.close() |
| C.close() |