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authorNaoki INADA <inada-n@eagle>2009-06-24 01:38:48 +0900
committerNaoki INADA <inada-n@eagle>2009-06-24 01:38:48 +0900
commitd32b48f98f09be8c829a8d48f8d7fcdb4bd0c61e (patch)
treee6edbb1ab5973b4f647a0ab1992d9dc96779a4d5 /msgpack/unpack_template.h
parentf2d07e5d6906567ce06d87dd21085828b3ebc1cc (diff)
downloadmsgpack-python-d32b48f98f09be8c829a8d48f8d7fcdb4bd0c61e.tar.gz
Remove duplicated values.
Diffstat (limited to 'msgpack/unpack_template.h')
-rw-r--r--msgpack/unpack_template.h363
1 files changed, 363 insertions, 0 deletions
diff --git a/msgpack/unpack_template.h b/msgpack/unpack_template.h
new file mode 100644
index 0000000..db33368
--- /dev/null
+++ b/msgpack/unpack_template.h
@@ -0,0 +1,363 @@
+/*
+ * MessagePack unpacking routine template
+ *
+ * Copyright (C) 2008-2009 FURUHASHI Sadayuki
+ *
+ * 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.
+ */
+
+#ifndef msgpack_unpack_func
+#error msgpack_unpack_func template is not defined
+#endif
+
+#ifndef msgpack_unpack_callback
+#error msgpack_unpack_callback template is not defined
+#endif
+
+#ifndef msgpack_unpack_struct
+#error msgpack_unpack_struct template is not defined
+#endif
+
+#ifndef msgpack_unpack_struct_decl
+#define msgpack_unpack_struct_decl(name) msgpack_unpack_struct(name)
+#endif
+
+#ifndef msgpack_unpack_object
+#error msgpack_unpack_object type is not defined
+#endif
+
+#ifndef msgpack_unpack_user
+#error msgpack_unpack_user type is not defined
+#endif
+
+
+msgpack_unpack_struct_decl(_stack) {
+ msgpack_unpack_object obj;
+ size_t curr;
+ size_t count;
+ unsigned int ct;
+ msgpack_unpack_object map_key;
+};
+
+msgpack_unpack_struct_decl(_context) {
+ msgpack_unpack_user user;
+ unsigned int cs;
+ unsigned int trail;
+ unsigned int top;
+ msgpack_unpack_struct(_stack) stack[MSGPACK_MAX_STACK_SIZE];
+};
+
+
+msgpack_unpack_func(void, _init)(msgpack_unpack_struct(_context)* ctx)
+{
+ ctx->cs = CS_HEADER;
+ ctx->trail = 0;
+ ctx->top = 0;
+ ctx->stack[0].obj = msgpack_unpack_callback(_root)(&ctx->user);
+}
+
+msgpack_unpack_func(msgpack_unpack_object, _data)(msgpack_unpack_struct(_context)* ctx)
+{
+ return (ctx)->stack[0].obj;
+}
+
+
+msgpack_unpack_func(int, _execute)(msgpack_unpack_struct(_context)* ctx, const char* data, size_t len, size_t* off)
+{
+ assert(len >= *off);
+
+ const unsigned char* p = (unsigned char*)data + *off;
+ const unsigned char* const pe = (unsigned char*)data + len;
+ const void* n = NULL;
+
+ unsigned int trail = ctx->trail;
+ unsigned int cs = ctx->cs;
+ unsigned int top = ctx->top;
+ msgpack_unpack_struct(_stack)* stack = ctx->stack;
+ msgpack_unpack_user* user = &ctx->user;
+
+ msgpack_unpack_object obj;
+ msgpack_unpack_struct(_stack)* c = NULL;
+
+ int ret;
+
+#define push_simple_value(func) \
+ if(msgpack_unpack_callback(func)(user, &obj) < 0) { goto _failed; } \
+ goto _push
+#define push_fixed_value(func, arg) \
+ if(msgpack_unpack_callback(func)(user, arg, &obj) < 0) { goto _failed; } \
+ goto _push
+#define push_variable_value(func, base, pos, len) \
+ if(msgpack_unpack_callback(func)(user, \
+ (const char*)base, (const char*)pos, len, &obj) < 0) { goto _failed; } \
+ goto _push
+
+#define again_fixed_trail(_cs, trail_len) \
+ trail = trail_len; \
+ cs = _cs; \
+ goto _fixed_trail_again
+#define again_fixed_trail_if_zero(_cs, trail_len, ifzero) \
+ trail = trail_len; \
+ if(trail == 0) { goto ifzero; } \
+ cs = _cs; \
+ goto _fixed_trail_again
+
+#define start_container(func, count_, ct_) \
+ if(msgpack_unpack_callback(func)(user, count_, &stack[top].obj) < 0) { goto _failed; } \
+ if((count_) == 0) { obj = stack[top].obj; goto _push; } \
+ if(top >= MSGPACK_MAX_STACK_SIZE) { goto _failed; } \
+ stack[top].ct = ct_; \
+ stack[top].curr = 0; \
+ stack[top].count = count_; \
+ /*printf("container %d count %d stack %d\n",stack[top].obj,count_,top);*/ \
+ /*printf("stack push %d\n", top);*/ \
+ ++top; \
+ goto _header_again
+
+#define NEXT_CS(p) \
+ ((unsigned int)*p & 0x1f)
+
+#define PTR_CAST_8(ptr) (*(uint8_t*)ptr)
+#define PTR_CAST_16(ptr) msgpack_betoh16(*(uint16_t*)ptr)
+#define PTR_CAST_32(ptr) msgpack_betoh32(*(uint32_t*)ptr)
+#define PTR_CAST_64(ptr) msgpack_betoh64(*(uint64_t*)ptr)
+
+ if(p == pe) { goto _out; }
+ do {
+ switch(cs) {
+ case CS_HEADER:
+ switch(*p) {
+ case 0x00 ... 0x7f: // Positive Fixnum
+ push_fixed_value(_uint8, *(uint8_t*)p);
+ case 0xe0 ... 0xff: // Negative Fixnum
+ push_fixed_value(_int8, *(int8_t*)p);
+ case 0xc0 ... 0xdf: // Variable
+ switch(*p) {
+ case 0xc0: // nil
+ push_simple_value(_nil);
+ //case 0xc1: // string
+ // again_terminal_trail(NEXT_CS(p), p+1);
+ case 0xc2: // false
+ push_simple_value(_false);
+ case 0xc3: // true
+ push_simple_value(_true);
+ //case 0xc4:
+ //case 0xc5:
+ //case 0xc6:
+ //case 0xc7:
+ //case 0xc8:
+ //case 0xc9:
+ case 0xca: // float
+ case 0xcb: // double
+ case 0xcc: // unsigned int 8
+ case 0xcd: // unsigned int 16
+ case 0xce: // unsigned int 32
+ case 0xcf: // unsigned int 64
+ case 0xd0: // signed int 8
+ case 0xd1: // signed int 16
+ case 0xd2: // signed int 32
+ case 0xd3: // signed int 64
+ again_fixed_trail(NEXT_CS(p), 1 << (((unsigned int)*p) & 0x03));
+ //case 0xd4:
+ //case 0xd5:
+ //case 0xd6: // big integer 16
+ //case 0xd7: // big integer 32
+ //case 0xd8: // big float 16
+ //case 0xd9: // big float 32
+ case 0xda: // raw 16
+ case 0xdb: // raw 32
+ case 0xdc: // array 16
+ case 0xdd: // array 32
+ case 0xde: // map 16
+ case 0xdf: // map 32
+ again_fixed_trail(NEXT_CS(p), 2 << (((unsigned int)*p) & 0x01));
+ default:
+ goto _failed;
+ }
+ case 0xa0 ... 0xbf: // FixRaw
+ again_fixed_trail_if_zero(ACS_RAW_VALUE, ((unsigned int)*p & 0x1f), _raw_zero);
+ case 0x90 ... 0x9f: // FixArray
+ start_container(_array, ((unsigned int)*p) & 0x0f, CT_ARRAY_ITEM);
+ case 0x80 ... 0x8f: // FixMap
+ start_container(_map, ((unsigned int)*p) & 0x0f, CT_MAP_KEY);
+
+ default:
+ goto _failed;
+ }
+ // end CS_HEADER
+
+
+ _fixed_trail_again:
+ ++p;
+
+ default:
+ if((size_t)(pe - p) < trail) { goto _out; }
+ n = p; p += trail - 1;
+ switch(cs) {
+ //case CS_
+ //case CS_
+ case CS_FLOAT: {
+ union { uint32_t num; char buf[4]; } f;
+ f.num = PTR_CAST_32(n); // FIXME
+ push_fixed_value(_float, *((float*)f.buf)); }
+ case CS_DOUBLE: {
+ union { uint64_t num; char buf[8]; } f;
+ f.num = PTR_CAST_64(n); // FIXME
+ push_fixed_value(_double, *((double*)f.buf)); }
+ case CS_UINT_8:
+ push_fixed_value(_uint8, (uint8_t)PTR_CAST_8(n));
+ case CS_UINT_16:
+ push_fixed_value(_uint16, (uint16_t)PTR_CAST_16(n));
+ case CS_UINT_32:
+ push_fixed_value(_uint32, (uint32_t)PTR_CAST_32(n));
+ case CS_UINT_64:
+ push_fixed_value(_uint64, (uint64_t)PTR_CAST_64(n));
+
+ case CS_INT_8:
+ push_fixed_value(_int8, (int8_t)PTR_CAST_8(n));
+ case CS_INT_16:
+ push_fixed_value(_int16, (int16_t)PTR_CAST_16(n));
+ case CS_INT_32:
+ push_fixed_value(_int32, (int32_t)PTR_CAST_32(n));
+ case CS_INT_64:
+ push_fixed_value(_int64, (int64_t)PTR_CAST_64(n));
+
+ //case CS_
+ //case CS_
+ //case CS_BIG_INT_16:
+ // again_fixed_trail_if_zero(ACS_BIG_INT_VALUE, (uint16_t)PTR_CAST_16(n), _big_int_zero);
+ //case CS_BIG_INT_32:
+ // again_fixed_trail_if_zero(ACS_BIG_INT_VALUE, (uint32_t)PTR_CAST_32(n), _big_int_zero);
+ //case ACS_BIG_INT_VALUE:
+ //_big_int_zero:
+ // // FIXME
+ // push_variable_value(_big_int, data, n, trail);
+
+ //case CS_BIG_FLOAT_16:
+ // again_fixed_trail_if_zero(ACS_BIG_FLOAT_VALUE, (uint16_t)PTR_CAST_16(n), _big_float_zero);
+ //case CS_BIG_FLOAT_32:
+ // again_fixed_trail_if_zero(ACS_BIG_FLOAT_VALUE, (uint32_t)PTR_CAST_32(n), _big_float_zero);
+ //case ACS_BIG_FLOAT_VALUE:
+ //_big_float_zero:
+ // // FIXME
+ // push_variable_value(_big_float, data, n, trail);
+
+ case CS_RAW_16:
+ again_fixed_trail_if_zero(ACS_RAW_VALUE, (uint16_t)PTR_CAST_16(n), _raw_zero);
+ case CS_RAW_32:
+ again_fixed_trail_if_zero(ACS_RAW_VALUE, (uint32_t)PTR_CAST_32(n), _raw_zero);
+ case ACS_RAW_VALUE:
+ _raw_zero:
+ push_variable_value(_raw, data, n, trail);
+
+ case CS_ARRAY_16:
+ start_container(_array, (uint16_t)PTR_CAST_16(n), CT_ARRAY_ITEM);
+ case CS_ARRAY_32:
+ /* FIXME security guard */
+ start_container(_array, (uint32_t)PTR_CAST_32(n), CT_ARRAY_ITEM);
+
+ case CS_MAP_16:
+ start_container(_map, (uint16_t)PTR_CAST_16(n), CT_MAP_KEY);
+ case CS_MAP_32:
+ /* FIXME security guard */
+ start_container(_map, (uint32_t)PTR_CAST_32(n), CT_MAP_KEY);
+
+ default:
+ goto _failed;
+ }
+ }
+
+_push:
+ if(top == 0) { goto _finish; }
+ c = &stack[top-1];
+ switch(c->ct) {
+ case CT_ARRAY_ITEM:
+ if(msgpack_unpack_callback(_array_item)(user, c->curr, &c->obj, obj) < 0) { goto _failed; }
+ if(++c->curr == c->count) {
+ obj = c->obj;
+ --top;
+ /*printf("stack pop %d\n", top);*/
+ goto _push;
+ }
+ goto _header_again;
+ case CT_MAP_KEY:
+ c->map_key = obj;
+ c->ct = CT_MAP_VALUE;
+ goto _header_again;
+ case CT_MAP_VALUE:
+ if(msgpack_unpack_callback(_map_item)(user, &c->obj, c->map_key, obj) < 0) { goto _failed; }
+ if(--c->count == 0) {
+ obj = c->obj;
+ --top;
+ /*printf("stack pop %d\n", top);*/
+ goto _push;
+ }
+ c->ct = CT_MAP_KEY;
+ goto _header_again;
+
+ default:
+ goto _failed;
+ }
+
+_header_again:
+ cs = CS_HEADER;
+ ++p;
+ } while(p != pe);
+ goto _out;
+
+
+_finish:
+ stack[0].obj = obj;
+ ++p;
+ ret = 1;
+ /*printf("-- finish --\n"); */
+ goto _end;
+
+_failed:
+ /*printf("** FAILED **\n"); */
+ ret = -1;
+ goto _end;
+
+_out:
+ ret = 0;
+ goto _end;
+
+_end:
+ ctx->cs = cs;
+ ctx->trail = trail;
+ ctx->top = top;
+ *off = p - (const unsigned char*)data;
+
+ return ret;
+}
+
+
+#undef msgpack_unpack_func
+#undef msgpack_unpack_callback
+#undef msgpack_unpack_struct
+#undef msgpack_unpack_object
+#undef msgpack_unpack_user
+
+#undef push_simple_value
+#undef push_fixed_value
+#undef push_variable_value
+#undef again_fixed_trail
+#undef again_fixed_trail_if_zero
+#undef start_container
+
+#undef NEXT_CS
+#undef PTR_CAST_8
+#undef PTR_CAST_16
+#undef PTR_CAST_32
+#undef PTR_CAST_64
+