4 local h = io.open("types.h", "w")
5 local c = io.open("types.c", "w")
6 local def = io.open("types.def", "r")
8 local function emit_h(str)
12 local function emit_c(str)
16 local function emit(fun, code)
18 emit_c(fun .. "\n" .. code)
22 local export_prefix = ""
23 local local_prefix = "__attribute__((unused)) static inline "
29 This file was automatically generated by Protogen.
30 DO NOT EDIT it manually. Instead, edit types.def and re-run protogen.
37 #ifndef _PROTOGEN_TYPES_H_
38 #define _PROTOGEN_TYPES_H_
41 #include <dragonnet/peer.h>
61 #include <dragonnet/send.h>
62 #include <dragonnet/recv.h>
65 #include <endian.h/endian.h>
77 ]] .. local_prefix .. [[void raw_write(Blob *buffer, const void *data, size_t len)
79 buffer->data = realloc(buffer->data, len + buffer->siz);
80 memcpy(&buffer->data[buffer->siz], data, len);
84 ]] .. local_prefix .. [[bool raw_read(Blob *buffer, void *data, size_t len)
89 if (buffer->siz < len) {
90 fprintf(stderr, "[warning] buffer exhausted (requested bytes: %lu, remaining bytes: %lu)\n", len, buffer->siz);
94 memcpy(data, buffer->data, len);
104 local existing_types = {}
105 local has_deallocator = {}
109 local base_vector_components = {"x", "y", "z", "w"}
110 local vector_components = {}
113 local components = {}
116 table.insert(components, base_vector_components[j])
119 vector_components[i] = components
124 local function emit_vector(type, l)
125 local name = "v" .. l .. type
126 local box = "aabb" .. l .. type
128 existing_types[name] = true
129 has_deallocator[name] = false
131 existing_types[box] = true
132 has_deallocator[box] = false
134 local typedef, equals, add, clamp, cmp, scale, mix, write, read, send, recv =
135 "", "", "", "", "", "", "", "", "", "", ""
137 typedef = typedef .. "\t" .. type .. " "
138 equals = equals .. "\treturn "
139 add = add .. "\treturn (" .. name .. ") {"
140 clamp = clamp .. "\treturn (" .. name .. ") {"
141 cmp = cmp .. "\tint i;\n"
142 scale = scale .. "\treturn (" .. name .. ") {"
143 mix = mix .. "\treturn (" .. name .. ") {"
145 for i, c in ipairs(vector_components[l]) do
156 .. "a." .. c .. " == "
164 .. "a." .. c .. " + "
173 .. "val." .. c .. ", "
174 .. "min." .. c .. ", "
175 .. "max." .. c .. ")" ..
182 .. "\tif ((i = " .. type .. "_cmp("
183 .. "&((const " .. name .. " *) a)->" .. c .. ", "
184 .. "&((const " .. name .. " *) b)->" .. c .. ")) != 0)"
185 .. "\n\t\treturn i;\n"
188 .. "v." .. c .. " * s" ..
205 .. "\t" .. type .. "_write(buffer, &val->" .. c .. ");\n"
208 .. "\tif (!" .. type .. "_read(buffer, &val->" .. c .. "))\n\t\treturn false;\n"
211 .. "\tif (!" .. type .. "_send(peer, " .. (last and "submit" or "false") .. ", &val->" .. c .. "))\n\t\treturn false;\n"
214 .. "\tif (!" .. type .. "_recv(peer, &val->" .. c .. "))\n\t\treturn false;\n"
217 emit_h("typedef struct {\n" .. typedef .. "} " .. name .. ";\n")
219 emit(export_prefix .. "bool " .. name .. "_equals(" .. name .. " a, " .. name .. " b)", "{\n" .. equals .. "}\n\n")
220 emit(export_prefix .. name .. " " .. name .. "_add(" .. name .. " a, " .. name .. " b)", "{\n" .. add .. "}\n\n")
221 emit(export_prefix .. name .. " " .. name .. "_clamp(" .. name .. " val, " .. name .. " min, " .. name .. " max)", "{\n" .. clamp .. "}\n\n")
222 emit(export_prefix .. "int " .. name .. "_cmp(const void *a, const void *b)", "{\n" .. cmp .. "\treturn 0;\n}\n\n")
223 emit(export_prefix .. name .. " " .. name .. "_scale(" .. name .. " v, " .. type .. " s)", "{\n" .. scale .. "}\n\n")
225 if type:sub(1, 1) == "f" then
226 emit(export_prefix .. name .. " " .. name .. "_mix(" .. name .. " a, " .. name .. " b, " .. type .. " f)", "{\n" .. mix .. "}\n\n")
229 emit(export_prefix .. "void " .. name .. "_write(Blob *buffer, " .. name .. " *val)", "{\n" .. write .. "}\n\n")
230 emit(export_prefix .. "bool " .. name .. "_read(Blob *buffer, " .. name .. " *val)", "{\n" .. read .. "\treturn true;\n}\n\n")
232 emit_c("#ifdef USE_DRAGONNET\n")
233 emit_c(local_prefix .. "bool " .. name .. "_send(DragonnetPeer *peer, bool submit, " .. name .. " *val)\n{\n" .. send .. "\treturn true;\n}\n\n")
234 emit_c(local_prefix .. "bool " .. name .. "_recv(DragonnetPeer *peer, " .. name .. " *val)\n{\n" .. recv .. "\treturn true;\n}\n")
239 emit_h("typedef struct {\n\t" .. name .. " min, max;\n} " .. box .. ";\n")
241 emit(export_prefix .. "void " .. box .. "_write(Blob *buffer, " .. box .. " *val)", "{\n\t" .. name .. "_write(buffer, &val->min);\n\t" .. name .. "_write(buffer, &val->max);\n}\n\n")
242 emit(export_prefix .. "bool " .. box .. "_read(Blob *buffer, " .. box .. " *val)", "{\n\tif (!" .. name .. "_read(buffer, &val->min))\n\t\treturn false;\n\tif (!" .. name .. "_read(buffer, &val->max))\n\t\treturn false;\n\treturn true;\n}\n\n")
244 emit_c("#ifdef USE_DRAGONNET\n")
245 emit_c(local_prefix .. "bool " .. box .. "_send(DragonnetPeer *peer, bool submit, " .. box .. " *val)\n{\n\tif (!" .. name .. "_send(peer, false, &val->min))\n\t\treturn false;\n\tif (!" .. name .. "_send(peer, submit, &val->max))\n\t\treturn false;\n\treturn true;\n}\n\n")
246 emit_c(local_prefix .. "bool " .. box .. "_recv(DragonnetPeer *peer, " .. box .. " *val)\n{\n\tif (!" .. name .. "_recv(peer, &val->min))\n\t\treturn false;\n\t if (!" .. name .. "_recv(peer, &val->max))\n\t\treturn false;\n\treturn true;\n}\n")
252 local function emit_numeric(class, bits, alias)
253 local name = class .. bits
255 existing_types[name] = true
256 has_deallocator[name] = false
258 emit_h("typedef " .. alias .. " " .. name .. ";\n")
260 emit(export_prefix .. name .. " " .. name .. "_min(" .. name .. " a, " .. name .. " b)", "{\n\treturn a < b ? a : b;\n}\n\n")
261 emit(export_prefix .. name .. " " .. name .. "_max(" .. name .. " a, " .. name .. " b)", "{\n\treturn a > b ? a : b;\n}\n\n")
262 emit(export_prefix .. name .. " " .. name .. "_clamp(" .. name .. " val, " .. name .. " min, " .. name .. " max)", "{\n\treturn val < min ? min : val > max ? max : val;\n}\n\n")
263 emit(export_prefix .. "int " .. name .. "_cmp(const void *a, const void *b)", "{\n\treturn\n\t\t*(const " .. name .. " *) a < *(const " .. name .. " *) b ? -1 :\n\t\t*(const " .. name .. " *) a > *(const " .. name .. " *) b ? +1 :\n\t\t0;\n}\n\n")
266 emit(export_prefix .. name .. " " .. name .. "_mix(" .. name .. " a, " .. name .. " b, " .. name .. " f)", "{\n\treturn (1.0 - f) * a + b * f;\n}\n\n")
269 emit(export_prefix .. "void " .. name .. "_write(Blob *buffer, " .. name .. " *val)", "{\n" .. (class == "u"
270 and "\t" .. name .. " be = htobe" .. bits .. "(*val);\n\traw_write(buffer, &be, sizeof be);\n"
271 or "\tu" .. bits .. "_write(buffer, (u" .. bits .. " *) val);\n"
273 emit(export_prefix .. "bool " .. name .. "_read(Blob *buffer, " .. name .. " *val)", "{\n" .. (class == "u"
274 and "\t" .. name .. " be;\n\tif (!raw_read(buffer, &be, sizeof be))\n\t\treturn false;\n\t*val = be" .. bits .. "toh(be);\n\treturn true;\n"
275 or "\treturn u" .. bits .. "_read(buffer, (u" .. bits .. " *) val);\n"
278 emit_c("#ifdef USE_DRAGONNET\n")
279 emit_c(local_prefix .. "bool " .. name .. "_send(DragonnetPeer *peer, bool submit, " .. name .. " *val)\n{\n" .. (class == "u"
280 and "\t" .. name .. " be = htobe" .. bits .. "(*val);\n\treturn dragonnet_send_raw(peer, submit, &be, sizeof be);\n"
281 or "\treturn u" .. bits .. "_send(peer, submit, (u" .. bits .. " *) val);\n"
283 emit_c(local_prefix .. "bool " .. name .. "_recv(DragonnetPeer *peer, " .. name .. " *val)\n{\n" .. (class == "u"
284 and "\t" .. name .. " be;\n\tif (!dragonnet_recv_raw(peer, &be, sizeof be))\n\t\treturn false;\n\t*val = be" .. bits .. "toh(be);\n\treturn true;\n"
285 or "\treturn u" .. bits .. "_recv(peer, (u" .. bits .. " *) val);\n"
297 local bytes = math.floor(2 ^ i)
298 local bits = 8 * bytes
300 emit_numeric("u", bits, "uint" .. bits .. "_t")
301 emit_numeric("s", bits, "int" .. bits .. "_t")
304 emit_numeric("f", bits, ({"float", "double"})[i - 1])
310 existing_types.String = true
311 has_deallocator.String = true
314 export_prefix .. "void String_free(String *val)", [[
324 export_prefix .. "void String_write(Blob *buffer, String *val)", [[
326 *val ? raw_write(buffer, *val, strlen(*val) + 1) : raw_write(buffer, "", 1);
333 export_prefix .. "bool String_read(Blob *buffer, String *val)", [[
335 String v = malloc(1 + (1 << 16));
338 for (u16 i = 0;; i++) {
339 if (!raw_read(buffer, &c, 1)) {
349 *val = realloc(v, strlen(v) + 1);
360 ]] .. local_prefix .. [[bool String_send(DragonnetPeer *peer, bool submit, String *val)
362 return *val ? dragonnet_send_raw(peer, submit, *val, strlen(*val) + 1) : dragonnet_send_raw(peer, submit, "", 1);
365 ]] .. local_prefix .. [[bool String_recv(DragonnetPeer *peer, String *val)
367 String v = malloc(1 + (1 << 16));
370 for (u16 i = 0;; i++) {
371 if (!dragonnet_recv_raw(peer, &c, 1)) {
381 *val = realloc(v, strlen(v) + 1);
394 existing_types.Blob = true
395 has_deallocator.Blob = true
398 export_prefix .. "void Blob_compress(Blob *buffer, Blob *val)", [[
400 buffer->siz = 8 + 2 + val->siz;
401 buffer->data = malloc(buffer->siz);
403 *(u64 *) buffer->data = val->siz;
410 s.avail_in = val->siz;
411 s.next_in = (Bytef *) val->data;
412 s.avail_out = buffer->siz - 8 + 1;
413 s.next_out = (Bytef *) buffer->data + 8;
415 deflateInit(&s, Z_BEST_COMPRESSION);
416 deflate(&s, Z_FINISH);
419 buffer->siz = s.total_out + 8;
426 export_prefix .. "void Blob_decompress(Blob *buffer, Blob *val)", [[
428 buffer->siz = *(u64 *) val->data;
429 buffer->data = malloc(buffer->siz);
436 s.avail_in = val->siz - 8;
437 s.next_in = val->data + 8;
438 s.avail_out = buffer->siz;
439 s.next_out = (Bytef *) buffer->data;
442 inflate(&s, Z_NO_FLUSH);
445 buffer->siz = s.total_out;
452 export_prefix .. "void Blob_shrink(Blob *val)", [[
454 val->data = realloc(val->data, val->siz);
461 export_prefix .. "void Blob_free(Blob *val)", [[
471 export_prefix .. "void Blob_write(Blob *buffer, Blob *val)", [[
473 u64_write(buffer, &val->siz);
474 raw_write(buffer, val->data, val->siz);
481 export_prefix .. "bool Blob_read(Blob *buffer, Blob *val)", [[
483 if (!u64_read(buffer, &val->siz))
486 if (!raw_read(buffer, val->data = malloc(val->siz), val->siz)) {
501 ]] .. local_prefix .. [[bool Blob_send(DragonnetPeer *peer, bool submit, Blob *val)
503 if (!u64_send(peer, false, &val->siz))
505 return dragonnet_send_raw(peer, submit, val->data, val->siz);
508 ]] .. local_prefix .. [[bool Blob_recv(DragonnetPeer *peer, Blob *val)
510 if (!u64_recv(peer, &val->siz))
513 if (!dragonnet_recv_raw(peer, val->data = malloc(val->siz), val->siz)) {
531 ]] .. local_prefix .. [[void raw_write_compressed(Blob *buffer, void *val, void (*val_write)(Blob *, void *))
533 Blob compressed, raw = {0};
534 val_write(&raw, val);
535 Blob_compress(&compressed, &raw);
536 Blob_write(buffer, &compressed);
538 Blob_free(&compressed);
542 ]] .. local_prefix .. [[bool raw_read_compressed(Blob *buffer, void *val, bool (*val_read)(Blob *, void *))
544 Blob compressed, raw = {0};
545 bool success = Blob_read(buffer, &compressed);
548 Blob_decompress(&raw, &compressed);
549 Blob raw_buffer = raw;
550 success = success && val_read(&raw_buffer, val);
553 Blob_free(&compressed);
560 ]] .. local_prefix .. [[bool raw_send_compressed(DragonnetPeer *peer, bool submit, void *val, void (*val_write)(Blob *, void *))
562 Blob compressed, raw = {0};
563 val_write(&raw, val);
564 Blob_compress(&compressed, &raw);
565 bool success = Blob_send(peer, submit, &compressed);
567 Blob_free(&compressed);
573 ]] .. local_prefix .. [[bool raw_recv_compressed(DragonnetPeer *peer, void *val, bool (*val_read)(Blob *, void *))
575 Blob compressed, raw = {0};
576 bool success = Blob_recv(peer, &compressed);
579 Blob_decompress(&raw, &compressed);
580 Blob raw_buffer = raw;
581 success = success && val_read(&raw_buffer, val);
584 Blob_free(&compressed);
594 local custom_types = {}
597 local function consume_name(name)
599 table.insert(custom_types, current_type)
605 current_type = {components = {}, component_names = {}}
607 current_type.flags = name:split(" ")
608 current_type.name = table.remove(current_type.flags, #current_type.flags)
610 if existing_types[current_type.name] then
611 error("redeclaration of type " .. current_type.name)
614 existing_types[current_type.name] = true
615 has_deallocator[current_type.name] = false
619 local function consume_comp(comp)
620 if not current_type then
621 error("component without a type: " .. comp)
626 component.flags = comp:split(" ")
627 component.name = table.remove(component.flags, #component.flags)
628 component.type = table.remove(component.flags, #component.flags)
630 component.full_name = current_type.name .. "." .. component.name
633 local met_brace = false
634 local brace_level = 0
636 for i = 1, #component.type do
637 local c = component.type:sub(i, i)
641 if not met_brace then
646 brace_level = brace_level + 1
648 if brace_level == 1 then
649 table.insert(component.array, "")
654 brace_level = brace_level - 1
656 if brace_level < 0 then
657 error("missing [ in " .. component.full_name)
658 elseif brace_level > 0 then
661 elseif not met_brace then
662 base_type = base_type .. c
663 elseif brace_level == 1 then
665 elseif brace_level == 0 then
666 error("invalid character " .. c .. " outside of braces in " .. component.full_name)
670 component.array[#component.array] = component.array[#component.array] .. c
674 component.type = base_type
676 if brace_level > 0 then
677 error("missing ] in " .. component.full_name)
680 if not existing_types[component.type] then
681 error("type " .. component.type .. " of " .. component.full_name .. " does not exist ")
684 has_deallocator[current_type.name] = has_deallocator[current_type.name] or has_deallocator[component.type]
686 if current_type.component_names[component.name] then
687 error("component " .. component.full_name .. " redeclared")
690 current_type.component_names[component.name] = true
692 table.insert(current_type.components, component)
696 for l in def:lines() do
697 local f = l:sub(1, 1)
700 consume_comp(l:sub(2, #l))
711 local dragonnet_types_h = ""
712 local dragonnet_types_c = ""
714 for _, t in ipairs(custom_types) do
717 for _, f in pairs(t.flags) do
721 error("invalid flag " .. f .. " for " .. t.name)
725 local typedef, free, write, read, send, recv =
726 "", "", "", "", "", ""
728 for ic, c in ipairs(t.components) do
730 .. "\t" .. c.type .. " " .. c.name
734 .. "[" .. table.concat(c.array, "][") .. "]"
740 local compressed = false
742 for _, f in pairs(c.flags) do
743 if f == "compressed" then
746 error("invalid flag " .. f .. " for " .. c.full_name)
753 local array_submit = ""
756 for ia, a in ipairs(c.array) do
759 loop = loop .. indent .. "for (int " .. it .. " = 0; " .. it .. " < " .. a .. "; " .. it .. "++)\n"
760 indent = indent .. "\t"
762 index = index .. "[" .. it .. "]"
764 array_submit = array_submit .. " && " .. it .. " == " .. a
768 local addr = "&val->" .. c.name .. index
770 if has_deallocator[c.type] then
772 .. loop .. indent .. c.type .. "_free(" .. addr .. ");\n"
776 .. loop .. indent .. (compressed
777 and "raw_write_compressed(buffer, " .. addr .. ", (void *) &" .. c.type .. "_write);\n"
778 or c.type .. "_write(buffer, " .. addr .. ");\n"
782 .. loop .. indent .. "if (!" .. (compressed
783 and "raw_read_compressed(buffer, " .. addr .. ", (void *) &" .. c.type .. "_read)"
784 or c.type .. "_read(buffer, " .. addr .. ")"
785 ) .. ")\n" .. indent .. "\treturn false;\n"
787 local submit = ic == #t.components and "submit" .. array_submit or "false"
789 .. loop .. indent .. "if (!" .. (compressed
790 and "raw_send_compressed(peer, " .. submit .. ", " .. addr .. ", (void *) &" .. c.type .. "_write)"
791 or c.type .. "_send(peer, " .. submit .. ", " .. addr .. ")"
792 ) .. ")\n" .. indent .. "\treturn false;\n"
795 .. loop .. indent .. "if (!" .. (compressed
796 and "raw_recv_compressed(peer, " .. addr .. ", (void *) &" .. c.type .. "_read)"
797 or c.type .. "_recv(peer, " .. addr .. ")"
798 ) .. ")\n" .. indent .. "\treturn false;\n"
801 emit_h("typedef struct {\n" .. typedef .. "} " .. t.name .. ";\n")
803 if has_deallocator[t.name] then
804 emit(export_prefix .. "void " .. t.name .. "_free(" .. t.name .. " *val)", "{\n" .. free .. "}\n\n")
807 emit(export_prefix .. "void " .. t.name .. "_write(Blob *buffer, " .. t.name .. " *val)", "{\n" .. write .. "}\n\n")
808 emit(export_prefix .. "bool " .. t.name .. "_read(Blob *buffer, " .. t.name .. " *val)", "{\n" .. read .. "\treturn true;\n}\n\n")
811 emit_h("#ifdef USE_DRAGONNET\n")
814 emit_c("#ifdef USE_DRAGONNET\n")
816 emit_c(local_prefix .. "bool " .. t.name .. "_send(DragonnetPeer *peer, bool submit, " .. t.name .. " *val)\n{\n" .. send .. "\treturn true;\n}\n\n")
817 emit_c(local_prefix .. "bool " .. t.name .. "_recv(DragonnetPeer *peer, " .. t.name .. " *val)\n{\n" .. recv .. "\treturn true;\n}\n")
821 emit_c("static DragonnetTypeId " .. t.name .. "_type_id = DRAGONNET_TYPE_" .. t.name .. ";\n")
823 emit("bool dragonnet_peer_send_" .. t.name .. "(DragonnetPeer *peer, " .. t.name .. " *val)", "{\n\tpthread_mutex_lock(&peer->mtx);\n\tif (!u16_send(peer, false, &" .. t.name .. "_type_id))\n\t\treturn false;\n\tif (!" .. t.name .. "_send(peer, true, val))\n\t\treturn false;\n\treturn true;\n}\n")
826 dragonnet_types_h = dragonnet_types_h
827 .. "\tDRAGONNET_TYPE_" .. t.name .. ",\n"
829 dragonnet_types_c = dragonnet_types_c
830 .. "\t{\n\t\t.siz = sizeof(" .. t.name .. "),\n\t\t.deserialize = (void *) &" .. t.name .. "_recv,\n\t\t.free = " .. (has_deallocator[t.name] and "(void *) &" .. t.name .. "_free" or "NULL") .. ",\n\t},\n"
838 emit_h("#ifdef USE_DRAGONNET\n")
839 emit_h("typedef enum {\n" .. dragonnet_types_h .. "\tDRAGONNET_NUM_TYPES\n} DragonnetTypeNum;\n")
842 emit_c("#ifdef USE_DRAGONNET\n")
843 emit_c("DragonnetTypeId dragonnet_num_types = DRAGONNET_NUM_TYPES;\nDragonnetType dragonnet_types[] = {\n" .. dragonnet_types_c .. "};\n")