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 struct_prefix = "__attribute__((packed)) "
23 local export_prefix = ""
24 local local_prefix = "__attribute__((unused)) static inline "
30 This file was automatically generated by Protogen.
31 DO NOT EDIT it manually. Instead, edit types.def and re-run protogen.
38 #ifndef _PROTOGEN_TYPES_H_
39 #define _PROTOGEN_TYPES_H_
42 #include <dragonnet/peer.h>
54 } ]] .. struct_prefix .. [[Blob;
62 #include <dragonnet/send.h>
63 #include <dragonnet/recv.h>
66 #include <endian.h/endian.h>
78 ]] .. local_prefix .. [[void raw_write(Blob *buffer, const void *data, size_t len)
80 buffer->data = realloc(buffer->data, len + buffer->siz);
81 memcpy(&buffer->data[buffer->siz], data, len);
85 ]] .. local_prefix .. [[bool raw_read(Blob *buffer, void *data, size_t len)
90 if (buffer->siz < len) {
91 fprintf(stderr, "[warning] buffer exhausted (requested bytes: %lu, remaining bytes: %lu)\n", len, buffer->siz);
95 memcpy(data, buffer->data, len);
105 local existing_types = {}
106 local has_deallocator = {}
110 local base_vector_components = {"x", "y", "z", "w"}
111 local vector_components = {}
114 local components = {}
117 table.insert(components, base_vector_components[j])
120 vector_components[i] = components
125 local function emit_vector(type, l)
126 local name = "v" .. l .. type
127 local box = "aabb" .. l .. type
129 existing_types[name] = true
130 has_deallocator[name] = false
132 existing_types[box] = true
133 has_deallocator[box] = false
135 local typedef, equals, add, sub, clamp, cmp, scale, mix, write, read, send, recv =
136 "", "", "", "", "", "", "", "", "", "", "", ""
138 typedef = typedef .. "\t" .. type .. " "
139 equals = equals .. "\treturn "
140 add = add .. "\treturn (" .. name .. ") {"
141 sub = sub .. "\treturn (" .. name .. ") {"
142 clamp = clamp .. "\treturn (" .. name .. ") {"
143 cmp = cmp .. "\tint i;\n"
144 scale = scale .. "\treturn (" .. name .. ") {"
145 mix = mix .. "\treturn (" .. name .. ") {"
147 for i, c in ipairs(vector_components[l]) do
158 .. "a." .. c .. " == "
166 .. "a." .. c .. " + "
174 .. "a." .. c .. " - "
183 .. "val." .. c .. ", "
184 .. "min." .. c .. ", "
185 .. "max." .. c .. ")" ..
192 .. "\tif ((i = " .. type .. "_cmp("
193 .. "&((const " .. name .. " *) a)->" .. c .. ", "
194 .. "&((const " .. name .. " *) b)->" .. c .. ")) != 0)"
195 .. "\n\t\treturn i;\n"
198 .. "v." .. c .. " * s" ..
215 .. "\t" .. type .. "_write(buffer, &val->" .. c .. ");\n"
218 .. "\tif (!" .. type .. "_read(buffer, &val->" .. c .. "))\n\t\treturn false;\n"
221 .. "\tif (!" .. type .. "_send(peer, " .. (last and "submit" or "false") .. ", &val->" .. c .. "))\n\t\treturn false;\n"
224 .. "\tif (!" .. type .. "_recv(peer, &val->" .. c .. "))\n\t\treturn false;\n"
227 emit_h("typedef struct {\n" .. typedef .. "} " .. struct_prefix .. name .. ";\n")
229 emit(export_prefix .. "bool " .. name .. "_equals(" .. name .. " a, " .. name .. " b)", "{\n" .. equals .. "}\n\n")
230 emit(export_prefix .. name .. " " .. name .. "_add(" .. name .. " a, " .. name .. " b)", "{\n" .. add .. "}\n\n")
231 emit(export_prefix .. name .. " " .. name .. "_sub(" .. name .. " a, " .. name .. " b)", "{\n" .. add .. "}\n\n")
232 emit(export_prefix .. name .. " " .. name .. "_clamp(" .. name .. " val, " .. name .. " min, " .. name .. " max)", "{\n" .. clamp .. "}\n\n")
233 emit(export_prefix .. "int " .. name .. "_cmp(const void *a, const void *b)", "{\n" .. cmp .. "\treturn 0;\n}\n\n")
234 emit(export_prefix .. name .. " " .. name .. "_scale(" .. name .. " v, " .. type .. " s)", "{\n" .. scale .. "}\n\n")
236 if type:sub(1, 1) == "f" then
237 emit(export_prefix .. name .. " " .. name .. "_mix(" .. name .. " a, " .. name .. " b, " .. type .. " f)", "{\n" .. mix .. "}\n\n")
240 emit(export_prefix .. "void " .. name .. "_write(Blob *buffer, " .. name .. " *val)", "{\n" .. write .. "}\n\n")
241 emit(export_prefix .. "bool " .. name .. "_read(Blob *buffer, " .. name .. " *val)", "{\n" .. read .. "\treturn true;\n}\n\n")
243 emit_c("#ifdef USE_DRAGONNET\n")
244 emit_c(local_prefix .. "bool " .. name .. "_send(DragonnetPeer *peer, bool submit, " .. name .. " *val)\n{\n" .. send .. "\treturn true;\n}\n\n")
245 emit_c(local_prefix .. "bool " .. name .. "_recv(DragonnetPeer *peer, " .. name .. " *val)\n{\n" .. recv .. "\treturn true;\n}\n")
250 emit_h("typedef struct {\n\t" .. name .. " min, max;\n} " .. struct_prefix .. box .. ";\n")
252 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")
253 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")
255 emit_c("#ifdef USE_DRAGONNET\n")
256 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")
257 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")
263 local function emit_numeric(class, bits, alias)
264 local name = class .. bits
266 existing_types[name] = true
267 has_deallocator[name] = false
269 emit_h("typedef " .. alias .. " " .. name .. ";\n")
271 emit(export_prefix .. name .. " " .. name .. "_min(" .. name .. " a, " .. name .. " b)", "{\n\treturn a < b ? a : b;\n}\n\n")
272 emit(export_prefix .. name .. " " .. name .. "_max(" .. name .. " a, " .. name .. " b)", "{\n\treturn a > b ? a : b;\n}\n\n")
273 emit(export_prefix .. name .. " " .. name .. "_clamp(" .. name .. " val, " .. name .. " min, " .. name .. " max)", "{\n\treturn val < min ? min : val > max ? max : val;\n}\n\n")
274 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")
277 emit(export_prefix .. name .. " " .. name .. "_mix(" .. name .. " a, " .. name .. " b, " .. name .. " f)", "{\n\treturn (1.0 - f) * a + b * f;\n}\n\n")
280 emit(export_prefix .. "void " .. name .. "_write(Blob *buffer, " .. name .. " *val)", "{\n" .. (class == "u"
281 and "\t" .. name .. " be = htobe" .. bits .. "(*val);\n\traw_write(buffer, &be, sizeof be);\n"
282 or "\tu" .. bits .. "_write(buffer, (u" .. bits .. " *) val);\n"
284 emit(export_prefix .. "bool " .. name .. "_read(Blob *buffer, " .. name .. " *val)", "{\n" .. (class == "u"
285 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"
286 or "\treturn u" .. bits .. "_read(buffer, (u" .. bits .. " *) val);\n"
289 emit_c("#ifdef USE_DRAGONNET\n")
290 emit_c(local_prefix .. "bool " .. name .. "_send(DragonnetPeer *peer, bool submit, " .. name .. " *val)\n{\n" .. (class == "u"
291 and "\t" .. name .. " be = htobe" .. bits .. "(*val);\n\treturn dragonnet_send_raw(peer, submit, &be, sizeof be);\n"
292 or "\treturn u" .. bits .. "_send(peer, submit, (u" .. bits .. " *) val);\n"
294 emit_c(local_prefix .. "bool " .. name .. "_recv(DragonnetPeer *peer, " .. name .. " *val)\n{\n" .. (class == "u"
295 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"
296 or "\treturn u" .. bits .. "_recv(peer, (u" .. bits .. " *) val);\n"
308 local bytes = math.floor(2 ^ i)
309 local bits = 8 * bytes
311 emit_numeric("u", bits, "uint" .. bits .. "_t")
312 emit_numeric("s", bits, "int" .. bits .. "_t")
315 emit_numeric("f", bits, ({"float", "double"})[i - 1])
321 existing_types.String = true
322 has_deallocator.String = true
325 export_prefix .. "void String_free(String *val)", [[
335 export_prefix .. "void String_write(Blob *buffer, String *val)", [[
337 *val ? raw_write(buffer, *val, strlen(*val) + 1) : raw_write(buffer, "", 1);
344 export_prefix .. "bool String_read(Blob *buffer, String *val)", [[
346 String v = malloc(1 + (1 << 16));
349 for (u16 i = 0;; i++) {
350 if (!raw_read(buffer, &c, 1)) {
360 *val = realloc(v, strlen(v) + 1);
371 ]] .. local_prefix .. [[bool String_send(DragonnetPeer *peer, bool submit, String *val)
373 return *val ? dragonnet_send_raw(peer, submit, *val, strlen(*val) + 1) : dragonnet_send_raw(peer, submit, "", 1);
376 ]] .. local_prefix .. [[bool String_recv(DragonnetPeer *peer, String *val)
378 String v = malloc(1 + (1 << 16));
381 for (u16 i = 0;; i++) {
382 if (!dragonnet_recv_raw(peer, &c, 1)) {
392 *val = realloc(v, strlen(v) + 1);
405 existing_types.Blob = true
406 has_deallocator.Blob = true
409 export_prefix .. "void Blob_compress(Blob *buffer, Blob *val)", [[
411 buffer->siz = 8 + 2 + val->siz;
412 buffer->data = malloc(buffer->siz);
414 *(u64 *) buffer->data = val->siz;
421 s.avail_in = val->siz;
422 s.next_in = (Bytef *) val->data;
423 s.avail_out = buffer->siz - 8 + 1;
424 s.next_out = (Bytef *) buffer->data + 8;
426 deflateInit(&s, Z_BEST_COMPRESSION);
427 deflate(&s, Z_FINISH);
430 buffer->siz = s.total_out + 8;
437 export_prefix .. "void Blob_decompress(Blob *buffer, Blob *val)", [[
439 buffer->siz = *(u64 *) val->data;
440 buffer->data = malloc(buffer->siz);
447 s.avail_in = val->siz - 8;
448 s.next_in = val->data + 8;
449 s.avail_out = buffer->siz;
450 s.next_out = (Bytef *) buffer->data;
453 inflate(&s, Z_NO_FLUSH);
456 buffer->siz = s.total_out;
463 export_prefix .. "void Blob_shrink(Blob *val)", [[
465 val->data = realloc(val->data, val->siz);
472 export_prefix .. "void Blob_free(Blob *val)", [[
482 export_prefix .. "void Blob_write(Blob *buffer, Blob *val)", [[
484 u64_write(buffer, &val->siz);
485 raw_write(buffer, val->data, val->siz);
492 export_prefix .. "bool Blob_read(Blob *buffer, Blob *val)", [[
494 if (!u64_read(buffer, &val->siz))
497 if (!raw_read(buffer, val->data = malloc(val->siz), val->siz)) {
512 ]] .. local_prefix .. [[bool Blob_send(DragonnetPeer *peer, bool submit, Blob *val)
514 if (!u64_send(peer, false, &val->siz))
516 return dragonnet_send_raw(peer, submit, val->data, val->siz);
519 ]] .. local_prefix .. [[bool Blob_recv(DragonnetPeer *peer, Blob *val)
521 if (!u64_recv(peer, &val->siz))
524 if (!dragonnet_recv_raw(peer, val->data = malloc(val->siz), val->siz)) {
542 ]] .. local_prefix .. [[void raw_write_compressed(Blob *buffer, void *val, void (*val_write)(Blob *, void *))
544 Blob compressed, raw = {0};
545 val_write(&raw, val);
546 Blob_compress(&compressed, &raw);
547 Blob_write(buffer, &compressed);
549 Blob_free(&compressed);
553 ]] .. local_prefix .. [[bool raw_read_compressed(Blob *buffer, void *val, bool (*val_read)(Blob *, void *))
555 Blob compressed, raw = {0};
556 bool success = Blob_read(buffer, &compressed);
559 Blob_decompress(&raw, &compressed);
560 Blob raw_buffer = raw;
561 success = success && val_read(&raw_buffer, val);
564 Blob_free(&compressed);
571 ]] .. local_prefix .. [[bool raw_send_compressed(DragonnetPeer *peer, bool submit, void *val, void (*val_write)(Blob *, void *))
573 Blob compressed, raw = {0};
574 val_write(&raw, val);
575 Blob_compress(&compressed, &raw);
576 bool success = Blob_send(peer, submit, &compressed);
578 Blob_free(&compressed);
584 ]] .. local_prefix .. [[bool raw_recv_compressed(DragonnetPeer *peer, void *val, bool (*val_read)(Blob *, void *))
586 Blob compressed, raw = {0};
587 bool success = Blob_recv(peer, &compressed);
590 Blob_decompress(&raw, &compressed);
591 Blob raw_buffer = raw;
592 success = success && val_read(&raw_buffer, val);
595 Blob_free(&compressed);
605 local custom_types = {}
608 local function consume_name(name)
610 table.insert(custom_types, current_type)
616 current_type = {components = {}, component_names = {}}
618 current_type.flags = name:split(" ")
619 current_type.name = table.remove(current_type.flags, #current_type.flags)
621 if existing_types[current_type.name] then
622 error("redeclaration of type " .. current_type.name)
625 existing_types[current_type.name] = true
626 has_deallocator[current_type.name] = false
630 local function consume_comp(comp)
631 if not current_type then
632 error("component without a type: " .. comp)
637 component.flags = comp:split(" ")
638 component.name = table.remove(component.flags, #component.flags)
639 component.type = table.remove(component.flags, #component.flags)
641 component.full_name = current_type.name .. "." .. component.name
644 local met_brace = false
645 local brace_level = 0
647 for i = 1, #component.type do
648 local c = component.type:sub(i, i)
652 if not met_brace then
657 brace_level = brace_level + 1
659 if brace_level == 1 then
660 table.insert(component.array, "")
665 brace_level = brace_level - 1
667 if brace_level < 0 then
668 error("missing [ in " .. component.full_name)
669 elseif brace_level > 0 then
672 elseif not met_brace then
673 base_type = base_type .. c
674 elseif brace_level == 1 then
676 elseif brace_level == 0 then
677 error("invalid character " .. c .. " outside of braces in " .. component.full_name)
681 component.array[#component.array] = component.array[#component.array] .. c
685 component.type = base_type
687 if brace_level > 0 then
688 error("missing ] in " .. component.full_name)
691 if not existing_types[component.type] then
692 error("type " .. component.type .. " of " .. component.full_name .. " does not exist ")
695 has_deallocator[current_type.name] = has_deallocator[current_type.name] or has_deallocator[component.type]
697 if current_type.component_names[component.name] then
698 error("component " .. component.full_name .. " redeclared")
701 current_type.component_names[component.name] = true
703 table.insert(current_type.components, component)
707 for l in def:lines() do
708 local f = l:sub(1, 1)
711 consume_comp(l:sub(2, #l))
722 local dragonnet_types_h = ""
723 local dragonnet_types_c = ""
725 for _, t in ipairs(custom_types) do
728 for _, f in pairs(t.flags) do
732 error("invalid flag " .. f .. " for " .. t.name)
736 local typedef, free, write, read, send, recv =
737 "", "", "", "", "", ""
739 for ic, c in ipairs(t.components) do
741 .. "\t" .. c.type .. " " .. c.name
745 .. "[" .. table.concat(c.array, "][") .. "]"
751 local compressed = false
753 for _, f in pairs(c.flags) do
754 if f == "compressed" then
757 error("invalid flag " .. f .. " for " .. c.full_name)
764 local array_submit = ""
767 for ia, a in ipairs(c.array) do
770 loop = loop .. indent .. "for (int " .. it .. " = 0; " .. it .. " < " .. a .. "; " .. it .. "++)\n"
771 indent = indent .. "\t"
773 index = index .. "[" .. it .. "]"
775 array_submit = array_submit .. " && " .. it .. " == " .. a
779 local addr = "&val->" .. c.name .. index
781 if has_deallocator[c.type] then
783 .. loop .. indent .. c.type .. "_free(" .. addr .. ");\n"
787 .. loop .. indent .. (compressed
788 and "raw_write_compressed(buffer, " .. addr .. ", (void *) &" .. c.type .. "_write);\n"
789 or c.type .. "_write(buffer, " .. addr .. ");\n"
793 .. loop .. indent .. "if (!" .. (compressed
794 and "raw_read_compressed(buffer, " .. addr .. ", (void *) &" .. c.type .. "_read)"
795 or c.type .. "_read(buffer, " .. addr .. ")"
796 ) .. ")\n" .. indent .. "\treturn false;\n"
798 local submit = ic == #t.components and "submit" .. array_submit or "false"
800 .. loop .. indent .. "if (!" .. (compressed
801 and "raw_send_compressed(peer, " .. submit .. ", " .. addr .. ", (void *) &" .. c.type .. "_write)"
802 or c.type .. "_send(peer, " .. submit .. ", " .. addr .. ")"
803 ) .. ")\n" .. indent .. "\treturn false;\n"
806 .. loop .. indent .. "if (!" .. (compressed
807 and "raw_recv_compressed(peer, " .. addr .. ", (void *) &" .. c.type .. "_read)"
808 or c.type .. "_recv(peer, " .. addr .. ")"
809 ) .. ")\n" .. indent .. "\treturn false;\n"
812 emit_h("typedef struct {\n" .. typedef .. "} " .. struct_prefix .. t.name .. ";\n")
814 if has_deallocator[t.name] then
815 emit(export_prefix .. "void " .. t.name .. "_free(" .. t.name .. " *val)", "{\n" .. free .. "}\n\n")
818 emit(export_prefix .. "void " .. t.name .. "_write(Blob *buffer, " .. t.name .. " *val)", "{\n" .. write .. "}\n\n")
819 emit(export_prefix .. "bool " .. t.name .. "_read(Blob *buffer, " .. t.name .. " *val)", "{\n" .. read .. "\treturn true;\n}\n\n")
822 emit_h("#ifdef USE_DRAGONNET\n")
825 emit_c("#ifdef USE_DRAGONNET\n")
827 emit_c(local_prefix .. "bool " .. t.name .. "_send(DragonnetPeer *peer, bool submit, " .. t.name .. " *val)\n{\n" .. send .. "\treturn true;\n}\n\n")
828 emit_c(local_prefix .. "bool " .. t.name .. "_recv(DragonnetPeer *peer, " .. t.name .. " *val)\n{\n" .. recv .. "\treturn true;\n}\n")
832 emit_c("static DragonnetTypeId " .. t.name .. "_type_id = DRAGONNET_TYPE_" .. t.name .. ";\n")
834 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")
837 dragonnet_types_h = dragonnet_types_h
838 .. "\tDRAGONNET_TYPE_" .. t.name .. ",\n"
840 dragonnet_types_c = dragonnet_types_c
841 .. "\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"
849 emit_h("#ifdef USE_DRAGONNET\n")
850 emit_h("typedef enum {\n" .. dragonnet_types_h .. "\tDRAGONNET_NUM_TYPES\n} DragonnetTypeNum;\n")
853 emit_c("#ifdef USE_DRAGONNET\n")
854 emit_c("DragonnetTypeId dragonnet_num_types = DRAGONNET_NUM_TYPES;\nDragonnetType dragonnet_types[] = {\n" .. dragonnet_types_c .. "};\n")