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 Dragontype.
30 DO NOT EDIT it manually. Instead, edit types.def and re-run dragontype typegen.
37 #ifndef _DRAGONTYPE_TYPES_H_
38 #define _DRAGONTYPE_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)
86 if (buffer->siz < len) {
87 fprintf(stderr, "warning: buffer exhausted (requested bytes: %lu, remaining bytes: %lu)\n", len, buffer->siz);
91 memcpy(data, buffer->data, len);
101 local existing_types = {}
102 local has_deallocator = {}
106 local base_vector_components = {"x", "y", "z", "w"}
107 local vector_components = {}
110 local components = {}
113 table.insert(components, base_vector_components[j])
116 vector_components[i] = components
121 local function emit_vector(type, l)
122 local name = "v" .. l .. type
123 local box = "aabb" .. l .. type
125 existing_types[name] = true
126 has_deallocator[name] = false
128 local typedef, equals, add, clamp, mix, write, read, send, recv =
129 "", "", "", "", "", "", "", "", ""
131 typedef = typedef .. "\t" .. type .. " "
132 equals = equals .. "\treturn "
133 add = add .. "\treturn (" .. name .. ") {"
134 clamp = clamp .. "\treturn (" .. name .. ") {"
135 mix = mix .. "\treturn (" .. name .. ") {"
137 for i, c in ipairs(vector_components[l]) do
148 .. "a." .. c .. " == "
156 .. "a." .. c .. " + "
165 .. "val." .. c .. ", "
166 .. "min." .. c .. ", "
167 .. "max." .. c .. ")" ..
184 .. "\t" .. type .. "_write(buffer, &val->" .. c .. ");\n"
187 .. "\tif (! " .. type .. "_read(buffer, &val->" .. c .. "))\n\t\treturn false;\n"
190 .. "\tif (! " .. type .. "_send(peer, " .. (last and "submit" or "false") .. ", &val->" .. c .. "))\n\t\treturn false;\n"
193 .. "\tif (! " .. type .. "_recv(peer, &val->" .. c .. "))\n\t\treturn false;\n"
196 emit_h("typedef struct {\n" .. typedef .. "} " .. name .. ";\n")
198 emit(export_prefix .. "bool " .. name .. "_equals(" .. name .. " a, " .. name .. " b)", "{\n" .. equals .. "}\n\n")
199 emit(export_prefix .. name .. " " .. name .. "_add(" .. name .. " a, " .. name .. " b)", "{\n" .. add .. "}\n\n")
200 emit(export_prefix .. name .. " " .. name .. "_clamp(" .. name .. " val, " .. name .. " min, " .. name .. " max)", "{\n" .. clamp .. "}\n\n")
202 if type:sub(1, 1) == "f" then
203 emit(export_prefix .. name .. " " .. name .. "_mix(" .. name .. " a, " .. name .. " b, " .. type .. " f)", "{\n" .. mix .. "}\n\n")
206 emit(export_prefix .. "void " .. name .. "_write(Blob *buffer, " .. name .. " *val)", "{\n" .. write .. "}\n\n")
207 emit(export_prefix .. "bool " .. name .. "_read(Blob *buffer, " .. name .. " *val)", "{\n" .. read .. "\treturn true;\n}\n\n")
209 emit_c("#ifdef USE_DRAGONNET\n")
210 emit_c(local_prefix .. "bool " .. name .. "_send(DragonnetPeer *peer, bool submit, " .. name .. " *val)\n{\n" .. send .. "\treturn true;\n}\n\n")
211 emit_c(local_prefix .. "bool " .. name .. "_recv(DragonnetPeer *peer, " .. name .. " *val)\n{\n" .. recv .. "\treturn true;\n}\n")
216 emit_h("typedef struct {\n\t" .. name .. " min, max;\n} " .. box .. ";\n")
218 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")
219 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")
221 emit_c("#ifdef USE_DRAGONNET\n")
222 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")
223 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")
229 local function emit_numeric(class, bits, alias)
230 local name = class .. bits
232 existing_types[name] = true
233 has_deallocator[name] = false
235 emit_h("typedef " .. alias .. " " .. name .. ";\n")
237 emit(export_prefix .. name .. " " .. name .. "_min(" .. name .. " a, " .. name .. " b)", "{\n\treturn a < b ? a : b;\n}\n\n")
238 emit(export_prefix .. name .. " " .. name .. "_max(" .. name .. " a, " .. name .. " b)", "{\n\treturn a > b ? a : b;\n}\n\n")
239 emit(export_prefix .. name .. " " .. name .. "_clamp(" .. name .. " val, " .. name .. " min, " .. name .. " max)", "{\n\treturn val < min ? min : val > max ? max : val;\n}\n\n")
242 emit(export_prefix .. name .. " " .. name .. "_mix(" .. name .. " a, " .. name .. " b, " .. name .. " f)", "{\n\treturn (1.0 - f) * a + b * f;\n}\n\n")
245 emit(export_prefix .. "void " .. name .. "_write(Blob *buffer, " .. name .. " *val)", "{\n" .. (class == "u"
246 and "\t" .. name .. " be = htobe" .. bits .. "(*val);\n\traw_write(buffer, &be, sizeof be);\n"
247 or "\tu" .. bits .. "_write(buffer, (u" .. bits .. " *) val);\n"
249 emit(export_prefix .. "bool " .. name .. "_read(Blob *buffer, " .. name .. " *val)", "{\n" .. (class == "u"
250 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"
251 or "\treturn u" .. bits .. "_read(buffer, (u" .. bits .. " *) val);\n"
254 emit_c("#ifdef USE_DRAGONNET\n")
255 emit_c(local_prefix .. "bool " .. name .. "_send(DragonnetPeer *peer, bool submit, " .. name .. " *val)\n{\n" .. (class == "u"
256 and "\t" .. name .. " be = htobe" .. bits .. "(*val);\n\treturn dragonnet_send_raw(peer, submit, &be, sizeof be);\n"
257 or "\treturn u" .. bits .. "_send(peer, submit, (u" .. bits .. " *) val);\n"
259 emit_c(local_prefix .. "bool " .. name .. "_recv(DragonnetPeer *peer, " .. name .. " *val)\n{\n" .. (class == "u"
260 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"
261 or "\treturn u" .. bits .. "_recv(peer, (u" .. bits .. " *) val);\n"
273 local bytes = math.floor(2 ^ i)
274 local bits = 8 * bytes
276 emit_numeric("u", bits, "uint" .. bits .. "_t")
277 emit_numeric("s", bits, "int" .. bits .. "_t")
280 emit_numeric("f", bits, ({"float", "double"})[i - 1])
286 existing_types.String = true
287 has_deallocator.String = true
290 export_prefix .. "void String_free(String *val)", [[
300 export_prefix .. "void String_write(Blob *buffer, String *val)", [[
302 raw_write(buffer, *val, strlen(*val) + 1);
309 export_prefix .. "bool String_read(Blob *buffer, String *val)", [[
311 String v = malloc(1 + (1 << 16));
314 for (u16 i = 0;; i++) {
315 if (! raw_read(buffer, &c, 1)) {
325 *val = realloc(v, strlen(v) + 1);
336 ]] .. local_prefix .. [[bool String_send(DragonnetPeer *peer, bool submit, String *val)
338 return dragonnet_send_raw(peer, submit, *val, strlen(*val) + 1);
341 ]] .. local_prefix .. [[bool String_recv(DragonnetPeer *peer, String *val)
343 String v = malloc(1 + (1 << 16));
346 for (u16 i = 0;; i++) {
347 if (! dragonnet_recv_raw(peer, &c, 1)) {
357 *val = realloc(v, strlen(v) + 1);
370 existing_types.Blob = true
371 has_deallocator.Blob = true
374 export_prefix .. "void Blob_compress(Blob *buffer, Blob *val)", [[
376 buffer->siz = 8 + 2 + val->siz;
377 buffer->data = malloc(buffer->siz);
379 *(u64 *) buffer->data = val->siz;
386 s.avail_in = val->siz;
387 s.next_in = (Bytef *) val->data;
388 s.avail_out = buffer->siz - 8 + 1;
389 s.next_out = (Bytef *) buffer->data + 8;
391 deflateInit(&s, Z_BEST_COMPRESSION);
392 deflate(&s, Z_FINISH);
395 buffer->siz = s.total_out + 8;
402 export_prefix .. "void Blob_decompress(Blob *buffer, Blob *val)", [[
404 buffer->siz = *(u64 *) val->data;
405 buffer->data = malloc(buffer->siz);
412 s.avail_in = val->siz - 8;
413 s.next_in = val->data + 8;
414 s.avail_out = buffer->siz;
415 s.next_out = (Bytef *) buffer->data;
418 inflate(&s, Z_NO_FLUSH);
421 buffer->siz = s.total_out;
428 export_prefix .. "void Blob_shrink(Blob *val)", [[
430 val->data = realloc(val->data, val->siz);
437 export_prefix .. "void Blob_free(Blob *val)", [[
447 export_prefix .. "void Blob_write(Blob *buffer, Blob *val)", [[
449 u64_write(buffer, &val->siz);
450 raw_write(buffer, val->data, val->siz);
457 export_prefix .. "bool Blob_read(Blob *buffer, Blob *val)", [[
459 if (! u64_read(buffer, &val->siz))
462 if (! raw_read(buffer, val->data = malloc(val->siz), val->siz)) {
477 ]] .. local_prefix .. [[bool Blob_send(DragonnetPeer *peer, bool submit, Blob *val)
479 if (! u64_send(peer, false, &val->siz))
481 return dragonnet_send_raw(peer, submit, val->data, val->siz);
484 ]] .. local_prefix .. [[bool Blob_recv(DragonnetPeer *peer, Blob *val)
486 if (! u64_recv(peer, &val->siz))
489 if (! dragonnet_recv_raw(peer, val->data = malloc(val->siz), val->siz)) {
507 ]] .. local_prefix .. [[void raw_write_compressed(Blob *buffer, void *val, void (*val_write)(Blob *, void *))
509 Blob compressed, raw = {0};
510 val_write(&raw, val);
511 Blob_compress(&compressed, &raw);
512 Blob_write(buffer, &compressed);
514 Blob_free(&compressed);
518 ]] .. local_prefix .. [[bool raw_read_compressed(Blob *buffer, void *val, bool (*val_read)(Blob *, void *))
520 Blob compressed, raw = {0};
521 bool success = Blob_read(buffer, &compressed);
524 Blob_decompress(&raw, &compressed);
525 Blob raw_buffer = raw;
526 success = success && val_read(&raw_buffer, val);
529 Blob_free(&compressed);
536 ]] .. local_prefix .. [[bool raw_send_compressed(DragonnetPeer *peer, bool submit, void *val, void (*val_write)(Blob *, void *))
538 Blob compressed, raw = {0};
539 val_write(&raw, val);
540 Blob_compress(&compressed, &raw);
541 bool success = Blob_send(peer, submit, &compressed);
543 Blob_free(&compressed);
549 ]] .. local_prefix .. [[bool raw_recv_compressed(DragonnetPeer *peer, void *val, bool (*val_read)(Blob *, void *))
551 Blob compressed, raw = {0};
552 bool success = Blob_recv(peer, &compressed);
555 Blob_decompress(&raw, &compressed);
556 Blob raw_buffer = raw;
557 success = success && val_read(&raw_buffer, val);
560 Blob_free(&compressed);
570 local custom_types = {}
573 local function consume_name(name)
575 table.insert(custom_types, current_type)
581 current_type = {components = {}, component_names = {}}
583 current_type.flags = name:split(" ")
584 current_type.name = table.remove(current_type.flags, #current_type.flags)
586 if existing_types[current_type.name] then
587 error("redeclaration of type " .. current_type.name)
590 existing_types[current_type.name] = true
591 has_deallocator[current_type.name] = false
595 local function consume_comp(comp)
596 if not current_type then
597 error("component without a type: " .. comp)
602 component.flags = comp:split(" ")
603 component.name = table.remove(component.flags, #component.flags)
604 component.type = table.remove(component.flags, #component.flags)
606 component.full_name = current_type.name .. "." .. component.name
609 local met_brace = false
610 local brace_level = 0
612 for i = 1, #component.type do
613 local c = component.type:sub(i, i)
617 if not met_brace then
622 brace_level = brace_level + 1
624 if brace_level == 1 then
625 table.insert(component.array, "")
630 brace_level = brace_level - 1
632 if brace_level < 0 then
633 error("missing [ in " .. component.full_name)
634 elseif brace_level > 0 then
637 elseif not met_brace then
638 base_type = base_type .. c
639 elseif brace_level == 1 then
641 elseif brace_level == 0 then
642 error("invalid character " .. c .. " outside of braces in " .. component.full_name)
646 component.array[#component.array] = component.array[#component.array] .. c
650 component.type = base_type
652 if brace_level > 0 then
653 error("missing ] in " .. component.full_name)
656 if not existing_types[component.type] then
657 error("type " .. component.type .. " of " .. component.full_name .. " does not exist ")
660 has_deallocator[current_type.name] = has_deallocator[current_type.name] or has_deallocator[component.type]
662 if current_type.component_names[component.name] then
663 error("component " .. component.full_name .. " redeclared")
666 current_type.component_names[component.name] = true
668 table.insert(current_type.components, component)
672 for l in def:lines() do
673 local f = l:sub(1, 1)
676 consume_comp(l:sub(2, #l))
687 local dragonnet_types_h = ""
688 local dragonnet_types_c = ""
690 for _, t in ipairs(custom_types) do
693 for _, f in pairs(t.flags) do
697 error("invalid flag " .. f .. " for " .. t.name)
701 local typedef, free, write, read, send, recv =
702 "", "", "", "", "", ""
704 for ic, c in ipairs(t.components) do
706 .. "\t" .. c.type .. " " .. c.name
710 .. "[" .. table.concat(c.array, "][") .. "]"
716 local compressed = false
718 for _, f in pairs(c.flags) do
719 if f == "compressed" then
722 error("invalid flag " .. f .. " for " .. c.full_name)
729 local array_submit = ""
732 for ia, a in ipairs(c.array) do
735 loop = loop .. indent .. "for (int " .. it .. " = 0; " .. it .. " < " .. a .. "; " .. it .. "++)\n"
736 indent = indent .. "\t"
738 index = index .. "[" .. it .. "]"
740 array_submit = array_submit .. " && " .. it .. " == " .. a
744 local addr = "&val->" .. c.name .. index
746 if has_deallocator[c.type] then
748 .. loop .. indent .. c.type .. "_free(" .. addr .. ");\n"
752 .. loop .. indent .. (compressed
753 and "raw_write_compressed(buffer, " .. addr .. ", (void *) &" .. c.type .. "_write);\n"
754 or c.type .. "_write(buffer, " .. addr .. ");\n"
758 .. loop .. indent .. "if (! " .. (compressed
759 and "raw_read_compressed(buffer, " .. addr .. ", (void *) &" .. c.type .. "_read)"
760 or c.type .. "_read(buffer, " .. addr .. ")"
761 ) .. ")\n" .. indent .. "\treturn false;\n"
763 local submit = ic == #t.components and "submit" .. array_submit or "false"
765 .. loop .. indent .. "if (! " .. (compressed
766 and "raw_send_compressed(peer, " .. submit .. ", " .. addr .. ", (void *) &" .. c.type .. "_write)"
767 or c.type .. "_send(peer, " .. submit .. ", " .. addr .. ")"
768 ) .. ")\n" .. indent .. "\treturn false;\n"
771 .. loop .. indent .. "if (! " .. (compressed
772 and "raw_recv_compressed(peer, " .. addr .. ", (void *) &" .. c.type .. "_read)"
773 or c.type .. "_recv(peer, " .. addr .. ")"
774 ) .. ")\n" .. indent .. "\treturn false;\n"
777 emit_h("typedef struct {\n" .. typedef .. "} " .. t.name .. ";\n")
779 if has_deallocator[t.name] then
780 emit(export_prefix .. "void " .. t.name .. "_free(" .. t.name .. " *val)", "{\n" .. free .. "}\n\n")
783 emit(export_prefix .. "void " .. t.name .. "_write(Blob *buffer, " .. t.name .. " *val)", "{\n" .. write .. "}\n\n")
784 emit(export_prefix .. "bool " .. t.name .. "_read(Blob *buffer, " .. t.name .. " *val)", "{\n" .. read .. "\treturn true;\n}\n\n")
787 emit_h("#ifdef USE_DRAGONNET\n")
790 emit_c("#ifdef USE_DRAGONNET\n")
792 emit_c(local_prefix .. "bool " .. t.name .. "_send(DragonnetPeer *peer, bool submit, " .. t.name .. " *val)\n{\n" .. send .. "\treturn true;\n}\n\n")
793 emit_c(local_prefix .. "bool " .. t.name .. "_recv(DragonnetPeer *peer, " .. t.name .. " *val)\n{\n" .. recv .. "\treturn true;\n}\n")
797 emit_c("static DragonnetTypeId " .. t.name .. "_type_id = DRAGONNET_TYPE_" .. t.name .. ";\n")
799 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")
802 dragonnet_types_h = dragonnet_types_h
803 .. "\tDRAGONNET_TYPE_" .. t.name .. ",\n"
805 dragonnet_types_c = dragonnet_types_c
806 .. "\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"
814 emit_h("#ifdef USE_DRAGONNET\n")
815 emit_h("typedef enum {\n" .. dragonnet_types_h .. "\tDRAGONNET_NUM_TYPES\n} DragonnetTypeNum;\n")
818 emit_c("#ifdef USE_DRAGONNET\n")
819 emit_c("DragonnetTypeId dragonnet_num_types = DRAGONNET_NUM_TYPES;\nDragonnetType dragonnet_types[] = {\n" .. dragonnet_types_c .. "};\n")