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raddebugger/src/text_cache/text_cache.c
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// Copyright (c) 2024 Epic Games Tools
// Licensed under the MIT license (https://opensource.org/license/mit/)
////////////////////////////////
//~ rjf: Basic Helpers
internal TXT_LangKind
txt_lang_kind_from_extension(String8 extension)
{
TXT_LangKind kind = TXT_LangKind_Null;
if(str8_match(extension, str8_lit("c"), 0) ||
str8_match(extension, str8_lit("h"), 0))
{
kind = TXT_LangKind_C;
}
else if(str8_match(extension, str8_lit("cpp"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("cxx"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("cc"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("c++"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("C"), 0) ||
str8_match(extension, str8_lit("hpp"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("hxx"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("hh"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("h++"), StringMatchFlag_CaseInsensitive) ||
str8_match(extension, str8_lit("H"), 0))
{
kind = TXT_LangKind_CPlusPlus;
}
else if(str8_match(extension, str8_lit("odin"), StringMatchFlag_CaseInsensitive))
{
kind = TXT_LangKind_Odin;
}
return kind;
}
internal TXT_LangKind
txt_lang_kind_from_architecture(Architecture arch)
{
TXT_LangKind kind = TXT_LangKind_Null;
switch(arch)
{
default:{}break;
case Architecture_x64:{kind = TXT_LangKind_DisasmX64Intel;}break;
}
return kind;
}
internal TXT_LangLexFunctionType *
txt_lex_function_from_lang_kind(TXT_LangKind kind)
{
TXT_LangLexFunctionType *fn = 0;
switch(kind)
{
default:{}break;
case TXT_LangKind_C: {fn = txt_token_array_from_string__c_cpp;}break;
case TXT_LangKind_CPlusPlus: {fn = txt_token_array_from_string__c_cpp;}break;
case TXT_LangKind_Odin: {fn = txt_token_array_from_string__odin;}break;
case TXT_LangKind_DisasmX64Intel:{fn = txt_token_array_from_string__disasm_x64_intel;}break;
}
return fn;
}
////////////////////////////////
//~ rjf: Token Type Functions
internal void
txt_token_chunk_list_push(Arena *arena, TXT_TokenChunkList *list, U64 cap, TXT_Token *token)
{
TXT_TokenChunkNode *node = list->last;
if(node == 0 || node->count >= node->cap)
{
node = push_array(arena, TXT_TokenChunkNode, 1);
SLLQueuePush(list->first, list->last, node);
node->cap = cap;
node->v = push_array_no_zero(arena, TXT_Token, node->cap);
list->chunk_count += 1;
}
MemoryCopyStruct(&node->v[node->count], token);
node->count += 1;
list->token_count += 1;
}
internal void
txt_token_list_push(Arena *arena, TXT_TokenList *list, TXT_Token *token)
{
TXT_TokenNode *node = push_array(arena, TXT_TokenNode, 1);
MemoryCopyStruct(&node->v, token);
SLLQueuePush(list->first, list->last, node);
list->count += 1;
}
internal TXT_TokenArray
txt_token_array_from_chunk_list(Arena *arena, TXT_TokenChunkList *list)
{
TXT_TokenArray array = {0};
array.count = list->token_count;
array.v = push_array_no_zero(arena, TXT_Token, array.count);
U64 idx = 0;
for(TXT_TokenChunkNode *n = list->first; n != 0; n = n->next)
{
MemoryCopy(array.v+idx, n->v, n->count*sizeof(TXT_Token));
idx += n->count;
}
return array;
}
internal TXT_TokenArray
txt_token_array_from_list(Arena *arena, TXT_TokenList *list)
{
TXT_TokenArray array = {0};
array.count = list->count;
array.v = push_array_no_zero(arena, TXT_Token, array.count);
U64 idx = 0;
for(TXT_TokenNode *n = list->first; n != 0; n = n->next)
{
MemoryCopyStruct(array.v+idx, &n->v);
idx += 1;
}
return array;
}
////////////////////////////////
//~ rjf: Lexing Functions
internal TXT_TokenArray
txt_token_array_from_string__c_cpp(Arena *arena, U64 *bytes_processed_counter, String8 string)
{
Temp scratch = scratch_begin(&arena, 1);
//- rjf: generate token list
TXT_TokenChunkList tokens = {0};
{
B32 comment_is_single_line = 0;
B32 string_is_char = 0;
TXT_TokenKind active_token_kind = TXT_TokenKind_Null;
U64 active_token_start_idx = 0;
B32 escaped = 0;
B32 next_escaped = 0;
U64 byte_process_start_idx = 0;
for(U64 idx = 0; idx <= string.size;)
{
U8 byte = (idx+0 < string.size) ? (string.str[idx+0]) : 0;
U8 next_byte = (idx+1 < string.size) ? (string.str[idx+1]) : 0;
// rjf: update counter
if(bytes_processed_counter != 0 && ((idx-byte_process_start_idx) >= 1000 || idx == string.size))
{
ins_atomic_u64_add_eval(bytes_processed_counter, (idx-byte_process_start_idx));
byte_process_start_idx = idx;
}
// rjf: escaping
if(escaped && (byte != '\r' && byte != '\n'))
{
next_escaped = 0;
}
else if(!escaped && byte == '\\')
{
next_escaped = 1;
}
// rjf: take starter, determine active token kind
if(active_token_kind == TXT_TokenKind_Null)
{
// rjf: use next bytes to start a new token
if(0){}
else if(char_is_space(byte)) { active_token_kind = TXT_TokenKind_Whitespace; }
else if(byte == '_' ||
byte == '$' ||
char_is_alpha(byte)) { active_token_kind = TXT_TokenKind_Identifier; }
else if(char_is_digit(byte, 10) ||
(byte == '.' &&
char_is_digit(next_byte, 10))) { active_token_kind = TXT_TokenKind_Numeric; }
else if(byte == '"') { active_token_kind = TXT_TokenKind_String; string_is_char = 0; }
else if(byte == '\'') { active_token_kind = TXT_TokenKind_String; string_is_char = 1; }
else if(byte == '/' && next_byte == '/') { active_token_kind = TXT_TokenKind_Comment; comment_is_single_line = 1; }
else if(byte == '/' && next_byte == '*') { active_token_kind = TXT_TokenKind_Comment; comment_is_single_line = 0; }
else if(byte == '~' || byte == '!' ||
byte == '%' || byte == '^' ||
byte == '&' || byte == '*' ||
byte == '(' || byte == ')' ||
byte == '-' || byte == '=' ||
byte == '+' || byte == '[' ||
byte == ']' || byte == '{' ||
byte == '}' || byte == ':' ||
byte == ';' || byte == ',' ||
byte == '.' || byte == '<' ||
byte == '>' || byte == '/' ||
byte == '?' || byte == '|') { active_token_kind = TXT_TokenKind_Symbol; }
else if(byte == '#') { active_token_kind = TXT_TokenKind_Meta; }
// rjf: start new token
if(active_token_kind != TXT_TokenKind_Null)
{
active_token_start_idx = idx;
}
// rjf: invalid token kind -> emit error
else
{
TXT_Token token = {TXT_TokenKind_Error, r1u64(idx, idx+1)};
txt_token_chunk_list_push(scratch.arena, &tokens, 4096, &token);
}
}
// rjf: look for ender
U64 ender_pad = 0;
B32 ender_found = 0;
if(active_token_kind != TXT_TokenKind_Null && idx>active_token_start_idx)
{
if(idx == string.size)
{
ender_pad = 0;
ender_found = 1;
}
else switch(active_token_kind)
{
default:break;
case TXT_TokenKind_Whitespace:
{
ender_found = !char_is_space(byte);
}break;
case TXT_TokenKind_Identifier:
{
ender_found = (!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '_' && byte != '$');
}break;
case TXT_TokenKind_Numeric:
{
ender_found = (!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '_' && byte != '.' && byte != '\'');
}break;
case TXT_TokenKind_String:
{
ender_found = (!escaped && ((!string_is_char && byte == '"') || (string_is_char && byte == '\'')));
ender_pad += 1;
}break;
case TXT_TokenKind_Symbol:
{
ender_found = (byte != '~' && byte != '!' &&
byte != '%' && byte != '^' &&
byte != '&' && byte != '*' &&
byte != '(' && byte != ')' &&
byte != '-' && byte != '=' &&
byte != '+' && byte != '[' &&
byte != ']' && byte != '{' &&
byte != '}' && byte != ':' &&
byte != ';' && byte != ',' &&
byte != '.' && byte != '<' &&
byte != '>' && byte != '/' &&
byte != '?' && byte != '|');
}break;
case TXT_TokenKind_Comment:
{
if(comment_is_single_line)
{
ender_found = (!escaped && (byte == '\r' || byte == '\n'));
}
else
{
ender_found = (active_token_start_idx+1 < idx && byte == '*' && next_byte == '/');
ender_pad += 2;
}
}break;
case TXT_TokenKind_Meta:
{
ender_found = (!escaped && (byte == '\r' || byte == '\n'));
}break;
}
}
// rjf: next byte is ender => emit token
if(ender_found)
{
TXT_Token token = {active_token_kind, r1u64(active_token_start_idx, idx+ender_pad)};
active_token_kind = TXT_TokenKind_Null;
// rjf: identifier -> keyword in special cases
if(token.kind == TXT_TokenKind_Identifier)
{
read_only local_persist String8 cpp_keywords[] =
{
str8_lit_comp("alignas"),
str8_lit_comp("alignof"),
str8_lit_comp("and"),
str8_lit_comp("and_eq"),
str8_lit_comp("asm"),
str8_lit_comp("atomic_cancel"),
str8_lit_comp("atomic_commit"),
str8_lit_comp("atomic_noexcept"),
str8_lit_comp("auto"),
str8_lit_comp("bitand"),
str8_lit_comp("bitor"),
str8_lit_comp("bool"),
str8_lit_comp("break"),
str8_lit_comp("case"),
str8_lit_comp("catch"),
str8_lit_comp("char"),
str8_lit_comp("char8_t"),
str8_lit_comp("char16_t"),
str8_lit_comp("char32_t"),
str8_lit_comp("class"),
str8_lit_comp("compl"),
str8_lit_comp("concept"),
str8_lit_comp("const"),
str8_lit_comp("consteval"),
str8_lit_comp("constexpr"),
str8_lit_comp("constinit"),
str8_lit_comp("const_cast"),
str8_lit_comp("continue"),
str8_lit_comp("co_await"),
str8_lit_comp("co_return"),
str8_lit_comp("co_yield"),
str8_lit_comp("decltype"),
str8_lit_comp("default"),
str8_lit_comp("delete"),
str8_lit_comp("do"),
str8_lit_comp("double"),
str8_lit_comp("dynamic_cast"),
str8_lit_comp("else"),
str8_lit_comp("enum"),
str8_lit_comp("explicit"),
str8_lit_comp("export"),
str8_lit_comp("extern"),
str8_lit_comp("false"),
str8_lit_comp("float"),
str8_lit_comp("for"),
str8_lit_comp("friend"),
str8_lit_comp("goto"),
str8_lit_comp("if"),
str8_lit_comp("inline"),
str8_lit_comp("int"),
str8_lit_comp("long"),
str8_lit_comp("mutable"),
str8_lit_comp("namespace"),
str8_lit_comp("new"),
str8_lit_comp("noexcept"),
str8_lit_comp("not"),
str8_lit_comp("not_eq"),
str8_lit_comp("nullptr"),
str8_lit_comp("operator"),
str8_lit_comp("or"),
str8_lit_comp("or_eq"),
str8_lit_comp("private"),
str8_lit_comp("protected"),
str8_lit_comp("public"),
str8_lit_comp("reflexpr"),
str8_lit_comp("register"),
str8_lit_comp("reinterpret_cast"),
str8_lit_comp("requires"),
str8_lit_comp("return"),
str8_lit_comp("short"),
str8_lit_comp("signed"),
str8_lit_comp("sizeof"),
str8_lit_comp("static"),
str8_lit_comp("static_assert"),
str8_lit_comp("static_cast"),
str8_lit_comp("struct"),
str8_lit_comp("switch"),
str8_lit_comp("synchronized"),
str8_lit_comp("template"),
str8_lit_comp("this"),
str8_lit_comp("thread_local"),
str8_lit_comp("throw"),
str8_lit_comp("true"),
str8_lit_comp("try"),
str8_lit_comp("typedef"),
str8_lit_comp("typeid"),
str8_lit_comp("typename"),
str8_lit_comp("union"),
str8_lit_comp("unsigned"),
str8_lit_comp("using"),
str8_lit_comp("virtual"),
str8_lit_comp("void"),
str8_lit_comp("volatile"),
str8_lit_comp("wchar_t"),
str8_lit_comp("while"),
str8_lit_comp("xor"),
str8_lit_comp("xor_eq"),
};
String8 token_string = str8_substr(string, r1u64(active_token_start_idx, idx+ender_pad));
for(U64 keyword_idx = 0; keyword_idx < ArrayCount(cpp_keywords); keyword_idx += 1)
{
if(str8_match(cpp_keywords[keyword_idx], token_string, 0))
{
token.kind = TXT_TokenKind_Keyword;
break;
}
}
}
// rjf: push
txt_token_chunk_list_push(scratch.arena, &tokens, 4096, &token);
// rjf: increment by ender padding
idx += ender_pad;
}
// rjf: advance by 1 byte if we haven't found an ender
if(!ender_found)
{
idx += 1;
}
escaped = next_escaped;
}
}
//- rjf: token list -> token array
TXT_TokenArray result = txt_token_array_from_chunk_list(arena, &tokens);
scratch_end(scratch);
return result;
}
internal TXT_TokenArray
txt_token_array_from_string__odin(Arena *arena, U64 *bytes_processed_counter, String8 string)
{
Temp scratch = scratch_begin(&arena, 1);
//- rjf: generate token list
TXT_TokenChunkList tokens = {0};
{
B32 comment_is_single_line = 0;
B32 string_is_char = 0;
TXT_TokenKind active_token_kind = TXT_TokenKind_Null;
U64 active_token_start_idx = 0;
B32 escaped = 0;
B32 next_escaped = 0;
U64 byte_process_start_idx = 0;
for(U64 idx = 0; idx <= string.size;)
{
U8 byte = (idx+0 < string.size) ? (string.str[idx+0]) : 0;
U8 next_byte = (idx+1 < string.size) ? (string.str[idx+1]) : 0;
// rjf: update counter
if(bytes_processed_counter != 0 && ((idx-byte_process_start_idx) >= 1000 || idx == string.size))
{
ins_atomic_u64_add_eval(bytes_processed_counter, (idx-byte_process_start_idx));
byte_process_start_idx = idx;
}
// rjf: escaping
if(escaped && (byte != '\r' && byte != '\n'))
{
next_escaped = 0;
}
else if(!escaped && byte == '\\')
{
next_escaped = 1;
}
// rjf: take starter, determine active token kind
if(active_token_kind == TXT_TokenKind_Null)
{
// rjf: use next bytes to start a new token
if(0){}
else if(char_is_space(byte)) { active_token_kind = TXT_TokenKind_Whitespace; }
else if(byte == '_' ||
byte == '$' ||
char_is_alpha(byte)) { active_token_kind = TXT_TokenKind_Identifier; }
else if(char_is_digit(byte, 10) ||
(byte == '.' &&
char_is_digit(next_byte, 10))) { active_token_kind = TXT_TokenKind_Numeric; }
else if(byte == '"') { active_token_kind = TXT_TokenKind_String; string_is_char = 0; }
else if(byte == '\'') { active_token_kind = TXT_TokenKind_String; string_is_char = 1; }
else if(byte == '/' && next_byte == '/') { active_token_kind = TXT_TokenKind_Comment; comment_is_single_line = 1; }
else if(byte == '/' && next_byte == '*') { active_token_kind = TXT_TokenKind_Comment; comment_is_single_line = 0; }
else if(byte == '~' || byte == '!' ||
byte == '%' || byte == '^' ||
byte == '&' || byte == '*' ||
byte == '(' || byte == ')' ||
byte == '-' || byte == '=' ||
byte == '+' || byte == '[' ||
byte == ']' || byte == '{' ||
byte == '}' || byte == ':' ||
byte == ';' || byte == ',' ||
byte == '.' || byte == '<' ||
byte == '>' || byte == '/' ||
byte == '?' || byte == '|') { active_token_kind = TXT_TokenKind_Symbol; }
else if(byte == '#') { active_token_kind = TXT_TokenKind_Meta; }
// rjf: start new token
if(active_token_kind != TXT_TokenKind_Null)
{
active_token_start_idx = idx;
}
// rjf: invalid token kind -> emit error
else
{
TXT_Token token = {TXT_TokenKind_Error, r1u64(idx, idx+1)};
txt_token_chunk_list_push(scratch.arena, &tokens, 4096, &token);
}
}
// rjf: look for ender
U64 ender_pad = 0;
B32 ender_found = 0;
if(active_token_kind != TXT_TokenKind_Null && idx>active_token_start_idx)
{
if(idx == string.size)
{
ender_pad = 0;
ender_found = 1;
}
else switch(active_token_kind)
{
default:break;
case TXT_TokenKind_Whitespace:
{
ender_found = !char_is_space(byte);
}break;
case TXT_TokenKind_Identifier:
{
ender_found = (!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '_' && byte != '$');
}break;
case TXT_TokenKind_Numeric:
{
ender_found = (!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '_' && byte != '.' && byte != '\'');
}break;
case TXT_TokenKind_String:
{
ender_found = (!escaped && ((!string_is_char && byte == '"') || (string_is_char && byte == '\'')));
ender_pad += 1;
}break;
case TXT_TokenKind_Symbol:
{
ender_found = (byte != '~' && byte != '!' &&
byte != '%' && byte != '^' &&
byte != '&' && byte != '*' &&
byte != '(' && byte != ')' &&
byte != '-' && byte != '=' &&
byte != '+' && byte != '[' &&
byte != ']' && byte != '{' &&
byte != '}' && byte != ':' &&
byte != ';' && byte != ',' &&
byte != '.' && byte != '<' &&
byte != '>' && byte != '/' &&
byte != '?' && byte != '|');
}break;
case TXT_TokenKind_Comment:
{
if(comment_is_single_line)
{
ender_found = (!escaped && (byte == '\r' || byte == '\n'));
}
else
{
ender_found = (active_token_start_idx+1 < idx && byte == '*' && next_byte == '/');
ender_pad += 2;
}
}break;
case TXT_TokenKind_Meta:
{
ender_found = (!char_is_alpha(byte) && !char_is_digit(byte, 10) && byte != '_' && byte != '$');
}break;
}
}
// rjf: next byte is ender => emit token
if(ender_found)
{
TXT_Token token = {active_token_kind, r1u64(active_token_start_idx, idx+ender_pad)};
active_token_kind = TXT_TokenKind_Null;
// rjf: identifier -> keyword in special cases
if(token.kind == TXT_TokenKind_Identifier)
{
read_only local_persist String8 odin_keywords[] =
{
str8_lit_comp("asm"),
str8_lit_comp("auto_cast"),
str8_lit_comp("bit_set"),
str8_lit_comp("break"),
str8_lit_comp("case"),
str8_lit_comp("cast"),
str8_lit_comp("context"),
str8_lit_comp("continue"),
str8_lit_comp("defer"),
str8_lit_comp("distinct"),
str8_lit_comp("do"),
str8_lit_comp("dynamic"),
str8_lit_comp("else"),
str8_lit_comp("enum"),
str8_lit_comp("fallthrough"),
str8_lit_comp("for"),
str8_lit_comp("foreign"),
str8_lit_comp("if"),
str8_lit_comp("in"),
str8_lit_comp("map"),
str8_lit_comp("matrix"),
str8_lit_comp("not_in"),
str8_lit_comp("or_break"),
str8_lit_comp("or_continue"),
str8_lit_comp("or_else"),
str8_lit_comp("or_return"),
str8_lit_comp("package"),
str8_lit_comp("proc"),
str8_lit_comp("return"),
str8_lit_comp("struct"),
str8_lit_comp("switch"),
str8_lit_comp("transmute"),
str8_lit_comp("typeid"),
str8_lit_comp("union"),
str8_lit_comp("using"),
str8_lit_comp("when"),
str8_lit_comp("where"),
str8_lit_comp("import"),
};
String8 token_string = str8_substr(string, r1u64(active_token_start_idx, idx+ender_pad));
for(U64 keyword_idx = 0; keyword_idx < ArrayCount(odin_keywords); keyword_idx += 1)
{
if(str8_match(odin_keywords[keyword_idx], token_string, 0))
{
token.kind = TXT_TokenKind_Keyword;
break;
}
}
}
// rjf: push
txt_token_chunk_list_push(scratch.arena, &tokens, 4096, &token);
// rjf: increment by ender padding
idx += ender_pad;
}
// rjf: advance by 1 byte if we haven't found an ender
if(!ender_found)
{
idx += 1;
}
escaped = next_escaped;
}
}
//- rjf: token list -> token array
TXT_TokenArray result = txt_token_array_from_chunk_list(arena, &tokens);
scratch_end(scratch);
return result;
}
internal TXT_TokenArray
txt_token_array_from_string__disasm_x64_intel(Arena *arena, U64 *bytes_processed_counter, String8 string)
{
Temp scratch = scratch_begin(&arena, 1);
//- rjf: parse tokens
TXT_TokenChunkList tokens = {0};
{
TXT_TokenKind active_token_kind = TXT_TokenKind_Null;
U64 active_token_start_off = 0;
U64 off = 0;
B32 escaped = 0;
B32 string_is_char = 0;
S32 brace_nest = 0;
for(U64 advance = 0; off <= string.size; off += advance)
{
U8 byte = (off+0 < string.size) ? string.str[off+0] : 0;
U8 next_byte = (off+1 < string.size) ? string.str[off+1] : 0;
B32 ender_found = 0;
advance = (active_token_kind != TXT_TokenKind_Null ? 1 : 0);
if(off == string.size && active_token_kind != TXT_TokenKind_Null)
{
ender_found = 1;
advance = 1;
}
switch(active_token_kind)
{
default:
case TXT_TokenKind_Null:
{
if(byte == ' ' || byte == '\t' || byte == '\v' || byte == '\f' || byte == '\r' || byte == '\n')
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_Whitespace;
advance = 1;
}
else if(('a' <= byte && byte <= 'z') || ('A' <= byte && byte <= 'Z') || byte == '_')
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_Keyword;
advance = 1;
}
else if(byte == '\'')
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_String;
advance = 1;
string_is_char = 1;
}
else if(byte == '"')
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_String;
advance = 1;
string_is_char = 0;
}
else if(('0' <= byte && byte <= '9') || (byte == '.' && '0' <= next_byte && next_byte <= '9'))
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_Numeric;
advance = 1;
}
else if(byte == '~' || byte == '!' || byte == '%' || byte == '^' ||
byte == '&' || byte == '*' || byte == '(' || byte == ')' ||
byte == '-' || byte == '=' || byte == '+' || byte == '[' ||
byte == ']' || byte == '{' || byte == '}' || byte == ';' ||
byte == ':' || byte == '?' || byte == '/' || byte == '<' ||
byte == '>' || byte == ',' || byte == '.')
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_Symbol;
advance = 1;
if(byte == '{')
{
brace_nest += 1;
}
else if(byte == '}')
{
brace_nest -= 1;
}
}
else
{
active_token_start_off = off;
active_token_kind = TXT_TokenKind_Error;
advance = 1;
}
}break;
case TXT_TokenKind_Whitespace:
if(byte != ' ' && byte != '\t' && byte != '\v' && byte != '\f')
{
ender_found = 1;
advance = 0;
}break;
case TXT_TokenKind_Keyword:
if((byte < 'a' || 'z' < byte) && (byte < 'A' || 'Z' < byte) && (byte < '0' || '9' < byte) && byte != '_')
{
ender_found = 1;
advance = 0;
}break;
case TXT_TokenKind_String:
{
U8 ender_byte = string_is_char ? '\'' : '"';
if(!escaped && byte == ender_byte)
{
ender_found = 1;
advance = 1;
}
else if(escaped)
{
escaped = 0;
advance = 1;
}
else if(byte == '\\')
{
escaped = 1;
advance = 1;
}
else
{
U8 byte_class = utf8_class[byte>>3];
if(byte_class > 1)
{
advance = (U64)byte_class;
}
}
}break;
case TXT_TokenKind_Numeric:
if((byte < 'a' || 'z' < byte) && (byte < 'A' || 'Z' < byte) && (byte < '0' || '9' < byte) && byte != '.')
{
ender_found = 1;
advance = 0;
}break;
case TXT_TokenKind_Symbol:
if(1)
{
// NOTE(rjf): avoiding maximum munch rule for now
ender_found = 1;
advance = 0;
}
else if(byte != '~' && byte != '!' && byte != '#' && byte != '%' &&
byte != '^' && byte != '&' && byte != '*' && byte != '(' &&
byte != ')' && byte != '-' && byte != '=' && byte != '+' &&
byte != '[' && byte != ']' && byte != '{' && byte != '}' &&
byte != ';' && byte != ':' && byte != '?' && byte != '/' &&
byte != '<' && byte != '>' && byte != ',' && byte != '.')
{
ender_found = 1;
advance = 0;
}break;
case TXT_TokenKind_Error:
{
ender_found = 1;
advance = 0;
}break;
}
if(ender_found != 0)
{
if(brace_nest != 0 && active_token_kind == TXT_TokenKind_Keyword)
{
active_token_kind = TXT_TokenKind_Numeric;
}
TXT_Token token = {active_token_kind, r1u64(active_token_start_off, off+advance)};
txt_token_chunk_list_push(arena, &tokens, 1024, &token);
active_token_kind = TXT_TokenKind_Null;
active_token_start_off = token.range.max;
}
}
}
//- rjf: token list -> token array
TXT_TokenArray result = txt_token_array_from_chunk_list(arena, &tokens);
scratch_end(scratch);
return result;
}
////////////////////////////////
//~ rjf: Main Layer Initialization
internal void
txt_init(void)
{
Arena *arena = arena_alloc();
txt_shared = push_array(arena, TXT_Shared, 1);
txt_shared->arena = arena;
txt_shared->slots_count = 1024;
txt_shared->slots = push_array(arena, TXT_Slot, txt_shared->slots_count);
txt_shared->stripes_count = Min(txt_shared->slots_count, os_logical_core_count());
txt_shared->stripes = push_array(arena, TXT_Stripe, txt_shared->stripes_count);
txt_shared->stripes_free_nodes = push_array(arena, TXT_Node *, txt_shared->stripes_count);
for(U64 idx = 0; idx < txt_shared->stripes_count; idx += 1)
{
txt_shared->stripes[idx].arena = arena_alloc();
txt_shared->stripes[idx].rw_mutex = os_rw_mutex_alloc();
txt_shared->stripes[idx].cv = os_condition_variable_alloc();
}
txt_shared->u2p_ring_size = KB(64);
txt_shared->u2p_ring_base = push_array_no_zero(arena, U8, txt_shared->u2p_ring_size);
txt_shared->u2p_ring_cv = os_condition_variable_alloc();
txt_shared->u2p_ring_mutex = os_mutex_alloc();
txt_shared->parse_thread_count = Clamp(1, os_logical_core_count()-1, 4);
txt_shared->parse_threads = push_array(arena, OS_Handle, txt_shared->parse_thread_count);
for(U64 idx = 0; idx < txt_shared->parse_thread_count; idx += 1)
{
txt_shared->parse_threads[idx] = os_launch_thread(txt_parse_thread__entry_point, (void *)idx, 0);
}
txt_shared->evictor_thread = os_launch_thread(txt_evictor_thread__entry_point, 0, 0);
}
////////////////////////////////
//~ rjf: Thread Context Initialization
internal void
txt_tctx_ensure_inited(void)
{
if(txt_tctx == 0)
{
Arena *arena = arena_alloc();
txt_tctx = push_array(arena, TXT_TCTX, 1);
txt_tctx->arena = arena;
}
}
////////////////////////////////
//~ rjf: User Clock
internal void
txt_user_clock_tick(void)
{
ins_atomic_u64_inc_eval(&txt_shared->user_clock_idx);
}
internal U64
txt_user_clock_idx(void)
{
return ins_atomic_u64_eval(&txt_shared->user_clock_idx);
}
////////////////////////////////
//~ rjf: Scoped Access
internal TXT_Scope *
txt_scope_open(void)
{
txt_tctx_ensure_inited();
TXT_Scope *scope = txt_tctx->free_scope;
if(scope)
{
SLLStackPop(txt_tctx->free_scope);
}
else
{
scope = push_array_no_zero(txt_tctx->arena, TXT_Scope, 1);
}
MemoryZeroStruct(scope);
return scope;
}
internal void
txt_scope_close(TXT_Scope *scope)
{
for(TXT_Touch *touch = scope->top_touch, *next = 0; touch != 0; touch = next)
{
U128 hash = touch->hash;
next = touch->next;
U64 slot_idx = hash.u64[1]%txt_shared->slots_count;
U64 stripe_idx = slot_idx%txt_shared->stripes_count;
TXT_Slot *slot = &txt_shared->slots[slot_idx];
TXT_Stripe *stripe = &txt_shared->stripes[stripe_idx];
OS_MutexScopeR(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(hash, n->hash) && touch->lang == n->lang)
{
ins_atomic_u64_dec_eval(&n->scope_ref_count);
break;
}
}
}
SLLStackPush(txt_tctx->free_touch, touch);
}
SLLStackPush(txt_tctx->free_scope, scope);
}
internal void
txt_scope_touch_node__stripe_r_guarded(TXT_Scope *scope, TXT_Node *node)
{
TXT_Touch *touch = txt_tctx->free_touch;
ins_atomic_u64_inc_eval(&node->scope_ref_count);
ins_atomic_u64_eval_assign(&node->last_time_touched_us, os_now_microseconds());
ins_atomic_u64_eval_assign(&node->last_user_clock_idx_touched, txt_user_clock_idx());
if(touch != 0)
{
SLLStackPop(txt_tctx->free_touch);
}
else
{
touch = push_array_no_zero(txt_tctx->arena, TXT_Touch, 1);
}
MemoryZeroStruct(touch);
touch->hash = node->hash;
touch->lang = node->lang;
SLLStackPush(scope->top_touch, touch);
}
////////////////////////////////
//~ rjf: Cache Lookups
internal TXT_TextInfo
txt_text_info_from_hash_lang(TXT_Scope *scope, U128 hash, TXT_LangKind lang)
{
TXT_TextInfo info = {0};
if(!u128_match(hash, u128_zero()))
{
U64 slot_idx = hash.u64[1]%txt_shared->slots_count;
U64 stripe_idx = slot_idx%txt_shared->stripes_count;
TXT_Slot *slot = &txt_shared->slots[slot_idx];
TXT_Stripe *stripe = &txt_shared->stripes[stripe_idx];
B32 found = 0;
OS_MutexScopeR(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(hash, n->hash) && n->lang == lang)
{
MemoryCopyStruct(&info, &n->info);
info.bytes_processed = ins_atomic_u64_eval(&n->info.bytes_processed);
info.bytes_to_process = ins_atomic_u64_eval(&n->info.bytes_to_process);
found = 1;
txt_scope_touch_node__stripe_r_guarded(scope, n);
break;
}
}
}
B32 node_is_new = 0;
if(!found)
{
OS_MutexScopeW(stripe->rw_mutex)
{
TXT_Node *node = 0;
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(hash, n->hash) && n->lang == lang)
{
node = n;
break;
}
}
if(node == 0)
{
node = txt_shared->stripes_free_nodes[stripe_idx];
if(node)
{
SLLStackPop(txt_shared->stripes_free_nodes[stripe_idx]);
}
else
{
node = push_array_no_zero(stripe->arena, TXT_Node, 1);
}
MemoryZeroStruct(node);
DLLPushBack(slot->first, slot->last, node);
node->hash = hash;
node->lang = lang;
node_is_new = 1;
}
}
}
if(node_is_new)
{
txt_u2p_enqueue_req(hash, lang, max_U64);
}
}
return info;
}
internal TXT_TextInfo
txt_text_info_from_key_lang(TXT_Scope *scope, U128 key, TXT_LangKind lang, U128 *hash_out)
{
TXT_TextInfo result = {0};
for(U64 rewind_idx = 0; rewind_idx < 2; rewind_idx += 1)
{
U128 hash = hs_hash_from_key(key, rewind_idx);
result = txt_text_info_from_hash_lang(scope, hash, lang);
if(result.lines_count != 0)
{
if(hash_out)
{
*hash_out = hash;
}
break;
}
}
return result;
}
////////////////////////////////
//~ rjf: Text Info Extractor Helpers
internal U64
txt_off_from_info_pt(TXT_TextInfo *info, TxtPt pt)
{
U64 off = 0;
if(1 <= pt.line && pt.line <= info->lines_count)
{
Rng1U64 line_range = info->lines_ranges[pt.line-1];
off = line_range.min + (pt.column-1);
}
return off;
}
internal TxtPt
txt_pt_from_info_off__linear_scan(TXT_TextInfo *info, U64 off)
{
TxtPt pt = {0};
{
for(U64 line_idx = 0; line_idx < info->lines_count; line_idx += 1)
{
if(contains_1u64(info->lines_ranges[line_idx], off))
{
pt.line = (S64)line_idx + 1;
pt.column = (S64)(off - info->lines_ranges[line_idx].min) + 1;
}
}
}
return pt;
}
internal TXT_TokenArray
txt_token_array_from_info_line_num__linear_scan(TXT_TextInfo *info, S64 line_num)
{
TXT_TokenArray line_tokens = {0};
if(1 <= line_num && line_num <= info->lines_count)
{
Rng1U64 line_range = info->lines_ranges[line_num-1];
for(U64 token_idx = 0; token_idx < info->tokens.count; token_idx += 1)
{
Rng1U64 token_range = info->tokens.v[token_idx].range;
Rng1U64 token_x_line = intersect_1u64(token_range, line_range);
if(token_x_line.max > token_x_line.min)
{
if(line_tokens.v == 0)
{
line_tokens.v = info->tokens.v+token_idx;
}
line_tokens.count += 1;
}
else if(line_tokens.v != 0)
{
break;
}
}
}
return line_tokens;
}
internal Rng1U64
txt_expr_off_range_from_line_off_range_string_tokens(U64 off, Rng1U64 line_range, String8 line_text, TXT_TokenArray *line_tokens)
{
Rng1U64 result = {0};
Temp scratch = scratch_begin(0, 0);
{
// rjf: unpack line info
TXT_Token *line_tokens_first = line_tokens->v;
TXT_Token *line_tokens_opl = line_tokens->v+line_tokens->count;
// rjf: find token containing `off`
TXT_Token *pt_token = 0;
for(TXT_Token *token = line_tokens_first;
token < line_tokens_opl;
token += 1)
{
if(contains_1u64(token->range, off))
{
Rng1U64 token_range_clamped = intersect_1u64(line_range, token->range);
String8 token_string = str8_substr(line_text, r1u64(token_range_clamped.max - line_range.min, token_range_clamped.max - line_range.min));
B32 token_ender = 0;
switch(token->kind)
{
default:{}break;
case TXT_TokenKind_Symbol:
{
token_ender = (str8_match(token_string, str8_lit("]"), 0));
}break;
case TXT_TokenKind_Identifier:
case TXT_TokenKind_Keyword:
case TXT_TokenKind_String:
case TXT_TokenKind_Meta:
{
token_ender = 1;
}break;
}
if(token_ender)
{
pt_token = token;
}
break;
}
}
// rjf: found token containing `off`? -> mark that as our initial range
if(pt_token != 0)
{
result = pt_token->range;
}
// rjf: walk back from pt_token - try to find plausible start of expression
if(pt_token != 0)
{
B32 walkback_done = 0;
S32 nest = 0;
for(TXT_Token *wb_token = pt_token;
wb_token >= line_tokens_first && walkback_done == 0;
wb_token -= 1)
{
Rng1U64 wb_token_range_clamped = intersect_1u64(line_range, wb_token->range);
String8 wb_token_string = str8_substr(line_text, r1u64(wb_token_range_clamped.min - line_range.min, wb_token_range_clamped.max - line_range.min));
B32 include_wb_token = 0;
switch(wb_token->kind)
{
default:{}break;
case TXT_TokenKind_Symbol:
{
B32 is_scope_resolution = str8_match(wb_token_string, str8_lit("::"), 0);
B32 is_dot = str8_match(wb_token_string, str8_lit("."), 0);
B32 is_arrow = str8_match(wb_token_string, str8_lit("->"), 0);
B32 is_open_bracket = str8_match(wb_token_string, str8_lit("["), 0);
B32 is_close_bracket = str8_match(wb_token_string, str8_lit("]"), 0);
nest -= !!(is_open_bracket);
nest += !!(is_close_bracket);
if(is_scope_resolution ||
is_dot ||
is_arrow ||
is_open_bracket||
is_close_bracket)
{
include_wb_token = 1;
}
}break;
case TXT_TokenKind_Identifier:
{
include_wb_token = 1;
}break;
}
if(include_wb_token)
{
result = union_1u64(result, wb_token->range);
}
else if(nest == 0)
{
walkback_done = 1;
}
}
}
}
scratch_end(scratch);
return result;
}
internal Rng1U64
txt_expr_off_range_from_info_data_pt(TXT_TextInfo *info, String8 data, TxtPt pt)
{
Rng1U64 result = {0};
Temp scratch = scratch_begin(0, 0);
if(1 <= pt.line && pt.line <= info->lines_count)
{
// rjf: unpack line info
Rng1U64 line_range = info->lines_ranges[pt.line-1];
String8 line_text = str8_substr(data, line_range);
TXT_LineTokensSlice line_tokens_slice = txt_line_tokens_slice_from_info_data_line_range(scratch.arena, info, data, r1s64(pt.line, pt.line));
TXT_TokenArray line_tokens = line_tokens_slice.line_tokens[0];
TXT_Token *line_tokens_first = line_tokens.v;
TXT_Token *line_tokens_opl = line_tokens.v+line_tokens.count;
U64 pt_off = line_range.min + (pt.column-1);
// rjf: grab offset range of expression
result = txt_expr_off_range_from_line_off_range_string_tokens(pt_off, line_range, line_text, &line_tokens);
}
scratch_end(scratch);
return result;
}
internal String8
txt_string_from_info_data_txt_rng(TXT_TextInfo *info, String8 data, TxtRng rng)
{
Rng1U64 rng_off = r1u64(txt_off_from_info_pt(info, rng.min), txt_off_from_info_pt(info, rng.max));
String8 result = str8_substr(data, rng_off);
return result;
}
internal String8
txt_string_from_info_data_line_num(TXT_TextInfo *info, String8 data, S64 line_num)
{
String8 result = {0};
if(1 <= line_num && line_num <= info->lines_count)
{
result = str8_substr(data, info->lines_ranges[line_num-1]);
}
return result;
}
internal TXT_LineTokensSlice
txt_line_tokens_slice_from_info_data_line_range(Arena *arena, TXT_TextInfo *info, String8 data, Rng1S64 line_range)
{
TXT_LineTokensSlice result = {0};
Temp scratch = scratch_begin(&arena, 1);
if(info->lines_count != 0)
{
Rng1S64 line_range_clamped = r1s64(Clamp(1, line_range.min, (S64)info->lines_count), Clamp(1, line_range.max, (S64)info->lines_count));
U64 line_count = (U64)dim_1s64(line_range_clamped)+1;
// rjf: allocate output arrays
result.line_tokens = push_array(arena, TXT_TokenArray, line_count);
// rjf: binary search to find first token
TXT_Token *tokens_first = 0;
ProfScope("binary search to find first token")
{
Rng1U64 slice_range = r1u64(info->lines_ranges[line_range_clamped.min-1].min, info->lines_ranges[line_range_clamped.max-1].max);
U64 min_idx = 0;
U64 opl_idx = info->tokens.count;
for(;;)
{
U64 mid_idx = (opl_idx+min_idx)/2;
if(mid_idx >= opl_idx)
{
break;
}
TXT_Token *mid_token = &info->tokens.v[mid_idx];
if(mid_token->range.min > slice_range.max)
{
opl_idx = mid_idx;
}
else if(mid_token->range.max < slice_range.min)
{
min_idx = mid_idx;
}
else if(tokens_first == 0 || mid_token->range.min < tokens_first->range.min)
{
tokens_first = mid_token;
opl_idx = mid_idx;
}
if(mid_idx == min_idx && mid_idx+1 == opl_idx)
{
break;
}
}
}
// rjf: grab per-line tokens
TXT_TokenList *line_tokens_lists = push_array(scratch.arena, TXT_TokenList, line_count);
if(tokens_first != 0) ProfScope("grab per-line tokens")
{
TXT_Token *tokens_opl = info->tokens.v+info->tokens.count;
U64 line_slice_idx = 0;
for(TXT_Token *token = tokens_first; token < tokens_opl && line_slice_idx < line_count;)
{
if(token->range.min < info->lines_ranges[line_slice_idx+line_range.min-1].max)
{
if(token->range.max > info->lines_ranges[line_slice_idx+line_range.min-1].min)
{
txt_token_list_push(scratch.arena, &line_tokens_lists[line_slice_idx], token);
}
B32 need_token_advance = 0;
B32 need_line_advance = 0;
if(token->range.max >= info->lines_ranges[line_slice_idx+line_range.min-1].max)
{
need_line_advance = 1;
}
if(token->range.max <= info->lines_ranges[line_slice_idx+line_range.min-1].max)
{
need_token_advance += 1;
}
if(need_line_advance) { line_slice_idx += 1; }
if(need_token_advance) { token += 1; }
}
else
{
line_slice_idx += 1;
}
}
}
// rjf: bake per-line tokens to arrays
for(U64 line_slice_idx = 0; line_slice_idx < line_count; line_slice_idx += 1)
{
result.line_tokens[line_slice_idx] = txt_token_array_from_list(arena, &line_tokens_lists[line_slice_idx]);
}
}
scratch_end(scratch);
return result;
}
////////////////////////////////
//~ rjf: Transfer Threads
internal B32
txt_u2p_enqueue_req(U128 hash, TXT_LangKind lang, U64 endt_us)
{
B32 good = 0;
OS_MutexScope(txt_shared->u2p_ring_mutex) for(;;)
{
U64 unconsumed_size = txt_shared->u2p_ring_write_pos - txt_shared->u2p_ring_read_pos;
U64 available_size = txt_shared->u2p_ring_size - unconsumed_size;
if(available_size >= sizeof(hash)+sizeof(lang))
{
good = 1;
txt_shared->u2p_ring_write_pos += ring_write_struct(txt_shared->u2p_ring_base, txt_shared->u2p_ring_size, txt_shared->u2p_ring_write_pos, &hash);
txt_shared->u2p_ring_write_pos += ring_write_struct(txt_shared->u2p_ring_base, txt_shared->u2p_ring_size, txt_shared->u2p_ring_write_pos, &lang);
break;
}
if(os_now_microseconds() >= endt_us)
{
break;
}
os_condition_variable_wait(txt_shared->u2p_ring_cv, txt_shared->u2p_ring_mutex, endt_us);
}
if(good)
{
os_condition_variable_broadcast(txt_shared->u2p_ring_cv);
}
return good;
}
internal void
txt_u2p_dequeue_req(U128 *hash_out, TXT_LangKind *lang_out)
{
OS_MutexScope(txt_shared->u2p_ring_mutex) for(;;)
{
U64 unconsumed_size = txt_shared->u2p_ring_write_pos - txt_shared->u2p_ring_read_pos;
if(unconsumed_size >= sizeof(*hash_out) + sizeof(*lang_out))
{
txt_shared->u2p_ring_read_pos += ring_read_struct(txt_shared->u2p_ring_base, txt_shared->u2p_ring_size, txt_shared->u2p_ring_read_pos, hash_out);
txt_shared->u2p_ring_read_pos += ring_read_struct(txt_shared->u2p_ring_base, txt_shared->u2p_ring_size, txt_shared->u2p_ring_read_pos, lang_out);
break;
}
os_condition_variable_wait(txt_shared->u2p_ring_cv, txt_shared->u2p_ring_mutex, max_U64);
}
os_condition_variable_broadcast(txt_shared->u2p_ring_cv);
}
internal void
txt_parse_thread__entry_point(void *p)
{
for(;;)
{
//- rjf: get next key
U128 hash = {0};
TXT_LangKind lang = TXT_LangKind_Null;
txt_u2p_dequeue_req(&hash, &lang);
HS_Scope *scope = hs_scope_open();
//- rjf: unpack hash
U64 slot_idx = hash.u64[1]%txt_shared->slots_count;
U64 stripe_idx = slot_idx%txt_shared->stripes_count;
TXT_Slot *slot = &txt_shared->slots[slot_idx];
TXT_Stripe *stripe = &txt_shared->stripes[stripe_idx];
//- rjf: take task
B32 got_task = 0;
OS_MutexScopeR(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(n->hash, hash) && n->lang == lang)
{
got_task = !ins_atomic_u32_eval_cond_assign(&n->is_working, 1, 0);
break;
}
}
}
//- rjf: hash -> data
String8 data = {0};
if(got_task)
{
data = hs_data_from_hash(scope, hash);
}
//- rjf: data -> text info
Arena *info_arena = 0;
TXT_TextInfo info = {0};
if(got_task && data.size != 0)
{
info_arena = arena_alloc();
//- rjf: grab pointers to working counters
U64 *bytes_processed_ptr = 0;
U64 *bytes_to_process_ptr = 0;
OS_MutexScopeR(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(n->hash, hash) && n->lang == lang)
{
bytes_processed_ptr = &n->info.bytes_processed;
bytes_to_process_ptr = &n->info.bytes_to_process;
}
}
}
//- rjf: set # of bytes to process
if(bytes_to_process_ptr)
{
// (line ending calc) (line counting) (line measuring) (lexing)
ins_atomic_u64_eval_assign(bytes_to_process_ptr, Min(data.size, 1024) + data.size + data.size + data.size*(lang != TXT_LangKind_Null));
}
//- rjf: detect line end kind
TXT_LineEndKind line_end_kind = TXT_LineEndKind_Null;
{
U64 lf_count = 0;
U64 cr_count = 0;
for(U64 idx = 0; idx < data.size && idx < 1024; idx += 1)
{
if(data.str[idx] == '\r')
{
cr_count += 1;
}
if(data.str[idx] == '\n')
{
lf_count += 1;
}
}
if(cr_count >= lf_count/2 && lf_count >= 1)
{
line_end_kind = TXT_LineEndKind_CRLF;
}
else if(lf_count >= 1)
{
line_end_kind = TXT_LineEndKind_LF;
}
info.line_end_kind = line_end_kind;
}
//- rjf: bump progress
if(bytes_processed_ptr)
{
ins_atomic_u64_eval_assign(bytes_processed_ptr, Min(data.size, 1024));
}
//- rjf: count # of lines
U64 line_count = 1;
U64 byte_process_start_idx = 0;
for(U64 idx = 0; idx < data.size; idx += 1)
{
if(data.str[idx] == '\n' || data.str[idx] == '\r')
{
line_count += 1;
if(data.str[idx] == '\r')
{
idx += 1;
}
}
if(idx && idx%1000 == 0)
{
ins_atomic_u64_add_eval(bytes_processed_ptr, 1000);
}
}
//- rjf: bump progress
if(bytes_processed_ptr)
{
ins_atomic_u64_eval_assign(bytes_processed_ptr, Min(data.size, 1024) + data.size);
}
//- rjf: allocate & store line ranges
info.lines_count = line_count;
info.lines_ranges = push_array_no_zero(info_arena, Rng1U64, info.lines_count);
U64 line_idx = 0;
U64 line_start_idx = 0;
for(U64 idx = 0; idx <= data.size; idx += 1)
{
if(idx == data.size || data.str[idx] == '\n' || data.str[idx] == '\r')
{
Rng1U64 line_range = r1u64(line_start_idx, idx);
U64 line_size = dim_1u64(line_range);
info.lines_ranges[line_idx] = line_range;
info.lines_max_size = Max(info.lines_max_size, line_size);
line_idx += 1;
line_start_idx = idx+1;
if(idx < data.size && data.str[idx] == '\r')
{
line_start_idx += 1;
idx += 1;
}
}
if(idx && idx%1000 == 0)
{
ins_atomic_u64_add_eval(bytes_processed_ptr, 1000);
}
}
//- rjf: bump progress
if(bytes_processed_ptr)
{
ins_atomic_u64_eval_assign(bytes_processed_ptr, Min(data.size, 1024) + data.size + data.size);
}
//- rjf: lang -> lex function
TXT_LangLexFunctionType *lex_function = txt_lex_function_from_lang_kind(lang);
//- rjf: lex function * data -> tokens
TXT_TokenArray tokens = {0};
if(lex_function != 0)
{
tokens = lex_function(info_arena, bytes_processed_ptr, data);
}
info.tokens = tokens;
//- rjf: bump progress
if(bytes_processed_ptr)
{
ins_atomic_u64_eval_assign(bytes_processed_ptr, Min(data.size, 1024) + data.size + data.size + data.size*(lex_function != 0));
}
}
//- rjf: commit results to cache
if(got_task) OS_MutexScopeW(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(n->hash, hash) && n->lang == lang)
{
n->arena = info_arena;
info.bytes_processed = n->info.bytes_processed;
info.bytes_to_process = n->info.bytes_to_process;
MemoryCopyStruct(&n->info, &info);
ins_atomic_u32_eval_assign(&n->is_working, 0);
ins_atomic_u64_inc_eval(&n->load_count);
break;
}
}
}
hs_scope_close(scope);
}
}
////////////////////////////////
//~ rjf: Evictor Threads
internal void
txt_evictor_thread__entry_point(void *p)
{
for(;;)
{
U64 check_time_us = os_now_microseconds();
U64 check_time_user_clocks = txt_user_clock_idx();
U64 evict_threshold_us = 10*1000000;
U64 evict_threshold_user_clocks = 10;
for(U64 slot_idx = 0; slot_idx < txt_shared->slots_count; slot_idx += 1)
{
U64 stripe_idx = slot_idx%txt_shared->stripes_count;
TXT_Slot *slot = &txt_shared->slots[slot_idx];
TXT_Stripe *stripe = &txt_shared->stripes[stripe_idx];
B32 slot_has_work = 0;
OS_MutexScopeR(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first; n != 0; n = n->next)
{
if(n->scope_ref_count == 0 &&
n->last_time_touched_us+evict_threshold_us <= check_time_us &&
n->last_user_clock_idx_touched+evict_threshold_user_clocks <= check_time_user_clocks &&
n->load_count != 0 &&
n->is_working == 0)
{
slot_has_work = 1;
break;
}
}
}
if(slot_has_work) OS_MutexScopeW(stripe->rw_mutex)
{
for(TXT_Node *n = slot->first, *next = 0; n != 0; n = next)
{
next = n->next;
if(n->scope_ref_count == 0 &&
n->last_time_touched_us+evict_threshold_us <= check_time_us &&
n->last_user_clock_idx_touched+evict_threshold_user_clocks <= check_time_user_clocks &&
n->load_count != 0 &&
n->is_working == 0)
{
DLLRemove(slot->first, slot->last, n);
if(n->arena != 0)
{
arena_release(n->arena);
}
SLLStackPush(txt_shared->stripes_free_nodes[stripe_idx], n);
}
}
}
os_sleep_milliseconds(5);
}
os_sleep_milliseconds(1000);
}
}
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