85 lines
3.3 KiB
C
85 lines
3.3 KiB
C
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#pragma once
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#include "dqn.h"
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/*
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////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// $$$$$$$$\ $$\ $$\ $$$$$$$\ $$$$$$$$\ $$$$$$\ $$$$$$$\
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// \__$$ __|$$ | $$ |$$ __$$\ $$ _____|$$ __$$\ $$ __$$\
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// $$ | $$ | $$ |$$ | $$ |$$ | $$ / $$ |$$ | $$ |
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// $$ | $$$$$$$$ |$$$$$$$ |$$$$$\ $$$$$$$$ |$$ | $$ |
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// $$ | $$ __$$ |$$ __$$< $$ __| $$ __$$ |$$ | $$ |
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// $$ | $$ | $$ |$$ | $$ |$$ | $$ | $$ |$$ | $$ |
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// $$ | $$ | $$ |$$ | $$ |$$$$$$$$\ $$ | $$ |$$$$$$$ |
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// \__| \__| \__|\__| \__|\________|\__| \__|\_______/
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//
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// $$$$$$\ $$$$$$\ $$\ $$\ $$$$$$$$\ $$$$$$$$\ $$\ $$\ $$$$$$$$\
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// $$ __$$\ $$ __$$\ $$$\ $$ |\__$$ __|$$ _____|$$ | $$ |\__$$ __|
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// $$ / \__|$$ / $$ |$$$$\ $$ | $$ | $$ | \$$\ $$ | $$ |
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// $$ | $$ | $$ |$$ $$\$$ | $$ | $$$$$\ \$$$$ / $$ |
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// $$ | $$ | $$ |$$ \$$$$ | $$ | $$ __| $$ $$< $$ |
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// $$ | $$\ $$ | $$ |$$ |\$$$ | $$ | $$ | $$ /\$$\ $$ |
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// \$$$$$$ | $$$$$$ |$$ | \$$ | $$ | $$$$$$$$\ $$ / $$ | $$ |
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// \______/ \______/ \__| \__| \__| \________|\__| \__| \__|
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//
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// dqn_thread_context.h -- Per thread data (e.g. scratch arenas)
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//
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////////////////////////////////////////////////////////////////////////////////////////////////////
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*/
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enum Dqn_TLSArena
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{
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Dqn_TLSArena_Main, // NOTE: Arena for Permanent allocations
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Dqn_TLSArena_ErrorSink, // NOTE: Arena for logging error information for this thread
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// NOTE: Per-thread scratch arenas (2 to prevent aliasing)
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Dqn_TLSArena_TMem0,
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Dqn_TLSArena_TMem1,
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Dqn_TLSArena_Count,
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};
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struct Dqn_TLS
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{
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Dqn_b32 init; // Flag to track if Thread has been initialised
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uint64_t thread_id;
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Dqn_CallSite call_site; // Stores call-site information when requested by thread
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Dqn_ErrorSink error_sink; // Error handling state
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Dqn_Arena arenas[Dqn_TLSArena_Count];
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// Push and pop arenas onto the stack. Functions suffixed 'TLS' will use
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// these arenas for memory allocation.
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Dqn_Arena *arena_stack[8];
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Dqn_usize arena_stack_index;
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};
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// Push the temporary memory arena when retrieved, popped when the arena goes
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// out of scope. Pushed arenas are used automatically as the allocator in TLS
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// suffixed function.
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enum Dqn_TLSPushTMem
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{
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Dqn_TLSPushTMem_No,
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Dqn_TLSPushTMem_Yes,
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};
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struct Dqn_TLSTMem
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{
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Dqn_TLSTMem(Dqn_TLS *context, uint8_t context_index, Dqn_TLSPushTMem push_scratch);
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~Dqn_TLSTMem();
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Dqn_Arena *arena;
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Dqn_b32 destructed;
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Dqn_TLSPushTMem push_arena;
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Dqn_ArenaTempMem temp_mem;
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};
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DQN_API void Dqn_TLS_Init(Dqn_TLS *tls);
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DQN_API Dqn_TLS * Dqn_TLS_Get();
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#define Dqn_TLS_SaveCallSite do { Dqn_TLS_Get()->call_site = DQN_CALL_SITE; } while (0)
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DQN_API Dqn_TLSTMem Dqn_TLS_GetTMem(void const *conflict_arena, Dqn_TLSPushTMem push_tmp_mem);
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#define Dqn_TLS_TMem(...) Dqn_TLS_GetTMem(__VA_ARGS__, Dqn_TLSPushTMem_No)
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#define Dqn_TLS_PushTMem(...) Dqn_TLS_GetTMem(__VA_ARGS__, Dqn_TLSPushTMem_Yes)
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DQN_API void Dqn_TLS_PushArena(Dqn_Arena *arena);
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DQN_API void Dqn_TLS_PopArena();
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DQN_API Dqn_Arena * Dqn_TLS_TopArena();
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