Tenari
115 lines
3.5 KiB
C
115 lines
3.5 KiB
C
#include "types.h"
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#include "memory.h"
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#ifndef BASE_THREAD_CONTEXT_H
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#define BASE_THREAD_CONTEXT_H
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typedef struct LaneCtx {
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u64 lane_idx;
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u64 lane_count;
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Barrier barrier;
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u64 *broadcast_memory;
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} LaneCtx;
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typedef struct AccessPt AccessPt;
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struct AccessPt
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{
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u64 access_refcount;
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u64 last_time_touched_us;
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u64 last_update_idx_touched;
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};
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typedef struct AccessPtExpireParams AccessPtExpireParams;
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struct AccessPtExpireParams
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{
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u64 time;
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u64 update_idxs;
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};
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typedef struct Touch Touch;
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struct Touch
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{
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Touch *next;
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AccessPt *pt;
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CondVar cv;
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};
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typedef struct Access Access;
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struct Access
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{
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Access *next;
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Touch *top_touch;
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};
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typedef struct TCtx {
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// scratch arenas
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Arena *arenas[2];
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u8 thread_name[32];
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u64 thread_name_size;
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LaneCtx lane_ctx;
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// source location info
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char *file_name;
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u64 line_number;
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// accesses
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Arena *access_arena;
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Access *free_access;
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Touch *free_touch;
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u64 *progress_counter_ptr;
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u64 *progress_target_ptr;
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} TCtx;
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////////////////////////////////
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// Thread Context Functions
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// thread-context allocation & selection
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fn TCtx *tctxAlloc(void);
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fn void tctxRelease(TCtx *tctx);
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fn void tctxSelect(TCtx *tctx);
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fn TCtx *tctxSelected(void);
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//- rjf: scratch arenas
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internal Arena *tctx_get_scratch(Arena **conflicts, U64 count);
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#define scratch_begin(conflicts, count) temp_begin(tctx_get_scratch((conflicts), (count)))
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#define scratch_end(scratch) temp_end(scratch)
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//- rjf: lane metadata
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internal LaneCtx tctx_set_lane_ctx(LaneCtx lane_ctx);
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internal void tctx_lane_barrier_wait(void *broadcast_ptr, U64 broadcast_size, U64 broadcast_src_lane_idx);
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#define lane_idx() (tctx_selected()->lane_ctx.lane_idx)
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#define lane_count() (tctx_selected()->lane_ctx.lane_count)
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#define lane_from_task_idx(idx) ((idx)%lane_count())
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#define lane_ctx(ctx) tctx_set_lane_ctx((ctx))
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#define lane_sync() tctx_lane_barrier_wait(0, 0, 0)
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#define lane_sync_u64(ptr, src_lane_idx) tctx_lane_barrier_wait((ptr), sizeof(*(ptr)), (src_lane_idx))
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#define lane_range(count) m_range_from_n_idx_m_count(lane_idx(), lane_count(), (count))
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//- rjf: thread names
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internal void tctx_set_thread_name(String8 name);
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internal String8 tctx_get_thread_name(void);
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//- rjf: thread source-locations
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internal void tctx_write_srcloc(char *file_name, U64 line_number);
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internal void tctx_read_srcloc(char **file_name, U64 *line_number);
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#define tctx_write_this_srcloc() tctx_write_srcloc(__FILE__, __LINE__)
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//- rjf: access scopes
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internal Access *access_open(void);
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internal void access_close(Access *access);
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internal void access_touch(Access *access, AccessPt *pt, CondVar cv);
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//- rjf: access points
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internal B32 access_pt_is_expired_(AccessPt *pt, AccessPtExpireParams *params);
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#define access_pt_is_expired(pt, ...) access_pt_is_expired_((pt), &(AccessPtExpireParams){.time = 2000000, .update_idxs = 2, __VA_ARGS__})
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//- rjf: progress counters
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#define set_progress_ptr(ptr) (tctx_selected()->progress_counter_ptr = (ptr))
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#define set_progress_target_ptr(ptr) (tctx_selected()->progress_target_ptr = (ptr))
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#define set_progress(val) (tctx_selected()->progress_counter_ptr ? ins_atomic_u64_eval_assign(tctx_selected()->progress_counter_ptr, (val)) : (void)0)
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#define add_progress(val) (tctx_selected()->progress_counter_ptr ? ins_atomic_u64_add_eval(tctx_selected()->progress_counter_ptr, (val)) : (void)0)
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#define set_progress_target(val) (tctx_selected()->progress_target_ptr ? ins_atomic_u64_eval_assign(tctx_selected()->progress_target_ptr, (val)) : (void)0)
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#endif // BASE_THREAD_CONTEXT_H
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