initgraph, whole lot of refactor

2026-10-12 15:36:48 +02:00
parent 41cc7fea77
commit eabce70866
79 changed files with 3700 additions and 302 deletions
@@ -0,0 +1,82 @@
+#pragma once
+
+#include <zinnia/compiler.h>
+#include <zinnia/utils.h>
+#include <stddef.h>
+
+enum init_action {
+    INIT_EMPTY,
+    INIT_CALLBACK,
+    INIT_GATE,
+};
+
+struct boot_info;
+struct init_node;
+
+struct init_edge {
+    struct init_node* source;
+    struct init_node* target;
+    bool propagates_disable;
+    struct init_edge* next_in;
+    struct init_edge* next_out;
+};
+
+struct init_edges {
+    struct init_node* node;
+    bool depends;
+    size_t count;
+    struct init_node* const* nodes;
+    struct init_edge* edges;
+};
+
+struct init_node {
+    const char* name;
+    enum init_action action;
+    union {
+        void (*callback)(struct boot_info* info);
+        bool (*gate)(struct boot_info* info);
+        void* func;
+    };
+    size_t unsatisfied;
+    bool wanted;
+    bool done;
+    bool disabled;
+    struct init_edge* in_edges;
+    struct init_edge* out_edges;
+    struct init_node* queue_next;
+};
+
+#define INIT_EXTERN(node) extern struct init_node node[1]
+
+#define INIT_TASK(node, display, ...) \
+    struct init_node node[1] = {{ \
+        .name = (display), \
+        __VA_OPT__( \
+            .action = _Generic( \
+                (__VA_ARGS__), \
+                void (*)(struct boot_info*): INIT_CALLBACK, \
+                bool (*)(struct boot_info*): INIT_GATE \
+            ), \
+            .func = (void*)(__VA_ARGS__), \
+        ) \
+    }}; \
+    [[__used, __section(".initgraph.nodes")]] \
+    static struct init_node* const CONCAT(node, _initgraph_node) = node
+
+#define _INIT_EDGES(x, from, is_depends, ...) \
+    static struct init_node* const CONCAT(x, _nodes)[] = {__VA_ARGS__}; \
+    static struct init_edge CONCAT(x, _edges)[ARRAY_SIZE(CONCAT(x, _nodes))]; \
+    static const struct init_edges x = { \
+        .node = (from), \
+        .depends = (is_depends), \
+        .count = ARRAY_SIZE(CONCAT(x, _nodes)), \
+        .nodes = CONCAT(x, _nodes), \
+        .edges = CONCAT(x, _edges), \
+    }; \
+    [[__used, __section(".initgraph.edges")]] \
+    static const struct init_edges* const CONCAT(x, _ptr) = &x
+
+#define INIT_DEPENDS(node, ...) _INIT_EDGES(UNIQUE_IDENT(init_edges), node, true, __VA_ARGS__)
+#define INIT_ENTAILS(node, ...) _INIT_EDGES(UNIQUE_IDENT(init_edges), node, false, __VA_ARGS__)
+
+void initgraph_run(struct init_node* goal, struct boot_info* info);