module.h

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#pragma once

#include<libtransistor/collections/list.h>
#include<libtransistor/ld/elf.h>

#include<stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    MODULE_STATE_INVALID = 0,
    MODULE_STATE_QUEUED = 1,
    MODULE_STATE_SCANNED = 2,
    MODULE_STATE_RELOCATED = 3,
    MODULE_STATE_INITIALIZED = 4,
    MODULE_STATE_FINALIZED = 5,
    MODULE_STATE_UNLOADED = 6,
} module_state_t;

typedef struct {
    module_t *module;
    trn_list_head_t list;
} module_list_node_t;

struct module_t {
    module_state_t state;
    int refcount;
    
    // needed for MODULE_STATE_QUEUED
    module_input_t input;

    trn_list_head_t dependencies;
    
    Elf64_Dyn *dynamic;
    Elf64_Sym *symtab;
    const char *strtab;
    uint32_t *hash;
};

// module operations
result_t ld_scan_module(module_t *mod);
result_t ld_relocate_module(module_t *mod);
result_t ld_initialize_module(module_t *mod);
result_t ld_finalize_module(module_t *mod);
result_t ld_destroy_module(module_t *mod);
// \ref ld_decref_module is a public API and goes in ld.h

#ifdef __cplusplus
}
#endif