#ifndef VMSIG_MEMCTX_CFG_H
#define VMSIG_MEMCTX_CFG_H
#include <stdint.h>

/* Private config of the memctx adapter (vmie). Passed as opaque to open(); NOT
 * public (layout per reference: src/<module>/include/). cfg==NULL => stub. */
typedef struct {
    int         stub;       /* 1 => synthetic kcr3/RO-fd (spine without a VM)           */
    const char* ram_path;   /* armed: path to guest RAM backing (NOT published outward) */
    uint64_t    low;        /* below-4G split (vmie_win32_open / locator.low)           */
    int         ro_fd;      /* >=0 => infra hands a pre-sealed RO-fd (policy); OWNERSHIP */
                            /*        TRANSFERS to the adapter (closed in close()) — the */
                            /*        caller dups first if it must keep its own copy.    */
                            /* <0  => default: open(ram_path, O_RDONLY) / stub-memfd     */
    uint32_t    fail_boots; /* test-only: fail the first N stub bootstraps before        */
                            /* succeeding (drives the retry/backoff path deterministically */
                            /* without timing dependence); 0 in production. stub path only. */
} vmsig_memctx_cfg;

/* Max SRC bytes per atomic gva_write (bounds the worker POD slot; mc_req header + src
 * must stay <= VMSIG_WORK_SLOT). Private to the adapter (an executor bound), NOT part of
 * the neutral control contract — control only needs VMSIG_MEMWRITE_INLINE for inline SRC. */
#define VMSIG_MEMWRITE_MAX 192u

#endif /* VMSIG_MEMCTX_CFG_H */