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50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
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#ifndef COSMOPOLITAN_LIBC_RUNTIME_MAPS_H_
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#define COSMOPOLITAN_LIBC_RUNTIME_MAPS_H_
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#include "libc/intrin/atomic.h"
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#include "libc/intrin/dll.h"
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#include "libc/thread/tls2.internal.h"
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COSMOPOLITAN_C_START_
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#define MAP_CONTAINER(e) DLL_CONTAINER(struct Map, elem, e)
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struct Map {
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_Atomic(struct Map *) next; /* for __maps.maps */
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char *addr; /* granule aligned */
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size_t size; /* must be nonzero */
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struct Dll elem; /* for __maps.free */
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int64_t off; /* -1 if anonymous */
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int prot; /* memory protects */
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int flags; /* memory map flag */
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bool iscow; /* windows nt only */
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bool readonlyfile; /* windows nt only */
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intptr_t h; /* windows nt only */
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};
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struct Maps {
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atomic_int lock;
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_Atomic(struct Map *) maps;
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struct Dll *free;
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struct Map stack;
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struct Dll *used;
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};
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struct AddrSize {
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char *addr;
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size_t size;
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};
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extern struct Maps __maps;
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int maps_check(void);
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void __maps_init(void);
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void __maps_lock(void);
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void __maps_unlock(void);
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struct Map *__maps_alloc(void);
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void __maps_free(struct Map *);
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void __maps_insert(struct Map *);
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void *__mmap(char *, size_t, int, int, int, int64_t);
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struct AddrSize __get_main_stack(void);
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COSMOPOLITAN_C_END_
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#endif /* COSMOPOLITAN_LIBC_RUNTIME_MAPS_H_ */
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