mirror of
https://github.com/c3lang/c3c.git
synced 2026-02-27 12:01:16 +00:00
29 lines
1.0 KiB
Plaintext
29 lines
1.0 KiB
Plaintext
module std::os::posix @if(env::POSIX);
|
|
import libc;
|
|
|
|
|
|
const PROT_NONE = 0x00; // no permissions
|
|
const PROT_READ = 0x01; // pages can be read
|
|
const PROT_WRITE = 0x02; // pages can be written
|
|
const PROT_EXEC = 0x04; // pages can be executed
|
|
|
|
const MAP_SHARED = 0x0001; // share changes
|
|
const MAP_PRIVATE = 0x0002; // changes are private
|
|
|
|
const MAP_FILE = 0x0000; // map from file (default)
|
|
|
|
const MAP_ANONYMOUS = env::LINUX ??? 0x20 : 0x1000; // allocated from memory, swap space
|
|
|
|
const void* MAP_FAILED = (void *)(uptr)-1; // mmap failed
|
|
const MADV_NORMAL = 0; // no further special treatment
|
|
const MADV_RANDOM = 1; // expect random page refs
|
|
const MADV_SEQUENTIAL = 2; // expect sequential page refs
|
|
const MADV_WILLNEED = 3; // will need these pages
|
|
const MADV_DONTNEED = 4; // dont need these pages
|
|
|
|
extern fn void* mmap(void*, usz, CInt, CInt, CInt, Off_t);
|
|
extern fn CInt munmap(void*, usz);
|
|
extern fn CInt mprotect(void*, usz, CInt);
|
|
extern fn int madvise(void*, usz, CInt);
|
|
|
|
extern fn CInt getpagesize(); |