cosmopolitan/libc/proc/proc.internal.h
Justine Tunney e961385e55
Put more thought into i/o polyfills
wait4() is now solid enough to run `make -j100` on Windows. You can now
use MSG_DONTWAIT on Windows. There was a handle leak in accept() that's
been fixed. Our WIN32 overlapped i/o code has been simplified. Priority
class now inherits into subprocesses, so the verynice command will work
and the signal mask will now be inherited by execve() and posix_spawn()
2023-11-07 18:32:35 -08:00

60 lines
1.3 KiB
C

#ifndef COSMOPOLITAN_LIBC_PROC_H_
#define COSMOPOLITAN_LIBC_PROC_H_
#include "libc/atomic.h"
#include "libc/calls/struct/rusage.h"
#include "libc/intrin/atomic.h"
#include "libc/intrin/dll.h"
#include "libc/thread/thread.h"
#include "third_party/nsync/mu.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define PROC_ALIVE 0
#define PROC_ZOMBIE 1
#define PROC_UNDEAD 2
#define PROC_CONTAINER(e) DLL_CONTAINER(struct Proc, elem, e)
struct Proc {
int pid;
int status;
int waiters;
bool wasforked;
uint32_t wstatus;
int64_t handle;
struct Dll elem;
struct rusage ru;
};
struct Procs {
int waiters;
atomic_uint once;
nsync_mu lock;
intptr_t thread;
intptr_t onbirth;
intptr_t haszombies;
struct Dll *list;
struct Dll *free;
struct Dll *undead;
struct Dll *zombies;
struct Proc pool[8];
unsigned allocated;
struct rusage ruchlds;
};
extern struct Procs __proc;
void __proc_wipe(void);
void __proc_lock(void);
void __proc_unlock(void);
int64_t __proc_handle(int);
int64_t __proc_search(int);
struct Proc *__proc_new(void);
void __proc_add(struct Proc *);
void __proc_free(struct Proc *);
int __proc_harvest(struct Proc *, bool);
int sys_wait4_nt(int, int *, int, struct rusage *);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_PROC_H_ */