process.c File Reference

#include <stdint.h>
#include <sys/cdefs.h>
#include <sys/wait.h>
#include <sys/syscall.h>
#include <unistd.h>
#include <errno.h>
#include <syscall.h>

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Functions
unsigned int	sleep (unsigned int seconds)
pid_t	spawn (const char *path, const char *argv[])
pid_t	waitpid (pid_t pid, int *status, UNUSED int options)
pid_t	wait (int *status)

Function Documentation

sleep()

unsigned int sleep

(

unsigned int

seconds

)

Definition at line 12 of file process.c.

{
    OSThreadSleep(seconds);
 
    // Should return left over time if woke up early
    return 0;
}

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spawn()

pid_t spawn	(	const char *	path,
		const char *	argv[]
	)

Definition at line 21 of file process.c.

{
    uint64_t status = OSSpawn(path, argv);
 
    if (SYSCALL_ERRCODE(status) != 0) {
        errno = SYSCALL_ERRCODE(status);
        return -1;
    }
 
    return (pid_t)SYSCALL_VALUE(status);
}

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wait()

pid_t wait

(

int *

status

)

Definition at line 49 of file process.c.

{
    return waitpid(WAIT_ANY, status, 0);
}

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waitpid()

pid_t waitpid	(	pid_t	pid,
		int *	status,
		UNUSED int	options
	)

Definition at line 34 of file process.c.

{
    uint64_t wstatus = OSWait(pid);
 
    if (SYSCALL_ERRCODE(wstatus) != 0) {
        errno = SYSCALL_ERRCODE(wstatus);
        return -1;
    }
 
    *status = SYSCALL_VALUE(wstatus) & 0x0000ffff;
 
    return WGETPID(SYSCALL_VALUE(wstatus));
}

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