scala.scalanative.posix.sys.wait.scala Maven / Gradle / Ivy
package scala.scalanative
package posix
package sys
import scalanative.unsafe._
/** POSIX wait.h for Scala
*
* The Open Group Base Specifications
* [[https://pubs.opengroup.org/onlinepubs/9699919799 Issue 7, 2018]] edition.
*
* A method with an XSI comment indicates it is defined in extended POSIX
* X/Open System Interfaces, not base POSIX.
*
* Note well: It is neither expect nor obvious from the declaration that the
* wait() method of this class can conflict with Object.wait(Long). This makes
* declaration and usage more difficult.
*
* The simplest approach is to avoid "wait(Ptr[CInt])" and use the directly
* equivalent idiom: // import scala.scalanative.posix.sys.wait.waitpid // or
* sys.wait._ // Replace Ptr[CInt] with your variable. val status = waitpid(-1,
* Ptr[CInt], 0)
*
* If that approach is not available, one can try the following idiom: //
* import scalanative.posix.sys.{wait => Wait} // import
* scalanative.posix.sys.wait._ // for WIFEXITED etc. // Replace Ptr[CInt] with
* your variable. val status = Wait.wait(Ptr[CInt])
*/
@extern
@define("__SCALANATIVE_POSIX_SYS_WAIT")
object wait {
type id_t = types.id_t
type pid_t = types.pid_t
type sigval = signal.sigval
type siginfo_t = signal.siginfo_t
/* The type idtype_t shall be defined as an enumeration type whose possible
* values shall include at least the following: P_ALL P_PGID P_PID
*/
type idtype_t = CInt // POSIX enumeration in simple Scala common to 2.n & 3.n
@name("scalanative_c_p_all")
def P_ALL: CInt = extern
@name("scalanative_c_p_pgid")
def P_PGID: CInt = extern
@name("scalanative_c_p_pid")
def P_PID: CInt = extern
// Symbolic constants, roughly in POSIX declaration order
// "constants" for waitpid() options
/** XSI
*/
@name("scalanative_c_wcontinued")
def WCONTINUED: CInt = extern
@name("scalanative_c_wnohang")
def WNOHANG: CInt = extern
@name("scalanative_c_wuntraced")
def WUNTRACED: CInt = extern
// "constants" for waitid()
@name("scalanative_c_wexited")
def WEXITED: CInt = extern
@name("scalanative_c_wnowait")
def WNOWAIT: CInt = extern
@name("scalanative_c_wstopped")
def WSTOPPED: CInt = extern
// POSIX "Macros"
@name("scalanative_c_wexitstatus")
def WEXITSTATUS(wstatus: CInt): CInt = extern
/** XSI
*/
@name("scalanative_c_wifcontinued")
def WIFCONTINUED(wstatus: CInt): CInt = extern
@name("scalanative_c_wifexited")
def WIFEXITED(wstatus: CInt): Boolean = extern
@name("scalanative_c_wifsignaled")
def WIFSIGNALED(wstatus: CInt): Boolean = extern
@name("scalanative_c_wifstopped")
def WIFSTOPPED(wstatus: CInt): Boolean = extern
@name("scalanative_c_wstopsig")
def WSTOPSIG(wstatus: CInt): Boolean = extern
@name("scalanative_c_wtermsig")
def WTERMSIG(wstatus: CInt): CInt = extern
// Methods
/** See declaration & usage note in class description.
*/
@blocking
def wait(status: Ptr[CInt]): pid_t = extern
@blocking
def waitid(
idtype: idtype_t,
id: id_t,
status: Ptr[CInt],
options: CInt
): CInt = extern
@blocking
def waitpid(pid: pid_t, status: Ptr[CInt], options: CInt): pid_t = extern
}