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Add a standard Rusage type definition and wait4, getrusage declarations (#10484)

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c-blake
2019-01-29 15:25:08 -05:00
committed by Miran
parent dee8e6e98a
commit b2a5195e92
2 changed files with 22 additions and 0 deletions
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20
lib/posix/posix.nim
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@@ -663,6 +663,26 @@ proc waitid*(a1: cint, a2: Id, a3: var SigInfo, a4: cint): cint {.
proc waitpid*(a1: Pid, a2: var cint, a3: cint): Pid {.
importc, header: "<sys/wait.h>".}
type Rusage* {.importc: "struct rusage", header: "<sys/resource.h>",
bycopy.} = object
ru_utime*, ru_stime*: Timeval # User and system time
ru_maxrss*, ru_ixrss*, ru_idrss*, ru_isrss*, # memory sizes
ru_minflt*, ru_majflt*, ru_nswap*, # paging activity
ru_inblock*, ru_oublock*, ru_msgsnd*, ru_msgrcv*, # IO activity
ru_nsignals*, ru_nvcsw*, ru_nivcsw*: clong # switching activity
proc wait4*(pid: Pid, status: ptr cint, options: cint, rusage: ptr Rusage): Pid
{.importc, header: "<sys/wait.h>".}
const
RUSAGE_SELF* = cint(0)
RUSAGE_CHILDREN* = cint(-1)
RUSAGE_THREAD* = cint(1) # This one is less std; Linux, BSD agree though.
# This can only fail if `who` is invalid or `rusage` ptr is invalid.
proc getrusage*(who: cint, rusage: ptr Rusage): cint
{.importc, header: "<sys/resource.h>", discardable.}
proc bsd_signal*(a1: cint, a2: proc (x: pointer) {.noconv.}) {.
importc, header: "<signal.h>".}
proc kill*(a1: Pid, a2: cint): cint {.importc, header: "<signal.h>".}