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For a zombie process it throws a zombie_process error.

Usage

ps_connections(p = ps_handle())

Arguments

p

Process handle.

Value

Data frame, with columns:

  • fd: integer file descriptor on POSIX systems, NA on Windows.

  • family: Address family, string, typically AF_UNIX, AF_INET or AF_INET6.

  • type: Socket type, string, typically SOCK_STREAM (TCP) or SOCK_DGRAM (UDP).

  • laddr: Local address, string, NA for UNIX sockets.

  • lport: Local port, integer, NA for UNIX sockets.

  • raddr: Remote address, string, NA for UNIX sockets. This is always NA for AF_INET sockets on Linux.

  • rport: Remote port, integer, NA for UNIX sockets.

  • state: Socket state, e.g. CONN_ESTABLISHED, etc. It is NA for UNIX sockets.

Examples

p <- ps_handle()
ps_connections(p)
#> # A data frame: 6 × 8
#>      fd family  type        laddr      lport raddr          rport state   
#>   <int> <chr>   <chr>       <chr>      <int> <chr>          <int> <chr>   
#> 1    11 AF_UNIX SOCK_STREAM NA            NA NA                NA NA      
#> 2    10 AF_UNIX SOCK_STREAM NA            NA NA                NA NA      
#> 3    13 AF_INET SOCK_STREAM 10.1.0.136 53016 172.253.115.95   443 CONN_ES…
#> 4    14 AF_INET SOCK_STREAM 10.1.0.136 38214 142.251.16.94    443 CONN_ES…
#> 5    12 AF_INET SOCK_STREAM 10.1.0.136 53556 52.85.151.129    443 CONN_ES…
#> 6    15 AF_INET SOCK_STREAM 10.1.0.136 52988 52.85.151.129     80 CONN_ES…
sc <- socketConnection("httpbin.org", port = 80)
ps_connections(p)
#> # A data frame: 7 × 8
#>      fd family  type        laddr      lport raddr          rport state   
#>   <int> <chr>   <chr>       <chr>      <int> <chr>          <int> <chr>   
#> 1    11 AF_UNIX SOCK_STREAM NA            NA NA                NA NA      
#> 2    10 AF_UNIX SOCK_STREAM NA            NA NA                NA NA      
#> 3    13 AF_INET SOCK_STREAM 10.1.0.136 53016 172.253.115.95   443 CONN_ES…
#> 4    16 AF_INET SOCK_STREAM 10.1.0.136 47400 44.197.233.190    80 CONN_ES…
#> 5    14 AF_INET SOCK_STREAM 10.1.0.136 38214 142.251.16.94    443 CONN_ES…
#> 6    12 AF_INET SOCK_STREAM 10.1.0.136 53556 52.85.151.129    443 CONN_ES…
#> 7    15 AF_INET SOCK_STREAM 10.1.0.136 52988 52.85.151.129     80 CONN_ES…
close(sc)
ps_connections(p)
#> # A data frame: 6 × 8
#>      fd family  type        laddr      lport raddr          rport state   
#>   <int> <chr>   <chr>       <chr>      <int> <chr>          <int> <chr>   
#> 1    11 AF_UNIX SOCK_STREAM NA            NA NA                NA NA      
#> 2    10 AF_UNIX SOCK_STREAM NA            NA NA                NA NA      
#> 3    13 AF_INET SOCK_STREAM 10.1.0.136 53016 172.253.115.95   443 CONN_ES…
#> 4    14 AF_INET SOCK_STREAM 10.1.0.136 38214 142.251.16.94    443 CONN_ES…
#> 5    12 AF_INET SOCK_STREAM 10.1.0.136 53556 52.85.151.129    443 CONN_ES…
#> 6    15 AF_INET SOCK_STREAM 10.1.0.136 52988 52.85.151.129     80 CONN_ES…