GETSID(2) | System Calls Manual | GETSID(2) |
getsid
— get
process session
Standard C Library (libc, -lc)
#include
<unistd.h>
pid_t
getsid
(pid_t pid);
The session ID of the process identified by
pid is returned by
getsid
().
If pid is zero, getsid
()
returns the session ID of the current process.
Upon successful completion, the function
getsid
() returns the session ID of the specified
process; otherwise, it returns a value of -1 and sets errno to indicate an
error.
The getsid
() system call will fail if:
ESRCH
]Note that an implementation may restrict this function call to processes within the same session ID as the calling process.
The getsid
() function call appeared in
FreeBSD 3.0. The getsid
()
function call is derived from its usage in AT&T
System V UNIX.
August 19, 1997 | macOS 14.6 |