minix/lib/libsys/getprocnr.c

#include "syslib.h"
#include <unistd.h>
#include <string.h>

int
getprocnr(pid_t pid, endpoint_t *proc_e)
{
	message m;
	int r;

	memset(&m, 0, sizeof(m));
	m.PM_GETPROCNR_PID = pid;

	if ((r = _taskcall(PM_PROC_NR, PM_GETPROCNR, &m)) < 0)
		return r;

	*proc_e = m.PM_GETPROCNR_ENDPT;
	return r;
}
libsys: various updates - move system calls for use by services from libminlib into libsys; - move srv_fork(2) and srv_kill(2) from RS and into libsys; - replace getprocnr(2) with sef_self(3); - rename previous getnprocnr(2) to getprocnr(2); - clean up getepinfo(2); - change all libsys calls that used _syscall to use _taskcall, so as to avoid going through errno to pass errors; this is already how most calls work anyway, and many of the calls previously using _syscall were already assumed to return the actual error; - initialize request messages to zero, for future compatibility (note that this does not include PCI calls, which are in need of a much bigger overhaul, nor kernel calls); - clean up more of dead DS code as a side effect. Change-Id: I8788f54c68598fcf58e23486e270c2d749780ebb 2013-11-03 22:33:44 +01:00			`#include "syslib.h"`
			`#include <unistd.h>`
			`#include <string.h>`

			`int`
			`getprocnr(pid_t pid, endpoint_t *proc_e)`
			`{`
			`message m;`
			`int r;`

			`memset(&m, 0, sizeof(m));`
			`m.PM_GETPROCNR_PID = pid;`

Clean up interface to PM and VFS - introduce new call numbers, names, and field aliases; - initialize request messages to zero for all ABI calls; - format callnr.h in the same way as com.h; - redo call tables in both servers; - remove param.h namespace pollution in the servers; - make brk(2) go to VM directly, rather than through PM; - remove obsolete BRK, UTIME, and WAIT calls; - clean up path copying routine in VFS; - move remaining system calls from libminlib to libc; - correct some errno-related mistakes in libc routines. Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565 2013-11-04 22:48:08 +01:00			`if ((r = _taskcall(PM_PROC_NR, PM_GETPROCNR, &m)) < 0)`
libsys: various updates - move system calls for use by services from libminlib into libsys; - move srv_fork(2) and srv_kill(2) from RS and into libsys; - replace getprocnr(2) with sef_self(3); - rename previous getnprocnr(2) to getprocnr(2); - clean up getepinfo(2); - change all libsys calls that used _syscall to use _taskcall, so as to avoid going through errno to pass errors; this is already how most calls work anyway, and many of the calls previously using _syscall were already assumed to return the actual error; - initialize request messages to zero, for future compatibility (note that this does not include PCI calls, which are in need of a much bigger overhaul, nor kernel calls); - clean up more of dead DS code as a side effect. Change-Id: I8788f54c68598fcf58e23486e270c2d749780ebb 2013-11-03 22:33:44 +01:00			`return r;`

			`*proc_e = m.PM_GETPROCNR_ENDPT;`
			`return r;`
			`}`