From: Lionel Sambuc <lionel@minix3.org>
Date: Tue, 13 May 2014 13:05:05 +0000 (+0200)
Subject: Message type for PM_GETPID
X-Git-Tag: v3.3.0~280
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/roff.3.ps?a=commitdiff_plain;h=f63d2f0eafbbb416da37ed95c57b9ab8311f6015;p=minix.git

Message type for PM_GETPID

Change-Id: Ib3ff13ad9c9e30bde08d4cacb6905955ace73924
---

diff --git a/include/minix/callnr.h b/include/minix/callnr.h
index 8cfc1fcf0..fa149aae2 100644
--- a/include/minix/callnr.h
+++ b/include/minix/callnr.h
@@ -85,9 +85,6 @@
 #define PM_SIG_SET		m2_sigset /* sigset_t */
 #define PM_SIG_CTX		m2_p1	/* struct sigcontext * */
 
-/* Field names for the getppid(2) call. */
-#define PM_GETPID_PARENT	m2_i1	/* pid_t */
-
 /* Field names for the setsid(2) call. */
 #define PM_GETSID_PID		m1_i1	/* pid_t */
 
diff --git a/include/minix/ipc.h b/include/minix/ipc.h
index 9906261a1..bdd1758ea 100644
--- a/include/minix/ipc.h
+++ b/include/minix/ipc.h
@@ -575,6 +575,13 @@ typedef struct {
 } mess_pm_lc_getgid;
 _ASSERT_MSG_SIZE(mess_pm_lc_getgid);
 
+typedef struct {
+	pid_t parent_pid;
+
+	uint8_t padding[52];
+} mess_pm_lc_getpid;
+_ASSERT_MSG_SIZE(mess_pm_lc_getpid);
+
 typedef struct {
 	uid_t euid;
 
@@ -1092,6 +1099,7 @@ typedef struct {
 		mess_pm_lexec_exec_new	m_pm_lexec_exec_new;
 
 		mess_pm_lc_getgid	m_pm_lc_getgid;
+		mess_pm_lc_getpid	m_pm_lc_getpid;
 		mess_pm_lc_getuid	m_pm_lc_getuid;
 		mess_pm_lc_ptrace	m_pm_lc_ptrace;
 		mess_pm_lc_time		m_pm_lc_time;
diff --git a/lib/libc/sys-minix/getppid.c b/lib/libc/sys-minix/getppid.c
index 02c804ada..b3c58bdb0 100644
--- a/lib/libc/sys-minix/getppid.c
+++ b/lib/libc/sys-minix/getppid.c
@@ -15,6 +15,6 @@ pid_t getppid(void)
    * are not always successful and Minix returns the reserved value
    * (pid_t) -1 when there is an error.
    */
-  if (_syscall(PM_PROC_NR, PM_GETPID, &m) < 0) return ( (pid_t) -1);
-  return( (pid_t) m.PM_GETPID_PARENT);
+  if (_syscall(PM_PROC_NR, PM_GETPID, &m) < 0) return(-1);
+  return(m.m_pm_lc_getpid.parent_pid);
 }
diff --git a/servers/pm/getset.c b/servers/pm/getset.c
index ac4f2f78c..b5263c033 100644
--- a/servers/pm/getset.c
+++ b/servers/pm/getset.c
@@ -59,7 +59,7 @@ int do_get()
 
 	case PM_GETPID:
 		r = mproc[who_p].mp_pid;
-		rmp->mp_reply.PM_GETPID_PARENT = mproc[rmp->mp_parent].mp_pid;
+		rmp->mp_reply.m_pm_lc_getpid.parent_pid = mproc[rmp->mp_parent].mp_pid;
 		break;
 
 	case PM_GETPGRP: