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* [SCM] master: Change Status to a scanner class like Stat; update.
@ 2008-02-14 16:38 cagney
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From: cagney @ 2008-02-14 16:38 UTC (permalink / raw)
To: frysk-cvs
The branch, master has been updated
via e5a826018181d156023024ce27a707bbfb62c0a0 (commit)
from 6f90ccc376e5bc50e2ad3a6cd97f1424660d6329 (commit)
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- Log -----------------------------------------------------------------
commit e5a826018181d156023024ce27a707bbfb62c0a0
Author: Andrew Cagney <cagney@redhat.com>
Date: Thu Feb 14 11:38:11 2008 -0500
Change Status to a scanner class like Stat; update.
frysk-core/frysk/isa/corefiles/ChangeLog
2008-02-14 Andrew Cagney <cagney@redhat.com>
* IA32LinuxElfCorefile.java: Delete use of Status.
* PPC64LinuxElfCorefile.java: Ditto.
* PPC32LinuxElfCorefile.java: Ditto.
* X8664LinuxElfCorefile.java: Ditto.
frysk-core/frysk/proc/live/ChangeLog
2008-02-14 Andrew Cagney <cagney@redhat.com>
* LinuxPtraceProc.java: Update to match Status.
* LinuxPtraceTaskState.java: Ditto.
frysk-sys/frysk/sys/proc/ChangeLog
2008-02-14 Andrew Cagney <cagney@redhat.com>
* Status.java: Rewrite.
* TestStatus.java: Update.
* cni/Status.cxx (Status::scan): Update.
-----------------------------------------------------------------------
Summary of changes:
frysk-core/frysk/isa/corefiles/ChangeLog | 7 +
.../frysk/isa/corefiles/IA32LinuxElfCorefile.java | 5 +-
.../frysk/isa/corefiles/PPC32LinuxElfCorefile.java | 5 +-
.../frysk/isa/corefiles/PPC64LinuxElfCorefile.java | 5 +-
.../frysk/isa/corefiles/X8664LinuxElfCorefile.java | 5 +-
frysk-core/frysk/proc/live/ChangeLog | 3 +
frysk-core/frysk/proc/live/LinuxPtraceProc.java | 8 +-
.../frysk/proc/live/LinuxPtraceTaskState.java | 6 +-
frysk-sys/frysk/sys/proc/ChangeLog | 6 +
frysk-sys/frysk/sys/proc/Status.java | 116 ++++++--------------
frysk-sys/frysk/sys/proc/TestStatus.java | 55 ++++-----
frysk-sys/frysk/sys/proc/cni/Status.cxx | 82 +++++++++++++-
12 files changed, 168 insertions(+), 135 deletions(-)
First 500 lines of diff:
diff --git a/frysk-core/frysk/isa/corefiles/ChangeLog b/frysk-core/frysk/isa/corefiles/ChangeLog
index da92ce7..086d81c 100644
--- a/frysk-core/frysk/isa/corefiles/ChangeLog
+++ b/frysk-core/frysk/isa/corefiles/ChangeLog
@@ -1,3 +1,10 @@
+2008-02-14 Andrew Cagney <cagney@redhat.com>
+
+ * IA32LinuxElfCorefile.java: Delete use of Status.
+ * PPC64LinuxElfCorefile.java: Ditto.
+ * PPC32LinuxElfCorefile.java: Ditto.
+ * X8664LinuxElfCorefile.java: Ditto.
+
2008-02-13 Andrew Cagney <cagney@redhat.com>
* IA32LinuxElfCorefile.java: Update to match Status.
diff --git a/frysk-core/frysk/isa/corefiles/IA32LinuxElfCorefile.java b/frysk-core/frysk/isa/corefiles/IA32LinuxElfCorefile.java
index fd2fe28..7fc5bcc 100644
--- a/frysk-core/frysk/isa/corefiles/IA32LinuxElfCorefile.java
+++ b/frysk-core/frysk/isa/corefiles/IA32LinuxElfCorefile.java
@@ -61,7 +61,6 @@ import frysk.proc.Task;
import frysk.sys.proc.AuxvBuilder;
import frysk.sys.proc.CmdLineBuilder;
import frysk.sys.proc.Stat;
-import frysk.sys.proc.Status;
/**
* LinuxElfCorefilex86. Extends LinuxCorefile. Fill in
@@ -120,8 +119,8 @@ public class IA32LinuxElfCorefile extends LinuxElfCorefile {
// Set rest of prpsinfo
prpsInfo.setPrFlag(processStat.flags);
- prpsInfo.setPrUid(Status.getUID(ProcessIdentifierFactory.create(pid)));
- prpsInfo.setPrGid(Status.getGID(ProcessIdentifierFactory.create(pid)));
+ prpsInfo.setPrUid(process.getUID());
+ prpsInfo.setPrGid(process.getGID());
prpsInfo.setPrPid(pid);
prpsInfo.setPrPpid(processStat.ppid.intValue());
diff --git a/frysk-core/frysk/isa/corefiles/PPC32LinuxElfCorefile.java b/frysk-core/frysk/isa/corefiles/PPC32LinuxElfCorefile.java
index 93cc4e0..e418179 100644
--- a/frysk-core/frysk/isa/corefiles/PPC32LinuxElfCorefile.java
+++ b/frysk-core/frysk/isa/corefiles/PPC32LinuxElfCorefile.java
@@ -65,7 +65,6 @@ import frysk.proc.Task;
import frysk.sys.proc.AuxvBuilder;
import frysk.sys.proc.CmdLineBuilder;
import frysk.sys.proc.Stat;
-import frysk.sys.proc.Status;
/**
* PPC32LinuxElfCorefile. Extends LinuxCorefile. Fill in
@@ -125,8 +124,8 @@ public class PPC32LinuxElfCorefile extends LinuxElfCorefile {
// Set rest of prpsinfo
prpsInfo.setPrFlag(processStat.flags);
- prpsInfo.setPrUid(Status.getUID(ProcessIdentifierFactory.create(pid)));
- prpsInfo.setPrGid(Status.getGID(ProcessIdentifierFactory.create(pid)));
+ prpsInfo.setPrUid(process.getUID());
+ prpsInfo.setPrGid(process.getGID());
prpsInfo.setPrPid(pid);
prpsInfo.setPrPpid(processStat.ppid.intValue());
diff --git a/frysk-core/frysk/isa/corefiles/PPC64LinuxElfCorefile.java b/frysk-core/frysk/isa/corefiles/PPC64LinuxElfCorefile.java
index 7fc9005..cf31acf 100644
--- a/frysk-core/frysk/isa/corefiles/PPC64LinuxElfCorefile.java
+++ b/frysk-core/frysk/isa/corefiles/PPC64LinuxElfCorefile.java
@@ -64,7 +64,6 @@ import frysk.proc.Task;
import frysk.sys.proc.AuxvBuilder;
import frysk.sys.proc.CmdLineBuilder;
import frysk.sys.proc.Stat;
-import frysk.sys.proc.Status;
/**
* PPC64LinuxElfCorefile. Extends LinuxCorefile. Fill in
@@ -124,8 +123,8 @@ public class PPC64LinuxElfCorefile extends LinuxElfCorefile {
// Set rest of prpsinfo
prpsInfo.setPrFlag(processStat.flags);
- prpsInfo.setPrUid(Status.getUID(ProcessIdentifierFactory.create(pid)));
- prpsInfo.setPrGid(Status.getGID(ProcessIdentifierFactory.create(pid)));
+ prpsInfo.setPrUid(process.getUID());
+ prpsInfo.setPrGid(process.getGID());
prpsInfo.setPrPid(pid);
prpsInfo.setPrPpid(processStat.ppid.intValue());
diff --git a/frysk-core/frysk/isa/corefiles/X8664LinuxElfCorefile.java b/frysk-core/frysk/isa/corefiles/X8664LinuxElfCorefile.java
index 6197f31..2a27a1b 100644
--- a/frysk-core/frysk/isa/corefiles/X8664LinuxElfCorefile.java
+++ b/frysk-core/frysk/isa/corefiles/X8664LinuxElfCorefile.java
@@ -60,7 +60,6 @@ import frysk.proc.Task;
import frysk.sys.proc.AuxvBuilder;
import frysk.sys.proc.CmdLineBuilder;
import frysk.sys.proc.Stat;
-import frysk.sys.proc.Status;
/**
* X8664LinuxElfCorefile. Extends LinuxCorefile. Fill in
@@ -120,8 +119,8 @@ public class X8664LinuxElfCorefile extends LinuxElfCorefile {
// Set rest of prpsinfo
prpsInfo.setPrFlag(processStat.flags);
- prpsInfo.setPrUid(Status.getUID(ProcessIdentifierFactory.create(pid)));
- prpsInfo.setPrGid(Status.getGID(ProcessIdentifierFactory.create(pid)));
+ prpsInfo.setPrUid(process.getUID());
+ prpsInfo.setPrGid(process.getGID());
prpsInfo.setPrPid(pid);
prpsInfo.setPrPpid(processStat.ppid.intValue());
diff --git a/frysk-core/frysk/proc/live/ChangeLog b/frysk-core/frysk/proc/live/ChangeLog
index 0cec713..d370c3e 100644
--- a/frysk-core/frysk/proc/live/ChangeLog
+++ b/frysk-core/frysk/proc/live/ChangeLog
@@ -1,5 +1,8 @@
2008-02-14 Andrew Cagney <cagney@redhat.com>
+ * LinuxPtraceProc.java: Update to match Status.
+ * LinuxPtraceTaskState.java: Ditto.
+
* LiveTask.java: Update to match Task.
* LinuxPtraceProc.java: Ditto.
* LinuxPtraceHost.java: Ditto.
diff --git a/frysk-core/frysk/proc/live/LinuxPtraceProc.java b/frysk-core/frysk/proc/live/LinuxPtraceProc.java
index 2c179c3..e5808f5 100644
--- a/frysk-core/frysk/proc/live/LinuxPtraceProc.java
+++ b/frysk-core/frysk/proc/live/LinuxPtraceProc.java
@@ -176,11 +176,15 @@ public class LinuxPtraceProc extends LiveProc {
}
public int getUID() {
- return Status.getUID(ProcessIdentifierFactory.create(getPid()));
+ Status status = new Status();
+ status.scan(ProcessIdentifierFactory.create(getPid()));
+ return status.uid;
}
public int getGID() {
- return Status.getGID(ProcessIdentifierFactory.create(getPid()));
+ Status status = new Status();
+ status.scan(ProcessIdentifierFactory.create(getPid()));
+ return status.gid;
}
/**
diff --git a/frysk-core/frysk/proc/live/LinuxPtraceTaskState.java b/frysk-core/frysk/proc/live/LinuxPtraceTaskState.java
index ff60e45..f84ab24 100644
--- a/frysk-core/frysk/proc/live/LinuxPtraceTaskState.java
+++ b/frysk-core/frysk/proc/live/LinuxPtraceTaskState.java
@@ -181,13 +181,15 @@ class LinuxPtraceTaskState extends State {
LinuxPtraceTaskState handleAttach(LinuxPtraceTask task) {
logger.log(Level.FINE, "{0} handleAttach\n", task);
task.sendAttach();
+ Status status = new Status();
+ status.scan(task.tid);
if (task.getProc().getMainTask() == task
- && Status.isStopped(task.tid)) {
+ && status.stoppedState) {
// The attach has been initiated on the main
// task of the process; the process state
// should transition to (T) TRACED. If it is
// instead (T) STOPPED then the process is
- // stuck (suspended), send it a SIGSTOP to
+ // stuck (suspended), send it a SIGCONT to
// unwedge it. /proc/status is used as that
// differentiates between STOPPED an TRACED.
logger.log(Level.FINE,
diff --git a/frysk-sys/frysk/sys/proc/ChangeLog b/frysk-sys/frysk/sys/proc/ChangeLog
index 4ebb3a3..0ba620c 100644
--- a/frysk-sys/frysk/sys/proc/ChangeLog
+++ b/frysk-sys/frysk/sys/proc/ChangeLog
@@ -1,3 +1,9 @@
+2008-02-14 Andrew Cagney <cagney@redhat.com>
+
+ * Status.java: Rewrite.
+ * TestStatus.java: Update.
+ * cni/Status.cxx (Status::scan): Update.
+
2008-02-13 Andrew Cagney <cagney@redhat.com>
* Status.java (getGID(ProcessIdentifier)): Replace getGID(int).
diff --git a/frysk-sys/frysk/sys/proc/Status.java b/frysk-sys/frysk/sys/proc/Status.java
index d3414e7..0590f4e 100644
--- a/frysk-sys/frysk/sys/proc/Status.java
+++ b/frysk-sys/frysk/sys/proc/Status.java
@@ -39,6 +39,7 @@
package frysk.sys.proc;
+import frysk.rsl.Log;
import frysk.sys.ProcessIdentifier;
/**
@@ -52,107 +53,56 @@ import frysk.sys.ProcessIdentifier;
*/
public class Status {
+ private static final Log fine = Log.fine(Status.class);
- private native static byte[] statusSlurp (int pid);
-
- /**
- * Converts a byte[] data structure to a
- * String[] data structure
- * @param byteBuffer[] - source byte byffer
- * @return String[] - converted String buffer
- */
- private static String[] byteBuffertoStringbuffer(byte[] byteBuffer) {
- String byteString = new String(byteBuffer);
- return byteString.split("\n");
+ public Status() {
}
+ public String toString() {
+ if (pid != null)
+ return "/proc/" + pid + "/status";
+ else
+ return super.toString();
+ }
+
+ public Status scan(ProcessIdentifier pid) {
+ fine.log(this, "stan", pid);
+ this.pid = pid;
+ return scan(pid.intValue());
+ }
+ private native Status scan(int pid);
/**
- * Given a byte[] buffer from /proc/$$/status
- * find and return either GID or UID.
- * @param idType - Type to return. Accepts Gid or Uid
- * @param byteidBuffer - buffer to search.
- * @return int either GID or UID of process, or -1 on error.
+ * For testing only; package private.
*/
- private static int getID(String idType, byte[] byteidBuffer) {
- // As fetching a GID/UID are very similar we just pass of the
- // search code to a simple lookup method
- String[] idBuffer = byteBuffertoStringbuffer(byteidBuffer);
- int idIndex = 5;
- int idIndexEnd = 0;
- for (int i=0; i<idBuffer.length; i++) {
- if (idBuffer[i].startsWith(idType)) {
- idIndexEnd = idIndex;
- for (int j=idIndex; j<idBuffer[i].length(); j++)
- if (idBuffer[i].charAt(j)=='\t')
- break;
- else
- idIndexEnd++;
- if (idIndex == idIndexEnd)
- return -1;
- else
- return Integer.parseInt(idBuffer[i].substring(idIndex,idIndexEnd));
- }
- }
- // if we get here, id not found in status
- return -1;
- }
+ native Status scan(byte[] buffer);
/**
- * Return the UID from a given buffer. Buffer
- * has to follow format of /proc/$$/status.
- * @param buffer - buffer search.
- * @return int - UID in buffer.
+ * Re-scan /proc/$$/status using the previous pid.
*/
- public static int getUID(byte[] buffer) {
- if (buffer != null)
- return getID("Uid", buffer);
- else
- return -1;
+ public Status rescan() {
+ return scan(pid.intValue());
}
+ public ProcessIdentifier pid;
+
/**
- * Return the UID from the /proc/$$/status
- * file according to the PID passed.
- * @param spid - PID of process to search.
- * @return int - UID of process PID.
+ * The UID from the /proc/$$/status file.
*/
- public static int getUID(ProcessIdentifier pid) {
- byte[] buffer = statusSlurp(pid.intValue());
- return getUID(buffer);
- }
+ public int uid;
/**
- * Return the GID from a given buffer. Buffer
- * has to follow format of /proc/$$/status.
- * @param buffer - buffer search.
- * @return int - GID in buffer.
+ * Return the GID from the /proc/$$/status file according to the
+ * PID passed.
*/
- public static int getGID(byte[] buffer) {
- if (buffer != null)
- return getID("Gid", buffer);
- else
- return -1;
- }
-
+ public int gid;
+
/**
- * Return the GID from the /proc/$$/status
- * file according to the PID passed.
- * @param spid - PID of process to search.
- * @return int - GID of process PID.
+ * The state from /proc/$$/status file.
*/
- public static int getGID(ProcessIdentifier pid) {
- byte[] buffer = statusSlurp(pid.intValue());
- return getGID(buffer);
- }
+ public char state;
/**
- * Returns true if the PID is in a stopped state.
+ * True if the PID is in a stopped state.
*/
- public static boolean isStopped(ProcessIdentifier pid) {
- byte[] buf = statusSlurp(pid.intValue());
- if (buf == null)
- return false; // lost task?
- String status = new String(buf);
- return status.indexOf("T (stopped)") >= 0;
- }
+ public boolean stoppedState;
}
diff --git a/frysk-sys/frysk/sys/proc/TestStatus.java b/frysk-sys/frysk/sys/proc/TestStatus.java
index e855a82..e826c64 100644
--- a/frysk-sys/frysk/sys/proc/TestStatus.java
+++ b/frysk-sys/frysk/sys/proc/TestStatus.java
@@ -40,21 +40,19 @@
package frysk.sys.proc;
import frysk.junit.TestCase;
+import frysk.sys.Pid;
/**
* Test the Status getUID() and getGID() a predefined set of
* <tt>/proc$$/status</tt> buffer.
*/
-public class TestStatus
- extends TestCase
-{
- public void testParseStatusGetID()
- {
+public class TestStatus extends TestCase {
+ public void testParseStatusGetID() {
// Construct valid status buffer
- String[] status = new String[] {
+ String[] statusBuf = new String[] {
"Name:\tgaim\n",
- "State:\tS (sleeping)\n",
+ "State:\tT (stopped)\n",
"SleepAVG:\t88%\n",
"Tgid:\t2765\n",
"Pid:\t2765\n",
@@ -87,31 +85,20 @@ public class TestStatus
"SigCgt:\t0000000180014407\n",
"CapInh:\t0000000000000000\n",
"CapPrm:\t0000000000000000\n",
- "CapEff:\t0000000000000000"};
+ "CapEff:\t0000000000000000\n"
+ };
- byte[] buf = TestLib.stringsToBytes (status);
+ byte[] buf = TestLib.stringsToBytes(statusBuf);
+ Status status = new Status().scan(buf);
+ assertNotNull("status", status);
// Test normal-expected results from a valid status buffer
- assertEquals ("Normal Process UID", 500, Status.getUID(buf));
- assertEquals ("Normal Process GID", 500, Status.getGID(buf));
+ assertEquals("Process UID", 500, status.uid);
+ assertEquals("Process GID", 500, status.gid);
+ assertEquals("Process Stopped State", true, status.stoppedState);
}
- public void testParseStatusNullBufferGetID()
- {
- // Test abnormal-expected results from invald status buffers
-
- // Test null buffer
-
- assertEquals("Null Buffer Process UID", -1,
- Status.getUID((byte[])null));
- assertEquals("Null Buffer Process GID", -1,
- Status.getGID((byte[])null));
-
- }
-
-
- public void testParseStatusInvalidBufferGetID()
- {
+ public void testParseStatusInvalidBufferGetID() {
// Test abnormal-expected results from invald status buffers
// Test non-null but invalid buffer
@@ -121,10 +108,18 @@ public class TestStatus
"We stuck, nor breath nor motion;\n",
"As idle as a painted ship\n",
"Upon a painted ocean."};
-
byte[] buf = TestLib.stringsToBytes(randomText);
+ Status status = new Status();
+ assertNull("scan", status.scan(buf));
+
+ assertEquals("Non null Buffer, invalid text Process UID", -1,
+ status.uid);
+ assertEquals("Non null Buffer, invalid text Process GID", -1,
+ status.gid);
+ }
- assertEquals("Non null Buffer, invalid text Process UID", -1, Status.getUID(buf));
- assertEquals("Non null Buffer, invalid text Process GID", -1, Status.getGID(buf));
+ public void testSelf() {
+ Status status = new Status();
+ assertNotNull("status value", status.scan(Pid.get()));
}
}
diff --git a/frysk-sys/frysk/sys/proc/cni/Status.cxx b/frysk-sys/frysk/sys/proc/cni/Status.cxx
index 62c4911..9cb6813 100644
--- a/frysk-sys/frysk/sys/proc/cni/Status.cxx
+++ b/frysk-sys/frysk/sys/proc/cni/Status.cxx
@@ -1,6 +1,6 @@
// This file is part of the program FRYSK.
//
-// Copyright 2006, Red Hat Inc.
+// Copyright 2006, 2008, Red Hat Inc.
//
// FRYSK is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
@@ -37,17 +37,87 @@
// version and license this file solely under the GPL without
// exception.
+#include <stdlib.h>
+#include <ctype.h>
+#include <stdio.h>
+
#include <gcj/cni.h>
#include "frysk/sys/proc/cni/slurp.hxx"
#include "frysk/sys/cni/Errno.hxx"
#include "frysk/sys/proc/Status.h"
+#include "frysk/rsl/Log.h"
+#include "frysk/rsl/cni/Log.hxx"
#include "java/lang/String.h"
-jbyteArray
-frysk::sys::proc::Status::statusSlurp (jint pid)
-{
- jbyteArray buf = slurp (pid, "status");
- return buf;
+static bool
+scan(const char** p, jint* val, const char* prefix) {
+ (*p) = strstr((*p), prefix);
+ if ((*p) == NULL)
+ return false;
+ (*p) += strlen(prefix);
+ char *endp;
+ (*val) = strtol((*p), &endp, 10);
+ if ((*p) == endp)
+ return false;
+ return true;
+}
+
+static frysk::sys::proc::Status*
+scan(const char *p, frysk::sys::proc::Status* const status,
+ frysk::rsl::Log* const fine) {
+ // Clear everything
+ status->state = '\0';
+ status->stoppedState = false;
+ status->uid = -1;
+ status->gid = -1;
+
+ // STATE (SUBSTATE)
+ const char *state = "\nState:";
+ p = strstr(p, state);
+ if (p == NULL)
+ return NULL;
+ p += strlen(state);
+ for (; (*p) != '\r' && (*p) != '\0'; p++) {
+ char c = (*p);
+ if (isspace(c))
+ continue;
+ if (strchr("RSDZTW", c) != NULL) {
+ status->state = c;
+ logf(fine, "state '%c'", c);
+ const char *stopped = " (stopped)";
+ status->stoppedState = strncmp(p + 1, stopped, strlen(stopped)) == 0;
+ logf(fine, "stopped %s", status->stoppedState ? "true" : "false");
+ break;
+ }
+ }
+ if (state == '\0')
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