From ffec15fdd967c4c40b537f1406a7b515818016b3 Mon Sep 17 00:00:00 2001
From: Michael Bayne <mdb@threerings.net>
Date: Mon, 8 Aug 2005 19:00:33 +0000
Subject: [PATCH] We need to build libunsafe.so for FreeBSD.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3674 542714f4-19e9-0310-aa3c-eee0fc999fb1
---
 build.xml                                     |   2 +-
 .../threerings/util/unsafe/FreeBSD/Makefile   |  45 ++++++++
 .../com_threerings_util_unsafe_Unsafe.c       |  97 ++++++++++++++++++
 .../util/unsafe/FreeBSD/libunsafe.so          | Bin 0 -> 6809 bytes
 4 files changed, 143 insertions(+), 1 deletion(-)
 create mode 100644 src/java/com/threerings/util/unsafe/FreeBSD/Makefile
 create mode 100644 src/java/com/threerings/util/unsafe/FreeBSD/com_threerings_util_unsafe_Unsafe.c
 create mode 100755 src/java/com/threerings/util/unsafe/FreeBSD/libunsafe.so

diff --git a/build.xml b/build.xml
index d9e6993b6..0272177d4 100644
--- a/build.xml
+++ b/build.xml
@@ -137,7 +137,7 @@
      executable="make"><arg line="install"/></exec>
     <exec os="Linux" dir="src/java/com/threerings/util/keybd/Linux" 
      executable="make"><arg line="install"/></exec>
-    <exec os="Linux" dir="src/java/com/threerings/util/unsafe/Linux" 
+    <exec dir="src/java/com/threerings/util/unsafe/${os.name}" 
      executable="make"><arg line="install"/></exec>
   </target>
 
diff --git a/src/java/com/threerings/util/unsafe/FreeBSD/Makefile b/src/java/com/threerings/util/unsafe/FreeBSD/Makefile
new file mode 100644
index 000000000..39a78063f
--- /dev/null
+++ b/src/java/com/threerings/util/unsafe/FreeBSD/Makefile
@@ -0,0 +1,45 @@
+#
+# $Id: Makefile 3332 2005-02-03 01:30:33Z mdb $
+
+#
+# Executable definitions
+
+CC=gcc
+RM=rm
+CP=cp
+MKDIR=mkdir
+
+#
+# Directory definitions
+
+ROOT=../../../../../../..
+LIBRARIES_PATH=
+OSINCDIR!=uname -s | tr 'A-Z' 'a-z'
+INSTALL_PATH=${ROOT}/dist/lib/i386-FreeBSD
+
+#
+# Parameter and file definitions
+
+INCLUDES=-I.. -I${JAVA_HOME}/include -I${JAVA_HOME}/include/${OSINCDIR}
+LIBRARIES=
+TARGET=libunsafe.so
+
+#
+# Target definitions
+
+all: ${TARGET}
+
+install: ${TARGET}
+	@${MKDIR} -p ${INSTALL_PATH}
+	cp ${TARGET} ${INSTALL_PATH}
+
+${TARGET}: com_threerings_util_unsafe_Unsafe.c
+	@echo "Compiling Unsafe.c"
+	@${CC} ${INCLUDES} -c com_threerings_util_unsafe_Unsafe.c \
+	    -o com_threerings_util_unsafe_Unsafe.o
+	@echo "Creating libunsafe.so"
+	@${CC} -o ${TARGET} com_threerings_util_unsafe_Unsafe.o \
+	    ${LIBRARIES} ${LIBRARIES_PATH} -shared
+
+clean:
+	-${RM} -f *.o ${TARGET}
diff --git a/src/java/com/threerings/util/unsafe/FreeBSD/com_threerings_util_unsafe_Unsafe.c b/src/java/com/threerings/util/unsafe/FreeBSD/com_threerings_util_unsafe_Unsafe.c
new file mode 100644
index 000000000..04ac0526c
--- /dev/null
+++ b/src/java/com/threerings/util/unsafe/FreeBSD/com_threerings_util_unsafe_Unsafe.c
@@ -0,0 +1,97 @@
+/*
+ * $Id: com_threerings_util_unsafe_Unsafe.c 3653 2005-07-21 19:10:08Z mdb $
+ */
+
+#include <stdio.h>
+#include <jni.h>
+#include <jvmpi.h>
+
+#include <errno.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "com_threerings_util_unsafe_Unsafe.h"
+
+/* global jvmpi interface pointer */
+static JVMPI_Interface* jvmpi;
+
+/** A sleep method that uses select(). This seems to have about 10ms
+ * granularity where nanosleep() has about 20ms. Sigh. */
+static int select_sleep (int millisecs)
+{
+    fd_set dummy;
+    struct timeval toWait;
+    FD_ZERO(&dummy);
+    toWait.tv_sec = millisecs / 1000;
+    toWait.tv_usec = (millisecs % 1000) * 1000;
+    return select(0, &dummy, NULL, NULL, &toWait);
+}
+
+JNIEXPORT void JNICALL
+Java_com_threerings_util_unsafe_Unsafe_enableGC (JNIEnv* env, jclass clazz)
+{
+    jvmpi->EnableGC();
+}
+
+JNIEXPORT void JNICALL
+Java_com_threerings_util_unsafe_Unsafe_disableGC (JNIEnv* env, jclass clazz)
+{
+    jvmpi->DisableGC();
+}
+
+JNIEXPORT void JNICALL
+Java_com_threerings_util_unsafe_Unsafe_nativeSleep (
+    JNIEnv* env, jclass clazz, jint millis)
+{
+/*     struct timespec tmspec; */
+/*     tmspec.tv_sec = millis/1000; */
+/*     tmspec.tv_nsec = (millis%1000)*1000000; */
+/*     if (nanosleep(&tmspec, NULL) < 0) { */
+/*         fprintf(stderr, "nanosleep() failed: %s\n", strerror(errno)); */
+/*     } */
+    if (select_sleep(millis) < 0) {
+        fprintf(stderr, "select_sleep() failed: %s\n", strerror(errno));
+    }
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_threerings_util_unsafe_Unsafe_nativeSetuid (
+    JNIEnv* env, jclass clazz, jint uid)
+{
+    if (setuid((uid_t)uid) != 0) {
+        fprintf(stderr, "setuid(%d) failed: %s\n", uid, strerror(errno));
+        return JNI_FALSE;
+    }
+    return JNI_TRUE;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_threerings_util_unsafe_Unsafe_nativeSetgid (
+    JNIEnv* env, jclass clazz, jint gid)
+{
+    if (setgid((gid_t)gid) != 0) {
+        fprintf(stderr, "setgid(%d) failed: %s\n", gid, strerror(errno));
+        return JNI_FALSE;
+    }
+    return JNI_TRUE;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_com_threerings_util_unsafe_Unsafe_init (JNIEnv* env, jclass clazz)
+{
+    JavaVM* jvm;
+
+    if ((*env)->GetJavaVM(env, &jvm) > 0) {
+        fprintf(stderr, "Failed to get JavaVM from env.\n");
+        return JNI_FALSE;
+    }
+
+    /* get jvmpi interface pointer */
+    if (((*jvm)->GetEnv(jvm, (void**)&jvmpi, JVMPI_VERSION_1)) < 0) {
+        fprintf(stderr, "Failed to get JVMPI from JavaVM.\n");
+        return JNI_FALSE;
+    }
+
+    return JNI_TRUE;
+}
diff --git a/src/java/com/threerings/util/unsafe/FreeBSD/libunsafe.so b/src/java/com/threerings/util/unsafe/FreeBSD/libunsafe.so
new file mode 100755
index 0000000000000000000000000000000000000000..2a6a9e53686bc79615cf738bf7bd508f7d432f8d
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