This commit is contained in:
Zhengyu Gu 2010-12-11 13:46:36 -05:00
commit 86f7ad735d
124 changed files with 5920 additions and 6593 deletions

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@ -1,114 +0,0 @@
/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
/*
* Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK,
* search "GAMMA" for gamma specific changes.
*/
#ifndef _JAVA_H_
#define _JAVA_H_
/*
* Get system specific defines.
*/
#include "jni.h"
#include "java_md.h"
/*
* Pointers to the needed JNI invocation API, initialized by LoadJavaVM.
*/
typedef jint (JNICALL *CreateJavaVM_t)(JavaVM **pvm, void **env, void *args);
typedef jint (JNICALL *GetDefaultJavaVMInitArgs_t)(void *args);
typedef struct {
CreateJavaVM_t CreateJavaVM;
GetDefaultJavaVMInitArgs_t GetDefaultJavaVMInitArgs;
} InvocationFunctions;
/*
* Prototypes for launcher functions in the system specific java_md.c.
*/
jboolean
LoadJavaVM(const char *jvmpath, InvocationFunctions *ifn);
void
GetXUsagePath(char *buf, jint bufsize);
jboolean
GetApplicationHome(char *buf, jint bufsize);
const char *
GetArch();
void CreateExecutionEnvironment(int *_argc,
char ***_argv,
char jrepath[],
jint so_jrepath,
char jvmpath[],
jint so_jvmpath,
char **original_argv);
/*
* Report an error message to stderr or a window as appropriate. The
* flag always is set to JNI_TRUE if message is to be reported to both
* strerr and windows and set to JNI_FALSE if the message should only
* be sent to a window.
*/
void ReportErrorMessage(char * message, jboolean always);
void ReportErrorMessage2(char * format, char * string, jboolean always);
/*
* Report an exception which terminates the vm to stderr or a window
* as appropriate.
*/
void ReportExceptionDescription(JNIEnv * env);
jboolean RemovableMachineDependentOption(char * option);
void PrintMachineDependentOptions();
/*
* Functions defined in java.c and used in java_md.c.
*/
jint ReadKnownVMs(const char *jrepath, char * arch, jboolean speculative);
char *CheckJvmType(int *argc, char ***argv, jboolean speculative);
void* MemAlloc(size_t size);
/*
* Make launcher spit debug output.
*/
extern jboolean _launcher_debug;
/*
* This allows for finding classes from the VM's bootstrap class loader
* directly, FindClass uses the application class loader internally, this will
* cause unnecessary searching of the classpath for the required classes.
*/
typedef jclass (JNICALL FindClassFromBootLoader_t(JNIEnv *env,
const char *name,
jboolean throwError));
jclass FindBootStrapClass(JNIEnv *env, const char *classname);
#endif /* _JAVA_H_ */

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/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
/*
* Gamma (Hotspot internal engineering test) launcher based on 1.6.0-b28 JDK,
* search "GAMMA" for gamma specific changes.
*/
#ifndef JAVA_MD_H
#define JAVA_MD_H
#include <limits.h>
#include <unistd.h>
#include <sys/param.h>
#ifndef GAMMA
#include "manifest_info.h"
#endif
#define PATH_SEPARATOR ':'
#define FILESEP "/"
#define FILE_SEPARATOR '/'
#ifndef MAXNAMELEN
#define MAXNAMELEN PATH_MAX
#endif
#ifdef JAVA_ARGS
/*
* ApplicationHome is prepended to each of these entries; the resulting
* strings are concatenated (separated by PATH_SEPARATOR) and used as the
* value of -cp option to the launcher.
*/
#ifndef APP_CLASSPATH
#define APP_CLASSPATH { "/lib/tools.jar", "/classes" }
#endif
#endif
#ifdef HAVE_GETHRTIME
/*
* Support for doing cheap, accurate interval timing.
*/
#include <sys/time.h>
#define CounterGet() (gethrtime()/1000)
#define Counter2Micros(counts) (counts)
#else
#define CounterGet() (0)
#define Counter2Micros(counts) (1)
#endif /* HAVE_GETHRTIME */
/*
* Function prototypes.
*/
#ifndef GAMMA
char *LocateJRE(manifest_info* info);
void ExecJRE(char *jre, char **argv);
#endif
int UnsetEnv(char *name);
#endif

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/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "precompiled.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/hpi.hpp"
#include "runtime/os.hpp"
# include <sys/param.h>
# include <dlfcn.h>
typedef jint (JNICALL *init_t)(GetInterfaceFunc *, void *);
void hpi::initialize_get_interface(vm_calls_t *callbacks) {
char buf[JVM_MAXPATHLEN];
void *hpi_handle;
GetInterfaceFunc& getintf = _get_interface;
jint (JNICALL * DLL_Initialize)(GetInterfaceFunc *, void *);
if (HPILibPath && HPILibPath[0]) {
strncpy(buf, HPILibPath, JVM_MAXPATHLEN - 1);
buf[JVM_MAXPATHLEN - 1] = '\0';
} else {
const char *thread_type = "native_threads";
os::jvm_path(buf, JVM_MAXPATHLEN);
#ifdef PRODUCT
const char * hpi_lib = "/libhpi.so";
#else
char * ptr = strrchr(buf, '/');
assert(strstr(ptr, "/libjvm") == ptr, "invalid library name");
const char * hpi_lib = strstr(ptr, "_g") ? "/libhpi_g.so" : "/libhpi.so";
#endif
*(strrchr(buf, '/')) = '\0'; /* get rid of /libjvm.so */
char* p = strrchr(buf, '/');
if (p != NULL) p[1] = '\0'; /* get rid of hotspot */
strcat(buf, thread_type);
strcat(buf, hpi_lib);
}
if (TraceHPI) tty->print_cr("Loading HPI %s ", buf);
#ifdef SPARC
// On 64-bit Ubuntu Sparc RTLD_NOW leads to unresolved deps in libpthread.so
# define OPEN_MODE RTLD_LAZY
#else
// We use RTLD_NOW because of bug 4032715
# define OPEN_MODE RTLD_NOW
#endif
hpi_handle = dlopen(buf, OPEN_MODE);
#undef OPEN_MODE
if (hpi_handle == NULL) {
if (TraceHPI) tty->print_cr("HPI dlopen failed: %s", dlerror());
return;
}
DLL_Initialize = CAST_TO_FN_PTR(jint (JNICALL *)(GetInterfaceFunc *, void *),
dlsym(hpi_handle, "DLL_Initialize"));
if (TraceHPI && DLL_Initialize == NULL) tty->print_cr("HPI dlsym of DLL_Initialize failed: %s", dlerror());
if (DLL_Initialize == NULL ||
(*DLL_Initialize)(&getintf, callbacks) < 0) {
if (TraceHPI) tty->print_cr("HPI DLL_Initialize failed");
return;
}
if (TraceHPI) tty->print_cr("HPI loaded successfully");
}

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@ -1,229 +0,0 @@
/*
* Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef OS_LINUX_VM_HPI_LINUX_HPP
#define OS_LINUX_VM_HPI_LINUX_HPP
//
// Because the interruptible IO has been dropped for HotSpot/Linux,
// the following HPI interface is very different from HotSparc.
//
#include <unistd.h>
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/ioctl.h>
#include <netdb.h>
// HPI_FileInterface
inline int hpi::close(int fd) {
return ::close(fd);
}
inline size_t hpi::read(int fd, void *buf, unsigned int nBytes) {
size_t res;
RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);
return res;
}
inline size_t hpi::write(int fd, const void *buf, unsigned int nBytes) {
size_t res;
RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);
return res;
}
// HPI_SocketInterface
inline int hpi::socket_close(int fd) {
return ::close(fd);
}
inline int hpi::socket(int domain, int type, int protocol) {
return ::socket(domain, type, protocol);
}
inline int hpi::recv(int fd, char *buf, int nBytes, int flags) {
RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, (unsigned int) flags));
}
inline int hpi::send(int fd, char *buf, int nBytes, int flags) {
RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, (unsigned int) flags));
}
inline int hpi::raw_send(int fd, char *buf, int nBytes, int flags) {
return send(fd, buf, nBytes, flags);
}
inline int hpi::timeout(int fd, long timeout) {
julong prevtime,newtime;
struct timeval t;
gettimeofday(&t, NULL);
prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
for(;;) {
struct pollfd pfd;
pfd.fd = fd;
pfd.events = POLLIN | POLLERR;
int res = ::poll(&pfd, 1, timeout);
if (res == OS_ERR && errno == EINTR) {
// On Linux any value < 0 means "forever"
if(timeout >= 0) {
gettimeofday(&t, NULL);
newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
timeout -= newtime - prevtime;
if(timeout <= 0)
return OS_OK;
prevtime = newtime;
}
} else
return res;
}
}
inline int hpi::listen(int fd, int count) {
return ::listen(fd, count);
}
inline int hpi::connect(int fd, struct sockaddr *him, int len) {
RESTARTABLE_RETURN_INT(::connect(fd, him, len));
}
inline int hpi::accept(int fd, struct sockaddr *him, int *len) {
// This cast is from int to unsigned int on linux. Since we
// only pass the parameter "len" around the vm and don't try to
// fetch it's value, this cast is safe for now. The java.net group
// may need and want to change this interface someday if socklen_t goes
// to 64 bits on some platform that we support.
// Linux doc says this can't return EINTR, unlike accept() on Solaris
return ::accept(fd, him, (socklen_t *)len);
}
inline int hpi::recvfrom(int fd, char *buf, int nBytes, int flags,
sockaddr *from, int *fromlen) {
RESTARTABLE_RETURN_INT(::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen));
}
inline int hpi::sendto(int fd, char *buf, int len, int flags,
struct sockaddr *to, int tolen) {
RESTARTABLE_RETURN_INT(::sendto(fd, buf, len, (unsigned int) flags, to, tolen));
}
inline int hpi::socket_available(int fd, jint *pbytes) {
// Linux doc says EINTR not returned, unlike Solaris
int ret = ::ioctl(fd, FIONREAD, pbytes);
//%% note ioctl can return 0 when successful, JVM_SocketAvailable
// is expected to return 0 on failure and 1 on success to the jdk.
return (ret < 0) ? 0 : 1;
}
// following methods have been updated to avoid problems in
// hpi's sockets calls based on sys_api_td.c (JDK1.3)
/*
HPIDECL(socket_shutdown, "socket_shutdown", _socket, SocketShutdown,
int, "%d",
(int fd, int howto),
("fd = %d, howto = %d", fd, howto),
(fd, howto));
*/
inline int hpi::socket_shutdown(int fd, int howto){
return ::shutdown(fd, howto);
}
/*
HPIDECL(bind, "bind", _socket, Bind,
int, "%d",
(int fd, struct sockaddr *him, int len),
("fd = %d, him = %p, len = %d",
fd, him, len),
(fd, him, len));
*/
inline int hpi::bind(int fd, struct sockaddr *him, int len){
return ::bind(fd, him, len);
}
/*
HPIDECL(get_sock_name, "get_sock_name", _socket, GetSocketName,
int, "%d",
(int fd, struct sockaddr *him, int *len),
("fd = %d, him = %p, len = %p",
fd, him, len),
(fd, him, len));
*/
inline int hpi::get_sock_name(int fd, struct sockaddr *him, int *len){
return ::getsockname(fd, him, (socklen_t *)len);
}
/*
HPIDECL(get_host_name, "get_host_name", _socket, GetHostName, int, "%d",
(char *hostname, int namelen),
("hostname = %p, namelen = %d",
hostname, namelen),
(hostname, namelen));
*/
inline int hpi::get_host_name(char* name, int namelen){
return ::gethostname(name, namelen);
}
/*
HPIDECL(get_sock_opt, "get_sock_opt", _socket, SocketGetOption, int, "%d",
(int fd, int level, int optname, char *optval, int* optlen),
("fd = %d, level = %d, optname = %d, optval = %p, optlen = %p",
fd, level, optname, optval, optlen),
(fd, level, optname, optval, optlen));
*/
inline int hpi::get_sock_opt(int fd, int level, int optname,
char *optval, int* optlen){
return ::getsockopt(fd, level, optname, optval, (socklen_t *)optlen);
}
/*
HPIDECL(set_sock_opt, "set_sock_opt", _socket, SocketSetOption, int, "%d",
(int fd, int level, int optname, const char *optval, int optlen),
("fd = %d, level = %d, optname = %d, optval = %p, optlen = %d",
fd, level, optname, optval, optlen),
(fd, level, optname, optval, optlen));
*/
inline int hpi::set_sock_opt(int fd, int level, int optname,
const char *optval, int optlen){
return ::setsockopt(fd, level, optname, optval, optlen);
}
// Reconciliation History
// hpi_solaris.hpp 1.9 99/08/30 16:31:23
// End
#endif // OS_LINUX_VM_HPI_LINUX_HPP

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@ -44,7 +44,6 @@
#include "runtime/arguments.hpp"
#include "runtime/extendedPC.hpp"
#include "runtime/globals.hpp"
#include "runtime/hpi.hpp"
#include "runtime/interfaceSupport.hpp"
#include "runtime/java.hpp"
#include "runtime/javaCalls.hpp"
@ -1566,6 +1565,24 @@ void os::die() {
// unused on linux for now.
void os::set_error_file(const char *logfile) {}
// This method is a copy of JDK's sysGetLastErrorString
// from src/solaris/hpi/src/system_md.c
size_t os::lasterror(char *buf, size_t len) {
if (errno == 0) return 0;
const char *s = ::strerror(errno);
size_t n = ::strlen(s);
if (n >= len) {
n = len - 1;
}
::strncpy(buf, s, n);
buf[n] = '\0';
return n;
}
intx os::current_thread_id() { return (intx)pthread_self(); }
int os::current_process_id() {
@ -1939,19 +1956,19 @@ void* os::dll_lookup(void* handle, const char* name) {
}
bool _print_ascii_file(const char* filename, outputStream* st) {
int fd = open(filename, O_RDONLY);
static bool _print_ascii_file(const char* filename, outputStream* st) {
int fd = ::open(filename, O_RDONLY);
if (fd == -1) {
return false;
}
char buf[32];
int bytes;
while ((bytes = read(fd, buf, sizeof(buf))) > 0) {
while ((bytes = ::read(fd, buf, sizeof(buf))) > 0) {
st->print_raw(buf, bytes);
}
close(fd);
::close(fd);
return true;
}
@ -2229,8 +2246,6 @@ void os::jvm_path(char *buf, jint buflen) {
// Use current module name "libjvm[_g].so" instead of
// "libjvm"debug_only("_g")".so" since for fastdebug version
// we should have "libjvm.so" but debug_only("_g") adds "_g"!
// It is used when we are choosing the HPI library's name
// "libhpi[_g].so" in hpi::initialize_get_interface().
len = strlen(buf);
snprintf(buf + len, buflen-len, "/hotspot/libjvm%s.so", p);
} else {
@ -2414,18 +2429,18 @@ void linux_wrap_code(char* base, size_t size) {
os::get_temp_directory(), os::current_process_id(), num);
unlink(buf);
int fd = open(buf, O_CREAT | O_RDWR, S_IRWXU);
int fd = ::open(buf, O_CREAT | O_RDWR, S_IRWXU);
if (fd != -1) {
off_t rv = lseek(fd, size-2, SEEK_SET);
off_t rv = ::lseek(fd, size-2, SEEK_SET);
if (rv != (off_t)-1) {
if (write(fd, "", 1) == 1) {
if (::write(fd, "", 1) == 1) {
mmap(base, size,
PROT_READ|PROT_WRITE|PROT_EXEC,
MAP_PRIVATE|MAP_FIXED|MAP_NORESERVE, fd, 0);
}
}
close(fd);
::close(fd);
unlink(buf);
}
}
@ -4057,13 +4072,6 @@ jint os::init_2(void)
// Initialize lock used to serialize thread creation (see os::create_thread)
Linux::set_createThread_lock(new Mutex(Mutex::leaf, "createThread_lock", false));
// Initialize HPI.
jint hpi_result = hpi::initialize();
if (hpi_result != JNI_OK) {
tty->print_cr("There was an error trying to initialize the HPI library.");
return hpi_result;
}
// at-exit methods are called in the reverse order of their registration.
// atexit functions are called on return from main or as a result of a
// call to exit(3C). There can be only 32 of these functions registered
@ -4261,7 +4269,7 @@ int os::stat(const char *path, struct stat *sbuf) {
errno = ENAMETOOLONG;
return -1;
}
hpi::native_path(strcpy(pathbuf, path));
os::native_path(strcpy(pathbuf, path));
return ::stat(pathbuf, sbuf);
}
@ -4293,6 +4301,85 @@ bool os::dir_is_empty(const char* path) {
return result;
}
// This code originates from JDK's sysOpen and open64_w
// from src/solaris/hpi/src/system_md.c
#ifndef O_DELETE
#define O_DELETE 0x10000
#endif
// Open a file. Unlink the file immediately after open returns
// if the specified oflag has the O_DELETE flag set.
// O_DELETE is used only in j2se/src/share/native/java/util/zip/ZipFile.c
int os::open(const char *path, int oflag, int mode) {
if (strlen(path) > MAX_PATH - 1) {
errno = ENAMETOOLONG;
return -1;
}
int fd;
int o_delete = (oflag & O_DELETE);
oflag = oflag & ~O_DELETE;
fd = ::open64(path, oflag, mode);
if (fd == -1) return -1;
//If the open succeeded, the file might still be a directory
{
struct stat64 buf64;
int ret = ::fstat64(fd, &buf64);
int st_mode = buf64.st_mode;
if (ret != -1) {
if ((st_mode & S_IFMT) == S_IFDIR) {
errno = EISDIR;
::close(fd);
return -1;
}
} else {
::close(fd);
return -1;
}
}
/*
* All file descriptors that are opened in the JVM and not
* specifically destined for a subprocess should have the
* close-on-exec flag set. If we don't set it, then careless 3rd
* party native code might fork and exec without closing all
* appropriate file descriptors (e.g. as we do in closeDescriptors in
* UNIXProcess.c), and this in turn might:
*
* - cause end-of-file to fail to be detected on some file
* descriptors, resulting in mysterious hangs, or
*
* - might cause an fopen in the subprocess to fail on a system
* suffering from bug 1085341.
*
* (Yes, the default setting of the close-on-exec flag is a Unix
* design flaw)
*
* See:
* 1085341: 32-bit stdio routines should support file descriptors >255
* 4843136: (process) pipe file descriptor from Runtime.exec not being closed
* 6339493: (process) Runtime.exec does not close all file descriptors on Solaris 9
*/
#ifdef FD_CLOEXEC
{
int flags = ::fcntl(fd, F_GETFD);
if (flags != -1)
::fcntl(fd, F_SETFD, flags | FD_CLOEXEC);
}
#endif
if (o_delete != 0) {
::unlink(path);
}
return fd;
}
// create binary file, rewriting existing file if required
int os::create_binary_file(const char* path, bool rewrite_existing) {
int oflags = O_WRONLY | O_CREAT;
@ -4312,6 +4399,40 @@ jlong os::seek_to_file_offset(int fd, jlong offset) {
return (jlong)::lseek64(fd, (off64_t)offset, SEEK_SET);
}
// This code originates from JDK's sysAvailable
// from src/solaris/hpi/src/native_threads/src/sys_api_td.c
int os::available(int fd, jlong *bytes) {
jlong cur, end;
int mode;
struct stat64 buf64;
if (::fstat64(fd, &buf64) >= 0) {
mode = buf64.st_mode;
if (S_ISCHR(mode) || S_ISFIFO(mode) || S_ISSOCK(mode)) {
/*
* XXX: is the following call interruptible? If so, this might
* need to go through the INTERRUPT_IO() wrapper as for other
* blocking, interruptible calls in this file.
*/
int n;
if (::ioctl(fd, FIONREAD, &n) >= 0) {
*bytes = n;
return 1;
}
}
}
if ((cur = ::lseek64(fd, 0L, SEEK_CUR)) == -1) {
return 0;
} else if ((end = ::lseek64(fd, 0L, SEEK_END)) == -1) {
return 0;
} else if (::lseek64(fd, cur, SEEK_SET) == -1) {
return 0;
}
*bytes = end - cur;
return 1;
}
// Map a block of memory.
char* os::map_memory(int fd, const char* file_name, size_t file_offset,
char *addr, size_t bytes, bool read_only,
@ -4538,7 +4659,7 @@ void os::pause() {
int fd = ::open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (fd != -1) {
struct stat buf;
close(fd);
::close(fd);
while (::stat(filename, &buf) == 0) {
(void)::poll(NULL, 0, 100);
}

View file

@ -40,6 +40,14 @@
# include "orderAccess_linux_zero.inline.hpp"
#endif
// System includes
#include <unistd.h>
#include <sys/socket.h>
#include <sys/poll.h>
#include <sys/ioctl.h>
#include <netdb.h>
inline void* os::thread_local_storage_at(int index) {
return pthread_getspecific((pthread_key_t)index);
}
@ -93,6 +101,12 @@ inline void os::split_reserved_memory(char *base, size_t size,
inline void os::bang_stack_shadow_pages() {
}
inline void os::dll_unload(void *lib) {
::dlclose(lib);
}
inline const int os::default_file_open_flags() { return 0;}
inline DIR* os::opendir(const char* dirname)
{
assert(dirname != NULL, "just checking");
@ -104,6 +118,22 @@ inline int os::readdir_buf_size(const char *path)
return NAME_MAX + sizeof(dirent) + 1;
}
inline jlong os::lseek(int fd, jlong offset, int whence) {
return (jlong) ::lseek64(fd, offset, whence);
}
inline int os::fsync(int fd) {
return ::fsync(fd);
}
inline char* os::native_path(char *path) {
return path;
}
inline int os::ftruncate(int fd, jlong length) {
return ::ftruncate64(fd, length);
}
inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf)
{
dirent* p;
@ -121,9 +151,8 @@ inline struct dirent* os::readdir(DIR* dirp, dirent *dbuf)
return p;
}
inline int os::closedir(DIR *dirp)
{
assert(dirp != NULL, "just checking");
inline int os::closedir(DIR *dirp) {
assert(dirp != NULL, "argument is NULL");
return ::closedir(dirp);
}
@ -142,4 +171,139 @@ inline int os::closedir(DIR *dirp)
inline bool os::numa_has_static_binding() { return true; }
inline bool os::numa_has_group_homing() { return false; }
inline size_t os::restartable_read(int fd, void *buf, unsigned int nBytes) {
size_t res;
RESTARTABLE( (size_t) ::read(fd, buf, (size_t) nBytes), res);
return res;
}
inline size_t os::write(int fd, const void *buf, unsigned int nBytes) {
size_t res;
RESTARTABLE((size_t) ::write(fd, buf, (size_t) nBytes), res);
return res;
}
inline int os::close(int fd) {
return ::close(fd);
}
inline int os::socket_close(int fd) {
return ::close(fd);
}
inline int os::socket(int domain, int type, int protocol) {
return ::socket(domain, type, protocol);
}
inline int os::recv(int fd, char *buf, int nBytes, int flags) {
RESTARTABLE_RETURN_INT(::recv(fd, buf, nBytes, (unsigned int) flags));
}
inline int os::send(int fd, char *buf, int nBytes, int flags) {
RESTARTABLE_RETURN_INT(::send(fd, buf, nBytes, (unsigned int) flags));
}
inline int os::raw_send(int fd, char *buf, int nBytes, int flags) {
return os::send(fd, buf, nBytes, flags);
}
inline int os::timeout(int fd, long timeout) {
julong prevtime,newtime;
struct timeval t;
gettimeofday(&t, NULL);
prevtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
for(;;) {
struct pollfd pfd;
pfd.fd = fd;
pfd.events = POLLIN | POLLERR;
int res = ::poll(&pfd, 1, timeout);
if (res == OS_ERR && errno == EINTR) {
// On Linux any value < 0 means "forever"
if(timeout >= 0) {
gettimeofday(&t, NULL);
newtime = ((julong)t.tv_sec * 1000) + t.tv_usec / 1000;
timeout -= newtime - prevtime;
if(timeout <= 0)
return OS_OK;
prevtime = newtime;
}
} else
return res;
}
}
inline int os::listen(int fd, int count) {
return ::listen(fd, count);
}
inline int os::connect(int fd, struct sockaddr *him, int len) {
RESTARTABLE_RETURN_INT(::connect(fd, him, len));
}
inline int os::accept(int fd, struct sockaddr *him, int *len) {
// This cast is from int to unsigned int on linux. Since we
// only pass the parameter "len" around the vm and don't try to
// fetch it's value, this cast is safe for now. The java.net group
// may need and want to change this interface someday if socklen_t goes
// to 64 bits on some platform that we support.
// Linux doc says this can't return EINTR, unlike accept() on Solaris
return ::accept(fd, him, (socklen_t *)len);
}
inline int os::recvfrom(int fd, char *buf, int nBytes, int flags,
sockaddr *from, int *fromlen) {
RESTARTABLE_RETURN_INT(::recvfrom(fd, buf, nBytes, (unsigned int) flags, from, (socklen_t *)fromlen));
}
inline int os::sendto(int fd, char *buf, int len, int flags,
struct sockaddr *to, int tolen) {
RESTARTABLE_RETURN_INT(::sendto(fd, buf, len, (unsigned int) flags, to, tolen));
}
inline int os::socket_available(int fd, jint *pbytes) {
// Linux doc says EINTR not returned, unlike Solaris
int ret = ::ioctl(fd, FIONREAD, pbytes);
//%% note ioctl can return 0 when successful, JVM_SocketAvailable
// is expected to return 0 on failure and 1 on success to the jdk.
return (ret < 0) ? 0 : 1;
}
inline int os::socket_shutdown(int fd, int howto){
return ::shutdown(fd, howto);
}
inline int os::bind(int fd, struct sockaddr *him, int len){
return ::bind(fd, him, len);
}
inline int os::get_sock_name(int fd, struct sockaddr *him, int *len){
return ::getsockname(fd, him, (socklen_t *)len);
}
inline int os::get_host_name(char* name, int namelen){
return ::gethostname(name, namelen);
}
inline struct hostent* os::get_host_by_name(char* name) {
return ::gethostbyname(name);
}
inline int os::get_sock_opt(int fd, int level, int optname,
char *optval, int* optlen){
return ::getsockopt(fd, level, optname, optval, (socklen_t *)optlen);
}
inline int os::set_sock_opt(int fd, int level, int optname,
const char *optval, int optlen){
return ::setsockopt(fd, level, optname, optval, optlen);
}
#endif // OS_LINUX_VM_OS_LINUX_INLINE_HPP