/* * Copyright (c) 1998, 2005, 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. * */ /* * HotSpot integration note: * * This is a consolidation of these two files: * src/share/hpi/export/hpi.h 1.15 99/06/18 JDK1.3 beta build I * src/share/hpi/export/dll.h 1.3 98/09/15 JDK1.3 beta build I * from the classic VM. * * bool_t is a type in the classic VM, and we define it here, * but in the future this should be a jboolean. * * The files are included verbatim expect for local includes removed from hpi.h. */ #ifndef _JAVASOFT_HPI_H_ #define _JAVASOFT_HPI_H_ #ifdef __cplusplus extern "C" { #endif /* A classic VMism that should become a jboolean. Fix in 1.2.1? */ typedef enum { HPI_FALSE = 0, HPI_TRUE = 1 } bool_t; /* * DLL.H: A common interface for helper DLLs loaded by the VM. * Each library exports the main entry point "DLL_Initialize". Through * that function the programmer can obtain a function pointer which has * type "GetInterfaceFunc." Through the function pointer the programmer * can obtain other interfaces supported in the DLL. */ typedef jint (JNICALL * GetInterfaceFunc) (void **intfP, const char *name, jint ver); jint JNICALL DLL_Initialize(GetInterfaceFunc *, void *args); /* * Host Porting Interface. This defines the "porting layer" for * POSIX.1 compliant operating systems. */ /* * memory allocations */ typedef struct { /* * Malloc must return a unique pointer if size == 0. */ void * (*Malloc)(size_t size); void * (*Realloc)(void *ptr, size_t new_size); /* * Free must allow ptr == NULL to be a no-op. */ void (*Free)(void *ptr); /* * Calloc must return a unique pointer for if * n_item == 0 || item_size == 0. */ void * (*Calloc)(size_t n_item, size_t item_size); char * (*Strdup)(const char *str); void * (*MapMem)(size_t req_size, size_t *maped_size); void * (*UnmapMem)(void *req_addr, size_t req_size, size_t *unmap_size); /* * CommitMem should round the ptr down to the nearest page and * round the size up to the nearest page so that the committed * region is at least as large as the requested region. */ void * (*CommitMem)(void *ptr, size_t size, size_t *actual); /* * sysDecommitMem should round the ptr up to the nearest page and * round the size down to the nearest page so that the decommitted * region is no greater than the requested region. */ void * (*DecommitMem)(void *ptr, size_t size, size_t *actual); #define HPI_PAGE_ALIGNMENT (64 * 1024) void * (*AllocBlock)(size_t size, void **headP); void (*FreeBlock)(void *head); } HPI_MemoryInterface; /* * dynamic linking libraries */ typedef struct { void (*BuildLibName)(char *buf, int buf_len, char *path, const char *name); int (*BuildFunName)(char *name, int name_len, int arg_size, int en_idx); void * (*LoadLibrary)(const char *name, char *err_buf, int err_buflen); void (*UnloadLibrary)(void *lib); void * (*FindLibraryEntry)(void *lib, const char *name); } HPI_LibraryInterface; typedef void (*signal_handler_t)(int sig, void *siginfo, void *context); #define HPI_SIG_DFL (signal_handler_t)0 #define HPI_SIG_ERR (signal_handler_t)-1 #define HPI_SIG_IGN (signal_handler_t)1 typedef struct { char *name; /* name such as green/native threads. */ int isMP; } HPI_SysInfo; typedef struct { HPI_SysInfo * (*GetSysInfo)(void); long (*GetMilliTicks)(void); jlong (*TimeMillis)(void); signal_handler_t (*Signal)(int sig, signal_handler_t handler); void (*Raise)(int sig); void (*SignalNotify)(int sig); int (*SignalWait)(void); int (*Shutdown)(void); int (*SetLoggingLevel)(int level); bool_t (*SetMonitoringOn)(bool_t on); int (*GetLastErrorString)(char *buf, int len); } HPI_SystemInterface; /* * threads and monitors */ typedef struct sys_thread sys_thread_t; typedef struct sys_mon sys_mon_t; #define HPI_OK 0 #define HPI_ERR -1 #define HPI_INTRPT -2 /* Operation was interrupted */ #define HPI_TIMEOUT -3 /* A timer ran out */ #define HPI_NOMEM -5 /* Ran out of memory */ #define HPI_NORESOURCE -6 /* Ran out of some system resource */ /* There are three basic states: RUNNABLE, MONITOR_WAIT, and CONDVAR_WAIT. * When the thread is suspended in any of these states, the * HPI_THREAD_SUSPENDED bit will be set */ enum { HPI_THREAD_RUNNABLE = 1, HPI_THREAD_MONITOR_WAIT, HPI_THREAD_CONDVAR_WAIT }; #define HPI_MINIMUM_PRIORITY 1 #define HPI_MAXIMUM_PRIORITY 10 #define HPI_NORMAL_PRIORITY 5 #define HPI_THREAD_SUSPENDED 0x8000 #define HPI_THREAD_INTERRUPTED 0x4000 typedef struct { sys_thread_t *owner; int entry_count; sys_thread_t **monitor_waiters; sys_thread_t **condvar_waiters; int sz_monitor_waiters; int sz_condvar_waiters; int n_monitor_waiters; int n_condvar_waiters; } sys_mon_info; typedef struct { int (*ThreadBootstrap)(sys_thread_t **tidP, sys_mon_t **qlockP, int nReservedBytes); int (*ThreadCreate)(sys_thread_t **tidP, long stk_size, void (*func)(void *), void *arg); sys_thread_t * (*ThreadSelf)(void); void (*ThreadYield)(void); int (*ThreadSuspend)(sys_thread_t *tid); int (*ThreadResume)(sys_thread_t *tid); int (*ThreadSetPriority)(sys_thread_t *tid, int prio); int (*ThreadGetPriority)(sys_thread_t *tid, int *prio); void * (*ThreadStackPointer)(sys_thread_t *tid); void * (*ThreadStackTop)(sys_thread_t *tid); long * (*ThreadRegs)(sys_thread_t *tid, int *regs); int (*ThreadSingle)(void); void (*ThreadMulti)(void); int (*ThreadEnumerateOver)(int (*func)(sys_thread_t *, void *), void *arg); int (*ThreadCheckStack)(void); void (*ThreadPostException)(sys_thread_t *tid, void *arg); void (*ThreadInterrupt)(sys_thread_t *tid); int (*ThreadIsInterrupted)(sys_thread_t *tid, int clear); int (*ThreadAlloc)(sys_thread_t **tidP); int (*ThreadFree)(void); jlong (*ThreadCPUTime)(void); int (*ThreadGetStatus)(sys_thread_t *tid, sys_mon_t **monitor); void * (*ThreadInterruptEvent)(void); void * (*ThreadNativeID)(sys_thread_t *tid); /* These three functions are used by the CPU time profiler. * sysThreadIsRunning determines whether the thread is running (not just * runnable). It is only safe to call this function after calling * sysThreadProfSuspend. */ bool_t (*ThreadIsRunning)(sys_thread_t *tid); void (*ThreadProfSuspend)(sys_thread_t *tid); void (*ThreadProfResume)(sys_thread_t *tid); int (*AdjustTimeSlice)(int ms); size_t (*MonitorSizeof)(void); int (*MonitorInit)(sys_mon_t *mid); int (*MonitorDestroy)(sys_mon_t *mid); int (*MonitorEnter)(sys_thread_t *self, sys_mon_t *mid); bool_t (*MonitorEntered)(sys_thread_t *self, sys_mon_t *mid); int (*MonitorExit)(sys_thread_t *self, sys_mon_t *mid); int (*MonitorNotify)(sys_thread_t *self, sys_mon_t *mid); int (*MonitorNotifyAll)(sys_thread_t *self, sys_mon_t *mid); int (*MonitorWait)(sys_thread_t *self, sys_mon_t *mid, jlong ms); bool_t (*MonitorInUse)(sys_mon_t *mid); sys_thread_t * (*MonitorOwner)(sys_mon_t *mid); int (*MonitorGetInfo)(sys_mon_t *mid, sys_mon_info *info); } HPI_ThreadInterface; /* * files */ #define HPI_FILETYPE_REGULAR (0) #define HPI_FILETYPE_DIRECTORY (1) #define HPI_FILETYPE_OTHER (2) typedef struct { char * (*NativePath)(char *path); int (*FileType)(const char *path); int (*Open)(const char *name, int openMode, int filePerm); int (*Close)(int fd); jlong (*Seek)(int fd, jlong offset, int whence); int (*SetLength)(int fd, jlong length); int (*Sync)(int fd); int (*Available)(int fd, jlong *bytes); size_t (*Read)(int fd, void *buf, unsigned int nBytes); size_t (*Write)(int fd, const void *buf, unsigned int nBytes); int (*FileSizeFD)(int fd, jlong *size); } HPI_FileInterface; /* * sockets */ struct sockaddr; struct hostent; typedef struct { int (*Close)(int fd); long (*Available)(int fd, jint *pbytes); int (*Connect)(int fd, struct sockaddr *him, int len); int (*Accept)(int fd, struct sockaddr *him, int *len); int (*SendTo)(int fd, char *buf, int len, int flags, struct sockaddr *to, int tolen); int (*RecvFrom)(int fd, char *buf, int nbytes, int flags, struct sockaddr *from, int *fromlen); int (*Listen)(int fd, long count); int (*Recv)(int fd, char *buf, int nBytes, int flags); int (*Send)(int fd, char *buf, int nBytes, int flags); int (*Timeout)(int fd, long timeout); struct hostent * (*GetHostByName)(char *hostname); int (*Socket)(int domain, int type, int protocol); int (*SocketShutdown)(int fd, int howto); int (*Bind)(int fd, struct sockaddr *him, int len); int (*GetSocketName)(int fd, struct sockaddr *him, int *len); int (*GetHostName)(char *hostname, int namelen); struct hostent * (*GetHostByAddr)(const char *hostname, int len, int type); int (*SocketGetOption)(int fd, int level, int optname, char *optval, int *optlen); int (*SocketSetOption)(int fd, int level, int optname, const char *optval, int optlen); struct protoent * (*GetProtoByName)(char* name); } HPI_SocketInterface; /* * callbacks. */ typedef struct vm_calls { int (*jio_fprintf)(FILE *fp, const char *fmt, ...); void (*panic)(const char *fmt, ...); void (*monitorRegister)(sys_mon_t *mid, char *info_str); void (*monitorContendedEnter)(sys_thread_t *self, sys_mon_t *mid); void (*monitorContendedEntered)(sys_thread_t *self, sys_mon_t *mid); void (*monitorContendedExit)(sys_thread_t *self, sys_mon_t *mid); } vm_calls_t; #ifdef __cplusplus } #endif #endif /* !_JAVASOFT_HPI_H_ */