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- /*
- * @(#)hpi.h 1.17 00/02/02
- *
- * Copyright 1994-2000 Sun Microsystems, Inc. All Rights Reserved.
- *
- * This software is the proprietary information of Sun Microsystems, Inc.
- * Use is subject to license terms.
- *
- */
-
- /*
- * Host Porting Interface. This defines the "porting layer" for
- * POSIX.1 compliant operating systems.
- */
-
- #ifndef _JAVASOFT_HPI_H_
- #define _JAVASOFT_HPI_H_
-
- #include <stdio.h>
-
- #include "jni.h"
- #include "bool.h"
- #include "hpi_md.h"
- #include "dll.h"
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /*
- * 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, 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, long *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_ */
-