_os2.h

gaca源码

#define _MD_SETSOCKOPT                (_PR_MD_SETSOCKOPT)

#define _MD_FSYNC                     _PR_MD_FSYNC
#define _MD_SET_FD_INHERITABLE        (_PR_MD_SET_FD_INHERITABLE)

#ifdef _PR_HAVE_ATOMIC_OPS
#define _MD_INIT_ATOMIC()
#define _MD_ATOMIC_INCREMENT          _PR_MD_ATOMIC_INCREMENT
#define _MD_ATOMIC_ADD                _PR_MD_ATOMIC_ADD
#define _MD_ATOMIC_DECREMENT          _PR_MD_ATOMIC_DECREMENT
#define _MD_ATOMIC_SET                _PR_MD_ATOMIC_SET
#endif

#define _MD_INIT_IO                   (_PR_MD_INIT_IO)
#define _MD_PR_POLL                   (_PR_MD_PR_POLL)

#define _MD_SOCKET                    (_PR_MD_SOCKET)
extern PRInt32 _MD_SocketAvailable(PRFileDesc *fd);
#define _MD_SOCKETAVAILABLE           _MD_SocketAvailable
#define _MD_PIPEAVAILABLE             _MD_SocketAvailable
#define _MD_CONNECT                   (_PR_MD_CONNECT)
extern PRInt32 _MD_Accept(PRFileDesc *fd, PRNetAddr *raddr, PRUint32 *rlen,
        PRIntervalTime timeout);
#define _MD_ACCEPT                    _MD_Accept
#define _MD_BIND                      (_PR_MD_BIND)
#define _MD_RECV                      (_PR_MD_RECV)
#define _MD_SEND                      (_PR_MD_SEND)

/* --- Scheduler stuff --- */
/* #define _MD_PAUSE_CPU                 _PR_MD_PAUSE_CPU */
#define _MD_PAUSE_CPU

/* --- DIR stuff --- */
#define PR_DIRECTORY_SEPARATOR        '\\'
#define PR_DIRECTORY_SEPARATOR_STR    "\\"
#define PR_PATH_SEPARATOR		';'
#define PR_PATH_SEPARATOR_STR		";"
#define _MD_ERRNO()                   errno
#define _MD_OPEN_DIR                  (_PR_MD_OPEN_DIR)
#define _MD_CLOSE_DIR                 (_PR_MD_CLOSE_DIR)
#define _MD_READ_DIR                  (_PR_MD_READ_DIR)

/* --- Segment stuff --- */
#define _MD_INIT_SEGS()
#define _MD_ALLOC_SEGMENT(seg, size, vaddr)   0
#define _MD_FREE_SEGMENT(seg)

/* --- Environment Stuff --- */
#define _MD_GET_ENV                 (_PR_MD_GET_ENV)
#define _MD_PUT_ENV                 (_PR_MD_PUT_ENV)

/* --- Threading Stuff --- */
#define _MD_DEFAULT_STACK_SIZE      65536L
#define _MD_INIT_THREAD             (_PR_MD_INIT_THREAD)
#define _MD_INIT_ATTACHED_THREAD    (_PR_MD_INIT_THREAD)
#define _MD_CREATE_THREAD           (_PR_MD_CREATE_THREAD)
#define _MD_YIELD                   (_PR_MD_YIELD)
#define _MD_SET_PRIORITY            (_PR_MD_SET_PRIORITY)
#define _MD_CLEAN_THREAD            (_PR_MD_CLEAN_THREAD)
#define _MD_SETTHREADAFFINITYMASK   (_PR_MD_SETTHREADAFFINITYMASK)
#define _MD_GETTHREADAFFINITYMASK   (_PR_MD_GETTHREADAFFINITYMASK)
#define _MD_EXIT_THREAD             (_PR_MD_EXIT_THREAD)
#define _MD_SUSPEND_THREAD          (_PR_MD_SUSPEND_THREAD)
#define _MD_RESUME_THREAD           (_PR_MD_RESUME_THREAD)
#define _MD_SUSPEND_CPU             (_PR_MD_SUSPEND_CPU)
#define _MD_RESUME_CPU              (_PR_MD_RESUME_CPU)
#define _MD_WAKEUP_CPUS             (_PR_MD_WAKEUP_CPUS)
#define _MD_BEGIN_SUSPEND_ALL()
#define _MD_BEGIN_RESUME_ALL()
#define _MD_END_SUSPEND_ALL()
#define _MD_END_RESUME_ALL()

/* --- Lock stuff --- */
#define _PR_LOCK                      _MD_LOCK
#define _PR_UNLOCK					  _MD_UNLOCK

#ifdef USE_RAMSEM
#define _MD_NEW_LOCK                  (_PR_MD_NEW_LOCK)
#define _MD_FREE_LOCK(lock)           (DosCloseEventSem(((PRAMSEM)(&((lock)->mutex)))->hevSem))
#define _MD_LOCK(lock)                (SemRequest486(&((lock)->mutex), -1))
#define _MD_TEST_AND_LOCK(lock)       (SemRequest486(&((lock)->mutex), -1),0)
#define _MD_UNLOCK(lock)              \
    PR_BEGIN_MACRO \
    if (0 != (lock)->notified.length) { \
        md_UnlockAndPostNotifies((lock), NULL, NULL); \
    } else { \
        SemReleasex86( &(lock)->mutex, 0 ); \
    } \
    PR_END_MACRO
#else
#define _MD_NEW_LOCK                  (_PR_MD_NEW_LOCK)
#define _MD_FREE_LOCK(lock)           (DosCloseMutexSem((lock)->mutex))
#define _MD_LOCK(lock)                (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT))
#define _MD_TEST_AND_LOCK(lock)       (DosRequestMutexSem((lock)->mutex, SEM_INDEFINITE_WAIT),0)
#define _MD_UNLOCK(lock)              \
    PR_BEGIN_MACRO \
    if (0 != (lock)->notified.length) { \
        md_UnlockAndPostNotifies((lock), NULL, NULL); \
    } else { \
        DosReleaseMutexSem((lock)->mutex); \
    } \
    PR_END_MACRO
#endif

/* --- lock and cv waiting --- */
#define _MD_WAIT                      (_PR_MD_WAIT)
#define _MD_WAKEUP_WAITER             (_PR_MD_WAKEUP_WAITER)

/* --- CVar ------------------- */
#define _MD_WAIT_CV					  (_PR_MD_WAIT_CV)
#define _MD_NEW_CV					  (_PR_MD_NEW_CV)
#define _MD_FREE_CV					  (_PR_MD_FREE_CV)
#define _MD_NOTIFY_CV				  (_PR_MD_NOTIFY_CV	)
#define _MD_NOTIFYALL_CV			  (_PR_MD_NOTIFYALL_CV)

   /* XXXMB- the IOQ stuff is certainly not working correctly yet. */
/* extern  struct _MDLock              _pr_ioq_lock; */
#define _MD_IOQ_LOCK()                
#define _MD_IOQ_UNLOCK()              


/* --- Initialization stuff --- */
#define _MD_START_INTERRUPTS()
#define _MD_STOP_INTERRUPTS()
#define _MD_DISABLE_CLOCK_INTERRUPTS()
#define _MD_ENABLE_CLOCK_INTERRUPTS()
#define _MD_BLOCK_CLOCK_INTERRUPTS()
#define _MD_UNBLOCK_CLOCK_INTERRUPTS()
#define _MD_EARLY_INIT                (_PR_MD_EARLY_INIT)
#define _MD_FINAL_INIT()
#define _MD_INIT_CPUS()
#define _MD_INIT_RUNNING_CPU(cpu)

struct PRProcess;
struct PRProcessAttr;

#define _MD_CREATE_PROCESS _PR_CreateOS2Process
extern struct PRProcess * _PR_CreateOS2Process(
    const char *path,
    char *const *argv,
    char *const *envp,
    const struct PRProcessAttr *attr
);

#define _MD_DETACH_PROCESS _PR_DetachOS2Process
extern PRStatus _PR_DetachOS2Process(struct PRProcess *process);

/* --- Wait for a child process to terminate --- */
#define _MD_WAIT_PROCESS _PR_WaitOS2Process
extern PRStatus _PR_WaitOS2Process(struct PRProcess *process, 
    PRInt32 *exitCode);

#define _MD_KILL_PROCESS _PR_KillOS2Process
extern PRStatus _PR_KillOS2Process(struct PRProcess *process);

#define _MD_CLEANUP_BEFORE_EXIT()
#define _MD_EXIT                          (_PR_MD_EXIT)
#define _MD_INIT_CONTEXT
#define _MD_SWITCH_CONTEXT
#define _MD_RESTORE_CONTEXT

/* --- Intervals --- */
#define _MD_INTERVAL_INIT                 (_PR_MD_INTERVAL_INIT)
#define _MD_GET_INTERVAL                  (_PR_MD_GET_INTERVAL)
#define _MD_INTERVAL_PER_SEC              (_PR_MD_INTERVAL_PER_SEC)
#define _MD_INTERVAL_PER_MILLISEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000)
#define _MD_INTERVAL_PER_MICROSEC()       (_PR_MD_INTERVAL_PER_SEC() / 1000000)

/* --- Native-Thread Specific Definitions ------------------------------- */

typedef struct __NSPR_TLS
{
    struct PRThread  *_pr_thread_last_run;
    struct PRThread  *_pr_currentThread;
    struct _PRCPU    *_pr_currentCPU;
} _NSPR_TLS;

extern _NSPR_TLS*  pThreadLocalStorage;
NSPR_API(void) _PR_MD_ENSURE_TLS(void);

#define _MD_GET_ATTACHED_THREAD() pThreadLocalStorage->_pr_currentThread
extern struct PRThread * _MD_CURRENT_THREAD(void);
#define _MD_SET_CURRENT_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentThread = (_thread)

#define _MD_LAST_THREAD() pThreadLocalStorage->_pr_thread_last_run
#define _MD_SET_LAST_THREAD(_thread) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_thread_last_run = (_thread)

#define _MD_CURRENT_CPU() pThreadLocalStorage->_pr_currentCPU
#define _MD_SET_CURRENT_CPU(_cpu) _PR_MD_ENSURE_TLS(); pThreadLocalStorage->_pr_currentCPU = (_cpu)

/* lth. #define _MD_SET_INTSOFF(_val) (_pr_ints_off = (_val)) */
/* lth. #define _MD_GET_INTSOFF() _pr_ints_off */
/* lth. #define _MD_INCREMENT_INTSOFF() (_pr_ints_off++) */
/* lth. #define _MD_DECREMENT_INTSOFF() (_pr_ints_off--) */

/* --- Scheduler stuff --- */
#define LOCK_SCHEDULER()                 0
#define UNLOCK_SCHEDULER()               0
#define _PR_LockSched()                	 0
#define _PR_UnlockSched()                0

/* --- Initialization stuff --- */
#define _MD_INIT_LOCKS()

/* --- Stack stuff --- */
#define _MD_INIT_STACK(stack, redzone)
#define _MD_CLEAR_STACK(stack)

/* --- Memory-mapped files stuff --- not implemented on OS/2 */

struct _MDFileMap {
    PRInt8 unused;
};

extern PRStatus _MD_CreateFileMap(struct PRFileMap *fmap, PRInt64 size);
#define _MD_CREATE_FILE_MAP _MD_CreateFileMap

extern PRInt32 _MD_GetMemMapAlignment(void);
#define _MD_GET_MEM_MAP_ALIGNMENT _MD_GetMemMapAlignment

extern void * _MD_MemMap(struct PRFileMap *fmap, PRInt64 offset,
        PRUint32 len);
#define _MD_MEM_MAP _MD_MemMap

extern PRStatus _MD_MemUnmap(void *addr, PRUint32 size);
#define _MD_MEM_UNMAP _MD_MemUnmap

extern PRStatus _MD_CloseFileMap(struct PRFileMap *fmap);
#define _MD_CLOSE_FILE_MAP _MD_CloseFileMap

/* Some stuff for setting up thread contexts */
typedef ULONG DWORD, *PDWORD;

/* The following definitions and two structures are new in OS/2 Warp 4.0.
 */
#ifndef CONTEXT_CONTROL
#define CONTEXT_CONTROL        0x00000001
#define CONTEXT_INTEGER        0x00000002
#define CONTEXT_SEGMENTS       0x00000004
#define CONTEXT_FLOATING_POINT 0x00000008
#define CONTEXT_FULL           0x0000000F

#pragma pack(2)
typedef struct _FPREG {
    ULONG      losig;    /*  Low 32-bits of the significand. */
    ULONG      hisig;    /*  High 32-bits of the significand. */
    USHORT     signexp;  /*  Sign and exponent. */
} FPREG;
typedef struct _CONTEXTRECORD {
    ULONG     ContextFlags;
    ULONG     ctx_env[7];
    FPREG     ctx_stack[8];
    ULONG     ctx_SegGs;     /*  GS register. */
    ULONG     ctx_SegFs;     /*  FS register. */
    ULONG     ctx_SegEs;     /*  ES register. */
    ULONG     ctx_SegDs;     /*  DS register. */
    ULONG     ctx_RegEdi;    /*  EDI register. */
    ULONG     ctx_RegEsi;    /*  ESI register. */
    ULONG     ctx_RegEax;    /*  EAX register. */
    ULONG     ctx_RegEbx;    /*  EBX register. */
    ULONG     ctx_RegEcx;    /*  ECX register. */
    ULONG     ctx_RegEdx;    /*  EDX register. */
    ULONG     ctx_RegEbp;    /*  EBP register. */
    ULONG     ctx_RegEip;    /*  EIP register. */
    ULONG     ctx_SegCs;     /*  CS register. */
    ULONG     ctx_EFlags;    /*  EFLAGS register. */
    ULONG     ctx_RegEsp;    /*  ESP register. */
    ULONG     ctx_SegSs;     /*  SS register. */
} CONTEXTRECORD, *PCONTEXTRECORD;
#pragma pack()
#endif

extern APIRET (* APIENTRY QueryThreadContext)(TID, ULONG, PCONTEXTRECORD);
unsigned long _System _DLL_InitTerm( unsigned long mod_handle, unsigned long flag);

/*
#define _pr_tid            (((PTIB2)_getTIBvalue(offsetof(TIB, tib_ptib2)))->tib2_ultid)
#define _pr_current_Thread (_system_tls[_pr_tid-1].__pr_current_thread)
*/

/* Some simple mappings of Windows API's to OS/2 API's to make our lives a
 * little bit easier.  Only add one here if it is a DIRECT mapping.  We are
 * not emulating anything.  Just mapping.
 */
#define FreeLibrary(x) DosFreeModule((HMODULE)x)
#define OutputDebugString(x)
                               
extern int _MD_os2_get_nonblocking_connect_error(int osfd);

#endif /* nspr_os2_defs_h___ */