engine-hppa-hpux-10.20.h
上传用户:tsgydb
上传日期:2007-04-14
资源大小:10674k
文件大小:3k
源码类别:
MySQL数据库
开发平台:
Visual C++
- /* ==== machdep.h ============================================================
- * Copyright (c) 1993 Chris Provenzano, proven@athena.mit.edu
- *
- */
- #include <unistd.h>
- #include <setjmp.h>
- #include <sys/time.h>
- /*
- * Stuff for compiling
- */
- #if defined(__GNUC__)
- #if defined(__cplusplus)
- #define __BEGIN_DECLS extern "C" {
- #define __END_DECLS };
- #else
- #define __BEGIN_DECLS
- #define __END_DECLS
- #if !defined(__STDC__)
- #define const __const
- #define inline __inline
- #define signed __signed
- #define volatile __volatile
- #endif
- #endif
- #else /* !__GNUC__ */
- #define __BEGIN_DECLS
- #define __END_DECLS
- #if !defined(__STDC__)
- #define const
- #endif
- #define inline
- #define signed
- #define volatile
- #endif
- /*
- * The first machine dependent functions are the SEMAPHORES
- * needing the test and set instruction.
- *
- * Note: The set and clear defines are backwards.
- */
- #define SEMAPHORE_CLEAR { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }
- #define SEMAPHORE_SET 0
- #define SEMAPHORE_TEST_AND_SET(lock)
- ({
- long real_addr;
- long temp;
- real_addr = ((long)((*lock) + 15) & ~15);
- __asm__ volatile("ldcwx %%r0(%2),%0"
- :"=r" (temp)
- :"0" (temp),"r" (real_addr));
- temp ? 0 : 1;
- })
- #define SEMAPHORE_RESET(lock)
- ({
- char *real_addr;
- real_addr = (char*)((long)((*lock) + 15) & ~15);
- *real_addr = 0xff;
- })
- /*
- * New types
- * The semaphore is really 16 bytes but must be aligened on a 16 byte
- * boundary. By specifing 31 bytes the macros can frob it correctly.
- */
- typedef char semaphore[31];
- /*
- * Macros for sigset_t
- */
- #define SIGMAX 30
- /* see hpux-9.03/__signal.h for SIG_ANY */
- /*
- * New Strutures
- */
- struct machdep_pthread {
- void *(*start_routine)(void *);
- void *start_argument;
- void *machdep_stack;
- struct itimerval machdep_timer;
- jmp_buf machdep_state;
- /* long machdep_state[_JBLEN]; */
- };
- /*
- * Static machdep_pthread initialization values.
- * For initial thread only.
- */
- #define MACHDEP_PTHREAD_INIT
- { NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 }
- /*
- * Minimum stack size
- */
- #define PTHREAD_STACK_MIN 4096
- /*
- * Some fd flag defines that are necessary to distinguish between posix
- * behavior and bsd4.3 behavior.
- */
- #define __FD_NONBLOCK O_NONBLOCK
- /*
- * page size
- */
- #define getpagesize() 4096
- /*
- * New functions
- */
- __BEGIN_DECLS
- #if defined(PTHREAD_KERNEL)
- #define __machdep_stack_get(x) (x)->machdep_stack
- #define __machdep_stack_set(x, y) (x)->machdep_stack = y
- #define __machdep_stack_repl(x, y)
- {
- if (stack = __machdep_stack_get(x)) {
- __machdep_stack_free(stack);
- }
- __machdep_stack_set(x, y);
- }
- void * __machdep_stack_alloc __P_((size_t));
- void __machdep_stack_free __P_((void *));
- int machdep_save_state __P_((void));
- #endif
- __END_DECLS