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engine-ip22-irix-5.2.h
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MySQL

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Visual C++

engine-ip22-irix-5.2.h：Code Content
  1. /* ==== machdep.h ============================================================
  2.  * Copyright (c) 1994 Chris Provenzano, proven@athena.mit.edu
  3.  *
  4.  * $Id$
  5.  *
  6.  */
  8. #include <unistd.h>
  9. #include <setjmp.h>
  10. #include <sys/time.h>
  11. #include <sys/cdefs.h>
  13. /*
  14.  * The first machine dependent functions are the SEMAPHORES
  15.  * needing the test and set instruction.
  16.  */
  17. #define SEMAPHORE_CLEAR 0
  18. #define SEMAPHORE_SET   0xff
  20. /*
  21.  * More machine dependent macros
  22.  */
  23. #ifdef PTHREAD_KERNEL
  25. #define machdep_save_float_state(x)
  26. #define machdep_restore_float_state()
  28. #endif
  30. /*
  31.  * New types
  32.  */
  33. typedef char    semaphore;
  35. /*
  36.  * sigset_t macros
  37.  */
  38. #define SIGMAX 32
  39. #define SIG_ANY(sig)                        
  40. ({                                          
  41.     sigset_t *sig_addr = (sigset_t *)&sig;  
  42.     int ret = 0;                            
  43.     int i;                                  
  44.                                             
  45.     for (i = 1; i <= SIGMAX; i++) {         
  46.         if (sigismember(sig_addr, i)) {     
  47.             ret = 1;                        
  48.             break;                          
  49.         }                                   
  50.     }                                       
  51.     ret;                                    
  52. })
  54. /*
  55.  * New Strutures
  56.  */
  57. struct machdep_pthread {
  58.     void         *(*start_routine)(void *);
  59.     void         *start_argument;
  60.     void         *machdep_stack;
  61. struct itimerval machdep_timer;
  62.     jmp_buf      machdep_state;
  63. };
  65. /*
  66.  * Static machdep_pthread initialization values.
  67.  * For initial thread only.
  68.  */
  69. #define MACHDEP_PTHREAD_INIT    
  70. { NULL, NULL, NULL, { { 0, 0 }, { 0, 100000 } }, 0 }
  72. /*
  73.  * Minimum stack size
  74.  */
  75. #define PTHREAD_STACK_MIN 1024
  77. /*
  78.  * Some fd flag defines that are necessary to distinguish between posix
  79.  * behavior and bsd4.3 behavior.
  80.  */
  81. #define __FD_NONBLOCK  O_NONBLOCK
  83. /*
  84.  * New functions
  85.  */
  87. __BEGIN_DECLS
  89. #if defined(PTHREAD_KERNEL)
  91. #define __machdep_stack_get(x)      (x)->machdep_stack
  92. #define __machdep_stack_set(x, y)   (x)->machdep_stack = y
  93. #define __machdep_stack_repl(x, y)                          
  94. {                                                           
  95.     if (stack = __machdep_stack_get(x)) {                   
  96.         __machdep_stack_free(stack);                        
  97.     }                                                       
  98.     __machdep_stack_set(x, y);                              
  99. }
  101. void *  __machdep_stack_alloc       __P_((size_t));
  102. void    __machdep_stack_free        __P_((void *));
  104. int machdep_save_state      __P_((void));
  106. #endif
  108. __END_DECLS