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annotate src/event/ngx_event.h @ 0:4eff17414a43

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nginx-0.0.1-2002-08-06-20:39:45 import The first code that uses "ngx_" prefix, the previous one used "gx_" prefix. At that point the code is not yet usable. The first draft ideas are dated back to 23.10.2001.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 06 Aug 2002 16:39:45 +0000
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children d220029ac7f3
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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1 #ifndef _NGX_EVENT_H_INCLUDED_
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2 #define _NGX_EVENT_H_INCLUDED_
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3
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4
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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5 #include <ngx_config.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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6 #include <ngx_types.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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7 #include <ngx_log.h>
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8
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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9 typedef struct ngx_event_s ngx_event_t;
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11 struct ngx_event_s {
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12 void *data;
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13
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14 int (*event_handler)(ngx_event_t *ev);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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15 int (*close_handler)(ngx_event_t *ev);
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16 void *context;
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17 char *action;
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18
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19 ngx_event_t *prev; /* queue in select(), poll() */
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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20 ngx_event_t *next;
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21
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22 int (*timer_handler)(ngx_event_t *ev);
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23 ngx_event_t *timer_prev;
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24 ngx_event_t *timer_next;
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25
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26 u_int timer_delta;
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27 u_int timer;
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28
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29 ngx_log_t *log;
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30
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31 int available; /* kqueue only: */
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32 /* accept: number of sockets that wait */
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33 /* to be accepted */
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34 /* read: bytes to read */
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35 /* write: available space in buffer */
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36 /* otherwise: */
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37 /* accept: 1 if accept many, 0 otherwise */
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38
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39 /* flags - int are probably faster on write then bits ??? */
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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40 unsigned listening:1;
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41 unsigned write:1;
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42
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43 unsigned ready:1;
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44 unsigned timedout:1;
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45 unsigned process:1;
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46 unsigned read_discarded:1;
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47
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48 unsigned unexpected_eof:1;
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49
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50 #if (HAVE_DEFERRED_ACCEPT)
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51 unsigned accept_filter:1;
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52 #endif
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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53 #if (HAVE_KQUEUE)
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54 unsigned eof:1;
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55 int errno;
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56 #endif
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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57 };
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58
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59 typedef enum {
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60 NGX_SELECT_EVENT = 0,
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61 #if (HAVE_POLL)
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62 NGX_POLL_EVENT,
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63 #endif
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64 #if (HAVE_KQUEUE)
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65 NGX_KQUEUE_EVENT,
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66 #endif
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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67 } ngx_event_type_e ;
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68
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69 typedef struct {
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70 int (*add)(ngx_event_t *ev, int event, u_int flags);
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71 int (*del)(ngx_event_t *ev, int event);
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72 int (*process)(ngx_log_t *log);
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73 /*
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74 int (*read)(ngx_event_t *ev, char *buf, size_t size);
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75 int (*write)(ngx_event_t *ev, char *buf, size_t size);
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76 */
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77 } ngx_event_actions_t;
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78
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79
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80 #if (HAVE_KQUEUE)
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81
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82 #define NGX_READ_EVENT EVFILT_READ
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83 #define NGX_WRITE_EVENT EVFILT_WRITE
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84 #define NGX_TIMER_EVENT (-EVFILT_SYSCOUNT - 1)
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85
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86 #define NGX_ONESHOT_EVENT EV_ONESHOT
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87 #define NGX_CLEAR_EVENT EV_CLEAR
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88
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89 #else
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90
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91 #define NGX_READ_EVENT 0
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92 #define NGX_WRITE_EVENT 1
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93 #define NGX_TIMER_EVENT 2
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94
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95 #define NGX_ONESHOT_EVENT 1
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96 #define NGX_CLEAR_EVENT 2
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97
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98 #endif
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99
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100
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101 #if (USE_KQUEUE)
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102 #define ngx_init_events ngx_kqueue_init
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103 #define ngx_process_events ngx_kqueue_process_events
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104 #define ngx_add_event ngx_kqueue_add_event
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105 #define ngx_del_event ngx_kqueue_del_event
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106 #else
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107 #define ngx_init_events (ngx_event_init[ngx_event_type])
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108 #define ngx_process_events ngx_event_actions.process
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109 #define ngx_add_event ngx_event_actions.add
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110 #define ngx_del_event ngx_event_actions.del
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111 #endif
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112
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113
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114 extern ngx_event_t *ngx_read_events;
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115 extern ngx_event_t *ngx_write_events;
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116 extern ngx_connection_t *ngx_connections;
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117
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118 #if !(USE_KQUEUE)
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119 extern ngx_event_actions_t ngx_event_actions;
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120 extern ngx_event_type_e ngx_event_type;
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121 #endif
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122
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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123
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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124 void ngx_worker(ngx_listen_t *sock, int n, ngx_pool_t *pool, ngx_log_t *log);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
parents:
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125
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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126
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
Igor Sysoev <igor@sysoev.ru>
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127 #endif /* _NGX_EVENT_H_INCLUDED_ */