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annotate nodejs/X_supp_njs.c @ 1041:eb3d2e3381cb refine_backend_if

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Fix typo for mb_runtime_free_keep_win()
author Thinker K.F. Li <thinker@codemud.net>
date Tue, 23 Nov 2010 11:42:01 +0800
parents 22e5cf38d8e8
children 18256f404193
rev   line source
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1 // -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
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2 // vim: sw=4:ts=8:sts=4
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3 /*! \brief Implement X11 backend for nodejs plugin.
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4 *
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5 * Since nodejs use libev to handle event loops, part of X11 backend
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6 * code can not be used directly. The part of code should be rewrote.
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7 * The part is about
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8 */
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9 #include <stdio.h>
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10 #include <X11/Xlib.h>
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11 #include <X11/Xutil.h>
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12 #include <ev.h>
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13 #include "mb_X_supp.h"
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14 #include "mb_tools.h"
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15 #include "X_supp_njs.h"
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16
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17 #ifndef ASSERT
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18 #define ASSERT(x)
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19 #endif
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20
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21 #define OK 0
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22 #define ERR -1
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23
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24
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25 /*! \defgroup njs_timer_man Timer manager for nodejs.
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26 * @{
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27 */
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28 struct _njs_timer_tiemout {
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29 ev_timer tmwatcher;
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30 mb_timer_cb_t cb;
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31 mb_timeval_t *timeout;
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32 void *data;
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33 };
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34
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35 static int njs_timer_man_timeout(struct _mb_timer_man *tm_man,
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36 mb_timeval_t *tm_out,
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37 mb_timer_cb_t cb, void *data);
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38 static void njs_timer_man_remove(struct _mb_timer_man *tm_man, int tm_hdl);
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39 static mb_timer_man_t *njs_timer_man_new(void);
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40 static void njs_timer_man_free(mb_timer_man_t *timer_man);
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41
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42 static mb_timer_man_t *njs_timer_man = {
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43 njs_timer_man_timeout,
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44 njs_timer_man_remove
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45 };
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46
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47 static mb_timer_factory_t njs_timer_factory = {
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48 njs_timer_man_new,
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49 njs_timer_man_free
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50 };
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51
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52 static void
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53 njs_timer_man_cb(EV_P_ ev_timer *tmwatcher, int revent) {
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54 struct _njs_timer_timeout *timer_timeout =
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55 MEM2OBJ(tmwatcher, struct _njs_timer_timeout, tmwatcher);
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56 mb_timeval_t now;
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57
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58 get_now(&now);
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59 timer_timeout->cb((int)timer_timeout, timer_timeout->timeout, &now,
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60 timer_timeout->data);
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61 }
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62
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63 static int
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64 njs_timer_man_timeout(struct _mb_timer_man *tm_man,
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65 mb_timeval_t *timeout,
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66 mb_timer_cb_t cb, void *data) {
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67 struct _njs_timer_timeout *timer_timeout;
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68 mb_timeval_t now, timeout_diff;
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69 ev_tstamp timeout_stamp;
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70
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71 timer_timeout = O_ALLOC(struct _njs_timer_timeout);
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72 if(timer_timeout == NULL)
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73 return ERR;
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74
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75 timer_timeout->cb = cb;
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76 timer_timeout->timeout = timeout;
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77
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78 get_now(&now);
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79
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80 memcpy(&timeout_diff, timeout, sizeof(mb_timeval_t));
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81 MB_TIMEVAL_DIFF(&timeout_diff, &now);
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82 timeout_stamp = (ev_tstamp)MB_TIMEVAL_SEC(&timeout_diff) +
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83 (ev_tstamp)MB_TIMEVAL_USEC(&timeout_diff) / 1000000;
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84 ev_timer_init(&timer_timeout->tmwatcher, njs_timer_man_cb,
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85 timeout_stamp, 0);
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86 ev_timer_start(&timer_timeout->tmwatcher);
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87
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88 return (int)timer_timeout;
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89 }
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90
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91 static void
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92 njs_timer_man_remove(struct _mb_timer_man *tm_man, int tm_hdl) {
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93 struct _njs_timer_timeout *timer_timeout =
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94 MEM2OBJ(tmwatcher, struct _njs_timer_timeout, tmwatcher);
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95
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96 ev_timer_stop(&timer_timeout->tmwatcher);
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97 free(timer_timeout);
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98 }
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99
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100 static mb_timer_man_t *
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101 njs_timer_man_new(void) {
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102 return &njs_timr_man;
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103 }
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104
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105 static void
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106 njs_timer_man_free(mb_timer_man_t *timer_man) {
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107 }
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108
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109 void
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110 X_njs_MB_reg_timer_man(void) {
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111 mb_reg_timer_factory(&njs_timer_factory);
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112 }
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113
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114 /* @} */
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115
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116 static void timer_cb(EV_P_ ev_timer *tmwatcher, int revent);
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117
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118 /*! \brief Register next timeout with libev.
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119 */
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120 static void
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121 set_next_timeout(njs_runtime_t *rt) {
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122 mb_tman_t *tman;
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123 mb_timeval_t now, tmo;
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124 ev_tstamp tout;
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125 int r;
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126
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127 tman = X_MB_tman(rt->xrt);
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128 get_now(&now);
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129 r = mb_tman_next_timeout(tman, &now, &tmo);
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130 if(r == 0) {
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131 MB_TIMEVAL_DIFF(&tmo, &now);
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132 tout = (ev_tstamp)MB_TIMEVAL_SEC(&tmo) +
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133 (ev_tstamp)MB_TIMEVAL_USEC(&tmo) / 1000000;
552
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134 ev_timer_init(&rt->tmwatcher, timer_cb, tout, 0);
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135 ev_timer_start(&rt->tmwatcher);
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diff changeset
136 rt->enable_timer = 1;
546
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137 } else
552
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diff changeset
138 rt->enable_timer = 0;
546
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139 }
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140
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141 static void
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142 x_conn_cb(EV_P_ ev_io *iowatcher, int revent) {
552
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143 njs_runtime_t *rt = MEM2OBJ(iowatcher, njs_runtime_t, iowatcher);
546
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144 redraw_man_t *rdman;
550
127499ab2412 Upgrade ndoejs plugin to level of a new runtime.
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diff changeset
145 extern void _X_MB_handle_x_event_for_nodejs(void *rt);
546
249bcbf07eb0 Reuse and adapt X_supp.c by implmeneting X_supp_njs.c
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146
552
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diff changeset
147 rdman = X_MB_rdman(rt->xrt);
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diff changeset
148 _X_MB_handle_x_event_for_nodejs(rt->xrt);
546
249bcbf07eb0 Reuse and adapt X_supp.c by implmeneting X_supp_njs.c
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149 rdman_redraw_changed(rdman);
822
586e50f82c1f Unify coding style tag for emacs and vim.
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150
552
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diff changeset
151 if(rt->enable_timer == 0) /* no installed timeout */
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diff changeset
152 set_next_timeout(rt);
546
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153 }
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154
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155 static void
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diff changeset
156 timer_cb(EV_P_ ev_timer *tmwatcher, int revent) {
552
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diff changeset
157 njs_runtime_t *rt = MEM2OBJ(tmwatcher, njs_runtime_t, tmwatcher);
546
249bcbf07eb0 Reuse and adapt X_supp.c by implmeneting X_supp_njs.c
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diff changeset
158 mb_tman_t *tman;
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diff changeset
159 redraw_man_t *rdman;
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parents:
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160 mb_timeval_t now;
556
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Thinker K.F. Li <thinker@branda.to>
parents: 554
diff changeset
161 extern int _X_MB_flush_x_conn_for_nodejs(void *rt);
822
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162
552
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diff changeset
163 tman = X_MB_tman(rt->xrt);
546
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164 get_now(&now);
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parents:
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165 mb_tman_handle_timeout(tman, &now);
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166
552
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diff changeset
167 rdman = X_MB_rdman(rt->xrt);
546
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diff changeset
168 rdman_redraw_changed(rdman);
556
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Thinker K.F. Li <thinker@branda.to>
parents: 554
diff changeset
169 _X_MB_flush_x_conn_for_nodejs(rt->xrt);
822
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Shih-Yuan Lee (FourDollars) <fourdollars@gmail.com>
parents: 753
diff changeset
170
552
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diff changeset
171 set_next_timeout(rt);
546
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172 }
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173
1039
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diff changeset
174 /*! \defgroup njs_io_man IO manager for nodejs.
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diff changeset
175 * @{
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diff changeset
176 */
176cba3ad32c IO manager for njs
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177 struct _njs_io_reg {
176cba3ad32c IO manager for njs
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178 ev_io iowatcher;
176cba3ad32c IO manager for njs
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179 int fd;
176cba3ad32c IO manager for njs
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180 mb_IO_cb_t cb;
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181 void *data;
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182 };
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diff changeset
183
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diff changeset
184 static int njs_io_man_reg(struct _mb_IO_man *io_man,
176cba3ad32c IO manager for njs
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diff changeset
185 int fd, MB_IO_TYPE type, mb_IO_cb_t cb, void *data);
176cba3ad32c IO manager for njs
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diff changeset
186 static void njs_io_man_unreg(struct _mb_IO_man *io_man, int io_hdl);
176cba3ad32c IO manager for njs
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187 static mb_IO_man_t *njs_io_man_new(void);
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188 static void njs_io_man_free(mb_IO_man_t *io_man);
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189
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diff changeset
190 static mb_IO_man_t njs_io_man = {
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191 njs_io_man_reg,
176cba3ad32c IO manager for njs
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192 njs_io_man_unreg
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193 };
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diff changeset
194
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195 /*! \brief IO factory to integrate MadButterfly to event loop of nodejs.
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196 */
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197 static mb_IO_factory_t njs_io_factory = {
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198 njs_io_man_new,
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199 njs_io_man_free
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200 };
176cba3ad32c IO manager for njs
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diff changeset
201
176cba3ad32c IO manager for njs
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diff changeset
202 /*! \brief Bridge libev callback to IO manager callback.
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diff changeset
203 */
176cba3ad32c IO manager for njs
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diff changeset
204 static void
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205 njs_io_man_cb(EV_P_ ev_io *iowatcher, int revent) {
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206 struct _njs_io_reg *io_reg =
176cba3ad32c IO manager for njs
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diff changeset
207 MEM2OBJ(iowatcher, struct _njs_io_reg, iowatcher);
176cba3ad32c IO manager for njs
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diff changeset
208 MB_IO_TYPE type;
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diff changeset
209
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diff changeset
210 switch(revent & (EV_READ | EV_WRITE)) {
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diff changeset
211 case EV_READ:
176cba3ad32c IO manager for njs
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212 type = MB_IO_R;
176cba3ad32c IO manager for njs
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diff changeset
213 break;
176cba3ad32c IO manager for njs
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214 case EV_WRITE:
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215 type = MB_IO_W;
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216 break;
176cba3ad32c IO manager for njs
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217 case EV_READ | EV_WRITE:
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218 type = MB_IO_RW;
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219 break;
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220 }
176cba3ad32c IO manager for njs
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diff changeset
221
176cba3ad32c IO manager for njs
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222 io_reg->cb((int)io_reg, io_reg->fd, type, io_reg->data);
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223 }
176cba3ad32c IO manager for njs
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diff changeset
224
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diff changeset
225 static int
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226 njs_io_man_reg(struct _mb_IO_man *io_man,
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diff changeset
227 int fd, MB_IO_TYPE type, mb_IO_cb_t cb, void *data) {
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228 int _type;
176cba3ad32c IO manager for njs
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229 struct _njs_io_reg *io_reg;
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diff changeset
230
176cba3ad32c IO manager for njs
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diff changeset
231 if(type == MB_IO_R)
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232 _type = EV_READ;
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233 else if(type == MB_IO_W)
176cba3ad32c IO manager for njs
Thinker K.F. Li <thinker@codemud.net>
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diff changeset
234 _type == EV_WRITE;
176cba3ad32c IO manager for njs
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235 else if(type == MB_IO_RW)
176cba3ad32c IO manager for njs
Thinker K.F. Li <thinker@codemud.net>
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diff changeset
236 _type == EV_READ | EV_WRITE;
176cba3ad32c IO manager for njs
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237 else
176cba3ad32c IO manager for njs
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diff changeset
238 return ERR;
176cba3ad32c IO manager for njs
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diff changeset
239
176cba3ad32c IO manager for njs
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240 io_reg = O_ALLOC(struct _njs_io_reg);
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241 if(io_reg == NULL)
176cba3ad32c IO manager for njs
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242 return ERR;
176cba3ad32c IO manager for njs
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diff changeset
243
176cba3ad32c IO manager for njs
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244 io_reg->fd = fd;
176cba3ad32c IO manager for njs
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245 io_reg->cb = cb;
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246 io_reg->data = data;
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247
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248 ev_io_init(&io_reg->iowatcher, njs_io_man_cb, fd, _type);
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249 ev_io_start(&io_reg->iowatcher);
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diff changeset
250
176cba3ad32c IO manager for njs
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251 return (int)io_reg;
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252 }
176cba3ad32c IO manager for njs
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253
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254 static void
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255 njs_io_man_unreg(struct _mb_IO_man *io_man, int io_hdl) {
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diff changeset
256 struct _njs_io_reg *io_reg = (struct _njs_io_reg *)io_hdl;
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diff changeset
257
176cba3ad32c IO manager for njs
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258 ev_io_stop(&io_reg->iowatcher);
176cba3ad32c IO manager for njs
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diff changeset
259 free(io_reg);
176cba3ad32c IO manager for njs
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260 }
176cba3ad32c IO manager for njs
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diff changeset
261
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diff changeset
262 static mb_IO_man_t *
176cba3ad32c IO manager for njs
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diff changeset
263 njs_io_man_new(void) {
176cba3ad32c IO manager for njs
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diff changeset
264 return &njs_io_man;
176cba3ad32c IO manager for njs
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diff changeset
265 }
176cba3ad32c IO manager for njs
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diff changeset
266
176cba3ad32c IO manager for njs
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diff changeset
267 static void
176cba3ad32c IO manager for njs
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diff changeset
268 njs_io_man_free(mb_IO_man_t *io_man) {
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269 }
176cba3ad32c IO manager for njs
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diff changeset
270
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diff changeset
271 /*! \brief Register an IO factory with MadButterfly backend.
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272 */
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273 void
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274 X_njs_MB_reg_IO_man(void) {
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275 mb_reg_IO_facotry(&njs_io_factory);
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276 }
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277
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278 /* @} */
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279
546
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280 /*! \brief Handle connection coming data and timeout of timers.
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281 *
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282 * \param rt is a runtime object for X.
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283 */
550
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284 void
556
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285 X_njs_MB_init_handle_connection(njs_runtime_t *rt) {
552
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286 void *xrt = rt->xrt;
546
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287 int fd;
550
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288 extern int _X_MB_get_x_conn_for_nodejs(void *rt);
546
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289
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290 /*
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291 * Setup watcher for X connection.
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292 */
551
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293 fd = _X_MB_get_x_conn_for_nodejs(xrt);
552
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294 ev_io_init(&rt->iowatcher, x_conn_cb, fd, EV_READ);
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295 ev_io_start(&rt->iowatcher);
554
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296 rt->enable_io = 1;
546
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297
552
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298 set_next_timeout(rt);
546
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299 }
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300
551
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301 /*! \brief Free njs_runtime_t.
550
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302 */
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303 void
552
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304 X_njs_MB_free(njs_runtime_t *rt) {
546
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305 /*
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306 * stop IO and timer watcher
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307 */
554
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308 if(rt->enable_io)
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309 ev_io_stop(&rt->iowatcher);
552
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310 if(rt->enable_timer)
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311 ev_timer_stop(&rt->tmwatcher);
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312
554
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313 X_MB_free(rt->xrt);
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314 free(rt);
546
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315 }
550
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316
871
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317 /*! \brief Free njs_runtime_t.
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318 */
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319 void
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320 X_njs_MB_free_keep_win(njs_runtime_t *rt) {
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321 /*
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322 * stop IO and timer watcher
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323 */
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324 if(rt->enable_io)
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325 ev_io_stop(&rt->iowatcher);
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326 if(rt->enable_timer)
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327 ev_timer_stop(&rt->tmwatcher);
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328
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329 X_MB_free_keep_win(rt->xrt);
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330 free(rt);
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331 }
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332
571
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333 int
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334 X_njs_MB_flush(njs_runtime_t *rt) {
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335 void *xrt = rt->xrt;
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diff changeset
336 int r;
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337 extern int _X_MB_flush_x_conn_for_nodejs(void *rt);
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diff changeset
338
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339 _X_MB_flush_x_conn_for_nodejs(xrt);
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diff changeset
340
571
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341 return r;
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342 }
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diff changeset
343
551
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diff changeset
344 njs_runtime_t *
550
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345 X_njs_MB_new(char *display_name, int w, int h) {
552
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diff changeset
346 njs_runtime_t *rt;
551
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diff changeset
347 void *xrt;
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348
552
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349 rt = (njs_runtime_t *)malloc(sizeof(njs_runtime_t));
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diff changeset
350 ASSERT(rt != NULL);
550
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diff changeset
351
551
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diff changeset
352 xrt = X_MB_new(display_name, w, h);
550
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diff changeset
353
552
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diff changeset
354 rt->xrt = xrt;
554
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diff changeset
355 rt->enable_io = 0;
552
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diff changeset
356 rt->enable_timer = 0; /* no timer, now */
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diff changeset
357
552
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diff changeset
358 return rt;
550
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359 }
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diff changeset
360
871
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361 /*! \brief Create a njs_runtime_t for an existed window.
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362 *
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diff changeset
363 * The njs_runtime_t created by this function must be free by
67d0fed24120 Export a function to create a runtime for an existed window for JS
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diff changeset
364 * X_njs_MB_free_keep_win().
67d0fed24120 Export a function to create a runtime for an existed window for JS
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diff changeset
365 */
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diff changeset
366 njs_runtime_t *
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diff changeset
367 X_njs_MB_new_with_win(void *display, long win) {
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diff changeset
368 njs_runtime_t *rt;
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diff changeset
369 void *xrt;
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370
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371 rt = (njs_runtime_t *)malloc(sizeof(njs_runtime_t));
67d0fed24120 Export a function to create a runtime for an existed window for JS
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diff changeset
372 ASSERT(rt != NULL);
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diff changeset
373
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diff changeset
374 xrt = X_MB_new_with_win((Display *)display, win);
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diff changeset
375
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diff changeset
376 rt->xrt = xrt;
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diff changeset
377 rt->enable_io = 0;
67d0fed24120 Export a function to create a runtime for an existed window for JS
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diff changeset
378 rt->enable_timer = 0; /* no timer, now */
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diff changeset
379
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diff changeset
380 return rt;
67d0fed24120 Export a function to create a runtime for an existed window for JS
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diff changeset
381 }
67d0fed24120 Export a function to create a runtime for an existed window for JS
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diff changeset
382
869
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diff changeset
383 /*! \brief Pass a X event to X runtime.
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diff changeset
384 */
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diff changeset
385 void
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diff changeset
386 X_njs_MB_handle_single_event(njs_runtime_t *rt, void *evt) {
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diff changeset
387 void *xrt = rt->xrt;
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diff changeset
388 extern void _X_MB_handle_single_event(void *rt, void *evt);
c18058fb48ee Export API for JS to feed X events.
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diff changeset
389
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diff changeset
390 _X_MB_handle_single_event(xrt, evt);
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diff changeset
391 }
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diff changeset
392
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diff changeset
393 /*! \brief Called at end of an iteration of event loop.
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diff changeset
394 */
c18058fb48ee Export API for JS to feed X events.
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diff changeset
395 void
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diff changeset
396 X_njs_MB_no_more_event(njs_runtime_t *rt) {
1039
176cba3ad32c IO manager for njs
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diff changeset
397 mb_rt_t *xrt = rt->xrt;
176cba3ad32c IO manager for njs
Thinker K.F. Li <thinker@codemud.net>
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diff changeset
398 extern void _X_MB_no_more_event(mb_rt_t *rt);
869
c18058fb48ee Export API for JS to feed X events.
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diff changeset
399
c18058fb48ee Export API for JS to feed X events.
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diff changeset
400 _X_MB_no_more_event(xrt);
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Thinker K.F. Li <thinker@codemud.net>
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diff changeset
401 }
c18058fb48ee Export API for JS to feed X events.
Thinker K.F. Li <thinker@codemud.net>
parents: 822
diff changeset
402
553
0a77b88500bf rename _X_njs_MB_get_runtime to _X_njs_MB_get_X_runtime
Thinker K.F. Li <thinker@branda.to>
parents: 552
diff changeset
403 /*! \brief Get X runtime that is backend of this njs runtime.
0a77b88500bf rename _X_njs_MB_get_runtime to _X_njs_MB_get_X_runtime
Thinker K.F. Li <thinker@branda.to>
parents: 552
diff changeset
404 */
1039
176cba3ad32c IO manager for njs
Thinker K.F. Li <thinker@codemud.net>
parents: 871
diff changeset
405 mb_rt_t *
553
0a77b88500bf rename _X_njs_MB_get_runtime to _X_njs_MB_get_X_runtime
Thinker K.F. Li <thinker@branda.to>
parents: 552
diff changeset
406 _X_njs_MB_get_X_runtime(njs_runtime_t *rt) {
552
dd8d32b4c899 rename ev_data to rt
Thinker K.F. Li <thinker@branda.to>
parents: 551
diff changeset
407 return rt->xrt;
550
127499ab2412 Upgrade ndoejs plugin to level of a new runtime.
Thinker K.F. Li <thinker@branda.to>
parents: 546
diff changeset
408 }