1 | #include "owl.h" |
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2 | |
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3 | static int dispatch_active = 0; |
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4 | static int psa_active = 0; |
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5 | |
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6 | int _owl_select_timer_cmp(const owl_timer *t1, const owl_timer *t2) { |
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7 | return t1->time - t2->time; |
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8 | } |
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9 | |
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10 | int _owl_select_timer_eq(const owl_timer *t1, const owl_timer *t2) { |
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11 | return t1 == t2; |
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12 | } |
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13 | |
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14 | owl_timer *owl_select_add_timer(int after, int interval, void (*cb)(owl_timer *, void *), void (*destroy)(owl_timer*), void *data) |
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15 | { |
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16 | owl_timer *t = owl_malloc(sizeof(owl_timer)); |
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17 | GList **timers = owl_global_get_timerlist(&g); |
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18 | |
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19 | t->time = time(NULL) + after; |
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20 | t->interval = interval; |
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21 | t->callback = cb; |
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22 | t->destroy = destroy; |
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23 | t->data = data; |
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24 | |
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25 | *timers = g_list_insert_sorted(*timers, t, |
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26 | (GCompareFunc)_owl_select_timer_cmp); |
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27 | return t; |
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28 | } |
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29 | |
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30 | void owl_select_remove_timer(owl_timer *t) |
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31 | { |
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32 | GList **timers = owl_global_get_timerlist(&g); |
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33 | if (t && g_list_find(*timers, t)) { |
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34 | *timers = g_list_remove(*timers, t); |
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35 | if(t->destroy) { |
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36 | t->destroy(t); |
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37 | } |
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38 | owl_free(t); |
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39 | } |
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40 | } |
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41 | |
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42 | void owl_select_process_timers(struct timespec *timeout) |
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43 | { |
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44 | time_t now = time(NULL); |
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45 | GList **timers = owl_global_get_timerlist(&g); |
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46 | |
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47 | while(*timers) { |
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48 | owl_timer *t = (*timers)->data; |
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49 | int remove = 0; |
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50 | |
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51 | if(t->time > now) |
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52 | break; |
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53 | |
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54 | /* Reschedule if appropriate */ |
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55 | if(t->interval > 0) { |
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56 | t->time = now + t->interval; |
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57 | *timers = g_list_remove(*timers, t); |
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58 | *timers = g_list_insert_sorted(*timers, t, |
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59 | (GCompareFunc)_owl_select_timer_cmp); |
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60 | } else { |
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61 | remove = 1; |
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62 | } |
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63 | |
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64 | /* Do the callback */ |
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65 | t->callback(t, t->data); |
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66 | if(remove) { |
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67 | owl_select_remove_timer(t); |
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68 | } |
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69 | } |
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70 | |
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71 | if(*timers) { |
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72 | owl_timer *t = (*timers)->data; |
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73 | timeout->tv_sec = t->time - now; |
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74 | if (timeout->tv_sec > 60) |
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75 | timeout->tv_sec = 60; |
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76 | } else { |
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77 | timeout->tv_sec = 60; |
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78 | } |
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79 | |
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80 | timeout->tv_nsec = 0; |
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81 | } |
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82 | |
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83 | /* Returns the index of the dispatch for the file descriptor. */ |
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84 | int owl_select_find_dispatch(int fd) |
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85 | { |
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86 | int i, len; |
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87 | const owl_list *dl; |
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88 | const owl_dispatch *d; |
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89 | |
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90 | dl = owl_global_get_dispatchlist(&g); |
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91 | len = owl_list_get_size(dl); |
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92 | for(i = 0; i < len; i++) { |
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93 | d = owl_list_get_element(dl, i); |
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94 | if (d->fd == fd) return i; |
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95 | } |
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96 | return -1; |
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97 | } |
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98 | |
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99 | void owl_select_remove_dispatch_at(int elt) /* noproto */ |
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100 | { |
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101 | owl_list *dl; |
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102 | owl_dispatch *d; |
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103 | |
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104 | dl = owl_global_get_dispatchlist(&g); |
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105 | d = owl_list_get_element(dl, elt); |
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106 | owl_list_remove_element(dl, elt); |
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107 | if (d->destroy) { |
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108 | d->destroy(d); |
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109 | } |
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110 | } |
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111 | |
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112 | /* Adds a new owl_dispatch to the list, replacing existing ones if needed. */ |
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113 | void owl_select_add_dispatch(owl_dispatch *d) |
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114 | { |
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115 | int elt; |
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116 | owl_list *dl; |
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117 | |
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118 | d->needs_gc = 0; |
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119 | |
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120 | elt = owl_select_find_dispatch(d->fd); |
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121 | dl = owl_global_get_dispatchlist(&g); |
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122 | |
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123 | if (elt != -1) { /* If we have a dispatch for this FD */ |
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124 | owl_dispatch *d_old; |
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125 | d_old = owl_list_get_element(dl, elt); |
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126 | /* Ignore if we're adding the same dispatch again. Otherwise |
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127 | replace the old dispatch. */ |
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128 | if (d_old != d) { |
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129 | owl_select_remove_dispatch_at(elt); |
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130 | } |
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131 | } |
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132 | owl_list_append_element(dl, d); |
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133 | } |
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134 | |
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135 | /* Removes an owl_dispatch to the list, based on it's file descriptor. */ |
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136 | void owl_select_remove_dispatch(int fd) |
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137 | { |
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138 | int elt; |
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139 | owl_list *dl; |
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140 | owl_dispatch *d; |
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141 | |
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142 | elt = owl_select_find_dispatch(fd); |
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143 | if(elt == -1) { |
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144 | return; |
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145 | } else if(dispatch_active) { |
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146 | /* Defer the removal until dispatch is done walking the list */ |
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147 | dl = owl_global_get_dispatchlist(&g); |
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148 | d = owl_list_get_element(dl, elt); |
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149 | d->needs_gc = 1; |
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150 | } else { |
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151 | owl_select_remove_dispatch_at(elt); |
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152 | } |
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153 | } |
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154 | |
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155 | int owl_select_dispatch_count(void) |
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156 | { |
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157 | return owl_list_get_size(owl_global_get_dispatchlist(&g)); |
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158 | } |
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159 | |
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160 | int owl_select_add_perl_dispatch(int fd, SV *cb) |
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161 | { |
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162 | int elt; |
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163 | owl_dispatch *d; |
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164 | elt = owl_select_find_dispatch(fd); |
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165 | if (elt != -1) { |
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166 | d = owl_list_get_element(owl_global_get_dispatchlist(&g), elt); |
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167 | if (d->cfunc != owl_perlconfig_dispatch) { |
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168 | /* don't mess with non-perl dispatch functions from here. */ |
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169 | return 1; |
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170 | } |
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171 | } |
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172 | |
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173 | d = owl_malloc(sizeof(owl_dispatch)); |
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174 | d->fd = fd; |
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175 | d->cfunc = owl_perlconfig_dispatch; |
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176 | d->destroy = owl_perlconfig_dispatch_free; |
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177 | d->data = cb; |
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178 | owl_select_add_dispatch(d); |
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179 | return 0; |
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180 | } |
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181 | |
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182 | int owl_select_remove_perl_dispatch(int fd) |
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183 | { |
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184 | int elt; |
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185 | owl_dispatch *d; |
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186 | |
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187 | elt = owl_select_find_dispatch(fd); |
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188 | if (elt != -1) { |
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189 | d = owl_list_get_element(owl_global_get_dispatchlist(&g), elt); |
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190 | if (d->cfunc == owl_perlconfig_dispatch) { |
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191 | owl_select_remove_dispatch_at(elt); |
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192 | return 0; |
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193 | } |
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194 | } |
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195 | return 1; |
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196 | } |
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197 | |
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198 | int owl_select_dispatch_prepare_fd_sets(fd_set *r, fd_set *e) |
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199 | { |
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200 | int i, len, max_fd; |
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201 | owl_dispatch *d; |
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202 | const owl_list *dl; |
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203 | |
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204 | dl = owl_global_get_dispatchlist(&g); |
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205 | max_fd = 0; |
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206 | len = owl_select_dispatch_count(); |
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207 | for(i = 0; i < len; i++) { |
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208 | d = owl_list_get_element(dl, i); |
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209 | FD_SET(d->fd, r); |
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210 | FD_SET(d->fd, e); |
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211 | if (max_fd < d->fd) max_fd = d->fd; |
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212 | } |
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213 | return max_fd + 1; |
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214 | } |
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215 | |
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216 | void owl_select_gc(void) |
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217 | { |
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218 | int i; |
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219 | owl_list *dl; |
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220 | |
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221 | dl = owl_global_get_dispatchlist(&g); |
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222 | /* |
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223 | * Count down so we aren't set off by removing items from the list |
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224 | * during the iteration. |
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225 | */ |
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226 | for(i = owl_list_get_size(dl) - 1; i >= 0; i--) { |
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227 | const owl_dispatch *d = owl_list_get_element(dl, i); |
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228 | if(d->needs_gc) { |
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229 | owl_select_remove_dispatch_at(i); |
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230 | } |
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231 | } |
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232 | } |
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233 | |
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234 | void owl_select_dispatch(fd_set *fds, int max_fd) |
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235 | { |
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236 | int i, len; |
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237 | owl_dispatch *d; |
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238 | const owl_list *dl; |
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239 | |
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240 | dl = owl_global_get_dispatchlist(&g); |
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241 | len = owl_select_dispatch_count(); |
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242 | |
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243 | dispatch_active = 1; |
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244 | |
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245 | for(i = 0; i < len; i++) { |
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246 | d = owl_list_get_element(dl, i); |
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247 | /* While d shouldn't normally be null, the list may be altered by |
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248 | * functions we dispatch to. */ |
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249 | if (d != NULL && !d->needs_gc && FD_ISSET(d->fd, fds)) { |
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250 | if (d->cfunc != NULL) { |
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251 | d->cfunc(d); |
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252 | } |
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253 | } |
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254 | } |
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255 | |
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256 | dispatch_active = 0; |
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257 | owl_select_gc(); |
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258 | } |
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259 | |
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260 | static const owl_io_dispatch *owl_select_find_io_dispatch_by_fd(const int fd) |
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261 | { |
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262 | int i, len; |
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263 | const owl_list *dl; |
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264 | owl_io_dispatch *d; |
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265 | dl = owl_global_get_io_dispatch_list(&g); |
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266 | len = owl_list_get_size(dl); |
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267 | for(i = 0; i < len; i++) { |
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268 | d = owl_list_get_element(dl, i); |
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269 | if (d->fd == fd) return d; |
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270 | } |
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271 | return NULL; |
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272 | } |
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273 | |
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274 | static int owl_select_find_io_dispatch(const owl_io_dispatch *in) |
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275 | { |
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276 | int i, len; |
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277 | const owl_list *dl; |
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278 | |
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279 | if (in != NULL) { |
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280 | dl = owl_global_get_io_dispatch_list(&g); |
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281 | len = owl_list_get_size(dl); |
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282 | for(i = 0; i < len; i++) { |
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283 | const owl_io_dispatch *d = owl_list_get_element(dl, i); |
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284 | if (d == in) return i; |
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285 | } |
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286 | } |
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287 | return -1; |
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288 | } |
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289 | |
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290 | void owl_select_remove_io_dispatch(const owl_io_dispatch *in) |
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291 | { |
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292 | int elt; |
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293 | if (in != NULL) { |
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294 | elt = owl_select_find_io_dispatch(in); |
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295 | if (elt != -1) { |
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296 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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297 | owl_io_dispatch *d = owl_list_get_element(dl, elt); |
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298 | if (dispatch_active) |
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299 | d->needs_gc = 1; |
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300 | else { |
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301 | owl_list_remove_element(dl, elt); |
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302 | if (d->destroy) |
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303 | d->destroy(d); |
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304 | owl_free(d); |
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305 | } |
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306 | } |
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307 | } |
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308 | } |
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309 | |
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310 | void owl_select_io_dispatch_gc(void) |
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311 | { |
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312 | int i; |
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313 | owl_list *dl; |
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314 | |
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315 | dl = owl_global_get_io_dispatch_list(&g); |
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316 | /* |
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317 | * Count down so we aren't set off by removing items from the list |
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318 | * during the iteration. |
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319 | */ |
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320 | for(i = owl_list_get_size(dl) - 1; i >= 0; i--) { |
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321 | owl_io_dispatch *d = owl_list_get_element(dl, i); |
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322 | if(d->needs_gc) { |
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323 | owl_select_remove_io_dispatch(d); |
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324 | } |
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325 | } |
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326 | } |
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327 | |
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328 | /* Each FD may have at most one dispatcher. |
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329 | * If a new dispatch is added for an FD, the old one is removed. |
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330 | * mode determines what types of events are watched for, and may be any combination of: |
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331 | * OWL_IO_READ, OWL_IO_WRITE, OWL_IO_EXCEPT |
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332 | */ |
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333 | const owl_io_dispatch *owl_select_add_io_dispatch(int fd, int mode, void (*cb)(const owl_io_dispatch *, void *), void (*destroy)(const owl_io_dispatch *), void *data) |
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334 | { |
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335 | owl_io_dispatch *d = owl_malloc(sizeof(owl_io_dispatch)); |
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336 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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337 | |
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338 | d->fd = fd; |
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339 | d->needs_gc = 0; |
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340 | d->mode = mode; |
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341 | d->callback = cb; |
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342 | d->destroy = destroy; |
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343 | d->data = data; |
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344 | |
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345 | owl_select_remove_io_dispatch(owl_select_find_io_dispatch_by_fd(fd)); |
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346 | owl_list_append_element(dl, d); |
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347 | |
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348 | return d; |
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349 | } |
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350 | |
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351 | int owl_select_prepare_io_dispatch_fd_sets(fd_set *rfds, fd_set *wfds, fd_set *efds) { |
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352 | int i, len, max_fd; |
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353 | owl_io_dispatch *d; |
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354 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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355 | |
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356 | max_fd = 0; |
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357 | len = owl_list_get_size(dl); |
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358 | for (i = 0; i < len; i++) { |
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359 | d = owl_list_get_element(dl, i); |
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360 | if (d->mode & (OWL_IO_READ | OWL_IO_WRITE | OWL_IO_EXCEPT)) { |
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361 | if (max_fd < d->fd) max_fd = d->fd; |
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362 | if (d->mode & OWL_IO_READ) FD_SET(d->fd, rfds); |
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363 | if (d->mode & OWL_IO_WRITE) FD_SET(d->fd, wfds); |
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364 | if (d->mode & OWL_IO_EXCEPT) FD_SET(d->fd, efds); |
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365 | } |
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366 | } |
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367 | return max_fd + 1; |
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368 | } |
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369 | |
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370 | void owl_select_io_dispatch(const fd_set *rfds, const fd_set *wfds, const fd_set *efds, const int max_fd) |
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371 | { |
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372 | int i, len; |
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373 | owl_io_dispatch *d; |
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374 | owl_list *dl = owl_global_get_io_dispatch_list(&g); |
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375 | |
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376 | dispatch_active = 1; |
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377 | len = owl_list_get_size(dl); |
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378 | for (i = 0; i < len; i++) { |
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379 | d = owl_list_get_element(dl, i); |
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380 | if (d->fd < max_fd && d->callback != NULL && |
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381 | ((d->mode & OWL_IO_READ && FD_ISSET(d->fd, rfds)) || |
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382 | (d->mode & OWL_IO_WRITE && FD_ISSET(d->fd, wfds)) || |
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383 | (d->mode & OWL_IO_EXCEPT && FD_ISSET(d->fd, efds)))) { |
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384 | d->callback(d, d->data); |
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385 | } |
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386 | } |
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387 | dispatch_active = 0; |
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388 | owl_select_io_dispatch_gc(); |
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389 | } |
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390 | |
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391 | int owl_select_add_perl_io_dispatch(int fd, int mode, SV *cb) |
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392 | { |
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393 | const owl_io_dispatch *d = owl_select_find_io_dispatch_by_fd(fd); |
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394 | if (d != NULL && d->callback != owl_perlconfig_io_dispatch) { |
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395 | /* Don't mess with non-perl dispatch functions from here. */ |
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396 | return 1; |
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397 | } |
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398 | owl_select_add_io_dispatch(fd, mode, owl_perlconfig_io_dispatch, owl_perlconfig_io_dispatch_destroy, cb); |
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399 | return 0; |
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400 | } |
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401 | |
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402 | int owl_select_remove_perl_io_dispatch(int fd) |
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403 | { |
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404 | const owl_io_dispatch *d = owl_select_find_io_dispatch_by_fd(fd); |
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405 | if (d != NULL && d->callback == owl_perlconfig_io_dispatch) { |
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406 | /* Only remove perl io dispatchers from here. */ |
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407 | owl_select_remove_io_dispatch(d); |
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408 | return 0; |
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409 | } |
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410 | return 1; |
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411 | } |
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412 | |
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413 | int owl_select_aim_hack(fd_set *rfds, fd_set *wfds) |
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414 | { |
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415 | aim_conn_t *cur; |
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416 | aim_session_t *sess; |
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417 | int max_fd; |
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418 | |
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419 | max_fd = 0; |
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420 | sess = owl_global_get_aimsess(&g); |
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421 | for (cur = sess->connlist, max_fd = 0; cur; cur = cur->next) { |
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422 | if (cur->fd != -1) { |
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423 | FD_SET(cur->fd, rfds); |
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424 | if (cur->status & AIM_CONN_STATUS_INPROGRESS) { |
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425 | /* Yes, we're checking writable sockets here. Without it, AIM |
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426 | login is really slow. */ |
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427 | FD_SET(cur->fd, wfds); |
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428 | } |
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429 | |
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430 | if (cur->fd > max_fd) |
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431 | max_fd = cur->fd; |
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432 | } |
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433 | } |
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434 | return max_fd; |
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435 | } |
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436 | |
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437 | void owl_process_input_char(owl_input j) |
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438 | { |
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439 | int ret; |
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440 | owl_popwin *pw; |
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441 | owl_editwin *tw; |
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442 | |
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443 | owl_global_set_lastinputtime(&g, time(NULL)); |
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444 | pw=owl_global_get_popwin(&g); |
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445 | tw=owl_global_get_typwin(&g); |
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446 | |
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447 | owl_global_set_lastinputtime(&g, time(NULL)); |
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448 | /* find and activate the current keymap. |
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449 | * TODO: this should really get fixed by activating |
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450 | * keymaps as we switch between windows... |
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451 | */ |
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452 | if (pw && owl_popwin_is_active(pw) && owl_global_get_viewwin(&g)) { |
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453 | owl_context_set_popless(owl_global_get_context(&g), |
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454 | owl_global_get_viewwin(&g)); |
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455 | owl_function_activate_keymap("popless"); |
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456 | } else if (owl_global_is_typwin_active(&g) |
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457 | && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_ONELINE) { |
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458 | /* |
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459 | owl_context_set_editline(owl_global_get_context(&g), tw); |
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460 | owl_function_activate_keymap("editline"); |
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461 | */ |
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462 | } else if (owl_global_is_typwin_active(&g) |
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463 | && owl_editwin_get_style(tw)==OWL_EDITWIN_STYLE_MULTILINE) { |
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464 | owl_context_set_editmulti(owl_global_get_context(&g), tw); |
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465 | owl_function_activate_keymap("editmulti"); |
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466 | } else { |
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467 | owl_context_set_recv(owl_global_get_context(&g)); |
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468 | owl_function_activate_keymap("recv"); |
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469 | } |
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470 | /* now actually handle the keypress */ |
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471 | ret = owl_keyhandler_process(owl_global_get_keyhandler(&g), j); |
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472 | if (ret!=0 && ret!=1) { |
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473 | owl_function_makemsg("Unable to handle keypress"); |
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474 | } |
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475 | } |
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476 | |
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477 | void owl_select_mask_signals(sigset_t *oldmask) { |
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478 | sigset_t set; |
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479 | |
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480 | sigemptyset(&set); |
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481 | sigaddset(&set, SIGINT); |
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482 | sigaddset(&set, SIGTSTP); |
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483 | sigprocmask(SIG_BLOCK, &set, oldmask); |
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484 | } |
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485 | |
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486 | void owl_select_handle_intr(sigset_t *restore) |
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487 | { |
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488 | owl_input in; |
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489 | |
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490 | owl_global_unset_interrupted(&g); |
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491 | |
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492 | sigprocmask(SIG_SETMASK, restore, NULL); |
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493 | |
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494 | in.ch = in.uch = owl_global_get_startup_tio(&g)->c_cc[VINTR]; |
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495 | owl_process_input_char(in); |
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496 | } |
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497 | |
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498 | void owl_select_check_tstp(void) { |
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499 | if(owl_global_is_sigstp(&g)) { |
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500 | owl_function_makemsg("Use :suspend to suspend."); |
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501 | owl_global_unset_got_sigstp(&g); |
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502 | } |
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503 | } |
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504 | |
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505 | owl_ps_action *owl_select_add_pre_select_action(int (*cb)(owl_ps_action *, void *), void (*destroy)(owl_ps_action *), void *data) |
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506 | { |
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507 | owl_ps_action *a = owl_malloc(sizeof(owl_ps_action)); |
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508 | owl_list *psa_list = owl_global_get_psa_list(&g); |
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509 | a->needs_gc = 0; |
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510 | a->callback = cb; |
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511 | a->destroy = destroy; |
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512 | a->data = data; |
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513 | owl_list_append_element(psa_list, a); |
---|
514 | return a; |
---|
515 | } |
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516 | |
---|
517 | void owl_select_psa_gc(void) |
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518 | { |
---|
519 | int i; |
---|
520 | owl_list *psa_list; |
---|
521 | owl_ps_action *a; |
---|
522 | |
---|
523 | psa_list = owl_global_get_psa_list(&g); |
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524 | for (i = owl_list_get_size(psa_list) - 1; i >= 0; i--) { |
---|
525 | a = owl_list_get_element(psa_list, i); |
---|
526 | if (a->needs_gc) { |
---|
527 | owl_list_remove_element(psa_list, i); |
---|
528 | if (a->destroy) { |
---|
529 | a->destroy(a); |
---|
530 | } |
---|
531 | owl_free(a); |
---|
532 | } |
---|
533 | } |
---|
534 | } |
---|
535 | |
---|
536 | void owl_select_remove_pre_select_action(owl_ps_action *a) |
---|
537 | { |
---|
538 | a->needs_gc = 1; |
---|
539 | if (!psa_active) |
---|
540 | owl_select_psa_gc(); |
---|
541 | } |
---|
542 | |
---|
543 | int owl_select_do_pre_select_actions(void) |
---|
544 | { |
---|
545 | int i, len, ret; |
---|
546 | owl_list *psa_list; |
---|
547 | |
---|
548 | psa_active = 1; |
---|
549 | ret = 0; |
---|
550 | psa_list = owl_global_get_psa_list(&g); |
---|
551 | len = owl_list_get_size(psa_list); |
---|
552 | for (i = 0; i < len; i++) { |
---|
553 | owl_ps_action *a = owl_list_get_element(psa_list, i); |
---|
554 | if (a->callback != NULL && a->callback(a, a->data)) { |
---|
555 | ret = 1; |
---|
556 | } |
---|
557 | } |
---|
558 | psa_active = 0; |
---|
559 | owl_select_psa_gc(); |
---|
560 | return ret; |
---|
561 | } |
---|
562 | |
---|
563 | void owl_select(void) |
---|
564 | { |
---|
565 | int i, max_fd, max_fd2, aim_done, ret; |
---|
566 | fd_set r; |
---|
567 | fd_set w; |
---|
568 | fd_set e; |
---|
569 | fd_set aim_rfds, aim_wfds; |
---|
570 | struct timespec timeout; |
---|
571 | sigset_t mask; |
---|
572 | |
---|
573 | owl_select_process_timers(&timeout); |
---|
574 | |
---|
575 | owl_select_mask_signals(&mask); |
---|
576 | |
---|
577 | owl_select_check_tstp(); |
---|
578 | if(owl_global_is_interrupted(&g)) { |
---|
579 | owl_select_handle_intr(&mask); |
---|
580 | return; |
---|
581 | } |
---|
582 | FD_ZERO(&r); |
---|
583 | FD_ZERO(&w); |
---|
584 | FD_ZERO(&e); |
---|
585 | |
---|
586 | max_fd = owl_select_dispatch_prepare_fd_sets(&r, &e); |
---|
587 | max_fd2 = owl_select_prepare_io_dispatch_fd_sets(&r, &w, &e); |
---|
588 | if (max_fd < max_fd2) max_fd = max_fd2; |
---|
589 | |
---|
590 | /* AIM HACK: |
---|
591 | * |
---|
592 | * The problem - I'm not sure where to hook into the owl/faim |
---|
593 | * interface to keep track of when the AIM socket(s) open and |
---|
594 | * close. In particular, the bosconn thing throws me off. So, |
---|
595 | * rather than register particular dispatchers for AIM, I look up |
---|
596 | * the relevant FDs and add them to select's watch lists, then |
---|
597 | * check for them individually before moving on to the other |
---|
598 | * dispatchers. --asedeno |
---|
599 | */ |
---|
600 | aim_done = 1; |
---|
601 | FD_ZERO(&aim_rfds); |
---|
602 | FD_ZERO(&aim_wfds); |
---|
603 | if (owl_global_is_doaimevents(&g)) { |
---|
604 | aim_done = 0; |
---|
605 | max_fd2 = owl_select_aim_hack(&aim_rfds, &aim_wfds); |
---|
606 | if (max_fd < max_fd2) max_fd = max_fd2; |
---|
607 | for(i = 0; i <= max_fd2; i++) { |
---|
608 | if (FD_ISSET(i, &aim_rfds)) { |
---|
609 | FD_SET(i, &r); |
---|
610 | FD_SET(i, &e); |
---|
611 | } |
---|
612 | if (FD_ISSET(i, &aim_wfds)) { |
---|
613 | FD_SET(i, &w); |
---|
614 | FD_SET(i, &e); |
---|
615 | } |
---|
616 | } |
---|
617 | } |
---|
618 | /* END AIM HACK */ |
---|
619 | |
---|
620 | if (owl_select_do_pre_select_actions()) { |
---|
621 | timeout.tv_sec = 0; |
---|
622 | timeout.tv_nsec = 0; |
---|
623 | } |
---|
624 | |
---|
625 | ret = pselect(max_fd+1, &r, &w, &e, &timeout, &mask); |
---|
626 | |
---|
627 | if(ret < 0 && errno == EINTR) { |
---|
628 | owl_select_check_tstp(); |
---|
629 | if(owl_global_is_interrupted(&g)) { |
---|
630 | owl_select_handle_intr(NULL); |
---|
631 | } |
---|
632 | sigprocmask(SIG_SETMASK, &mask, NULL); |
---|
633 | return; |
---|
634 | } |
---|
635 | |
---|
636 | sigprocmask(SIG_SETMASK, &mask, NULL); |
---|
637 | |
---|
638 | if(ret > 0) { |
---|
639 | /* Merge fd_sets and clear AIM FDs. */ |
---|
640 | for(i = 0; i <= max_fd; i++) { |
---|
641 | /* Merge all interesting FDs into one set, since we have a |
---|
642 | single dispatch per FD. */ |
---|
643 | if (FD_ISSET(i, &r) || FD_ISSET(i, &w) || FD_ISSET(i, &e)) { |
---|
644 | /* AIM HACK: no separate dispatch, just process here if |
---|
645 | needed, and only once per run through. */ |
---|
646 | if (!aim_done && (FD_ISSET(i, &aim_rfds) || FD_ISSET(i, &aim_wfds))) { |
---|
647 | owl_process_aim(); |
---|
648 | aim_done = 1; |
---|
649 | } |
---|
650 | else { |
---|
651 | FD_SET(i, &r); |
---|
652 | } |
---|
653 | } |
---|
654 | } |
---|
655 | /* NOTE: the same dispatch function is called for both exceptional |
---|
656 | and read ready FDs. */ |
---|
657 | owl_select_dispatch(&r, max_fd); |
---|
658 | owl_select_io_dispatch(&r, &w, &e, max_fd); |
---|
659 | } |
---|
660 | } |
---|