| 118 | #include <terminal/terminal.h> |
| 119 | |
| 120 | int lwp_pgrp_delete(rt_processgroup_t group) |
| 121 | { |
| 122 | int retry = 1; |
| 123 | rt_session_t session = RT_NULL; |
| 124 | int is_session_free = 0; |
| 125 | lwp_tty_t ctty; |
| 126 | |
| 127 | /* parameter check */ |
| 128 | if (group == RT_NULL) |
| 129 | { |
| 130 | return -EINVAL; |
| 131 | } |
| 132 | |
| 133 | LOG_I("delete(ptr:%p, pgid:%d)() by pid:%d", group, group->pgid, lwp_getpid()); |
| 134 | |
| 135 | while (retry) |
| 136 | { |
| 137 | retry = 0; |
| 138 | session = lwp_session_find(lwp_sid_get_bypgrp(group)); |
| 139 | if (session) |
| 140 | { |
| 141 | ctty = session->ctty; |
| 142 | if (ctty) |
| 143 | { |
| 144 | /** |
| 145 | * Note: it's safe to release pgrp even we do this multiple, |
| 146 | * the neccessary check is done before the tty actually detach |
| 147 | */ |
| 148 | tty_lock(ctty); |
| 149 | tty_rel_pgrp(ctty, group); // tty_unlock |
| 150 | } |
| 151 | |
| 152 | SESS_LOCK(session); |
| 153 | PGRP_LOCK_NESTED(group); |
| 154 | if (group->session == session && session->ctty == ctty) |
| 155 | { |
| 156 | rt_object_detach(&(group->object)); |
| 157 | is_session_free = lwp_session_remove(session, group); |
| 158 | } |
| 159 | else |
| 160 | { |
| 161 | retry = 1; |
| 162 | |
| 163 | } |
| 164 | |
| 165 | PGRP_UNLOCK(group); |
| 166 | if (is_session_free != 1) |
| 167 | SESS_UNLOCK(session); |
| 168 | } |
| 169 | else |
| 170 | { |
| 171 | rt_object_detach(&(group->object)); |
| 172 | } |
| 173 | } |
| 174 | |
| 175 | lwp_pgrp_dec_ref(group); |
| 176 | return 0; |
| 177 | } |
no test coverage detected