diff options
author | kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-04-30 11:23:08 +0000 |
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committer | kosaki <kosaki@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-04-30 11:23:08 +0000 |
commit | 3c68095b8a0d665b9ae94ec3c48fa4f30b3fb86a (patch) | |
tree | f5f4717e3836c469a4367d1e5bcf57e0fec0736a | |
parent | 225fa965bc5807a356b94944916af0573ab692a9 (diff) | |
download | ruby-3c68095b8a0d665b9ae94ec3c48fa4f30b3fb86a.tar.gz |
* thread.c (do_select): Change arugment type to rb_fdset_t.
Now do_select() is free from unexpected hangup if
HAVE_RB_FD_INIT=1 [Bug #4636]
* thread.c (rb_thread_fd_select, rb_thread_wait_fd_rw):
adapt new argument type.
* thread.c (rb_thread_select): make dummy implementation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31396 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | ChangeLog | 11 | ||||
-rw-r--r-- | thread.c | 64 |
2 files changed, 48 insertions, 27 deletions
@@ -1,3 +1,14 @@ +Sat Apr 30 20:18:43 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com> + + * thread.c (do_select): Change arugment type to rb_fdset_t. + Now do_select() is free from unexpected hangup if + HAVE_RB_FD_INIT=1 [Bug #4636] + + * thread.c (rb_thread_fd_select, rb_thread_wait_fd_rw): + adapt new argument type. + + * thread.c (rb_thread_select): make dummy implementation. + Sat Apr 30 20:16:53 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com> * thread.c (rb_fd_copy): Change function argument. Now @@ -2497,13 +2497,13 @@ subtract_tv(struct timeval *rest, const struct timeval *wait) #endif static int -do_select(int n, fd_set *read, fd_set *write, fd_set *except, +do_select(int n, rb_fdset_t *read, rb_fdset_t *write, rb_fdset_t *except, struct timeval *timeout) { int result, lerrno; - fd_set UNINITIALIZED_VAR(orig_read); - fd_set UNINITIALIZED_VAR(orig_write); - fd_set UNINITIALIZED_VAR(orig_except); + rb_fdset_t UNINITIALIZED_VAR(orig_read); + rb_fdset_t UNINITIALIZED_VAR(orig_write); + rb_fdset_t UNINITIALIZED_VAR(orig_except); double limit = 0; struct timeval wait_rest; # if defined(__CYGWIN__) || defined(_WIN32) @@ -2522,9 +2522,18 @@ do_select(int n, fd_set *read, fd_set *write, fd_set *except, timeout = &wait_rest; } - if (read) orig_read = *read; - if (write) orig_write = *write; - if (except) orig_except = *except; + if (read) { + rb_fd_init(&orig_read); + rb_fd_copy(&orig_read, read); + } + if (write) { + rb_fd_init(&orig_write); + rb_fd_copy(&orig_write, write); + } + if (except) { + rb_fd_init(&orig_except); + rb_fd_copy(&orig_except, except); + } retry: lerrno = 0; @@ -2541,13 +2550,16 @@ do_select(int n, fd_set *read, fd_set *write, fd_set *except, wait = (timeout == 0 || cmp_tv(&wait_100ms, timeout) < 0) ? &wait_100ms : timeout; BLOCKING_REGION({ do { - result = select(n, read, write, except, wait); + result = rb_fd_select(n, read, write, except, wait); if (result < 0) lerrno = errno; if (result != 0) break; - if (read) *read = orig_read; - if (write) *write = orig_write; - if (except) *except = orig_except; + if (read) + rb_fd_copy(read, &orig_read); + if (write) + rb_fd_copy(write, &orig_write); + if (except) + rb_fd_copy(except, &orig_except); if (timeout) { struct timeval elapsed; gettimeofday(&elapsed, NULL); @@ -2565,7 +2577,7 @@ do_select(int n, fd_set *read, fd_set *write, fd_set *except, } #else BLOCKING_REGION({ - result = select(n, read, write, except, timeout); + result = rb_fd_select(n, read, write, except, timeout); if (result < 0) lerrno = errno; }, ubf_select, GET_THREAD()); #endif @@ -2578,9 +2590,12 @@ do_select(int n, fd_set *read, fd_set *write, fd_set *except, #ifdef ERESTART case ERESTART: #endif - if (read) *read = orig_read; - if (write) *write = orig_write; - if (except) *except = orig_except; + if (read) + rb_fd_copy(read, &orig_read); + if (write) + rb_fd_copy(write, &orig_write); + if (except) + rb_fd_copy(except, &orig_except); if (timeout) { double d = limit - timeofday(); @@ -2615,10 +2630,10 @@ rb_thread_wait_fd_rw(int fd, int read) FD_SET(fd, &set); if (read) { - result = do_select(fd + 1, rb_fd_ptr(&set), 0, 0, 0); + result = do_select(fd + 1, &set, 0, 0, 0); } else { - result = do_select(fd + 1, 0, rb_fd_ptr(&set), 0, 0); + result = do_select(fd + 1, 0, &set, 0, 0); } rb_fd_term(&set); @@ -2657,7 +2672,7 @@ rb_thread_select(int max, fd_set * read, fd_set * write, fd_set * except, return 0; } else { - return do_select(max, read, write, except, timeout); + return select(max, read, write, except, timeout); } } @@ -2666,8 +2681,6 @@ int rb_thread_fd_select(int max, rb_fdset_t * read, rb_fdset_t * write, rb_fdset_t * except, struct timeval *timeout) { - fd_set *r = NULL, *w = NULL, *e = NULL; - if (!read && !write && !except) { if (!timeout) { rb_thread_sleep_forever(); @@ -2678,18 +2691,15 @@ rb_thread_fd_select(int max, rb_fdset_t * read, rb_fdset_t * write, rb_fdset_t * } if (read) { - rb_fd_resize(max - 1, read); - r = rb_fd_ptr(read); + rb_fd_resize(max - 1, read); } if (write) { - rb_fd_resize(max - 1, write); - w = rb_fd_ptr(write); + rb_fd_resize(max - 1, write); } if (except) { - rb_fd_resize(max - 1, except); - e = rb_fd_ptr(except); + rb_fd_resize(max - 1, except); } - return do_select(max, r, w, e, timeout); + return do_select(max, read, write, except, timeout); } |