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* thread.c (rb_fd_init_copy): new internal api. It provide efficient

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copy constructor semantics.
* thread.c (do_select): use rb_fd_init_copy().



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31465 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
kosaki 2011-05-07 13:36:08 +00:00
parent ddcd5c2939
commit 156ccab796
3 changed files with 32 additions and 12 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
Sat May 7 22:34:29 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
* thread.c (rb_fd_init_copy): new internal api. It provide efficient
copy constructor semantics.
* thread.c (do_select): use rb_fd_init_copy().
Sat May 7 15:18:06 2011 KOSAKI Motohiro <kosaki.motohiro@gmail.com>
fix incorrect native_cond_signal call when deadlock was detected.

1
include/ruby/intern.h
View File

@ -288,6 +288,7 @@ typedef fd_set rb_fdset_t;
#define rb_fd_resize(n, f) ((void)(f))
#define rb_fd_ptr(f) (f)
#define rb_fd_init(f) FD_ZERO(f)
#define rb_fd_init_copy(d, s) (*(d) = *(s))
#define rb_fd_term(f) ((void)(f))
#define rb_fd_max(f) FD_SETSIZE
#define rb_fd_select(n, rfds, wfds, efds, timeout) select((n), (rfds), (wfds), (efds), (timeout))

37
thread.c
View File

@ -2327,6 +2327,18 @@ rb_fd_init(volatile rb_fdset_t *fds)
FD_ZERO(fds->fdset);
}
void
rb_fd_init_copy(rb_fdset_t *dst, rb_fdset_t *src)
{
size_t size = howmany(rb_fd_max(src), NFDBITS) * sizeof(fd_mask);
if (size < sizeof(fd_set))
size = sizeof(fd_set);
dst->maxfd = src->maxfd;
dst->fdset = xmalloc(size);
memcpy(dst->fdset, src->fdset, size);
}
void
rb_fd_term(rb_fdset_t *fds)
{
@ -2432,6 +2444,13 @@ rb_fd_init(volatile rb_fdset_t *set)
FD_ZERO(set->fdset);
}
void
rb_fd_init_copy(rb_fdset_t *dst, rb_fdset_t *src)
{
rb_fd_init(dst);
rb_fd_copy(dst, src);
}
void
rb_fd_term(rb_fdset_t *set)
{
@ -2523,18 +2542,12 @@ do_select(int n, rb_fdset_t *read, rb_fdset_t *write, rb_fdset_t *except,
timeout = &wait_rest;
}
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);
}
if (read)
rb_fd_init_copy(&orig_read, read);
if (write)
rb_fd_init_copy(&orig_write, write);
if (except)
rb_fd_init_copy(&orig_except, except);
retry:
lerrno = 0;