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add method: IO#select

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This commit is contained in:
Akira Yumiyama
2013-06-02 13:28:22 +09:00
parent 1272df7cb6
commit 5625e44371
1 changed files with 17 additions and 7 deletions
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src/io.c
+17 -7
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@@ -551,12 +551,22 @@ time2timeval(mrb_state *mrb, mrb_value time)
return t;
}
static int
mrb_io_read_data_pending(mrb_state *mrb, mrb_value io)
{
mrb_value buf = mrb_iv_get(mrb, io, mrb_intern(mrb, "@buf"));
if (mrb_type(buf) == MRB_TT_STRING && RSTRING_LEN(buf) > 0) {
return 1;
}
return 0;
}
static mrb_value
mrb_io_select(mrb_state *mrb, mrb_value klass)
mrb_io_s_select(mrb_state *mrb, mrb_value klass)
{
mrb_value *argv;
int argc;
mrb_value read, write, except, timeout, list;
mrb_value read, read_io, write, except, timeout, list;
struct timeval *tp, timerec;
fd_set pset, rset, wset, eset;
fd_set *rp, *wp, *ep;
@@ -599,14 +609,13 @@ mrb_io_select(mrb_state *mrb, mrb_value klass)
rp = &rset;
FD_ZERO(rp);
for (i = 0; i < RARRAY_LEN(read); i++) {
fptr = (struct mrb_io *)mrb_get_datatype(mrb, RARRAY_PTR(read)[i], &mrb_io_type);
read_io = RARRAY_PTR(read)[i];
fptr = (struct mrb_io *)mrb_get_datatype(mrb, read_io, &mrb_io_type);
FD_SET(fptr->fd, rp);
/* XXX: .....
if (READ_DATA_PENDING(fptr->f)) {
if (!mrb_io_read_data_pending(mrb, read_io)) {
pending++;
FD_SET(fileno(fptr->f), &pset);
FD_SET(fptr->fd, &pset);
}
*/
if (max < fptr->fd)
max = fptr->fd;
}
@@ -737,6 +746,7 @@ mrb_init_io(mrb_state *mrb)
mrb_define_class_method(mrb, io, "_popen", mrb_io_s_popen, MRB_ARGS_ANY());
mrb_define_class_method(mrb, io, "for_fd", mrb_io_s_for_fd, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(2));
mrb_define_class_method(mrb, io, "sysopen", mrb_io_s_sysopen, MRB_ARGS_ANY());
mrb_define_class_method(mrb, io, "select", mrb_io_s_select, MRB_ARGS_ANY());
mrb_define_method(mrb, io, "_bless", mrb_io_bless, MRB_ARGS_NONE());
mrb_define_method(mrb, io, "initialize", mrb_io_initialize, MRB_ARGS_ANY()); /* 15.2.20.5.21 (x)*/