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libc: implement poll with fswait3

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This commit is contained in:
K. Lange 2019-12-05 17:49:36 +09:00
parent a6251137f0
commit 366961a3b6
1 changed files with 10 additions and 3 deletions
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13
libc/poll/poll.c
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@ -24,6 +24,7 @@ int poll(struct pollfd *fds, nfds_t nfds, int timeout) {
int fswait_fds[count_pollin];
int fswait_backref[count_pollin];
int fswait_results[count_pollin];
int j = 0;
for (nfds_t i = 0; i < nfds; ++i) {
if (fds[i].events & POLLIN) {
@ -33,11 +34,17 @@ int poll(struct pollfd *fds, nfds_t nfds, int timeout) {
}
}
int ret = fswait2(count_pollin, fswait_fds, timeout);
int ret = fswait3(count_pollin, fswait_fds, timeout, fswait_results);
if (ret >= 0 && ret < count_pollin) {
fds[fswait_backref[ret]].revents = POLLIN;
return 1;
int count = 0;
for (int i = 0; i < count_pollin; ++i) {
if (fswait_results[i]) {
fds[fswait_backref[i]].revents = POLLIN;
count++;
}
}
return count;
} else if (ret == count_pollin) {
return 0;
} else {