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Fix poll zero timeout not being instant wakeup.

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This commit is contained in:
Jonas 'Sortie' Termansen 2015-05-22 19:48:03 +02:00
parent 40594eba1c
commit 2291076f19
2 changed files with 6 additions and 4 deletions
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8
kernel/poll.cpp
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@ -208,7 +208,7 @@ int sys_ppoll(struct pollfd* user_fds, nfds_t nfds,
volatile bool remote_woken = false; volatile bool remote_woken = false;
bool unexpected_error = false; bool unexpected_error = false;
nfds_t reqs = nfds; nfds_t reqs;
for ( reqs = 0; !unexpected_error && reqs < nfds; ) for ( reqs = 0; !unexpected_error && reqs < nfds; )
{ {
PollNode* node = nodes + reqs; PollNode* node = nodes + reqs;
@ -234,11 +234,13 @@ int sys_ppoll(struct pollfd* user_fds, nfds_t nfds,
// TODO: How should errors be handled? // TODO: How should errors be handled?
if ( desc->poll(&ctx, node) == 0 ) if ( desc->poll(&ctx, node) == 0 )
self_woken = true; self_woken = true;
else if ( errno != EAGAIN ) else if ( errno == EAGAIN )
errno = 0;
else
unexpected_error = self_woken = true; unexpected_error = self_woken = true;
} }
if ( timeout_ts.tv_sec < 0 ) if ( timeout_ts.tv_sec == 0 )
self_woken = true; self_woken = true;
while ( !(self_woken || remote_woken) ) while ( !(self_woken || remote_woken) )

2
trianglix/trianglix.cpp
View file

@ -1784,7 +1784,7 @@ static void HandleEvents(int kbfd, struct Desktop* desktop)
fds[0].fd = kbfd; fds[0].fd = kbfd;
fds[0].events = POLLIN; fds[0].events = POLLIN;
fds[0].revents = 0; fds[0].revents = 0;
if ( 0 < poll(fds, NFDS, -1) ) if ( 0 < poll(fds, NFDS, 0) )
{ {
if ( fds[0].revents ) if ( fds[0].revents )
HandleKeyboardEvents(kbfd, desktop); HandleKeyboardEvents(kbfd, desktop);