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Kernel: Remove "requested wakeups" feature.

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I only needed this to support the WindowServer living inside the kernel.
Now that it's been migrated to userspace, this can go. :^)
This commit is contained in:
Andreas Kling 2019-03-05 13:33:50 +01:00
parent 91031346e5
commit 1cc32ebc7e
3 changed files with 3 additions and 16 deletions
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10
Kernel/Process.cpp
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@ -1029,10 +1029,8 @@ void Process::create_signal_trampolines_if_needed()
*(dword*)code_ptr = Syscall::SC_restore_signal_mask;
code_ptr += sizeof(dword);
*code_ptr++ = 0xcd; // int 0x82
// NOTE: Stack alignment padding doesn't matter when returning to ring0.
// Nothing matters really, as we're returning by replacing the entire TSS.
*code_ptr++ = 0x82;
*code_ptr++ = 0xb8; // mov eax, <dword>
*(dword*)code_ptr = Syscall::SC_sigreturn;
@ -2151,14 +2149,13 @@ int Process::sys$select(const Syscall::SC_select_params* params)
return error;
#ifdef DEBUG_IO
dbgprintf("%s<%u> selecting on (read:%u, write:%u), wakeup_req:%u, timeout=%p\n", name().characters(), pid(), m_select_read_fds.size(), m_select_write_fds.size(), m_wakeup_requested, timeout);
dbgprintf("%s<%u> selecting on (read:%u, write:%u), timeout=%p\n", name().characters(), pid(), m_select_read_fds.size(), m_select_write_fds.size(), timeout);
#endif
if (!m_wakeup_requested && (!timeout || (timeout->tv_sec || timeout->tv_usec))) {
if (!timeout || (timeout->tv_sec || timeout->tv_usec)) {
block(BlockedSelect);
Scheduler::yield();
}
m_wakeup_requested = false;
int markedfds = 0;
@ -2209,11 +2206,10 @@ int Process::sys$poll(pollfd* fds, int nfds, int timeout)
m_select_write_fds.append(fds[i].fd);
}
if (!m_wakeup_requested && timeout < 0) {
if (timeout < 0) {
block(BlockedSelect);
Scheduler::yield();
}
m_wakeup_requested = false;
int fds_with_revents = 0;