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Add close-on-exec flag for file descriptors.

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I was surprised to find that dup()'ed fds don't share the close-on-exec flag.
That means it has to be stored separately from the FileDescriptor object.
This commit is contained in:
Andreas Kling 2018-11-13 01:36:31 +01:00
parent 19b9401487
commit 97c799576a
10 changed files with 74 additions and 35 deletions
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4
Kernel/Scheduler.cpp
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@ -52,14 +52,14 @@ bool Scheduler::pick_next()
if (process.state() == Process::BlockedRead) {
ASSERT(process.m_fdBlockedOnRead != -1);
// FIXME: Block until the amount of data wanted is available.
if (process.m_file_descriptors[process.m_fdBlockedOnRead]->hasDataAvailableForRead())
if (process.m_fds[process.m_fdBlockedOnRead].descriptor->hasDataAvailableForRead())
process.unblock();
return true;
}
if (process.state() == Process::BlockedWrite) {
ASSERT(process.m_blocked_fd != -1);
if (process.m_file_descriptors[process.m_blocked_fd]->can_write())
if (process.m_fds[process.m_blocked_fd].descriptor->can_write())
process.unblock();
return true;
}