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retry interrupted kevent calls

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Many thanks to geekosaur in #haskell for help with this.
This commit is contained in:
Joey Hess 2012-06-18 22:02:57 +00:00 • committed by Joey Hess
parent a11825a1f1
commit b141d9bcc8
1 changed files with 6 additions and 1 deletions
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7
Utility/libkqueue.c
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@ -12,6 +12,7 @@
#include <unistd.h> #include <unistd.h>
#include <sys/event.h> #include <sys/event.h>
#include <sys/time.h> #include <sys/time.h>
#include <errno.h>
/* The specified fds are added to the set of fds being watched for changes. /* The specified fds are added to the set of fds being watched for changes.
* Fds passed to prior calls still take effect, so it's most efficient to * Fds passed to prior calls still take effect, so it's most efficient to
@ -30,7 +31,11 @@ signed int helper(const int kq, const int fdcnt, const int *fdlist,
0, 0); 0, 0);
} }
nev = kevent(kq, chlist, fdcnt, evlist, 1, timeout); while ((nev = kevent(kq, chlist, fdcnt, evlist, 1, timeout))) {
if (!(nev == -1 && errno == EINTR)) {
break;
}
}
if (nev == 1) if (nev == 1)
return evlist[0].ident; return evlist[0].ident;