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Rewrite special file handling on Windows

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This change gets GNU grep working. What caused it to not work, is it
wouldn't write to an output file descriptor when its dev/ino equaled
/dev/null's. So now we invent special dev/ino values for these files
This commit is contained in:
Justine Tunney 2023-10-14 01:06:00 -07:00
parent aca2261cda
commit 2db2f40a98
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GPG key ID: BE714B4575D6E328
53 changed files with 485 additions and 299 deletions
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3
libc/calls/getloadavg-nt.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/sigset.internal.h"
#include "libc/calls/syscall_support-nt.internal.h"
#include "libc/dce.h"
#include "libc/fmt/conv.h"
@ -36,6 +37,7 @@ textwindows int sys_getloadavg_nt(double *a, int n) {
int i, rc;
uint64_t elapsed, used;
struct NtFileTime idle, kern, user;
BLOCK_SIGNALS;
pthread_spin_lock(&lock);
if (GetSystemTimes(&idle, &kern, &user)) {
elapsed = (FT(kern) - FT(kern1)) + (FT(user) - FT(user1));
@ -53,6 +55,7 @@ textwindows int sys_getloadavg_nt(double *a, int n) {
rc = __winerr();
}
pthread_spin_unlock(&lock);
ALLOW_SIGNALS;
return rc;
}