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Add i/o statistics to wait4() about child process

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Justine Tunney 2023-08-21 21:25:33 -07:00
parent b9eb656e41
commit 58ef4e6df8
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GPG key ID: BE714B4575D6E328
6 changed files with 39 additions and 8 deletions
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9
libc/stdio/vscanf.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/fmt/fmt.h"
#include "libc/stdio/lock.internal.h"
#include "libc/stdio/stdio.h"
/**
@ -24,5 +25,11 @@
* @see libc/fmt/vcscanf.h
*/
int vscanf(const char *fmt, va_list ap) {
return __vcscanf((int (*)(void *))fgetc, (void *)ungetc, stdin, fmt, ap);
int rc;
flockfile(stdin);
rc = __vcscanf((void *)fgetc_unlocked, //
(void *)ungetc_unlocked, //
stdin, fmt, ap);
flockfile(stdout);
return rc;
}