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Make posix_spawn faster on Windows

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This commit is contained in:
Justine Tunney 2023-08-20 02:13:02 -07:00
parent d6f72aa4a6
commit ec957491ea
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GPG key ID: BE714B4575D6E328
15 changed files with 514 additions and 123 deletions
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16
libc/calls/raise.c
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@ -21,6 +21,8 @@
#include "libc/calls/syscall-sysv.internal.h"
#include "libc/dce.h"
#include "libc/intrin/strace.internal.h"
#include "libc/intrin/weaken.h"
#include "libc/nt/runtime.h"
#include "libc/runtime/internal.h"
#include "libc/sysv/consts/sicode.h"
#include "libc/sysv/consts/sig.h"
@ -62,10 +64,20 @@ int raise(int sig) {
RaiseSigFpe();
rc = 0;
#endif
} else if (!IsWindows() && !IsMetal()) {
} else if (IsLinux() || IsXnu() || IsFreebsd() || IsOpenbsd() || IsNetbsd()) {
rc = sys_tkill(gettid(), sig, 0);
} else if (IsWindows() || IsMetal()) {
if (IsWindows() && sig == SIGKILL) {
// TODO(jart): Isn't this implemented by __sig_raise()?
if (_weaken(__restore_console_win32)) {
_weaken(__restore_console_win32)();
}
ExitProcess(sig);
} else {
rc = __sig_raise(sig, SI_TKILL);
}
} else {
rc = __sig_raise(sig, SI_TKILL);
__builtin_unreachable();
}
STRACE("...raise(%G) → %d% m", sig, rc);
return rc;