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[dev.cc] lib9: add more error reporting to windows runcmd

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%r format prints nothing useful on windows (see issue 9722).
Hopefully this will provide more clues about what happened.

Change-Id: Ic553bbdcde0c3cbfffa3a28f2168d6e75694e2ac
Reviewed-on: https://go-review.googlesource.com/3568
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Alex Brainman 2015-01-30 15:48:58 +11:00
parent eeebcd9db3
commit 3066d05498
1 changed files with 9 additions and 3 deletions
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12
src/lib9/run_windows.c
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@ -19,7 +19,7 @@ runcmd(char **argv)
WinRune *r;
STARTUPINFOW si;
PROCESS_INFORMATION pi;
DWORD code;
DWORD code, lasterr;
fmtstrinit(&fmt);
for(i=0; argv[i]; i++) {
@ -63,18 +63,24 @@ runcmd(char **argv)
si.hStdError = GetStdHandle(STD_ERROR_HANDLE);
if(!CreateProcessW(nil, r, nil, nil, TRUE, 0, nil, nil, &si, &pi)) {
werrstr("CreateProcess failed: errno=%d", (int)GetLastError());
free(r);
return -1;
}
free(r);
if(WaitForMultipleObjects(1, &pi.hProcess, FALSE, INFINITE) != 0)
if(WaitForMultipleObjects(1, &pi.hProcess, FALSE, INFINITE) != 0) {
werrstr("WaitForMultipleObjects failed: errno=%d", (int)GetLastError());
return -1;
}
i = GetExitCodeProcess(pi.hProcess, &code);
lasterr = GetLastError();
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
if(!i)
if(!i) {
werrstr("GetExitCodeProcess failed: errno=%d", (int)lasterr);
return -1;
}
if(code != 0) {
werrstr("unsuccessful exit status: %d", (int)code);
return -1;