diff options
Diffstat (limited to 'PCbuild/kill_python.c')
| -rw-r--r-- | PCbuild/kill_python.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/PCbuild/kill_python.c b/PCbuild/kill_python.c deleted file mode 100644 index dbc9425..0000000 --- a/PCbuild/kill_python.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Helper program for killing lingering python[_d].exe processes before - * building, thus attempting to avoid build failures due to files being - * locked. - */ - -#include <windows.h> -#include <wchar.h> -#include <tlhelp32.h> -#include <stdio.h> - -#pragma comment(lib, "psapi") - -#ifdef _DEBUG -#define PYTHON_EXE (L"python_d.exe") -#define PYTHON_EXE_LEN (12) -#define KILL_PYTHON_EXE (L"kill_python_d.exe") -#define KILL_PYTHON_EXE_LEN (17) -#else -#define PYTHON_EXE (L"python.exe") -#define PYTHON_EXE_LEN (10) -#define KILL_PYTHON_EXE (L"kill_python.exe") -#define KILL_PYTHON_EXE_LEN (15) -#endif - -int -main(int argc, char **argv) -{ - HANDLE hp, hsp, hsm; /* process, snapshot processes, snapshot modules */ - DWORD dac, our_pid; - size_t len; - wchar_t path[MAX_PATH+1]; - - MODULEENTRY32W me; - PROCESSENTRY32W pe; - - me.dwSize = sizeof(MODULEENTRY32W); - pe.dwSize = sizeof(PROCESSENTRY32W); - - memset(path, 0, MAX_PATH+1); - - our_pid = GetCurrentProcessId(); - - hsm = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, our_pid); - if (hsm == INVALID_HANDLE_VALUE) { - printf("CreateToolhelp32Snapshot[1] failed: %d\n", GetLastError()); - return 1; - } - - if (!Module32FirstW(hsm, &me)) { - printf("Module32FirstW[1] failed: %d\n", GetLastError()); - CloseHandle(hsm); - return 1; - } - - /* - * Enumerate over the modules for the current process in order to find - * kill_process[_d].exe, then take a note of the directory it lives in. - */ - do { - if (_wcsnicmp(me.szModule, KILL_PYTHON_EXE, KILL_PYTHON_EXE_LEN)) - continue; - - len = wcsnlen_s(me.szExePath, MAX_PATH) - KILL_PYTHON_EXE_LEN; - wcsncpy_s(path, MAX_PATH+1, me.szExePath, len); - - break; - - } while (Module32NextW(hsm, &me)); - - CloseHandle(hsm); - - if (path == NULL) { - printf("failed to discern directory of running process\n"); - return 1; - } - - /* - * Take a snapshot of system processes. Enumerate over the snapshot, - * looking for python processes. When we find one, verify it lives - * in the same directory we live in. If it does, kill it. If we're - * unable to kill it, treat this as a fatal error and return 1. - * - * The rationale behind this is that we're called at the start of the - * build process on the basis that we'll take care of killing any - * running instances, such that the build won't encounter permission - * denied errors during linking. If we can't kill one of the processes, - * we can't provide this assurance, and the build shouldn't start. - */ - - hsp = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0); - if (hsp == INVALID_HANDLE_VALUE) { - printf("CreateToolhelp32Snapshot[2] failed: %d\n", GetLastError()); - return 1; - } - - if (!Process32FirstW(hsp, &pe)) { - printf("Process32FirstW failed: %d\n", GetLastError()); - CloseHandle(hsp); - return 1; - } - - dac = PROCESS_QUERY_INFORMATION | PROCESS_VM_READ | PROCESS_TERMINATE; - do { - - /* - * XXX TODO: if we really wanted to be fancy, we could check the - * modules for all processes (not just the python[_d].exe ones) - * and see if any of our DLLs are loaded (i.e. python35[_d].dll), - * as that would also inhibit our ability to rebuild the solution. - * Not worth loosing sleep over though; for now, a simple check - * for just the python executable should be sufficient. - */ - - if (_wcsnicmp(pe.szExeFile, PYTHON_EXE, PYTHON_EXE_LEN)) - /* This isn't a python process. */ - continue; - - /* It's a python process, so figure out which directory it's in... */ - hsm = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pe.th32ProcessID); - if (hsm == INVALID_HANDLE_VALUE) - /* - * If our module snapshot fails (which will happen if we don't own - * the process), just ignore it and continue. (It seems different - * versions of Windows return different values for GetLastError() - * in this situation; it's easier to just ignore it and move on vs. - * stopping the build for what could be a false positive.) - */ - continue; - - if (!Module32FirstW(hsm, &me)) { - printf("Module32FirstW[2] failed: %d\n", GetLastError()); - CloseHandle(hsp); - CloseHandle(hsm); - return 1; - } - - do { - if (_wcsnicmp(me.szModule, PYTHON_EXE, PYTHON_EXE_LEN)) - /* Wrong module, we're looking for python[_d].exe... */ - continue; - - if (_wcsnicmp(path, me.szExePath, len)) - /* Process doesn't live in our directory. */ - break; - - /* Python process residing in the right directory, kill it! */ - hp = OpenProcess(dac, FALSE, pe.th32ProcessID); - if (!hp) { - printf("OpenProcess failed: %d\n", GetLastError()); - CloseHandle(hsp); - CloseHandle(hsm); - return 1; - } - - if (!TerminateProcess(hp, 1)) { - printf("TerminateProcess failed: %d\n", GetLastError()); - CloseHandle(hsp); - CloseHandle(hsm); - CloseHandle(hp); - return 1; - } - - CloseHandle(hp); - break; - - } while (Module32NextW(hsm, &me)); - - CloseHandle(hsm); - - } while (Process32NextW(hsp, &pe)); - - CloseHandle(hsp); - - return 0; -} - -/* vi: set ts=8 sw=4 sts=4 expandtab */ |