diff options
Diffstat (limited to '1.1.x/src/couchdb/priv/spawnkillable')
| -rw-r--r-- | 1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable.sh | 20 | ||||
| -rw-r--r-- | 1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable_win.c | 145 |
2 files changed, 0 insertions, 165 deletions
diff --git a/1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable.sh b/1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable.sh deleted file mode 100644 index f8d042e3..00000000 --- a/1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable.sh +++ /dev/null @@ -1,20 +0,0 @@ -#! /bin/sh -e - -# Licensed under the Apache License, Version 2.0 (the "License"); you may not -# use this file except in compliance with the License. You may obtain a copy of -# the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -# License for the specific language governing permissions and limitations under -# the License. - -# The purpose of this script is to echo an OS specific command before launching -# the actual process. This provides a way for Erlang to hard-kill its external -# processes. - -echo "kill -9 $$" -exec $* diff --git a/1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable_win.c b/1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable_win.c deleted file mode 100644 index 06782315..00000000 --- a/1.1.x/src/couchdb/priv/spawnkillable/couchspawnkillable_win.c +++ /dev/null @@ -1,145 +0,0 @@ -// Licensed under the Apache License, Version 2.0 (the "License"); you may not -// use this file except in compliance with the License. You may obtain a copy of -// the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -// License for the specific language governing permissions and limitations under -// the License. - -// Do what 2 lines of shell script in couchspawnkillable does... -// * Create a new suspended process with the same (duplicated) standard -// handles as us. -// * Write a line to stdout, consisting of the path to ourselves, plus -// '--kill {pid}' where {pid} is the PID of the newly created process. -// * Un-suspend the new process. -// * Wait for the process to terminate. -// * Terminate with the child's exit-code. - -// Later, couch will call us with --kill and the PID, so we dutifully -// terminate the specified PID. - -#include <stdlib.h> -#include "windows.h" - -char *get_child_cmdline(int argc, char **argv) -{ - // make a new command-line, but skipping me. - // XXX - todo - spaces etc in args??? - int i; - char *p, *cmdline; - int nchars = 0; - int nthis = 1; - for (i=1;i<argc;i++) - nchars += strlen(argv[i])+1; - cmdline = p = malloc(nchars+1); - if (!cmdline) - return NULL; - for (i=1;i<argc;i++) { - nthis = strlen(argv[i]); - strncpy(p, argv[i], nthis); - p[nthis] = ' '; - p += nthis+1; - } - // Replace the last space we added above with a '\0' - cmdline[nchars-1] = '\0'; - return cmdline; -} - -// create the child process, returning 0, or the exit-code we will -// terminate with. -int create_child(int argc, char **argv, PROCESS_INFORMATION *pi) -{ - char buf[1024]; - DWORD dwcreate; - STARTUPINFO si; - char *cmdline; - if (argc < 2) - return 1; - cmdline = get_child_cmdline(argc, argv); - if (!cmdline) - return 2; - - memset(&si, 0, sizeof(si)); - si.cb = sizeof(si); - // depending on how *our* parent is started, we may or may not have - // a valid stderr stream - so although we try and duplicate it, only - // failing to duplicate stdin and stdout are considered fatal. - if (!DuplicateHandle(GetCurrentProcess(), - GetStdHandle(STD_INPUT_HANDLE), - GetCurrentProcess(), - &si.hStdInput, - 0, - TRUE, // inheritable - DUPLICATE_SAME_ACCESS) || - !DuplicateHandle(GetCurrentProcess(), - GetStdHandle(STD_OUTPUT_HANDLE), - GetCurrentProcess(), - &si.hStdOutput, - 0, - TRUE, // inheritable - DUPLICATE_SAME_ACCESS)) { - return 3; - } - DuplicateHandle(GetCurrentProcess(), - GetStdHandle(STD_ERROR_HANDLE), - GetCurrentProcess(), - &si.hStdError, - 0, - TRUE, // inheritable - DUPLICATE_SAME_ACCESS); - - si.dwFlags = STARTF_USESTDHANDLES; - dwcreate = CREATE_SUSPENDED; - if (!CreateProcess( NULL, cmdline, - NULL, - NULL, - TRUE, // inherit handles - dwcreate, - NULL, // environ - NULL, // cwd - &si, - pi)) - return 4; - return 0; -} - -// and here we go... -int main(int argc, char **argv) -{ - char out_buf[1024]; - int rc; - DWORD cbwritten; - DWORD exitcode; - PROCESS_INFORMATION pi; - if (argc==3 && strcmp(argv[1], "--kill")==0) { - HANDLE h = OpenProcess(PROCESS_TERMINATE, 0, atoi(argv[2])); - if (!h) - return 1; - if (!TerminateProcess(h, 0)) - return 2; - CloseHandle(h); - return 0; - } - // spawn the new suspended process - rc = create_child(argc, argv, &pi); - if (rc) - return rc; - // Write the 'terminate' command, which includes this PID, back to couch. - // *sob* - what about spaces etc? - sprintf_s(out_buf, sizeof(out_buf), "%s --kill %d\n", - argv[0], pi.dwProcessId); - WriteFile(GetStdHandle(STD_OUTPUT_HANDLE), out_buf, strlen(out_buf), - &cbwritten, NULL); - // Let the child process go... - ResumeThread(pi.hThread); - // Wait for the process to terminate so we can reflect the exit code - // back to couch. - WaitForSingleObject(pi.hProcess, INFINITE); - if (!GetExitCodeProcess(pi.hProcess, &exitcode)) - return 6; - return exitcode; -} |