diff options
Diffstat (limited to 'run-command.c')
| -rw-r--r-- | run-command.c | 66 |
1 files changed, 59 insertions, 7 deletions
diff --git a/run-command.c b/run-command.c index 5a4dbb66d7..574b81d3e8 100644 --- a/run-command.c +++ b/run-command.c @@ -21,6 +21,7 @@ void child_process_clear(struct child_process *child) struct child_to_clean { pid_t pid; + struct child_process *process; struct child_to_clean *next; }; static struct child_to_clean *children_to_clean; @@ -28,10 +29,41 @@ static int installed_child_cleanup_handler; static void cleanup_children(int sig, int in_signal) { + struct child_to_clean *children_to_wait_for = NULL; + while (children_to_clean) { struct child_to_clean *p = children_to_clean; children_to_clean = p->next; + + if (p->process && !in_signal) { + struct child_process *process = p->process; + if (process->clean_on_exit_handler) { + trace_printf( + "trace: run_command: running exit handler for pid %" + PRIuMAX, (uintmax_t)p->pid + ); + process->clean_on_exit_handler(process); + } + } + kill(p->pid, sig); + + if (p->process && p->process->wait_after_clean) { + p->next = children_to_wait_for; + children_to_wait_for = p; + } else { + if (!in_signal) + free(p); + } + } + + while (children_to_wait_for) { + struct child_to_clean *p = children_to_wait_for; + children_to_wait_for = p->next; + + while (waitpid(p->pid, NULL, 0) < 0 && errno == EINTR) + ; /* spin waiting for process exit or error */ + if (!in_signal) free(p); } @@ -49,10 +81,11 @@ static void cleanup_children_on_exit(void) cleanup_children(SIGTERM, 0); } -static void mark_child_for_cleanup(pid_t pid) +static void mark_child_for_cleanup(pid_t pid, struct child_process *process) { struct child_to_clean *p = xmalloc(sizeof(*p)); p->pid = pid; + p->process = process; p->next = children_to_clean; children_to_clean = p; @@ -422,7 +455,7 @@ fail_pipe: if (cmd->pid < 0) error_errno("cannot fork() for %s", cmd->argv[0]); else if (cmd->clean_on_exit) - mark_child_for_cleanup(cmd->pid); + mark_child_for_cleanup(cmd->pid, cmd); /* * Wait for child's execvp. If the execvp succeeds (or if fork() @@ -483,7 +516,7 @@ fail_pipe: if (cmd->pid < 0 && (!cmd->silent_exec_failure || errno != ENOENT)) error_errno("cannot spawn %s", cmd->argv[0]); if (cmd->clean_on_exit && cmd->pid >= 0) - mark_child_for_cleanup(cmd->pid); + mark_child_for_cleanup(cmd->pid, cmd); argv_array_clear(&nargv); cmd->argv = sargv; @@ -634,7 +667,7 @@ int in_async(void) return !pthread_equal(main_thread, pthread_self()); } -void NORETURN async_exit(int code) +static void NORETURN async_exit(int code) { pthread_exit((void *)(intptr_t)code); } @@ -684,13 +717,26 @@ int in_async(void) return process_is_async; } -void NORETURN async_exit(int code) +static void NORETURN async_exit(int code) { exit(code); } #endif +void check_pipe(int err) +{ + if (err == EPIPE) { + if (in_async()) + async_exit(141); + + signal(SIGPIPE, SIG_DFL); + raise(SIGPIPE); + /* Should never happen, but just in case... */ + exit(141); + } +} + int start_async(struct async *async) { int need_in, need_out; @@ -752,7 +798,7 @@ int start_async(struct async *async) exit(!!async->proc(proc_in, proc_out, async->data)); } - mark_child_for_cleanup(async->pid); + mark_child_for_cleanup(async->pid, NULL); if (need_in) close(fdin[0]); @@ -825,8 +871,14 @@ const char *find_hook(const char *name) strbuf_reset(&path); strbuf_git_path(&path, "hooks/%s", name); - if (access(path.buf, X_OK) < 0) + if (access(path.buf, X_OK) < 0) { +#ifdef STRIP_EXTENSION + strbuf_addstr(&path, STRIP_EXTENSION); + if (access(path.buf, X_OK) >= 0) + return path.buf; +#endif return NULL; + } return path.buf; } |