tor/src/lib/process/process_unix.h
Alexander Færøy 89393a77e5 Add process_get_pid() to the Process subsystem.
This patch adds support for getting the unique process identifier from a
given process_t. This patch implements both support for both the Unix
and Microsoft Windows backend.

See: https://bugs.torproject.org/28179
2018-12-17 16:39:28 -05:00

67 lines
2.2 KiB
C

/* Copyright (c) 2003-2004, Roger Dingledine
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
* \file process_unix.h
* \brief Header for process_unix.c
**/
#ifndef TOR_PROCESS_UNIX_H
#define TOR_PROCESS_UNIX_H
#ifndef _WIN32
#include "orconfig.h"
#include "lib/malloc/malloc.h"
#include <event2/event.h>
struct process_t;
struct process_unix_t;
typedef struct process_unix_t process_unix_t;
process_unix_t *process_unix_new(void);
void process_unix_free_(process_unix_t *unix_process);
#define process_unix_free(s) \
FREE_AND_NULL(process_unix_t, process_unix_free_, (s))
process_status_t process_unix_exec(struct process_t *process);
process_pid_t process_unix_get_pid(struct process_t *process);
int process_unix_write(struct process_t *process, buf_t *buffer);
int process_unix_read_stdout(struct process_t *process, buf_t *buffer);
int process_unix_read_stderr(struct process_t *process, buf_t *buffer);
#ifdef PROCESS_UNIX_PRIVATE
struct process_unix_handle_t;
typedef struct process_unix_handle_t process_unix_handle_t;
STATIC void stdout_read_callback(evutil_socket_t fd, short event, void *data);
STATIC void stderr_read_callback(evutil_socket_t fd, short event, void *data);
STATIC void stdin_write_callback(evutil_socket_t fd, short event, void *data);
STATIC void process_unix_start_reading(process_unix_handle_t *);
STATIC void process_unix_stop_reading(process_unix_handle_t *);
STATIC void process_unix_start_writing(process_unix_handle_t *);
STATIC void process_unix_stop_writing(process_unix_handle_t *);
STATIC void process_unix_waitpid_callback(int status, void *data);
STATIC void process_unix_setup_handle(process_t *process,
process_unix_handle_t *handle,
short flags,
event_callback_fn callback);
STATIC int process_unix_read_handle(process_t *,
process_unix_handle_t *,
buf_t *);
#endif /* defined(PROCESS_UNIX_PRIVATE). */
#endif /* defined(_WIN32). */
#endif /* defined(TOR_PROCESS_UNIX_H). */