2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; version 2 of the License.
6 * This program is distributed in the hope that it will be useful,
7 * but WITHOUT ANY WARRANTY; without even the implied warranty of
8 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 * GNU General Public License for more details.
11 * You should have received a copy of the GNU General Public License
12 * along with this program; if not, write to the Free Software
13 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #include <sys/types.h>
21 #include <list/list.h>
22 #include <waiter/waiter.h>
28 typedef void (*process_exit_cb)(struct process *);
30 struct process_stdout {
36 /* caller-provided configuration */
42 process_exit_cb exit_cb;
52 /* post-execution information */
57 /* Process management system init. process_init must be called before
58 * process_create. The pointer returned can be talloc_free()-ed, or can be
59 * automatically freed through destruction of the ctx talloc tree.
61 struct procset *process_init(void *ctx, struct waitset *set, bool dry_run);
63 struct process *process_create(void *ctx);
65 /* process_release: release our reference to the process, but potentially
66 * leave it running. When the process exits, associated resources will
69 void process_release(struct process *process);
71 /* Synchronous interface. The process_run_sync, process_run_simple and
72 * process_get_stdout functions will all block while waiting for the child
73 * process to exit. Calls to the variadic versions must have a NULL terminating
74 * argument. For the process_get_stdout calls stderr will go to the log.
76 int process_run_sync(struct process *process);
77 int process_get_stdout_argv(void *ctx, struct process_stdout **stdout,
79 int process_get_stdout(void *ctx, struct process_stdout **stdout,
80 const char *path, ...) __attribute__((sentinel(0)));
82 static inline int process_run_simple_argv(void *ctx, const char *argv[])
84 return process_get_stdout_argv(ctx, NULL, argv);
86 #define process_run_simple(_ctx, _path, args...) \
87 process_get_stdout(_ctx, NULL, _path, args)
90 /* Asynchronous interface. When a process is run with process_run_async, the
91 * function returns without wait()ing for the child process to exit. If the
92 * process' exit_cb member is set, that callback will be invoked when the
95 int process_run_async(struct process *process);
97 void process_stop_async(struct process *process);
98 void process_stop_async_all(void);
100 /* helper function to determine if a process exited cleanly, with a non-zero
102 bool process_exit_ok(struct process *process);
104 /* Functions to assist callers using a custom stdout callback */
105 struct process *procinfo_get_process(struct process_info *procinfo);
106 int process_process_stdout(struct process_info *procinfo, char **line);
108 #endif /* PROCESS_H */