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| author | Samuel Mendoza-Jonas <sam@mendozajonas.com> | 2016-10-21 15:54:52 +1100 |
|---|---|---|
| committer | Samuel Mendoza-Jonas <sam@mendozajonas.com> | 2016-12-20 16:40:21 +1100 |
| commit | 0ba871a497f156dd474a333889cd92eaab9b08dc (patch) | |
| tree | 996a2ea1828f6a1f72b652e8f2d37df452668e12 /lib/process/process.h | |
| parent | 454f924bbcda7904c4348ef45c3d0d293768a48c (diff) | |
| download | talos-petitboot-0ba871a497f156dd474a333889cd92eaab9b08dc.tar.gz talos-petitboot-0ba871a497f156dd474a333889cd92eaab9b08dc.zip | |
lib/process: Allow process output to be retrieved on each event
Allow a custom callback function to be set when registering the IO
waiter for asynchronous processes.
To allow output from processes to be parsed as it is received, add
process_stdout_custom() which passes a new "line" parameter to
process_read_stdout_once() in order to consume output as it appears.
Users of a custom IO callback will only have access to the process_info
struct which is internal to lib/process; the function
procinfo_get_process() is added to allow these callers to access process
information.
Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Diffstat (limited to 'lib/process/process.h')
| -rw-r--r-- | lib/process/process.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/process/process.h b/lib/process/process.h index f75f197..65fdba8 100644 --- a/lib/process/process.h +++ b/lib/process/process.h @@ -23,6 +23,7 @@ struct process; struct procset; +struct process_info; typedef void (*process_exit_cb)(struct process *); @@ -34,6 +35,8 @@ struct process { bool add_stderr; process_exit_cb exit_cb; void *data; + waiter_cb stdout_cb; + void *stdout_data; /* runtime data */ pid_t pid; @@ -79,4 +82,8 @@ void process_stop_async(struct process *process); * exit status */ bool process_exit_ok(struct process *process); +/* Functions to assist callers using a custom stdout callback */ +struct process *procinfo_get_process(struct process_info *procinfo); +int process_stdout_custom(struct process_info *procinfo, char **line); + #endif /* PROCESS_H */ |
