5 ERR_RUN_COMMAND_FORK
= 10000,
8 ERR_RUN_COMMAND_WAITPID
,
9 ERR_RUN_COMMAND_WAITPID_WRONG_PID
,
10 ERR_RUN_COMMAND_WAITPID_SIGNAL
,
11 ERR_RUN_COMMAND_WAITPID_NOEXIT
,
14 struct child_process
{
21 const char *const *env
;
25 unsigned git_cmd
:1; /* if this is to be git sub-command */
26 unsigned stdout_to_stderr
:1;
29 int start_command(struct child_process
*);
30 int finish_command(struct child_process
*);
31 int run_command(struct child_process
*);
33 #define RUN_COMMAND_NO_STDIN 1
34 #define RUN_GIT_CMD 2 /*If this is to be git sub-command */
35 #define RUN_COMMAND_STDOUT_TO_STDERR 4
36 int run_command_v_opt(const char **argv
, int opt
);
37 int run_command_v_opt_cd(const char **argv
, int opt
, const char *dir
);
40 * env (the environment) is to be formatted like environ: "VAR=VALUE".
41 * To unset an environment variable use just "VAR".
43 int run_command_v_opt_cd_env(const char **argv
, int opt
, const char *dir
, const char *const *env
);
46 * The purpose of the following functions is to feed a pipe by running
47 * a function asynchronously and providing output that the caller reads.
49 * It is expected that no synchronization and mutual exclusion between
50 * the caller and the feed function is necessary so that the function
51 * can run in a thread without interfering with the caller.
55 * proc writes to fd and closes it;
56 * returns 0 on success, non-zero on failure
58 int (*proc
)(int fd
, void *data
);
60 int out
; /* caller reads from here and closes it */
64 int start_async(struct async
*async
);
65 int finish_async(struct async
*async
);