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Commit | Line | Data |
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b1bf95bb JW |
1 | #ifndef RUN_COMMAND_H |
2 | #define RUN_COMMAND_H | |
3 | ||
b1bf95bb JW |
4 | enum { |
5 | ERR_RUN_COMMAND_FORK = 10000, | |
6 | ERR_RUN_COMMAND_EXEC, | |
4919bf03 | 7 | ERR_RUN_COMMAND_PIPE, |
b1bf95bb JW |
8 | ERR_RUN_COMMAND_WAITPID, |
9 | ERR_RUN_COMMAND_WAITPID_WRONG_PID, | |
10 | ERR_RUN_COMMAND_WAITPID_SIGNAL, | |
11 | ERR_RUN_COMMAND_WAITPID_NOEXIT, | |
12 | }; | |
13 | ||
f1000898 SP |
14 | struct child_process { |
15 | const char **argv; | |
ebcb5d16 | 16 | pid_t pid; |
4919bf03 | 17 | int in; |
f4bba25b | 18 | int out; |
f3b33f1d | 19 | int err; |
1568fea0 | 20 | const char *dir; |
ee493148 | 21 | const char *const *env; |
4919bf03 | 22 | unsigned close_in:1; |
f4bba25b | 23 | unsigned close_out:1; |
f1000898 | 24 | unsigned no_stdin:1; |
e4507ae8 | 25 | unsigned no_stdout:1; |
b73a4397 | 26 | unsigned no_stderr:1; |
f1000898 SP |
27 | unsigned git_cmd:1; /* if this is to be git sub-command */ |
28 | unsigned stdout_to_stderr:1; | |
29 | }; | |
30 | ||
ebcb5d16 SP |
31 | int start_command(struct child_process *); |
32 | int finish_command(struct child_process *); | |
f1000898 SP |
33 | int run_command(struct child_process *); |
34 | ||
95d3c4f5 | 35 | #define RUN_COMMAND_NO_STDIN 1 |
77cb17e9 | 36 | #define RUN_GIT_CMD 2 /*If this is to be git sub-command */ |
cd83c74c | 37 | #define RUN_COMMAND_STDOUT_TO_STDERR 4 |
9b0b5093 | 38 | int run_command_v_opt(const char **argv, int opt); |
1568fea0 | 39 | int run_command_v_opt_cd(const char **argv, int opt, const char *dir); |
3427b375 AR |
40 | |
41 | /* | |
42 | * env (the environment) is to be formatted like environ: "VAR=VALUE". | |
43 | * To unset an environment variable use just "VAR". | |
44 | */ | |
ee493148 | 45 | int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const char *const *env); |
b1bf95bb | 46 | |
2d22c208 JS |
47 | /* |
48 | * The purpose of the following functions is to feed a pipe by running | |
49 | * a function asynchronously and providing output that the caller reads. | |
50 | * | |
51 | * It is expected that no synchronization and mutual exclusion between | |
52 | * the caller and the feed function is necessary so that the function | |
53 | * can run in a thread without interfering with the caller. | |
54 | */ | |
55 | struct async { | |
56 | /* | |
57 | * proc writes to fd and closes it; | |
58 | * returns 0 on success, non-zero on failure | |
59 | */ | |
60 | int (*proc)(int fd, void *data); | |
61 | void *data; | |
62 | int out; /* caller reads from here and closes it */ | |
63 | pid_t pid; | |
64 | }; | |
65 | ||
66 | int start_async(struct async *async); | |
67 | int finish_async(struct async *async); | |
68 | ||
b1bf95bb | 69 | #endif |