2005-07-31 19:17:43 +00:00
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#ifndef RUN_COMMAND_H
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#define RUN_COMMAND_H
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2007-03-10 08:28:00 +00:00
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struct child_process {
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const char **argv;
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2007-03-10 08:28:05 +00:00
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pid_t pid;
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2008-02-21 22:42:56 +00:00
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/*
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* Using .in, .out, .err:
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* - Specify 0 for no redirections (child inherits stdin, stdout,
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* stderr from parent).
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* - Specify -1 to have a pipe allocated as follows:
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* .in: returns the writable pipe end; parent writes to it,
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* the readable pipe end becomes child's stdin
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* .out, .err: returns the readable pipe end; parent reads from
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* it, the writable pipe end becomes child's stdout/stderr
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* The caller of start_command() must close the returned FDs
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* after it has completed reading from/writing to it!
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* - Specify > 0 to set a channel to a particular FD as follows:
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* .in: a readable FD, becomes child's stdin
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* .out: a writable FD, becomes child's stdout/stderr
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2010-02-05 20:57:37 +00:00
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* .err: a writable FD, becomes child's stderr
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2008-02-21 22:42:56 +00:00
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* The specified FD is closed by start_command(), even in case
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* of errors!
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*/
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2007-03-10 08:28:08 +00:00
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int in;
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2007-03-12 18:37:45 +00:00
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int out;
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2007-10-19 19:47:58 +00:00
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int err;
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2007-05-22 21:48:23 +00:00
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const char *dir;
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2007-05-22 21:48:47 +00:00
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const char *const *env;
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2007-03-10 08:28:00 +00:00
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unsigned no_stdin:1;
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2007-03-12 18:37:55 +00:00
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unsigned no_stdout:1;
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2007-11-11 07:29:37 +00:00
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unsigned no_stderr:1;
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2007-03-10 08:28:00 +00:00
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unsigned git_cmd:1; /* if this is to be git sub-command */
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2009-07-04 19:26:42 +00:00
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unsigned silent_exec_failure:1;
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2007-03-10 08:28:00 +00:00
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unsigned stdout_to_stderr:1;
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2009-12-30 10:53:16 +00:00
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unsigned use_shell:1;
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2008-07-22 07:12:46 +00:00
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void (*preexec_cb)(void);
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2007-03-10 08:28:00 +00:00
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};
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2007-03-10 08:28:05 +00:00
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int start_command(struct child_process *);
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int finish_command(struct child_process *);
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2007-03-10 08:28:00 +00:00
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int run_command(struct child_process *);
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2009-01-16 19:09:59 +00:00
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extern int run_hook(const char *index_file, const char *name, ...);
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2006-12-31 02:55:22 +00:00
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#define RUN_COMMAND_NO_STDIN 1
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2006-01-11 02:12:17 +00:00
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#define RUN_GIT_CMD 2 /*If this is to be git sub-command */
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2006-12-31 02:55:19 +00:00
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#define RUN_COMMAND_STDOUT_TO_STDERR 4
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2009-07-04 19:26:42 +00:00
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#define RUN_SILENT_EXEC_FAILURE 8
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2009-12-30 10:53:16 +00:00
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#define RUN_USING_SHELL 16
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2006-12-31 02:55:15 +00:00
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int run_command_v_opt(const char **argv, int opt);
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2007-05-23 20:21:39 +00:00
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/*
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* env (the environment) is to be formatted like environ: "VAR=VALUE".
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* To unset an environment variable use just "VAR".
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*/
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2007-05-22 21:48:47 +00:00
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int run_command_v_opt_cd_env(const char **argv, int opt, const char *dir, const char *const *env);
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2005-07-31 19:17:43 +00:00
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2007-10-19 19:48:00 +00:00
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/*
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* The purpose of the following functions is to feed a pipe by running
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* a function asynchronously and providing output that the caller reads.
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*
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* It is expected that no synchronization and mutual exclusion between
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* the caller and the feed function is necessary so that the function
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* can run in a thread without interfering with the caller.
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*/
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struct async {
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/*
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2010-02-05 20:57:38 +00:00
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* proc reads from in; closes it before return
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* proc writes to out; closes it before return
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2007-10-19 19:48:00 +00:00
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* returns 0 on success, non-zero on failure
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*/
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2010-02-05 20:57:38 +00:00
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int (*proc)(int in, int out, void *data);
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2007-10-19 19:48:00 +00:00
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void *data;
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2010-02-05 20:57:38 +00:00
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int in; /* caller writes here and closes it */
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2007-10-19 19:48:00 +00:00
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int out; /* caller reads from here and closes it */
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2009-09-16 08:20:22 +00:00
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#ifndef WIN32
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2007-10-19 19:48:00 +00:00
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pid_t pid;
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2007-12-08 21:19:14 +00:00
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#else
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HANDLE tid;
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2010-02-05 20:57:38 +00:00
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int proc_in;
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int proc_out;
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2007-12-08 21:19:14 +00:00
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#endif
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2007-10-19 19:48:00 +00:00
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};
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int start_async(struct async *async);
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int finish_async(struct async *async);
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2005-07-31 19:17:43 +00:00
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#endif
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