git/sub-process.h

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C
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#ifndef SUBPROCESS_H
#define SUBPROCESS_H
#include "git-compat-util.h"
#include "hashmap.h"
#include "run-command.h"
/*
* Generic implementation of background process infrastructure.
* See: Documentation/technical/api-sub-process.txt
*/
/* data structures */
struct subprocess_entry {
struct hashmap_entry ent; /* must be the first member! */
const char *cmd;
struct child_process process;
};
/* subprocess functions */
extern int cmd2process_cmp(const void *unused_cmp_data,
const struct subprocess_entry *e1,
const struct subprocess_entry *e2,
const void *unused_keydata);
typedef int(*subprocess_start_fn)(struct subprocess_entry *entry);
int subprocess_start(struct hashmap *hashmap, struct subprocess_entry *entry, const char *cmd,
subprocess_start_fn startfn);
void subprocess_stop(struct hashmap *hashmap, struct subprocess_entry *entry);
struct subprocess_entry *subprocess_find_entry(struct hashmap *hashmap, const char *cmd);
/* subprocess helper functions */
static inline struct child_process *subprocess_get_child_process(
struct subprocess_entry *entry)
{
return &entry->process;
}
/*
* Helper function that will read packets looking for "status=<foo>"
* key/value pairs and return the value from the last "status" packet
*/
int subprocess_read_status(int fd, struct strbuf *status);
#endif