Andrew's git / gitweb.git / sub-process.h
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sub-process.hon commit builtin/fetch cleanup: always set default value for submodule recursing (e8906a9)
   1#ifndef SUBPROCESS_H
   2#define SUBPROCESS_H
   3
   4#include "git-compat-util.h"
   5#include "hashmap.h"
   6#include "run-command.h"
   7
   8/*
   9 * Generic implementation of background process infrastructure.
  10 * See: Documentation/technical/api-sub-process.txt
  11 */
  12
  13 /* data structures */
  14
  15struct subprocess_entry {
  16        struct hashmap_entry ent; /* must be the first member! */
  17        const char *cmd;
  18        struct child_process process;
  19};
  20
  21/* subprocess functions */
  22
  23int cmd2process_cmp(const struct subprocess_entry *e1,
  24        const struct subprocess_entry *e2, const void *unused);
  25
  26typedef int(*subprocess_start_fn)(struct subprocess_entry *entry);
  27int subprocess_start(struct hashmap *hashmap, struct subprocess_entry *entry, const char *cmd,
  28                subprocess_start_fn startfn);
  29
  30void subprocess_stop(struct hashmap *hashmap, struct subprocess_entry *entry);
  31
  32struct subprocess_entry *subprocess_find_entry(struct hashmap *hashmap, const char *cmd);
  33
  34/* subprocess helper functions */
  35
  36static inline struct child_process *subprocess_get_child_process(
  37                struct subprocess_entry *entry)
  38{
  39        return &entry->process;
  40}
  41
  42/*
  43 * Helper function that will read packets looking for "status=<foo>"
  44 * key/value pairs and return the value from the last "status" packet
  45 */
  46
  47int subprocess_read_status(int fd, struct strbuf *status);
  48
  49#endif