Merge branch 'ef/fast-export'
[git/git.git] / http.h
CommitLineData
29508e1e
NH
1#ifndef HTTP_H
2#define HTTP_H
3
4#include "cache.h"
5
6#include <curl/curl.h>
7#include <curl/easy.h>
8
028c2976 9#include "strbuf.h"
9fc6440d 10#include "remote.h"
028c2976 11
4f5f998f
JH
12/*
13 * We detect based on the cURL version if multi-transfer is
14 * usable in this implementation and define this symbol accordingly.
15 * This is not something Makefile should set nor users should pass
16 * via CFLAGS.
17 */
18#undef USE_CURL_MULTI
19
9cf04301 20#if LIBCURL_VERSION_NUM >= 0x071000
29508e1e
NH
21#define USE_CURL_MULTI
22#define DEFAULT_MAX_REQUESTS 5
23#endif
24
25#if LIBCURL_VERSION_NUM < 0x070704
26#define curl_global_cleanup() do { /* nothing */ } while(0)
27#endif
28#if LIBCURL_VERSION_NUM < 0x070800
29#define curl_global_init(a) do { /* nothing */ } while(0)
30#endif
31
500ebb01 32#if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000)
29508e1e
NH
33#define NO_CURL_EASY_DUPHANDLE
34#endif
35
c774b2dc
AH
36#if LIBCURL_VERSION_NUM < 0x070a03
37#define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
38#endif
39
c8568e13
NH
40struct slot_results
41{
42 CURLcode curl_result;
43 long http_code;
44};
45
29508e1e
NH
46struct active_request_slot
47{
48 CURL *curl;
49 FILE *local;
50 int in_use;
51 CURLcode curl_result;
52 long http_code;
baa7b67d 53 int *finished;
c8568e13 54 struct slot_results *results;
29508e1e
NH
55 void *callback_data;
56 void (*callback_func)(void *data);
57 struct active_request_slot *next;
58};
59
60struct buffer
61{
028c2976
MH
62 struct strbuf buf;
63 size_t posn;
29508e1e
NH
64};
65
66/* Curl request read/write callbacks */
f444e528
JH
67extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
68extern size_t fwrite_buffer(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
69extern size_t fwrite_null(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf);
29508e1e
NH
70
71/* Slot lifecycle functions */
72extern struct active_request_slot *get_active_slot(void);
73extern int start_active_slot(struct active_request_slot *slot);
74extern void run_active_slot(struct active_request_slot *slot);
75extern void finish_all_active_slots(void);
53f31389 76extern void release_active_slot(struct active_request_slot *slot);
29508e1e
NH
77
78#ifdef USE_CURL_MULTI
79extern void fill_active_slots(void);
fc57b6aa 80extern void add_fill_function(void *data, int (*fill)(void *));
29508e1e
NH
81extern void step_active_slots(void);
82#endif
83
9fc6440d 84extern void http_init(struct remote *remote);
29508e1e
NH
85extern void http_cleanup(void);
86
87extern int data_received;
88extern int active_requests;
89
29508e1e
NH
90extern char curl_errorstr[CURL_ERROR_SIZE];
91
e8dc37e0
MH
92static inline int missing__target(int code, int result)
93{
94 return /* file:// URL -- do we ever use one??? */
95 (result == CURLE_FILE_COULDNT_READ_FILE) ||
96 /* http:// and https:// URL */
97 (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
98 /* ftp:// URL */
99 (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
100 ;
101}
102
103#define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
104
c13b2633 105extern int http_fetch_ref(const char *base, struct ref *ref);
d7e92806 106
29508e1e 107#endif /* HTTP_H */