Merge branch 'ho/shared'
[git/git.git] / http.h
CommitLineData
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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
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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
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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)
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33#define NO_CURL_EASY_DUPHANDLE
34#endif
35
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36#if LIBCURL_VERSION_NUM < 0x070a03
37#define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
38#endif
39
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40struct slot_results
41{
42 CURLcode curl_result;
43 long http_code;
44};
45
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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;
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55 void *callback_data;
56 void (*callback_func)(void *data);
57 struct active_request_slot *next;
58};
59
60struct buffer
61{
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62 struct strbuf buf;
63 size_t posn;
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64};
65
66/* Curl request read/write callbacks */
67extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
68 struct buffer *buffer);
69extern size_t fwrite_buffer(const void *ptr, size_t eltsize,
028c2976 70 size_t nmemb, struct strbuf *buffer);
29508e1e 71extern size_t fwrite_null(const void *ptr, size_t eltsize,
028c2976 72 size_t nmemb, struct strbuf *buffer);
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73
74/* Slot lifecycle functions */
75extern struct active_request_slot *get_active_slot(void);
76extern int start_active_slot(struct active_request_slot *slot);
77extern void run_active_slot(struct active_request_slot *slot);
78extern void finish_all_active_slots(void);
53f31389 79extern void release_active_slot(struct active_request_slot *slot);
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80
81#ifdef USE_CURL_MULTI
82extern void fill_active_slots(void);
fc57b6aa 83extern void add_fill_function(void *data, int (*fill)(void *));
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84extern void step_active_slots(void);
85#endif
86
9fc6440d 87extern void http_init(struct remote *remote);
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88extern void http_cleanup(void);
89
90extern int data_received;
91extern int active_requests;
92
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93extern char curl_errorstr[CURL_ERROR_SIZE];
94
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95static inline int missing__target(int code, int result)
96{
97 return /* file:// URL -- do we ever use one??? */
98 (result == CURLE_FILE_COULDNT_READ_FILE) ||
99 /* http:// and https:// URL */
100 (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) ||
101 /* ftp:// URL */
102 (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE)
103 ;
104}
105
106#define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
107
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108extern int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1);
109
29508e1e 110#endif /* HTTP_H */