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Commit | Line | Data |
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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 MH |
9 | #include "strbuf.h" |
10 | ||
4f5f998f JH |
11 | /* |
12 | * We detect based on the cURL version if multi-transfer is | |
13 | * usable in this implementation and define this symbol accordingly. | |
14 | * This is not something Makefile should set nor users should pass | |
15 | * via CFLAGS. | |
16 | */ | |
17 | #undef USE_CURL_MULTI | |
18 | ||
9cf04301 | 19 | #if LIBCURL_VERSION_NUM >= 0x071000 |
29508e1e NH |
20 | #define USE_CURL_MULTI |
21 | #define DEFAULT_MAX_REQUESTS 5 | |
22 | #endif | |
23 | ||
24 | #if LIBCURL_VERSION_NUM < 0x070704 | |
25 | #define curl_global_cleanup() do { /* nothing */ } while(0) | |
26 | #endif | |
27 | #if LIBCURL_VERSION_NUM < 0x070800 | |
28 | #define curl_global_init(a) do { /* nothing */ } while(0) | |
29 | #endif | |
30 | ||
500ebb01 | 31 | #if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000) |
29508e1e NH |
32 | #define NO_CURL_EASY_DUPHANDLE |
33 | #endif | |
34 | ||
c774b2dc AH |
35 | #if LIBCURL_VERSION_NUM < 0x070a03 |
36 | #define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND | |
37 | #endif | |
38 | ||
c8568e13 NH |
39 | struct slot_results |
40 | { | |
41 | CURLcode curl_result; | |
42 | long http_code; | |
43 | }; | |
44 | ||
29508e1e NH |
45 | struct active_request_slot |
46 | { | |
47 | CURL *curl; | |
48 | FILE *local; | |
49 | int in_use; | |
50 | CURLcode curl_result; | |
51 | long http_code; | |
baa7b67d | 52 | int *finished; |
c8568e13 | 53 | struct slot_results *results; |
29508e1e NH |
54 | void *callback_data; |
55 | void (*callback_func)(void *data); | |
56 | struct active_request_slot *next; | |
57 | }; | |
58 | ||
59 | struct buffer | |
60 | { | |
028c2976 MH |
61 | struct strbuf buf; |
62 | size_t posn; | |
29508e1e NH |
63 | }; |
64 | ||
65 | /* Curl request read/write callbacks */ | |
66 | extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, | |
67 | struct buffer *buffer); | |
68 | extern size_t fwrite_buffer(const void *ptr, size_t eltsize, | |
028c2976 | 69 | size_t nmemb, struct strbuf *buffer); |
29508e1e | 70 | extern size_t fwrite_null(const void *ptr, size_t eltsize, |
028c2976 | 71 | size_t nmemb, struct strbuf *buffer); |
29508e1e NH |
72 | |
73 | /* Slot lifecycle functions */ | |
74 | extern struct active_request_slot *get_active_slot(void); | |
75 | extern int start_active_slot(struct active_request_slot *slot); | |
76 | extern void run_active_slot(struct active_request_slot *slot); | |
77 | extern void finish_all_active_slots(void); | |
53f31389 | 78 | extern void release_active_slot(struct active_request_slot *slot); |
29508e1e NH |
79 | |
80 | #ifdef USE_CURL_MULTI | |
81 | extern void fill_active_slots(void); | |
fc57b6aa | 82 | extern void add_fill_function(void *data, int (*fill)(void *)); |
29508e1e NH |
83 | extern void step_active_slots(void); |
84 | #endif | |
85 | ||
86 | extern void http_init(void); | |
87 | extern void http_cleanup(void); | |
88 | ||
89 | extern int data_received; | |
90 | extern int active_requests; | |
91 | ||
29508e1e NH |
92 | extern char curl_errorstr[CURL_ERROR_SIZE]; |
93 | ||
e8dc37e0 MH |
94 | static inline int missing__target(int code, int result) |
95 | { | |
96 | return /* file:// URL -- do we ever use one??? */ | |
97 | (result == CURLE_FILE_COULDNT_READ_FILE) || | |
98 | /* http:// and https:// URL */ | |
99 | (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) || | |
100 | /* ftp:// URL */ | |
101 | (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE) | |
102 | ; | |
103 | } | |
104 | ||
105 | #define missing_target(a) missing__target((a)->http_code, (a)->curl_result) | |
106 | ||
d7e92806 MH |
107 | extern int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1); |
108 | ||
29508e1e | 109 | #endif /* HTTP_H */ |