Add another fast-import example, this time for .zip files
[git/platforms.git] / http.h
bloba04fc6a9277945a7084e718753c133ed47d13691
1 #ifndef HTTP_H
2 #define HTTP_H
4 #include "cache.h"
6 #include <curl/curl.h>
7 #include <curl/easy.h>
9 #include "strbuf.h"
10 #include "remote.h"
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.
18 #undef USE_CURL_MULTI
20 #if LIBCURL_VERSION_NUM >= 0x071000
21 #define USE_CURL_MULTI
22 #define DEFAULT_MAX_REQUESTS 5
23 #endif
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
32 #if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000)
33 #define NO_CURL_EASY_DUPHANDLE
34 #endif
36 #if LIBCURL_VERSION_NUM < 0x070a03
37 #define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND
38 #endif
40 struct slot_results
42 CURLcode curl_result;
43 long http_code;
46 struct active_request_slot
48 CURL *curl;
49 FILE *local;
50 int in_use;
51 CURLcode curl_result;
52 long http_code;
53 int *finished;
54 struct slot_results *results;
55 void *callback_data;
56 void (*callback_func)(void *data);
57 struct active_request_slot *next;
60 struct buffer
62 struct strbuf buf;
63 size_t posn;
66 /* Curl request read/write callbacks */
67 extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
68 struct buffer *buffer);
69 extern size_t fwrite_buffer(const void *ptr, size_t eltsize,
70 size_t nmemb, struct strbuf *buffer);
71 extern size_t fwrite_null(const void *ptr, size_t eltsize,
72 size_t nmemb, struct strbuf *buffer);
74 /* Slot lifecycle functions */
75 extern struct active_request_slot *get_active_slot(void);
76 extern int start_active_slot(struct active_request_slot *slot);
77 extern void run_active_slot(struct active_request_slot *slot);
78 extern void finish_all_active_slots(void);
79 extern void release_active_slot(struct active_request_slot *slot);
81 #ifdef USE_CURL_MULTI
82 extern void fill_active_slots(void);
83 extern void add_fill_function(void *data, int (*fill)(void *));
84 extern void step_active_slots(void);
85 #endif
87 extern void http_init(struct remote *remote);
88 extern void http_cleanup(void);
90 extern int data_received;
91 extern int active_requests;
93 extern char curl_errorstr[CURL_ERROR_SIZE];
95 static inline int missing__target(int code, int result)
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)
106 #define missing_target(a) missing__target((a)->http_code, (a)->curl_result)
108 extern int http_fetch_ref(const char *base, struct ref *ref);
110 #endif /* HTTP_H */