http.h

   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
   9 #if LIBCURL_VERSION_NUM >= 0x070908
  10 #define USE_CURL_MULTI
  11 #define DEFAULT_MAX_REQUESTS 5
  12 #endif
  13
  14 #if LIBCURL_VERSION_NUM < 0x070704
  15 #define curl_global_cleanup() do { /* nothing */ } while(0)
  16 #endif
  17 #if LIBCURL_VERSION_NUM < 0x070800
  18 #define curl_global_init(a) do { /* nothing */ } while(0)
  19 #endif
  20
  21 #if LIBCURL_VERSION_NUM < 0x070c04
  22 #define NO_CURL_EASY_DUPHANDLE
  23 #endif
  24
  25 struct active_request_slot
  26 {
  27         CURL *curl;
  28         FILE *local;
  29         int in_use;
  30         CURLcode curl_result;
  31         long http_code;
  32         void *callback_data;
  33         void (*callback_func)(void *data);
  34         struct active_request_slot *next;
  35 };
  36
  37 struct buffer
  38 {
  39         size_t posn;
  40         size_t size;
  41         void *buffer;
  42 };
  43
  44 /* Curl request read/write callbacks */
  45 extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb,
  46                            struct buffer *buffer);
  47 extern size_t fwrite_buffer(const void *ptr, size_t eltsize,
  48                             size_t nmemb, struct buffer *buffer);
  49 extern size_t fwrite_null(const void *ptr, size_t eltsize,
  50                           size_t nmemb, struct buffer *buffer);
  51
  52 /* Slot lifecycle functions */
  53 extern struct active_request_slot *get_active_slot(void);
  54 extern int start_active_slot(struct active_request_slot *slot);
  55 extern void run_active_slot(struct active_request_slot *slot);
  56 extern void finish_all_active_slots(void);
  57
  58 #ifdef USE_CURL_MULTI
  59 extern void fill_active_slots(void);
  60 extern void step_active_slots(void);
  61 #endif
  62
  63 extern void http_init(void);
  64 extern void http_cleanup(void);
  65
  66 extern int data_received;
  67 extern int active_requests;
  68
  69 #ifdef USE_CURL_MULTI
  70 extern int max_requests;
  71 extern CURLM *curlm;
  72 #endif
  73 #ifndef NO_CURL_EASY_DUPHANDLE
  74 extern CURL *curl_default;
  75 #endif
  76 extern char curl_errorstr[CURL_ERROR_SIZE];
  77
  78 extern int curl_ssl_verify;
  79 extern char *ssl_cert;
  80 #if LIBCURL_VERSION_NUM >= 0x070902
  81 extern char *ssl_key;
  82 #endif
  83 #if LIBCURL_VERSION_NUM >= 0x070908
  84 extern char *ssl_capath;
  85 #endif
  86 extern char *ssl_cainfo;
  87 extern long curl_low_speed_limit;
  88 extern long curl_low_speed_time;
  89
  90 extern struct curl_slist *pragma_header;
  91 extern struct curl_slist *no_range_header;
  92
  93 extern struct active_request_slot *active_queue_head;
  94
  95 #endif /* HTTP_H */