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109 lines
2.7 KiB
109 lines
2.7 KiB
#ifndef HTTP_H |
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#define HTTP_H |
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#include "cache.h" |
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#include <curl/curl.h> |
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#include <curl/easy.h> |
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#include "strbuf.h" |
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/* |
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* We detect based on the cURL version if multi-transfer is |
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* usable in this implementation and define this symbol accordingly. |
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* This is not something Makefile should set nor users should pass |
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* via CFLAGS. |
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*/ |
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#undef USE_CURL_MULTI |
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#if LIBCURL_VERSION_NUM >= 0x071000 |
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#define USE_CURL_MULTI |
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#define DEFAULT_MAX_REQUESTS 5 |
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#endif |
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#if LIBCURL_VERSION_NUM < 0x070704 |
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#define curl_global_cleanup() do { /* nothing */ } while(0) |
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#endif |
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#if LIBCURL_VERSION_NUM < 0x070800 |
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#define curl_global_init(a) do { /* nothing */ } while(0) |
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#endif |
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#if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000) |
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#define NO_CURL_EASY_DUPHANDLE |
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#endif |
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#if LIBCURL_VERSION_NUM < 0x070a03 |
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#define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND |
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#endif |
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struct slot_results |
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{ |
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CURLcode curl_result; |
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long http_code; |
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}; |
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struct active_request_slot |
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{ |
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CURL *curl; |
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FILE *local; |
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int in_use; |
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CURLcode curl_result; |
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long http_code; |
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int *finished; |
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struct slot_results *results; |
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void *callback_data; |
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void (*callback_func)(void *data); |
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struct active_request_slot *next; |
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}; |
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struct buffer |
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{ |
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struct strbuf buf; |
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size_t posn; |
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}; |
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/* Curl request read/write callbacks */ |
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extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, |
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struct buffer *buffer); |
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extern size_t fwrite_buffer(const void *ptr, size_t eltsize, |
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size_t nmemb, struct strbuf *buffer); |
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extern size_t fwrite_null(const void *ptr, size_t eltsize, |
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size_t nmemb, struct strbuf *buffer); |
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/* Slot lifecycle functions */ |
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extern struct active_request_slot *get_active_slot(void); |
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extern int start_active_slot(struct active_request_slot *slot); |
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extern void run_active_slot(struct active_request_slot *slot); |
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extern void finish_all_active_slots(void); |
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extern void release_active_slot(struct active_request_slot *slot); |
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#ifdef USE_CURL_MULTI |
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extern void fill_active_slots(void); |
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extern void add_fill_function(void *data, int (*fill)(void *)); |
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extern void step_active_slots(void); |
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#endif |
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extern void http_init(void); |
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extern void http_cleanup(void); |
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extern int data_received; |
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extern int active_requests; |
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extern char curl_errorstr[CURL_ERROR_SIZE]; |
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static inline int missing__target(int code, int result) |
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{ |
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return /* file:// URL -- do we ever use one??? */ |
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(result == CURLE_FILE_COULDNT_READ_FILE) || |
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/* http:// and https:// URL */ |
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(code == 404 && result == CURLE_HTTP_RETURNED_ERROR) || |
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/* ftp:// URL */ |
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(code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE) |
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; |
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} |
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#define missing_target(a) missing__target((a)->http_code, (a)->curl_result) |
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extern int http_fetch_ref(const char *base, const char *ref, unsigned char *sha1); |
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#endif /* HTTP_H */
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