diff options
Diffstat (limited to 'http.h')
| -rw-r--r-- | http.h | 107 |
1 files changed, 107 insertions, 0 deletions
@@ -0,0 +1,107 @@ +#ifndef HTTP_H +#define HTTP_H + +#include "cache.h" + +#include <curl/curl.h> +#include <curl/easy.h> + +#include "strbuf.h" +#include "remote.h" + +/* + * We detect based on the cURL version if multi-transfer is + * usable in this implementation and define this symbol accordingly. + * This is not something Makefile should set nor users should pass + * via CFLAGS. + */ +#undef USE_CURL_MULTI + +#if LIBCURL_VERSION_NUM >= 0x071000 +#define USE_CURL_MULTI +#define DEFAULT_MAX_REQUESTS 5 +#endif + +#if LIBCURL_VERSION_NUM < 0x070704 +#define curl_global_cleanup() do { /* nothing */ } while(0) +#endif +#if LIBCURL_VERSION_NUM < 0x070800 +#define curl_global_init(a) do { /* nothing */ } while(0) +#endif + +#if (LIBCURL_VERSION_NUM < 0x070c04) || (LIBCURL_VERSION_NUM == 0x071000) +#define NO_CURL_EASY_DUPHANDLE +#endif + +#if LIBCURL_VERSION_NUM < 0x070a03 +#define CURLE_HTTP_RETURNED_ERROR CURLE_HTTP_NOT_FOUND +#endif + +struct slot_results +{ + CURLcode curl_result; + long http_code; +}; + +struct active_request_slot +{ + CURL *curl; + FILE *local; + int in_use; + CURLcode curl_result; + long http_code; + int *finished; + struct slot_results *results; + void *callback_data; + void (*callback_func)(void *data); + struct active_request_slot *next; +}; + +struct buffer +{ + struct strbuf buf; + size_t posn; +}; + +/* Curl request read/write callbacks */ +extern size_t fread_buffer(void *ptr, size_t eltsize, size_t nmemb, void *strbuf); +extern size_t fwrite_buffer(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf); +extern size_t fwrite_null(const void *ptr, size_t eltsize, size_t nmemb, void *strbuf); + +/* Slot lifecycle functions */ +extern struct active_request_slot *get_active_slot(void); +extern int start_active_slot(struct active_request_slot *slot); +extern void run_active_slot(struct active_request_slot *slot); +extern void finish_all_active_slots(void); +extern void release_active_slot(struct active_request_slot *slot); + +#ifdef USE_CURL_MULTI +extern void fill_active_slots(void); +extern void add_fill_function(void *data, int (*fill)(void *)); +extern void step_active_slots(void); +#endif + +extern void http_init(struct remote *remote); +extern void http_cleanup(void); + +extern int data_received; +extern int active_requests; + +extern char curl_errorstr[CURL_ERROR_SIZE]; + +static inline int missing__target(int code, int result) +{ + return /* file:// URL -- do we ever use one??? */ + (result == CURLE_FILE_COULDNT_READ_FILE) || + /* http:// and https:// URL */ + (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) || + /* ftp:// URL */ + (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE) + ; +} + +#define missing_target(a) missing__target((a)->http_code, (a)->curl_result) + +extern int http_fetch_ref(const char *base, struct ref *ref); + +#endif /* HTTP_H */ |