remote-curl: define struct for CURLOPT_WRITEFUNCTION

In order to pass more values for rpc_in, define a struct and pass it as
an additional value.

Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/remote-curl.c b/remote-curl.c
index d8eda2380a31fc28b903772a854f444296ab8e22..d4673b6e8ccab241072b5577d914612acf675b04 100644 (file)
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -545,14 +545,22 @@ static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
 }
 #endif
 
+struct rpc_in_data {
+       struct rpc_state *rpc;
+};
+
+/*
+ * A callback for CURLOPT_WRITEFUNCTION. The return value is the bytes consumed
+ * from ptr.
+ */
 static size_t rpc_in(char *ptr, size_t eltsize,
                size_t nmemb, void *buffer_)
 {
        size_t size = eltsize * nmemb;
-       struct rpc_state *rpc = buffer_;
+       struct rpc_in_data *data = buffer_;
        if (size)
-               rpc->any_written = 1;
-       write_or_die(rpc->in, ptr, size);
+               data->rpc->any_written = 1;
+       write_or_die(data->rpc->in, ptr, size);
        return size;
 }
 
@@ -632,6 +640,7 @@ static int post_rpc(struct rpc_state *rpc)
        size_t gzip_size = 0;
        int err, large_request = 0;
        int needs_100_continue = 0;
+       struct rpc_in_data rpc_in_data;
 
        /* Try to load the entire request, if we can fit it into the
         * allocated buffer space we can use HTTP/1.0 and avoid the
@@ -764,7 +773,8 @@ static int post_rpc(struct rpc_state *rpc)
 
        curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in);
-       curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc);
+       rpc_in_data.rpc = rpc;
+       curl_easy_setopt(slot->curl, CURLOPT_FILE, &rpc_in_data);
 
 
        rpc->any_written = 0;