http_send.c: Introduce http_write.

[paraslash.git] / http_send.c

diff --git a/http_send.c b/http_send.c
index 69e75ccb80eddd0badfdf49aadaadcf6e75e8417..ec7c51355fdfad5b695b6a9b2c9a941801cc4570 100644 (file)
--- a/http_send.c
+++ b/http_send.c
@@ -116,19 +116,37 @@ static int http_send_err_msg(struct http_client *hc)
        return http_send_msg(hc, HTTP_ERR_MSG);
 }
 
+/*
+ * ret: Negative on errors, zero if nothing was written and write returned
+ * EAGAIN, number of bytes written else.
+ */
+static int http_write(int fd, const char *buf, size_t len)
+{
+       size_t written = 0;
+
+       while (written < len) {
+               int ret = write(fd, buf + written, len - written);
+               if (ret < 0 && errno == EAGAIN)
+                       return written;
+               if (ret < 0)
+                       return -ERRNO_TO_PARA_ERROR(errno);
+               written += ret;
+       }
+       return written;
+}
+
+
 static int send_queued_chunks(struct http_client *hc)
 {
        struct queued_chunk *qc;
        while ((qc = cq_peek(hc->cq))) {
                char *buf;
                size_t len;
-               int ret = write_ok(hc->fd);
-               if (ret <= 0)
-                       return ret? -E_WRITE_OK : 0;
+               int ret;
                cq_get(qc, &buf, &len);
-               ret = write(hc->fd, buf, len);
+               ret = http_write(hc->fd, buf, len);
                if (ret < 0)
-                       return -E_SEND_QUEUED_CHUNK;
+                       return ret;
                cq_update(hc->cq, ret);
                if (ret != len)
                        return 1;