strm->msg ? strm->msg : "no message");
return status;
}
+
+void git_deflate_init(z_streamp strm, int level)
+{
+ int status = deflateInit(strm, level);
+
+ if (status == Z_OK)
+ return;
+ die("deflateInit: %s (%s)", zerr_to_string(status),
+ strm->msg ? strm->msg : "no message");
+}
+
+void git_deflate_init_gzip(z_streamp strm, int level)
+{
+ /*
+ * Use default 15 bits, +16 is to generate gzip header/trailer
+ * instead of the zlib wrapper.
+ */
+ const int windowBits = 15 + 16;
+ int status = deflateInit2(strm, level,
+ Z_DEFLATED, windowBits,
+ 8, Z_DEFAULT_STRATEGY);
+ if (status == Z_OK)
+ return;
+ die("deflateInit2: %s (%s)", zerr_to_string(status),
+ strm->msg ? strm->msg : "no message");
+}
+
+void git_deflate_end(z_streamp strm)
+{
+ int status = deflateEnd(strm);
+
+ if (status == Z_OK)
+ return;
+ error("deflateEnd: %s (%s)", zerr_to_string(status),
+ strm->msg ? strm->msg : "no message");
+}
+
+int git_deflate_end_gently(z_streamp strm)
+{
+ return deflateEnd(strm);
+}
+
+int git_deflate(z_streamp strm, int flush)
+{
+ int status = deflate(strm, flush);
+
+ switch (status) {
+ /* Z_BUF_ERROR: normal, needs more space in the output buffer */
+ case Z_BUF_ERROR:
+ case Z_OK:
+ case Z_STREAM_END:
+ return status;
+
+ case Z_MEM_ERROR:
+ die("deflate: out of memory");
+ default:
+ break;
+ }
+ error("deflate: %s (%s)", zerr_to_string(status),
+ strm->msg ? strm->msg : "no message");
+ return status;
+}