1 files changed, 38 insertions, 8 deletions
diff --git a/src/core/compression/algorithm.c b/src/core/compression/algorithm.c
index 4db48df6cb..e426241d0a 100644
--- a/src/core/compression/algorithm.c
+++ b/src/core/compression/algorithm.c
@@ -32,21 +32,39 @@
  */
 
 #include <stdlib.h>
+#include <string.h>
 #include <grpc/compression.h>
 
-const char *grpc_compression_algorithm_name(
-    grpc_compression_algorithm algorithm) {
+int grpc_compression_algorithm_parse(const char* name,
+                                     grpc_compression_algorithm *algorithm) {
+  if (strcmp(name, "none") == 0) {
+    *algorithm = GRPC_COMPRESS_NONE;
+  } else if (strcmp(name, "gzip") == 0) {
+    *algorithm = GRPC_COMPRESS_GZIP;
+  } else if (strcmp(name, "deflate") == 0) {
+    *algorithm = GRPC_COMPRESS_DEFLATE;
+  } else {
+    return 0;
+  }
+  return 1;
+}
+
+int grpc_compression_algorithm_name(grpc_compression_algorithm algorithm,
+                                    char **name) {
   switch (algorithm) {
     case GRPC_COMPRESS_NONE:
-      return "none";
+      *name = "none";
+      break;
     case GRPC_COMPRESS_DEFLATE:
-      return "deflate";
+      *name = "deflate";
+      break;
     case GRPC_COMPRESS_GZIP:
-      return "gzip";
-    case GRPC_COMPRESS_ALGORITHMS_COUNT:
-      return "error";
+      *name = "gzip";
+      break;
+    default:
+      return 0;
   }
-  return "error";
+  return 1;
 }
 
 /* TODO(dgq): Add the ability to specify parameters to the individual
@@ -65,3 +83,15 @@ grpc_compression_algorithm grpc_compression_algorithm_for_level(
       abort();
   }
 }
+
+grpc_compression_level grpc_compression_level_for_algorithm(
+    grpc_compression_algorithm algorithm) {
+  grpc_compression_level clevel;
+  for (clevel = GRPC_COMPRESS_LEVEL_NONE; clevel < GRPC_COMPRESS_LEVEL_COUNT;
+       ++clevel) {
+    if (grpc_compression_algorithm_for_level(clevel) == algorithm) {
+      return clevel;
+    }
+  }
+  abort();
+}