(* libguestfs
- * Copyright (C) 2009-2010 Red Hat Inc.
+ * Copyright (C) 2009-2011 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
package com.redhat.et.libguestfs;
import java.util.HashMap;
+import java.util.Map;
import com.redhat.et.libguestfs.LibGuestFSException;
import com.redhat.et.libguestfs.PV;
import com.redhat.et.libguestfs.VG;
";
List.iter (
- fun (name, style, _, flags, _, shortdesc, longdesc) ->
+ fun (name, (ret, args, optargs as style), _, flags, _, shortdesc, longdesc) ->
if not (List.mem NotInDocs flags); then (
let doc = replace_str longdesc "C<guestfs_" "C<g." in
let doc =
+ if optargs <> [] then
+ doc ^ "\n\nOptional arguments are supplied in the final Map<String,Object> parameter, which is a hash of the argument name to its value (cast to Object). Pass an empty Map or null for no optional arguments."
+ else doc in
+ let doc =
if List.mem ProtocolLimitWarning flags then
doc ^ "\n\n" ^ protocol_limit_warning
else doc in
pr " * %s\n" doc;
pr " * @throws LibGuestFSException\n";
pr " */\n";
- pr " ";
);
+ pr " ";
generate_java_prototype ~public:true ~semicolon:false name style;
pr "\n";
pr " {\n";
pr " if (g == 0)\n";
pr " throw new LibGuestFSException (\"%s: handle is closed\");\n"
name;
- pr " ";
- if fst style <> RErr then pr "return ";
- pr "_%s " name;
- generate_java_call_args ~handle:"g" (snd style);
- pr ";\n";
+ if optargs <> [] then (
+ pr "\n";
+ pr " /* Unpack optional args. */\n";
+ pr " Object _optobj;\n";
+ pr " long _optargs_bitmask = 0;\n";
+ iteri (
+ fun i argt ->
+ let t, boxed_t, convert, n, default =
+ match argt with
+ | Bool n -> "boolean", "Boolean", ".booleanValue()", n, "false"
+ | Int n -> "int", "Integer", ".intValue()", n, "0"
+ | Int64 n -> "long", "Long", ".longValue()", n, "0"
+ | String n -> "String", "String", "", n, "\"\""
+ | _ -> assert false in
+ pr " %s %s = %s;\n" t n default;
+ pr " _optobj = null;\n";
+ pr " if (optargs != null)\n";
+ pr " _optobj = optargs.get (\"%s\");\n" n;
+ pr " if (_optobj != null) {\n";
+ pr " %s = ((%s) _optobj)%s;\n" n boxed_t convert;
+ pr " _optargs_bitmask |= %Ld;\n"
+ (Int64.shift_left Int64.one i);
+ pr " }\n";
+ ) optargs
+ );
+ pr "\n";
+ (match ret with
+ | RErr ->
+ pr " _%s " name;
+ generate_java_call_args ~handle:"g" style;
+ pr ";\n"
+ | RHashtable _ ->
+ pr " String[] r = _%s " name;
+ generate_java_call_args ~handle:"g" style;
+ pr ";\n";
+ pr "\n";
+ pr " HashMap rhash = new HashMap ();\n";
+ pr " for (int i = 0; i < r.length; i += 2)\n";
+ pr " rhash.put (r[i], r[i+1]);\n";
+ pr " return rhash;\n"
+ | _ ->
+ pr " return _%s " name;
+ generate_java_call_args ~handle:"g" style;
+ pr ";\n"
+ );
pr " }\n";
+ pr "\n";
pr " ";
generate_java_prototype ~privat:true ~native:true name style;
pr "\n";
pr "}\n"
(* Generate Java call arguments, eg "(handle, foo, bar)" *)
-and generate_java_call_args ~handle args =
+and generate_java_call_args ~handle (_, args, optargs) =
pr "(%s" handle;
List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
+ if optargs <> [] then (
+ pr ", _optargs_bitmask";
+ List.iter (fun arg -> pr ", %s" (name_of_argt arg)) optargs
+ );
pr ")"
and generate_java_prototype ?(public=false) ?(privat=false) ?(native=false)
- ?(semicolon=true) name style =
+ ?(semicolon=true) name (ret, args, optargs) =
if privat then pr "private ";
if public then pr "public ";
if native then pr "native ";
(* return type *)
- (match fst style with
+ (match ret with
| RErr -> pr "void ";
| RInt _ -> pr "int ";
| RInt64 _ -> pr "long ";
| RStructList (_, typ) ->
let name = java_name_of_struct typ in
pr "%s[] " name;
- | RHashtable _ -> pr "HashMap<String,String> ";
+ | RHashtable _ ->
+ if not native then
+ pr "Map<String,String> "
+ else
+ pr "String[] ";
);
if native then pr "_%s " name else pr "%s " name;
pr "boolean %s" n
| Int n ->
pr "int %s" n
- | Int64 n ->
+ | Int64 n | Pointer (_, n) ->
pr "long %s" n
- ) (snd style);
+ ) args;
+
+ if optargs <> [] then (
+ if !needs_comma then pr ", ";
+ needs_comma := true;
+
+ if not native then
+ pr "Map<String, Object> optargs"
+ else (
+ pr "long _optargs_bitmask";
+ List.iter (
+ fun argt ->
+ match argt with
+ | Bool n -> pr ", boolean %s" n
+ | Int n -> pr ", int %s" n
+ | Int64 n -> pr ", long %s" n
+ | String n -> pr ", String %s" n
+ | _ -> assert false
+ ) optargs
+ )
+ );
pr ")\n";
pr " throws LibGuestFSException";
";
List.iter (
- fun (name, style, _, _, _, _, _) ->
+ fun (name, (ret, args, optargs as style), _, _, _, _, _) ->
pr "JNIEXPORT ";
- (match fst style with
+ (match ret with
| RErr -> pr "void ";
| RInt _ -> pr "jint ";
| RInt64 _ -> pr "jlong ";
pr ", jboolean j%s" n
| Int n ->
pr ", jint j%s" n
- | Int64 n ->
+ | Int64 n | Pointer (_, n) ->
pr ", jlong j%s" n
- ) (snd style);
+ ) args;
+ if optargs <> [] then (
+ pr ", jlong joptargs_bitmask";
+ List.iter (
+ function
+ | Bool n -> pr ", jboolean j%s" n
+ | Int n -> pr ", jint j%s" n
+ | Int64 n -> pr ", jlong j%s" n
+ | String n -> pr ", jstring j%s" n
+ | _ -> assert false
+ ) optargs
+ );
pr ")\n";
pr "{\n";
pr " guestfs_h *g = (guestfs_h *) (long) jg;\n";
- let error_code, no_ret =
- match fst style with
- | RErr -> pr " int r;\n"; "-1", ""
- | RBool _
- | RInt _ -> pr " int r;\n"; "-1", "0"
- | RInt64 _ -> pr " int64_t r;\n"; "-1", "0"
- | RConstString _ -> pr " const char *r;\n"; "NULL", "NULL"
- | RConstOptString _ -> pr " const char *r;\n"; "NULL", "NULL"
- | RString _ ->
- pr " jstring jr;\n";
- pr " char *r;\n"; "NULL", "NULL"
- | RStringList _ ->
- pr " jobjectArray jr;\n";
- pr " int r_len;\n";
- pr " jclass cl;\n";
- pr " jstring jstr;\n";
- pr " char **r;\n"; "NULL", "NULL"
- | RStruct (_, typ) ->
- pr " jobject jr;\n";
- pr " jclass cl;\n";
- pr " jfieldID fl;\n";
- pr " struct guestfs_%s *r;\n" typ; "NULL", "NULL"
- | RStructList (_, typ) ->
- pr " jobjectArray jr;\n";
- pr " jclass cl;\n";
- pr " jfieldID fl;\n";
- pr " jobject jfl;\n";
- pr " struct guestfs_%s_list *r;\n" typ; "NULL", "NULL"
- | RHashtable _ -> pr " char **r;\n"; "NULL", "NULL"
- | RBufferOut _ ->
- pr " jstring jr;\n";
- pr " char *r;\n";
- pr " size_t size;\n";
- "NULL", "NULL" in
+ (match ret with
+ | RErr -> pr " int r;\n"
+ | RBool _
+ | RInt _ -> pr " int r;\n"
+ | RInt64 _ -> pr " int64_t r;\n"
+ | RConstString _ -> pr " const char *r;\n"
+ | RConstOptString _ -> pr " const char *r;\n"
+ | RString _ ->
+ pr " jstring jr;\n";
+ pr " char *r;\n"
+ | RStringList _
+ | RHashtable _ ->
+ pr " jobjectArray jr;\n";
+ pr " size_t r_len;\n";
+ pr " jclass cl;\n";
+ pr " jstring jstr;\n";
+ pr " char **r;\n"
+ | RStruct (_, typ) ->
+ pr " jobject jr;\n";
+ pr " jclass cl;\n";
+ pr " jfieldID fl;\n";
+ pr " struct guestfs_%s *r;\n" typ
+ | RStructList (_, typ) ->
+ pr " jobjectArray jr;\n";
+ pr " jclass cl;\n";
+ pr " jfieldID fl;\n";
+ pr " jobject jfl;\n";
+ pr " struct guestfs_%s_list *r;\n" typ
+ | RBufferOut _ ->
+ pr " jstring jr;\n";
+ pr " char *r;\n";
+ pr " size_t size;\n"
+ );
+
List.iter (
function
| Pathname n
| Key n ->
pr " const char *%s;\n" n
| BufferIn n ->
- pr " jbyte *%s;\n" n;
+ pr " char *%s;\n" n;
pr " size_t %s_size;\n" n
| StringList n | DeviceList n ->
- pr " int %s_len;\n" n;
- pr " const char **%s;\n" n
+ pr " size_t %s_len;\n" n;
+ pr " char **%s;\n" n
| Bool n
| Int n ->
pr " int %s;\n" n
| Int64 n ->
pr " int64_t %s;\n" n
- ) (snd style);
+ | Pointer (t, n) ->
+ pr " %s %s;\n" t n
+ ) args;
let needs_i =
- (match fst style with
- | RStringList _ | RStructList _ -> true
+ (match ret with
+ | RStringList _ | RStructList _ | RHashtable _ -> true
| RErr | RBool _ | RInt _ | RInt64 _ | RConstString _
| RConstOptString _
- | RString _ | RBufferOut _ | RStruct _ | RHashtable _ -> false) ||
+ | RString _ | RBufferOut _ | RStruct _ -> false) ||
List.exists (function
| StringList _ -> true
| DeviceList _ -> true
- | _ -> false) (snd style) in
+ | _ -> false) args in
if needs_i then
pr " size_t i;\n";
*)
pr " %s = j%s ? (*env)->GetStringUTFChars (env, j%s, NULL) : NULL;\n" n n n
| BufferIn n ->
- pr " %s = (*env)->GetByteArrayElements (env, j%s, NULL);\n" n n;
+ pr " %s = (char *) (*env)->GetByteArrayElements (env, j%s, NULL);\n" n n;
pr " %s_size = (*env)->GetArrayLength (env, j%s);\n" n n
| StringList n | DeviceList n ->
pr " %s_len = (*env)->GetArrayLength (env, j%s);\n" n n;
pr " for (i = 0; i < %s_len; ++i) {\n" n;
pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
n;
- pr " %s[i] = (*env)->GetStringUTFChars (env, o, NULL);\n" n;
+ pr " %s[i] = (char *) (*env)->GetStringUTFChars (env, o, NULL);\n" n;
pr " }\n";
pr " %s[%s_len] = NULL;\n" n n;
| Bool n
| Int n
| Int64 n ->
pr " %s = j%s;\n" n n
- ) (snd style);
+ | Pointer (t, n) ->
+ pr " %s = (%s) j%s;\n" n t n
+ ) args;
+
+ if optargs <> [] then (
+ pr " struct guestfs_%s_argv optargs_s;\n" name;
+ pr " const struct guestfs_%s_argv *optargs = &optargs_s;\n" name;
+ pr " optargs_s.bitmask = joptargs_bitmask;\n";
+ List.iter (
+ function
+ | Bool n
+ | Int n
+ | Int64 n ->
+ pr " optargs_s.%s = j%s;\n" n n
+ | String n ->
+ pr " optargs_s.%s = (*env)->GetStringUTFChars (env, j%s, NULL);\n"
+ n n
+ | _ -> assert false
+ ) optargs;
+ );
(* Make the call. *)
- pr " r = guestfs_%s " name;
+ if optargs = [] then
+ pr " r = guestfs_%s " name
+ else
+ pr " r = guestfs_%s_argv " name;
generate_c_call_args ~handle:"g" style;
pr ";\n";
pr " if (j%s)\n" n;
pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
| BufferIn n ->
- pr " (*env)->ReleaseByteArrayElements (env, j%s, %s, 0);\n" n n
+ pr " (*env)->ReleaseByteArrayElements (env, j%s, (jbyte *) %s, 0);\n" n n
| StringList n | DeviceList n ->
pr " for (i = 0; i < %s_len; ++i) {\n" n;
pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
pr " (*env)->ReleaseStringUTFChars (env, o, %s[i]);\n" n;
pr " }\n";
pr " free (%s);\n" n
+ | Bool _
+ | Int _
+ | Int64 _
+ | Pointer _ -> ()
+ ) args;
+
+ List.iter (
+ function
| Bool n
| Int n
| Int64 n -> ()
- ) (snd style);
+ | String n ->
+ pr " (*env)->ReleaseStringUTFChars (env, j%s, optargs_s.%s);\n" n n
+ | _ -> assert false
+ ) optargs;
(* Check for errors. *)
- pr " if (r == %s) {\n" error_code;
- pr " throw_exception (env, guestfs_last_error (g));\n";
- pr " return %s;\n" no_ret;
- pr " }\n";
+ (match errcode_of_ret ret with
+ | `CannotReturnError -> ()
+ | (`ErrorIsMinusOne|`ErrorIsNULL) as errcode ->
+ (match errcode with
+ | `ErrorIsMinusOne ->
+ pr " if (r == -1) {\n";
+ | `ErrorIsNULL ->
+ pr " if (r == NULL) {\n";
+ );
+ pr " throw_exception (env, guestfs_last_error (g));\n";
+ (match ret with
+ | RErr ->
+ pr " return;\n"
+ | RInt _
+ | RInt64 _
+ | RBool _ ->
+ pr " return -1;\n"
+ | RConstString _ | RConstOptString _ | RString _
+ | RBufferOut _
+ | RStruct _ | RHashtable _
+ | RStringList _ | RStructList _ ->
+ pr " return NULL;\n"
+ );
+ pr " }\n"
+ );
(* Return value. *)
- (match fst style with
+ (match ret with
| RErr -> ()
| RInt _ -> pr " return (jint) r;\n"
| RBool _ -> pr " return (jboolean) r;\n"
pr " jr = (*env)->NewStringUTF (env, r);\n";
pr " free (r);\n";
pr " return jr;\n"
- | RStringList _ ->
+ | RStringList _
+ | RHashtable _ ->
pr " for (r_len = 0; r[r_len] != NULL; ++r_len) ;\n";
pr " cl = (*env)->FindClass (env, \"java/lang/String\");\n";
pr " jstr = (*env)->NewStringUTF (env, \"\");\n";
let jtyp = java_name_of_struct typ in
let cols = cols_of_struct typ in
generate_java_struct_list_return typ jtyp cols
- | RHashtable _ ->
- (* XXX *)
- pr " throw_exception (env, \"%s: internal error: please let us know how to make a Java HashMap from JNI bindings!\");\n" name;
- pr " return NULL;\n"
| RBufferOut _ ->
- pr " jr = (*env)->NewStringUTF (env, r); /* XXX size */\n";
+ pr " jr = (*env)->NewStringUTF (env, r); // XXX size\n";
pr " free (r);\n";
pr " return jr;\n"
);
git.annexia.org / libguestfs.git / blobdiff