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Side by Side Diff: base/android/library_loader/library_loader_hooks.h

Issue 1647803004: Move base to DEPS (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 4 years, 10 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef BASE_ANDROID_LIBRARY_LOADER_LIBRARY_LOADER_HOOKS_H_
6 #define BASE_ANDROID_LIBRARY_LOADER_LIBRARY_LOADER_HOOKS_H_
7
8 #include <jni.h>
9
10 #include "base/base_export.h"
11
12 namespace base {
13 namespace android {
14
15 // The process the shared library is loaded in.
16 // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.base.library_loader
17 enum LibraryProcessType {
18 // The LibraryLoad has not been initialized.
19 PROCESS_UNINITIALIZED = 0,
20 // Shared library is running in browser process.
21 PROCESS_BROWSER = 1,
22 // Shared library is running in child process.
23 PROCESS_CHILD = 2,
24 // Shared library is running in webview process.
25 PROCESS_WEBVIEW = 3,
26 };
27
28 // Record any pending renderer histogram value as a histogram. Pending values
29 // are set by RegisterChromiumAndroidLinkerRendererHistogram.
30 BASE_EXPORT void RecordChromiumAndroidLinkerRendererHistogram();
31
32 // Registers the callbacks that allows the entry point of the library to be
33 // exposed to the calling java code. This handles only registering the
34 // the callbacks needed by the loader. Any application specific JNI bindings
35 // should happen once the native library has fully loaded, either in the library
36 // loaded hook function or later.
37 BASE_EXPORT bool RegisterLibraryLoaderEntryHook(JNIEnv* env);
38
39 // Typedef for hook function to be called (indirectly from Java) once the
40 // libraries are loaded. The hook function should register the JNI bindings
41 // required to start the application. It should return true for success and
42 // false for failure.
43 // Note: this can't use base::Callback because there is no way of initializing
44 // the default callback without using static objects, which we forbid.
45 typedef bool LibraryLoadedHook(JNIEnv* env,
46 jclass clazz);
47
48 // Set the hook function to be called (from Java) once the libraries are loaded.
49 // SetLibraryLoadedHook may only be called from JNI_OnLoad. The hook function
50 // should register the JNI bindings required to start the application.
51
52 BASE_EXPORT void SetLibraryLoadedHook(LibraryLoadedHook* func);
53
54 // Pass the version name to the loader. This used to check that the library
55 // version matches the version expected by Java before completing JNI
56 // registration.
57 // Note: argument must remain valid at least until library loading is complete.
58 BASE_EXPORT void SetVersionNumber(const char* version_number);
59
60 // Call on exit to delete the AtExitManager which OnLibraryLoadedOnUIThread
61 // created.
62 BASE_EXPORT void LibraryLoaderExitHook();
63
64 // Return the process type the shared library is loaded in.
65 BASE_EXPORT LibraryProcessType GetLibraryProcessType(JNIEnv* env);
66
67 // Initialize AtExitManager, this must be done at the begining of loading
68 // shared library.
69 void InitAtExitManager();
70
71 } // namespace android
72 } // namespace base
73
74 #endif // BASE_ANDROID_LIBRARY_LOADER_LIBRARY_LOADER_HOOKS_H_
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