oxmc
f6176009b1
Stages TWRP's GUI engine and standalone tooling as PawletOS-owned modules instead of a bootable/recovery fork, per the plugin-architecture finding in NOTES-ota-recovery-ab.md: stock recovery_main.cpp already dlopen()s librecovery_ui_ext.so and dlsym()s make_device() from it at runtime, so the UI layer doesn't require touching stock bootable/recovery at all. Confirmed via source grep that recovery.cpp/install.cpp have zero references into the partition manager/backup engine/GUI code and vice versa. recovery_ui/: TWRP's gui/, minuitwrp/, libpixelflinger/ (copied verbatim, GPL-3.0), plus a new device/ providing PawletTwrpUI (a ScreenRecoveryUI subclass) and make_device() — written from scratch against stock's RecoveryUI/ScreenRecoveryUI virtual-method contract, since TWRP's own fork never ships a make_device() (every real TWRP device provides its own, and no reference device tree was available to copy from). Top-level Android.bp defines librecovery_ui_pawlet_twrp, the module TARGET_RECOVERY_UI_LIB should point at. gui/Android.bp and minuitwrp/Android.bp had their include_dirs rewritten for the new paths. recovery_toolkit/: partition manager, backup engine (tar/digest/adbbu/apex), filesystem/format support (exfat/dosfstools/gpt/fuse/mtp/crypto), scripting (openrecoveryscript/orscmd/twrpinstall), shared helpers. Source only, no Android.bp yet for any of it. Known gap blocking recovery_ui from actually linking: gui/'s libguitwrp depends on libaosprecovery, built from recovery_toolkit/helpers/twrp.cpp via a Go Soong plugin (libaosprecovery_defaults.go) not yet ported. Neither repo has been build-tested — no local AOSP build environment available in this workspace. See each directory's README.md for a precise done/not-done breakdown.
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _POSIXASYNCIO_H
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#define _POSIXASYNCIO_H
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#include <condition_variable>
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#include <mutex>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <time.h>
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#include <unistd.h>
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/**
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* Provides a subset of POSIX aio operations.
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*/
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struct aiocb {
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int aio_fildes;
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void *aio_buf;
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off64_t aio_offset;
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size_t aio_nbytes;
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// Used internally
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bool read;
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bool queued;
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ssize_t ret;
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int error;
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std::mutex lock;
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std::condition_variable cv;
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aiocb();
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~aiocb();
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};
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// Submit a request for IO to be completed
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int aio_read(struct aiocb *);
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int aio_write(struct aiocb *);
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// Suspend current thread until given IO is complete, at which point
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// its return value and any errors can be accessed
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// All submitted requests must have a corresponding suspend.
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// aiocb->aio_buf must refer to valid memory until after the suspend call
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int aio_suspend(struct aiocb *[], int, const struct timespec *);
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int aio_error(const struct aiocb *);
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ssize_t aio_return(struct aiocb *);
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// Helper method for setting aiocb members
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void aio_prepare(struct aiocb *, void*, size_t, off64_t);
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#endif // POSIXASYNCIO_H
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