universal7885: parts-aidl: Concat swap related code to one file

Also run clang-format

universal7885-common/apps/aidl-support/parts/default/Android.bp

@@ -5,7 +5,6 @@ cc_binary {
         "FlashLight.cpp",
         "Display.cpp",
         "Swap.cpp",
-        "SwapHelpers.cpp",
 	"SmartCharge.cpp",
         "service.cpp",
     ],

universal7885-common/apps/aidl-support/parts/default/Swap.cpp

@@ -1,4 +1,4 @@
-// Copyright (C) 2021 Eureka Team
+// Copyright (C) 2022 Eureka Team
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
@@ -13,15 +13,98 @@
 // limitations under the License.
 
 #include "Swap.h"
+#include <cerrno>
+#include <cstdio>
+#include <cstring>
+#include <fcntl.h>
 #include <fstream>
 #include <iostream>
 #include <mutex>
+#include <sys/stat.h>
 #include <sys/swap.h>
+#include <sys/types.h>
 #include <thread>
 #include <unistd.h>
+#include <vector>
 
-extern int mkswap(const char *filename);
-extern void mkfile(int filesize, const char *name);
+namespace {
+
+/* XXX This needs to be obtained from kernel headers. See b/9336527 */
+struct linux_swap_header {
+  char bootbits[1024]; /* Space for disklabel etc. */
+  u_int32_t version;
+  u_int32_t last_page;
+  u_int32_t nr_badpages;
+  unsigned char sws_uuid[16];
+  unsigned char sws_volume[16];
+  u_int32_t padding[117];
+  u_int32_t badpages[1];
+};
+
+void mkfile(int filesize, const char *path) {
+  std::vector<char> empty(1024, 0);
+  std::ofstream ofs(std::string(path), std::ios::binary | std::ios::out);
+
+  for (int i = 0; i < 1024 * filesize; i++) {
+    ofs.write(empty.data(), empty.size());
+  }
+}
+
+#define MAGIC_SWAP_HEADER "SWAPSPACE2"
+#define MAGIC_SWAP_HEADER_LEN 10
+#define MIN_PAGES 10
+
+int mkswap(const char *filename) {
+  int err = 0;
+  int fd;
+  ssize_t len;
+  off_t swap_size;
+  int pagesize;
+  struct linux_swap_header sw_hdr;
+  fd = open(filename, O_WRONLY | O_CLOEXEC);
+  if (fd < 0) {
+    err = errno;
+    return err;
+  }
+  pagesize = getpagesize();
+  /* Determine the length of the swap file */
+  swap_size = lseek(fd, 0, SEEK_END);
+  if (swap_size < MIN_PAGES * pagesize) {
+    err = -ENOSPC;
+    goto err;
+  }
+  if (lseek(fd, 0, SEEK_SET)) {
+    err = errno;
+    goto err;
+  }
+  memset(&sw_hdr, 0, sizeof(sw_hdr));
+  sw_hdr.version = 1;
+  sw_hdr.last_page = (swap_size / pagesize) - 1;
+  len = write(fd, &sw_hdr, sizeof(sw_hdr));
+  if (len != sizeof(sw_hdr)) {
+    err = errno;
+    goto err;
+  }
+  /* Write the magic header */
+  if (lseek(fd, pagesize - MAGIC_SWAP_HEADER_LEN, SEEK_SET) < 0) {
+    err = errno;
+    goto err;
+  }
+  len = write(fd, MAGIC_SWAP_HEADER, MAGIC_SWAP_HEADER_LEN);
+  if (len != MAGIC_SWAP_HEADER_LEN) {
+    err = errno;
+    goto err;
+  }
+  if (fsync(fd) < 0) {
+    err = errno;
+    goto err;
+  }
+err:
+  close(fd);
+  return err;
+}
+
+} // namespace
 
 constexpr const char *SWAP_PATH = "/data/swap/swapfile";
 
@@ -29,9 +112,7 @@ namespace aidl::vendor::eureka::hardware::parts {
 
 static std::mutex thread_lock;
 
-static inline bool swapfile_exist(void) {
-  return access(SWAP_PATH, F_OK) == 0;
-}
+static inline bool swapfile_exist(void) { return access(SWAP_PATH, F_OK) == 0; }
 
 static void makeFile(int32_t mSwapSize) {
   const std::lock_guard<std::mutex> lock(thread_lock);
@@ -40,7 +121,8 @@ static void makeFile(int32_t mSwapSize) {
 }
 
 ::ndk::ScopedAStatus SwapOnData::makeSwapFile(int32_t size) {
-  if (swapfile_exist()) return ::ndk::ScopedAStatus::ok();
+  if (swapfile_exist())
+    return ::ndk::ScopedAStatus::ok();
   std::thread makefile_thread(makeFile, size);
   makefile_thread.detach();
 
@@ -53,7 +135,8 @@ static void rmswap(void) {
 }
 
 ::ndk::ScopedAStatus SwapOnData::removeSwapFile(void) {
-  if (!swapfile_exist()) return ::ndk::ScopedAStatus::ok();
+  if (!swapfile_exist())
+    return ::ndk::ScopedAStatus::ok();
   std::thread rmswap_thread(rmswap);
   rmswap_thread.detach();
   return ::ndk::ScopedAStatus::ok();
@@ -61,12 +144,15 @@ static void rmswap(void) {
 
 static void swapon_func(cb_t cb) {
   const std::lock_guard<std::mutex> lock(thread_lock);
-  int res = swapon(SWAP_PATH, (10 << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK);
-  if (cb != nullptr) cb->respondToBool(res == 0);
+  int res =
+      swapon(SWAP_PATH, (10 << SWAP_FLAG_PRIO_SHIFT) & SWAP_FLAG_PRIO_MASK);
+  if (cb != nullptr)
+    cb->respondToBool(res == 0);
 }
 
 ::ndk::ScopedAStatus SwapOnData::setSwapOn(cb_t cb) {
-  if (!swapfile_exist()) return ::ndk::ScopedAStatus::ok();
+  if (!swapfile_exist())
+    return ::ndk::ScopedAStatus::ok();
   std::thread swapon_thread(swapon_func, cb);
   swapon_thread.detach();
   return ::ndk::ScopedAStatus::ok();
@@ -78,18 +164,19 @@ static void swapoff_func(void) {
 }
 
 ::ndk::ScopedAStatus SwapOnData::setSwapOff() {
-  if (!swapfile_exist()) return ::ndk::ScopedAStatus::ok();
+  if (!swapfile_exist())
+    return ::ndk::ScopedAStatus::ok();
   std::thread swapoff_thread(swapoff_func);
   swapoff_thread.detach();
   return ::ndk::ScopedAStatus::ok();
 }
 
 ::ndk::ScopedAStatus SwapOnData::isMutexLocked(bool *_aidl_return) {
-  if (thread_lock.try_lock()) { 
-	  thread_lock.unlock(); 
-	  *_aidl_return = false; 
-  } else { 
-	  *_aidl_return = true; 
+  if (thread_lock.try_lock()) {
+    thread_lock.unlock();
+    *_aidl_return = false;
+  } else {
+    *_aidl_return = true;
   }
   return ::ndk::ScopedAStatus::ok();
 }

universal7885-common/apps/aidl-support/parts/default/Swap.h

@@ -18,7 +18,7 @@
 
 namespace aidl::vendor::eureka::hardware::parts {
 
-using cb_t = const std::shared_ptr<IBoolCallback>&;
+using cb_t = const std::shared_ptr<IBoolCallback> &;
 
 struct SwapOnData : public BnSwapOnData {
   // Methods from ::aidl::vendor::eureka::hardware::parts::ISwapOnData
@@ -29,4 +29,4 @@ struct SwapOnData : public BnSwapOnData {
   ::ndk::ScopedAStatus setSwapOff(void);
   ::ndk::ScopedAStatus isMutexLocked(bool *_aidl_return);
 };
-} // namespace vendor::eureka::hardware::parts::V1_0
+} // namespace aidl::vendor::eureka::hardware::parts

universal7885-common/apps/aidl-support/parts/default/SwapHelpers.cpp

@@ -1,82 +0,0 @@
-#include <cerrno>
-#include <cstdio>
-#include <cstring>
-#include <fcntl.h>
-#include <fstream>
-#include <iostream>
-#include <sys/stat.h>
-#include <sys/swap.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <vector>
-/* XXX This needs to be obtained from kernel headers. See b/9336527 */
-struct linux_swap_header {
-  char bootbits[1024]; /* Space for disklabel etc. */
-  u_int32_t version;
-  u_int32_t last_page;
-  u_int32_t nr_badpages;
-  unsigned char sws_uuid[16];
-  unsigned char sws_volume[16];
-  u_int32_t padding[117];
-  u_int32_t badpages[1];
-};
-void mkfile(int filesize, const char *path) {
-  std::vector<char> empty(1024, 0);
-  std::ofstream ofs(std::string(path), std::ios::binary | std::ios::out);
-
-  for (int i = 0; i < 1024 * filesize; i++) {
-    ofs.write(&empty[0], empty.size());
-  }
-}
-#define MAGIC_SWAP_HEADER "SWAPSPACE2"
-#define MAGIC_SWAP_HEADER_LEN 10
-#define MIN_PAGES 10
-int mkswap(const char *filename) {
-  int err = 0;
-  int fd;
-  ssize_t len;
-  off_t swap_size;
-  int pagesize;
-  struct linux_swap_header sw_hdr;
-  fd = open(filename, O_WRONLY | O_CLOEXEC);
-  if (fd < 0) {
-    err = errno;
-    return err;
-  }
-  pagesize = getpagesize();
-  /* Determine the length of the swap file */
-  swap_size = lseek(fd, 0, SEEK_END);
-  if (swap_size < MIN_PAGES * pagesize) {
-    err = -ENOSPC;
-    goto err;
-  }
-  if (lseek(fd, 0, SEEK_SET)) {
-    err = errno;
-    goto err;
-  }
-  memset(&sw_hdr, 0, sizeof(sw_hdr));
-  sw_hdr.version = 1;
-  sw_hdr.last_page = (swap_size / pagesize) - 1;
-  len = write(fd, &sw_hdr, sizeof(sw_hdr));
-  if (len != sizeof(sw_hdr)) {
-    err = errno;
-    goto err;
-  }
-  /* Write the magic header */
-  if (lseek(fd, pagesize - MAGIC_SWAP_HEADER_LEN, SEEK_SET) < 0) {
-    err = errno;
-    goto err;
-  }
-  len = write(fd, MAGIC_SWAP_HEADER, MAGIC_SWAP_HEADER_LEN);
-  if (len != MAGIC_SWAP_HEADER_LEN) {
-    err = errno;
-    goto err;
-  }
-  if (fsync(fd) < 0) {
-    err = errno;
-    goto err;
-  }
-err:
-  close(fd);
-  return err;
-}