Merge "More cleanup to imgdiff & imgpatch"
diff --git a/updater/blockimg.cpp b/updater/blockimg.cpp
index 03ce413..6227154 100644
--- a/updater/blockimg.cpp
+++ b/updater/blockimg.cpp
@@ -32,6 +32,7 @@
#include <unistd.h>
#include <fec/io.h>
+#include <functional>
#include <memory>
#include <string>
#include <unordered_map>
@@ -473,88 +474,54 @@
return fn;
}
-typedef void (*StashCallback)(const std::string&, void*);
+// Does a best effort enumeration of stash files. Ignores possible non-file items in the stash
+// directory and continues despite of errors. Calls the 'callback' function for each file.
+static void EnumerateStash(const std::string& dirname,
+ const std::function<void(const std::string&)>& callback) {
+ if (dirname.empty()) return;
-// Does a best effort enumeration of stash files. Ignores possible non-file
-// items in the stash directory and continues despite of errors. Calls the
-// 'callback' function for each file and passes 'data' to the function as a
-// parameter.
+ std::unique_ptr<DIR, decltype(&closedir)> directory(opendir(dirname.c_str()), closedir);
-static void EnumerateStash(const std::string& dirname, StashCallback callback, void* data) {
- if (dirname.empty() || callback == nullptr) {
- return;
+ if (directory == nullptr) {
+ if (errno != ENOENT) {
+ PLOG(ERROR) << "opendir \"" << dirname << "\" failed";
}
-
- std::unique_ptr<DIR, int(*)(DIR*)> directory(opendir(dirname.c_str()), closedir);
-
- if (directory == nullptr) {
- if (errno != ENOENT) {
- PLOG(ERROR) << "opendir \"" << dirname << "\" failed";
- }
- return;
- }
-
- struct dirent* item;
- while ((item = readdir(directory.get())) != nullptr) {
- if (item->d_type != DT_REG) {
- continue;
- }
-
- std::string fn = dirname + "/" + std::string(item->d_name);
- callback(fn, data);
- }
-}
-
-static void UpdateFileSize(const std::string& fn, void* data) {
- if (fn.empty() || !data) {
return;
}
- struct stat sb;
- if (stat(fn.c_str(), &sb) == -1) {
- PLOG(ERROR) << "stat \"" << fn << "\" failed";
- return;
+ dirent* item;
+ while ((item = readdir(directory.get())) != nullptr) {
+ if (item->d_type != DT_REG) continue;
+ callback(dirname + "/" + item->d_name);
}
-
- size_t* size = static_cast<size_t*>(data);
- *size += sb.st_size;
}
// Deletes the stash directory and all files in it. Assumes that it only
// contains files. There is nothing we can do about unlikely, but possible
// errors, so they are merely logged.
+static void DeleteFile(const std::string& fn) {
+ if (fn.empty()) return;
-static void DeleteFile(const std::string& fn, void* /* data */) {
- if (!fn.empty()) {
- LOG(INFO) << "deleting " << fn;
+ LOG(INFO) << "deleting " << fn;
- if (unlink(fn.c_str()) == -1 && errno != ENOENT) {
- PLOG(ERROR) << "unlink \"" << fn << "\" failed";
- }
- }
-}
-
-static void DeletePartial(const std::string& fn, void* data) {
- if (android::base::EndsWith(fn, ".partial")) {
- DeleteFile(fn, data);
- }
+ if (unlink(fn.c_str()) == -1 && errno != ENOENT) {
+ PLOG(ERROR) << "unlink \"" << fn << "\" failed";
+ }
}
static void DeleteStash(const std::string& base) {
- if (base.empty()) {
- return;
+ if (base.empty()) return;
+
+ LOG(INFO) << "deleting stash " << base;
+
+ std::string dirname = GetStashFileName(base, "", "");
+ EnumerateStash(dirname, DeleteFile);
+
+ if (rmdir(dirname.c_str()) == -1) {
+ if (errno != ENOENT && errno != ENOTDIR) {
+ PLOG(ERROR) << "rmdir \"" << dirname << "\" failed";
}
-
- LOG(INFO) << "deleting stash " << base;
-
- std::string dirname = GetStashFileName(base, "", "");
- EnumerateStash(dirname, DeleteFile, nullptr);
-
- if (rmdir(dirname.c_str()) == -1) {
- if (errno != ENOENT && errno != ENOTDIR) {
- PLOG(ERROR) << "rmdir \"" << dirname << "\" failed";
- }
- }
+ }
}
static int LoadStash(CommandParameters& params, const std::string& base, const std::string& id,
@@ -624,7 +591,7 @@
if (verify && VerifyBlocks(id, buffer, *blocks, true) != 0) {
LOG(ERROR) << "unexpected contents in " << fn;
- DeleteFile(fn, nullptr);
+ DeleteFile(fn);
return -1;
}
@@ -750,13 +717,24 @@
LOG(INFO) << "using existing stash " << dirname;
- // If the directory already exists, calculate the space already allocated to
- // stash files and check if there's enough for all required blocks. Delete any
- // partially completed stash files first.
+ // If the directory already exists, calculate the space already allocated to stash files and check
+ // if there's enough for all required blocks. Delete any partially completed stash files first.
+ EnumerateStash(dirname, [](const std::string& fn) {
+ if (android::base::EndsWith(fn, ".partial")) {
+ DeleteFile(fn);
+ }
+ });
- EnumerateStash(dirname, DeletePartial, nullptr);
size_t existing = 0;
- EnumerateStash(dirname, UpdateFileSize, &existing);
+ EnumerateStash(dirname, [&existing](const std::string& fn) {
+ if (fn.empty()) return;
+ struct stat sb;
+ if (stat(fn.c_str(), &sb) == -1) {
+ PLOG(ERROR) << "stat \"" << fn << "\" failed";
+ return;
+ }
+ existing += static_cast<size_t>(sb.st_size);
+ });
if (max_stash_size > existing) {
size_t needed = max_stash_size - existing;
@@ -817,14 +795,13 @@
}
static int FreeStash(const std::string& base, const std::string& id) {
- if (base.empty() || id.empty()) {
- return -1;
- }
+ if (base.empty() || id.empty()) {
+ return -1;
+ }
- std::string fn = GetStashFileName(base, id, "");
- DeleteFile(fn, nullptr);
+ DeleteFile(GetStashFileName(base, id, ""));
- return 0;
+ return 0;
}
static void MoveRange(std::vector<uint8_t>& dest, const RangeSet& locs,