Move signal_blocker to platform and use it by default in TEMP_FAILURE_RETRY.

runtime/bin/directory_linux.cc

Index: runtime/bin/directory_linux.cc
diff --git a/runtime/bin/directory_linux.cc b/runtime/bin/directory_linux.cc
index c37b58b1ebd42179b52212eb7198bd0f107deca8..3bffda5e9ce3f13100721dfc074de8b67ec422b5 100644
--- a/runtime/bin/directory_linux.cc
+++ b/runtime/bin/directory_linux.cc
@@ -15,6 +15,7 @@
 #include <sys/stat.h>  // NOLINT
 #include <unistd.h>  // NOLINT
 
+#include "platform/signal_blocker.h"
 #include "bin/file.h"
 #include "bin/platform.h"
 
@@ -105,9 +106,9 @@ ListType DirectoryListingEntry::Next(DirectoryListing* listing) {
   int status = 0;
   dirent entry;
   dirent* result;
-  if ((status = TEMP_FAILURE_RETRY(readdir_r(reinterpret_cast<DIR*>(lister_),
-                                   &entry,
-                                   &result))) == 0 &&
+  if ((status = readdir_r(reinterpret_cast<DIR*>(lister_),
+                          &entry,
+                          &result)) == 0 &&
       result != NULL) {
     if (!listing->path_buffer().Add(entry.d_name)) {
       done_ = true;
@@ -133,8 +134,7 @@ ListType DirectoryListingEntry::Next(DirectoryListing* listing) {
         // the file pointed to.
         struct stat64 entry_info;
         int stat_success;
-        stat_success = TEMP_FAILURE_RETRY(
-            lstat64(listing->path_buffer().AsString(), &entry_info));
+        stat_success = lstat64(listing->path_buffer().AsString(), &entry_info);
         if (stat_success == -1) {
           return kListError;
         }
@@ -152,8 +152,7 @@ ListType DirectoryListingEntry::Next(DirectoryListing* listing) {
             }
             previous = previous->next;
           }
-          stat_success = TEMP_FAILURE_RETRY(
-              stat64(listing->path_buffer().AsString(), &entry_info));
+          stat_success = stat64(listing->path_buffer().AsString(), &entry_info);
           if (stat_success == -1) {
             // Report a broken link as a link, even if follow_links is true.
             return kListLink;
@@ -233,7 +232,7 @@ static bool DeleteRecursively(PathBuffer* path) {
   // Do not recurse into links for deletion. Instead delete the link.
   // If it's a file, delete it.
   struct stat64 st;
-  if (TEMP_FAILURE_RETRY(lstat64(path->AsString(), &st)) == -1) {
+  if (lstat64(path->AsString(), &st) == -1) {
     return false;
   } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) {
     return (unlink(path->AsString()) == 0);
@@ -258,9 +257,7 @@ static bool DeleteRecursively(PathBuffer* path) {
   bool success = true;
   dirent entry;
   dirent* result;
-  while ((read = TEMP_FAILURE_RETRY(readdir_r(dir_pointer,
-                                              &entry,
-                                              &result))) == 0 &&
+  while ((read = readdir_r(dir_pointer, &entry, &result)) == 0 &&
          result != NULL &&
          success) {
     switch (entry.d_type) {
@@ -283,8 +280,7 @@ static bool DeleteRecursively(PathBuffer* path) {
         // readdir_r. For those we use lstat to determine the entry
         // type.
         struct stat64 entry_info;
-        int lstat_success = TEMP_FAILURE_RETRY(
-            lstat64(path->AsString(), &entry_info));
+        int lstat_success = lstat64(path->AsString(), &entry_info);
         if (lstat_success == -1) {
           success = false;
           break;
@@ -317,7 +313,7 @@ static bool DeleteRecursively(PathBuffer* path) {
 
 Directory::ExistsResult Directory::Exists(const char* dir_name) {
   struct stat64 entry_info;
-  int success = TEMP_FAILURE_RETRY(stat64(dir_name, &entry_info));
+  int success = stat64(dir_name, &entry_info);
   if (success == 0) {
     if (S_ISDIR(entry_info.st_mode)) {
       return EXISTS;
@@ -361,15 +357,14 @@ char* Directory::Current() {
 
 
 bool Directory::SetCurrent(const char* path) {
-  int result = TEMP_FAILURE_RETRY(chdir(path));
-  return result == 0;
+  return chdir(path) == 0;
 }
 
 
 bool Directory::Create(const char* dir_name) {
   // Create the directory with the permissions specified by the
   // process umask.
-  int result = TEMP_FAILURE_RETRY(mkdir(dir_name, 0777));
+  int result = mkdir(dir_name, 0777);
   // If the directory already exists, treat it as a success.
   if (result == -1 && errno == EEXIST) {
     return (Exists(dir_name) == EXISTS);
@@ -422,9 +417,9 @@ bool Directory::Delete(const char* dir_name, bool recursive) {
   if (!recursive) {
     if (File::GetType(dir_name, false) == File::kIsLink &&
         File::GetType(dir_name, true) == File::kIsDirectory) {
-      return (TEMP_FAILURE_RETRY(unlink(dir_name)) == 0);
+      return unlink(dir_name) == 0;
     }
-    return (TEMP_FAILURE_RETRY(rmdir(dir_name)) == 0);
+    return rmdir(dir_name) == 0;
   } else {
     PathBuffer path;
     if (!path.Add(dir_name)) {
@@ -438,7 +433,7 @@ bool Directory::Delete(const char* dir_name, bool recursive) {
 bool Directory::Rename(const char* path, const char* new_path) {
   ExistsResult exists = Exists(path);
   if (exists != EXISTS) return false;
-  return (TEMP_FAILURE_RETRY(rename(path, new_path)) == 0);
+  return rename(path, new_path) == 0;
 }
 
 }  // namespace bin